|
|
/* * Ext JS Library 2.2 * Copyright(c) 2006-2008, Ext JS, LLC. * licensing@extjs.com * * http://extjs.com/license
*/
Ext.data.Tree=function(A){this.nodeHash={};this.root=null;if(A){this.setRootNode(A)}this.addEvents("append","remove","move","insert","beforeappend","beforeremove","beforemove","beforeinsert");Ext.data.Tree.superclass.constructor.call(this)};Ext.extend(Ext.data.Tree,Ext.util.Observable,{pathSeparator:"/",proxyNodeEvent:function(){return this.fireEvent.apply(this,arguments)},getRootNode:function(){return this.root},setRootNode:function(A){this.root=A;A.ownerTree=this;A.isRoot=true;this.registerNode(A);return A},getNodeById:function(A){return this.nodeHash[A]},registerNode:function(A){this.nodeHash[A.id]=A},unregisterNode:function(A){delete this.nodeHash[A.id]},toString:function(){return"[Tree"+(this.id?" "+this.id:"")+"]"}});Ext.data.Node=function(A){this.attributes=A||{};this.leaf=this.attributes.leaf;this.id=this.attributes.id;if(!this.id){this.id=Ext.id(null,"ynode-");this.attributes.id=this.id}this.childNodes=[];if(!this.childNodes.indexOf){this.childNodes.indexOf=function(D){for(var C=0,B=this.length;C<B;C++){if(this[C]==D){return C}}return -1}}this.parentNode=null;this.firstChild=null;this.lastChild=null;this.previousSibling=null;this.nextSibling=null;this.addEvents({"append":true,"remove":true,"move":true,"insert":true,"beforeappend":true,"beforeremove":true,"beforemove":true,"beforeinsert":true});this.listeners=this.attributes.listeners;Ext.data.Node.superclass.constructor.call(this)};Ext.extend(Ext.data.Node,Ext.util.Observable,{fireEvent:function(B){if(Ext.data.Node.superclass.fireEvent.apply(this,arguments)===false){return false}var A=this.getOwnerTree();if(A){if(A.proxyNodeEvent.apply(A,arguments)===false){return false}}return true},isLeaf:function(){return this.leaf===true},setFirstChild:function(A){this.firstChild=A},setLastChild:function(A){this.lastChild=A},isLast:function(){return(!this.parentNode?true:this.parentNode.lastChild==this)},isFirst:function(){return(!this.parentNode?true:this.parentNode.firstChild==this)},hasChildNodes:function(){return !this.isLeaf()&&this.childNodes.length>0},isExpandable:function(){return this.attributes.expandable||this.hasChildNodes()},appendChild:function(E){var F=false;if(Ext.isArray(E)){F=E}else{if(arguments.length>1){F=arguments}}if(F){for(var D=0,A=F.length;D<A;D++){this.appendChild(F[D])}}else{if(this.fireEvent("beforeappend",this.ownerTree,this,E)===false){return false}var B=this.childNodes.length;var C=E.parentNode;if(C){if(E.fireEvent("beforemove",E.getOwnerTree(),E,C,this,B)===false){return false}C.removeChild(E)}B=this.childNodes.length;if(B==0){this.setFirstChild(E)}this.childNodes.push(E);E.parentNode=this;var G=this.childNodes[B-1];if(G){E.previousSibling=G;G.nextSibling=E}else{E.previousSibling=null}E.nextSibling=null;this.setLastChild(E);E.setOwnerTree(this.getOwnerTree());this.fireEvent("append",this.ownerTree,this,E,B);if(C){E.fireEvent("move",this.ownerTree,E,C,this,B)}return E}},removeChild:function(B){var A=this.childNodes.indexOf(B);if(A==-1){return false}if(this.fireEvent("beforeremove",this.ownerTree,this,B)===false){return false}this.childNodes.splice(A,1);if(B.previousSibling){B.previousSibling.nextSibling=B.nextSibling}if(B.nextSibling){B.nextSibling.previousSibling=B.previousSibling}if(this.firstChild==B){this.setFirstChild(B.nextSibling)}if(this.lastChild==B){this.setLastChild(B.previousSibling)}B.setOwnerTree(null);B.parentNode=null;B.previousSibling=null;B.nextSibling=null;this.fireEvent("remove",this.ownerTree,this,B);return B},insertBefore:function(D,A){if(!A){return this.appendChild(D)}if(D==A){return false}if(this.fireEvent("beforeinsert",this.ownerTree,this,D,A)===false){return false}var B=this.childNodes.indexOf(A);var C=D.parentNode;var E=B;if(C==this&&this.childNodes.indexOf(D)<B){E--}if(C){if(D.fireEvent("beforemove",D.getOwnerTree(),D,C,this,B,A)===false){return false}C.removeChild(D)}if(E==0){this.setFirstChild(D)}this.childNodes.splice(E,0,D);D.parentNode=this;var F=this.childNodes[E-1];if(F){D.previousSibling=F;F.nextSibling=D}else{D.previousSibling=null}D.nextSibling=A;A.previousSibling=D;D.setOwnerTree(this.getOwnerTree());thi
|
