/**
+ * @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"){
+Ext.define('Ext.dd.Registry', {
+ singleton: true,
+ constructor: function() {
+ this.elements = {};
+ this.handles = {};
+ this.autoIdSeed = 0;
+ },
+
+ getId: function(el, autogen){
+ if(typeof el == "string"){
return el;
}
var id = el.id;
- if(!id && autogen !== false){
- id = "extdd-" + (++autoIdSeed);
+ if(!id && autogen !== false){
+ id = "extdd-" + (++this.autoIdSeed);
el.id = id;
}
return id;
- };
+ },
- return {
- /**
- * Resgister a drag drop element
+ /**
+ * 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
+ * <pre>
+Value Description<br />
+--------- ------------------------------------------<br />
+handles Array of DOM nodes that trigger dragging<br />
+ for the element being registered<br />
+isHandle True if the element passed in triggers<br />
dragging itself, else false
-
+</pre>
*/
- 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;
- }
+ register : function(el, data){
+ data = data || {};
+ if (typeof el == "string") {
+ el = document.getElementById(el);
+ }
+ data.ddel = el;
+ this.elements[this.getId(el)] = data;
+ if (data.isHandle !== false) {
+ this.handles[data.ddel.id] = data;
+ }
+ if (data.handles) {
+ var hs = data.handles;
+ for (var i = 0, len = hs.length; i < len; i++) {
+ this.handles[this.getId(hs[i])] = data;
}
- },
+ }
+ },
- /**
- * Unregister a drag drop element
+ /**
+ * 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)];
- }
+ unregister : function(el){
+ var id = this.getId(el, false);
+ var data = this.elements[id];
+ if(data){
+ delete this.elements[id];
+ if(data.handles){
+ var hs = data.handles;
+ for (var i = 0, len = hs.length; i < len; i++) {
+ delete this.handles[this.getId(hs[i], false)];
}
}
- },
+ }
+ },
- /**
- * Returns the handle registered for a DOM Node by id
+ /**
+ * 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];
- },
+ getHandle : function(id){
+ if(typeof id != "string"){ // must be element?
+ id = id.id;
+ }
+ return this.handles[id];
+ },
- /**
- * Returns the handle that is registered for the DOM node that is the target of the event
+ /**
+ * 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;
- },
+ getHandleFromEvent : function(e){
+ var t = e.getTarget();
+ return t ? this.handles[t.id] : null;
+ },
- /**
- * Returns a custom data object that is registered for a DOM node by id
+ /**
+ * 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];
- },
+ getTarget : function(id){
+ if(typeof id != "string"){ // must be element?
+ id = id.id;
+ }
+ return this.elements[id];
+ },
- /**
- * Returns a custom data object that is registered for the DOM node that is the target of the event
+ /**
+ * 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;
- }
- };
-}();
+ getTargetFromEvent : function(e){
+ var t = e.getTarget();
+ return t ? this.elements[t.id] || this.handles[t.id] : null;
+ }
+});