/**
- * @class Ext.dd.Registry
- * Provides easy access to all drag drop components that are registered on a page. Items can be retrieved either
- * directly by DOM node id, or by passing in the drag drop event that occurred and looking up the event target.
- * @singleton
- */
-Ext.dd.Registry = function(){
- var elements = {};
- var handles = {};
- var autoIdSeed = 0;
-
- var getId = function(el, autogen){
- if(typeof el == "string"){
- return el;
- }
- var id = el.id;
- if(!id && autogen !== false){
- id = "extdd-" + (++autoIdSeed);
- el.id = id;
- }
- return id;
- };
-
- return {
- /**
- * Resgister a drag drop element
- * @param {String/HTMLElement) element The id or DOM node to register
- * @param {Object} data (optional) An custom data object that will be passed between the elements that are involved
- * in drag drop operations. You can populate this object with any arbitrary properties that your own code
- * knows how to interpret, plus there are some specific properties known to the Registry that should be
- * populated in the data object (if applicable):
- *
-Value Description
---------- ------------------------------------------
-handles Array of DOM nodes that trigger dragging
- for the element being registered
-isHandle True if the element passed in triggers
- dragging itself, else false
-
- */
- register : function(el, data){
- data = data || {};
- if(typeof el == "string"){
- el = document.getElementById(el);
- }
- data.ddel = el;
- elements[getId(el)] = data;
- if(data.isHandle !== false){
- handles[data.ddel.id] = data;
- }
- if(data.handles){
- var hs = data.handles;
- for(var i = 0, len = hs.length; i < len; i++){
- handles[getId(hs[i])] = data;
- }
- }
- },
-
- /**
- * Unregister a drag drop element
- * @param {String/HTMLElement) element The id or DOM node to unregister
- */
- unregister : function(el){
- var id = getId(el, false);
- var data = elements[id];
- if(data){
- delete elements[id];
- if(data.handles){
- var hs = data.handles;
- for(var i = 0, len = hs.length; i < len; i++){
- delete handles[getId(hs[i], false)];
- }
- }
- }
- },
-
- /**
- * Returns the handle registered for a DOM Node by id
- * @param {String/HTMLElement} id The DOM node or id to look up
- * @return {Object} handle The custom handle data
- */
- getHandle : function(id){
- if(typeof id != "string"){ // must be element?
- id = id.id;
- }
- return handles[id];
- },
-
- /**
- * Returns the handle that is registered for the DOM node that is the target of the event
- * @param {Event} e The event
- * @return {Object} handle The custom handle data
- */
- getHandleFromEvent : function(e){
- var t = Ext.lib.Event.getTarget(e);
- return t ? handles[t.id] : null;
- },
-
- /**
- * Returns a custom data object that is registered for a DOM node by id
- * @param {String/HTMLElement} id The DOM node or id to look up
- * @return {Object} data The custom data
- */
- getTarget : function(id){
- if(typeof id != "string"){ // must be element?
- id = id.id;
- }
- return elements[id];
- },
-
- /**
- * Returns a custom data object that is registered for the DOM node that is the target of the event
- * @param {Event} e The event
- * @return {Object} data The custom data
- */
- getTargetFromEvent : function(e){
- var t = Ext.lib.Event.getTarget(e);
- return t ? elements[t.id] || handles[t.id] : null;
- }
- };
-}();
-
+
+
+
+ The source code
+
+
+
+
+
/*!
+ * Ext JS Library 3.2.1
+ * Copyright(c) 2006-2010 Ext JS, Inc.
+ * licensing@extjs.com
+ * http://www.extjs.com/license
+ */
+/**
+ * @class Ext.dd.Registry
+ * Provides easy access to all drag drop components that are registered on a page. Items can be retrieved either
+ * directly by DOM node id, or by passing in the drag drop event that occurred and looking up the event target.
+ * @singleton
+ */
+Ext.dd.Registry = function(){
+ var elements = {};
+ var handles = {};
+ var autoIdSeed = 0;
+
+ var getId = function(el, autogen){
+ if(typeof el == "string"){
+ return el;
+ }
+ var id = el.id;
+ if(!id && autogen !== false){
+ id = "extdd-" + (++autoIdSeed);
+ el.id = id;
+ }
+ return id;
+ };
+
+ return {
+ /**
+ * Resgister a drag drop element
+ * @param {String/HTMLElement} element The id or DOM node to register
+ * @param {Object} data (optional) An custom data object that will be passed between the elements that are involved
+ * in drag drop operations. You can populate this object with any arbitrary properties that your own code
+ * knows how to interpret, plus there are some specific properties known to the Registry that should be
+ * populated in the data object (if applicable):
+ *
+Value Description
+--------- ------------------------------------------
+handles Array of DOM nodes that trigger dragging
+ for the element being registered
+isHandle True if the element passed in triggers
+ dragging itself, else false
+
+ */
+ register : function(el, data){
+ data = data || {};
+ if(typeof el == "string"){
+ el = document.getElementById(el);
+ }
+ data.ddel = el;
+ elements[getId(el)] = data;
+ if(data.isHandle !== false){
+ handles[data.ddel.id] = data;
+ }
+ if(data.handles){
+ var hs = data.handles;
+ for(var i = 0, len = hs.length; i < len; i++){
+ handles[getId(hs[i])] = data;
+ }
+ }
+ },
+
+ /**
+ * Unregister a drag drop element
+ * @param {String/HTMLElement} element The id or DOM node to unregister
+ */
+ unregister : function(el){
+ var id = getId(el, false);
+ var data = elements[id];
+ if(data){
+ delete elements[id];
+ if(data.handles){
+ var hs = data.handles;
+ for(var i = 0, len = hs.length; i < len; i++){
+ delete handles[getId(hs[i], false)];
+ }
+ }
+ }
+ },
+
+ /**
+ * Returns the handle registered for a DOM Node by id
+ * @param {String/HTMLElement} id The DOM node or id to look up
+ * @return {Object} handle The custom handle data
+ */
+ getHandle : function(id){
+ if(typeof id != "string"){ // must be element?
+ id = id.id;
+ }
+ return handles[id];
+ },
+
+ /**
+ * Returns the handle that is registered for the DOM node that is the target of the event
+ * @param {Event} e The event
+ * @return {Object} handle The custom handle data
+ */
+ getHandleFromEvent : function(e){
+ var t = Ext.lib.Event.getTarget(e);
+ return t ? handles[t.id] : null;
+ },
+
+ /**
+ * Returns a custom data object that is registered for a DOM node by id
+ * @param {String/HTMLElement} id The DOM node or id to look up
+ * @return {Object} data The custom data
+ */
+ getTarget : function(id){
+ if(typeof id != "string"){ // must be element?
+ id = id.id;
+ }
+ return elements[id];
+ },
+
+ /**
+ * Returns a custom data object that is registered for the DOM node that is the target of the event
+ * @param {Event} e The event
+ * @return {Object} data The custom data
+ */
+ getTargetFromEvent : function(e){
+ var t = Ext.lib.Event.getTarget(e);
+ return t ? elements[t.id] || handles[t.id] : null;
+ }
+ };
+}();