From d681640140604d15ef20825a2453c7918e0a02e9 Mon Sep 17 00:00:00 2001 From: Andrew Dolgov Date: Fri, 29 Jun 2018 09:37:16 +0300 Subject: initial for epubjs v0.3 --- lib/epub.js | 9225 +---------------------------------------------------------- 1 file changed, 1 insertion(+), 9224 deletions(-) (limited to 'lib/epub.js') diff --git a/lib/epub.js b/lib/epub.js index 277d998..f52a7d2 100644 --- a/lib/epub.js +++ b/lib/epub.js @@ -1,9224 +1 @@ -/*! - * @overview RSVP - a tiny implementation of Promises/A+. - * @copyright Copyright (c) 2016 Yehuda Katz, Tom Dale, Stefan Penner and contributors - * @license Licensed under MIT license - * See https://raw.githubusercontent.com/tildeio/rsvp.js/master/LICENSE - * @version 3.5.0 - */ - -(function (global, factory) { - typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : - typeof define === 'function' && define.amd ? define(['exports'], factory) : - (factory((global.RSVP = global.RSVP || {}))); -}(this, (function (exports) { 'use strict'; - -function indexOf(callbacks, callback) { - for (var i = 0, l = callbacks.length; i < l; i++) { - if (callbacks[i] === callback) { - return i; - } - } - - return -1; -} - -function callbacksFor(object) { - var callbacks = object._promiseCallbacks; - - if (!callbacks) { - callbacks = object._promiseCallbacks = {}; - } - - return callbacks; -} - -/** - @class RSVP.EventTarget -*/ -var EventTarget = { - - /** - `RSVP.EventTarget.mixin` extends an object with EventTarget methods. For - Example: - ```javascript - let object = {}; - RSVP.EventTarget.mixin(object); - object.on('finished', function(event) { - // handle event - }); - object.trigger('finished', { detail: value }); - ``` - `EventTarget.mixin` also works with prototypes: - ```javascript - let Person = function() {}; - RSVP.EventTarget.mixin(Person.prototype); - let yehuda = new Person(); - let tom = new Person(); - yehuda.on('poke', function(event) { - console.log('Yehuda says OW'); - }); - tom.on('poke', function(event) { - console.log('Tom says OW'); - }); - yehuda.trigger('poke'); - tom.trigger('poke'); - ``` - @method mixin - @for RSVP.EventTarget - @private - @param {Object} object object to extend with EventTarget methods - */ - mixin: function mixin(object) { - object['on'] = this['on']; - object['off'] = this['off']; - object['trigger'] = this['trigger']; - object._promiseCallbacks = undefined; - return object; - }, - - /** - Registers a callback to be executed when `eventName` is triggered - ```javascript - object.on('event', function(eventInfo){ - // handle the event - }); - object.trigger('event'); - ``` - @method on - @for RSVP.EventTarget - @private - @param {String} eventName name of the event to listen for - @param {Function} callback function to be called when the event is triggered. - */ - on: function on(eventName, callback) { - if (typeof callback !== 'function') { - throw new TypeError('Callback must be a function'); - } - - var allCallbacks = callbacksFor(this), - callbacks = undefined; - - callbacks = allCallbacks[eventName]; - - if (!callbacks) { - callbacks = allCallbacks[eventName] = []; - } - - if (indexOf(callbacks, callback) === -1) { - callbacks.push(callback); - } - }, - - /** - You can use `off` to stop firing a particular callback for an event: - ```javascript - function doStuff() { // do stuff! } - object.on('stuff', doStuff); - object.trigger('stuff'); // doStuff will be called - // Unregister ONLY the doStuff callback - object.off('stuff', doStuff); - object.trigger('stuff'); // doStuff will NOT be called - ``` - If you don't pass a `callback` argument to `off`, ALL callbacks for the - event will not be executed when the event fires. For example: - ```javascript - let callback1 = function(){}; - let callback2 = function(){}; - object.on('stuff', callback1); - object.on('stuff', callback2); - object.trigger('stuff'); // callback1 and callback2 will be executed. - object.off('stuff'); - object.trigger('stuff'); // callback1 and callback2 will not be executed! - ``` - @method off - @for RSVP.EventTarget - @private - @param {String} eventName event to stop listening to - @param {Function} callback optional argument. If given, only the function - given will be removed from the event's callback queue. If no `callback` - argument is given, all callbacks will be removed from the event's callback - queue. - */ - off: function off(eventName, callback) { - var allCallbacks = callbacksFor(this), - callbacks = undefined, - index = undefined; - - if (!callback) { - allCallbacks[eventName] = []; - return; - } - - callbacks = allCallbacks[eventName]; - - index = indexOf(callbacks, callback); - - if (index !== -1) { - callbacks.splice(index, 1); - } - }, - - /** - Use `trigger` to fire custom events. For example: - ```javascript - object.on('foo', function(){ - console.log('foo event happened!'); - }); - object.trigger('foo'); - // 'foo event happened!' logged to the console - ``` - You can also pass a value as a second argument to `trigger` that will be - passed as an argument to all event listeners for the event: - ```javascript - object.on('foo', function(value){ - console.log(value.name); - }); - object.trigger('foo', { name: 'bar' }); - // 'bar' logged to the console - ``` - @method trigger - @for RSVP.EventTarget - @private - @param {String} eventName name of the event to be triggered - @param {*} options optional value to be passed to any event handlers for - the given `eventName` - */ - trigger: function trigger(eventName, options, label) { - var allCallbacks = callbacksFor(this), - callbacks = undefined, - callback = undefined; - - if (callbacks = allCallbacks[eventName]) { - // Don't cache the callbacks.length since it may grow - for (var i = 0; i < callbacks.length; i++) { - callback = callbacks[i]; - - callback(options, label); - } - } - } -}; - -var config = { - instrument: false -}; - -EventTarget['mixin'](config); - -function configure(name, value) { - if (name === 'onerror') { - // handle for legacy users that expect the actual - // error to be passed to their function added via - // `RSVP.configure('onerror', someFunctionHere);` - config['on']('error', value); - return; - } - - if (arguments.length === 2) { - config[name] = value; - } else { - return config[name]; - } -} - -function objectOrFunction(x) { - return typeof x === 'function' || typeof x === 'object' && x !== null; -} - -function isFunction(x) { - return typeof x === 'function'; -} - -function isMaybeThenable(x) { - return typeof x === 'object' && x !== null; -} - -var _isArray = undefined; -if (!Array.isArray) { - _isArray = function (x) { - return Object.prototype.toString.call(x) === '[object Array]'; - }; -} else { - _isArray = Array.isArray; -} - -var isArray = _isArray; - -// Date.now is not available in browsers < IE9 -// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/now#Compatibility -var now = Date.now || function () { - return new Date().getTime(); -}; - -function F() {} - -var o_create = Object.create || function (o) { - if (arguments.length > 1) { - throw new Error('Second argument not supported'); - } - if (typeof o !== 'object') { - throw new TypeError('Argument must be an object'); - } - F.prototype = o; - return new F(); -}; - -var queue = []; - -function scheduleFlush() { - setTimeout(function () { - for (var i = 0; i < queue.length; i++) { - var entry = queue[i]; - - var payload = entry.payload; - - payload.guid = payload.key + payload.id; - payload.childGuid = payload.key + payload.childId; - if (payload.error) { - payload.stack = payload.error.stack; - } - - config['trigger'](entry.name, entry.payload); - } - queue.length = 0; - }, 50); -} -function instrument$1(eventName, promise, child) { - if (1 === queue.push({ - name: eventName, - payload: { - key: promise._guidKey, - id: promise._id, - eventName: eventName, - detail: promise._result, - childId: child && child._id, - label: promise._label, - timeStamp: now(), - error: config["instrument-with-stack"] ? new Error(promise._label) : null - } })) { - scheduleFlush(); - } -} - -/** - `RSVP.Promise.resolve` returns a promise that will become resolved with the - passed `value`. It is shorthand for the following: - - ```javascript - let promise = new RSVP.Promise(function(resolve, reject){ - resolve(1); - }); - - promise.then(function(value){ - // value === 1 - }); - ``` - - Instead of writing the above, your code now simply becomes the following: - - ```javascript - let promise = RSVP.Promise.resolve(1); - - promise.then(function(value){ - // value === 1 - }); - ``` - - @method resolve - @static - @param {*} object value that the returned promise will be resolved with - @param {String} label optional string for identifying the returned promise. - Useful for tooling. - @return {Promise} a promise that will become fulfilled with the given - `value` -*/ -function resolve$1(object, label) { - /*jshint validthis:true */ - var Constructor = this; - - if (object && typeof object === 'object' && object.constructor === Constructor) { - return object; - } - - var promise = new Constructor(noop, label); - resolve(promise, object); - return promise; -} - -function withOwnPromise() { - return new TypeError('A promises callback cannot return that same promise.'); -} - -function noop() {} - -var PENDING = void 0; -var FULFILLED = 1; -var REJECTED = 2; - -var GET_THEN_ERROR = new ErrorObject(); - -function getThen(promise) { - try { - return promise.then; - } catch (error) { - GET_THEN_ERROR.error = error; - return GET_THEN_ERROR; - } -} - -function tryThen(then$$1, value, fulfillmentHandler, rejectionHandler) { - try { - then$$1.call(value, fulfillmentHandler, rejectionHandler); - } catch (e) { - return e; - } -} - -function handleForeignThenable(promise, thenable, then$$1) { - config.async(function (promise) { - var sealed = false; - var error = tryThen(then$$1, thenable, function (value) { - if (sealed) { - return; - } - sealed = true; - if (thenable !== value) { - resolve(promise, value, undefined); - } else { - fulfill(promise, value); - } - }, function (reason) { - if (sealed) { - return; - } - sealed = true; - - reject(promise, reason); - }, 'Settle: ' + (promise._label || ' unknown promise')); - - if (!sealed && error) { - sealed = true; - reject(promise, error); - } - }, promise); -} - -function handleOwnThenable(promise, thenable) { - if (thenable._state === FULFILLED) { - fulfill(promise, thenable._result); - } else if (thenable._state === REJECTED) { - thenable._onError = null; - reject(promise, thenable._result); - } else { - subscribe(thenable, undefined, function (value) { - if (thenable !== value) { - resolve(promise, value, undefined); - } else { - fulfill(promise, value); - } - }, function (reason) { - return reject(promise, reason); - }); - } -} - -function handleMaybeThenable(promise, maybeThenable, then$$1) { - if (maybeThenable.constructor === promise.constructor && then$$1 === then && promise.constructor.resolve === resolve$1) { - handleOwnThenable(promise, maybeThenable); - } else { - if (then$$1 === GET_THEN_ERROR) { - reject(promise, GET_THEN_ERROR.error); - GET_THEN_ERROR.error = null; - } else if (then$$1 === undefined) { - fulfill(promise, maybeThenable); - } else if (isFunction(then$$1)) { - handleForeignThenable(promise, maybeThenable, then$$1); - } else { - fulfill(promise, maybeThenable); - } - } -} - -function resolve(promise, value) { - if (promise === value) { - fulfill(promise, value); - } else if (objectOrFunction(value)) { - handleMaybeThenable(promise, value, getThen(value)); - } else { - fulfill(promise, value); - } -} - -function publishRejection(promise) { - if (promise._onError) { - promise._onError(promise._result); - } - - publish(promise); -} - -function fulfill(promise, value) { - if (promise._state !== PENDING) { - return; - } - - promise._result = value; - promise._state = FULFILLED; - - if (promise._subscribers.length === 0) { - if (config.instrument) { - instrument$1('fulfilled', promise); - } - } else { - config.async(publish, promise); - } -} - -function reject(promise, reason) { - if (promise._state !== PENDING) { - return; - } - promise._state = REJECTED; - promise._result = reason; - config.async(publishRejection, promise); -} - -function subscribe(parent, child, onFulfillment, onRejection) { - var subscribers = parent._subscribers; - var length = subscribers.length; - - parent._onError = null; - - subscribers[length] = child; - subscribers[length + FULFILLED] = onFulfillment; - subscribers[length + REJECTED] = onRejection; - - if (length === 0 && parent._state) { - config.async(publish, parent); - } -} - -function publish(promise) { - var subscribers = promise._subscribers; - var settled = promise._state; - - if (config.instrument) { - instrument$1(settled === FULFILLED ? 'fulfilled' : 'rejected', promise); - } - - if (subscribers.length === 0) { - return; - } - - var child = undefined, - callback = undefined, - detail = promise._result; - - for (var i = 0; i < subscribers.length; i += 3) { - child = subscribers[i]; - callback = subscribers[i + settled]; - - if (child) { - invokeCallback(settled, child, callback, detail); - } else { - callback(detail); - } - } - - promise._subscribers.length = 0; -} - -function ErrorObject() { - this.error = null; -} - -var TRY_CATCH_ERROR = new ErrorObject(); - -function tryCatch(callback, detail) { - try { - return callback(detail); - } catch (e) { - TRY_CATCH_ERROR.error = e; - return TRY_CATCH_ERROR; - } -} - -function invokeCallback(settled, promise, callback, detail) { - var hasCallback = isFunction(callback), - value = undefined, - error = undefined, - succeeded = undefined, - failed = undefined; - - if (hasCallback) { - value = tryCatch(callback, detail); - - if (value === TRY_CATCH_ERROR) { - failed = true; - error = value.error; - value.error = null; // release - } else { - succeeded = true; - } - - if (promise === value) { - reject(promise, withOwnPromise()); - return; - } - } else { - value = detail; - succeeded = true; - } - - if (promise._state !== PENDING) { - // noop - } else if (hasCallback && succeeded) { - resolve(promise, value); - } else if (failed) { - reject(promise, error); - } else if (settled === FULFILLED) { - fulfill(promise, value); - } else if (settled === REJECTED) { - reject(promise, value); - } -} - -function initializePromise(promise, resolver) { - var resolved = false; - try { - resolver(function (value) { - if (resolved) { - return; - } - resolved = true; - resolve(promise, value); - }, function (reason) { - if (resolved) { - return; - } - resolved = true; - reject(promise, reason); - }); - } catch (e) { - reject(promise, e); - } -} - -function then(onFulfillment, onRejection, label) { - var _arguments = arguments; - - var parent = this; - var state = parent._state; - - if (state === FULFILLED && !onFulfillment || state === REJECTED && !onRejection) { - config.instrument && instrument$1('chained', parent, parent); - return parent; - } - - parent._onError = null; - - var child = new parent.constructor(noop, label); - var result = parent._result; - - config.instrument && instrument$1('chained', parent, child); - - if (state) { - (function () { - var callback = _arguments[state - 1]; - config.async(function () { - return invokeCallback(state, child, callback, result); - }); - })(); - } else { - subscribe(parent, child, onFulfillment, onRejection); - } - - return child; -} - -function makeSettledResult(state, position, value) { - if (state === FULFILLED) { - return { - state: 'fulfilled', - value: value - }; - } else { - return { - state: 'rejected', - reason: value - }; - } -} - -function Enumerator(Constructor, input, abortOnReject, label) { - this._instanceConstructor = Constructor; - this.promise = new Constructor(noop, label); - this._abortOnReject = abortOnReject; - - if (this._validateInput(input)) { - this._input = input; - this.length = input.length; - this._remaining = input.length; - - this._init(); - - if (this.length === 0) { - fulfill(this.promise, this._result); - } else { - this.length = this.length || 0; - this._enumerate(); - if (this._remaining === 0) { - fulfill(this.promise, this._result); - } - } - } else { - reject(this.promise, this._validationError()); - } -} - -Enumerator.prototype._validateInput = function (input) { - return isArray(input); -}; - -Enumerator.prototype._validationError = function () { - return new Error('Array Methods must be provided an Array'); -}; - -Enumerator.prototype._init = function () { - this._result = new Array(this.length); -}; - -Enumerator.prototype._enumerate = function () { - var length = this.length; - var promise = this.promise; - var input = this._input; - - for (var i = 0; promise._state === PENDING && i < length; i++) { - this._eachEntry(input[i], i); - } -}; - -Enumerator.prototype._settleMaybeThenable = function (entry, i) { - var c = this._instanceConstructor; - var resolve$$1 = c.resolve; - - if (resolve$$1 === resolve$1) { - var then$$1 = getThen(entry); - - if (then$$1 === then && entry._state !== PENDING) { - entry._onError = null; - this._settledAt(entry._state, i, entry._result); - } else if (typeof then$$1 !== 'function') { - this._remaining--; - this._result[i] = this._makeResult(FULFILLED, i, entry); - } else if (c === Promise$1) { - var promise = new c(noop); - handleMaybeThenable(promise, entry, then$$1); - this._willSettleAt(promise, i); - } else { - this._willSettleAt(new c(function (resolve$$1) { - return resolve$$1(entry); - }), i); - } - } else { - this._willSettleAt(resolve$$1(entry), i); - } -}; - -Enumerator.prototype._eachEntry = function (entry, i) { - if (isMaybeThenable(entry)) { - this._settleMaybeThenable(entry, i); - } else { - this._remaining--; - this._result[i] = this._makeResult(FULFILLED, i, entry); - } -}; - -Enumerator.prototype._settledAt = function (state, i, value) { - var promise = this.promise; - - if (promise._state === PENDING) { - this._remaining--; - - if (this._abortOnReject && state === REJECTED) { - reject(promise, value); - } else { - this._result[i] = this._makeResult(state, i, value); - } - } - - if (this._remaining === 0) { - fulfill(promise, this._result); - } -}; - -Enumerator.prototype._makeResult = function (state, i, value) { - return value; -}; - -Enumerator.prototype._willSettleAt = function (promise, i) { - var enumerator = this; - - subscribe(promise, undefined, function (value) { - return enumerator._settledAt(FULFILLED, i, value); - }, function (reason) { - return enumerator._settledAt(REJECTED, i, reason); - }); -}; - -/** - `RSVP.Promise.all` accepts an array of promises, and returns a new promise which - is fulfilled with an array of fulfillment values for the passed promises, or - rejected with the reason of the first passed promise to be rejected. It casts all - elements of the passed iterable to promises as it runs this algorithm. - - Example: - - ```javascript - let promise1 = RSVP.resolve(1); - let promise2 = RSVP.resolve(2); - let promise3 = RSVP.resolve(3); - let promises = [ promise1, promise2, promise3 ]; - - RSVP.Promise.all(promises).then(function(array){ - // The array here would be [ 1, 2, 3 ]; - }); - ``` - - If any of the `promises` given to `RSVP.all` are rejected, the first promise - that is rejected will be given as an argument to the returned promises's - rejection handler. For example: - - Example: - - ```javascript - let promise1 = RSVP.resolve(1); - let promise2 = RSVP.reject(new Error("2")); - let promise3 = RSVP.reject(new Error("3")); - let promises = [ promise1, promise2, promise3 ]; - - RSVP.Promise.all(promises).then(function(array){ - // Code here never runs because there are rejected promises! - }, function(error) { - // error.message === "2" - }); - ``` - - @method all - @static - @param {Array} entries array of promises - @param {String} label optional string for labeling the promise. - Useful for tooling. - @return {Promise} promise that is fulfilled when all `promises` have been - fulfilled, or rejected if any of them become rejected. - @static -*/ -function all$1(entries, label) { - return new Enumerator(this, entries, true, /* abort on reject */label).promise; -} - -/** - `RSVP.Promise.race` returns a new promise which is settled in the same way as the - first passed promise to settle. - - Example: - - ```javascript - let promise1 = new RSVP.Promise(function(resolve, reject){ - setTimeout(function(){ - resolve('promise 1'); - }, 200); - }); - - let promise2 = new RSVP.Promise(function(resolve, reject){ - setTimeout(function(){ - resolve('promise 2'); - }, 100); - }); - - RSVP.Promise.race([promise1, promise2]).then(function(result){ - // result === 'promise 2' because it was resolved before promise1 - // was resolved. - }); - ``` - - `RSVP.Promise.race` is deterministic in that only the state of the first - settled promise matters. For example, even if other promises given to the - `promises` array argument are resolved, but the first settled promise has - become rejected before the other promises became fulfilled, the returned - promise will become rejected: - - ```javascript - let promise1 = new RSVP.Promise(function(resolve, reject){ - setTimeout(function(){ - resolve('promise 1'); - }, 200); - }); - - let promise2 = new RSVP.Promise(function(resolve, reject){ - setTimeout(function(){ - reject(new Error('promise 2')); - }, 100); - }); - - RSVP.Promise.race([promise1, promise2]).then(function(result){ - // Code here never runs - }, function(reason){ - // reason.message === 'promise 2' because promise 2 became rejected before - // promise 1 became fulfilled - }); - ``` - - An example real-world use case is implementing timeouts: - - ```javascript - RSVP.Promise.race([ajax('foo.json'), timeout(5000)]) - ``` - - @method race - @static - @param {Array} entries array of promises to observe - @param {String} label optional string for describing the promise returned. - Useful for tooling. - @return {Promise} a promise which settles in the same way as the first passed - promise to settle. -*/ -function race$1(entries, label) { - /*jshint validthis:true */ - var Constructor = this; - - var promise = new Constructor(noop, label); - - if (!isArray(entries)) { - reject(promise, new TypeError('You must pass an array to race.')); - return promise; - } - - for (var i = 0; promise._state === PENDING && i < entries.length; i++) { - subscribe(Constructor.resolve(entries[i]), undefined, function (value) { - return resolve(promise, value); - }, function (reason) { - return reject(promise, reason); - }); - } - - return promise; -} - -/** - `RSVP.Promise.reject` returns a promise rejected with the passed `reason`. - It is shorthand for the following: - - ```javascript - let promise = new RSVP.Promise(function(resolve, reject){ - reject(new Error('WHOOPS')); - }); - - promise.then(function(value){ - // Code here doesn't run because the promise is rejected! - }, function(reason){ - // reason.message === 'WHOOPS' - }); - ``` - - Instead of writing the above, your code now simply becomes the following: - - ```javascript - let promise = RSVP.Promise.reject(new Error('WHOOPS')); - - promise.then(function(value){ - // Code here doesn't run because the promise is rejected! - }, function(reason){ - // reason.message === 'WHOOPS' - }); - ``` - - @method reject - @static - @param {*} reason value that the returned promise will be rejected with. - @param {String} label optional string for identifying the returned promise. - Useful for tooling. - @return {Promise} a promise rejected with the given `reason`. -*/ -function reject$1(reason, label) { - /*jshint validthis:true */ - var Constructor = this; - var promise = new Constructor(noop, label); - reject(promise, reason); - return promise; -} - -var guidKey = 'rsvp_' + now() + '-'; -var counter = 0; - -function needsResolver() { - throw new TypeError('You must pass a resolver function as the first argument to the promise constructor'); -} - -function needsNew() { - throw new TypeError("Failed to construct 'Promise': Please use the 'new' operator, this object constructor cannot be called as a function."); -} - -/** - Promise objects represent the eventual result of an asynchronous operation. The - primary way of interacting with a promise is through its `then` method, which - registers callbacks to receive either a promise’s eventual value or the reason - why the promise cannot be fulfilled. - - Terminology - ----------- - - - `promise` is an object or function with a `then` method whose behavior conforms to this specification. - - `thenable` is an object or function that defines a `then` method. - - `value` is any legal JavaScript value (including undefined, a thenable, or a promise). - - `exception` is a value that is thrown using the throw statement. - - `reason` is a value that indicates why a promise was rejected. - - `settled` the final resting state of a promise, fulfilled or rejected. - - A promise can be in one of three states: pending, fulfilled, or rejected. - - Promises that are fulfilled have a fulfillment value and are in the fulfilled - state. Promises that are rejected have a rejection reason and are in the - rejected state. A fulfillment value is never a thenable. - - Promises can also be said to *resolve* a value. If this value is also a - promise, then the original promise's settled state will match the value's - settled state. So a promise that *resolves* a promise that rejects will - itself reject, and a promise that *resolves* a promise that fulfills will - itself fulfill. - - - Basic Usage: - ------------ - - ```js - let promise = new Promise(function(resolve, reject) { - // on success - resolve(value); - - // on failure - reject(reason); - }); - - promise.then(function(value) { - // on fulfillment - }, function(reason) { - // on rejection - }); - ``` - - Advanced Usage: - --------------- - - Promises shine when abstracting away asynchronous interactions such as - `XMLHttpRequest`s. - - ```js - function getJSON(url) { - return new Promise(function(resolve, reject){ - let xhr = new XMLHttpRequest(); - - xhr.open('GET', url); - xhr.onreadystatechange = handler; - xhr.responseType = 'json'; - xhr.setRequestHeader('Accept', 'application/json'); - xhr.send(); - - function handler() { - if (this.readyState === this.DONE) { - if (this.status === 200) { - resolve(this.response); - } else { - reject(new Error('getJSON: `' + url + '` failed with status: [' + this.status + ']')); - } - } - }; - }); - } - - getJSON('/posts.json').then(function(json) { - // on fulfillment - }, function(reason) { - // on rejection - }); - ``` - - Unlike callbacks, promises are great composable primitives. - - ```js - Promise.all([ - getJSON('/posts'), - getJSON('/comments') - ]).then(function(values){ - values[0] // => postsJSON - values[1] // => commentsJSON - - return values; - }); - ``` - - @class RSVP.Promise - @param {function} resolver - @param {String} label optional string for labeling the promise. - Useful for tooling. - @constructor -*/ -function Promise$1(resolver, label) { - this._id = counter++; - this._label = label; - this._state = undefined; - this._result = undefined; - this._subscribers = []; - - config.instrument && instrument$1('created', this); - - if (noop !== resolver) { - typeof resolver !== 'function' && needsResolver(); - this instanceof Promise$1 ? initializePromise(this, resolver) : needsNew(); - } -} - -Promise$1.cast = resolve$1; // deprecated -Promise$1.all = all$1; -Promise$1.race = race$1; -Promise$1.resolve = resolve$1; -Promise$1.reject = reject$1; - -Promise$1.prototype = { - constructor: Promise$1, - - _guidKey: guidKey, - - _onError: function _onError(reason) { - var promise = this; - config.after(function () { - if (promise._onError) { - config['trigger']('error', reason, promise._label); - } - }); - }, - - /** - The primary way of interacting with a promise is through its `then` method, - which registers callbacks to receive either a promise's eventual value or the - reason why the promise cannot be fulfilled. - - ```js - findUser().then(function(user){ - // user is available - }, function(reason){ - // user is unavailable, and you are given the reason why - }); - ``` - - Chaining - -------- - - The return value of `then` is itself a promise. This second, 'downstream' - promise is resolved with the return value of the first promise's fulfillment - or rejection handler, or rejected if the handler throws an exception. - - ```js - findUser().then(function (user) { - return user.name; - }, function (reason) { - return 'default name'; - }).then(function (userName) { - // If `findUser` fulfilled, `userName` will be the user's name, otherwise it - // will be `'default name'` - }); - - findUser().then(function (user) { - throw new Error('Found user, but still unhappy'); - }, function (reason) { - throw new Error('`findUser` rejected and we\'re unhappy'); - }).then(function (value) { - // never reached - }, function (reason) { - // if `findUser` fulfilled, `reason` will be 'Found user, but still unhappy'. - // If `findUser` rejected, `reason` will be '`findUser` rejected and we\'re unhappy'. - }); - ``` - If the downstream promise does not specify a rejection handler, rejection reasons will be propagated further downstream. - - ```js - findUser().then(function (user) { - throw new PedagogicalException('Upstream error'); - }).then(function (value) { - // never reached - }).then(function (value) { - // never reached - }, function (reason) { - // The `PedgagocialException` is propagated all the way down to here - }); - ``` - - Assimilation - ------------ - - Sometimes the value you want to propagate to a downstream promise can only be - retrieved asynchronously. This can be achieved by returning a promise in the - fulfillment or rejection handler. The downstream promise will then be pending - until the returned promise is settled. This is called *assimilation*. - - ```js - findUser().then(function (user) { - return findCommentsByAuthor(user); - }).then(function (comments) { - // The user's comments are now available - }); - ``` - - If the assimliated promise rejects, then the downstream promise will also reject. - - ```js - findUser().then(function (user) { - return findCommentsByAuthor(user); - }).then(function (comments) { - // If `findCommentsByAuthor` fulfills, we'll have the value here - }, function (reason) { - // If `findCommentsByAuthor` rejects, we'll have the reason here - }); - ``` - - Simple Example - -------------- - - Synchronous Example - - ```javascript - let result; - - try { - result = findResult(); - // success - } catch(reason) { - // failure - } - ``` - - Errback Example - - ```js - findResult(function(result, err){ - if (err) { - // failure - } else { - // success - } - }); - ``` - - Promise Example; - - ```javascript - findResult().then(function(result){ - // success - }, function(reason){ - // failure - }); - ``` - - Advanced Example - -------------- - - Synchronous Example - - ```javascript - let author, books; - - try { - author = findAuthor(); - books = findBooksByAuthor(author); - // success - } catch(reason) { - // failure - } - ``` - - Errback Example - - ```js - - function foundBooks(books) { - - } - - function failure(reason) { - - } - - findAuthor(function(author, err){ - if (err) { - failure(err); - // failure - } else { - try { - findBoooksByAuthor(author, function(books, err) { - if (err) { - failure(err); - } else { - try { - foundBooks(books); - } catch(reason) { - failure(reason); - } - } - }); - } catch(error) { - failure(err); - } - // success - } - }); - ``` - - Promise Example; - - ```javascript - findAuthor(). - then(findBooksByAuthor). - then(function(books){ - // found books - }).catch(function(reason){ - // something went wrong - }); - ``` - - @method then - @param {Function} onFulfillment - @param {Function} onRejection - @param {String} label optional string for labeling the promise. - Useful for tooling. - @return {Promise} - */ - then: then, - - /** - `catch` is simply sugar for `then(undefined, onRejection)` which makes it the same - as the catch block of a try/catch statement. - - ```js - function findAuthor(){ - throw new Error('couldn\'t find that author'); - } - - // synchronous - try { - findAuthor(); - } catch(reason) { - // something went wrong - } - - // async with promises - findAuthor().catch(function(reason){ - // something went wrong - }); - ``` - - @method catch - @param {Function} onRejection - @param {String} label optional string for labeling the promise. - Useful for tooling. - @return {Promise} - */ - 'catch': function _catch(onRejection, label) { - return this.then(undefined, onRejection, label); - }, - - /** - `finally` will be invoked regardless of the promise's fate just as native - try/catch/finally behaves - - Synchronous example: - - ```js - findAuthor() { - if (Math.random() > 0.5) { - throw new Error(); - } - return new Author(); - } - - try { - return findAuthor(); // succeed or fail - } catch(error) { - return findOtherAuthor(); - } finally { - // always runs - // doesn't affect the return value - } - ``` - - Asynchronous example: - - ```js - findAuthor().catch(function(reason){ - return findOtherAuthor(); - }).finally(function(){ - // author was either found, or not - }); - ``` - - @method finally - @param {Function} callback - @param {String} label optional string for labeling the promise. - Useful for tooling. - @return {Promise} - */ - 'finally': function _finally(callback, label) { - var promise = this; - var constructor = promise.constructor; - - return promise.then(function (value) { - return constructor.resolve(callback()).then(function () { - return value; - }); - }, function (reason) { - return constructor.resolve(callback()).then(function () { - throw reason; - }); - }, label); - } -}; - -function Result() { - this.value = undefined; -} - -var ERROR = new Result(); -var GET_THEN_ERROR$1 = new Result(); - -function getThen$1(obj) { - try { - return obj.then; - } catch (error) { - ERROR.value = error; - return ERROR; - } -} - -function tryApply(f, s, a) { - try { - f.apply(s, a); - } catch (error) { - ERROR.value = error; - return ERROR; - } -} - -function makeObject(_, argumentNames) { - var obj = {}; - var length = _.length; - var args = new Array(length); - - for (var x = 0; x < length; x++) { - args[x] = _[x]; - } - - for (var i = 0; i < argumentNames.length; i++) { - var _name = argumentNames[i]; - obj[_name] = args[i + 1]; - } - - return obj; -} - -function arrayResult(_) { - var length = _.length; - var args = new Array(length - 1); - - for (var i = 1; i < length; i++) { - args[i - 1] = _[i]; - } - - return args; -} - -function wrapThenable(_then, promise) { - return { - then: function then(onFulFillment, onRejection) { - return _then.call(promise, onFulFillment, onRejection); - } - }; -} - -/** - `RSVP.denodeify` takes a 'node-style' function and returns a function that - will return an `RSVP.Promise`. You can use `denodeify` in Node.js or the - browser when you'd prefer to use promises over using callbacks. For example, - `denodeify` transforms the following: - - ```javascript - let fs = require('fs'); - - fs.readFile('myfile.txt', function(err, data){ - if (err) return handleError(err); - handleData(data); - }); - ``` - - into: - - ```javascript - let fs = require('fs'); - let readFile = RSVP.denodeify(fs.readFile); - - readFile('myfile.txt').then(handleData, handleError); - ``` - - If the node function has multiple success parameters, then `denodeify` - just returns the first one: - - ```javascript - let request = RSVP.denodeify(require('request')); - - request('http://example.com').then(function(res) { - // ... - }); - ``` - - However, if you need all success parameters, setting `denodeify`'s - second parameter to `true` causes it to return all success parameters - as an array: - - ```javascript - let request = RSVP.denodeify(require('request'), true); - - request('http://example.com').then(function(result) { - // result[0] -> res - // result[1] -> body - }); - ``` - - Or if you pass it an array with names it returns the parameters as a hash: - - ```javascript - let request = RSVP.denodeify(require('request'), ['res', 'body']); - - request('http://example.com').then(function(result) { - // result.res - // result.body - }); - ``` - - Sometimes you need to retain the `this`: - - ```javascript - let app = require('express')(); - let render = RSVP.denodeify(app.render.bind(app)); - ``` - - The denodified function inherits from the original function. It works in all - environments, except IE 10 and below. Consequently all properties of the original - function are available to you. However, any properties you change on the - denodeified function won't be changed on the original function. Example: - - ```javascript - let request = RSVP.denodeify(require('request')), - cookieJar = request.jar(); // <- Inheritance is used here - - request('http://example.com', {jar: cookieJar}).then(function(res) { - // cookieJar.cookies holds now the cookies returned by example.com - }); - ``` - - Using `denodeify` makes it easier to compose asynchronous operations instead - of using callbacks. For example, instead of: - - ```javascript - let fs = require('fs'); - - fs.readFile('myfile.txt', function(err, data){ - if (err) { ... } // Handle error - fs.writeFile('myfile2.txt', data, function(err){ - if (err) { ... } // Handle error - console.log('done') - }); - }); - ``` - - you can chain the operations together using `then` from the returned promise: - - ```javascript - let fs = require('fs'); - let readFile = RSVP.denodeify(fs.readFile); - let writeFile = RSVP.denodeify(fs.writeFile); - - readFile('myfile.txt').then(function(data){ - return writeFile('myfile2.txt', data); - }).then(function(){ - console.log('done') - }).catch(function(error){ - // Handle error - }); - ``` - - @method denodeify - @static - @for RSVP - @param {Function} nodeFunc a 'node-style' function that takes a callback as - its last argument. The callback expects an error to be passed as its first - argument (if an error occurred, otherwise null), and the value from the - operation as its second argument ('function(err, value){ }'). - @param {Boolean|Array} [options] An optional paramter that if set - to `true` causes the promise to fulfill with the callback's success arguments - as an array. This is useful if the node function has multiple success - paramters. If you set this paramter to an array with names, the promise will - fulfill with a hash with these names as keys and the success parameters as - values. - @return {Function} a function that wraps `nodeFunc` to return an - `RSVP.Promise` - @static -*/ -function denodeify$1(nodeFunc, options) { - var fn = function fn() { - var self = this; - var l = arguments.length; - var args = new Array(l + 1); - var promiseInput = false; - - for (var i = 0; i < l; ++i) { - var arg = arguments[i]; - - if (!promiseInput) { - // TODO: clean this up - promiseInput = needsPromiseInput(arg); - if (promiseInput === GET_THEN_ERROR$1) { - var p = new Promise$1(noop); - reject(p, GET_THEN_ERROR$1.value); - return p; - } else if (promiseInput && promiseInput !== true) { - arg = wrapThenable(promiseInput, arg); - } - } - args[i] = arg; - } - - var promise = new Promise$1(noop); - - args[l] = function (err, val) { - if (err) reject(promise, err);else if (options === undefined) resolve(promise, val);else if (options === true) resolve(promise, arrayResult(arguments));else if (isArray(options)) resolve(promise, makeObject(arguments, options));else resolve(promise, val); - }; - - if (promiseInput) { - return handlePromiseInput(promise, args, nodeFunc, self); - } else { - return handleValueInput(promise, args, nodeFunc, self); - } - }; - - fn.__proto__ = nodeFunc; - - return fn; -} - -function handleValueInput(promise, args, nodeFunc, self) { - var result = tryApply(nodeFunc, self, args); - if (result === ERROR) { - reject(promise, result.value); - } - return promise; -} - -function handlePromiseInput(promise, args, nodeFunc, self) { - return Promise$1.all(args).then(function (args) { - var result = tryApply(nodeFunc, self, args); - if (result === ERROR) { - reject(promise, result.value); - } - return promise; - }); -} - -function needsPromiseInput(arg) { - if (arg && typeof arg === 'object') { - if (arg.constructor === Promise$1) { - return true; - } else { - return getThen$1(arg); - } - } else { - return false; - } -} - -/** - This is a convenient alias for `RSVP.Promise.all`. - - @method all - @static - @for RSVP - @param {Array} array Array of promises. - @param {String} label An optional label. This is useful - for tooling. -*/ -function all$3(array, label) { - return Promise$1.all(array, label); -} - -function AllSettled(Constructor, entries, label) { - this._superConstructor(Constructor, entries, false, /* don't abort on reject */label); -} - -AllSettled.prototype = o_create(Enumerator.prototype); -AllSettled.prototype._superConstructor = Enumerator; -AllSettled.prototype._makeResult = makeSettledResult; -AllSettled.prototype._validationError = function () { - return new Error('allSettled must be called with an array'); -}; - -/** - `RSVP.allSettled` is similar to `RSVP.all`, but instead of implementing - a fail-fast method, it waits until all the promises have returned and - shows you all the results. This is useful if you want to handle multiple - promises' failure states together as a set. - - Returns a promise that is fulfilled when all the given promises have been - settled. The return promise is fulfilled with an array of the states of - the promises passed into the `promises` array argument. - - Each state object will either indicate fulfillment or rejection, and - provide the corresponding value or reason. The states will take one of - the following formats: - - ```javascript - { state: 'fulfilled', value: value } - or - { state: 'rejected', reason: reason } - ``` - - Example: - - ```javascript - let promise1 = RSVP.Promise.resolve(1); - let promise2 = RSVP.Promise.reject(new Error('2')); - let promise3 = RSVP.Promise.reject(new Error('3')); - let promises = [ promise1, promise2, promise3 ]; - - RSVP.allSettled(promises).then(function(array){ - // array == [ - // { state: 'fulfilled', value: 1 }, - // { state: 'rejected', reason: Error }, - // { state: 'rejected', reason: Error } - // ] - // Note that for the second item, reason.message will be '2', and for the - // third item, reason.message will be '3'. - }, function(error) { - // Not run. (This block would only be called if allSettled had failed, - // for instance if passed an incorrect argument type.) - }); - ``` - - @method allSettled - @static - @for RSVP - @param {Array} entries - @param {String} label - optional string that describes the promise. - Useful for tooling. - @return {Promise} promise that is fulfilled with an array of the settled - states of the constituent promises. -*/ -function allSettled$1(entries, label) { - return new AllSettled(Promise$1, entries, label).promise; -} - -/** - This is a convenient alias for `RSVP.Promise.race`. - - @method race - @static - @for RSVP - @param {Array} array Array of promises. - @param {String} label An optional label. This is useful - for tooling. - */ -function race$3(array, label) { - return Promise$1.race(array, label); -} - -function PromiseHash(Constructor, object, label) { - this._superConstructor(Constructor, object, true, label); -} - -PromiseHash.prototype = o_create(Enumerator.prototype); -PromiseHash.prototype._superConstructor = Enumerator; -PromiseHash.prototype._init = function () { - this._result = {}; -}; - -PromiseHash.prototype._validateInput = function (input) { - return input && typeof input === 'object'; -}; - -PromiseHash.prototype._validationError = function () { - return new Error('Promise.hash must be called with an object'); -}; - -PromiseHash.prototype._enumerate = function () { - var enumerator = this; - var promise = enumerator.promise; - var input = enumerator._input; - var results = []; - - for (var key in input) { - if (promise._state === PENDING && Object.prototype.hasOwnProperty.call(input, key)) { - results.push({ - position: key, - entry: input[key] - }); - } - } - - var length = results.length; - enumerator._remaining = length; - var result = undefined; - - for (var i = 0; promise._state === PENDING && i < length; i++) { - result = results[i]; - enumerator._eachEntry(result.entry, result.position); - } -}; - -/** - `RSVP.hash` is similar to `RSVP.all`, but takes an object instead of an array - for its `promises` argument. - - Returns a promise that is fulfilled when all the given promises have been - fulfilled, or rejected if any of them become rejected. The returned promise - is fulfilled with a hash that has the same key names as the `promises` object - argument. If any of the values in the object are not promises, they will - simply be copied over to the fulfilled object. - - Example: - - ```javascript - let promises = { - myPromise: RSVP.resolve(1), - yourPromise: RSVP.resolve(2), - theirPromise: RSVP.resolve(3), - notAPromise: 4 - }; - - RSVP.hash(promises).then(function(hash){ - // hash here is an object that looks like: - // { - // myPromise: 1, - // yourPromise: 2, - // theirPromise: 3, - // notAPromise: 4 - // } - }); - ```` - - If any of the `promises` given to `RSVP.hash` are rejected, the first promise - that is rejected will be given as the reason to the rejection handler. - - Example: - - ```javascript - let promises = { - myPromise: RSVP.resolve(1), - rejectedPromise: RSVP.reject(new Error('rejectedPromise')), - anotherRejectedPromise: RSVP.reject(new Error('anotherRejectedPromise')), - }; - - RSVP.hash(promises).then(function(hash){ - // Code here never runs because there are rejected promises! - }, function(reason) { - // reason.message === 'rejectedPromise' - }); - ``` - - An important note: `RSVP.hash` is intended for plain JavaScript objects that - are just a set of keys and values. `RSVP.hash` will NOT preserve prototype - chains. - - Example: - - ```javascript - function MyConstructor(){ - this.example = RSVP.resolve('Example'); - } - - MyConstructor.prototype = { - protoProperty: RSVP.resolve('Proto Property') - }; - - let myObject = new MyConstructor(); - - RSVP.hash(myObject).then(function(hash){ - // protoProperty will not be present, instead you will just have an - // object that looks like: - // { - // example: 'Example' - // } - // - // hash.hasOwnProperty('protoProperty'); // false - // 'undefined' === typeof hash.protoProperty - }); - ``` - - @method hash - @static - @for RSVP - @param {Object} object - @param {String} label optional string that describes the promise. - Useful for tooling. - @return {Promise} promise that is fulfilled when all properties of `promises` - have been fulfilled, or rejected if any of them become rejected. -*/ -function hash$1(object, label) { - return new PromiseHash(Promise$1, object, label).promise; -} - -function HashSettled(Constructor, object, label) { - this._superConstructor(Constructor, object, false, label); -} - -HashSettled.prototype = o_create(PromiseHash.prototype); -HashSettled.prototype._superConstructor = Enumerator; -HashSettled.prototype._makeResult = makeSettledResult; - -HashSettled.prototype._validationError = function () { - return new Error('hashSettled must be called with an object'); -}; - -/** - `RSVP.hashSettled` is similar to `RSVP.allSettled`, but takes an object - instead of an array for its `promises` argument. - - Unlike `RSVP.all` or `RSVP.hash`, which implement a fail-fast method, - but like `RSVP.allSettled`, `hashSettled` waits until all the - constituent promises have returned and then shows you all the results - with their states and values/reasons. This is useful if you want to - handle multiple promises' failure states together as a set. - - Returns a promise that is fulfilled when all the given promises have been - settled, or rejected if the passed parameters are invalid. - - The returned promise is fulfilled with a hash that has the same key names as - the `promises` object argument. If any of the values in the object are not - promises, they will be copied over to the fulfilled object and marked with state - 'fulfilled'. - - Example: - - ```javascript - let promises = { - myPromise: RSVP.Promise.resolve(1), - yourPromise: RSVP.Promise.resolve(2), - theirPromise: RSVP.Promise.resolve(3), - notAPromise: 4 - }; - - RSVP.hashSettled(promises).then(function(hash){ - // hash here is an object that looks like: - // { - // myPromise: { state: 'fulfilled', value: 1 }, - // yourPromise: { state: 'fulfilled', value: 2 }, - // theirPromise: { state: 'fulfilled', value: 3 }, - // notAPromise: { state: 'fulfilled', value: 4 } - // } - }); - ``` - - If any of the `promises` given to `RSVP.hash` are rejected, the state will - be set to 'rejected' and the reason for rejection provided. - - Example: - - ```javascript - let promises = { - myPromise: RSVP.Promise.resolve(1), - rejectedPromise: RSVP.Promise.reject(new Error('rejection')), - anotherRejectedPromise: RSVP.Promise.reject(new Error('more rejection')), - }; - - RSVP.hashSettled(promises).then(function(hash){ - // hash here is an object that looks like: - // { - // myPromise: { state: 'fulfilled', value: 1 }, - // rejectedPromise: { state: 'rejected', reason: Error }, - // anotherRejectedPromise: { state: 'rejected', reason: Error }, - // } - // Note that for rejectedPromise, reason.message == 'rejection', - // and for anotherRejectedPromise, reason.message == 'more rejection'. - }); - ``` - - An important note: `RSVP.hashSettled` is intended for plain JavaScript objects that - are just a set of keys and values. `RSVP.hashSettled` will NOT preserve prototype - chains. - - Example: - - ```javascript - function MyConstructor(){ - this.example = RSVP.Promise.resolve('Example'); - } - - MyConstructor.prototype = { - protoProperty: RSVP.Promise.resolve('Proto Property') - }; - - let myObject = new MyConstructor(); - - RSVP.hashSettled(myObject).then(function(hash){ - // protoProperty will not be present, instead you will just have an - // object that looks like: - // { - // example: { state: 'fulfilled', value: 'Example' } - // } - // - // hash.hasOwnProperty('protoProperty'); // false - // 'undefined' === typeof hash.protoProperty - }); - ``` - - @method hashSettled - @for RSVP - @param {Object} object - @param {String} label optional string that describes the promise. - Useful for tooling. - @return {Promise} promise that is fulfilled when when all properties of `promises` - have been settled. - @static -*/ -function hashSettled$1(object, label) { - return new HashSettled(Promise$1, object, label).promise; -} - -/** - `RSVP.rethrow` will rethrow an error on the next turn of the JavaScript event - loop in order to aid debugging. - - Promises A+ specifies that any exceptions that occur with a promise must be - caught by the promises implementation and bubbled to the last handler. For - this reason, it is recommended that you always specify a second rejection - handler function to `then`. However, `RSVP.rethrow` will throw the exception - outside of the promise, so it bubbles up to your console if in the browser, - or domain/cause uncaught exception in Node. `rethrow` will also throw the - error again so the error can be handled by the promise per the spec. - - ```javascript - function throws(){ - throw new Error('Whoops!'); - } - - let promise = new RSVP.Promise(function(resolve, reject){ - throws(); - }); - - promise.catch(RSVP.rethrow).then(function(){ - // Code here doesn't run because the promise became rejected due to an - // error! - }, function (err){ - // handle the error here - }); - ``` - - The 'Whoops' error will be thrown on the next turn of the event loop - and you can watch for it in your console. You can also handle it using a - rejection handler given to `.then` or `.catch` on the returned promise. - - @method rethrow - @static - @for RSVP - @param {Error} reason reason the promise became rejected. - @throws Error - @static -*/ -function rethrow$1(reason) { - setTimeout(function () { - throw reason; - }); - throw reason; -} - -/** - `RSVP.defer` returns an object similar to jQuery's `$.Deferred`. - `RSVP.defer` should be used when porting over code reliant on `$.Deferred`'s - interface. New code should use the `RSVP.Promise` constructor instead. - - The object returned from `RSVP.defer` is a plain object with three properties: - - * promise - an `RSVP.Promise`. - * reject - a function that causes the `promise` property on this object to - become rejected - * resolve - a function that causes the `promise` property on this object to - become fulfilled. - - Example: - - ```javascript - let deferred = RSVP.defer(); - - deferred.resolve("Success!"); - - deferred.promise.then(function(value){ - // value here is "Success!" - }); - ``` - - @method defer - @static - @for RSVP - @param {String} label optional string for labeling the promise. - Useful for tooling. - @return {Object} - */ -function defer$1(label) { - var deferred = { resolve: undefined, reject: undefined }; - - deferred.promise = new Promise$1(function (resolve, reject) { - deferred.resolve = resolve; - deferred.reject = reject; - }, label); - - return deferred; -} - -/** - `RSVP.map` is similar to JavaScript's native `map` method, except that it - waits for all promises to become fulfilled before running the `mapFn` on - each item in given to `promises`. `RSVP.map` returns a promise that will - become fulfilled with the result of running `mapFn` on the values the promises - become fulfilled with. - - For example: - - ```javascript - - let promise1 = RSVP.resolve(1); - let promise2 = RSVP.resolve(2); - let promise3 = RSVP.resolve(3); - let promises = [ promise1, promise2, promise3 ]; - - let mapFn = function(item){ - return item + 1; - }; - - RSVP.map(promises, mapFn).then(function(result){ - // result is [ 2, 3, 4 ] - }); - ``` - - If any of the `promises` given to `RSVP.map` are rejected, the first promise - that is rejected will be given as an argument to the returned promise's - rejection handler. For example: - - ```javascript - let promise1 = RSVP.resolve(1); - let promise2 = RSVP.reject(new Error('2')); - let promise3 = RSVP.reject(new Error('3')); - let promises = [ promise1, promise2, promise3 ]; - - let mapFn = function(item){ - return item + 1; - }; - - RSVP.map(promises, mapFn).then(function(array){ - // Code here never runs because there are rejected promises! - }, function(reason) { - // reason.message === '2' - }); - ``` - - `RSVP.map` will also wait if a promise is returned from `mapFn`. For example, - say you want to get all comments from a set of blog posts, but you need - the blog posts first because they contain a url to those comments. - - ```javscript - - let mapFn = function(blogPost){ - // getComments does some ajax and returns an RSVP.Promise that is fulfilled - // with some comments data - return getComments(blogPost.comments_url); - }; - - // getBlogPosts does some ajax and returns an RSVP.Promise that is fulfilled - // with some blog post data - RSVP.map(getBlogPosts(), mapFn).then(function(comments){ - // comments is the result of asking the server for the comments - // of all blog posts returned from getBlogPosts() - }); - ``` - - @method map - @static - @for RSVP - @param {Array} promises - @param {Function} mapFn function to be called on each fulfilled promise. - @param {String} label optional string for labeling the promise. - Useful for tooling. - @return {Promise} promise that is fulfilled with the result of calling - `mapFn` on each fulfilled promise or value when they become fulfilled. - The promise will be rejected if any of the given `promises` become rejected. - @static -*/ -function map$1(promises, mapFn, label) { - return Promise$1.all(promises, label).then(function (values) { - if (!isFunction(mapFn)) { - throw new TypeError("You must pass a function as map's second argument."); - } - - var length = values.length; - var results = new Array(length); - - for (var i = 0; i < length; i++) { - results[i] = mapFn(values[i]); - } - - return Promise$1.all(results, label); - }); -} - -/** - This is a convenient alias for `RSVP.Promise.resolve`. - - @method resolve - @static - @for RSVP - @param {*} value value that the returned promise will be resolved with - @param {String} label optional string for identifying the returned promise. - Useful for tooling. - @return {Promise} a promise that will become fulfilled with the given - `value` -*/ -function resolve$3(value, label) { - return Promise$1.resolve(value, label); -} - -/** - This is a convenient alias for `RSVP.Promise.reject`. - - @method reject - @static - @for RSVP - @param {*} reason value that the returned promise will be rejected with. - @param {String} label optional string for identifying the returned promise. - Useful for tooling. - @return {Promise} a promise rejected with the given `reason`. -*/ -function reject$3(reason, label) { - return Promise$1.reject(reason, label); -} - -/** - `RSVP.filter` is similar to JavaScript's native `filter` method, except that it - waits for all promises to become fulfilled before running the `filterFn` on - each item in given to `promises`. `RSVP.filter` returns a promise that will - become fulfilled with the result of running `filterFn` on the values the - promises become fulfilled with. - - For example: - - ```javascript - - let promise1 = RSVP.resolve(1); - let promise2 = RSVP.resolve(2); - let promise3 = RSVP.resolve(3); - - let promises = [promise1, promise2, promise3]; - - let filterFn = function(item){ - return item > 1; - }; - - RSVP.filter(promises, filterFn).then(function(result){ - // result is [ 2, 3 ] - }); - ``` - - If any of the `promises` given to `RSVP.filter` are rejected, the first promise - that is rejected will be given as an argument to the returned promise's - rejection handler. For example: - - ```javascript - let promise1 = RSVP.resolve(1); - let promise2 = RSVP.reject(new Error('2')); - let promise3 = RSVP.reject(new Error('3')); - let promises = [ promise1, promise2, promise3 ]; - - let filterFn = function(item){ - return item > 1; - }; - - RSVP.filter(promises, filterFn).then(function(array){ - // Code here never runs because there are rejected promises! - }, function(reason) { - // reason.message === '2' - }); - ``` - - `RSVP.filter` will also wait for any promises returned from `filterFn`. - For instance, you may want to fetch a list of users then return a subset - of those users based on some asynchronous operation: - - ```javascript - - let alice = { name: 'alice' }; - let bob = { name: 'bob' }; - let users = [ alice, bob ]; - - let promises = users.map(function(user){ - return RSVP.resolve(user); - }); - - let filterFn = function(user){ - // Here, Alice has permissions to create a blog post, but Bob does not. - return getPrivilegesForUser(user).then(function(privs){ - return privs.can_create_blog_post === true; - }); - }; - RSVP.filter(promises, filterFn).then(function(users){ - // true, because the server told us only Alice can create a blog post. - users.length === 1; - // false, because Alice is the only user present in `users` - users[0] === bob; - }); - ``` - - @method filter - @static - @for RSVP - @param {Array} promises - @param {Function} filterFn - function to be called on each resolved value to - filter the final results. - @param {String} label optional string describing the promise. Useful for - tooling. - @return {Promise} -*/ - -function resolveAll(promises, label) { - return Promise$1.all(promises, label); -} - -function resolveSingle(promise, label) { - return Promise$1.resolve(promise, label).then(function (promises) { - return resolveAll(promises, label); - }); -} -function filter$1(promises, filterFn, label) { - var promise = isArray(promises) ? resolveAll(promises, label) : resolveSingle(promises, label); - return promise.then(function (values) { - if (!isFunction(filterFn)) { - throw new TypeError("You must pass a function as filter's second argument."); - } - - var length = values.length; - var filtered = new Array(length); - - for (var i = 0; i < length; i++) { - filtered[i] = filterFn(values[i]); - } - - return resolveAll(filtered, label).then(function (filtered) { - var results = new Array(length); - var newLength = 0; - - for (var i = 0; i < length; i++) { - if (filtered[i]) { - results[newLength] = values[i]; - newLength++; - } - } - - results.length = newLength; - - return results; - }); - }); -} - -var len = 0; -var vertxNext = undefined; -function asap$1(callback, arg) { - queue$1[len] = callback; - queue$1[len + 1] = arg; - len += 2; - if (len === 2) { - // If len is 1, that means that we need to schedule an async flush. - // If additional callbacks are queued before the queue is flushed, they - // will be processed by this flush that we are scheduling. - scheduleFlush$1(); - } -} - -var browserWindow = typeof window !== 'undefined' ? window : undefined; -var browserGlobal = browserWindow || {}; -var BrowserMutationObserver = browserGlobal.MutationObserver || browserGlobal.WebKitMutationObserver; -var isNode = typeof self === 'undefined' && typeof process !== 'undefined' && ({}).toString.call(process) === '[object process]'; - -// test for web worker but not in IE10 -var isWorker = typeof Uint8ClampedArray !== 'undefined' && typeof importScripts !== 'undefined' && typeof MessageChannel !== 'undefined'; - -// node -function useNextTick() { - var nextTick = process.nextTick; - // node version 0.10.x displays a deprecation warning when nextTick is used recursively - // setImmediate should be used instead instead - var version = process.versions.node.match(/^(?:(\d+)\.)?(?:(\d+)\.)?(\*|\d+)$/); - if (Array.isArray(version) && version[1] === '0' && version[2] === '10') { - nextTick = setImmediate; - } - return function () { - return nextTick(flush); - }; -} - -// vertx -function useVertxTimer() { - if (typeof vertxNext !== 'undefined') { - return function () { - vertxNext(flush); - }; - } - return useSetTimeout(); -} - -function useMutationObserver() { - var iterations = 0; - var observer = new BrowserMutationObserver(flush); - var node = document.createTextNode(''); - observer.observe(node, { characterData: true }); - - return function () { - return node.data = iterations = ++iterations % 2; - }; -} - -// web worker -function useMessageChannel() { - var channel = new MessageChannel(); - channel.port1.onmessage = flush; - return function () { - return channel.port2.postMessage(0); - }; -} - -function useSetTimeout() { - return function () { - return setTimeout(flush, 1); - }; -} - -var queue$1 = new Array(1000); - -function flush() { - for (var i = 0; i < len; i += 2) { - var callback = queue$1[i]; - var arg = queue$1[i + 1]; - - callback(arg); - - queue$1[i] = undefined; - queue$1[i + 1] = undefined; - } - - len = 0; -} - -function attemptVertex() { - try { - var r = require; - var vertx = r('vertx'); - vertxNext = vertx.runOnLoop || vertx.runOnContext; - return useVertxTimer(); - } catch (e) { - return useSetTimeout(); - } -} - -var scheduleFlush$1 = undefined; -// Decide what async method to use to triggering processing of queued callbacks: -if (isNode) { - scheduleFlush$1 = useNextTick(); -} else if (BrowserMutationObserver) { - scheduleFlush$1 = useMutationObserver(); -} else if (isWorker) { - scheduleFlush$1 = useMessageChannel(); -} else if (browserWindow === undefined && typeof require === 'function') { - scheduleFlush$1 = attemptVertex(); -} else { - scheduleFlush$1 = useSetTimeout(); -} - -var platform = undefined; - -/* global self */ -if (typeof self === 'object') { - platform = self; - - /* global global */ -} else if (typeof global === 'object') { - platform = global; - } else { - throw new Error('no global: `self` or `global` found'); - } - -var _async$filter; - -function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } - -// defaults - -// the default export here is for backwards compat: -// https://github.com/tildeio/rsvp.js/issues/434 -config.async = asap$1; -config.after = function (cb) { - return setTimeout(cb, 0); -}; -var cast = resolve$3; - -var async = function async(callback, arg) { - return config.async(callback, arg); -}; - -function on() { - config['on'].apply(config, arguments); -} - -function off() { - config['off'].apply(config, arguments); -} - -// Set up instrumentation through `window.__PROMISE_INTRUMENTATION__` -if (typeof window !== 'undefined' && typeof window['__PROMISE_INSTRUMENTATION__'] === 'object') { - var callbacks = window['__PROMISE_INSTRUMENTATION__']; - configure('instrument', true); - for (var eventName in callbacks) { - if (callbacks.hasOwnProperty(eventName)) { - on(eventName, callbacks[eventName]); - } - } -}var rsvp = (_async$filter = { - asap: asap$1, - cast: cast, - Promise: Promise$1, - EventTarget: EventTarget, - all: all$3, - allSettled: allSettled$1, - race: race$3, - hash: hash$1, - hashSettled: hashSettled$1, - rethrow: rethrow$1, - defer: defer$1, - denodeify: denodeify$1, - configure: configure, - on: on, - off: off, - resolve: resolve$3, - reject: reject$3, - map: map$1 -}, _defineProperty(_async$filter, 'async', async), _defineProperty(_async$filter, 'filter', // babel seems to error if async isn't a computed prop here... -filter$1), _async$filter); - -exports['default'] = rsvp; -exports.asap = asap$1; -exports.cast = cast; -exports.Promise = Promise$1; -exports.EventTarget = EventTarget; -exports.all = all$3; -exports.allSettled = allSettled$1; -exports.race = race$3; -exports.hash = hash$1; -exports.hashSettled = hashSettled$1; -exports.rethrow = rethrow$1; -exports.defer = defer$1; -exports.denodeify = denodeify$1; -exports.configure = configure; -exports.on = on; -exports.off = off; -exports.resolve = resolve$3; -exports.reject = reject$3; -exports.map = map$1; -exports.async = async; -exports.filter = filter$1; - -Object.defineProperty(exports, '__esModule', { value: true }); - -}))); - -// - -'use strict'; - -var EPUBJS = EPUBJS || {}; -EPUBJS.VERSION = "0.2.19"; - -EPUBJS.plugins = EPUBJS.plugins || {}; - -EPUBJS.filePath = EPUBJS.filePath || "/epubjs/"; - -EPUBJS.Render = {}; - -(function(root) { - - var previousEpub = root.ePub || {}; - - var ePub = root.ePub = function() { - var bookPath, options; - - //-- var book = ePub("path/to/book.epub", { restore: true }) - if(typeof(arguments[0]) != 'undefined' && - (typeof arguments[0] === 'string' || arguments[0] instanceof ArrayBuffer)) { - - bookPath = arguments[0]; - - if( arguments[1] && typeof arguments[1] === 'object' ) { - options = arguments[1]; - options.bookPath = bookPath; - } else { - options = { 'bookPath' : bookPath }; - } - - } - - /* - * var book = ePub({ bookPath: "path/to/book.epub", restore: true }); - * - * - OR - - * - * var book = ePub({ restore: true }); - * book.open("path/to/book.epub"); - */ - - if( arguments[0] && typeof arguments[0] === 'object' && !(arguments[0] instanceof ArrayBuffer)) { - options = arguments[0]; - } - - - return new EPUBJS.Book(options); - }; - - //exports to multiple environments - if (typeof define === 'function' && define.amd) { - //AMD - define(['rsvp', 'jszip', 'localforage'], function(RSVP, JSZip, localForage){ return ePub; }); - } else if (typeof module != "undefined" && module.exports) { - //Node - global.RSVP = require('rsvp'); - global.JSZip = require('jszip'); - global.localForage = require('localforage'); - module.exports = ePub; - } - -})(window); - -EPUBJS.Book = function(options){ - - var book = this; - - this.settings = EPUBJS.core.defaults(options || {}, { - bookPath : undefined, - bookKey : undefined, - packageUrl : undefined, - storage: false, //-- true (auto) or false (none) | override: 'ram', 'websqldatabase', 'indexeddb', 'filesystem' - fromStorage : false, - saved : false, - online : true, - contained : false, - width : undefined, - height: undefined, - layoutOveride : undefined, // Default: { spread: 'reflowable', layout: 'auto', orientation: 'auto'} - orientation : undefined, - minSpreadWidth: 768, //-- overridden by spread: none (never) / both (always) - gap: "auto", //-- "auto" or int - version: 1, - restore: false, - reload : false, - goto : false, - styles : {}, - classes : [], - headTags : {}, - withCredentials: false, - render_method: "Iframe", - displayLastPage: false - }); - - this.settings.EPUBJSVERSION = EPUBJS.VERSION; - - this.spinePos = 0; - this.stored = false; - - //-- All Book events for listening - /* - book:ready - book:stored - book:online - book:offline - book:pageChanged - book:loadFailed - book:loadChapterFailed - */ - - //-- Adds Hook methods to the Book prototype - // Hooks will all return before triggering the callback. - // EPUBJS.Hooks.mixin(this); - //-- Get pre-registered hooks for events - // this.getHooks("beforeChapterDisplay"); - - this.online = this.settings.online || navigator.onLine; - this.networkListeners(); - - this.ready = { - manifest: new RSVP.defer(), - spine: new RSVP.defer(), - metadata: new RSVP.defer(), - cover: new RSVP.defer(), - toc: new RSVP.defer(), - pageList: new RSVP.defer() - }; - - this.readyPromises = [ - this.ready.manifest.promise, - this.ready.spine.promise, - this.ready.metadata.promise, - this.ready.cover.promise, - this.ready.toc.promise - ]; - - this.pageList = []; - this.pagination = new EPUBJS.Pagination(); - this.pageListReady = this.ready.pageList.promise; - - this.ready.all = RSVP.all(this.readyPromises); - - this.ready.all.then(this._ready.bind(this)); - - // Queue for methods used before rendering - this.isRendered = false; - this._q = EPUBJS.core.queue(this); - // Queue for rendering - this._rendering = false; - this._displayQ = EPUBJS.core.queue(this); - // Queue for going to another location - this._moving = false; - this._gotoQ = EPUBJS.core.queue(this); - - /** - * Creates a new renderer. - * The renderer will handle displaying the content using the method provided in the settings - */ - this.renderer = new EPUBJS.Renderer(this.settings.render_method); - //-- Set the width at which to switch from spreads to single pages - this.renderer.setMinSpreadWidth(this.settings.minSpreadWidth); - this.renderer.setGap(this.settings.gap); - //-- Pass through the renderer events - this.listenToRenderer(this.renderer); - - this.defer_opened = new RSVP.defer(); - this.opened = this.defer_opened.promise; - - this.store = false; //-- False if not using storage; - - //-- Determine storage method - //-- Override options: none | ram | websqldatabase | indexeddb | filesystem - if(this.settings.storage !== false){ - // this.storage = new fileStorage.storage(this.settings.storage); - this.fromStorage(true); - } - - // BookUrl is optional, but if present start loading process - if(typeof this.settings.bookPath === 'string' || this.settings.bookPath instanceof ArrayBuffer) { - this.open(this.settings.bookPath, this.settings.reload); - } - - window.addEventListener("beforeunload", this.unload.bind(this), false); - - //-- Listen for these promises: - //-- book.opened.then() - //-- book.rendered.then() -}; - -//-- Check bookUrl and start parsing book Assets or load them from storage -EPUBJS.Book.prototype.open = function(bookPath, forceReload){ - var book = this, - epubpackage, - opened = new RSVP.defer(); - - this.settings.bookPath = bookPath; - - if(this.settings.contained || this.isContained(bookPath)){ - - this.settings.contained = this.contained = true; - - this.bookUrl = ''; - - epubpackage = this.unarchive(bookPath). - then(function(){ - return book.loadPackage(); - }); - - } else { - //-- Get a absolute URL from the book path - this.bookUrl = this.urlFrom(bookPath); - - epubpackage = this.loadPackage(); - } - - if(this.settings.restore && !forceReload && localStorage){ - //-- Will load previous package json, or re-unpack if error - epubpackage.then(function(packageXml) { - var identifier = book.packageIdentifier(packageXml); - var restored = book.restore(identifier); - - if(!restored) { - book.unpack(packageXml); - } - opened.resolve(); - book.defer_opened.resolve(); - }); - - }else{ - - //-- Get package information from epub opf - epubpackage.then(function(packageXml) { - book.unpack(packageXml); - opened.resolve(); - book.defer_opened.resolve(); - }); - } - - this._registerReplacements(this.renderer); - - return opened.promise; - -}; - -EPUBJS.Book.prototype.loadPackage = function(_containerPath){ - var book = this, - parse = new EPUBJS.Parser(), - containerPath = _containerPath || "META-INF/container.xml", - containerXml, - packageXml; - - if(!this.settings.packageUrl) { //-- provide the packageUrl to skip this step - packageXml = book.loadXml(book.bookUrl + containerPath). - then(function(containerXml){ - return parse.container(containerXml); // Container has path to content - }). - then(function(paths){ - book.settings.contentsPath = book.bookUrl + paths.basePath; - book.settings.packageUrl = book.bookUrl + paths.packagePath; - book.settings.encoding = paths.encoding; - return book.loadXml(book.settings.packageUrl); // Containes manifest, spine and metadata - }); - } else { - packageXml = book.loadXml(book.settings.packageUrl); - } - - packageXml.catch(function(error) { - // handle errors in either of the two requests - console.error("Could not load book at: "+ containerPath); - book.trigger("book:loadFailed", containerPath); - }); - return packageXml; -}; - -EPUBJS.Book.prototype.packageIdentifier = function(packageXml){ - var book = this, - parse = new EPUBJS.Parser(); - - return parse.identifier(packageXml); -}; - -EPUBJS.Book.prototype.unpack = function(packageXml){ - var book = this, - parse = new EPUBJS.Parser(); - - book.contents = parse.packageContents(packageXml, book.settings.contentsPath); // Extract info from contents - - book.manifest = book.contents.manifest; - book.spine = book.contents.spine; - book.spineIndexByURL = book.contents.spineIndexByURL; - book.metadata = book.contents.metadata; - if(!book.settings.bookKey) { - book.settings.bookKey = book.generateBookKey(book.metadata.identifier); - } - - //-- Set Globbal Layout setting based on metadata - book.globalLayoutProperties = book.parseLayoutProperties(book.metadata); - - if(book.contents.coverPath) { - book.cover = book.contents.cover = book.settings.contentsPath + book.contents.coverPath; - } - - book.spineNodeIndex = book.contents.spineNodeIndex; - - book.ready.manifest.resolve(book.contents.manifest); - book.ready.spine.resolve(book.contents.spine); - book.ready.metadata.resolve(book.contents.metadata); - book.ready.cover.resolve(book.contents.cover); - - book.locations = new EPUBJS.Locations(book.spine, book.store, book.settings.withCredentials); - - //-- Load the TOC, optional; either the EPUB3 XHTML Navigation file or the EPUB2 NCX file - if(book.contents.navPath) { - book.settings.navUrl = book.settings.contentsPath + book.contents.navPath; - - book.loadXml(book.settings.navUrl). - then(function(navHtml){ - return parse.nav(navHtml, book.spineIndexByURL, book.spine); // Grab Table of Contents - }).then(function(toc){ - book.toc = book.contents.toc = toc; - book.ready.toc.resolve(book.contents.toc); - }, function(error) { - book.ready.toc.resolve(false); - }); - - // Load the optional pageList - book.loadXml(book.settings.navUrl). - then(function(navHtml){ - return parse.pageList(navHtml, book.spineIndexByURL, book.spine); - }).then(function(pageList){ - var epubcfi = new EPUBJS.EpubCFI(); - var wait = 0; // need to generate a cfi - - // No pageList found - if(pageList.length === 0) { - return; - } - - book.pageList = book.contents.pageList = pageList; - - // Replace HREFs with CFI - book.pageList.forEach(function(pg){ - if(!pg.cfi) { - wait += 1; - epubcfi.generateCfiFromHref(pg.href, book).then(function(cfi){ - pg.cfi = cfi; - pg.packageUrl = book.settings.packageUrl; - - wait -= 1; - if(wait === 0) { - book.pagination.process(book.pageList); - book.ready.pageList.resolve(book.pageList); - } - }); - } - }); - - if(!wait) { - book.pagination.process(book.pageList); - book.ready.pageList.resolve(book.pageList); - } - - }, function(error) { - book.ready.pageList.resolve([]); - }); - } else if(book.contents.tocPath) { - book.settings.tocUrl = book.settings.contentsPath + book.contents.tocPath; - - book.loadXml(book.settings.tocUrl). - then(function(tocXml){ - return parse.toc(tocXml, book.spineIndexByURL, book.spine); // Grab Table of Contents - }, function(err) { - console.error(err); - }).then(function(toc){ - book.toc = book.contents.toc = toc; - book.ready.toc.resolve(book.contents.toc); - }, function(error) { - book.ready.toc.resolve(false); - }); - - } else { - book.ready.toc.resolve(false); - } - -}; - -EPUBJS.Book.prototype.createHiddenRender = function(renderer, _width, _height) { - var box = this.element.getBoundingClientRect(); - var width = _width || this.settings.width || box.width; - var height = _height || this.settings.height || box.height; - var hiddenContainer; - var hiddenEl; - renderer.setMinSpreadWidth(this.settings.minSpreadWidth); - renderer.setGap(this.settings.gap); - - this._registerReplacements(renderer); - if(this.settings.forceSingle) { - renderer.forceSingle(true); - } - - hiddenContainer = document.createElement("div"); - hiddenContainer.style.visibility = "hidden"; - hiddenContainer.style.overflow = "hidden"; - hiddenContainer.style.width = "0"; - hiddenContainer.style.height = "0"; - this.element.appendChild(hiddenContainer); - - hiddenEl = document.createElement("div"); - hiddenEl.style.visibility = "hidden"; - hiddenEl.style.overflow = "hidden"; - hiddenEl.style.width = width + "px";//"0"; - hiddenEl.style.height = height +"px"; //"0"; - hiddenContainer.appendChild(hiddenEl); - - renderer.initialize(hiddenEl, this.settings.width, this.settings.height); - return hiddenContainer; -}; - -// Generates the pageList array by loading every chapter and paging through them -EPUBJS.Book.prototype.generatePageList = function(width, height, flag){ - var pageList = []; - var pager = new EPUBJS.Renderer(this.settings.render_method, false); //hidden - var hiddenContainer = this.createHiddenRender(pager, width, height); - var deferred = new RSVP.defer(); - var spinePos = -1; - var spineLength = this.spine.length; - var totalPages = 0; - var currentPage = 0; - var nextChapter = function(deferred){ - var chapter; - var next = spinePos + 1; - var done = deferred || new RSVP.defer(); - var loaded; - if(next >= spineLength) { - done.resolve(); - } else { - if (flag && flag.cancelled) { - pager.remove(); - this.element.removeChild(hiddenContainer); - done.reject(new Error("User cancelled")); - return; - } - - spinePos = next; - chapter = new EPUBJS.Chapter(this.spine[spinePos], this.store); - pager.displayChapter(chapter, this.globalLayoutProperties).then(function(chap){ - pager.pageMap.forEach(function(item){ - currentPage += 1; - pageList.push({ - "cfi" : item.start, - "page" : currentPage - }); - - }); - - if(pager.pageMap.length % 2 > 0 && - pager.spreads) { - currentPage += 1; // Handle Spreads - pageList.push({ - "cfi" : pager.pageMap[pager.pageMap.length - 1].end, - "page" : currentPage - }); - } - - // Load up the next chapter - setTimeout(function(){ - nextChapter(done); - }, 1); - }); - } - return done.promise; - }.bind(this); - - var finished = nextChapter().then(function(){ - pager.remove(); - this.element.removeChild(hiddenContainer); - deferred.resolve(pageList); - }.bind(this), function(reason) { - deferred.reject(reason); - }); - - return deferred.promise; -}; - -// Render out entire book and generate the pagination -// Width and Height are optional and will default to the current dimensions -EPUBJS.Book.prototype.generatePagination = function(width, height, flag) { - var book = this; - var defered = new RSVP.defer(); - - this.ready.spine.promise.then(function(){ - book.generatePageList(width, height, flag).then(function(pageList){ - book.pageList = book.contents.pageList = pageList; - book.pagination.process(pageList); - book.ready.pageList.resolve(book.pageList); - defered.resolve(book.pageList); - }, function(reason) { - defered.reject(reason); - }); - }); - - return defered.promise; -}; - -// Process the pagination from a JSON array containing the pagelist -EPUBJS.Book.prototype.loadPagination = function(pagelistJSON) { - var pageList; - - if (typeof(pagelistJSON) === "string") { - pageList = JSON.parse(pagelistJSON); - } else { - pageList = pagelistJSON; - } - - if(pageList && pageList.length) { - this.pageList = pageList; - this.pagination.process(this.pageList); - this.ready.pageList.resolve(this.pageList); - } - return this.pageList; -}; - -EPUBJS.Book.prototype.getPageList = function() { - return this.ready.pageList.promise; -}; - -EPUBJS.Book.prototype.getMetadata = function() { - return this.ready.metadata.promise; -}; - -EPUBJS.Book.prototype.getToc = function() { - return this.ready.toc.promise; -}; - -/* Private Helpers */ - -//-- Listeners for browser events -EPUBJS.Book.prototype.networkListeners = function(){ - var book = this; - window.addEventListener("offline", function(e) { - book.online = false; - if (book.settings.storage) { - book.fromStorage(true); - } - book.trigger("book:offline"); - }, false); - - window.addEventListener("online", function(e) { - book.online = true; - if (book.settings.storage) { - book.fromStorage(false); - } - book.trigger("book:online"); - }, false); - -}; - -// Listen to all events the renderer triggers and pass them as book events -EPUBJS.Book.prototype.listenToRenderer = function(renderer){ - var book = this; - renderer.Events.forEach(function(eventName){ - renderer.on(eventName, function(e){ - book.trigger(eventName, e); - }); - }); - - renderer.on("renderer:visibleRangeChanged", function(range) { - var startPage, endPage, percent; - var pageRange = []; - - if(this.pageList.length > 0) { - startPage = this.pagination.pageFromCfi(range.start); - percent = this.pagination.percentageFromPage(startPage); - pageRange.push(startPage); - - if(range.end) { - endPage = this.pagination.pageFromCfi(range.end); - //if(startPage != endPage) { - pageRange.push(endPage); - //} - } - this.trigger("book:pageChanged", { - "anchorPage": startPage, - "percentage": percent, - "pageRange" : pageRange - }); - - // TODO: Add event for first and last page. - // (though last is going to be hard, since it could be several reflowed pages long) - } - }.bind(this)); - - renderer.on("render:loaded", this.loadChange.bind(this)); -}; - -// Listens for load events from the Renderer and checks against the current chapter -// Prevents the Render from loading a different chapter when back button is pressed -EPUBJS.Book.prototype.loadChange = function(url){ - var uri = EPUBJS.core.uri(url); - var chapterUri = EPUBJS.core.uri(this.currentChapter.absolute); - var spinePos, chapter; - - if(uri.path != chapterUri.path){ - console.warn("Miss Match", uri.path, this.currentChapter.absolute); - // this.goto(uri.filename); - - // Set the current chapter to what is being displayed - spinePos = this.spineIndexByURL[uri.filename]; - chapter = new EPUBJS.Chapter(this.spine[spinePos], this.store); - this.currentChapter = chapter; - - // setup the renderer with the displayed chapter - this.renderer.currentChapter = chapter; - this.renderer.afterLoad(this.renderer.render.docEl); - this.renderer.beforeDisplay(function () { - this.renderer.afterDisplay(); - }.bind(this)); - - } else if(!this._rendering) { - this.renderer.reformat(); - } -}; - -EPUBJS.Book.prototype.unlistenToRenderer = function(renderer){ - renderer.Events.forEach(function(eventName){ - renderer.off(eventName); - }); -}; - -//-- Returns the cover -EPUBJS.Book.prototype.coverUrl = function(){ - var retrieved = this.ready.cover.promise - .then(function(url) { - if(this.settings.fromStorage) { - return this.store.getUrl(this.contents.cover); - } else if(this.settings.contained) { - return this.zip.getUrl(this.contents.cover); - }else{ - return this.contents.cover; - } - }.bind(this)); - - retrieved.then(function(url) { - this.cover = url; - }.bind(this)); - - return retrieved; -}; - -//-- Choose between a request from store or a request from network -EPUBJS.Book.prototype.loadXml = function(url){ - if(this.settings.fromStorage) { - return this.store.getXml(url, this.settings.encoding); - } else if(this.settings.contained) { - return this.zip.getXml(url, this.settings.encoding); - }else{ - return EPUBJS.core.request(url, 'xml', this.settings.withCredentials); - } -}; - -//-- Turns a url into a absolute url -EPUBJS.Book.prototype.urlFrom = function(bookPath){ - var uri = EPUBJS.core.uri(bookPath), - absolute = uri.protocol, - fromRoot = uri.path[0] == "/", - location = window.location, - //-- Get URL orgin, try for native or combine - origin = location.origin || location.protocol + "//" + location.host, - baseTag = document.getElementsByTagName('base'), - base; - - - //-- Check is Base tag is set - - if(baseTag.length) { - base = baseTag[0].href; - } - - //-- 1. Check if url is absolute - if(uri.protocol){ - return uri.origin + uri.path; - } - - //-- 2. Check if url starts with /, add base url - if(!absolute && fromRoot){ - return (base || origin) + uri.path; - } - - //-- 3. Or find full path to url and add that - if(!absolute && !fromRoot){ - return EPUBJS.core.resolveUrl(base || location.pathname, uri.path); - } - -}; - - -EPUBJS.Book.prototype.unarchive = function(bookPath){ - var book = this, - unarchived; - - //-- Must use storage - // if(this.settings.storage == false ){ - // this.settings.storage = true; - // this.storage = new fileStorage.storage(); - // } - - this.zip = new EPUBJS.Unarchiver(); - this.store = this.zip; // Use zip storaged in ram - return this.zip.open(bookPath); -}; - -//-- Checks if url has a .epub or .zip extension, or is ArrayBuffer (of zip/epub) -EPUBJS.Book.prototype.isContained = function(bookUrl){ - if (bookUrl instanceof ArrayBuffer) { - return true; - } - var uri = EPUBJS.core.uri(bookUrl); - - if(uri.extension && (uri.extension == "epub" || uri.extension == "zip")){ - return true; - } - - return false; -}; - -//-- Checks if the book can be retrieved from localStorage -EPUBJS.Book.prototype.isSaved = function(bookKey) { - var storedSettings; - - if(!localStorage) { - return false; - } - - storedSettings = localStorage.getItem(bookKey); - - if( !localStorage || - storedSettings === null) { - return false; - } else { - return true; - } -}; - -// Generates the Book Key using the identifer in the manifest or other string provided -EPUBJS.Book.prototype.generateBookKey = function(identifier){ - return "epubjs:" + EPUBJS.VERSION + ":" + window.location.host + ":" + identifier; -}; - -EPUBJS.Book.prototype.saveContents = function(){ - if(!localStorage) { - return false; - } - localStorage.setItem(this.settings.bookKey, JSON.stringify(this.contents)); -}; - -EPUBJS.Book.prototype.removeSavedContents = function() { - if(!localStorage) { - return false; - } - localStorage.removeItem(this.settings.bookKey); -}; - - - -//-- Takes a string or a element -EPUBJS.Book.prototype.renderTo = function(elem){ - var book = this, - rendered; - - if(EPUBJS.core.isElement(elem)) { - this.element = elem; - } else if (typeof elem == "string") { - this.element = EPUBJS.core.getEl(elem); - } else { - console.error("Not an Element"); - return; - } - - rendered = this.opened. - then(function(){ - // book.render = new EPUBJS.Renderer[this.settings.renderer](book); - book.renderer.initialize(book.element, book.settings.width, book.settings.height); - - if(book.metadata.direction) { - book.renderer.setDirection(book.metadata.direction); - } - - book._rendered(); - return book.startDisplay(); - }); - - // rendered.then(null, function(error) { console.error(error); }); - - return rendered; -}; - -EPUBJS.Book.prototype.startDisplay = function(){ - var display; - - if(this.settings.goto) { - display = this.goto(this.settings.goto); - }else if(this.settings.previousLocationCfi) { - display = this.gotoCfi(this.settings.previousLocationCfi); - }else{ - display = this.displayChapter(this.spinePos, this.settings.displayLastPage); - } - - return display; -}; - -EPUBJS.Book.prototype.restore = function(identifier){ - - var book = this, - fetch = ['manifest', 'spine', 'metadata', 'cover', 'toc', 'spineNodeIndex', 'spineIndexByURL', 'globalLayoutProperties'], - reject = false, - bookKey = this.generateBookKey(identifier), - fromStore = localStorage.getItem(bookKey), - len = fetch.length, - i; - - if(this.settings.clearSaved) reject = true; - - if(!reject && fromStore != 'undefined' && fromStore !== null){ - book.contents = JSON.parse(fromStore); - - for(i = 0; i < len; i++) { - var item = fetch[i]; - - if(!book.contents[item]) { - reject = true; - break; - } - book[item] = book.contents[item]; - } - } - - if(reject || !fromStore || !this.contents || !this.settings.contentsPath){ - return false; - }else{ - this.settings.bookKey = bookKey; - this.ready.manifest.resolve(this.manifest); - this.ready.spine.resolve(this.spine); - this.ready.metadata.resolve(this.metadata); - this.ready.cover.resolve(this.cover); - this.ready.toc.resolve(this.toc); - return true; - } - -}; - -EPUBJS.Book.prototype.displayChapter = function(chap, end, deferred){ - var book = this, - render, - cfi, - pos, - store, - defer = deferred || new RSVP.defer(); - - var chapter; - - if(!this.isRendered) { - this._q.enqueue("displayChapter", arguments); - // Reject for now. TODO: pass promise to queue - defer.reject({ - message : "Rendering", - stack : new Error().stack - }); - return defer.promise; - } - - - if(this._rendering || this.renderer._moving) { - // Pass along the current defer - this._displayQ.enqueue("displayChapter", [chap, end, defer]); - return defer.promise; - } - - if(EPUBJS.core.isNumber(chap)){ - pos = chap; - }else{ - cfi = new EPUBJS.EpubCFI(chap); - pos = cfi.spinePos; - } - - if(pos < 0 || pos >= this.spine.length){ - console.warn("Not A Valid Location"); - pos = 0; - end = false; - cfi = false; - } - - //-- Create a new chapter - chapter = new EPUBJS.Chapter(this.spine[pos], this.store); - - this._rendering = true; - - if(this._needsAssetReplacement()) { - - chapter.registerHook("beforeChapterRender", [ - EPUBJS.replace.head, - EPUBJS.replace.resources, - EPUBJS.replace.posters, - EPUBJS.replace.svg - ], true); - - } - - book.currentChapter = chapter; - - render = book.renderer.displayChapter(chapter, this.globalLayoutProperties); - if(cfi) { - book.renderer.gotoCfi(cfi); - } else if(end) { - book.renderer.lastPage(); - } - //-- Success, Clear render queue - render.then(function(rendered){ - // var inwait; - //-- Set the book's spine position - book.spinePos = pos; - - defer.resolve(book.renderer); - - if(book.settings.fromStorage === false && - book.settings.contained === false) { - book.preloadNextChapter(); - } - - book._rendering = false; - book._displayQ.dequeue(); - if(book._displayQ.length() === 0) { - book._gotoQ.dequeue(); - } - - }, function(error) { - // handle errors in either of the two requests - console.error("Could not load Chapter: "+ chapter.absolute, error); - book.trigger("book:chapterLoadFailed", chapter.absolute); - book._rendering = false; - defer.reject(error); - }); - - return defer.promise; -}; - -EPUBJS.Book.prototype.nextPage = function(defer){ - var defer = defer || new RSVP.defer(); - - if (!this.isRendered) { - this._q.enqueue("nextPage", [defer]); - return defer.promise; - } - - var next = this.renderer.nextPage(); - if (!next){ - return this.nextChapter(defer); - } - - defer.resolve(true); - return defer.promise; -}; - -EPUBJS.Book.prototype.prevPage = function(defer) { - var defer = defer || new RSVP.defer(); - - if (!this.isRendered) { - this._q.enqueue("prevPage", [defer]); - return defer.promise; - } - - var prev = this.renderer.prevPage(); - if (!prev){ - return this.prevChapter(defer); - } - - defer.resolve(true); - return defer.promise; -}; - -EPUBJS.Book.prototype.nextChapter = function(defer) { - var defer = defer || new RSVP.defer(); - - if (this.spinePos < this.spine.length - 1) { - var next = this.spinePos + 1; - // Skip non linear chapters - while (this.spine[next] && this.spine[next].linear && this.spine[next].linear == 'no') { - next++; - } - if (next < this.spine.length) { - return this.displayChapter(next, false, defer); - } - } - - this.trigger("book:atEnd"); - defer.resolve(true); - return defer.promise; -}; - -EPUBJS.Book.prototype.prevChapter = function(defer) { - var defer = defer || new RSVP.defer(); - - if (this.spinePos > 0) { - var prev = this.spinePos - 1; - while (this.spine[prev] && this.spine[prev].linear && this.spine[prev].linear == 'no') { - prev--; - } - if (prev >= 0) { - return this.displayChapter(prev, true, defer); - } - } - - this.trigger("book:atStart"); - defer.resolve(true); - return defer.promise; -}; - -EPUBJS.Book.prototype.getCurrentLocationCfi = function() { - if(!this.isRendered) return false; - return this.renderer.currentLocationCfi; -}; - -EPUBJS.Book.prototype.goto = function(target){ - - if(target.indexOf("epubcfi(") === 0) { - return this.gotoCfi(target); - } else if(target.indexOf("%") === target.length-1) { - return this.gotoPercentage(parseInt(target.substring(0, target.length-1))/100); - } else if(typeof target === "number" || isNaN(target) === false){ - return this.gotoPage(target); - } else { - return this.gotoHref(target); - } - -}; - -EPUBJS.Book.prototype.gotoCfi = function(cfiString, defer){ - var cfi, - spinePos, - spineItem, - rendered, - promise, - render, - deferred = defer || new RSVP.defer(); - - if(!this.isRendered) { - console.warn("Not yet Rendered"); - this.settings.previousLocationCfi = cfiString; - return false; - } - - // Currently going to a chapter - if(this._moving || this._rendering) { - console.warn("Renderer is moving"); - this._gotoQ.enqueue("gotoCfi", [cfiString, deferred]); - return false; - } - - cfi = new EPUBJS.EpubCFI(cfiString); - spinePos = cfi.spinePos; - - if(spinePos == -1) { - return false; - } - - spineItem = this.spine[spinePos]; - promise = deferred.promise; - this._moving = true; - //-- If same chapter only stay on current chapter - if(this.currentChapter && this.spinePos === spinePos){ - this.renderer.gotoCfi(cfi); - this._moving = false; - deferred.resolve(this.renderer.currentLocationCfi); - } else { - - if(!spineItem || spinePos == -1) { - spinePos = 0; - spineItem = this.spine[spinePos]; - } - - render = this.displayChapter(cfiString); - - render.then(function(rendered){ - this._moving = false; - deferred.resolve(rendered.currentLocationCfi); - }.bind(this), function() { - this._moving = false; - }.bind(this)); - - } - - promise.then(function(){ - this._gotoQ.dequeue(); - }.bind(this)); - - return promise; -}; - -EPUBJS.Book.prototype.gotoHref = function(url, defer){ - var split, chapter, section, relativeURL, spinePos; - var deferred = defer || new RSVP.defer(); - - if(!this.isRendered) { - this.settings.goto = url; - return false; - } - - // Currently going to a chapter - if(this._moving || this._rendering) { - this._gotoQ.enqueue("gotoHref", [url, deferred]); - return false; - } - - split = url.split("#"); - chapter = split[0]; - section = split[1] || false; - if (chapter.search("://") == -1) { - relativeURL = chapter.replace(EPUBJS.core.uri(this.settings.contentsPath).path, ''); - } else { - relativeURL = chapter.replace(this.settings.contentsPath, ''); - } - spinePos = this.spineIndexByURL[relativeURL]; - - //-- If link fragment only stay on current chapter - if(!chapter){ - spinePos = this.currentChapter ? this.currentChapter.spinePos : 0; - } - - //-- Check that URL is present in the index, or stop - if(typeof(spinePos) != "number") return false; - - if(!this.currentChapter || spinePos != this.currentChapter.spinePos){ - //-- Load new chapter if different than current - return this.displayChapter(spinePos).then(function(){ - if(section){ - this.renderer.section(section); - } - deferred.resolve(this.renderer.currentLocationCfi); - }.bind(this)); - }else{ - //-- Goto section - if(section) { - this.renderer.section(section); - } else { - // Or jump to the start - this.renderer.firstPage(); - } - deferred.resolve(this.renderer.currentLocationCfi); - } - - deferred.promise.then(function(){ - this._gotoQ.dequeue(); - }.bind(this)); - - return deferred.promise; -}; - -EPUBJS.Book.prototype.gotoPage = function(pg){ - var cfi = this.pagination.cfiFromPage(pg); - return this.gotoCfi(cfi); -}; - -EPUBJS.Book.prototype.gotoPercentage = function(percent){ - var pg = this.pagination.pageFromPercentage(percent); - return this.gotoPage(pg); -}; - -EPUBJS.Book.prototype.preloadNextChapter = function() { - var next; - var chap = this.spinePos + 1; - - if(chap >= this.spine.length){ - return false; - } - - next = new EPUBJS.Chapter(this.spine[chap]); - if(next) { - EPUBJS.core.request(next.absolute); - } -}; - -EPUBJS.Book.prototype.storeOffline = function() { - var book = this, - assets = EPUBJS.core.values(this.manifest); - - //-- Creates a queue of all items to load - return this.store.put(assets). - then(function(){ - book.settings.stored = true; - book.trigger("book:stored"); - }); -}; - -EPUBJS.Book.prototype.availableOffline = function() { - return this.settings.stored > 0 ? true : false; -}; - -EPUBJS.Book.prototype.toStorage = function () { - var key = this.settings.bookKey; - this.store.isStored(key).then(function(stored) { - - if (stored === true) { - this.settings.stored = true; - return true; - } - - return this.storeOffline() - .then(function() { - this.store.token(key, true); - }.bind(this)); - - }.bind(this)); - -}; -EPUBJS.Book.prototype.fromStorage = function(stored) { - var hooks = [ - EPUBJS.replace.head, - EPUBJS.replace.resources, - EPUBJS.replace.posters, - EPUBJS.replace.svg - ]; - - if(this.contained || this.settings.contained) return; - - //-- If there is network connection, store the books contents - if(this.online){ - this.opened.then(this.toStorage.bind(this)); - } - - if(this.store && this.settings.fromStorage && stored === false){ - this.settings.fromStorage = false; - this.store.off("offline"); - // this.renderer.removeHook("beforeChapterRender", hooks, true); - this.store = false; - }else if(!this.settings.fromStorage){ - - this.store = new EPUBJS.Storage(this.settings.credentials); - this.store.on("offline", function (offline) { - if (!offline) { - // Online - this.offline = false; - this.settings.fromStorage = false; - // this.renderer.removeHook("beforeChapterRender", hooks, true); - this.trigger("book:online"); - } else { - // Offline - this.offline = true; - this.settings.fromStorage = true; - // this.renderer.registerHook("beforeChapterRender", hooks, true); - this.trigger("book:offline"); - } - }.bind(this)); - - } - -}; - -EPUBJS.Book.prototype.setStyle = function(style, val, prefixed) { - var noreflow = ["color", "background", "background-color"]; - - if(!this.isRendered) return this._q.enqueue("setStyle", arguments); - - this.settings.styles[style] = val; - - this.renderer.setStyle(style, val, prefixed); - - if(noreflow.indexOf(style) === -1) { - // clearTimeout(this.reformatTimeout); - // this.reformatTimeout = setTimeout(function(){ - this.renderer.reformat(); - // }.bind(this), 10); - } -}; - -EPUBJS.Book.prototype.removeStyle = function(style) { - if(!this.isRendered) return this._q.enqueue("removeStyle", arguments); - this.renderer.removeStyle(style); - this.renderer.reformat(); - delete this.settings.styles[style]; -}; - -EPUBJS.Book.prototype.resetClasses = function(classes) { - - if(!this.isRendered) return this._q.enqueue("setClasses", arguments); - - if(classes.constructor === String) classes = [ classes ]; - - this.settings.classes = classes; - - this.renderer.setClasses(this.settings.classes); - this.renderer.reformat(); -}; - -EPUBJS.Book.prototype.addClass = function(aClass) { - - if(!this.isRendered) return this._q.enqueue("addClass", arguments); - - if(this.settings.classes.indexOf(aClass) == -1) { - this.settings.classes.push(aClass); - } - - this.renderer.setClasses(this.settings.classes); - this.renderer.reformat(); -}; - -EPUBJS.Book.prototype.removeClass = function(aClass) { - - if(!this.isRendered) return this._q.enqueue("removeClass", arguments); - - var idx = this.settings.classes.indexOf(aClass); - - if(idx != -1) { - - delete this.settings.classes[idx]; - - this.renderer.setClasses(this.settings.classes); - this.renderer.reformat(); - - } - -}; - -EPUBJS.Book.prototype.addHeadTag = function(tag, attrs) { - if(!this.isRendered) return this._q.enqueue("addHeadTag", arguments); - this.settings.headTags[tag] = attrs; -}; - -EPUBJS.Book.prototype.useSpreads = function(use) { - console.warn("useSpreads is deprecated, use forceSingle or set a layoutOveride instead"); - if(use === false) { - this.forceSingle(true); - } else { - this.forceSingle(false); - } -}; - -EPUBJS.Book.prototype.forceSingle = function(_use) { - var force = typeof _use === "undefined" ? true : _use; - - this.renderer.forceSingle(force); - this.settings.forceSingle = force; - if(this.isRendered) { - this.renderer.reformat(); - } -}; - -EPUBJS.Book.prototype.setMinSpreadWidth = function(width) { - this.settings.minSpreadWidth = width; - if(this.isRendered) { - this.renderer.setMinSpreadWidth(this.settings.minSpreadWidth); - this.renderer.reformat(); - } -}; - -EPUBJS.Book.prototype.setGap = function(gap) { - this.settings.gap = gap; - if(this.isRendered) { - this.renderer.setGap(this.settings.gap); - this.renderer.reformat(); - } -}; - -EPUBJS.Book.prototype.chapter = function(path) { - var spinePos = this.spineIndexByURL[path]; - var spineItem; - var chapter; - - if(spinePos){ - spineItem = this.spine[spinePos]; - chapter = new EPUBJS.Chapter(spineItem, this.store, this.settings.withCredentials); - chapter.load(); - } - return chapter; -}; - -EPUBJS.Book.prototype.unload = function(){ - - if(this.settings.restore && localStorage) { - this.saveContents(); - } - - this.unlistenToRenderer(this.renderer); - - this.trigger("book:unload"); -}; - -EPUBJS.Book.prototype.destroy = function() { - - window.removeEventListener("beforeunload", this.unload); - - if(this.currentChapter) this.currentChapter.unload(); - - this.unload(); - - if(this.renderer) this.renderer.remove(); - -}; - -EPUBJS.Book.prototype._ready = function() { - - this.trigger("book:ready"); - -}; - -EPUBJS.Book.prototype._rendered = function(err) { - var book = this; - - this.isRendered = true; - this.trigger("book:rendered"); - - this._q.flush(); -}; - - -EPUBJS.Book.prototype.applyStyles = function(renderer, callback){ - // if(!this.isRendered) return this._q.enqueue("applyStyles", arguments); - renderer.applyStyles(this.settings.styles); - callback(); -}; - -EPUBJS.Book.prototype.applyClasses = function(renderer, callback){ - // if(!this.isRendered) return this._q.enqueue("applyClasses", arguments); - renderer.setClasses(this.settings.classes); - callback(); -}; - -EPUBJS.Book.prototype.applyHeadTags = function(renderer, callback){ - // if(!this.isRendered) return this._q.enqueue("applyHeadTags", arguments); - renderer.applyHeadTags(this.settings.headTags); - callback(); -}; - -EPUBJS.Book.prototype._registerReplacements = function(renderer){ - renderer.registerHook("beforeChapterDisplay", this.applyStyles.bind(this, renderer), true); - renderer.registerHook("beforeChapterDisplay", this.applyHeadTags.bind(this, renderer), true); - renderer.registerHook("beforeChapterDisplay", this.applyClasses.bind(this, renderer), true); - renderer.registerHook("beforeChapterDisplay", EPUBJS.replace.hrefs.bind(this), true); -}; - -EPUBJS.Book.prototype._needsAssetReplacement = function(){ - if(this.settings.fromStorage) { - - //-- Filesystem api links are relative, so no need to replace them - // if(this.storage.getStorageType() == "filesystem") { - // return false; - // } - - return true; - - } else if(this.settings.contained) { - - return true; - - } else { - - return false; - - } -}; - - -//-- http://www.idpf.org/epub/fxl/ -EPUBJS.Book.prototype.parseLayoutProperties = function(metadata){ - var layout = (this.settings.layoutOveride && this.settings.layoutOveride.layout) || metadata.layout || "reflowable"; - var spread = (this.settings.layoutOveride && this.settings.layoutOveride.spread) || metadata.spread || "auto"; - var orientation = (this.settings.layoutOveride && this.settings.layoutOveride.orientation) || metadata.orientation || "auto"; - return { - layout : layout, - spread : spread, - orientation : orientation - }; -}; - -//-- Enable binding events to book -RSVP.EventTarget.mixin(EPUBJS.Book.prototype); - -//-- Handle RSVP Errors -RSVP.on('error', function(event) { - console.error(event); -}); - -RSVP.configure('instrument', true); //-- true | will logging out all RSVP rejections -// RSVP.on('created', listener); -// RSVP.on('chained', listener); -// RSVP.on('fulfilled', listener); -// RSVP.on('rejected', function(event){ -// console.error(event.detail.message, event.detail.stack); -// }); - -EPUBJS.Chapter = function(spineObject, store, credentials){ - this.href = spineObject.href; - this.absolute = spineObject.url; - this.id = spineObject.id; - this.spinePos = spineObject.index; - this.cfiBase = spineObject.cfiBase; - this.properties = spineObject.properties; - this.manifestProperties = spineObject.manifestProperties; - this.linear = spineObject.linear; - this.pages = 1; - this.store = store; - this.credentials = credentials; - this.epubcfi = new EPUBJS.EpubCFI(); - this.deferred = new RSVP.defer(); - this.loaded = this.deferred.promise; - - EPUBJS.Hooks.mixin(this); - //-- Get pre-registered hooks for events - this.getHooks("beforeChapterRender"); - - // Cached for replacement urls from storage - this.caches = {}; -}; - - -EPUBJS.Chapter.prototype.load = function(_store, _credentials){ - var store = _store || this.store; - var credentials = _credentials || this.credentials; - var promise; - // if(this.store && (!this.book.online || this.book.contained)) - if(store){ - promise = store.getXml(this.absolute); - }else{ - promise = EPUBJS.core.request(this.absolute, false, credentials); - } - - promise.then(function(xml){ - try { - this.setDocument(xml); - this.deferred.resolve(this); - } catch (error) { - this.deferred.reject({ - message : this.absolute + " -> " + error.message, - stack : new Error().stack - }); - } - }.bind(this)); - - return promise; -}; - -EPUBJS.Chapter.prototype.render = function(_store){ - - return this.load().then(function(doc){ - - var head = doc.querySelector('head'); - var base = doc.createElement("base"); - - base.setAttribute("href", this.absolute); - head.insertBefore(base, head.firstChild); - - this.contents = doc; - - return new RSVP.Promise(function (resolve, reject) { - this.triggerHooks("beforeChapterRender", function () { - resolve(doc); - }.bind(this), this); - }.bind(this)); - - }.bind(this)) - .then(function(doc) { - var serializer = new XMLSerializer(); - var contents = serializer.serializeToString(doc); - return contents; - }.bind(this)); -}; - -EPUBJS.Chapter.prototype.url = function(_store){ - var deferred = new RSVP.defer(); - var store = _store || this.store; - var loaded; - var chapter = this; - var url; - - if(store){ - if(!this.tempUrl) { - store.getUrl(this.absolute).then(function(url){ - chapter.tempUrl = url; - deferred.resolve(url); - }); - } else { - url = this.tempUrl; - deferred.resolve(url); - } - }else{ - url = this.absolute; - deferred.resolve(url); - } - - return deferred.promise; -}; - -EPUBJS.Chapter.prototype.setPages = function(num){ - this.pages = num; -}; - -EPUBJS.Chapter.prototype.getPages = function(num){ - return this.pages; -}; - -EPUBJS.Chapter.prototype.getID = function(){ - return this.ID; -}; - -EPUBJS.Chapter.prototype.unload = function(store){ - this.document = null; - if(this.tempUrl && store) { - store.revokeUrl(this.tempUrl); - this.tempUrl = false; - } -}; - -EPUBJS.Chapter.prototype.setDocument = function(_document){ - // var uri = _document.namespaceURI; - // var doctype = _document.doctype; - // - // // Creates an empty document - // this.document = _document.implementation.createDocument( - // uri, - // null, - // null - // ); - // this.contents = this.document.importNode( - // _document.documentElement, //node to import - // true //clone its descendants - // ); - // - // this.document.appendChild(this.contents); - this.document = _document; - this.contents = _document.documentElement; - - // Fix to apply wgxpath to new document in IE - if(!this.document.evaluate && document.evaluate) { - this.document.evaluate = document.evaluate; - } - - // this.deferred.resolve(this.contents); -}; - -EPUBJS.Chapter.prototype.cfiFromRange = function(_range) { - var range; - var startXpath, endXpath; - var startContainer, endContainer; - var cleanTextContent, cleanStartTextContent, cleanEndTextContent; - - // Check for Contents - if(!this.document) return; - - if(typeof document.evaluate != 'undefined') { - - startXpath = EPUBJS.core.getElementXPath(_range.startContainer); - // console.log(startContainer) - endXpath = EPUBJS.core.getElementXPath(_range.endContainer); - - startContainer = this.document.evaluate(startXpath, this.document, EPUBJS.core.nsResolver, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue; - - if(!_range.collapsed) { - endContainer = this.document.evaluate(endXpath, this.document, EPUBJS.core.nsResolver, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue; - } - - range = this.document.createRange(); - // Find Exact Range in original document - if(startContainer) { - try { - range.setStart(startContainer, _range.startOffset); - if(!_range.collapsed && endContainer) { - range.setEnd(endContainer, _range.endOffset); - } - } catch (e) { - console.log("missed"); - startContainer = false; - } - - } - - // Fuzzy Match - if(!startContainer) { - console.log("not found, try fuzzy match"); - cleanStartTextContent = EPUBJS.core.cleanStringForXpath(_range.startContainer.textContent); - startXpath = "//text()[contains(.," + cleanStartTextContent + ")]"; - - startContainer = this.document.evaluate(startXpath, this.document, EPUBJS.core.nsResolver, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue; - - if(startContainer){ - // console.log("Found with Fuzzy"); - range.setStart(startContainer, _range.startOffset); - - if(!_range.collapsed) { - cleanEndTextContent = EPUBJS.core.cleanStringForXpath(_range.endContainer.textContent); - endXpath = "//text()[contains(.," + cleanEndTextContent + ")]"; - endContainer = this.document.evaluate(endXpath, this.document, EPUBJS.core.nsResolver, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue; - if(endContainer) { - range.setEnd(endContainer, _range.endOffset); - } - } - - } - } - } else { - range = _range; // Just evaluate the current documents range - } - - // Generate the Cfi - return this.epubcfi.generateCfiFromRange(range, this.cfiBase); -}; - -EPUBJS.Chapter.prototype.find = function(_query){ - var chapter = this; - var matches = []; - var query = _query.toLowerCase(); - //var xpath = this.document.evaluate(".//text()[contains(translate(., '"+query.toUpperCase()+"', '"+query+"'),'"+query+"')]", this.document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null); - var find = function(node){ - // Search String - var text = node.textContent.toLowerCase(); - var range = chapter.document.createRange(); - var cfi; - var pos; - var last = -1; - var excerpt; - var limit = 150; - - while (pos != -1) { - pos = text.indexOf(query, last + 1); - - if(pos != -1) { - // If Found, Create Range - range = chapter.document.createRange(); - range.setStart(node, pos); - range.setEnd(node, pos + query.length); - - //Generate CFI - cfi = chapter.cfiFromRange(range); - - // Generate Excerpt - if(node.textContent.length < limit) { - excerpt = node.textContent; - } else { - excerpt = node.textContent.substring(pos-limit/2,pos+limit/2); - excerpt = "..." + excerpt + "..."; - } - - //Add CFI to list - matches.push({ - cfi: cfi, - excerpt: excerpt - }); - } - - last = pos; - } - - }; - - // Grab text nodes - - /* - for ( var i=0 ; i < xpath.snapshotLength; i++ ) { - find(xpath.snapshotItem(i)); - } - */ - - this.textSprint(this.document, function(node){ - find(node); - }); - - - // Return List of CFIs - return matches; -}; - - -EPUBJS.Chapter.prototype.textSprint = function(root, func) { - var treeWalker = document.createTreeWalker(root, NodeFilter.SHOW_TEXT, { - acceptNode: function (node) { - if (node.data && ! /^\s*$/.test(node.data) ) { - return NodeFilter.FILTER_ACCEPT; - } else { - return NodeFilter.FILTER_REJECT; - } - } - }, false); - var node; - while ((node = treeWalker.nextNode())) { - func(node); - } - -}; - -EPUBJS.Chapter.prototype.replace = function(query, func, finished, progress){ - var items = this.contents.querySelectorAll(query), - resources = Array.prototype.slice.call(items), - count = resources.length; - - - if(count === 0) { - finished(false); - return; - } - resources.forEach(function(item){ - var called = false; - var after = function(result, full){ - if(called === false) { - count--; - if(progress) progress(result, full, count); - if(count <= 0 && finished) finished(true); - called = true; - } - }; - - func(item, after); - - }.bind(this)); - -}; - -EPUBJS.Chapter.prototype.replaceWithStored = function(query, attr, func, callback) { - var _oldUrls, - _newUrls = {}, - _store = this.store, - _cache = this.caches[query], - _uri = EPUBJS.core.uri(this.absolute), - _chapterBase = _uri.base, - _attr = attr, - _wait = 5, - progress = function(url, full, count) { - _newUrls[full] = url; - }, - finished = function(notempty) { - if(callback) callback(); - EPUBJS.core.values(_oldUrls).forEach(function(url){ - _store.revokeUrl(url); - }); - - _cache = _newUrls; - }; - - if(!_store) return; - - if(!_cache) _cache = {}; - _oldUrls = EPUBJS.core.clone(_cache); - - this.replace(query, function(link, done){ - var src = link.getAttribute(_attr), - full = EPUBJS.core.resolveUrl(_chapterBase, src); - - var replaceUrl = function(url) { - var timeout; - link.onload = function(){ - clearTimeout(timeout); - done(url, full); - }; - - /* - link.onerror = function(e){ - clearTimeout(timeout); - done(url, full); - console.error(e); - }; - */ - - if(query == "svg image") { - //-- SVG needs this to trigger a load event - link.setAttribute("externalResourcesRequired", "true"); - } - - if(query == "link[href]" && link.getAttribute("rel") !== "stylesheet") { - //-- Only Stylesheet links seem to have a load events, just continue others - done(url, full); - } else { - timeout = setTimeout(function(){ - done(url, full); - }, _wait); - } - - if (url) { - link.setAttribute(_attr, url); - } - - }; - - if(full in _oldUrls){ - replaceUrl(_oldUrls[full]); - _newUrls[full] = _oldUrls[full]; - delete _oldUrls[full]; - }else{ - func(_store, full, replaceUrl, link); - } - - }, finished, progress); -}; - -var EPUBJS = EPUBJS || {}; -EPUBJS.core = {}; - -var ELEMENT_NODE = 1; -var TEXT_NODE = 3; -var COMMENT_NODE = 8; -var DOCUMENT_NODE = 9; - -//-- Get a element for an id -EPUBJS.core.getEl = function(elem) { - return document.getElementById(elem); -}; - -//-- Get all elements for a class -EPUBJS.core.getEls = function(classes) { - return document.getElementsByClassName(classes); -}; - -EPUBJS.core.request = function(url, type, withCredentials) { - var supportsURL = window.URL; - var BLOB_RESPONSE = supportsURL ? "blob" : "arraybuffer"; - var deferred = new RSVP.defer(); - var xhr = new XMLHttpRequest(); - var uri; - - //-- Check from PDF.js: - // https://github.com/mozilla/pdf.js/blob/master/web/compatibility.js - var xhrPrototype = XMLHttpRequest.prototype; - - var handler = function() { - var r; - - if (this.readyState != this.DONE) return; - - if ((this.status === 200 || this.status === 0) && this.response) { // Android & Firefox reporting 0 for local & blob urls - if (type == 'xml'){ - // If this.responseXML wasn't set, try to parse using a DOMParser from text - if(!this.responseXML) { - r = new DOMParser().parseFromString(this.response, "application/xml"); - } else { - r = this.responseXML; - } - } else if (type == 'xhtml') { - if (!this.responseXML){ - r = new DOMParser().parseFromString(this.response, "application/xhtml+xml"); - } else { - r = this.responseXML; - } - } else if (type == 'html') { - if (!this.responseXML){ - r = new DOMParser().parseFromString(this.response, "text/html"); - } else { - r = this.responseXML; - } - } else if (type == 'json') { - r = JSON.parse(this.response); - } else if (type == 'blob') { - if (supportsURL) { - r = this.response; - } else { - //-- Safari doesn't support responseType blob, so create a blob from arraybuffer - r = new Blob([this.response]); - } - } else { - r = this.response; - } - - deferred.resolve(r); - } else { - deferred.reject({ - message : this.response, - stack : new Error().stack - }); - } - }; - - if (!('overrideMimeType' in xhrPrototype)) { - // IE10 might have response, but not overrideMimeType - Object.defineProperty(xhrPrototype, 'overrideMimeType', { - value: function xmlHttpRequestOverrideMimeType(mimeType) {} - }); - } - - xhr.onreadystatechange = handler; - xhr.open("GET", url, true); - - if(withCredentials) { - xhr.withCredentials = true; - } - - // If type isn't set, determine it from the file extension - if(!type) { - uri = EPUBJS.core.uri(url); - type = uri.extension; - type = { - 'htm': 'html' - }[type] || type; - } - - if(type == 'blob'){ - xhr.responseType = BLOB_RESPONSE; - } - - if(type == "json") { - xhr.setRequestHeader("Accept", "application/json"); - } - - if(type == 'xml') { - xhr.responseType = "document"; - xhr.overrideMimeType('text/xml'); // for OPF parsing - } - - if(type == 'xhtml') { - xhr.responseType = "document"; - } - - if(type == 'html') { - xhr.responseType = "document"; - } - - if(type == "binary") { - xhr.responseType = "arraybuffer"; - } - - xhr.send(); - - return deferred.promise; -}; - -EPUBJS.core.toArray = function(obj) { - var arr = []; - - for (var member in obj) { - var newitm; - if ( obj.hasOwnProperty(member) ) { - newitm = obj[member]; - newitm.ident = member; - arr.push(newitm); - } - } - - return arr; -}; - -//-- Parse the different parts of a url, returning a object -EPUBJS.core.uri = function(url){ - var uri = { - protocol : '', - host : '', - path : '', - origin : '', - directory : '', - base : '', - filename : '', - extension : '', - fragment : '', - href : url - }, - blob = url.indexOf('blob:'), - doubleSlash = url.indexOf('://'), - search = url.indexOf('?'), - fragment = url.indexOf("#"), - withoutProtocol, - dot, - firstSlash; - - if(blob === 0) { - uri.protocol = "blob"; - uri.base = url.indexOf(0, fragment); - return uri; - } - - if(fragment != -1) { - uri.fragment = url.slice(fragment + 1); - url = url.slice(0, fragment); - } - - if(search != -1) { - uri.search = url.slice(search + 1); - url = url.slice(0, search); - href = uri.href; - } - - if(doubleSlash != -1) { - uri.protocol = url.slice(0, doubleSlash); - withoutProtocol = url.slice(doubleSlash+3); - firstSlash = withoutProtocol.indexOf('/'); - - if(firstSlash === -1) { - uri.host = uri.path; - uri.path = ""; - } else { - uri.host = withoutProtocol.slice(0, firstSlash); - uri.path = withoutProtocol.slice(firstSlash); - } - - - uri.origin = uri.protocol + "://" + uri.host; - - uri.directory = EPUBJS.core.folder(uri.path); - - uri.base = uri.origin + uri.directory; - // return origin; - } else { - uri.path = url; - uri.directory = EPUBJS.core.folder(url); - uri.base = uri.directory; - } - - //-- Filename - uri.filename = url.replace(uri.base, ''); - dot = uri.filename.lastIndexOf('.'); - if(dot != -1) { - uri.extension = uri.filename.slice(dot+1); - } - return uri; -}; - -//-- Parse out the folder, will return everything before the last slash - -EPUBJS.core.folder = function(url){ - - var lastSlash = url.lastIndexOf('/'); - - if(lastSlash == -1) var folder = ''; - - folder = url.slice(0, lastSlash + 1); - - return folder; - -}; - -//-- https://github.com/ebidel/filer.js/blob/master/src/filer.js#L128 -EPUBJS.core.dataURLToBlob = function(dataURL) { - var BASE64_MARKER = ';base64,', - parts, contentType, raw, rawLength, uInt8Array; - - if (dataURL.indexOf(BASE64_MARKER) == -1) { - parts = dataURL.split(','); - contentType = parts[0].split(':')[1]; - raw = parts[1]; - - return new Blob([raw], {type: contentType}); - } - - parts = dataURL.split(BASE64_MARKER); - contentType = parts[0].split(':')[1]; - raw = window.atob(parts[1]); - rawLength = raw.length; - - uInt8Array = new Uint8Array(rawLength); - - for (var i = 0; i < rawLength; ++i) { - uInt8Array[i] = raw.charCodeAt(i); - } - - return new Blob([uInt8Array], {type: contentType}); -}; - -//-- Load scripts async: http://stackoverflow.com/questions/7718935/load-scripts-asynchronously -EPUBJS.core.addScript = function(src, callback, target) { - var s, r; - r = false; - s = document.createElement('script'); - s.type = 'text/javascript'; - s.async = false; - s.src = src; - s.onload = s.onreadystatechange = function() { - if ( !r && (!this.readyState || this.readyState == 'complete') ) { - r = true; - if(callback) callback(); - } - }; - target = target || document.body; - target.appendChild(s); -}; - -EPUBJS.core.addScripts = function(srcArr, callback, target) { - var total = srcArr.length, - curr = 0, - cb = function(){ - curr++; - if(total == curr){ - if(callback) callback(); - }else{ - EPUBJS.core.addScript(srcArr[curr], cb, target); - } - }; - - EPUBJS.core.addScript(srcArr[curr], cb, target); -}; - -EPUBJS.core.addCss = function(src, callback, target) { - var s, r; - r = false; - s = document.createElement('link'); - s.type = 'text/css'; - s.rel = "stylesheet"; - s.href = src; - s.onload = s.onreadystatechange = function() { - if ( !r && (!this.readyState || this.readyState == 'complete') ) { - r = true; - if(callback) callback(); - } - }; - target = target || document.body; - target.appendChild(s); -}; - -EPUBJS.core.prefixed = function(unprefixed) { - var vendors = ["Webkit", "Moz", "O", "ms" ], - prefixes = ['-Webkit-', '-moz-', '-o-', '-ms-'], - upper = unprefixed[0].toUpperCase() + unprefixed.slice(1), - length = vendors.length; - - if (typeof(document.documentElement.style[unprefixed]) != 'undefined') { - return unprefixed; - } - - for ( var i=0; i < length; i++ ) { - if (typeof(document.documentElement.style[vendors[i] + upper]) != 'undefined') { - return vendors[i] + upper; - } - } - - return unprefixed; -}; - -EPUBJS.core.resolveUrl = function(base, path) { - var url, - segments = [], - uri = EPUBJS.core.uri(path), - folders = base.split("/"), - paths; - - if(uri.host) { - return path; - } - - folders.pop(); - - paths = path.split("/"); - paths.forEach(function(p){ - if(p === ".."){ - folders.pop(); - }else{ - segments.push(p); - } - }); - - url = folders.concat(segments); - - return url.join("/"); -}; - -// http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript -EPUBJS.core.uuid = function() { - var d = new Date().getTime(); - var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) { - var r = (d + Math.random()*16)%16 | 0; - d = Math.floor(d/16); - return (c=='x' ? r : (r&0x7|0x8)).toString(16); - }); - return uuid; -}; - -// Fast quicksort insert for sorted array -- based on: -// http://stackoverflow.com/questions/1344500/efficient-way-to-insert-a-number-into-a-sorted-array-of-numbers -EPUBJS.core.insert = function(item, array, compareFunction) { - var location = EPUBJS.core.locationOf(item, array, compareFunction); - array.splice(location, 0, item); - - return location; -}; - -EPUBJS.core.locationOf = function(item, array, compareFunction, _start, _end) { - var start = _start || 0; - var end = _end || array.length; - var pivot = parseInt(start + (end - start) / 2); - var compared; - if(!compareFunction){ - compareFunction = function(a, b) { - if(a > b) return 1; - if(a < b) return -1; - if(a = b) return 0; - }; - } - if(end-start <= 0) { - return pivot; - } - - compared = compareFunction(array[pivot], item); - if(end-start === 1) { - return compared > 0 ? pivot : pivot + 1; - } - - if(compared === 0) { - return pivot; - } - if(compared === -1) { - return EPUBJS.core.locationOf(item, array, compareFunction, pivot, end); - } else{ - return EPUBJS.core.locationOf(item, array, compareFunction, start, pivot); - } -}; - -EPUBJS.core.indexOfSorted = function(item, array, compareFunction, _start, _end) { - var start = _start || 0; - var end = _end || array.length; - var pivot = parseInt(start + (end - start) / 2); - var compared; - if(!compareFunction){ - compareFunction = function(a, b) { - if(a > b) return 1; - if(a < b) return -1; - if(a = b) return 0; - }; - } - if(end-start <= 0) { - return -1; // Not found - } - - compared = compareFunction(array[pivot], item); - if(end-start === 1) { - return compared === 0 ? pivot : -1; - } - if(compared === 0) { - return pivot; // Found - } - if(compared === -1) { - return EPUBJS.core.indexOfSorted(item, array, compareFunction, pivot, end); - } else{ - return EPUBJS.core.indexOfSorted(item, array, compareFunction, start, pivot); - } -}; - - -EPUBJS.core.queue = function(_scope){ - var _q = []; - var scope = _scope; - // Add an item to the queue - var enqueue = function(funcName, args, context) { - _q.push({ - "funcName" : funcName, - "args" : args, - "context" : context - }); - return _q; - }; - // Run one item - var dequeue = function(){ - var inwait; - if(_q.length) { - inwait = _q.shift(); - // Defer to any current tasks - // setTimeout(function(){ - scope[inwait.funcName].apply(inwait.context || scope, inwait.args); - // }, 0); - } - }; - - // Run All - var flush = function(){ - while(_q.length) { - dequeue(); - } - }; - // Clear all items in wait - var clear = function(){ - _q = []; - }; - - var length = function(){ - return _q.length; - }; - - return { - "enqueue" : enqueue, - "dequeue" : dequeue, - "flush" : flush, - "clear" : clear, - "length" : length - }; -}; - -// From: https://code.google.com/p/fbug/source/browse/branches/firebug1.10/content/firebug/lib/xpath.js -/** - * Gets an XPath for an element which describes its hierarchical location. - */ -EPUBJS.core.getElementXPath = function(element) { - if (element && element.id) { - return '//*[@id="' + element.id + '"]'; - } else { - return EPUBJS.core.getElementTreeXPath(element); - } -}; - -EPUBJS.core.getElementTreeXPath = function(element) { - var paths = []; - var isXhtml = (element.ownerDocument.documentElement.getAttribute('xmlns') === "http://www.w3.org/1999/xhtml"); - var index, nodeName, tagName, pathIndex; - - if(element.nodeType === Node.TEXT_NODE){ - // index = Array.prototype.indexOf.call(element.parentNode.childNodes, element) + 1; - index = EPUBJS.core.indexOfTextNode(element) + 1; - - paths.push("text()["+index+"]"); - element = element.parentNode; - } - - // Use nodeName (instead of localName) so namespace prefix is included (if any). - for (; element && element.nodeType == 1; element = element.parentNode) - { - index = 0; - for (var sibling = element.previousSibling; sibling; sibling = sibling.previousSibling) - { - // Ignore document type declaration. - if (sibling.nodeType == Node.DOCUMENT_TYPE_NODE) { - continue; - } - if (sibling.nodeName == element.nodeName) { - ++index; - } - } - nodeName = element.nodeName.toLowerCase(); - tagName = (isXhtml ? "xhtml:" + nodeName : nodeName); - pathIndex = (index ? "[" + (index+1) + "]" : ""); - paths.splice(0, 0, tagName + pathIndex); - } - - return paths.length ? "./" + paths.join("/") : null; -}; - -EPUBJS.core.nsResolver = function(prefix) { - var ns = { - 'xhtml' : 'http://www.w3.org/1999/xhtml', - 'epub': 'http://www.idpf.org/2007/ops' - }; - return ns[prefix] || null; -}; - -//https://stackoverflow.com/questions/13482352/xquery-looking-for-text-with-single-quote/13483496#13483496 -EPUBJS.core.cleanStringForXpath = function(str) { - var parts = str.match(/[^'"]+|['"]/g); - parts = parts.map(function(part){ - if (part === "'") { - return '\"\'\"'; // output "'" - } - - if (part === '"') { - return "\'\"\'"; // output '"' - } - return "\'" + part + "\'"; - }); - return "concat(\'\'," + parts.join(",") + ")"; -}; - -EPUBJS.core.indexOfTextNode = function(textNode){ - var parent = textNode.parentNode; - var children = parent.childNodes; - var sib; - var index = -1; - for (var i = 0; i < children.length; i++) { - sib = children[i]; - if(sib.nodeType === Node.TEXT_NODE){ - index++; - } - if(sib == textNode) break; - } - - return index; -}; - -// Underscore -EPUBJS.core.defaults = function(obj) { - for (var i = 1, length = arguments.length; i < length; i++) { - var source = arguments[i]; - for (var prop in source) { - if (obj[prop] === void 0) obj[prop] = source[prop]; - } - } - return obj; -}; - -EPUBJS.core.extend = function(target) { - var sources = [].slice.call(arguments, 1); - sources.forEach(function (source) { - if(!source) return; - Object.getOwnPropertyNames(source).forEach(function(propName) { - Object.defineProperty(target, propName, Object.getOwnPropertyDescriptor(source, propName)); - }); - }); - return target; -}; - -EPUBJS.core.clone = function(obj) { - return EPUBJS.core.isArray(obj) ? obj.slice() : EPUBJS.core.extend({}, obj); -}; - -EPUBJS.core.isElement = function(obj) { - return !!(obj && obj.nodeType == 1); -}; - -EPUBJS.core.isNumber = function(n) { - return !isNaN(parseFloat(n)) && isFinite(n); -}; - -EPUBJS.core.isString = function(str) { - return (typeof str === 'string' || str instanceof String); -}; - -EPUBJS.core.isArray = Array.isArray || function(obj) { - return Object.prototype.toString.call(obj) === '[object Array]'; -}; - -// Lodash -EPUBJS.core.values = function(object) { - var index = -1; - var props, length, result; - - if(!object) return []; - - props = Object.keys(object); - length = props.length; - result = Array(length); - - while (++index < length) { - result[index] = object[props[index]]; - } - return result; -}; - -EPUBJS.core.indexOfNode = function(node, typeId) { - var parent = node.parentNode; - var children = parent.childNodes; - var sib; - var index = -1; - for (var i = 0; i < children.length; i++) { - sib = children[i]; - if (sib.nodeType === typeId) { - index++; - } - if (sib == node) break; - } - - return index; -} - -EPUBJS.core.indexOfTextNode = function(textNode) { - return EPUBJS.core.indexOfNode(textNode, TEXT_NODE); -} - -EPUBJS.core.indexOfElementNode = function(elementNode) { - return EPUBJS.core.indexOfNode(elementNode, ELEMENT_NODE); -} - -EPUBJS.EpubCFI = function(cfiStr){ - if(cfiStr) return this.parse(cfiStr); -}; - -EPUBJS.EpubCFI.prototype.generateChapterComponent = function(_spineNodeIndex, _pos, id) { - var pos = parseInt(_pos), - spineNodeIndex = (_spineNodeIndex + 1) * 2, - cfi = '/'+spineNodeIndex+'/'; - - cfi += (pos + 1) * 2; - - if(id) cfi += "[" + id + "]"; - - //cfi += "!"; - - return cfi; -}; - -EPUBJS.EpubCFI.prototype.generatePathComponent = function(steps) { - return steps.map(function(part) { - return (part.index + 1) * 2 + (part.id ? '[' + part.id + ']' : ''); - }).join('/'); -}; - -EPUBJS.EpubCFI.prototype.generateCfiFromElement = function(element, chapter) { - var steps = this.pathTo(element); - var path = this.generatePathComponent(steps); - if(!path.length) { - // Start of Chapter - return "epubcfi(" + chapter + "!/4/)"; - } else { - // First Text Node - return "epubcfi(" + chapter + "!/" + path + "/1:0)"; - } -}; - -EPUBJS.EpubCFI.prototype.pathTo = function(node) { - var stack = [], - children; - - while(node && node.parentNode !== null && node.parentNode.nodeType != 9) { - children = node.parentNode.children; - - stack.unshift({ - 'id' : node.id, - // 'classList' : node.classList, - 'tagName' : node.tagName, - 'index' : children ? Array.prototype.indexOf.call(children, node) : 0 - }); - - node = node.parentNode; - } - - return stack; -}; - -EPUBJS.EpubCFI.prototype.getChapterComponent = function(cfiStr) { - - var splitStr = cfiStr.split("!"); - - return splitStr[0]; -}; - -EPUBJS.EpubCFI.prototype.getPathComponent = function(cfiStr) { - - var splitStr = cfiStr.split("!"); - var pathComponent = splitStr[1] ? splitStr[1].split(":") : ''; - - return pathComponent[0]; -}; - -EPUBJS.EpubCFI.prototype.getCharecterOffsetComponent = // backwards-compat -EPUBJS.EpubCFI.prototype.getCharacterOffsetComponent = function(cfiStr) { - var splitStr = cfiStr.split(":"); - return splitStr[1] || ''; -}; - - -EPUBJS.EpubCFI.prototype.parse = function(cfiStr) { - var cfi = {}, - chapSegment, - chapterComponent, - pathComponent, - characterOffsetComponent, - assertion, - chapId, - path, - end, - endInt, - text, - parseStep = function(part){ - var type, index, has_brackets, id; - - type = "element"; - index = parseInt(part) / 2 - 1; - has_brackets = part.match(/\[(.*)\]/); - if(has_brackets && has_brackets[1]){ - id = has_brackets[1]; - } - - return { - "type" : type, - 'index' : index, - 'id' : id || false - }; - }; - - if(typeof cfiStr !== "string") { - return {spinePos: -1}; - } - - cfi.str = cfiStr; - - if(cfiStr.indexOf("epubcfi(") === 0 && cfiStr[cfiStr.length-1] === ")") { - // Remove intial epubcfi( and ending ) - cfiStr = cfiStr.slice(8, cfiStr.length-1); - } - - chapterComponent = this.getChapterComponent(cfiStr); - pathComponent = this.getPathComponent(cfiStr) || ''; - characterOffsetComponent = this.getCharacterOffsetComponent(cfiStr); - // Make sure this is a valid cfi or return - if(!chapterComponent) { - return {spinePos: -1}; - } - - // Chapter segment is always the second one - chapSegment = chapterComponent.split("/")[2] || ''; - if(!chapSegment) return {spinePos:-1}; - - cfi.spinePos = (parseInt(chapSegment) / 2 - 1 ) || 0; - - chapId = chapSegment.match(/\[(.*)\]/); - - cfi.spineId = chapId ? chapId[1] : false; - - if(pathComponent.indexOf(',') != -1) { - // Handle ranges -- not supported yet - console.warn("CFI Ranges are not supported"); - } - - path = pathComponent.split('/'); - end = path.pop(); - - cfi.steps = []; - - path.forEach(function(part){ - var step; - - if(part) { - step = parseStep(part); - cfi.steps.push(step); - } - }); - - //-- Check if END is a text node or element - endInt = parseInt(end); - if(!isNaN(endInt)) { - - if(endInt % 2 === 0) { // Even = is an element - cfi.steps.push(parseStep(end)); - } else { - cfi.steps.push({ - "type" : "text", - 'index' : (endInt - 1 ) / 2 - }); - } - - } - - assertion = characterOffsetComponent.match(/\[(.*)\]/); - if(assertion && assertion[1]){ - cfi.characterOffset = parseInt(characterOffsetComponent.split('[')[0]); - // We arent handling these assertions yet - cfi.textLocationAssertion = assertion[1]; - } else { - cfi.characterOffset = parseInt(characterOffsetComponent); - } - - return cfi; -}; - -EPUBJS.EpubCFI.prototype.addMarker = function(cfi, _doc, _marker) { - var doc = _doc || document; - var marker = _marker || this.createMarker(doc); - var parent; - var lastStep; - var text; - var split; - - if(typeof cfi === 'string') { - cfi = this.parse(cfi); - } - // Get the terminal step - lastStep = cfi.steps[cfi.steps.length-1]; - - // check spinePos - if(cfi.spinePos === -1) { - // Not a valid CFI - return false; - } - - // Find the CFI elements parent - parent = this.findParent(cfi, doc); - - if(!parent) { - // CFI didn't return an element - // Maybe it isnt in the current chapter? - return false; - } - - if(lastStep && lastStep.type === "text") { - text = parent.childNodes[lastStep.index]; - if(cfi.characterOffset){ - split = text.splitText(cfi.characterOffset); - marker.classList.add("EPUBJS-CFI-SPLIT"); - parent.insertBefore(marker, split); - } else { - parent.insertBefore(marker, text); - } - } else { - parent.insertBefore(marker, parent.firstChild); - } - - return marker; -}; - -EPUBJS.EpubCFI.prototype.createMarker = function(_doc) { - var doc = _doc || document; - var element = doc.createElement('span'); - element.id = "EPUBJS-CFI-MARKER:"+ EPUBJS.core.uuid(); - element.classList.add("EPUBJS-CFI-MARKER"); - - return element; -}; - -EPUBJS.EpubCFI.prototype.removeMarker = function(marker, _doc) { - var doc = _doc || document; - // var id = marker.id; - - // Cleanup textnodes if they were split - if(marker.classList.contains("EPUBJS-CFI-SPLIT")){ - nextSib = marker.nextSibling; - prevSib = marker.previousSibling; - if(nextSib && - prevSib && - nextSib.nodeType === 3 && - prevSib.nodeType === 3){ - - prevSib.textContent += nextSib.textContent; - marker.parentNode.removeChild(nextSib); - } - marker.parentNode.removeChild(marker); - } else if(marker.classList.contains("EPUBJS-CFI-MARKER")) { - // Remove only elements added as markers - marker.parentNode.removeChild(marker); - } - -}; - -EPUBJS.EpubCFI.prototype.findParent = function(cfi, _doc) { - var doc = _doc || document, - element = doc.getElementsByTagName('html')[0], - children = Array.prototype.slice.call(element.children), - num, index, part, sections, - text, textBegin, textEnd; - - if(typeof cfi === 'string') { - cfi = this.parse(cfi); - } - - sections = cfi.steps.slice(0); // Clone steps array - if(!sections.length) { - return doc.getElementsByTagName('body')[0]; - } - - while(sections && sections.length > 0) { - part = sections.shift(); - // Find textNodes Parent - if(part.type === "text") { - text = element.childNodes[part.index]; - element = text.parentNode || element; - // Find element by id if present - } else if(part.id){ - element = doc.getElementById(part.id); - // Find element in parent - }else{ - element = children[part.index]; - } - // Element can't be found - if(!element || typeof element === "undefined") { - console.error("No Element For", part, cfi.str); - return false; - } - // Get current element children and continue through steps - children = Array.prototype.slice.call(element.children); - } - - return element; -}; - -EPUBJS.EpubCFI.prototype.compare = function(cfiOne, cfiTwo) { - if(typeof cfiOne === 'string') { - cfiOne = new EPUBJS.EpubCFI(cfiOne); - } - if(typeof cfiTwo === 'string') { - cfiTwo = new EPUBJS.EpubCFI(cfiTwo); - } - // Compare Spine Positions - if(cfiOne.spinePos > cfiTwo.spinePos) { - return 1; - } - if(cfiOne.spinePos < cfiTwo.spinePos) { - return -1; - } - - - // Compare Each Step in the First item - for (var i = 0; i < cfiOne.steps.length; i++) { - if(!cfiTwo.steps[i]) { - return 1; - } - if(cfiOne.steps[i].index > cfiTwo.steps[i].index) { - return 1; - } - if(cfiOne.steps[i].index < cfiTwo.steps[i].index) { - return -1; - } - // Otherwise continue checking - } - - // All steps in First present in Second - if(cfiOne.steps.length < cfiTwo.steps.length) { - return -1; - } - - // Compare the character offset of the text node - if(cfiOne.characterOffset > cfiTwo.characterOffset) { - return 1; - } - if(cfiOne.characterOffset < cfiTwo.characterOffset) { - return -1; - } - - // CFI's are equal - return 0; -}; - -EPUBJS.EpubCFI.prototype.generateCfiFromHref = function(href, book) { - var uri = EPUBJS.core.uri(href); - var path = uri.path; - var fragment = uri.fragment; - var spinePos = book.spineIndexByURL[path]; - var loaded; - var deferred = new RSVP.defer(); - var epubcfi = new EPUBJS.EpubCFI(); - var spineItem; - - if(typeof spinePos !== "undefined"){ - spineItem = book.spine[spinePos]; - loaded = book.loadXml(spineItem.url); - loaded.then(function(doc){ - var element = doc.getElementById(fragment); - var cfi; - cfi = epubcfi.generateCfiFromElement(element, spineItem.cfiBase); - deferred.resolve(cfi); - }); - } - - return deferred.promise; -}; - -EPUBJS.EpubCFI.prototype.generateCfiFromTextNode = function(anchor, offset, base) { - var parent = anchor.parentNode; - var steps = this.pathTo(parent); - var path = this.generatePathComponent(steps); - var index = 1 + (2 * Array.prototype.indexOf.call(parent.childNodes, anchor)); - return "epubcfi(" + base + "!/" + path + "/"+index+":"+(offset || 0)+")"; -}; - -EPUBJS.EpubCFI.prototype.generateCfiFromRangeAnchor = function(range, base) { - var anchor = range.anchorNode; - var offset = range.anchorOffset; - return this.generateCfiFromTextNode(anchor, offset, base); -}; - -EPUBJS.EpubCFI.prototype.generateCfiFromRange = function(range, base) { - var start, startElement, startSteps, startPath, startOffset, startIndex; - var end, endElement, endSteps, endPath, endOffset, endIndex; - - start = range.startContainer; - - if(start.nodeType === 3) { // text node - startElement = start.parentNode; - //startIndex = 1 + (2 * Array.prototype.indexOf.call(startElement.childNodes, start)); - startIndex = 1 + (2 * EPUBJS.core.indexOfTextNode(start)); - startSteps = this.pathTo(startElement); - } else if(range.collapsed) { - return this.generateCfiFromElement(start, base); // single element - } else { - startSteps = this.pathTo(start); - } - - startPath = this.generatePathComponent(startSteps); - startOffset = range.startOffset; - - if(!range.collapsed) { - end = range.endContainer; - - if(end.nodeType === 3) { // text node - endElement = end.parentNode; - // endIndex = 1 + (2 * Array.prototype.indexOf.call(endElement.childNodes, end)); - endIndex = 1 + (2 * EPUBJS.core.indexOfTextNode(end)); - - endSteps = this.pathTo(endElement); - } else { - endSteps = this.pathTo(end); - } - - endPath = this.generatePathComponent(endSteps); - endOffset = range.endOffset; - - // Remove steps present in startPath - endPath = endPath.replace(startPath, ''); - - if (endPath.length) { - endPath = endPath + "/"; - } - - return "epubcfi(" + base + "!/" + startPath + "/" + startIndex + ":" + startOffset + "," + endPath + endIndex + ":" + endOffset + ")"; - - } else { - return "epubcfi(" + base + "!/" + startPath + "/"+ startIndex +":"+ startOffset +")"; - } -}; - -EPUBJS.EpubCFI.prototype.generateXpathFromSteps = function(steps) { - var xpath = [".", "*"]; - - steps.forEach(function(step){ - var position = step.index + 1; - - if(step.id){ - xpath.push("*[position()=" + position + " and @id='" + step.id + "']"); - } else if(step.type === "text") { - xpath.push("text()[" + position + "]"); - } else { - xpath.push("*[" + position + "]"); - } - }); - - return xpath.join("/"); -}; - -EPUBJS.EpubCFI.prototype.generateQueryFromSteps = function(steps) { - var query = ["html"]; - - steps.forEach(function(step){ - var position = step.index + 1; - - if(step.id){ - query.push("#" + step.id); - } else if(step.type === "text") { - // unsupported in querySelector - // query.push("text()[" + position + "]"); - } else { - query.push("*:nth-child(" + position + ")"); - } - }); - - return query.join(">"); -}; - - -EPUBJS.EpubCFI.prototype.generateRangeFromCfi = function(cfi, _doc) { - var doc = _doc || document; - var range = doc.createRange(); - var lastStep; - var xpath; - var startContainer; - var textLength; - var query; - var startContainerParent; - - if(typeof cfi === 'string') { - cfi = this.parse(cfi); - } - - // check spinePos - if(cfi.spinePos === -1) { - // Not a valid CFI - return false; - } - - // Get the terminal step - lastStep = cfi.steps[cfi.steps.length-1]; - - if(typeof document.evaluate != 'undefined') { - xpath = this.generateXpathFromSteps(cfi.steps); - startContainer = doc.evaluate(xpath, doc, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue; - } else { - // Get the query string - query = this.generateQueryFromSteps(cfi.steps); - // Find the containing element - startContainerParent = doc.querySelector(query); - // Find the text node within that element - if(startContainerParent && lastStep.type == "text") { - startContainer = startContainerParent.childNodes[lastStep.index]; - } - } - - if(!startContainer) { - return null; - } - - if(startContainer && cfi.characterOffset >= 0) { - textLength = startContainer.length; - - if(cfi.characterOffset < textLength) { - range.setStart(startContainer, cfi.characterOffset); - range.setEnd(startContainer, textLength ); - } else { - console.debug("offset greater than length:", cfi.characterOffset, textLength); - range.setStart(startContainer, textLength - 1 ); - range.setEnd(startContainer, textLength ); - } - } else if(startContainer) { - range.selectNode(startContainer); - } - // doc.defaultView.getSelection().addRange(range); - return range; -}; - -EPUBJS.EpubCFI.prototype.isCfiString = function(target) { - return typeof target === 'string' && target.indexOf('epubcfi(') === 0; -}; - -EPUBJS.Events = function(obj, el){ - - this.events = {}; - - if(!el){ - this.el = document.createElement('div'); - }else{ - this.el = el; - } - - obj.createEvent = this.createEvent; - obj.tell = this.tell; - obj.listen = this.listen; - obj.deafen = this.deafen; - obj.listenUntil = this.listenUntil; - - return this; -}; - -EPUBJS.Events.prototype.createEvent = function(evt){ - var e = new CustomEvent(evt); - this.events[evt] = e; - return e; -}; - -EPUBJS.Events.prototype.tell = function(evt, msg){ - var e; - - if(!this.events[evt]){ - console.warn("No event:", evt, "defined yet, creating."); - e = this.createEvent(evt); - }else{ - e = this.events[evt]; - } - - if(msg) e.msg = msg; - this.el.dispatchEvent(e); - -}; - -EPUBJS.Events.prototype.listen = function(evt, func, bindto){ - if(!this.events[evt]){ - console.warn("No event:", evt, "defined yet, creating."); - this.createEvent(evt); - return; - } - - if(bindto){ - this.el.addEventListener(evt, func.bind(bindto), false); - }else{ - this.el.addEventListener(evt, func, false); - } - -}; - -EPUBJS.Events.prototype.deafen = function(evt, func){ - this.el.removeEventListener(evt, func, false); -}; - -EPUBJS.Events.prototype.listenUntil = function(OnEvt, OffEvt, func, bindto){ - this.listen(OnEvt, func, bindto); - - function unlisten(){ - this.deafen(OnEvt, func); - this.deafen(OffEvt, unlisten); - } - - this.listen(OffEvt, unlisten, this); -}; -EPUBJS.hooks = {}; -EPUBJS.Hooks = (function(){ - function hooks(){} - - //-- Get pre-registered hooks - hooks.prototype.getHooks = function(){ - var plugs; - this.hooks = {}; - Array.prototype.slice.call(arguments).forEach(function(arg){ - this.hooks[arg] = []; - }, this); - - for (var plugType in this.hooks) { - plugs = EPUBJS.core.values(EPUBJS.hooks[plugType]); - - plugs.forEach(function(hook){ - this.registerHook(plugType, hook); - }, this); - } - }; - - //-- Hooks allow for injecting async functions that must all complete before continuing - // Functions must have a callback as their first argument. - hooks.prototype.registerHook = function(type, toAdd, toFront){ - - if(typeof(this.hooks[type]) != "undefined"){ - - if(typeof(toAdd) === "function"){ - if(toFront) { - this.hooks[type].unshift(toAdd); - }else{ - this.hooks[type].push(toAdd); - } - }else if(Array.isArray(toAdd)){ - toAdd.forEach(function(hook){ - if(toFront) { - this.hooks[type].unshift(hook); - }else{ - this.hooks[type].push(hook); - } - }, this); - } - }else{ - //-- Allows for undefined hooks - this.hooks[type] = [toAdd]; - - if(typeof(toAdd) === "function"){ - this.hooks[type] = [toAdd]; - }else if(Array.isArray(toAdd)){ - this.hooks[type] = []; - toAdd.forEach(function(hook){ - this.hooks[type].push(hook); - }, this); - } - - } - }; - - hooks.prototype.removeHook = function(type, toRemove){ - var index; - - if(typeof(this.hooks[type]) != "undefined"){ - - if(typeof(toRemove) === "function"){ - index = this.hooks[type].indexOf(toRemove); - if (index > -1) { - this.hooks[type].splice(index, 1); - } - }else if(Array.isArray(toRemove)){ - toRemove.forEach(function(hook){ - index = this.hooks[type].indexOf(hook); - if (index > -1) { - this.hooks[type].splice(index, 1); - } - }, this); - } - } - }; - - hooks.prototype.triggerHooks = function(type, callback, passed){ - var hooks, count; - - if(typeof(this.hooks[type]) == "undefined") return false; - - hooks = this.hooks[type]; - - count = hooks.length; - if(count === 0 && callback) { - callback(); - } - - function countdown(){ - count--; - if(count <= 0 && callback) callback(); - } - - hooks.forEach(function(hook){ - hook(countdown, passed); - }); - }; - - return { - register: function(name) { - if(EPUBJS.hooks[name] === undefined) { EPUBJS.hooks[name] = {}; } - if(typeof EPUBJS.hooks[name] !== 'object') { throw "Already registered: "+name; } - return EPUBJS.hooks[name]; - }, - mixin: function(object) { - for (var prop in hooks.prototype) { - object[prop] = hooks.prototype[prop]; - } - } - }; -})(); - -EPUBJS.Layout = EPUBJS.Layout || {}; - -// EPUB2 documents won't provide us with "rendition:layout", so this is used to -// duck type the documents instead. -EPUBJS.Layout.isFixedLayout = function (documentElement) { - var viewport = documentElement.querySelector("[name=viewport]"); - if (!viewport || !viewport.hasAttribute("content")) { - return false; - } - var content = viewport.getAttribute("content"); - return (/width=(\d+)/.test(content) && /height=(\d+)/.test(content)); -}; - -EPUBJS.Layout.Reflowable = function(){ - this.documentElement = null; - this.spreadWidth = null; -}; - -EPUBJS.Layout.Reflowable.prototype.format = function(documentElement, _width, _height, _gap){ - // Get the prefixed CSS commands - var columnAxis = EPUBJS.core.prefixed('columnAxis'); - var columnGap = EPUBJS.core.prefixed('columnGap'); - var columnWidth = EPUBJS.core.prefixed('columnWidth'); - var columnFill = EPUBJS.core.prefixed('columnFill'); - - //-- Check the width and create even width columns - var width = Math.floor(_width); - // var width = (fullWidth % 2 === 0) ? fullWidth : fullWidth - 0; // Not needed for single - var section = Math.floor(width / 8); - var gap = (_gap >= 0) ? _gap : ((section % 2 === 0) ? section : section - 1); - this.documentElement = documentElement; - //-- Single Page - this.spreadWidth = (width + gap); - - - documentElement.style.overflow = "hidden"; - - // Must be set to the new calculated width or the columns will be off - documentElement.style.width = width + "px"; - - //-- Adjust height - documentElement.style.height = _height + "px"; - - //-- Add columns - documentElement.style[columnAxis] = "horizontal"; - documentElement.style[columnFill] = "auto"; - documentElement.style[columnWidth] = width+"px"; - documentElement.style[columnGap] = gap+"px"; - this.colWidth = width; - this.gap = gap; - - return { - pageWidth : this.spreadWidth, - pageHeight : _height - }; -}; - -EPUBJS.Layout.Reflowable.prototype.calculatePages = function() { - var totalWidth, displayedPages; - this.documentElement.style.width = "auto"; //-- reset width for calculations - totalWidth = this.documentElement.scrollWidth; - displayedPages = Math.ceil(totalWidth / this.spreadWidth); - - return { - displayedPages : displayedPages, - pageCount : displayedPages - }; -}; - -EPUBJS.Layout.ReflowableSpreads = function(){ - this.documentElement = null; - this.spreadWidth = null; -}; - -EPUBJS.Layout.ReflowableSpreads.prototype.format = function(documentElement, _width, _height, _gap){ - var columnAxis = EPUBJS.core.prefixed('columnAxis'); - var columnGap = EPUBJS.core.prefixed('columnGap'); - var columnWidth = EPUBJS.core.prefixed('columnWidth'); - var columnFill = EPUBJS.core.prefixed('columnFill'); - - var divisor = 2, - cutoff = 800; - - //-- Check the width and create even width columns - var fullWidth = Math.floor(_width); - var width = (fullWidth % 2 === 0) ? fullWidth : fullWidth - 1; - - var section = Math.floor(width / 8); - var gap = (_gap >= 0) ? _gap : ((section % 2 === 0) ? section : section - 1); - - //-- Double Page - var colWidth = Math.floor((width - gap) / divisor); - - this.documentElement = documentElement; - this.spreadWidth = (colWidth + gap) * divisor; - - - documentElement.style.overflow = "hidden"; - - // Must be set to the new calculated width or the columns will be off - documentElement.style.width = width + "px"; - - //-- Adjust height - documentElement.style.height = _height + "px"; - - //-- Add columns - documentElement.style[columnAxis] = "horizontal"; - documentElement.style[columnFill] = "auto"; - documentElement.style[columnGap] = gap+"px"; - documentElement.style[columnWidth] = colWidth+"px"; - - this.colWidth = colWidth; - this.gap = gap; - return { - pageWidth : this.spreadWidth, - pageHeight : _height - }; -}; - -EPUBJS.Layout.ReflowableSpreads.prototype.calculatePages = function() { - var totalWidth = this.documentElement.scrollWidth; - var displayedPages = Math.ceil(totalWidth / this.spreadWidth); - - //-- Add a page to the width of the document to account an for odd number of pages - this.documentElement.style.width = ((displayedPages * this.spreadWidth) - this.gap) + "px"; - - return { - displayedPages : displayedPages, - pageCount : displayedPages * 2 - }; -}; - -EPUBJS.Layout.Fixed = function(){ - this.documentElement = null; -}; - -EPUBJS.Layout.Fixed.prototype.format = function(documentElement, _width, _height, _gap){ - var columnWidth = EPUBJS.core.prefixed('columnWidth'); - var transform = EPUBJS.core.prefixed('transform'); - var transformOrigin = EPUBJS.core.prefixed('transformOrigin'); - var viewport = documentElement.querySelector("[name=viewport]"); - var content; - var contents; - var width, height; - this.documentElement = documentElement; - /** - * check for the viewport size - * - */ - if(viewport && viewport.hasAttribute("content")) { - content = viewport.getAttribute("content"); - contents = content.split(','); - if(contents[0]){ - width = contents[0].replace("width=", ''); - } - if(contents[1]){ - height = contents[1].replace("height=", ''); - } - } - - //-- Scale fixed documents so their contents don't overflow, and - // vertically and horizontally center the contents - var widthScale = _width / width; - var heightScale = _height / height; - var scale = widthScale < heightScale ? widthScale : heightScale; - documentElement.style.position = "absolute"; - documentElement.style.top = "50%"; - documentElement.style.left = "50%"; - documentElement.style[transform] = "scale(" + scale + ") translate(-50%, -50%)"; - documentElement.style[transformOrigin] = "0px 0px 0px"; - - //-- Adjust width and height - documentElement.style.width = width + "px" || "auto"; - documentElement.style.height = height + "px" || "auto"; - - //-- Remove columns - documentElement.style[columnWidth] = "auto"; - - //-- Scroll - documentElement.style.overflow = "auto"; - - this.colWidth = width; - this.gap = 0; - - return { - pageWidth : width, - pageHeight : height - }; - -}; - -EPUBJS.Layout.Fixed.prototype.calculatePages = function(){ - return { - displayedPages : 1, - pageCount : 1 - }; -}; - -EPUBJS.Locations = function(spine, store, credentials) { - this.spine = spine; - this.store = store; - this.credentials = credentials; - - this.epubcfi = new EPUBJS.EpubCFI(); - - this._locations = []; - this.total = 0; - - this.break = 150; - - this._current = 0; - -}; - -EPUBJS.Locations.prototype.generate = function(chars) { - var deferred = new RSVP.defer(); - var spinePos = -1; - var spineLength = this.spine.length; - var finished; - var nextChapter = function(deferred){ - var chapter; - var next = spinePos + 1; - var done = deferred || new RSVP.defer(); - var loaded; - if(next >= spineLength) { - done.resolve(); - } else { - spinePos = next; - chapter = new EPUBJS.Chapter(this.spine[spinePos], this.store, this.credentials); - - this.process(chapter).then(function() { - // Load up the next chapter - setTimeout(function(){ - nextChapter(done); - }, 1); - - }); - } - return done.promise; - }.bind(this); - - if(typeof chars === 'number') { - this.break = chars; - } - - finished = nextChapter().then(function(){ - this.total = this._locations.length-1; - - if (this._currentCfi) { - this.currentLocation = this._currentCfi; - } - deferred.resolve(this._locations); - }.bind(this)); - - return deferred.promise; -}; - -EPUBJS.Locations.prototype.process = function(chapter) { - return chapter.load() - .then(function(_doc) { - - var range; - var doc = _doc; - var contents = doc.documentElement.querySelector("body"); - var counter = 0; - var prev; - var cfi; - var _break = this.break; - - this.sprint(contents, function(node) { - var len = node.length; - var dist; - var pos = 0; - - if (node.textContent.trim().length === 0) { - return false; // continue - } - - // Start range - if (counter === 0) { - range = doc.createRange(); - range.setStart(node, 0); - } - - dist = _break - counter; - - // Node is smaller than a break - if(dist > len){ - counter += len; - pos = len; - } - - while (pos < len) { - dist = _break - counter; - - if (counter === 0) { - pos += 1; - range = doc.createRange(); - range.setStart(node, pos); - } - - // Gone over - if(pos + dist >= len){ - // Continue counter for next node - counter += len - pos; - // break - pos = len; - // At End - } else { - // Advance pos - pos += dist; - - // End the previous range - range.setEnd(node, pos); - cfi = chapter.cfiFromRange(range); - this._locations.push(cfi); - counter = 0; - } - } - - prev = node; - - }.bind(this)); - - // Close remaining - if (range) { - range.setEnd(prev, prev.length); - cfi = chapter.cfiFromRange(range); - this._locations.push(cfi); - counter = 0; - } - - }.bind(this)); - -}; - -EPUBJS.Locations.prototype.sprint = function(root, func) { - var node; - var treeWalker = document.createTreeWalker(root, NodeFilter.SHOW_TEXT, null, false); - - while ((node = treeWalker.nextNode())) { - func(node); - } - -}; - -EPUBJS.Locations.prototype.locationFromCfi = function(cfi){ - // Check if the location has not been set yet - if(this._locations.length === 0) { - return -1; - } - - return EPUBJS.core.locationOf(cfi, this._locations, this.epubcfi.compare); -}; - -EPUBJS.Locations.prototype.percentageFromCfi = function(cfi) { - // Find closest cfi - var loc = this.locationFromCfi(cfi); - // Get percentage in total - return this.percentageFromLocation(loc); -}; - -EPUBJS.Locations.prototype.percentageFromLocation = function(loc) { - if (!loc || !this.total) { - return 0; - } - return (loc / this.total); -}; - -EPUBJS.Locations.prototype.cfiFromLocation = function(loc){ - var cfi = -1; - // check that pg is an int - if(typeof loc != "number"){ - loc = parseInt(loc); - } - - if(loc >= 0 && loc < this._locations.length) { - cfi = this._locations[loc]; - } - - return cfi; -}; - -EPUBJS.Locations.prototype.cfiFromPercentage = function(value){ - var percentage = (value > 1) ? value / 100 : value; // Normalize value to 0-1 - var loc = Math.ceil(this.total * percentage); - - return this.cfiFromLocation(loc); -}; - -EPUBJS.Locations.prototype.load = function(locations){ - this._locations = JSON.parse(locations); - this.total = this._locations.length-1; - return this._locations; -}; - -EPUBJS.Locations.prototype.save = function(json){ - return JSON.stringify(this._locations); -}; - -EPUBJS.Locations.prototype.getCurrent = function(json){ - return this._current; -}; - -EPUBJS.Locations.prototype.setCurrent = function(curr){ - var loc; - - if(typeof curr == "string"){ - this._currentCfi = curr; - } else if (typeof curr == "number") { - this._current = curr; - } else { - return; - } - - if(this._locations.length === 0) { - return; - } - - if(typeof curr == "string"){ - loc = this.locationFromCfi(curr); - this._current = loc; - } else { - loc = curr; - } - - this.trigger("changed", { - percentage: this.percentageFromLocation(loc) - }); -}; - -Object.defineProperty(EPUBJS.Locations.prototype, 'currentLocation', { - get: function () { - return this._current; - }, - set: function (curr) { - this.setCurrent(curr); - } -}); - -RSVP.EventTarget.mixin(EPUBJS.Locations.prototype); - -EPUBJS.Pagination = function(pageList) { - this.pages = []; - this.locations = []; - this.epubcfi = new EPUBJS.EpubCFI(); - if(pageList && pageList.length) { - this.process(pageList); - } -}; - -EPUBJS.Pagination.prototype.process = function(pageList){ - pageList.forEach(function(item){ - this.pages.push(item.page); - this.locations.push(item.cfi); - }, this); - - this.pageList = pageList; - this.firstPage = parseInt(this.pages[0]); - this.lastPage = parseInt(this.pages[this.pages.length-1]); - this.totalPages = this.lastPage - this.firstPage; -}; - -EPUBJS.Pagination.prototype.pageFromCfi = function(cfi){ - var pg = -1; - - // Check if the pageList has not been set yet - if(this.locations.length === 0) { - return -1; - } - - // TODO: check if CFI is valid? - - // check if the cfi is in the location list - // var index = this.locations.indexOf(cfi); - var index = EPUBJS.core.indexOfSorted(cfi, this.locations, this.epubcfi.compare); - if(index != -1) { - pg = this.pages[index]; - } else { - // Otherwise add it to the list of locations - // Insert it in the correct position in the locations page - //index = EPUBJS.core.insert(cfi, this.locations, this.epubcfi.compare); - index = EPUBJS.core.locationOf(cfi, this.locations, this.epubcfi.compare); - // Get the page at the location just before the new one, or return the first - pg = index-1 >= 0 ? this.pages[index-1] : this.pages[0]; - if(pg !== undefined) { - // Add the new page in so that the locations and page array match up - //this.pages.splice(index, 0, pg); - } else { - pg = -1; - } - - } - return pg; -}; - -EPUBJS.Pagination.prototype.cfiFromPage = function(pg){ - var cfi = -1; - // check that pg is an int - if(typeof pg != "number"){ - pg = parseInt(pg); - } - - // check if the cfi is in the page list - // Pages could be unsorted. - var index = this.pages.indexOf(pg); - if(index != -1) { - cfi = this.locations[index]; - } - // TODO: handle pages not in the list - return cfi; -}; - -EPUBJS.Pagination.prototype.pageFromPercentage = function(percent){ - var pg = Math.round(this.totalPages * percent); - return pg; -}; - -// Returns a value between 0 - 1 corresponding to the location of a page -EPUBJS.Pagination.prototype.percentageFromPage = function(pg){ - var percentage = (pg - this.firstPage) / this.totalPages; - return Math.round(percentage * 1000) / 1000; -}; - -// Returns a value between 0 - 1 corresponding to the location of a cfi -EPUBJS.Pagination.prototype.percentageFromCfi = function(cfi){ - var pg = this.pageFromCfi(cfi); - var percentage = this.percentageFromPage(pg); - return percentage; -}; -EPUBJS.Parser = function(baseUrl){ - this.baseUrl = baseUrl || ''; -}; - -EPUBJS.Parser.prototype.container = function(containerXml){ - //-- - var rootfile, fullpath, folder, encoding; - - if(!containerXml) { - console.error("Container File Not Found"); - return; - } - - rootfile = containerXml.querySelector("rootfile"); - - if(!rootfile) { - console.error("No RootFile Found"); - return; - } - - fullpath = rootfile.getAttribute('full-path'); - folder = EPUBJS.core.uri(fullpath).directory; - encoding = containerXml.xmlEncoding; - - //-- Now that we have the path we can parse the contents - return { - 'packagePath' : fullpath, - 'basePath' : folder, - 'encoding' : encoding - }; -}; - -EPUBJS.Parser.prototype.identifier = function(packageXml){ - var metadataNode; - - if(!packageXml) { - console.error("Package File Not Found"); - return; - } - - metadataNode = packageXml.querySelector("metadata"); - - if(!metadataNode) { - console.error("No Metadata Found"); - return; - } - - return this.getElementText(metadataNode, "identifier"); -}; - -EPUBJS.Parser.prototype.packageContents = function(packageXml, baseUrl){ - var parse = this; - var metadataNode, manifestNode, spineNode; - var manifest, navPath, tocPath, coverPath; - var spineNodeIndex; - var spine; - var spineIndexByURL; - var metadata; - - if(baseUrl) this.baseUrl = baseUrl; - - if(!packageXml) { - console.error("Package File Not Found"); - return; - } - - metadataNode = packageXml.querySelector("metadata"); - if(!metadataNode) { - console.error("No Metadata Found"); - return; - } - - manifestNode = packageXml.querySelector("manifest"); - if(!manifestNode) { - console.error("No Manifest Found"); - return; - } - - spineNode = packageXml.querySelector("spine"); - if(!spineNode) { - console.error("No Spine Found"); - return; - } - - manifest = parse.manifest(manifestNode); - navPath = parse.findNavPath(manifestNode); - tocPath = parse.findTocPath(manifestNode, spineNode); - coverPath = parse.findCoverPath(packageXml); - - spineNodeIndex = Array.prototype.indexOf.call(spineNode.parentNode.childNodes, spineNode); - - spine = parse.spine(spineNode, manifest); - - spineIndexByURL = {}; - spine.forEach(function(item){ - spineIndexByURL[item.href] = item.index; - }); - - metadata = parse.metadata(metadataNode); - - metadata.direction = spineNode.getAttribute("page-progression-direction"); - - return { - 'metadata' : metadata, - 'spine' : spine, - 'manifest' : manifest, - 'navPath' : navPath, - 'tocPath' : tocPath, - 'coverPath': coverPath, - 'spineNodeIndex' : spineNodeIndex, - 'spineIndexByURL' : spineIndexByURL - }; -}; - -//-- Find TOC NAV -EPUBJS.Parser.prototype.findNavPath = function(manifestNode){ - // Find item with property 'nav' - // Should catch nav irregardless of order - var node = manifestNode.querySelector("item[properties$='nav'], item[properties^='nav '], item[properties*=' nav ']"); - return node ? node.getAttribute('href') : false; -}; - -//-- Find TOC NCX: media-type="application/x-dtbncx+xml" href="toc.ncx" -EPUBJS.Parser.prototype.findTocPath = function(manifestNode, spineNode){ - var node = manifestNode.querySelector("item[media-type='application/x-dtbncx+xml']"); - var tocId; - - // If we can't find the toc by media-type then try to look for id of the item in the spine attributes as - // according to http://www.idpf.org/epub/20/spec/OPF_2.0.1_draft.htm#Section2.4.1.2, - // "The item that describes the NCX must be referenced by the spine toc attribute." - if (!node) { - tocId = spineNode.getAttribute("toc"); - if(tocId) { - node = manifestNode.querySelector("item[id='" + tocId + "']"); - } - } - - return node ? node.getAttribute('href') : false; -}; - -//-- Expanded to match Readium web components -EPUBJS.Parser.prototype.metadata = function(xml){ - var metadata = {}, - p = this; - - metadata.bookTitle = p.getElementText(xml, 'title'); - metadata.creator = p.getElementText(xml, 'creator'); - metadata.description = p.getElementText(xml, 'description'); - - metadata.pubdate = p.getElementText(xml, 'date'); - - metadata.publisher = p.getElementText(xml, 'publisher'); - - metadata.identifier = p.getElementText(xml, "identifier"); - metadata.language = p.getElementText(xml, "language"); - metadata.rights = p.getElementText(xml, "rights"); - - metadata.modified_date = p.querySelectorText(xml, "meta[property='dcterms:modified']"); - metadata.layout = p.querySelectorText(xml, "meta[property='rendition:layout']"); - metadata.orientation = p.querySelectorText(xml, "meta[property='rendition:orientation']"); - metadata.spread = p.querySelectorText(xml, "meta[property='rendition:spread']"); - - return metadata; -}; - -//-- Find Cover: -//-- Fallback for Epub 2.0 -EPUBJS.Parser.prototype.findCoverPath = function(packageXml){ - - var epubVersion = packageXml.querySelector('package').getAttribute('version'); - if (epubVersion === '2.0') { - var metaCover = packageXml.querySelector('meta[name="cover"]'); - if (metaCover) { - var coverId = metaCover.getAttribute('content'); - var cover = packageXml.querySelector("item[id='" + coverId + "']"); - return cover ? cover.getAttribute('href') : false; - } - else { - return false; - } - } - else { - var node = packageXml.querySelector("item[properties='cover-image']"); - return node ? node.getAttribute('href') : false; - } -}; - -EPUBJS.Parser.prototype.getElementText = function(xml, tag){ - var found = xml.getElementsByTagNameNS("http://purl.org/dc/elements/1.1/", tag), - el; - - if(!found || found.length === 0) return ''; - - el = found[0]; - - if(el.childNodes.length){ - return el.childNodes[0].nodeValue; - } - - return ''; - -}; - -EPUBJS.Parser.prototype.querySelectorText = function(xml, q){ - var el = xml.querySelector(q); - - if(el && el.childNodes.length){ - return el.childNodes[0].nodeValue; - } - - return ''; -}; - -EPUBJS.Parser.prototype.manifest = function(manifestXml){ - var baseUrl = this.baseUrl, - manifest = {}; - - //-- Turn items into an array - var selected = manifestXml.querySelectorAll("item"), - items = Array.prototype.slice.call(selected); - - //-- Create an object with the id as key - items.forEach(function(item){ - var id = item.getAttribute('id'), - href = item.getAttribute('href') || '', - type = item.getAttribute('media-type') || '', - properties = item.getAttribute('properties') || ''; - - manifest[id] = { - 'href' : href, - 'url' : baseUrl + href, //-- Absolute URL for loading with a web worker - 'type' : type, - 'properties' : properties - }; - - }); - - return manifest; - -}; - -EPUBJS.Parser.prototype.spine = function(spineXml, manifest){ - var selected = spineXml.getElementsByTagName("itemref"), - items = Array.prototype.slice.call(selected); - - // var spineNodeIndex = Array.prototype.indexOf.call(spineXml.parentNode.childNodes, spineXml); - var spineNodeIndex = EPUBJS.core.indexOfElementNode(spineXml); - - var epubcfi = new EPUBJS.EpubCFI(); - - //-- Add to array to mantain ordering and cross reference with manifest - return items.map(function(item, index) { - var Id = item.getAttribute('idref'); - var cfiBase = epubcfi.generateChapterComponent(spineNodeIndex, index, Id); - var props = item.getAttribute('properties') || ''; - var propArray = props.length ? props.split(' ') : []; - var manifestProps = manifest[Id].properties; - var manifestPropArray = manifestProps.length ? manifestProps.split(' ') : []; - return { - 'id' : Id, - 'linear' : item.getAttribute('linear') || '', - 'properties' : propArray, - 'manifestProperties' : manifestPropArray, - 'href' : manifest[Id].href, - 'url' : manifest[Id].url, - 'index' : index, - 'cfiBase' : cfiBase, - 'cfi' : "epubcfi(" + cfiBase + ")" - }; - }); -}; - -EPUBJS.Parser.prototype.querySelectorByType = function(html, element, type){ - var query = html.querySelector(element+'[*|type="'+type+'"]'); - // Handle IE not supporting namespaced epub:type in querySelector - if(query === null || query.length === 0) { - query = html.querySelectorAll(element); - for (var i = 0; i < query.length; i++) { - if(query[i].getAttributeNS("http://www.idpf.org/2007/ops", "type") === type) { - return query[i]; - } - } - } else { - return query; - } -}; - -EPUBJS.Parser.prototype.nav = function (navHtml, spineIndexByURL, bookSpine) { - var toc = this.querySelectorByType(navHtml, 'nav', 'toc'); - return this.navItems(toc, spineIndexByURL, bookSpine); -}; - -EPUBJS.Parser.prototype.navItems = function (navNode, spineIndexByURL, bookSpine) { - if (!navNode) return []; - - var list = navNode.querySelector('ol'); - if (!list) return []; - - var items = list.childNodes, - result = []; - - Array.prototype.forEach.call(items, function (item) { - if (item.tagName !== 'li') return; - - var content = item.querySelector('a, span'), - href = content.getAttribute('href') || '', - label = content.textContent || '', - split = href.split('#'), - baseUrl = split[0], - spinePos = spineIndexByURL[baseUrl], - spineItem = bookSpine[spinePos], - cfi = spineItem ? spineItem.cfi : '', - subitems = this.navItems(item, spineIndexByURL, bookSpine); - - result.push({ - href: href, - label: label, - spinePos: spinePos, - subitems: subitems, - cfi: cfi - }); - }.bind(this)); - - return result; -}; - -EPUBJS.Parser.prototype.toc = function(tocXml, spineIndexByURL, bookSpine){ - var navPoints = tocXml.querySelectorAll("navMap navPoint"); - var length = navPoints.length; - var i; - var toc = {}; - var list = []; - var item, parent; - - if(!navPoints || length === 0) return list; - - for (i = 0; i < length; ++i) { - item = this.tocItem(navPoints[i], spineIndexByURL, bookSpine); - toc[item.id] = item; - if(!item.parent) { - list.push(item); - } else { - parent = toc[item.parent]; - parent.subitems.push(item); - } - } - - return list; -}; - -EPUBJS.Parser.prototype.tocItem = function(item, spineIndexByURL, bookSpine){ - var id = item.getAttribute('id') || false, - content = item.querySelector("content"), - src = content.getAttribute('src'), - navLabel = item.querySelector("navLabel"), - text = navLabel.textContent ? navLabel.textContent : "", - split = src.split("#"), - baseUrl = split[0], - spinePos = spineIndexByURL[baseUrl], - spineItem = bookSpine[spinePos], - subitems = [], - parentNode = item.parentNode, - parent, - cfi = spineItem ? spineItem.cfi : ''; - - if(parentNode && parentNode.nodeName === "navPoint") { - parent = parentNode.getAttribute('id'); - } - - if(!id) { - if(spinePos) { - spineItem = bookSpine[spinePos]; - id = spineItem.id; - cfi = spineItem.cfi; - } else { - id = 'epubjs-autogen-toc-id-' + EPUBJS.core.uuid(); - item.setAttribute('id', id); - } - } - - return { - "id": id, - "href": src, - "label": text, - "spinePos": spinePos, - "subitems" : subitems, - "parent" : parent, - "cfi" : cfi - }; -}; - - -EPUBJS.Parser.prototype.pageList = function(navHtml, spineIndexByURL, bookSpine){ - var navElement = this.querySelectorByType(navHtml, "nav", "page-list"); - var navItems = navElement ? navElement.querySelectorAll("ol li") : []; - var length = navItems.length; - var i; - var toc = {}; - var list = []; - var item; - - if(!navItems || length === 0) return list; - - for (i = 0; i < length; ++i) { - item = this.pageListItem(navItems[i], spineIndexByURL, bookSpine); - list.push(item); - } - - return list; -}; - -EPUBJS.Parser.prototype.pageListItem = function(item, spineIndexByURL, bookSpine){ - var id = item.getAttribute('id') || false, - content = item.querySelector("a"), - href = content.getAttribute('href') || '', - text = content.textContent || "", - page = parseInt(text), - isCfi = href.indexOf("epubcfi"), - split, - packageUrl, - cfi; - - if(isCfi != -1) { - split = href.split("#"); - packageUrl = split[0]; - cfi = split.length > 1 ? split[1] : false; - return { - "cfi" : cfi, - "href" : href, - "packageUrl" : packageUrl, - "page" : page - }; - } else { - return { - "href" : href, - "page" : page - }; - } -}; - -EPUBJS.Render.Iframe = function() { - this.iframe = null; - this.document = null; - this.window = null; - this.docEl = null; - this.bodyEl = null; - - this.leftPos = 0; - this.pageWidth = 0; - this.id = EPUBJS.core.uuid(); -}; - -//-- Build up any html needed -EPUBJS.Render.Iframe.prototype.create = function(){ - this.element = document.createElement('div'); - this.element.id = "epubjs-view:" + this.id; - - this.isMobile = navigator.userAgent.match(/(iPad|iPhone|iPod|Mobile|Android)/g); - this.transform = EPUBJS.core.prefixed('transform'); - - return this.element; -}; - -EPUBJS.Render.Iframe.prototype.addIframe = function(){ - this.iframe = document.createElement('iframe'); - this.iframe.id = "epubjs-iframe:" + this.id; - this.iframe.scrolling = this.scrolling || "no"; - this.iframe.seamless = "seamless"; - // Back up if seamless isn't supported - this.iframe.style.border = "none"; - - this.iframe.addEventListener("load", this.loaded.bind(this), false); - - if (this._width || this._height) { - this.iframe.height = this._height; - this.iframe.width = this._width; - } - return this.iframe; -}; - -/** -* Sets the source of the iframe with the given URL string -* Takes: Document Contents String -* Returns: promise with document element -*/ -EPUBJS.Render.Iframe.prototype.load = function(contents, url){ - var render = this, - deferred = new RSVP.defer(); - - if(this.window) { - this.unload(); - } - - if (this.iframe) { - this.element.removeChild(this.iframe); - } - - this.iframe = this.addIframe(); - this.element.appendChild(this.iframe); - - - this.iframe.onload = function(e) { - var title; - - render.document = render.iframe.contentDocument; - render.docEl = render.document.documentElement; - render.headEl = render.document.head; - render.bodyEl = render.document.body || render.document.querySelector("body"); - render.window = render.iframe.contentWindow; - - render.window.addEventListener("resize", render.resized.bind(render), false); - - // Reset the scroll position - render.leftPos = 0; - render.setLeft(0); - - //-- Clear Margins - if(render.bodyEl) { - render.bodyEl.style.margin = "0"; - } - - deferred.resolve(render.docEl); - }; - - this.iframe.onerror = function(e) { - //console.error("Error Loading Contents", e); - deferred.reject({ - message : "Error Loading Contents: " + e, - stack : new Error().stack - }); - }; - - // this.iframe.contentWindow.location.replace(url); - this.document = this.iframe.contentDocument; - - if(!this.document) { - deferred.reject(new Error("No Document Available")); - return deferred.promise; - } - - this.iframe.contentDocument.open(); - this.iframe.contentDocument.write(contents); - this.iframe.contentDocument.close(); - - return deferred.promise; -}; - - -EPUBJS.Render.Iframe.prototype.loaded = function(v){ - var url = this.iframe.contentWindow.location.href; - var baseEl, base; - - this.document = this.iframe.contentDocument; - this.docEl = this.document.documentElement; - this.headEl = this.document.head; - this.bodyEl = this.document.body || this.document.querySelector("body"); - this.window = this.iframe.contentWindow; - this.window.focus(); - - if(url != "about:blank"){ - baseEl = this.iframe.contentDocument.querySelector("base"); - base = baseEl.getAttribute('href'); - this.trigger("render:loaded", base); - } - -}; - -// Resize the iframe to the given width and height -EPUBJS.Render.Iframe.prototype.resize = function(width, height){ - var iframeBox; - - if(!this.element) return; - - this.element.style.height = height; - - - if(!isNaN(width) && width % 2 !== 0){ - width += 1; //-- Prevent cutting off edges of text in columns - } - - this.element.style.width = width; - - if (this.iframe) { - this.iframe.height = height; - this.iframe.width = width; - } - - // Set the width for the iframe - this._height = height; - this._width = width; - - // Get the fractional height and width of the iframe - // Default to orginal if bounding rect is 0 - this.width = this.element.getBoundingClientRect().width || width; - this.height = this.element.getBoundingClientRect().height || height; - -}; - - -EPUBJS.Render.Iframe.prototype.resized = function(e){ - // Get the fractional height and width of the iframe - this.width = this.iframe.getBoundingClientRect().width; - this.height = this.iframe.getBoundingClientRect().height; -}; - -EPUBJS.Render.Iframe.prototype.totalWidth = function(){ - return this.docEl.scrollWidth; -}; - -EPUBJS.Render.Iframe.prototype.totalHeight = function(){ - return this.docEl.scrollHeight; -}; - -EPUBJS.Render.Iframe.prototype.setPageDimensions = function(pageWidth, pageHeight){ - this.pageWidth = pageWidth; - this.pageHeight = pageHeight; - //-- Add a page to the width of the document to account an for odd number of pages - // this.docEl.style.width = this.docEl.scrollWidth + pageWidth + "px"; -}; - -EPUBJS.Render.Iframe.prototype.setDirection = function(direction){ - - this.direction = direction; - - // Undo previous changes if needed - if(this.docEl && this.docEl.dir == "rtl"){ - this.docEl.dir = "rtl"; - if (this.layout !== "pre-paginated") { - this.docEl.style.position = "static"; - this.docEl.style.right = "auto"; - } - } - -}; - -EPUBJS.Render.Iframe.prototype.setLeft = function(leftPos){ - // this.bodyEl.style.marginLeft = -leftPos + "px"; - // this.docEl.style.marginLeft = -leftPos + "px"; - // this.docEl.style[EPUBJS.Render.Iframe.transform] = 'translate('+ (-leftPos) + 'px, 0)'; - - if (this.isMobile) { - this.docEl.style[this.transform] = 'translate('+ (-leftPos) + 'px, 0)'; - } else { - this.document.defaultView.scrollTo(leftPos, 0); - } - -}; - -EPUBJS.Render.Iframe.prototype.setLayout = function (layout) { - this.layout = layout; -}; - -EPUBJS.Render.Iframe.prototype.setStyle = function(style, val, prefixed){ - if(prefixed) { - style = EPUBJS.core.prefixed(style); - } - - if(this.bodyEl) this.bodyEl.style[style] = val; -}; - -EPUBJS.Render.Iframe.prototype.removeStyle = function(style){ - - if(this.bodyEl) this.bodyEl.style[style] = ''; - -}; - -EPUBJS.Render.Iframe.prototype.setClasses = function(classes){ - if(this.bodyEl) this.bodyEl.className = classes.join(" "); -}; - -EPUBJS.Render.Iframe.prototype.addHeadTag = function(tag, attrs, _doc) { - var doc = _doc || this.document; - var tagEl = doc.createElement(tag); - var headEl = doc.head; - - for(var attr in attrs) { - tagEl.setAttribute(attr, attrs[attr]); - } - - if(headEl) headEl.insertBefore(tagEl, headEl.firstChild); -}; - -EPUBJS.Render.Iframe.prototype.page = function(pg){ - this.leftPos = this.pageWidth * (pg-1); //-- pages start at 1 - - // Reverse for rtl langs - if(this.direction === "rtl"){ - this.leftPos = this.leftPos * -1; - } - - this.setLeft(this.leftPos); -}; - -//-- Show the page containing an Element -EPUBJS.Render.Iframe.prototype.getPageNumberByElement = function(el){ - var left, pg; - if(!el) return; - - left = this.leftPos + el.getBoundingClientRect().left; //-- Calculate left offset compaired to scrolled position - - pg = Math.floor(left / this.pageWidth) + 1; //-- pages start at 1 - - return pg; -}; - -//-- Show the page containing an Element -EPUBJS.Render.Iframe.prototype.getPageNumberByRect = function(boundingClientRect){ - var left, pg; - - left = this.leftPos + boundingClientRect.left; //-- Calculate left offset compaired to scrolled position - pg = Math.floor(left / this.pageWidth) + 1; //-- pages start at 1 - - return pg; -}; - -// Return the root element of the content -EPUBJS.Render.Iframe.prototype.getBaseElement = function(){ - return this.bodyEl; -}; - -// Return the document element -EPUBJS.Render.Iframe.prototype.getDocumentElement = function(){ - return this.docEl; -}; - -// Checks if an element is on the screen -EPUBJS.Render.Iframe.prototype.isElementVisible = function(el){ - var rect; - var left; - - if(el && typeof el.getBoundingClientRect === 'function'){ - rect = el.getBoundingClientRect(); - left = rect.left; //+ rect.width; - if( rect.width !== 0 && - rect.height !== 0 && // Element not visible - left >= 0 && - left < this.pageWidth ) { - return true; - } - } - - return false; -}; - - -EPUBJS.Render.Iframe.prototype.scroll = function(bool){ - if(bool) { - // this.iframe.scrolling = "yes"; - this.scrolling = "yes"; - } else { - this.scrolling = "no"; - // this.iframe.scrolling = "no"; - } -}; - -// Cleanup event listeners -EPUBJS.Render.Iframe.prototype.unload = function(){ - this.window.removeEventListener("resize", this.resized); - this.iframe.removeEventListener("load", this.loaded); -}; - -//-- Enable binding events to Render -RSVP.EventTarget.mixin(EPUBJS.Render.Iframe.prototype); - -EPUBJS.Renderer = function(renderMethod, hidden) { - // Dom events to listen for - this.listenedEvents = ["keydown", "keyup", "keypressed", "mouseup", "mousedown", "click"]; - this.upEvent = "mouseup"; - this.downEvent = "mousedown"; - if('ontouchstart' in document.documentElement) { - this.listenedEvents.push("touchstart", "touchend"); - this.upEvent = "touchend"; - this.downEvent = "touchstart"; - } - /** - * Setup a render method. - * Options are: Iframe - */ - if(renderMethod && typeof(EPUBJS.Render[renderMethod]) != "undefined"){ - this.render = new EPUBJS.Render[renderMethod](); - } else { - console.error("Not a Valid Rendering Method"); - } - - // Listen for load events - this.render.on("render:loaded", this.loaded.bind(this)); - - // Cached for replacement urls from storage - this.caches = {}; - - // Blank Cfi for Parsing - this.epubcfi = new EPUBJS.EpubCFI(); - - this.spreads = true; - this.isForcedSingle = false; - this.resized = this.onResized.bind(this); - - this.layoutSettings = {}; - - this.hidden = hidden || false; - //-- Adds Hook methods to the Book prototype - // Hooks will all return before triggering the callback. - EPUBJS.Hooks.mixin(this); - //-- Get pre-registered hooks for events - this.getHooks("beforeChapterDisplay"); - - //-- Queue up page changes if page map isn't ready - this._q = EPUBJS.core.queue(this); - - this._moving = false; - -}; - -//-- Renderer events for listening -EPUBJS.Renderer.prototype.Events = [ - "renderer:keydown", - "renderer:keyup", - "renderer:keypressed", - "renderer:mouseup", - "renderer:mousedown", - "renderer:click", - "renderer:touchstart", - "renderer:touchend", - "renderer:selected", - "renderer:chapterUnload", - "renderer:chapterUnloaded", - "renderer:chapterDisplayed", - "renderer:locationChanged", - "renderer:visibleLocationChanged", - "renderer:visibleRangeChanged", - "renderer:resized", - "renderer:spreads", - "renderer:beforeResize" -]; - -/** -* Creates an element to render to. -* Resizes to passed width and height or to the elements size -*/ -EPUBJS.Renderer.prototype.initialize = function(element, width, height){ - this.container = element; - this.element = this.render.create(); - - this.initWidth = width; - this.initHeight = height; - - this.width = width || this.container.clientWidth; - this.height = height || this.container.clientHeight; - - this.container.appendChild(this.element); - - if(width && height){ - this.render.resize(this.width, this.height); - } else { - this.render.resize('100%', '100%'); - } - - document.addEventListener("orientationchange", this.onResized.bind(this)); -}; - -/** -* Display a chapter -* Takes: chapter object, global layout settings -* Returns: Promise with passed Renderer after pages has loaded -*/ -EPUBJS.Renderer.prototype.displayChapter = function(chapter, globalLayout){ - var store = false; - if(this._moving) { - console.warning("Rendering In Progress"); - var deferred = new RSVP.defer(); - deferred.reject({ - message : "Rendering In Progress", - stack : new Error().stack - }); - return deferred.promise; - } - this._moving = true; - // Get the url string from the chapter (may be from storage) - return chapter.render(). - then(function(contents) { - - // Unload the previous chapter listener - if(this.currentChapter) { - this.trigger("renderer:chapterUnload"); - this.currentChapter.unload(); // Remove stored blobs - - if(this.render.window){ - this.render.window.removeEventListener("resize", this.resized); - } - - this.removeEventListeners(); - this.removeSelectionListeners(); - this.trigger("renderer:chapterUnloaded"); - this.contents = null; - this.doc = null; - this.pageMap = null; - } - - this.currentChapter = chapter; - - this.chapterPos = 1; - - this.currentChapterCfiBase = chapter.cfiBase; - - this.layoutSettings = this.reconcileLayoutSettings(globalLayout, chapter.properties); - - return this.load(contents, chapter.href); - - }.bind(this), function() { - this._moving = false; - }.bind(this)); - -}; - -/** -* Loads a url (string) and renders it, -* attaching event listeners and triggering hooks. -* Returns: Promise with the rendered contents. -*/ - -EPUBJS.Renderer.prototype.load = function(contents, url){ - var deferred = new RSVP.defer(); - var loaded; - - // Switch to the required layout method for the settings - this.layoutMethod = this.determineLayout(this.layoutSettings); - this.layout = new EPUBJS.Layout[this.layoutMethod](); - - this.visible(false); - - this.render.load(contents, url).then(function(contents) { - - // Duck-type fixed layout books. - if (EPUBJS.Layout.isFixedLayout(contents)) { - this.layoutSettings.layout = "pre-paginated"; - this.layoutMethod = this.determineLayout(this.layoutSettings); - this.layout = new EPUBJS.Layout[this.layoutMethod](); - } - this.render.setLayout(this.layoutSettings.layout); - - // HTML element must have direction set if RTL or columnns will - // not be in the correct direction in Firefox - // Firefox also need the html element to be position right - if(this.render.direction == "rtl" && this.render.docEl.dir != "rtl"){ - this.render.docEl.dir = "rtl"; - if (this.render.layout !== "pre-paginated") { - this.render.docEl.style.position = "absolute"; - this.render.docEl.style.right = "0"; - } - } - - this.afterLoad(contents); - - //-- Trigger registered hooks before displaying - this.beforeDisplay(function(){ - - this.afterDisplay(); - - this.visible(true); - - - deferred.resolve(this); //-- why does this return the renderer? - - }.bind(this)); - - }.bind(this)); - - return deferred.promise; -}; - -EPUBJS.Renderer.prototype.afterLoad = function(contents) { - var formated; - // this.currentChapter.setDocument(this.render.document); - this.contents = contents; - this.doc = this.render.document; - - // Format the contents using the current layout method - this.formated = this.layout.format(contents, this.render.width, this.render.height, this.gap); - this.render.setPageDimensions(this.formated.pageWidth, this.formated.pageHeight); - - // window.addEventListener("orientationchange", this.onResized.bind(this), false); - if(!this.initWidth && !this.initHeight){ - this.render.window.addEventListener("resize", this.resized, false); - } - - this.addEventListeners(); - this.addSelectionListeners(); - -}; - -EPUBJS.Renderer.prototype.afterDisplay = function(contents) { - - var pages = this.layout.calculatePages(); - var msg = this.currentChapter; - var queued = this._q.length(); - this._moving = false; - - this.updatePages(pages); - - this.visibleRangeCfi = this.getVisibleRangeCfi(); - this.currentLocationCfi = this.visibleRangeCfi.start; - - if(queued === 0) { - this.trigger("renderer:locationChanged", this.currentLocationCfi); - this.trigger("renderer:visibleRangeChanged", this.visibleRangeCfi); - } - - msg.cfi = this.currentLocationCfi; //TODO: why is this cfi passed to chapterDisplayed - this.trigger("renderer:chapterDisplayed", msg); - -}; - -EPUBJS.Renderer.prototype.loaded = function(url){ - this.trigger("render:loaded", url); - // var uri = EPUBJS.core.uri(url); - // var relative = uri.path.replace(book.bookUrl, ''); - // console.log(url, uri, relative); -}; - -/** -* Reconciles the current chapters layout properies with -* the global layout properities. -* Takes: global layout settings object, chapter properties string -* Returns: Object with layout properties -*/ -EPUBJS.Renderer.prototype.reconcileLayoutSettings = function(global, chapter){ - var settings = {}; - - //-- Get the global defaults - for (var attr in global) { - if (global.hasOwnProperty(attr)){ - settings[attr] = global[attr]; - } - } - //-- Get the chapter's display type - chapter.forEach(function(prop){ - var rendition = prop.replace("rendition:", ''); - var split = rendition.indexOf("-"); - var property, value; - - if(split != -1){ - property = rendition.slice(0, split); - value = rendition.slice(split+1); - - settings[property] = value; - } - }); - return settings; -}; - -/** -* Uses the settings to determine which Layout Method is needed -* Triggers events based on the method choosen -* Takes: Layout settings object -* Returns: String of appropriate for EPUBJS.Layout function -*/ -EPUBJS.Renderer.prototype.determineLayout = function(settings){ - // Default is layout: reflowable & spread: auto - var spreads = this.determineSpreads(this.minSpreadWidth); - var layoutMethod = spreads ? "ReflowableSpreads" : "Reflowable"; - var scroll = false; - - if(settings.layout === "pre-paginated") { - layoutMethod = "Fixed"; - scroll = true; - spreads = false; - } - - if(settings.layout === "reflowable" && settings.spread === "none") { - layoutMethod = "Reflowable"; - scroll = false; - spreads = false; - } - - if(settings.layout === "reflowable" && settings.spread === "both") { - layoutMethod = "ReflowableSpreads"; - scroll = false; - spreads = true; - } - - this.spreads = spreads; - this.render.scroll(scroll); - this.trigger("renderer:spreads", spreads); - return layoutMethod; -}; - -// Shortcut to trigger the hook before displaying the chapter -EPUBJS.Renderer.prototype.beforeDisplay = function(callback, renderer){ - this.triggerHooks("beforeChapterDisplay", callback, this); -}; - -// Update the renderer with the information passed by the layout -EPUBJS.Renderer.prototype.updatePages = function(layout){ - this.pageMap = this.mapPage(); - // this.displayedPages = layout.displayedPages; - - if (this.spreads) { - this.displayedPages = Math.ceil(this.pageMap.length / 2); - } else { - this.displayedPages = this.pageMap.length; - } - - this.currentChapter.pages = this.pageMap.length; - - this._q.flush(); -}; - -// Apply the layout again and jump back to the previous cfi position -EPUBJS.Renderer.prototype.reformat = function(){ - var renderer = this; - var formated, pages; - var spreads; - - if(!this.contents) return; - - spreads = this.determineSpreads(this.minSpreadWidth); - - // Only re-layout if the spreads have switched - if(spreads != this.spreads){ - this.spreads = spreads; - this.layoutMethod = this.determineLayout(this.layoutSettings); - this.layout = new EPUBJS.Layout[this.layoutMethod](); - } - - // Reset pages - this.chapterPos = 1; - - this.render.page(this.chapterPos); - // Give the css styles time to update - // clearTimeout(this.timeoutTillCfi); - // this.timeoutTillCfi = setTimeout(function(){ - renderer.formated = renderer.layout.format(renderer.render.docEl, renderer.render.width, renderer.render.height, renderer.gap); - renderer.render.setPageDimensions(renderer.formated.pageWidth, renderer.formated.pageHeight); - - pages = renderer.layout.calculatePages(); - renderer.updatePages(pages); - - //-- Go to current page after formating - if(renderer.currentLocationCfi){ - renderer.gotoCfi(renderer.currentLocationCfi); - } - // renderer.timeoutTillCfi = null; - -}; - -// Hide and show the render's container . -EPUBJS.Renderer.prototype.visible = function(bool){ - if(typeof(bool) === "undefined") { - return this.element.style.visibility; - } - - if(bool === true && !this.hidden){ - this.element.style.visibility = "visible"; - }else if(bool === false){ - this.element.style.visibility = "hidden"; - } -}; - -// Remove the render element and clean up listeners -EPUBJS.Renderer.prototype.remove = function() { - if(this.render.window) { - this.render.unload(); - this.render.window.removeEventListener("resize", this.resized); - this.removeEventListeners(); - this.removeSelectionListeners(); - } - - // clean container content - //this.container.innerHtml = ""; // not safe - this.container.removeChild(this.element); -}; - -//-- STYLES - -EPUBJS.Renderer.prototype.applyStyles = function(styles) { - for (var style in styles) { - this.render.setStyle(style, styles[style]); - } -}; - -EPUBJS.Renderer.prototype.setStyle = function(style, val, prefixed){ - this.render.setStyle(style, val, prefixed); -}; - -EPUBJS.Renderer.prototype.removeStyle = function(style){ - this.render.removeStyle(style); -}; - -EPUBJS.Renderer.prototype.setClasses = function(classes){ - this.render.setClasses(classes); -}; - -//-- HEAD TAGS -EPUBJS.Renderer.prototype.applyHeadTags = function(headTags) { - for ( var headTag in headTags ) { - this.render.addHeadTag(headTag, headTags[headTag]); - } -}; - -//-- NAVIGATION - -EPUBJS.Renderer.prototype.page = function(pg){ - if(!this.pageMap) { - console.warn("pageMap not set, queuing"); - this._q.enqueue("page", arguments); - return true; - } - - if(pg >= 1 && pg <= this.displayedPages){ - this.chapterPos = pg; - - this.render.page(pg); - this.visibleRangeCfi = this.getVisibleRangeCfi(); - this.currentLocationCfi = this.visibleRangeCfi.start; - this.trigger("renderer:locationChanged", this.currentLocationCfi); - this.trigger("renderer:visibleRangeChanged", this.visibleRangeCfi); - - return true; - } - //-- Return false if page is greater than the total - return false; -}; - -// Short cut to find next page's cfi starting at the last visible element -/* -EPUBJS.Renderer.prototype.nextPage = function(){ - var pg = this.chapterPos + 1; - if(pg <= this.displayedPages){ - this.chapterPos = pg; - - this.render.page(pg); - - this.currentLocationCfi = this.getPageCfi(this.visibileEl); - this.trigger("renderer:locationChanged", this.currentLocationCfi); - - return true; - } - //-- Return false if page is greater than the total - return false; -}; -*/ -EPUBJS.Renderer.prototype.nextPage = function(){ - return this.page(this.chapterPos + 1); -}; - -EPUBJS.Renderer.prototype.prevPage = function(){ - return this.page(this.chapterPos - 1); -}; - -//-- Show the page containing an Element -EPUBJS.Renderer.prototype.pageByElement = function(el){ - var pg; - if(!el) return; - - pg = this.render.getPageNumberByElement(el); - this.page(pg); -}; - -// Jump to the last page of the chapter -EPUBJS.Renderer.prototype.lastPage = function(){ - if(this._moving) { - return this._q.enqueue("lastPage", arguments); - } - - this.page(this.displayedPages); -}; - -// Jump to the first page of the chapter -EPUBJS.Renderer.prototype.firstPage = function(){ - if(this._moving) { - return this._q.enqueue("firstPage", arguments); - } - - this.page(1); -}; - -//-- Find a section by fragement id -EPUBJS.Renderer.prototype.section = function(fragment){ - var el = this.doc.getElementById(fragment); - - if(el){ - this.pageByElement(el); - } - -}; - -EPUBJS.Renderer.prototype.firstElementisTextNode = function(node) { - var children = node.childNodes; - var leng = children.length; - - if(leng && - children[0] && // First Child - children[0].nodeType === 3 && // This is a textNodes - children[0].textContent.trim().length) { // With non whitespace or return characters - return true; - } - return false; -}; - -EPUBJS.Renderer.prototype.isGoodNode = function(node) { - var embeddedElements = ["audio", "canvas", "embed", "iframe", "img", "math", "object", "svg", "video"]; - if (embeddedElements.indexOf(node.tagName.toLowerCase()) !== -1) { - // Embedded elements usually do not have a text node as first element, but are also good nodes - return true; - } - return this.firstElementisTextNode(node); -}; - -// Walk the node tree from a start element to next visible element -EPUBJS.Renderer.prototype.walk = function(node, x, y) { - var r, children, leng, - startNode = node, - prevNode, - stack = [startNode]; - - var STOP = 10000, ITER=0; - - while(!r && stack.length) { - node = stack.shift(); - if( this.containsPoint(node, x, y) && this.isGoodNode(node)) { - r = node; - } - - if(!r && node && node.childElementCount > 0){ - children = node.children; - if (children && children.length) { - leng = children.length ? children.length : 0; - } else { - return r; - } - for (var i = leng-1; i >= 0; i--) { - if(children[i] != prevNode) stack.unshift(children[i]); - } - } - - if(!r && stack.length === 0 && startNode && startNode.parentNode !== null){ - stack.push(startNode.parentNode); - prevNode = startNode; - startNode = startNode.parentNode; - } - - - ITER++; - if(ITER > STOP) { - console.error("ENDLESS LOOP"); - break; - } - - } - - return r; -}; - -// Checks if an element is on the screen -EPUBJS.Renderer.prototype.containsPoint = function(el, x, y){ - var rect; - var left; - if(el && typeof el.getBoundingClientRect === 'function'){ - rect = el.getBoundingClientRect(); - // console.log(el, rect, x, y); - - if( rect.width !== 0 && - rect.height !== 0 && // Element not visible - rect.left >= x && - x <= rect.left + rect.width) { - return true; - } - } - - return false; -}; - -EPUBJS.Renderer.prototype.textSprint = function(root, func) { - var filterEmpty = function(node){ - if ( ! /^\s*$/.test(node.data) ) { - return NodeFilter.FILTER_ACCEPT; - } else { - return NodeFilter.FILTER_REJECT; - } - }; - var treeWalker; - var node; - - try { - treeWalker = document.createTreeWalker(root, NodeFilter.SHOW_TEXT, { - acceptNode: filterEmpty - }, false); - while ((node = treeWalker.nextNode())) { - func(node); - } - } catch (e) { - // IE doesn't accept the object, just wants a function - // https://msdn.microsoft.com/en-us/library/ff974820(v=vs.85).aspx - treeWalker = document.createTreeWalker(root, NodeFilter.SHOW_TEXT, filterEmpty, false); - while ((node = treeWalker.nextNode())) { - func(node); - } - } - - - -}; - -EPUBJS.Renderer.prototype.sprint = function(root, func) { - var treeWalker = document.createTreeWalker(root, NodeFilter.SHOW_ELEMENT, null, false); - var node; - while ((node = treeWalker.nextNode())) { - func(node); - } - -}; - -EPUBJS.Renderer.prototype.mapPage = function(){ - var renderer = this; - var map = []; - var root = this.render.getBaseElement(); - var page = 1; - var width = this.layout.colWidth + this.layout.gap; - var offset = this.formated.pageWidth * (this.chapterPos-1); - var limit = (width * page) - offset;// (width * page) - offset; - var elLimit = 0; - var prevRange; - var prevRanges; - var cfi; - var lastChildren = null; - var prevElement; - var startRange, endRange; - var startCfi, endCfi; - var check = function(node) { - var elPos; - var elRange; - var found; - if (node.nodeType == Node.TEXT_NODE) { - - elRange = document.createRange(); - elRange.selectNodeContents(node); - elPos = elRange.getBoundingClientRect(); - - if(!elPos || (elPos.width === 0 && elPos.height === 0)) { - return; - } - - //-- Element starts new Col - if(elPos.left > elLimit) { - found = checkText(node); - } - - //-- Element Spans new Col - if(elPos.right > elLimit) { - found = checkText(node); - } - - prevElement = node; - - if (found) { - prevRange = null; - } - } - - }; - var checkText = function(node){ - var result; - var ranges = renderer.splitTextNodeIntoWordsRanges(node); - - ranges.forEach(function(range){ - var pos = range.getBoundingClientRect(); - - if(!pos || (pos.width === 0 && pos.height === 0)) { - return; - } - if(pos.left + pos.width < limit) { - if(!map[page-1]){ - range.collapse(true); - cfi = renderer.currentChapter.cfiFromRange(range); - // map[page-1].start = cfi; - result = map.push({ start: cfi, end: null }); - } - } else { - // Previous Range is null since we already found our last map pair - // Use that last walked textNode - if(!prevRange && prevElement) { - prevRanges = renderer.splitTextNodeIntoWordsRanges(prevElement); - prevRange = prevRanges[prevRanges.length-1]; - } - - if(prevRange && map.length){ - prevRange.collapse(false); - cfi = renderer.currentChapter.cfiFromRange(prevRange); - if (map[map.length-1]) { - map[map.length-1].end = cfi; - } - } - - range.collapse(true); - cfi = renderer.currentChapter.cfiFromRange(range); - result = map.push({ - start: cfi, - end: null - }); - - page += 1; - limit = (width * page) - offset; - elLimit = limit; - } - - prevRange = range; - }); - - return result; - }; - var docEl = this.render.getDocumentElement(); - var dir = docEl.dir; - - // Set back to ltr before sprinting to get correct order - if(dir == "rtl") { - docEl.dir = "ltr"; - if (this.layoutSettings.layout !== "pre-paginated") { - docEl.style.position = "static"; - } - } - - this.textSprint(root, check); - - // Reset back to previous RTL settings - if(dir == "rtl") { - docEl.dir = dir; - if (this.layoutSettings.layout !== "pre-paginated") { - docEl.style.left = "auto"; - docEl.style.right = "0"; - } - } - - // Check the remaining children that fit on this page - // to ensure the end is correctly calculated - if(!prevRange && prevElement) { - prevRanges = renderer.splitTextNodeIntoWordsRanges(prevElement); - prevRange = prevRanges[prevRanges.length-1]; - } - - if(prevRange){ - prevRange.collapse(false); - cfi = renderer.currentChapter.cfiFromRange(prevRange); - map[map.length-1].end = cfi; - } - - // Handle empty map - if(!map.length) { - startRange = this.doc.createRange(); - startRange.selectNodeContents(root); - startRange.collapse(true); - startCfi = renderer.currentChapter.cfiFromRange(startRange); - - endRange = this.doc.createRange(); - endRange.selectNodeContents(root); - endRange.collapse(false); - endCfi = renderer.currentChapter.cfiFromRange(endRange); - - - map.push({ start: startCfi, end: endCfi }); - - } - - // clean up - prevRange = null; - prevRanges = undefined; - startRange = null; - endRange = null; - root = null; - - return map; -}; - - -EPUBJS.Renderer.prototype.indexOfBreakableChar = function (text, startPosition) { - var whiteCharacters = "\x2D\x20\t\r\n\b\f"; - // '-' \x2D - // ' ' \x20 - - if (! startPosition) { - startPosition = 0; - } - - for (var i = startPosition; i < text.length; i++) { - if (whiteCharacters.indexOf(text.charAt(i)) != -1) { - return i; - } - } - - return -1; -}; - - -EPUBJS.Renderer.prototype.splitTextNodeIntoWordsRanges = function(node){ - var ranges = []; - var text = node.textContent.trim(); - var range; - var rect; - var list; - - // Usage of indexOf() function for space character as word delimiter - // is not sufficient in case of other breakable characters like \r\n- etc - var pos = this.indexOfBreakableChar(text); - - if(pos === -1) { - range = this.doc.createRange(); - range.selectNodeContents(node); - return [range]; - } - - range = this.doc.createRange(); - range.setStart(node, 0); - range.setEnd(node, pos); - ranges.push(range); - - // there was a word miss in case of one letter words - range = this.doc.createRange(); - range.setStart(node, pos+1); - - while ( pos != -1 ) { - - pos = this.indexOfBreakableChar(text, pos + 1); - if(pos > 0) { - - if(range) { - range.setEnd(node, pos); - ranges.push(range); - } - - range = this.doc.createRange(); - range.setStart(node, pos+1); - } - } - - if(range) { - range.setEnd(node, text.length); - ranges.push(range); - } - - return ranges; -}; - -EPUBJS.Renderer.prototype.rangePosition = function(range){ - var rect; - var list; - - list = range.getClientRects(); - - if(list.length) { - rect = list[0]; - return rect; - } - - return null; -}; - -/* -// Get the cfi of the current page -EPUBJS.Renderer.prototype.getPageCfi = function(prevEl){ - var range = this.doc.createRange(); - var position; - // TODO : this might need to take margin / padding into account? - var x = 1;//this.formated.pageWidth/2; - var y = 1;//;this.formated.pageHeight/2; - - range = this.getRange(x, y); - - // var test = this.doc.defaultView.getSelection(); - // var r = this.doc.createRange(); - // test.removeAllRanges(); - // r.setStart(range.startContainer, range.startOffset); - // r.setEnd(range.startContainer, range.startOffset + 1); - // test.addRange(r); - - return this.currentChapter.cfiFromRange(range); -}; -*/ - -// Get the cfi of the current page -EPUBJS.Renderer.prototype.getPageCfi = function(){ - var pg = (this.chapterPos * 2)-1; - return this.pageMap[pg].start; -}; - -EPUBJS.Renderer.prototype.getRange = function(x, y, forceElement){ - var range = this.doc.createRange(); - var position; - forceElement = true; // temp override - if(typeof document.caretPositionFromPoint !== "undefined" && !forceElement){ - position = this.doc.caretPositionFromPoint(x, y); - range.setStart(position.offsetNode, position.offset); - } else if(typeof document.caretRangeFromPoint !== "undefined" && !forceElement){ - range = this.doc.caretRangeFromPoint(x, y); - } else { - this.visibileEl = this.findElementAfter(x, y); - range.setStart(this.visibileEl, 1); - } - - // var test = this.doc.defaultView.getSelection(); - // var r = this.doc.createRange(); - // test.removeAllRanges(); - // r.setStart(range.startContainer, range.startOffset); - // r.setEnd(range.startContainer, range.startOffset + 1); - // test.addRange(r); - return range; -}; - -/* -EPUBJS.Renderer.prototype.getVisibleRangeCfi = function(prevEl){ - var startX = 0; - var startY = 0; - var endX = this.width-1; - var endY = this.height-1; - var startRange = this.getRange(startX, startY); - var endRange = this.getRange(endX, endY); //fix if carret not avail - var startCfi = this.currentChapter.cfiFromRange(startRange); - var endCfi; - if(endRange) { - endCfi = this.currentChapter.cfiFromRange(endRange); - } - - return { - start: startCfi, - end: endCfi || false - }; -}; -*/ - -EPUBJS.Renderer.prototype.pagesInCurrentChapter = function() { - var pgs; - var length; - - if(!this.pageMap) { - console.warn("page map not loaded"); - return false; - } - - length = this.pageMap.length; - - // if(this.spreads){ - // pgs = Math.ceil(length / 2); - // } else { - // pgs = length; - // } - - return length; -}; - -EPUBJS.Renderer.prototype.currentRenderedPage = function(){ - var pg; - - if(!this.pageMap) { - console.warn("page map not loaded"); - return false; - } - - if (this.spreads && this.pageMap.length > 1) { - pg = (this.chapterPos*2) - 1; - } else { - pg = this.chapterPos; - } - - return pg; -}; - -EPUBJS.Renderer.prototype.getRenderedPagesLeft = function(){ - var pg; - var lastPage; - var pagesLeft; - - if(!this.pageMap) { - console.warn("page map not loaded"); - return false; - } - - lastPage = this.pageMap.length; - - if (this.spreads) { - pg = (this.chapterPos*2) - 1; - } else { - pg = this.chapterPos; - } - - pagesLeft = lastPage - pg; - return pagesLeft; - -}; - -EPUBJS.Renderer.prototype.getVisibleRangeCfi = function(){ - var pg; - var startRange, endRange; - - if(!this.pageMap) { - console.warn("page map not loaded"); - return false; - } - - if (this.spreads) { - pg = this.chapterPos*2; - startRange = this.pageMap[pg-2]; - endRange = startRange; - - if(this.pageMap.length > 1 && this.pageMap.length > pg-1) { - endRange = this.pageMap[pg-1]; - } - } else { - pg = this.chapterPos; - startRange = this.pageMap[pg-1]; - endRange = startRange; - } - - if(!startRange) { - console.warn("page range miss:", pg, this.pageMap); - startRange = this.pageMap[this.pageMap.length-1]; - endRange = startRange; - } - - return { - start: startRange.start, - end: endRange.end - }; -}; - -// Goto a cfi position in the current chapter -EPUBJS.Renderer.prototype.gotoCfi = function(cfi){ - var pg; - var marker; - var range; - - if(this._moving){ - return this._q.enqueue("gotoCfi", arguments); - } - - if(EPUBJS.core.isString(cfi)){ - cfi = this.epubcfi.parse(cfi); - } - - if(typeof document.evaluate === 'undefined') { - marker = this.epubcfi.addMarker(cfi, this.doc); - if(marker) { - pg = this.render.getPageNumberByElement(marker); - // Must Clean up Marker before going to page - this.epubcfi.removeMarker(marker, this.doc); - this.page(pg); - } - } else { - range = this.epubcfi.generateRangeFromCfi(cfi, this.doc); - if(range) { - // jaroslaw.bielski@7bulls.com - // It seems that sometimes getBoundingClientRect() returns null for first page CFI in chapter. - // It is always reproductible if few consecutive chapters have only one page. - // NOTE: This is only workaround and the issue needs an deeper investigation. - // NOTE: Observed on Android 4.2.1 using WebView widget as HTML renderer (Asus TF300T). - var rect = range.getBoundingClientRect(); - if (rect) { - pg = this.render.getPageNumberByRect(rect); - - } else { - // Goto first page in chapter - pg = 1; - } - - this.page(pg); - - // Reset the current location cfi to requested cfi - this.currentLocationCfi = cfi.str; - } else { - // Failed to find a range, go to first page - this.page(1); - } - } -}; - -// Walk nodes until a visible element is found -EPUBJS.Renderer.prototype.findFirstVisible = function(startEl){ - var el = startEl || this.render.getBaseElement(); - var found; - // kgolunski@7bulls.com - // Looks like an old API usage - // Set x and y as 0 to fullfill walk method API. - found = this.walk(el, 0, 0); - - if(found) { - return found; - }else{ - return startEl; - } - -}; -// TODO: remove me - unsused -EPUBJS.Renderer.prototype.findElementAfter = function(x, y, startEl){ - var el = startEl || this.render.getBaseElement(); - var found; - found = this.walk(el, x, y); - if(found) { - return found; - }else{ - return el; - } - -}; - -/* -EPUBJS.Renderer.prototype.route = function(hash, callback){ - var location = window.location.hash.replace('#/', ''); - if(this.useHash && location.length && location != this.prevLocation){ - this.show(location, callback); - this.prevLocation = location; - return true; - } - return false; -} - -EPUBJS.Renderer.prototype.hideHashChanges = function(){ - this.useHash = false; -} - -*/ - -EPUBJS.Renderer.prototype.resize = function(width, height, setSize){ - var spreads; - - this.width = width; - this.height = height; - - if(setSize !== false) { - this.render.resize(this.width, this.height); - } - - - - if(this.contents){ - this.reformat(); - } - - this.trigger("renderer:resized", { - width: this.width, - height: this.height - }); -}; - -//-- Listeners for events in the frame - -EPUBJS.Renderer.prototype.onResized = function(e) { - this.trigger('renderer:beforeResize'); - - var width = this.container.clientWidth; - var height = this.container.clientHeight; - - this.resize(width, height, false); -}; - -EPUBJS.Renderer.prototype.addEventListeners = function(){ - if(!this.render.document) { - return; - } - this.listenedEvents.forEach(function(eventName){ - this.render.document.addEventListener(eventName, this.triggerEvent.bind(this), false); - }, this); - -}; - -EPUBJS.Renderer.prototype.removeEventListeners = function(){ - if(!this.render.document) { - return; - } - this.listenedEvents.forEach(function(eventName){ - this.render.document.removeEventListener(eventName, this.triggerEvent, false); - }, this); - -}; - -// Pass browser events -EPUBJS.Renderer.prototype.triggerEvent = function(e){ - this.trigger("renderer:"+e.type, e); -}; - -EPUBJS.Renderer.prototype.addSelectionListeners = function(){ - this.render.document.addEventListener("selectionchange", this.onSelectionChange.bind(this), false); -}; - -EPUBJS.Renderer.prototype.removeSelectionListeners = function(){ - if(!this.render.document) { - return; - } - this.doc.removeEventListener("selectionchange", this.onSelectionChange, false); -}; - -EPUBJS.Renderer.prototype.onSelectionChange = function(e){ - if (this.selectionEndTimeout) { - clearTimeout(this.selectionEndTimeout); - } - this.selectionEndTimeout = setTimeout(function() { - this.selectedRange = this.render.window.getSelection(); - this.trigger("renderer:selected", this.selectedRange); - }.bind(this), 500); -}; - - -//-- Spreads - -EPUBJS.Renderer.prototype.setMinSpreadWidth = function(width){ - this.minSpreadWidth = width; - this.spreads = this.determineSpreads(width); -}; - -EPUBJS.Renderer.prototype.determineSpreads = function(cutoff){ - if(this.isForcedSingle || !cutoff || this.width < cutoff) { - return false; //-- Single Page - }else{ - return true; //-- Double Page - } -}; - -EPUBJS.Renderer.prototype.forceSingle = function(bool){ - if(bool) { - this.isForcedSingle = true; - // this.spreads = false; - } else { - this.isForcedSingle = false; - // this.spreads = this.determineSpreads(this.minSpreadWidth); - } -}; - -EPUBJS.Renderer.prototype.setGap = function(gap){ - this.gap = gap; //-- False == auto gap -}; - -EPUBJS.Renderer.prototype.setDirection = function(direction){ - this.direction = direction; - this.render.setDirection(this.direction); -}; - -//-- Content Replacements - -EPUBJS.Renderer.prototype.replace = function(query, func, finished, progress){ - var items = this.contents.querySelectorAll(query), - resources = Array.prototype.slice.call(items), - count = resources.length; - - - if(count === 0) { - finished(false); - return; - } - resources.forEach(function(item){ - var called = false; - var after = function(result, full){ - if(called === false) { - count--; - if(progress) progress(result, full, count); - if(count <= 0 && finished) finished(true); - called = true; - } - }; - - func(item, after); - - }.bind(this)); - -}; - -//-- Enable binding events to Renderer -RSVP.EventTarget.mixin(EPUBJS.Renderer.prototype); - -var EPUBJS = EPUBJS || {}; -EPUBJS.replace = {}; - -//-- Replaces the relative links within the book to use our internal page changer -EPUBJS.replace.hrefs = function(callback, renderer){ - var book = this; - var replacments = function(link, done){ - var href = link.getAttribute("href"), - isRelative = href.search("://"), - directory, - relative, - location, - base, - uri, - url; - - if(href.indexOf("mailto:") === 0){ - done(); - return; - } - - if(isRelative != -1){ - - link.setAttribute("target", "_blank"); - - }else{ - // Links may need to be resolved, such as ../chp1.xhtml - base = renderer.render.docEl.querySelector('base'); - url = base.getAttribute("href"); - uri = EPUBJS.core.uri(url); - directory = uri.directory; - - if (href.indexOf("#") === 0) { - href = uri.filename + href; - } - - if(directory) { - // We must ensure that the file:// protocol is preserved for - // local file links, as in certain contexts (such as under - // Titanium), file links without the file:// protocol will not - // work - if (uri.protocol === "file") { - relative = EPUBJS.core.resolveUrl(uri.base, href); - } else { - relative = EPUBJS.core.resolveUrl(directory, href); - } - } else { - relative = href; - } - - link.onclick = function(){ - book.trigger("book:linkClicked", href); - book.goto(relative); - return false; - }; - - } - done(); - - }; - - renderer.replace("a[href]", replacments, callback); - -}; - -EPUBJS.replace.head = function(callback, renderer) { - - renderer.replaceWithStored("link[href]", "href", EPUBJS.replace.links, callback); - -}; - - -//-- Replaces assets src's to point to stored version if browser is offline -EPUBJS.replace.resources = function(callback, renderer){ - //srcs = this.doc.querySelectorAll('[src]'); - renderer.replaceWithStored("[src]", "src", EPUBJS.replace.srcs, callback); - -}; - -EPUBJS.replace.posters = function(callback, renderer){ - - renderer.replaceWithStored("[poster]", "poster", EPUBJS.replace.srcs, callback); - -}; - -EPUBJS.replace.svg = function(callback, renderer) { - - renderer.replaceWithStored("svg image", "xlink:href", function(_store, full, done){ - _store.getUrl(full).then(done); - }, callback); - -}; - -EPUBJS.replace.srcs = function(_store, full, done){ - - var isRelative = (full.search("://") === -1); - - if (isRelative) { - _store.getUrl(full).then(done); - } else { - done(); - } - -}; - -//-- Replaces links in head, such as stylesheets - link[href] -EPUBJS.replace.links = function(_store, full, done, link){ - //-- Handle replacing urls in CSS - if(link.getAttribute("rel") === "stylesheet") { - EPUBJS.replace.stylesheets(_store, full).then(function(url, full){ - // done - done(url, full); - }, function(reason) { - // we were unable to replace the style sheets - done(null); - }); - }else{ - _store.getUrl(full).then(done, function(reason) { - // we were unable to get the url, signal to upper layer - done(null); - }); - } -}; - -EPUBJS.replace.stylesheets = function(_store, full) { - var deferred = new RSVP.defer(); - - if(!_store) return; - - _store.getText(full).then(function(text){ - var url; - - EPUBJS.replace.cssImports(_store, full, text).then(function (importText) { - - text = importText + text; - - EPUBJS.replace.cssUrls(_store, full, text).then(function(newText){ - var _URL = window.URL || window.webkitURL || window.mozURL; - - var blob = new Blob([newText], { "type" : "text\/css" }), - url = _URL.createObjectURL(blob); - - deferred.resolve(url); - 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Load the zip lib and set the workerScriptsPath -EPUBJS.Storage.prototype.checkRequirements = function(callback){ - if(typeof(localforage) == "undefined") console.error("localForage library not loaded"); -}; - -EPUBJS.Storage.prototype.put = function(assets, store) { - var deferred = new RSVP.defer(); - var count = assets.length; - var current = 0; - var next = function(deferred){ - var done = deferred || new RSVP.defer(); - var url; - var encodedUrl; - - if(current >= count) { - done.resolve(); - } else { - url = assets[current].url; - encodedUrl = window.encodeURIComponent(url); - - EPUBJS.core.request(url, "binary") - .then(function (data) { - return localforage.setItem(encodedUrl, data); - }) - .then(function(data){ - current++; - // Load up the next - setTimeout(function(){ - next(done); - }, 1); - - }); - } - return done.promise; - }.bind(this); - - if(!Array.isArray(assets)) { - assets = [assets]; - } - - next().then(function(){ - deferred.resolve(); - }.bind(this)); - - return 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path';continue}break;case'relative slash':if('/'==E||'\\'==E)'\\'==E&&d('\\ is an invalid code point.'),m='file'==this._scheme?'file host':'authority ignore slashes';else{'file'!=this._scheme&&(this._host=l._host,this._port=l._port,this._username=l._username,this._password=l._password),m='relative path';continue}break;case'authority first slash':if('/'==E)m='authority second slash';else{d('Expected \'/\', got: '+E),m='authority ignore slashes';continue}break;case'authority second slash':if(m='authority ignore slashes','/'!=E){d('Expected \'/\', got: '+E);continue}break;case'authority ignore slashes':if('/'!=E&&'\\'!=E){m='authority';continue}else d('Expected authority, got: '+E);break;case'authority':if('@'==E){b&&(d('@ already seen.'),v+='%40'),b=!0;for(var w=0,i;w