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-define("dojo/dnd/Selector", [
- "../_base/array", "../_base/declare", "../_base/event", "../_base/kernel", "../_base/lang",
- "../dom", "../dom-construct", "../mouse", "../_base/NodeList", "../on", "../touch", "./common", "./Container"
-], function(array, declare, event, kernel, lang, dom, domConstruct, mouse, NodeList, on, touch, dnd, Container){
-
-// module:
-// dojo/dnd/Selector
-
-/*
- Container item states:
- "" - an item is not selected
- "Selected" - an item is selected
- "Anchor" - an item is selected, and is an anchor for a "shift" selection
-*/
-
-/*=====
-var __SelectorArgs = declare([Container.__ContainerArgs], {
- // singular: Boolean
- // allows selection of only one element, if true
- singular: false,
-
- // autoSync: Boolean
- // autosynchronizes the source with its list of DnD nodes,
- autoSync: false
-});
-=====*/
-
-var Selector = declare("dojo.dnd.Selector", Container, {
- // summary:
- // a Selector object, which knows how to select its children
-
- /*=====
- // selection: Set<String>
- // The set of id's that are currently selected, such that this.selection[id] == 1
- // if the node w/that id is selected. Can iterate over selected node's id's like:
- // | for(var id in this.selection)
- selection: {},
- =====*/
-
- constructor: function(node, params){
- // summary:
- // constructor of the Selector
- // node: Node||String
- // node or node's id to build the selector on
- // params: __SelectorArgs?
- // a dictionary of parameters
- if(!params){ params = {}; }
- this.singular = params.singular;
- this.autoSync = params.autoSync;
- // class-specific variables
- this.selection = {};
- this.anchor = null;
- this.simpleSelection = false;
- // set up events
- this.events.push(
- on(this.node, touch.press, lang.hitch(this, "onMouseDown")),
- on(this.node, touch.release, lang.hitch(this, "onMouseUp"))
- );
- },
-
- // object attributes (for markup)
- singular: false, // is singular property
-
- // methods
- getSelectedNodes: function(){
- // summary:
- // returns a list (an array) of selected nodes
- var t = new NodeList();
- var e = dnd._empty;
- for(var i in this.selection){
- if(i in e){ continue; }
- t.push(dom.byId(i));
- }
- return t; // NodeList
- },
- selectNone: function(){
- // summary:
- // unselects all items
- return this._removeSelection()._removeAnchor(); // self
- },
- selectAll: function(){
- // summary:
- // selects all items
- this.forInItems(function(data, id){
- this._addItemClass(dom.byId(id), "Selected");
- this.selection[id] = 1;
- }, this);
- return this._removeAnchor(); // self
- },
- deleteSelectedNodes: function(){
- // summary:
- // deletes all selected items
- var e = dnd._empty;
- for(var i in this.selection){
- if(i in e){ continue; }
- var n = dom.byId(i);
- this.delItem(i);
- domConstruct.destroy(n);
- }
- this.anchor = null;
- this.selection = {};
- return this; // self
- },
- forInSelectedItems: function(/*Function*/ f, /*Object?*/ o){
- // summary:
- // iterates over selected items;
- // see `dojo/dnd/Container.forInItems()` for details
- o = o || kernel.global;
- var s = this.selection, e = dnd._empty;
- for(var i in s){
- if(i in e){ continue; }
- f.call(o, this.getItem(i), i, this);
- }
- },
- sync: function(){
- // summary:
- // sync up the node list with the data map
-
- Selector.superclass.sync.call(this);
-
- // fix the anchor
- if(this.anchor){
- if(!this.getItem(this.anchor.id)){
- this.anchor = null;
- }
- }
-
- // fix the selection
- var t = [], e = dnd._empty;
- for(var i in this.selection){
- if(i in e){ continue; }
- if(!this.getItem(i)){
- t.push(i);
- }
- }
- array.forEach(t, function(i){
- delete this.selection[i];
- }, this);
-
- return this; // self
- },
- insertNodes: function(addSelected, data, before, anchor){
- // summary:
- // inserts new data items (see `dojo/dnd/Container.insertNodes()` method for details)
- // addSelected: Boolean
- // all new nodes will be added to selected items, if true, no selection change otherwise
- // data: Array
- // a list of data items, which should be processed by the creator function
- // before: Boolean
- // insert before the anchor, if true, and after the anchor otherwise
- // anchor: Node
- // the anchor node to be used as a point of insertion
- var oldCreator = this._normalizedCreator;
- this._normalizedCreator = function(item, hint){
- var t = oldCreator.call(this, item, hint);
- if(addSelected){
- if(!this.anchor){
- this.anchor = t.node;
- this._removeItemClass(t.node, "Selected");
- this._addItemClass(this.anchor, "Anchor");
- }else if(this.anchor != t.node){
- this._removeItemClass(t.node, "Anchor");
- this._addItemClass(t.node, "Selected");
- }
- this.selection[t.node.id] = 1;
- }else{
- this._removeItemClass(t.node, "Selected");
- this._removeItemClass(t.node, "Anchor");
- }
- return t;
- };
- Selector.superclass.insertNodes.call(this, data, before, anchor);
- this._normalizedCreator = oldCreator;
- return this; // self
- },
- destroy: function(){
- // summary:
- // prepares the object to be garbage-collected
- Selector.superclass.destroy.call(this);
- this.selection = this.anchor = null;
- },
-
- // mouse events
- onMouseDown: function(e){
- // summary:
- // event processor for onmousedown
- // e: Event
- // mouse event
- if(this.autoSync){ this.sync(); }
- if(!this.current){ return; }
- if(!this.singular && !dnd.getCopyKeyState(e) && !e.shiftKey && (this.current.id in this.selection)){
- this.simpleSelection = true;
- if(mouse.isLeft(e)){
- // Accept the left button and stop the event. Stopping the event prevents text selection while
- // dragging. However, don't stop the event on mobile because that prevents a click event,
- // and also prevents scroll (see #15838).
- // For IE we don't stop event when multiple buttons are pressed.
- event.stop(e);
- }
- return;
- }
- if(!this.singular && e.shiftKey){
- if(!dnd.getCopyKeyState(e)){
- this._removeSelection();
- }
- var c = this.getAllNodes();
- if(c.length){
- if(!this.anchor){
- this.anchor = c[0];
- this._addItemClass(this.anchor, "Anchor");
- }
- this.selection[this.anchor.id] = 1;
- if(this.anchor != this.current){
- var i = 0, node;
- for(; i < c.length; ++i){
- node = c[i];
- if(node == this.anchor || node == this.current){ break; }
- }
- for(++i; i < c.length; ++i){
- node = c[i];
- if(node == this.anchor || node == this.current){ break; }
- this._addItemClass(node, "Selected");
- this.selection[node.id] = 1;
- }
- this._addItemClass(this.current, "Selected");
- this.selection[this.current.id] = 1;
- }
- }
- }else{
- if(this.singular){
- if(this.anchor == this.current){
- if(dnd.getCopyKeyState(e)){
- this.selectNone();
- }
- }else{
- this.selectNone();
- this.anchor = this.current;
- this._addItemClass(this.anchor, "Anchor");
- this.selection[this.current.id] = 1;
- }
- }else{
- if(dnd.getCopyKeyState(e)){
- if(this.anchor == this.current){
- delete this.selection[this.anchor.id];
- this._removeAnchor();
- }else{
- if(this.current.id in this.selection){
- this._removeItemClass(this.current, "Selected");
- delete this.selection[this.current.id];
- }else{
- if(this.anchor){
- this._removeItemClass(this.anchor, "Anchor");
- this._addItemClass(this.anchor, "Selected");
- }
- this.anchor = this.current;
- this._addItemClass(this.current, "Anchor");
- this.selection[this.current.id] = 1;
- }
- }
- }else{
- if(!(this.current.id in this.selection)){
- this.selectNone();
- this.anchor = this.current;
- this._addItemClass(this.current, "Anchor");
- this.selection[this.current.id] = 1;
- }
- }
- }
- }
- event.stop(e);
- },
- onMouseUp: function(/*===== e =====*/){
- // summary:
- // event processor for onmouseup
- // e: Event
- // mouse event
- if(!this.simpleSelection){ return; }
- this.simpleSelection = false;
- this.selectNone();
- if(this.current){
- this.anchor = this.current;
- this._addItemClass(this.anchor, "Anchor");
- this.selection[this.current.id] = 1;
- }
- },
- onMouseMove: function(/*===== e =====*/){
- // summary:
- // event processor for onmousemove
- // e: Event
- // mouse event
- this.simpleSelection = false;
- },
-
- // utilities
- onOverEvent: function(){
- // summary:
- // this function is called once, when mouse is over our container
- this.onmousemoveEvent = on(this.node, touch.move, lang.hitch(this, "onMouseMove"));
- },
- onOutEvent: function(){
- // summary:
- // this function is called once, when mouse is out of our container
- if(this.onmousemoveEvent){
- this.onmousemoveEvent.remove();
- delete this.onmousemoveEvent;
- }
- },
- _removeSelection: function(){
- // summary:
- // unselects all items
- var e = dnd._empty;
- for(var i in this.selection){
- if(i in e){ continue; }
- var node = dom.byId(i);
- if(node){ this._removeItemClass(node, "Selected"); }
- }
- this.selection = {};
- return this; // self
- },
- _removeAnchor: function(){
- if(this.anchor){
- this._removeItemClass(this.anchor, "Anchor");
- this.anchor = null;
- }
- return this; // self
- }
-});
-
-return Selector;
-
-});
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