easyui做的一个模块功能有详细注释还用到zTree插件

/* * JQuery zTree core 3.4 * http://zTree.me/ * * Copyright (c) 2010 Hunter.z * * Licensed same as jquery - MIT License * http://www.opensource.org/licenses/mit-license.php * * email: hunter.z@263.net * Date: 2012-09-03 */ (function($){ var settings = {}, roots = {}, caches = {}, //default consts of core _consts = { event: { NODECREATED: "ztree_nodeCreated", CLICK: "ztree_click", EXPAND: "ztree_expand", COLLAPSE: "ztree_collapse", ASYNC_SUCCESS: "ztree_async_success", ASYNC_ERROR: "ztree_async_error" }, id: { A: "_a", ICON: "_ico", SPAN: "_span", SWITCH: "_switch", UL: "_ul" }, line: { ROOT: "root", ROOTS: "roots", CENTER: "center", BOTTOM: "bottom", NOLINE: "noline", LINE: "line" }, folder: { OPEN: "open", CLOSE: "close", DOCU: "docu" }, node: { CURSELECTED: "curSelectedNode" } }, //default setting of core _setting = { treeId: "", treeObj: null, view: { addDiyDom: null, autoCancelSelected: true, dblClickExpand: true, expandSpeed: "fast", fontCss: {}, nameIsHTML: false, selectedMulti: true, showIcon: true, showLine: true, showTitle: true }, data: { key: { children: "children", name: "name", title: "", url: "url" }, simpleData: { enable: false, idKey: "id", pIdKey: "pId", rootPId: null }, keep: { parent: false, leaf: false } }, async: { enable: false, contentType: "application/x-www-form-urlencoded", type: "post", dataType: "text", url: "", autoParam: [], otherParam: [], dataFilter: null }, callback: { beforeAsync:null, beforeClick:null, beforeRightClick:null, beforeMouseDown:null, beforeMouseUp:null, beforeExpand:null, beforeCollapse:null, beforeRemove:null, onAsyncError:null, onAsyncSuccess:null, onNodeCreated:null, onClick:null, onRightClick:null, onMouseDown:null, onMouseUp:null, onExpand:null, onCollapse:null, onRemove:null } }, //default root of core //zTree use root to save full data _initRoot = function (setting) { var r = data.getRoot(setting); if (!r) { r = {}; data.setRoot(setting, r); } r[setting.data.key.children] = []; r.expandTriggerFlag = false; r.curSelectedList = []; r.noSelection = true; r.createdNodes = []; r.zId = 0; }, //default cache of core _initCache = function(setting) { var c = data.getCache(setting); if (!c) { c = {}; data.setCache(setting, c); } c.nodes = []; c.doms = []; }, //default bindEvent of core _bindEvent = function(setting) { var o = setting.treeObj, c = consts.event; o.bind(c.NODECREATED, function (event, treeId, node) { tools.apply(setting.callback.onNodeCreated, [event, treeId, node]); }); o.bind(c.CLICK, function (event, srcEvent, treeId, node, clickFlag) { tools.apply(setting.callback.onClick, [srcEvent, treeId, node, clickFlag]); }); o.bind(c.EXPAND, function (event, treeId, node) { tools.apply(setting.callback.onExpand, [event, treeId, node]); }); o.bind(c.COLLAPSE, function (event, treeId, node) { tools.apply(setting.callback.onCollapse, [event, treeId, node]); }); o.bind(c.ASYNC_SUCCESS, function (event, treeId, node, msg) { tools.apply(setting.callback.onAsyncSuccess, [event, treeId, node, msg]); }); o.bind(c.ASYNC_ERROR, function (event, treeId, node, XMLHttpRequest, textStatus, errorThrown) { tools.apply(setting.callback.onAsyncError, [event, treeId, node, XMLHttpRequest, textStatus, errorThrown]); }); }, _unbindEvent = function(setting) { var o = setting.treeObj, c = consts.event; o.unbind(c.NODECREATED) .unbind(c.CLICK) .unbind(c.EXPAND) .unbind(c.COLLAPSE) .unbind(c.ASYNC_SUCCESS) .unbind(c.ASYNC_ERROR); }, //default event proxy of core _eventProxy = function(event) { var target = event.target, setting = data.getSetting(event.data.treeId), tId = "", node = null, nodeEventType = "", treeEventType = "", nodeEventCallback = null, treeEventCallback = null, tmp = null; if (tools.eqs(event.type, "mousedown")) { treeEventType = "mousedown"; } else if (tools.eqs(event.type, "mouseup")) { treeEventType = "mouseup"; } else if (tools.eqs(event.type, "contextmenu")) { treeEventType = "contextmenu"; } else if (tools.eqs(event.type, "click")) { if (tools.eqs(target.tagName, "span") && target.getAttribute("treeNode"+ consts.id.SWITCH) !== null) { tId = ($(target).parent("li").get(0) || $(target).parentsUntil("li").parent().get(0)).id; nodeEventType = "switchNode"; } else { tmp = tools.getMDom(setting, target, [{tagName:"a", attrName:"treeNode"+consts.id.A}]); if (tmp) { tId = ($(tmp).parent("li").get(0) || $(tmp).parentsUntil("li").parent().get(0)).id; nodeEventType = "clickNode"; } } } else if (tools.eqs(event.type, "dblclick")) { treeEventType = "dblclick"; tmp = tools.getMDom(setting, target, [{tagName:"a", attrName:"treeNode"+consts.id.A}]); if (tmp) { tId = ($(tmp).parent("li").get(0) || $(tmp).parentsUntil("li").parent().get(0)).id; nodeEventType = "switchNode"; } } if (treeEventType.length > 0 && tId.length == 0) { tmp = tools.getMDom(setting, target, [{tagName:"a", attrName:"treeNode"+consts.id.A}]); if (tmp) {tId = ($(tmp).parent("li").get(0) || $(tmp).parentsUntil("li").parent().get(0)).id;} } // event to node if (tId.length>0) { node = data.getNodeCache(setting, tId); switch (nodeEventType) { case "switchNode" : if (!node.isParent) { nodeEventType = ""; } else if (tools.eqs(event.type, "click") || (tools.eqs(event.type, "dblclick") && tools.apply(setting.view.dblClickExpand, [setting.treeId, node], setting.view.dblClickExpand))) { nodeEventCallback = handler.onSwitchNode; } else { nodeEventType = ""; } break; case "clickNode" : nodeEventCallback = handler.onClickNode; break; } } // event to zTree switch (treeEventType) { case "mousedown" : treeEventCallback = handler.onZTreeMousedown; break; case "mouseup" : treeEventCallback = handler.onZTreeMouseup; break; case "dblclick" : treeEventCallback = handler.onZTreeDblclick; break; case "contextmenu" : treeEventCallback = handler.onZTreeContextmenu; break; } var proxyResult = { stop: false, node: node, nodeEventType: nodeEventType, nodeEventCallback: nodeEventCallback, treeEventType: treeEventType, treeEventCallback: treeEventCallback }; return proxyResult }, //default init node of core _initNode = function(setting, level, n, parentNode, isFirstNode, isLastNode, openFlag) { if (!n) return; var r = data.getRoot(setting), childKey = setting.data.key.children; n.level = level; n.tId = setting.treeId + "_" + (++r.zId); n.parentTId = parentNode ? parentNode.tId : null; if (n[childKey] && n[childKey].length > 0) { if (typeof n.open == "string") n.open = tools.eqs(n.open, "true"); n.open = !!n.open; n.isParent = true; n.zAsync = true; } else { n.open = false; if (typeof n.isParent == "string") n.isParent = tools.eqs(n.isParent, "true"); n.isParent = !!n.isParent; n.zAsync = !n.isParent; } n.isFirstNode = isFirstNode; n.isLastNode = isLastNode; n.getParentNode = function() {return data.getNodeCache(setting, n.parentTId);}; n.getPreNode = function() {return data.getPreNode(setting, n);}; n.getNextNode = function() {return data.getNextNode(setting, n);}; n.isAjaxing = false; data.fixPIdKeyValue(setting, n); }, _init = { bind: [_bindEvent], unbind: [_unbindEvent],