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define("dojo/touch", ["./_base/kernel", "./aspect", "./dom", "./on", "./has", "./mouse", "./ready", "./_base/window"],
function(dojo, aspect, dom, on, has, mouse, ready, win){
// module:
// dojo/touch
var hasTouch = has("touch");
// TODO: get iOS version from dojo/sniff after #15827 is fixed
var ios4 = false;
if(has("ios")){
var ua = navigator.userAgent;
var v = ua.match(/OS ([\d_]+)/) ? RegExp.$1 : "1";
var os = parseFloat(v.replace(/_/, '.').replace(/_/g, ''));
ios4 = os < 5;
}
var touchmove, hoveredNode;
if(hasTouch){
ready(function(){
// Keep track of currently hovered node
hoveredNode = win.body(); // currently hovered node
win.doc.addEventListener("touchstart", function(evt){
// Precede touchstart event with touch.over event. DnD depends on this.
// Use addEventListener(cb, true) to run cb before any touchstart handlers on node run,
// and to ensure this code runs even if the listener on the node does event.stop().
var oldNode = hoveredNode;
hoveredNode = evt.target;
on.emit(oldNode, "dojotouchout", {
target: oldNode,
relatedTarget: hoveredNode,
bubbles: true
});
on.emit(hoveredNode, "dojotouchover", {
target: hoveredNode,
relatedTarget: oldNode,
bubbles: true
});
}, true);
// Fire synthetic touchover and touchout events on nodes since the browser won't do it natively.
on(win.doc, "touchmove", function(evt){
var newNode = win.doc.elementFromPoint(
evt.pageX - (ios4 ? 0 : win.global.pageXOffset), // iOS 4 expects page coords
evt.pageY - (ios4 ? 0 : win.global.pageYOffset)
);
if(newNode && hoveredNode !== newNode){
// touch out on the old node
on.emit(hoveredNode, "dojotouchout", {
target: hoveredNode,
relatedTarget: newNode,
bubbles: true
});
// touchover on the new node
on.emit(newNode, "dojotouchover", {
target: newNode,
relatedTarget: hoveredNode,
bubbles: true
});
hoveredNode = newNode;
}
});
});
// Define synthetic touch.move event that unlike the native touchmove, fires for the node the finger is
// currently dragging over rather than the node where the touch started.
touchmove = function(node, listener){
return on(win.doc, "touchmove", function(evt){
if(node === win.doc || dom.isDescendant(hoveredNode, node)){
evt.target = hoveredNode;
listener.call(this, evt);
}
});
};
}
function _handle(type){
// type: String
// press | move | release | cancel
return function(node, listener){//called by on(), see dojo.on
return on(node, type, listener);
};
}
//device neutral events - touch.press|move|release|cancel/over/out
var touch = {
press: _handle(hasTouch ? "touchstart": "mousedown"),
move: hasTouch ? touchmove :_handle("mousemove"),
release: _handle(hasTouch ? "touchend": "mouseup"),
cancel: hasTouch ? _handle("touchcancel") : mouse.leave,
over: _handle(hasTouch ? "dojotouchover": "mouseover"),
out: _handle(hasTouch ? "dojotouchout": "mouseout"),
enter: mouse._eventHandler(hasTouch ? "dojotouchover" : "mouseover"),
leave: mouse._eventHandler(hasTouch ? "dojotouchout" : "mouseout")
};
/*=====
touch = {
// summary:
// This module provides unified touch event handlers by exporting
// press, move, release and cancel which can also run well on desktop.
// Based on http://dvcs.w3.org/hg/webevents/raw-file/tip/touchevents.html
//
// example:
// Used with dojo.on
// | define(["dojo/on", "dojo/touch"], function(on, touch){
// | on(node, touch.press, function(e){});
// | on(node, touch.move, function(e){});
// | on(node, touch.release, function(e){});
// | on(node, touch.cancel, function(e){});
// example:
// Used with touch.* directly
// | touch.press(node, function(e){});
// | touch.move(node, function(e){});
// | touch.release(node, function(e){});
// | touch.cancel(node, function(e){});
press: function(node, listener){
// summary:
// Register a listener to 'touchstart'|'mousedown' for the given node
// node: Dom
// Target node to listen to
// listener: Function
// Callback function
// returns:
// A handle which will be used to remove the listener by handle.remove()
},
move: function(node, listener){
// summary:
// Register a listener to 'touchmove'|'mousemove' for the given node
// node: Dom
// Target node to listen to
// listener: Function
// Callback function
// returns:
// A handle which will be used to remove the listener by handle.remove()
},
release: function(node, listener){
// summary:
// Register a listener to 'touchend'|'mouseup' for the given node
// node: Dom
// Target node to listen to
// listener: Function
// Callback function
// returns:
// A handle which will be used to remove the listener by handle.remove()
},
cancel: function(node, listener){
// summary:
// Register a listener to 'touchcancel'|'mouseleave' for the given node
// node: Dom
// Target node to listen to
// listener: Function
// Callback function
// returns:
// A handle which will be used to remove the listener by handle.remove()
},
over: function(node, listener){
// summary:
// Register a listener to 'mouseover' or touch equivalent for the given node
// node: Dom
// Target node to listen to
// listener: Function
// Callback function
// returns:
// A handle which will be used to remove the listener by handle.remove()
},
out: function(node, listener){
// summary:
// Register a listener to 'mouseout' or touch equivalent for the given node
// node: Dom
// Target node to listen to
// listener: Function
// Callback function
// returns:
// A handle which will be used to remove the listener by handle.remove()
},
enter: function(node, listener){
// summary:
// Register a listener to mouse.enter or touch equivalent for the given node
// node: Dom
// Target node to listen to
// listener: Function
// Callback function
// returns:
// A handle which will be used to remove the listener by handle.remove()
},
leave: function(node, listener){
// summary:
// Register a listener to mouse.leave or touch equivalent for the given node
// node: Dom
// Target node to listen to
// listener: Function
// Callback function
// returns:
// A handle which will be used to remove the listener by handle.remove()
}
};
=====*/
1 && (dojo.touch = touch);
return touch;
});
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