xloadtree.js实现页面树形结构js开发包

/*----------------------------------------------------------------------------\ | Cross Browser Tree Widget 1.16 | |-----------------------------------------------------------------------------| | Created by Emil A Eklund | | (http://webfx.eae.net/contact.html#emil) | | For WebFX (http://webfx.eae.net/) | |-----------------------------------------------------------------------------| | An object based tree widget, emulating the one found in microsoft windows, | | with persistence using cookies. Works in IE 5+, Mozilla and konqueror 3. | |-----------------------------------------------------------------------------| | Copyright (c) 1999 - 2002 Emil A Eklund | |-----------------------------------------------------------------------------| | This software is provided "as is", without warranty of any kind, express or | | implied, including but not limited to the warranties of merchantability, | | fitness for a particular purpose and noninfringement. In no event shall the | | authors or copyright holders be liable for any claim, damages or other | | liability, whether in an action of contract, tort or otherwise, arising | | from, out of or in connection with the software or the use or other | | dealings in the software. | | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | | This software is available under the three different licenses mentioned | | below. To use this software you must chose, and qualify, for one of those. | | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | | The WebFX Non-Commercial License http://webfx.eae.net/license.html | | Permits anyone the right to use the software in a non-commercial context | | free of charge. | | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | | The WebFX Commercial license http://webfx.eae.net/commercial.html | | Permits the license holder the right to use the software in a commercial | | context. Such license must be specifically obtained, however it's valid for | | any number of implementations of the licensed software. | | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | | GPL - The GNU General Public License http://www.gnu.org/licenses/gpl.txt | | Permits anyone the right to use and modify the software without limitations | | as long as proper credits are given and the original and modified source | | code are included. Requires that the final product, software derivate from | | the original source or any software utilizing a GPL component, such as | | this, is also licensed under the GPL license. | |-----------------------------------------------------------------------------| | Dependencies: xtree.css (To set up the CSS of the tree classes) | |-----------------------------------------------------------------------------| | 2001-01-10 | Original Version Posted. | | 2001-03-18 | Added getSelected and get/setBehavior that can make it behave | | | more like windows explorer, check usage for more information. | | 2001-09-23 | Version 1.1 - New features included keyboard navigation (ie) | | | and the ability to add and remove nodes dynamically and some | | | other small tweaks and fixes. | | 2002-01-27 | Version 1.11 - Bug fixes and improved mozilla support. | | 2002-06-11 | Version 1.12 - Fixed a bug that prevented the indentation line | | | from updating correctly under some circumstances. This bug | | | happened when removing the last item in a subtree and items in | | | siblings to the remove subtree where not correctly updated. | | 2002-06-13 | Fixed a few minor bugs cased by the 1.12 bug-fix. | | 2002-08-20 | Added usePersistence flag to allow disable of cookies. | | 2002-10-23 | (1.14) Fixed a plus icon issue | | 2002-10-29 | (1.15) Last changes broke more than they fixed. This version | | | is based on 1.13 and fixes the bugs 1.14 fixed withou breaking | | | lots of other things. | | 2003-02-15 | The selected node can now be made visible even when the tree | | | control loses focus. It uses a new class declaration in the | | | css file '.webfx-tree-item a.selected-inactive', by default it | | | puts a light-gray rectangle around the selected node. | |-----------------------------------------------------------------------------| | Created 2000-12-11 | All changes are in the log above. | Updated 2003-02-15 | \----------------------------------------------------------------------------*/ var webFXTreeConfig = { rootIcon : 'images/foldericon.png', openRootIcon : 'images/openfoldericon.png', folderIcon : 'images/foldericon.png', openFolderIcon : 'images/openfoldericon.png', fileIcon : 'images/file.png', iIcon : 'images/I.png', lIcon : 'images/L.png', lMinusIcon : 'images/Lminus.png', lPlusIcon : 'images/Lplus.png', tIcon : 'images/T.png', tMinusIcon : 'images/Tminus.png', tPlusIcon : 'images/Tplus.png', blankIcon : 'images/blank.png', defaultText : 'Tree Item', defaultAction : 'javascript:void(0);', defaultBehavior : 'classic', usePersistence : false }; var webFXTreeHandler = { idCounter : 0, idPrefix : "webfx-tree-object-", all : {}, behavior : null, selected : null, onSelect : null, /* should be part of tree, not handler */ getId : function() { return this.idPrefix + this.idCounter++; }, toggle : function (oItem) { this.all[oItem.id.replace('-plus','')].toggle(); }, select : function (oItem) { this.all[oItem.id.replace('-icon','')].select(); }, focus : function (oItem) { this.all[oItem.id.replace('-anchor','')].focus(); }, blur : function (oItem) { this.all[oItem.id.replace('-anchor','')].blur(); }, keydown : function (oItem, e) { return this.all[oItem.id].keydown(e.keyCode); }, cookies : new WebFXCookie(), insertHTMLBeforeEnd : function (oElement, sHTML) { if (oElement.insertAdjacentHTML != null) { oElement.insertAdjacentHTML("BeforeEnd", sHTML) return; } var df; // DocumentFragment var r = oElement.ownerDocument.createRange(); r.selectNodeContents(oElement); r.collapse(false); df = r.createContextualFragment(sHTML); oElement.appendChild(df); } }; /* * WebFXCookie class */ function WebFXCookie() { if (document.cookie.length) { this.cookies = ' ' + document.cookie; } } WebFXCookie.prototype.setCookie = function (key, value) { document.cookie = key + "=" + escape(value); } WebFXCookie.prototype.getCookie = function (key) { if (this.cookies) { var start = this.cookies.indexOf(' ' + key + '='); if (start == -1) { return null; } var end = this.cookies.indexOf(";", start); if (end == -1) { end = this.cookies.length; } end -= start; var cookie = this.cookies.substr(start,end); return unescape(cookie.substr(cookie.indexOf('=') + 1, cookie.length - cookie.indexOf('=') + 1)); } else { return null; } } /* * WebFXTreeAbstractNode class */ function WebFXTreeAbstractNode(sText, sAction) { this.childNodes = []; this.id = webFXTreeHandler.getId(); this.text = sText || webFXTreeConfig.defaultText