/*!
- * Ext JS Library 3.3.1
- * Copyright(c) 2006-2010 Sencha Inc.
- * licensing@sencha.com
- * http://www.sencha.com/license
- */
-/**
- * @class Ext.tree.TreeFilter
- * Note this class is experimental and doesn't update the indent (lines) or expand collapse icons of the nodes
- * @param {TreePanel} tree
- * @param {Object} config (optional)
- */
-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 the data by a specific attribute.
- * @param {String/RegExp} value Either string that the attribute value
- * should start with or a RegExp to test against the attribute
- * @param {String} attr (optional) The attribute passed in your node's attributes collection. Defaults to "text".
- * @param {TreeNode} startNode (optional) The node to start the filter at.
- */
- filter : function(value, attr, startNode){
- attr = attr || "text";
- var f;
- if(typeof value == "string"){
- var vlen = value.length;
- // auto clear empty filter
- 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){ // regex?
- f = function(n){
- return value.test(n.attributes[attr]);
- };
- }else{
- throw 'Illegal filter type, must be string or regex';
- }
- this.filterBy(f, null, startNode);
- },
-
- /**
- * Filter by a function. The passed function will be called with each
- * node in the tree (or from the startNode). If the function returns true, the node is kept
- * otherwise it is filtered. If a node is filtered, its children are also filtered.
- * @param {Function} fn The filter function
- * @param {Object} scope (optional) The scope (this reference) in which the function is executed. Defaults to the current Node.
- */
- 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);
- }
- }
- }
- }
- },
-
- /**
- * Clears the current filter. Note: with the "remove" option
- * set a filter cannot be cleared.
- */
- 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 = {};
- }
-};
-