--- /dev/null
+if(!dojo._hasResource["dojo.dnd.Selector"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojo.dnd.Selector"] = true;
+dojo.provide("dojo.dnd.Selector");
+
+dojo.require("dojo.dnd.common");
+dojo.require("dojo.dnd.Container");
+
+/*
+ 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.Selector", dojo.dnd.Container, {
+ // summary: a Selector object, which knows how to select its children
+
+ constructor: function(node, params){
+ // summary: a constructor of the Selector
+ // node: Node: node or node's id to build the selector on
+ // params: Object: a dict of parameters, recognized parameters are:
+ // singular: Boolean: allows selection of only one element, if true
+ // the rest of parameters are passed to the container
+ if(!params){ params = {}; }
+ this.singular = params.singular;
+ // 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; // Array
+ },
+ 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._destroyElement(n);
+ }
+ this.anchor = null;
+ this.selection = {};
+ return this; // self
+ },
+ insertNodes: function(addSelected, data, before, anchor){
+ // summary: inserts new data items (see Container's 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;
+ },
+
+ // markup methods
+ markupFactory: function(params, node){
+ params._skipStartup = true;
+ return new dojo.dnd.Selector(node, params);
+ },
+
+ // mouse events
+ onMouseDown: function(e){
+ // summary: event processor for onmousedown
+ // e: Event: mouse event
+ if(!this.current){ return; }
+ if(!this.singular && !dojo.dnd.getCopyKeyState(e) && !e.shiftKey && (this.current.id in this.selection)){
+ this.simpleSelection = true;
+ dojo.stopEvent(e);
+ return;
+ }
+ if(!this.singular && e.shiftKey){
+ if(!dojo.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;
+ 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.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(dojo.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;
+ }
+ }
+ }
+ }
+ 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
+ }
+});
+
+}
projects / eow / blobdiff