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Struts example source code file (Menu2.js)
This example Struts source code file (Menu2.js) is included in the DevDaily.com
"Java Source Code
Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.
The Struts Menu2.js source code
/*
Copyright (c) 2004-2006, The Dojo Foundation
All Rights Reserved.
Licensed under the Academic Free License version 2.1 or above OR the
modified BSD license. For more information on Dojo licensing, see:
http://dojotoolkit.org/community/licensing.shtml
*/
dojo.provide("dojo.widget.Menu2");
dojo.require("dojo.widget.PopupContainer");
dojo.declare("dojo.widget.MenuBase", null, function () {
this.eventNames = {open:""};
}, {isContainer:true, isMenu:true, eventNaming:"default", templateCssString:"\n.dojoPopupMenu2 {\n\tposition: absolute;\n\tborder: 1px solid #7298d0;\n\tbackground:#85aeec url(images/soriaMenuBg.gif) repeat-x bottom left !important;\n\tpadding: 1px;\n\tmargin-top: 1px;\n\tmargin-bottom: 1px;\n}\n\n.dojoMenuItem2{\n\twhite-space: nowrap;\n\tfont: menu;\n\tmargin: 0;\n}\n\n.dojoMenuItem2Hover {\n\tbackground-color: #D2E4FD;\n\tcursor:pointer;\n\tcursor:hand;\n}\n\n.dojoMenuItem2Icon {\n\tposition: relative;\n\tbackground-position: center center;\n\tbackground-repeat: no-repeat;\n\twidth: 16px;\n\theight: 16px;\n\tpadding-right: 3px;\n}\n\n.dojoMenuItem2Label {\n\tposition: relative;\n\tvertical-align: middle;\n}\n\n/* main label text */\n.dojoMenuItem2Label {\n\tposition: relative;\n\tvertical-align: middle;\n}\n\n.dojoMenuItem2Accel {\n\tposition: relative;\n\tvertical-align: middle;\n\tpadding-left: 3px;\n}\n\n.dojoMenuItem2Disabled .dojoMenuItem2Label,\n.dojoMenuItem2Disabled .dojoMenuItem2Accel {\n\tcolor: #607a9e;\n}\n\n.dojoMenuItem2Submenu {\n\tposition: relative;\n\tbackground-position: center center;\n\tbackground-repeat: no-repeat;\n\tbackground-image: url(images/submenu_off.gif);\n\twidth: 5px;\n\theight: 9px;\n\tpadding-left: 3px;\n}\n.dojoMenuItem2Hover .dojoMenuItem2Submenu {\n\tbackground-image: url(images/submenu_on.gif);\n}\n\n.dojoMenuItem2Disabled .dojoMenuItem2Submenu {\n\tbackground-image: url(images/submenu_disabled.gif);\n}\n\n.dojoMenuSeparator2 {\n\tfont-size: 1px;\n\tmargin: 0;\n}\n\n.dojoMenuSeparator2Top {\n\theight: 50%;\n\tborder-bottom: 1px solid #7a98c4;\n\tmargin: 0px 2px;\n\tfont-size: 1px;\n}\n\n.dojoMenuSeparator2Bottom {\n\theight: 50%;\n\tborder-top: 1px solid #c9deff;\n\tmargin: 0px 2px;\n\tfont-size: 1px;\n}\n\n.dojoMenuBar2 {\n\tbackground:#85aeec url(images/soriaBarBg.gif) repeat-x top left;\n\t/*border-bottom:1px solid #6b9fec;*/\n\tpadding: 1px;\n}\n\n.dojoMenuBar2 .dojoMenuItem2 {\n\twhite-space: nowrap;\n\tfont: menu;\n\tmargin: 0;\n\tposition: relative;\n\tvertical-align: middle;\n\tz-index: 1;\n\tpadding: 3px 8px;\n\tdisplay: inline;/* needed in khtml to display correctly */\n\tdisplay: -moz-inline-box;/* needed in firefox */\n\tcursor:pointer;\n\tcursor:hand;\n}\n\n.dojoMenuBar2 .dojoMenuItem2Hover {\n\tbackground-color:#d2e4fd;\n}\n\n.dojoMenuBar2 .dojoMenuItem2Disabled span {\n\tcolor: #4f6582;\n}\n", templateCssPath:dojo.uri.moduleUri("dojo.widget", "templates/Menu2.css"), submenuDelay:500, initialize:function (args, frag) {
if (this.eventNaming == "default") {
for (var eventName in this.eventNames) {
this.eventNames[eventName] = this.widgetId + "/" + eventName;
}
}
}, _moveToNext:function (evt) {
this._highlightOption(1);
return true;
}, _moveToPrevious:function (evt) {
this._highlightOption(-1);
return true;
}, _moveToParentMenu:function (evt) {
if (this._highlighted_option && this.parentMenu) {
if (evt._menu2UpKeyProcessed) {
return true;
} else {
this._highlighted_option.onUnhover();
this.closeSubmenu();
evt._menu2UpKeyProcessed = true;
}
}
return false;
}, _moveToChildMenu:function (evt) {
if (this._highlighted_option && this._highlighted_option.submenuId) {
this._highlighted_option._onClick(true);
return true;
}
return false;
}, _selectCurrentItem:function (evt) {
if (this._highlighted_option) {
this._highlighted_option._onClick();
return true;
}
return false;
}, processKey:function (evt) {
if (evt.ctrlKey || evt.altKey || !evt.key) {
return false;
}
var rval = false;
switch (evt.key) {
case evt.KEY_DOWN_ARROW:
rval = this._moveToNext(evt);
break;
case evt.KEY_UP_ARROW:
rval = this._moveToPrevious(evt);
break;
case evt.KEY_RIGHT_ARROW:
rval = this._moveToChildMenu(evt);
break;
case evt.KEY_LEFT_ARROW:
rval = this._moveToParentMenu(evt);
break;
case " ":
case evt.KEY_ENTER:
if (rval = this._selectCurrentItem(evt)) {
break;
}
case evt.KEY_ESCAPE:
case evt.KEY_TAB:
this.close(true);
rval = true;
break;
}
return rval;
}, _findValidItem:function (dir, curItem) {
if (curItem) {
curItem = dir > 0 ? curItem.getNextSibling() : curItem.getPreviousSibling();
}
for (var i = 0; i < this.children.length; ++i) {
if (!curItem) {
curItem = dir > 0 ? this.children[0] : this.children[this.children.length - 1];
}
if (curItem.onHover && curItem.isShowing()) {
return curItem;
}
curItem = dir > 0 ? curItem.getNextSibling() : curItem.getPreviousSibling();
}
}, _highlightOption:function (dir) {
var item;
if ((!this._highlighted_option)) {
item = this._findValidItem(dir);
} else {
item = this._findValidItem(dir, this._highlighted_option);
}
if (item) {
if (this._highlighted_option) {
this._highlighted_option.onUnhover();
}
item.onHover();
dojo.html.scrollIntoView(item.domNode);
try {
var node = dojo.html.getElementsByClass("dojoMenuItem2Label", item.domNode)[0];
node.focus();
}
catch (e) {
}
}
}, onItemClick:function (item) {
}, closeSubmenu:function (force) {
if (this.currentSubmenu == null) {
return;
}
this.currentSubmenu.close(force);
this.currentSubmenu = null;
this.currentSubmenuTrigger.is_open = false;
this.currentSubmenuTrigger._closedSubmenu(force);
this.currentSubmenuTrigger = null;
}});
dojo.widget.defineWidget("dojo.widget.PopupMenu2", [dojo.widget.HtmlWidget, dojo.widget.PopupContainerBase, dojo.widget.MenuBase], function () {
this.targetNodeIds = [];
}, {templateString:"<table class=\"dojoPopupMenu2\" border=0 cellspacing=0 cellpadding=0 style=\"display: none; position: absolute;\">" + " |
", submenuOverlap:5, contextMenuForWindow:false, parentMenu:null, postCreate:function () {
if (this.contextMenuForWindow) {
var doc = dojo.body();
this.bindDomNode(doc);
} else {
if (this.targetNodeIds.length > 0) {
dojo.lang.forEach(this.targetNodeIds, this.bindDomNode, this);
}
}
this._subscribeSubitemsOnOpen();
}, _subscribeSubitemsOnOpen:function () {
var subItems = this.getChildrenOfType(dojo.widget.MenuItem2);
for (var i = 0; i < subItems.length; i++) {
dojo.event.topic.subscribe(this.eventNames.open, subItems[i], "menuOpen");
}
}, getTopOpenEvent:function () {
var menu = this;
while (menu.parentMenu) {
menu = menu.parentMenu;
}
return menu.openEvent;
}, bindDomNode:function (node) {
node = dojo.byId(node);
var win = dojo.html.getElementWindow(node);
if (dojo.html.isTag(node, "iframe") == "iframe") {
win = dojo.html.iframeContentWindow(node);
node = dojo.withGlobal(win, dojo.body);
}
dojo.widget.Menu2.OperaAndKonqFixer.fixNode(node);
dojo.event.kwConnect({srcObj:node, srcFunc:"oncontextmenu", targetObj:this, targetFunc:"onOpen", once:true});
if (dojo.render.html.moz && win.document.designMode.toLowerCase() == "on") {
dojo.event.browser.addListener(node, "contextmenu", dojo.lang.hitch(this, "onOpen"));
}
dojo.widget.PopupManager.registerWin(win);
}, unBindDomNode:function (nodeName) {
var node = dojo.byId(nodeName);
dojo.event.kwDisconnect({srcObj:node, srcFunc:"oncontextmenu", targetObj:this, targetFunc:"onOpen", once:true});
dojo.widget.Menu2.OperaAndKonqFixer.cleanNode(node);
}, _openAsSubmenu:function (parent, explodeSrc, orient) {
if (this.isShowingNow) {
return;
}
this.parentMenu = parent;
this.open(explodeSrc, parent, explodeSrc, orient);
}, close:function (force) {
if (this.animationInProgress) {
dojo.widget.PopupContainerBase.prototype.close.call(this, force);
return;
}
if (this._highlighted_option) {
this._highlighted_option.onUnhover();
}
dojo.widget.PopupContainerBase.prototype.close.call(this, force);
this.parentMenu = null;
}, closeAll:function (force) {
if (this.parentMenu) {
this.parentMenu.closeAll(force);
} else {
this.close(force);
}
}, _openSubmenu:function (submenu, from_item) {
submenu._openAsSubmenu(this, from_item.arrow, {"TR":"TL", "TL":"TR"});
this.currentSubmenu = submenu;
this.currentSubmenuTrigger = from_item;
this.currentSubmenuTrigger.is_open = true;
}, focus:function () {
if (this.currentSubmenuTrigger) {
if (this.currentSubmenuTrigger.caption) {
try {
this.currentSubmenuTrigger.caption.focus();
}
catch (e) {
}
} else {
try {
this.currentSubmenuTrigger.domNode.focus();
}
catch (e) {
}
}
}
}, onOpen:function (e) {
this.openEvent = e;
if (e["target"]) {
this.openedForWindow = dojo.html.getElementWindow(e.target);
} else {
this.openedForWindow = null;
}
var x = e.pageX, y = e.pageY;
var win = dojo.html.getElementWindow(e.target);
var iframe = win._frameElement || win.frameElement;
if (iframe) {
var cood = dojo.html.abs(iframe, true);
x += cood.x - dojo.withGlobal(win, dojo.html.getScroll).left;
y += cood.y - dojo.withGlobal(win, dojo.html.getScroll).top;
}
this.open(x, y, null, [x, y]);
dojo.event.browser.stopEvent(e);
}});
dojo.widget.defineWidget("dojo.widget.MenuItem2", dojo.widget.HtmlWidget, function () {
this.eventNames = {engage:""};
}, {templateString:"<tr class=\"dojoMenuItem2\" dojoAttachEvent=\"onMouseOver: onHover; onMouseOut: onUnhover; onClick: _onClick; onKey:onKey;\">" + "
" + "${this.caption}" + "${this.accelKey}" + "" + "", is_hovering:false, hover_timer:null, is_open:false, topPosition:0, caption:"Untitled", accelKey:"", iconSrc:"", disabledClass:"dojoMenuItem2Disabled", iconClass:"dojoMenuItem2Icon", submenuId:"", eventNaming:"default", highlightClass:"dojoMenuItem2Hover", postMixInProperties:function () {
this.iconStyle = "";
if (this.iconSrc) {
if ((this.iconSrc.toLowerCase().substring(this.iconSrc.length - 4) == ".png") && (dojo.render.html.ie55 || dojo.render.html.ie60)) {
this.iconStyle = "filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + this.iconSrc + "', sizingMethod='image')";
} else {
this.iconStyle = "background-image: url(" + this.iconSrc + ")";
}
}
this.arrowDisplay = this.submenuId ? "block" : "none";
dojo.widget.MenuItem2.superclass.postMixInProperties.apply(this, arguments);
}, fillInTemplate:function () {
dojo.html.disableSelection(this.domNode);
if (this.disabled) {
this.setDisabled(true);
}
if (this.eventNaming == "default") {
for (var eventName in this.eventNames) {
this.eventNames[eventName] = this.widgetId + "/" + eventName;
}
}
}, onHover:function () {
this.onUnhover();
if (this.is_hovering) {
return;
}
if (this.is_open) {
return;
}
if (this.parent._highlighted_option) {
this.parent._highlighted_option.onUnhover();
}
this.parent.closeSubmenu();
this.parent._highlighted_option = this;
dojo.widget.PopupManager.setFocusedMenu(this.parent);
this._highlightItem();
if (this.is_hovering) {
this._stopSubmenuTimer();
}
this.is_hovering = true;
this._startSubmenuTimer();
}, onUnhover:function () {
if (!this.is_open) {
this._unhighlightItem();
}
this.is_hovering = false;
this.parent._highlighted_option = null;
if (this.parent.parentMenu) {
dojo.widget.PopupManager.setFocusedMenu(this.parent.parentMenu);
}
this._stopSubmenuTimer();
}, _onClick:function (focus) {
var displayingSubMenu = false;
if (this.disabled) {
return false;
}
if (this.submenuId) {
if (!this.is_open) {
this._stopSubmenuTimer();
this._openSubmenu();
}
displayingSubMenu = true;
} else {
this.onUnhover();
this.parent.closeAll(true);
}
this.onClick();
dojo.event.topic.publish(this.eventNames.engage, this);
if (displayingSubMenu && focus) {
dojo.widget.getWidgetById(this.submenuId)._highlightOption(1);
}
return;
}, onClick:function () {
this.parent.onItemClick(this);
}, _highlightItem:function () {
dojo.html.addClass(this.domNode, this.highlightClass);
}, _unhighlightItem:function () {
dojo.html.removeClass(this.domNode, this.highlightClass);
}, _startSubmenuTimer:function () {
this._stopSubmenuTimer();
if (this.disabled) {
return;
}
var self = this;
var closure = function () {
return function () {
self._openSubmenu();
};
}();
this.hover_timer = dojo.lang.setTimeout(closure, this.parent.submenuDelay);
}, _stopSubmenuTimer:function () {
if (this.hover_timer) {
dojo.lang.clearTimeout(this.hover_timer);
this.hover_timer = null;
}
}, _openSubmenu:function () {
if (this.disabled) {
return;
}
this.parent.closeSubmenu();
var submenu = dojo.widget.getWidgetById(this.submenuId);
if (submenu) {
this.parent._openSubmenu(submenu, this);
}
}, _closedSubmenu:function () {
this.onUnhover();
}, setDisabled:function (value) {
this.disabled = value;
if (this.disabled) {
dojo.html.addClass(this.domNode, this.disabledClass);
} else {
dojo.html.removeClass(this.domNode, this.disabledClass);
}
}, enable:function () {
this.setDisabled(false);
}, disable:function () {
this.setDisabled(true);
}, menuOpen:function (message) {
}});
dojo.widget.defineWidget("dojo.widget.MenuSeparator2", dojo.widget.HtmlWidget, {templateString:"<tr class=\"dojoMenuSeparator2\">" + "" + "" + "", postCreate:function () {
dojo.html.disableSelection(this.domNode);
}});
dojo.widget.defineWidget("dojo.widget.MenuBar2", [dojo.widget.HtmlWidget, dojo.widget.MenuBase], {menuOverlap:2, templateString:"<div class=\"dojoMenuBar2\" dojoAttachPoint=\"containerNode\" tabIndex=\"0\">
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