www.gusucode.com > 一个JSP CMS文章管理系统源码源码程序 > 一个JSP CMS文章管理系统源码/CMS4J/CMS4J/ROOT/js/tree/xtree.js
/*----------------------------------------------------------------------------\
| Cross Browser Tree Widget 1.17 |
|-----------------------------------------------------------------------------|
| 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) 2000, 2001, 2002, 2003, 2006 Emil A Eklund |
|-----------------------------------------------------------------------------|
| Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| use this file except in compliance with the License. You may obtain a copy |
| of the License at http://www.apache.org/licenses/LICENSE-2.0 |
| - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| License for the specific language governing permissions and limitations |
| under the 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. |
| 2003-03-16 | Adding target support after lots of lobbying... |
| 2006-05-26 | Changed license to Apache Software License 2.0. |
|-----------------------------------------------------------------------------|
| Created 2000-12-11 | All changes are in the log above. | Updated 2006-05-26 |
\----------------------------------------------------------------------------*/
var webFXTreeConfig = {
rootIcon : 'tree_images/rooticon.gif',
openRootIcon : 'tree_images/openrooticon.gif',
folderIcon : 'tree_images/foldericon.gif',
openFolderIcon : 'tree_images/openfoldericon.gif',
fileIcon : 'tree_images/file.png',
iIcon : 'tree_images/I.png',
lIcon : 'tree_images/L.png',
lMinusIcon : 'tree_images/Lminus.png',
lPlusIcon : 'tree_images/Lplus.png',
tIcon : 'tree_images/T.png',
tMinusIcon : 'tree_images/Tminus.png',
tPlusIcon : 'tree_images/Tplus.png',
blankIcon : 'tree_images/blank.png',
defaultText : 'Tree Item',
defaultAction : 'javascript:void(0);',
defaultBehavior : 'classic',
usePersistence : true
};
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;
this.action = sAction || webFXTreeConfig.defaultAction;
this._last = false;
webFXTreeHandler.all[this.id] = this;
}
/*
* To speed thing up if you're adding multiple nodes at once (after load)
* use the bNoIdent parameter to prevent automatic re-indentation and call
* the obj.ident() method manually once all nodes has been added.
*/
WebFXTreeAbstractNode.prototype.add = function (node, bNoIdent) {
node.parentNode = this;
this.childNodes[this.childNodes.length] = node;
var root = this;
if (this.childNodes.length >= 2) {
this.childNodes[this.childNodes.length - 2]._last = false;
}
while (root.parentNode) { root = root.parentNode; }
if (root.rendered) {
if (this.childNodes.length >= 2) {
document.getElementById(this.childNodes[this.childNodes.length - 2].id + '-plus').src = ((this.childNodes[this.childNodes.length -2].folder)?((this.childNodes[this.childNodes.length -2].open)?webFXTreeConfig.tMinusIcon:webFXTreeConfig.tPlusIcon):webFXTreeConfig.tIcon);
this.childNodes[this.childNodes.length - 2].plusIcon = webFXTreeConfig.tPlusIcon;
this.childNodes[this.childNodes.length - 2].minusIcon = webFXTreeConfig.tMinusIcon;
this.childNodes[this.childNodes.length - 2]._last = false;
}
this._last = true;
var foo = this;
while (foo.parentNode) {
for (var i = 0; i < foo.parentNode.childNodes.length; i++) {
if (foo.id == foo.parentNode.childNodes[i].id) { break; }
}
if (i == foo.parentNode.childNodes.length - 1) { foo.parentNode._last = true; }
else { foo.parentNode._last = false; }
foo = foo.parentNode;
}
webFXTreeHandler.insertHTMLBeforeEnd(document.getElementById(this.id + '-cont'), node.toString());
if ((!this.folder) && (!this.openIcon)) {
this.icon = webFXTreeConfig.folderIcon;
this.openIcon = webFXTreeConfig.openFolderIcon;
}
if (!this.folder) { this.folder = true; this.collapse(true); }
if (!bNoIdent) { this.indent(); }
}
return node;
}
WebFXTreeAbstractNode.prototype.toggle = function() {
if (this.folder) {
if (this.open) { this.collapse(); }
else { this.expand(); }
} }
WebFXTreeAbstractNode.prototype.select = function() {
document.getElementById(this.id + '-anchor').focus();
}
WebFXTreeAbstractNode.prototype.deSelect = function() {
document.getElementById(this.id + '-anchor').className = '';
webFXTreeHandler.selected = null;
}
WebFXTreeAbstractNode.prototype.focus = function() {
if ((webFXTreeHandler.selected) && (webFXTreeHandler.selected != this)) { webFXTreeHandler.selected.deSelect(); }
webFXTreeHandler.selected = this;
if ((this.openIcon) && (webFXTreeHandler.behavior != 'classic')) { document.getElementById(this.id + '-icon').src = this.openIcon; }
document.getElementById(this.id + '-anchor').className = 'selected';
document.getElementById(this.id + '-anchor').focus();
if (webFXTreeHandler.onSelect) { webFXTreeHandler.onSelect(this); }
}
WebFXTreeAbstractNode.prototype.blur = function() {
if ((this.openIcon) && (webFXTreeHandler.behavior != 'classic')) { document.getElementById(this.id + '-icon').src = this.icon; }
document.getElementById(this.id + '-anchor').className = 'selected-inactive';
}
WebFXTreeAbstractNode.prototype.doExpand = function() {
if (webFXTreeHandler.behavior == 'classic') { document.getElementById(this.id + '-icon').src = this.openIcon; }
if (this.childNodes.length) { document.getElementById(this.id + '-cont').style.display = 'block'; }
this.open = true;
if (webFXTreeConfig.usePersistence) {
webFXTreeHandler.cookies.setCookie(this.id.substr(18,this.id.length - 18), '1');
} }
WebFXTreeAbstractNode.prototype.doCollapse = function() {
if (webFXTreeHandler.behavior == 'classic') { document.getElementById(this.id + '-icon').src = this.icon; }
if (this.childNodes.length) { document.getElementById(this.id + '-cont').style.display = 'none'; }
this.open = false;
if (webFXTreeConfig.usePersistence) {
webFXTreeHandler.cookies.setCookie(this.id.substr(18,this.id.length - 18), '0');
} }
WebFXTreeAbstractNode.prototype.expandAll = function() {
this.expandChildren();
if ((this.folder) && (!this.open)) { this.expand(); }
}
WebFXTreeAbstractNode.prototype.expandChildren = function() {
for (var i = 0; i < this.childNodes.length; i++) {
this.childNodes[i].expandAll();
} }
WebFXTreeAbstractNode.prototype.collapseAll = function() {
this.collapseChildren();
if ((this.folder) && (this.open)) { this.collapse(true); }
}
WebFXTreeAbstractNode.prototype.collapseChildren = function() {
for (var i = 0; i < this.childNodes.length; i++) {
this.childNodes[i].collapseAll();
} }
WebFXTreeAbstractNode.prototype.indent = function(lvl, del, last, level, nodesLeft) {
/*
* Since we only want to modify items one level below ourself,
* and since the rightmost indentation position is occupied by
* the plus icon we set this to -2
*/
if (lvl == null) { lvl = -2; }
var state = 0;
for (var i = this.childNodes.length - 1; i >= 0 ; i--) {
state = this.childNodes[i].indent(lvl + 1, del, last, level);
if (state) { return; }
}
if (del) {
if ((level >= this._level) && (document.getElementById(this.id + '-plus'))) {
if (this.folder) {
document.getElementById(this.id + '-plus').src = (this.open)?webFXTreeConfig.lMinusIcon:webFXTreeConfig.lPlusIcon;
this.plusIcon = webFXTreeConfig.lPlusIcon;
this.minusIcon = webFXTreeConfig.lMinusIcon;
}
else if (nodesLeft) { document.getElementById(this.id + '-plus').src = webFXTreeConfig.lIcon; }
return 1;
} }
var foo = document.getElementById(this.id + '-indent-' + lvl);
if (foo) {
if ((foo._last) || ((del) && (last))) { foo.src = webFXTreeConfig.blankIcon; }
else { foo.src = webFXTreeConfig.iIcon; }
}
return 0;
}
/*
* WebFXTree class
*/
function WebFXTree(sText, sAction, sBehavior, sIcon, sOpenIcon) {
this.base = WebFXTreeAbstractNode;
this.base(sText, sAction);
this.icon = sIcon || webFXTreeConfig.rootIcon;
this.openIcon = sOpenIcon || webFXTreeConfig.openRootIcon;
/* Defaults to open */
if (webFXTreeConfig.usePersistence) {
this.open = (webFXTreeHandler.cookies.getCookie(this.id.substr(18,this.id.length - 18)) == '0')?false:true;
} else { this.open = true; }
this.folder = true;
this.rendered = false;
this.onSelect = null;
if (!webFXTreeHandler.behavior) { webFXTreeHandler.behavior = sBehavior || webFXTreeConfig.defaultBehavior; }
}
WebFXTree.prototype = new WebFXTreeAbstractNode;
WebFXTree.prototype.setBehavior = function (sBehavior) {
webFXTreeHandler.behavior = sBehavior;
};
WebFXTree.prototype.getBehavior = function (sBehavior) {
return webFXTreeHandler.behavior;
};
WebFXTree.prototype.getSelected = function() {
if (webFXTreeHandler.selected) { return webFXTreeHandler.selected; }
else { return null; }
}
WebFXTree.prototype.remove = function() { }
WebFXTree.prototype.expand = function() {
this.doExpand();
}
WebFXTree.prototype.collapse = function(b) {
if (!b) { this.focus(); }
this.doCollapse();
}
WebFXTree.prototype.getFirst = function() {
return null;
}
WebFXTree.prototype.getLast = function() {
return null;
}
WebFXTree.prototype.getNextSibling = function() {
return null;
}
WebFXTree.prototype.getPreviousSibling = function() {
return null;
}
WebFXTree.prototype.keydown = function(key) {
if (key == 39) {
if (!this.open) { this.expand(); }
else if (this.childNodes.length) { this.childNodes[0].select(); }
return false;
}
if (key == 37) { this.collapse(); return false; }
if ((key == 40) && (this.open) && (this.childNodes.length)) { this.childNodes[0].select(); return false; }
return true;
}
WebFXTree.prototype.toString = function() {
var str = "<div id=\"" + this.id + "\" ondblclick=\"webFXTreeHandler.toggle(this);\" class=\"webfx-tree-item\" onkeydown=\"return webFXTreeHandler.keydown(this, event)\">" +
"<img id=\"" + this.id + "-icon\" class=\"webfx-tree-icon\" src=\"" + ((webFXTreeHandler.behavior == 'classic' && this.open)?this.openIcon:this.icon) + "\" onclick=\"webFXTreeHandler.select(this);\">" +
"<a href=\"" + this.action + "\" id=\"" + this.id + "-anchor\" onfocus=\"webFXTreeHandler.focus(this);\" onblur=\"webFXTreeHandler.blur(this);\"" +
(this.target ? " target=\"" + this.target + "\"" : "") +
">" + this.text + "</a></div>" +
"<div id=\"" + this.id + "-cont\" class=\"webfx-tree-container\" style=\"display: " + ((this.open)?'block':'none') + ";\">";
var sb = [];
for (var i = 0; i < this.childNodes.length; i++) {
sb[i] = this.childNodes[i].toString(i, this.childNodes.length);
}
this.rendered = true;
return str + sb.join("") + "</div>";
};
/*
* WebFXTreeItem class
*/
function WebFXTreeItem(sText, sAction, eParent, sIcon, sOpenIcon) {
this.base = WebFXTreeAbstractNode;
this.base(sText, sAction);
/* Defaults to close */
if (webFXTreeConfig.usePersistence) {
this.open = (webFXTreeHandler.cookies.getCookie(this.id.substr(18,this.id.length - 18)) == '1')?true:false;
} else { this.open = false; }
if (sIcon) { this.icon = sIcon; }
if (sOpenIcon) { this.openIcon = sOpenIcon; }
if (eParent) { eParent.add(this); }
}
WebFXTreeItem.prototype = new WebFXTreeAbstractNode;
WebFXTreeItem.prototype.remove = function() {
var iconSrc = document.getElementById(this.id + '-plus').src;
var parentNode = this.parentNode;
var prevSibling = this.getPreviousSibling(true);
var nextSibling = this.getNextSibling(true);
var folder = this.parentNode.folder;
var last = ((nextSibling) && (nextSibling.parentNode) && (nextSibling.parentNode.id == parentNode.id))?false:true;
this.getPreviousSibling().focus();
this._remove();
if (parentNode.childNodes.length == 0) {
document.getElementById(parentNode.id + '-cont').style.display = 'none';
parentNode.doCollapse();
parentNode.folder = false;
parentNode.open = false;
}
if (!nextSibling || last) { parentNode.indent(null, true, last, this._level, parentNode.childNodes.length); }
if ((prevSibling == parentNode) && !(parentNode.childNodes.length)) {
prevSibling.folder = false;
prevSibling.open = false;
iconSrc = document.getElementById(prevSibling.id + '-plus').src;
iconSrc = iconSrc.replace('minus', '').replace('plus', '');
document.getElementById(prevSibling.id + '-plus').src = iconSrc;
document.getElementById(prevSibling.id + '-icon').src = webFXTreeConfig.fileIcon;
}
if (document.getElementById(prevSibling.id + '-plus')) {
if (parentNode == prevSibling.parentNode) {
iconSrc = iconSrc.replace('minus', '').replace('plus', '');
document.getElementById(prevSibling.id + '-plus').src = iconSrc;
} } }
WebFXTreeItem.prototype._remove = function() {
for (var i = this.childNodes.length - 1; i >= 0; i--) {
this.childNodes[i]._remove();
}
for (var i = 0; i < this.parentNode.childNodes.length; i++) {
if (this == this.parentNode.childNodes[i]) {
for (var j = i; j < this.parentNode.childNodes.length; j++) {
this.parentNode.childNodes[j] = this.parentNode.childNodes[j+1];
}
this.parentNode.childNodes.length -= 1;
if (i + 1 == this.parentNode.childNodes.length) { this.parentNode._last = true; }
break;
} }
webFXTreeHandler.all[this.id] = null;
var tmp = document.getElementById(this.id);
if (tmp) { tmp.parentNode.removeChild(tmp); }
tmp = document.getElementById(this.id + '-cont');
if (tmp) { tmp.parentNode.removeChild(tmp); }
}
WebFXTreeItem.prototype.expand = function() {
this.doExpand();
document.getElementById(this.id + '-plus').src = this.minusIcon;
}
WebFXTreeItem.prototype.collapse = function(b) {
if (!b) { this.focus(); }
this.doCollapse();
document.getElementById(this.id + '-plus').src = this.plusIcon;
}
WebFXTreeItem.prototype.getFirst = function() {
return this.childNodes[0];
}
WebFXTreeItem.prototype.getLast = function() {
if (this.childNodes[this.childNodes.length - 1].open) { return this.childNodes[this.childNodes.length - 1].getLast(); }
else { return this.childNodes[this.childNodes.length - 1]; }
}
WebFXTreeItem.prototype.getNextSibling = function() {
for (var i = 0; i < this.parentNode.childNodes.length; i++) {
if (this == this.parentNode.childNodes[i]) { break; }
}
if (++i == this.parentNode.childNodes.length) { return this.parentNode.getNextSibling(); }
else { return this.parentNode.childNodes[i]; }
}
WebFXTreeItem.prototype.getPreviousSibling = function(b) {
for (var i = 0; i < this.parentNode.childNodes.length; i++) {
if (this == this.parentNode.childNodes[i]) { break; }
}
if (i == 0) { return this.parentNode; }
else {
if ((this.parentNode.childNodes[--i].open) || (b && this.parentNode.childNodes[i].folder)) { return this.parentNode.childNodes[i].getLast(); }
else { return this.parentNode.childNodes[i]; }
} }
WebFXTreeItem.prototype.keydown = function(key) {
if ((key == 39) && (this.folder)) {
if (!this.open) { this.expand(); }
else { this.getFirst().select(); }
return false;
}
else if (key == 37) {
if (this.open) { this.collapse(); }
else { this.parentNode.select(); }
return false;
}
else if (key == 40) {
if (this.open) { this.getFirst().select(); }
else {
var sib = this.getNextSibling();
if (sib) { sib.select(); }
}
return false;
}
else if (key == 38) { this.getPreviousSibling().select(); return false; }
return true;
}
WebFXTreeItem.prototype.toString = function (nItem, nItemCount) {
var foo = this.parentNode;
var indent = '';
if (nItem + 1 == nItemCount) { this.parentNode._last = true; }
var i = 0;
while (foo.parentNode) {
foo = foo.parentNode;
indent = "<img id=\"" + this.id + "-indent-" + i + "\" src=\"" + ((foo._last)?webFXTreeConfig.blankIcon:webFXTreeConfig.iIcon) + "\">" + indent;
i++;
}
this._level = i;
if (this.childNodes.length) { this.folder = 1; }
else { this.open = false; }
if ((this.folder) || (webFXTreeHandler.behavior != 'classic')) {
if (!this.icon) { this.icon = webFXTreeConfig.folderIcon; }
if (!this.openIcon) { this.openIcon = webFXTreeConfig.openFolderIcon; }
}
else if (!this.icon) { this.icon = webFXTreeConfig.fileIcon; }
var label = this.text.replace(/</g, '<').replace(/>/g, '>');
var str = "<div id=\"" + this.id + "\" ondblclick=\"webFXTreeHandler.toggle(this);\" class=\"webfx-tree-item\" onkeydown=\"return webFXTreeHandler.keydown(this, event)\">" +
indent +
"<img id=\"" + this.id + "-plus\" src=\"" + ((this.folder)?((this.open)?((this.parentNode._last)?webFXTreeConfig.lMinusIcon:webFXTreeConfig.tMinusIcon):((this.parentNode._last)?webFXTreeConfig.lPlusIcon:webFXTreeConfig.tPlusIcon)):((this.parentNode._last)?webFXTreeConfig.lIcon:webFXTreeConfig.tIcon)) + "\" onclick=\"webFXTreeHandler.toggle(this);\">" +
"<img id=\"" + this.id + "-icon\" class=\"webfx-tree-icon\" src=\"" + ((webFXTreeHandler.behavior == 'classic' && this.open)?this.openIcon:this.icon) + "\" onclick=\"webFXTreeHandler.select(this);\">" +
"<a href=\"" + this.action + "\" id=\"" + this.id + "-anchor\" onfocus=\"webFXTreeHandler.focus(this);\" onblur=\"webFXTreeHandler.blur(this);\"" +
(this.target ? " target=\"" + this.target + "\"" : "") +
">" + label + "</a></div>" +
"<div id=\"" + this.id + "-cont\" class=\"webfx-tree-container\" style=\"display: " + ((this.open)?'block':'none') + ";\">";
var sb = [];
for (var i = 0; i < this.childNodes.length; i++) {
sb[i] = this.childNodes[i].toString(i,this.childNodes.length);
}
this.plusIcon = ((this.parentNode._last)?webFXTreeConfig.lPlusIcon:webFXTreeConfig.tPlusIcon);
this.minusIcon = ((this.parentNode._last)?webFXTreeConfig.lMinusIcon:webFXTreeConfig.tMinusIcon);
return str + sb.join("") + "</div>";
}