tree.js

ext-2.3.0

if(this.doPreload(node)){if(typeof callback=="function"){callback();}}else if(this.dataUrl||this.url){this.requestData(node,callback);}},doPreload:function(node){if(node.attributes.children){if(node.childNodes.length<1){var cs=node.attributes.children;node.beginUpdate();for(var i=0,len=cs.length;i<len;i++){var cn=node.appendChild(this.createNode(cs[i]));if(this.preloadChildren){this.doPreload(cn);}}
node.endUpdate();}
return true;}else{return false;}},getParams:function(node){var buf=[],bp=this.baseParams;for(var key in bp){if(typeof bp[key]!="function"){buf.push(encodeURIComponent(key),"=",encodeURIComponent(bp[key]),"&");}}
buf.push("node=",encodeURIComponent(node.id));return buf.join("");},requestData:function(node,callback){if(this.fireEvent("beforeload",this,node,callback)!==false){this.transId=Ext.Ajax.request({method:this.requestMethod,url:this.dataUrl||this.url,success:this.handleResponse,failure:this.handleFailure,scope:this,argument:{callback:callback,node:node},params:this.getParams(node)});}else{if(typeof callback=="function"){callback();}}},isLoading:function(){return!!this.transId;},abort:function(){if(this.isLoading()){Ext.Ajax.abort(this.transId);}},createNode:function(attr){if(this.baseAttrs){Ext.applyIf(attr,this.baseAttrs);}
if(this.applyLoader!==false){attr.loader=this;}
if(typeof attr.uiProvider=='string'){attr.uiProvider=this.uiProviders[attr.uiProvider]||eval(attr.uiProvider);}
if(attr.nodeType){return new Ext.tree.TreePanel.nodeTypes[attr.nodeType](attr);}else{return attr.leaf?new Ext.tree.TreeNode(attr):new Ext.tree.AsyncTreeNode(attr);}},processResponse:function(response,node,callback){var json=response.responseText;try{var o=eval("("+json+")");node.beginUpdate();for(var i=0,len=o.length;i<len;i++){var n=this.createNode(o[i]);if(n){node.appendChild(n);}}
node.endUpdate();if(typeof callback=="function"){callback(this,node);}}catch(e){this.handleFailure(response);}},handleResponse:function(response){this.transId=false;var a=response.argument;this.processResponse(response,a.node,a.callback);this.fireEvent("load",this,a.node,response);},handleFailure:function(response){this.transId=false;var a=response.argument;this.fireEvent("loadexception",this,a.node,response);if(typeof a.callback=="function"){a.callback(this,a.node);}}});

Ext.tree.TreeFilter=function(tree,config){this.tree=tree;this.filtered={};Ext.apply(this,config);};Ext.tree.TreeFilter.prototype={clearBlank:false,reverse:false,autoClear:false,remove:false,filter:function(value,attr,startNode){attr=attr||"text";var f;if(typeof value=="string"){var vlen=value.length;if(vlen==0&&this.clearBlank){this.clear();return;}
value=value.toLowerCase();f=function(n){return n.attributes[attr].substr(0,vlen).toLowerCase()==value;};}else if(value.exec){f=function(n){return value.test(n.attributes[attr]);};}else{throw'Illegal filter type, must be string or regex';}
this.filterBy(f,null,startNode);},filterBy:function(fn,scope,startNode){startNode=startNode||this.tree.root;if(this.autoClear){this.clear();}
var af=this.filtered,rv=this.reverse;var f=function(n){if(n==startNode){return true;}
if(af[n.id]){return false;}
var m=fn.call(scope||n,n);if(!m||rv){af[n.id]=n;n.ui.hide();return false;}
return true;};startNode.cascade(f);if(this.remove){for(var id in af){if(typeof id!="function"){var n=af[id];if(n&&n.parentNode){n.parentNode.removeChild(n);}}}}},clear:function(){var t=this.tree;var af=this.filtered;for(var id in af){if(typeof id!="function"){var n=af[id];if(n){n.ui.show();}}}
this.filtered={};}};

Ext.tree.TreeSorter=function(tree,config){Ext.apply(this,config);tree.on("beforechildrenrendered",this.doSort,this);tree.on("append",this.updateSort,this);tree.on("insert",this.updateSort,this);tree.on("textchange",this.updateSortParent,this);var dsc=this.dir&&this.dir.toLowerCase()=="desc";var p=this.property||"text";var sortType=this.sortType;var fs=this.folderSort;var cs=this.caseSensitive===true;var leafAttr=this.leafAttr||'leaf';this.sortFn=function(n1,n2){if(fs){if(n1.attributes[leafAttr]&&!n2.attributes[leafAttr]){return 1;}
if(!n1.attributes[leafAttr]&&n2.attributes[leafAttr]){return-1;}}
var v1=sortType?sortType(n1):(cs?n1.attributes[p]:n1.attributes[p].toUpperCase());var v2=sortType?sortType(n2):(cs?n2.attributes[p]:n2.attributes[p].toUpperCase());if(v1<v2){return dsc?+1:-1;}else if(v1>v2){return dsc?-1:+1;}else{return 0;}};};Ext.tree.TreeSorter.prototype={doSort:function(node){node.sort(this.sortFn);},compareNodes:function(n1,n2){return(n1.text.toUpperCase()>n2.text.toUpperCase()?1:-1);},updateSort:function(tree,node){if(node.childrenRendered){this.doSort.defer(1,this,[node]);}},updateSortParent:function(node){var p=node.parentNode;if(p&&p.childrenRendered){this.doSort.defer(1,this,[p]);}}};

if(Ext.dd.DropZone){Ext.tree.TreeDropZone=function(tree,config){this.allowParentInsert=config.allowParentInsert||false;this.allowContainerDrop=config.allowContainerDrop||false;this.appendOnly=config.appendOnly||false;Ext.tree.TreeDropZone.superclass.constructor.call(this,tree.getTreeEl(),config);this.tree=tree;this.dragOverData={};this.lastInsertClass="x-tree-no-status";};Ext.extend(Ext.tree.TreeDropZone,Ext.dd.DropZone,{ddGroup:"TreeDD",expandDelay:1000,expandNode:function(node){if(node.hasChildNodes()&&!node.isExpanded()){node.expand(false,null,this.triggerCacheRefresh.createDelegate(this));}},queueExpand:function(node){this.expandProcId=this.expandNode.defer(this.expandDelay,this,[node]);},cancelExpand:function(){if(this.expandProcId){clearTimeout(this.expandProcId);this.expandProcId=false;}},isValidDropPoint:function(n,pt,dd,e,data){if(!n||!data){return false;}
var targetNode=n.node;var dropNode=data.node;if(!(targetNode&&targetNode.isTarget&&pt)){return false;}
if(pt=="append"&&targetNode.allowChildren===false){return false;}
if((pt=="above"||pt=="below")&&(targetNode.parentNode&&targetNode.parentNode.allowChildren===false)){return false;}
if(dropNode&&(targetNode==dropNode||dropNode.contains(targetNode))){return false;}
var overEvent=this.dragOverData;overEvent.tree=this.tree;overEvent.target=targetNode;overEvent.data=data;overEvent.point=pt;overEvent.source=dd;overEvent.rawEvent=e;overEvent.dropNode=dropNode;overEvent.cancel=false;var result=this.tree.fireEvent("nodedragover",overEvent);return overEvent.cancel===false&&result!==false;},getDropPoint:function(e,n,dd){var tn=n.node;if(tn.isRoot){return tn.allowChildren!==false?"append":false;}
var dragEl=n.ddel;var t=Ext.lib.Dom.getY(dragEl),b=t+dragEl.offsetHeight;var y=Ext.lib.Event.getPageY(e);var noAppend=tn.allowChildren===false||tn.isLeaf();if(this.appendOnly||tn.parentNode.allowChildren===false){return noAppend?false:"append";}
var noBelow=false;if(!this.allowParentInsert){noBelow=tn.hasChildNodes()&&tn.isExpanded();}
var q=(b-t)/(noAppend?2:3);if(y>=t&&y<(t+q)){return"above";}else if(!noBelow&&(noAppend||y>=b-q&&y<=b)){return"below";}else{return"append";}},onNodeEnter:function(n,dd,e,data){this.cancelExpand();},onContainerOver:function(dd,e,data){if(this.allowContainerDrop&&this.isValidDropPoint({ddel:this.tree.getRootNode().ui.elNode,node:this.tree.getRootNode()},"append",dd,e,data)){return this.dropAllowed;}
return this.dropNotAllowed;},onNodeOver:function(n,dd,e,data){var pt=this.getDropPoint(e,n,dd);var node=n.node;if(!this.expandProcId&&pt=="append"&&node.hasChildNodes()&&!n.node.isExpanded()){this.queueExpand(node);}else if(pt!="append"){this.cancelExpand();}
var returnCls=this.dropNotAllowed;if(this.isValidDropPoint(n,pt,dd,e,data)){if(pt){var el=n.ddel;var cls;if(pt=="above"){returnCls=n.node.isFirst()?"x-tree-drop-ok-above":"x-tree-drop-ok-between";cls="x-tree-drag-insert-above";}else if(pt=="below"){returnCls=n.node.isLast()?"x-tree-drop-ok-below":"x-tree-drop-ok-between";cls="x-tree-drag-insert-below";}else{returnCls="x-tree-drop-ok-append";cls="x-tree-drag-append";}
if(this.lastInsertClass!=cls){Ext.fly(el).replaceClass(this.lastInsertClass,cls);this.lastInsertClass=cls;}}}
return returnCls;},onNodeOut:function(n,dd,e,data){this.cancelExpand();this.removeDropIndicators(n);},onNodeDrop:function(n,dd,e,data){var point=this.getDropPoint(e,n,dd);var targetNode=n.node;targetNode.ui.startDrop();if(!this.isValidDropPoint(n,point,dd,e,data)){targetNode.ui.endDrop();return false;}
var dropNode=data.node||(dd.getTreeNode?dd.getTreeNode(data,targetNode,point,e):null);return this.processDrop(targetNode,data,point,dd,e,dropNode);},onContainerDrop:function(dd,e,data){if(this.allowContainerDrop&&this.isValidDropPoint({ddel:this.tree.getRootNode().ui.elNode,node:this.tree.getRootNode()},"append",dd,e,data)){var targetNode=this.tree.getRootNode();targetNode.ui.startDrop();var dropNode=data.node||(dd.getTreeNode?dd.getTreeNode(data,targetNode,'append',e):null);return this.processDrop(targetNode,data,'append',dd,e,dropNode);}
return false;},processDrop:function(target,data,point,dd,e,dropNode){var dropEvent={tree:this.tree,target:target,data:data,point:point,source:dd,rawEvent:e,dropNode:dropNode,cancel:!dropNode,dropStatus:false};var retval=this.tree.fireEvent("beforenodedrop",dropEvent);if(retval===false||dropEvent.cancel===true||!dropEvent.dropNode){target.ui.endDrop();return dropEvent.dropStatus;}
target=dropEvent.target;if(point=='append'&&!target.isExpanded()){target.expand(false,null,function(){this.completeDrop(dropEvent);}.createDelegate(this));}else{this.completeDrop(dropEvent);}
return true;},completeDrop:function(de){var ns=de.dropNode,p=de.point,t=de.target;if(!Ext.isArray(ns)){ns=[ns];}
var n;for(var i=0,len=ns.length;i<len;i++){n=ns[i];if(p=="above"){t.parentNode.insertBefore(n,t);}else if(p=="below"){t.parentNode.insertBefore(n,t.nextSibling);}else{t.appendChild(n);}}
n.ui.focus();if(Ext.enableFx&&this.tree.hlDrop){n.ui.highlight();}
t.ui.endDrop();this.tree.fireEvent("nodedrop",de);},afterNodeMoved:function(dd,data,e,targetNode,dropNode){if(Ext.enableFx&&this.tree.hlDrop){dropNode.ui.focus();dropNode.ui.highlight();}
this.tree.fireEvent("nodedrop",this.tree,targetNode,data,dd,e);},getTree:function(){return this.tree;},removeDropIndicators:function(n){if(n&&n.ddel){var el=n.ddel;Ext.fly(el).removeClass(["x-tree-drag-insert-above","x-tree-drag-insert-below","x-tree-drag-append"]);this.lastInsertClass="_noclass";}},beforeDragDrop:function(target,e,id){this.cancelExpand();return true;},afterRepair:function(data){if(data&&Ext.enableFx){data.node.ui.highlight();}
this.hideProxy();}});}

if(Ext.dd.DragZone){Ext.tree.TreeDragZone=function(tree,config){Ext.tree.TreeDragZone.superclass.constructor.call(this,tree.innerCt,config);this.tree=tree;};Ext.extend(Ext.tree.TreeDragZone,Ext.dd.DragZone,{ddGroup:"TreeDD",onBeforeDrag:function(data,e){var n=data.node;return n&&n.draggable&&!n.disabled;},onInitDrag:function(e){var data=this.dragData;this.tree.getSelectionModel().select(data.node);this.tree.eventModel.disable();this.proxy.update("");data.node.ui.appendDDGhost(this.proxy.ghost.dom);this.tree.fireEvent("startdrag",this.tree,data.node,e);},getRepairXY:function(e,data){return data.node.ui.getDDRepairXY();},onEndDrag:function(data,e){this.tree.eventModel.enable.defer(100,this.tree.eventModel);this.tree.fireEvent("enddrag",this.tree,data.node,e);},onValidDrop:function(dd,e,id){this.tree.fireEvent("dragdrop",this.tree,this.dragData.node,dd,e);this.hideProxy();},beforeInvalidDrop:function(e,id){var sm=this.tree.getSelectionModel();sm.clearSelections();sm.select(this.dragData.node);},afterRepair:function(){if(Ext.enableFx&&this.tree.hlDrop){Ext.Element.fly(this.dragData.ddel).highlight(this.hlColor||"c3daf9");}
this.dragging=false;}});}

Ext.tree.TreeEditor=function(tree,fc,config){fc=fc||{};var field=fc.events?fc:new Ext.form.TextField(fc);Ext.tree.TreeEditor.superclass.constructor.call(this,field,config);this.tree=tree;if(!tree.rendered){tree.on('render',this.initEditor,this);}else{this.initEditor(tree);}};Ext.extend(Ext.tree.TreeEditor,Ext.Editor,{alignment:"l-l",autoSize:false,hideEl:false,cls:"x-small-editor x-tree-editor",shim:false,shadow:"frame",maxWidth:250,editDelay:350,initEditor:function(tree){tree.on('beforeclick',this.beforeNodeClick,this);tree.on('dblclick',this.onNodeDblClick,this);this.on('complete',this.updateNode,this);this.on('beforestartedit',this.fitToTree,this);this.on('startedit',this.bindScroll,this,{delay:10});this.on('specialkey',this.onSpecialKey,this);},fitToTree:function(ed,el){var td=this.tree.getTreeEl().dom,nd=el.dom;if(td.scrollLeft>nd.offsetLeft){td.scrollLeft=nd.offsetLeft;}
var w=Math.min(this.maxWidth,(td.clientWidth>20?td.clientWidth:td.offsetWidth)-Math.max(0,nd.offsetLeft-td.scrollLeft)-5);this.setSize(w,'');},triggerEdit:function(node,defer){this.completeEdit();if(node.attributes.editable!==false){this.editNode=node;if(this.tree.autoScroll){Ext.fly(node.ui.getEl()).scrollIntoView(this.tree.body);}
var value=node.text||'';if(!Ext.isGecko&&Ext.isEmpty(node.text)){node.setText('&nbsp;');}
this.autoEditTimer=this.startEdit.defer(this.editDelay,this,[node.ui.textNode,value]);return false;}},bindScroll:function(){this.tree.getTreeEl().on('scroll',this.cancelEdit,this);},beforeNodeClick:function(node,e){clearTimeout(this.autoEditTimer);if(this.tree.getSelectionModel().isSelected(node)){e.stopEvent();return this.triggerEdit(node);}},onNodeDblClick:function(node,e){clearTimeout(this.autoEditTimer);},updateNode:function(ed,value){this.tree.getTreeEl().un('scroll',this.cancelEdit,this);this.editNode.setText(value);},onHide:function(){Ext.tree.TreeEditor.superclass.onHide.call(this);if(this.editNode){this.editNode.ui.focus.defer(50,this.editNode.ui);}},onSpecialKey:function(field,e){var k=e.getKey();if(k==e.ESC){e.stopEvent();this.cancelEdit();}else if(k==e.ENTER&&!e.hasModifier()){e.stopEvent();this.completeEdit();}}});