--- /dev/null
+define("dojo/dnd/Selector", ["../main", "./common", "./Container"], function(dojo) {
+ // module:
+ // dojo/dnd/Selector
+ // summary:
+ // TODOC
+
+
+/*
+ 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
+*/
+
+/*=====
+dojo.declare("dojo.dnd.__SelectorArgs", [dojo.dnd.__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
+});
+=====*/
+
+dojo.declare("dojo.dnd.Selector", dojo.dnd.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: dojo.dnd.__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(
+ dojo.connect(this.node, "onmousedown", this, "onMouseDown"),
+ dojo.connect(this.node, "onmouseup", 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 dojo.NodeList();
+ var e = dojo.dnd._empty;
+ for(var i in this.selection){
+ if(i in e){ continue; }
+ t.push(dojo.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(dojo.byId(id), "Selected");
+ this.selection[id] = 1;
+ }, this);
+ return this._removeAnchor(); // self
+ },
+ deleteSelectedNodes: function(){
+ // summary:
+ // deletes all selected items
+ var e = dojo.dnd._empty;
+ for(var i in this.selection){
+ if(i in e){ continue; }
+ var n = dojo.byId(i);
+ this.delItem(i);
+ dojo.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 || dojo.global;
+ var s = this.selection, e = dojo.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
+
+ dojo.dnd.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 = dojo.dnd._empty;
+ for(var i in this.selection){
+ if(i in e){ continue; }
+ if(!this.getItem(i)){
+ t.push(i);
+ }
+ }
+ dojo.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;
+ };
+ dojo.dnd.Selector.superclass.insertNodes.call(this, data, before, anchor);
+ this._normalizedCreator = oldCreator;
+ return this; // self
+ },
+ destroy: function(){
+ // summary:
+ // prepares the object to be garbage-collected
+ dojo.dnd.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 && !dojo.isCopyKey(e) && !e.shiftKey && (this.current.id in this.selection)){
+ this.simpleSelection = true;
+ if(e.button === dojo.mouseButtons.LEFT){
+ // accept the left button and stop the event
+ // for IE we don't stop event when multiple buttons are pressed
+ dojo.stopEvent(e);
+ }
+ return;
+ }
+ if(!this.singular && e.shiftKey){
+ if(!dojo.isCopyKey(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;
+ for(; i < c.length; ++i){
+ var node = c[i];
+ if(node == this.anchor || node == this.current){ break; }
+ }
+ for(++i; i < c.length; ++i){
+ var 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(dojo.isCopyKey(e)){
+ this.selectNone();
+ }
+ }else{
+ this.selectNone();
+ this.anchor = this.current;
+ this._addItemClass(this.anchor, "Anchor");
+ this.selection[this.current.id] = 1;
+ }
+ }else{
+ if(dojo.isCopyKey(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;
+ }
+ }
+ }
+ }
+ dojo.stopEvent(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 = dojo.connect(this.node, "onmousemove", this, "onMouseMove");
+ },
+ onOutEvent: function(){
+ // summary:
+ // this function is called once, when mouse is out of our container
+ dojo.disconnect(this.onmousemoveEvent);
+ delete this.onmousemoveEvent;
+ },
+ _removeSelection: function(){
+ // summary:
+ // unselects all items
+ var e = dojo.dnd._empty;
+ for(var i in this.selection){
+ if(i in e){ continue; }
+ var node = dojo.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 dojo.dnd.Selector;
+});
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