Diffstat (limited to 'frontend/beta/js/YUI-extensions/tree/TreeFilter.js') (more/less context) (show whitespace changes)
| -rw-r--r-- | frontend/beta/js/YUI-extensions/tree/TreeFilter.js | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/frontend/beta/js/YUI-extensions/tree/TreeFilter.js b/frontend/beta/js/YUI-extensions/tree/TreeFilter.js new file mode 100644 index 0000000..9eeb274 --- a/dev/null +++ b/frontend/beta/js/YUI-extensions/tree/TreeFilter.js | |||
| @@ -0,0 +1,105 @@ | |||
| 1 | /** | ||
| 2 | * This doesn't update the indent (lines) or expand collapse icons of the nodes | ||
| 3 | */ | ||
| 4 | YAHOO.ext.tree.TreeFilter = function(tree, config){ | ||
| 5 | this.tree = tree; | ||
| 6 | this.filtered = {}; | ||
| 7 | YAHOO.ext.util.Config.apply(this, config, { | ||
| 8 | clearBlank:false, | ||
| 9 | reverse:false, | ||
| 10 | autoClear:false, | ||
| 11 | remove:false | ||
| 12 | }); | ||
| 13 | }; | ||
| 14 | |||
| 15 | YAHOO.ext.tree.TreeFilter.prototype = { | ||
| 16 | /** | ||
| 17 | * Filter the data by a specific attribute. | ||
| 18 | * @param {String/RegExp} value Either string that the attribute value | ||
| 19 | * should start with or a RegExp to test against the attribute | ||
| 20 | * @param {String} attr (optional) The attribute passed in your node's attributes collection. Defaults to "text". | ||
| 21 | * @param {TreeNode} startNode (optional) The node to start the filter at. | ||
| 22 | */ | ||
| 23 | filter : function(value, attr, startNode){ | ||
| 24 | attr = attr || 'text'; | ||
| 25 | var f; | ||
| 26 | if(typeof value == 'string'){ | ||
| 27 | var vlen = value.length; | ||
| 28 | // auto clear empty filter | ||
| 29 | if(vlen == 0 && this.clearBlank){ | ||
| 30 | this.clearFilter(); | ||
| 31 | return; | ||
| 32 | } | ||
| 33 | value = value.toLowerCase(); | ||
| 34 | f = function(n){ | ||
| 35 | return n.attributes[attr].substr(0, vlen).toLowerCase() == value; | ||
| 36 | } | ||
| 37 | }else if(value.exec){ // regex? | ||
| 38 | f = function(n){ | ||
| 39 | return value.test(n.attributes[attr]); | ||
| 40 | } | ||
| 41 | }else{ | ||
| 42 | throw 'Illegal filter type, must be string or regex'; | ||
| 43 | } | ||
| 44 | this.filterBy(f, null, startNode); | ||
| 45 | }, | ||
| 46 | |||
| 47 | /** | ||
| 48 | * Filter by a function. The passed function will be called with each | ||
| 49 | * node in the tree (or from the startNode). If the function returns true, the node is kept | ||
| 50 | * otherwise it is filtered. If a node is filtered, it's children are also filtered. | ||
| 51 | * @param {Function} fn The filter function | ||
| 52 | * @param {Object} scope (optional) The scope of the function (defaults to the current node) | ||
| 53 | */ | ||
| 54 | filterBy : function(fn, scope, startNode){ | ||
| 55 | startNode = startNode || this.tree.root; | ||
| 56 | if(this.autoClear){ | ||
| 57 | this.clearFilter(); | ||
| 58 | } | ||
| 59 | var af = this.filtered, rv = this.reverse; | ||
| 60 | var f = function(n){ | ||
| 61 | if(n == startNode){ | ||
| 62 | return true; | ||
| 63 | } | ||
| 64 | if(af[n.id]){ | ||
| 65 | return false; | ||
| 66 | } | ||
| 67 | var m = fn.call(scope || n, n); | ||
| 68 | if(!m || rv){ | ||
| 69 | af[n.id] = n; | ||
| 70 | n.ui.hide(); | ||
| 71 | return false; | ||
| 72 | } | ||
| 73 | return true; | ||
| 74 | } | ||
| 75 | startNode.cascade(f); | ||
| 76 | if(this.remove){ | ||
| 77 | for(var id in af){ | ||
| 78 | if(typeof id != 'function'){ | ||
| 79 | var n = af[id]; | ||
| 80 | if(n && n.parentNode){ | ||
| 81 | n.parentNode.removeChild(n); | ||
| 82 | } | ||
| 83 | } | ||
| 84 | } | ||
| 85 | } | ||
| 86 | }, | ||
| 87 | |||
| 88 | /** | ||
| 89 | * Clears the current filter. Note: with the "remove" option | ||
| 90 | * set a filter cannot be cleared. | ||
| 91 | */ | ||
| 92 | clear : function(){ | ||
| 93 | var t = this.tree; | ||
| 94 | var af = this.filtered; | ||
| 95 | for(var id in af){ | ||
| 96 | if(typeof id != 'function'){ | ||
| 97 | var n = af[id]; | ||
| 98 | if(n){ | ||
| 99 | n.ui.show(); | ||
| 100 | } | ||
| 101 | } | ||
| 102 | } | ||
| 103 | this.filtered = {}; | ||
| 104 | } | ||
| 105 | }; | ||