老生常谈combobox和combotree模糊查询
FIRST
/** * combobox和combotree模糊查询 * combotree 结果显示两级父节点(手动设置数量) * 键盘上下键选择叶子节点 * 键盘回车键设置文本的值 */ (function(){ //combobox可编辑，自定义模糊查询 $.fn.combobox.defaults.editable = true; $.fn.combobox.defaults.filter = function(q, row){ var opts = $(this).combobox('options'); return row[opts.textField].indexOf(q) >= 0; }; //combotree可编辑，自定义模糊查询 $.fn.combotree.defaults.editable = true; //选中行索引 var leafBlockIndex=0; //当前选中行索引 var nowLeafBlockIndex=-1; //combotree 组件 var comboTree=null; //叶子节点DOM Array var leafBlocks=null;; //将所有的结果叶子节点放入 DOM Array中 function getDOMArray(data){ comboTree = $(data).combotree('tree'); leafBlocks=new Array(); var leafs = comboTree.tree('getChildren'); for (var i = 0; i < leafs.length; i++) { var leaf = leafs[i]; var dis =$(leaf.target).css('display')+''; if('block' == dis){ if(comboTree.tree('isLeaf',leaf.target)){ leafBlocks.push(leaf.target); } } }; }; //------------------------------------- $.extend($.fn.combotree.defaults.keyHandler,{ up:function(e){ leafBlockIndex=nowLeafBlockIndex; leafBlockIndex--; getDOMArray(this); if(leafBlockIndex <0){ leafBlockIndex=leafBlocks.length-1; } comboTree.tree('select',leafBlocks[leafBlockIndex]); // easyui 1.3.4版开始可用 // comboTree.tree('scrollTo',leafBlocks[leafBlockIndex]); nowLeafBlockIndex=leafBlockIndex; }, down:function(e){ leafBlockIndex=nowLeafBlockIndex; leafBlockIndex++; getDOMArray(this); if(leafBlockIndex >= leafBlocks.length){ leafBlockIndex=0; } comboTree.tree('select',leafBlocks[leafBlockIndex]); // easyui 1.3.4版开始可用 // comboTree.tree('scrollTo',leafBlocks[leafBlockIndex]); nowLeafBlockIndex=leafBlockIndex; }, left: function(e){ console.log('left'); // var val = $(this).combo('getText'); // $(this).combo('setText',val+' '); }, right: function(e){ console.log('right'); // var val = $(this).combo('getText'); // console.log(val); // $(this).combo('setText',val+' '); }, enter:function(e){ var leaf =$(leafBlocks[nowLeafBlockIndex]); var value =leaf.children('span').last().text(); $(this).combo('setText',value); $(this).combo('hidePanel') }, query:function(q){ var t = $(this).combotree('tree'); var nodes = t.tree('getChildren'); for(var i=0; i<nodes.length; i++){ var node = nodes[i]; if (node.text.indexOf(q) >= 0){ $(node.target).show(); var parent=t.tree('getParent',node.target); if(parent){ $(parent.target).show(); if(parent){ parent=t.tree('getParent',parent.target); $(parent.target).show(); } } } else { $(node.target).hide(); } } var opts = $(this).combotree('options'); if (!opts.hasSetEvents){ opts.hasSetEvents = true; var onShowPanel = opts.onShowPanel; opts.onShowPanel = function(){ var nodes = t.tree('getChildren'); for(var i=0; i<nodes.length; i++){ $(nodes[i].target).show(); } onShowPanel.call(this); }; $(this).combo('options').onShowPanel = opts.onShowPanel; } } }); })(jQuery);
SECOND
(function ($) { //combotree可编辑，自定义模糊查询 $.fn.combotree.defaults.editable = true; $.extend($.fn.combotree.defaults.keyHandler, { query: function (q) { var t = $(this).combotree('tree'); t.tree("search", q); } }); $.extend($.fn.tree.methods, { /** * 扩展easyui tree的搜索方法 * @param tree easyui tree的根DOM节点(UL节点)的jQuery对象 * @param searchText 检索的文本 * @param this-context easyui tree的tree对象 */ search: function (jqTree, searchText) { //easyui tree的tree对象。可以通过tree.methodName(jqTree)方式调用easyui tree的方法 var tree = this; //获取所有的树节点 var nodeList = getAllNodes(jqTree, tree); //如果没有搜索条件，则展示所有树节点 searchText = $.trim(searchText); if (searchText == "") { for (var i = 0; i < nodeList.length; i++) { $(".tree-node-targeted", nodeList[i].target).removeClass("tree-node-targeted"); $(nodeList[i].target).show(); } //展开已选择的节点（如果之前选择了） var selectedNode = tree.getSelected(jqTree); if (selectedNode) { tree.expandTo(jqTree, selectedNode.target); } return; } //搜索匹配的节点并高亮显示 var matchedNodeList = []; if (nodeList && nodeList.length > 0) { var node = null; for (var i = 0; i < nodeList.length; i++) { node = nodeList[i]; if (isMatch(searchText, node.text)) { matchedNodeList.push(node); } } //隐藏所有节点 for (var i = 0; i < nodeList.length; i++) { $(".tree-node-targeted", nodeList[i].target).removeClass("tree-node-targeted"); $(nodeList[i].target).hide(); } //折叠所有节点 tree.collapseAll(jqTree); //展示所有匹配的节点以及父节点 for (var i = 0; i < matchedNodeList.length; i++) { showMatchedNode(jqTree, tree, matchedNodeList[i]); } } }, /** * 展示节点的子节点（子节点有可能在搜索的过程中被隐藏了） * @param node easyui tree节点 */ showChildren: function (jqTree, node) { //easyui tree的tree对象。可以通过tree.methodName(jqTree)方式调用easyui tree的方法 var tree = this; //展示子节点 if (!tree.isLeaf(jqTree, node.target)) { var children = tree.getChildren(jqTree, node.target); if (children && children.length > 0) { for (var i = 0; i < children.length; i++) { if ($(children[i].target).is(":hidden")) { $(children[i].target).show(); } } } } }, /** * 将滚动条滚动到指定的节点位置，使该节点可见（如果有滚动条才滚动，没有滚动条就不滚动） * @param param { * treeContainer: easyui tree的容器（即存在滚动条的树容器）。如果为null，则取easyui tree的根UL节点的父节点。 * argetNode: 将要滚动到的easyui tree节点。如果targetNode为空，则默认滚动到当前已选中的节点，如果没有选中的节点，则不滚动 * } */ scrollTo: function (jqTree, param) { //easyui tree的tree对象。可以通过tree.methodName(jqTree)方式调用easyui tree的方法 var tree = this; //如果node为空，则获取当前选中的node var targetNode = param && param.targetNode ? param.targetNode : tree.getSelected(jqTree); if (targetNode != null) { //判断节点是否在可视区域 var root = tree.getRoot(jqTree); var $targetNode = $(targetNode.target); var Container = param && param.treeContainer ? param.treeContainer : jqTree.parent(); var containerH = container.height(); var nodeOffsetHeight = $targetNode.offset().top - container.offset().top; if (nodeOffsetHeight > (containerH - 30)) { var scrollHeight = container.scrollTop() + nodeOffsetHeight - containerH + 30; container.scrollTop(scrollHeight); } } } }); /** * 展示搜索匹配的节点 */ function showMatchedNode(jqTree, tree, node) { //展示所有父节点 $(node.target).show(); $(".tree-title", node.target).addClass("tree-node-targeted"); var pNode = node; while ((pNode = tree.getParent(jqTree, pNode.target))) { $(pNode.target).show(); } //展开到该节点 tree.expandTo(jqTree, node.target); //如果是非叶子节点，需折叠该节点的所有子节点 if (!tree.isLeaf(jqTree, node.target)) { tree.collapse(jqTree, node.target); } } /** * 判断searchText是否与targetText匹配 * @param searchText 检索的文本 * @param targetText 目标文本 * @return true-检索的文本与目标文本匹配；否则为false. */ function isMatch(searchText, targetText) { return $.trim(targetText) != "" && targetText.indexOf(searchText) != -1; } /** * 获取easyui tree的所有node节点 */ function getAllNodes(jqTree, tree) { var allNodeList = jqTree.data("allNodeList"); if (!allNodeList) { var roots = tree.getRoots(jqTree); allNodeList = getChildNodeList(jqTree, tree, roots); jqTree.data("allNodeList", allNodeList); } return allNodeList; } /** * 定义获取easyui tree的子节点的递归算法 */ function getChildNodeList(jqTree, tree, nodes) { var childNodeList = []; if (nodes && nodes.length > 0) { var node = null; for (var i = 0; i < nodes.length; i++) { node = nodes[i]; childNodeList.push(node); if (!tree.isLeaf(jqTree, node.target)) { var children = tree.getChildren(jqTree, node.target); childNodeList = childNodeList.concat(getChildNodeList(jqTree, tree, children)); } } } return childNodeList; } })(jQuery);
以上这篇老生常谈combobox和combotree模糊查询就是小编分享给大家的全部内容了，希望能给大家一个参考。
原文链接：http://www.jb51.net/article/111297.htm
