-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