/*----------------------------------------------------------------------------\
|                                 XMenu 1.13                                  |
|-----------------------------------------------------------------------------|
|                          Created by Erik Arvidsson                          |
|                  (http://webfx.eae.net/contact.html#erik)                   |
|                      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, Opera 5+,  Safari |
| and Konqueror 3.                                                            |
|-----------------------------------------------------------------------------|
|                  Copyright (c) 2001 - 2007 Erik Arvidsson                   |
|-----------------------------------------------------------------------------|
| 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.                                                          |
|-----------------------------------------------------------------------------|
| 2001-01-12 | Original Version Posted.                                       |
| 2001-11-20 | Added hover mode support and removed Opera focus hacks         |
| 2001-12-20 | (1.1) Added auto positioning and some properties to support    |
|            | this.                                                          |
| 2002-08-13 | (1.11) toString used ' for attributes. Changed to " to allow   |
|            | in properties/arguments.                                       |
| 2003-04-27 | (1.12) Added support for target property on menu item/button   |
| 2006-05-28 | Changed license to Apache Software License 2.0.                |
| 2007-07-07 | Added support for safari (hover mode only) and ie7.            |
|-----------------------------------------------------------------------------|
| Created 2001-01-12 | All changes are in the log above. | Updated 2007-07-07 |
\----------------------------------------------------------------------------*/



// check browsers
var ua = navigator.userAgent;
var opera = /opera [56789]|opera\/[56789]/i.test(ua);
var webkit = /webkit/i.test(ua);
var ie = !opera && /MSIE/.test(ua);
var ie50 = ie && /MSIE 5\.[01234]/.test(ua);
var ie6 = ie && /MSIE [6789]/.test(ua);
var ie7 = ie && /MSIE [789]/.test(ua);
var ieBox = ie && (document.compatMode == null || document.compatMode != "CSS1Compat");
var moz = !opera && !webkit && /gecko/i.test(ua);
var nn6 = !opera && /netscape.*6\./i.test(ua);

// define the default values
webfxMenuDefaultWidth            = 182;
webfxMenuDefaultBorderLeft        = 1;
webfxMenuDefaultBorderRight        = 1;
webfxMenuDefaultBorderTop        = 1;
webfxMenuDefaultBorderBottom    = 1;
webfxMenuDefaultPaddingLeft        = 1;
webfxMenuDefaultPaddingRight    = 1;
webfxMenuDefaultPaddingTop        = 1;
webfxMenuDefaultPaddingBottom    = 1;
webfxMenuDefaultShadowLeft        = 0;
webfxMenuDefaultShadowRight        = ie && !ie50 && /win32/i.test(navigator.platform) ? 4 :0;
webfxMenuDefaultShadowTop        = 0;
webfxMenuDefaultShadowBottom    = ie && !ie50 && /win32/i.test(navigator.platform) ? 4 : 0;
webfxMenuItemDefaultHeight        = 18;
webfxMenuItemDefaultText        = "Untitled";
webfxMenuItemDefaultHref        = "javascript:void(0)";
webfxMenuSeparatorDefaultHeight    = 6;
webfxMenuDefaultEmptyText        = "Empty";
webfxMenuDefaultUseAutoPosition    = nn6 ? false : true;

// other global constants
webfxMenuImagePath                = "";

webfxMenuUseHover                = opera || webkit ? true : true;
webfxMenuHideTime                = 100;
webfxMenuShowTime                = 100;

var webFXMenuHandler = {
    idCounter        :    0,
    idPrefix        :    "webfx-menu-object-",
    all                :    {},
    getId            :    function () { return this.idPrefix + this.idCounter++; },
    overMenuItem    :    function (oItem) {
        if (this.showTimeout != null)
            window.clearTimeout(this.showTimeout);
        if (this.hideTimeout != null)
            window.clearTimeout(this.hideTimeout);
        var jsItem = this.all[oItem.id];
        if (webfxMenuShowTime <= 0)
            this._over(jsItem);
        else
            //this.showTimeout = window.setTimeout(function () { webFXMenuHandler._over(jsItem) ; }, webfxMenuShowTime);
            // I hate IE5.0 because the piece of shit crashes when using setTimeout with a function object
            this.showTimeout = window.setTimeout("webFXMenuHandler._over(webFXMenuHandler.all['" + jsItem.id + "'])", webfxMenuShowTime);
    },
    outMenuItem    :    function (oItem) {
        if (this.showTimeout != null)
            window.clearTimeout(this.showTimeout);
        if (this.hideTimeout != null)
            window.clearTimeout(this.hideTimeout);
        var jsItem = this.all[oItem.id];
        if (webfxMenuHideTime <= 0)
            this._out(jsItem);
        else
            //this.hideTimeout = window.setTimeout(function () { webFXMenuHandler._out(jsItem) ; }, webfxMenuHideTime);
            this.hideTimeout = window.setTimeout("webFXMenuHandler._out(webFXMenuHandler.all['" + jsItem.id + "'])", webfxMenuHideTime);
    },
    blurMenu        :    function (oMenuItem) {
        window.setTimeout("webFXMenuHandler.all[\"" + oMenuItem.id + "\"].subMenu.hide();", webfxMenuHideTime);
    },
    _over    :    function (jsItem) {
        if (jsItem.subMenu) {
            jsItem.parentMenu.hideAllSubs();
            jsItem.subMenu.show();
        }
        else
            jsItem.parentMenu.hideAllSubs();
    },
    _out    :    function (jsItem) {
        // find top most menu
        var root = jsItem;
        var m;
        if (root instanceof WebFXMenuButton)
            m = root.subMenu;
        else {
            m = jsItem.parentMenu;
            while (m.parentMenu != null && !(m.parentMenu instanceof WebFXMenuBar))
                m = m.parentMenu;
        }
        if (m != null)
            m.hide();
    },
    hideMenu    :    function (menu) {
        if (this.showTimeout != null)
            window.clearTimeout(this.showTimeout);
        if (this.hideTimeout != null)
            window.clearTimeout(this.hideTimeout);

        this.hideTimeout = window.setTimeout("webFXMenuHandler.all['" + menu.id + "'].hide()", webfxMenuHideTime);
    },
    showMenu    :    function (menu, src, dir) {
        if (this.showTimeout != null)
            window.clearTimeout(this.showTimeout);
        if (this.hideTimeout != null)
            window.clearTimeout(this.hideTimeout);
        if (arguments.length < 3)
            dir = "vertical";

        menu.show(src, dir);
    }
};

function WebFXMenu() {
    this._menuItems    = [];
    this._subMenus    = [];
    this.id            = webFXMenuHandler.getId();
    this.top        = 0;
    this.left        = 0;
    this.shown        = false;
    this.parentMenu    = null;
    webFXMenuHandler.all[this.id] = this;
}

WebFXMenu.prototype.width            = webfxMenuDefaultWidth;
WebFXMenu.prototype.emptyText        = webfxMenuDefaultEmptyText;
WebFXMenu.prototype.useAutoPosition    = webfxMenuDefaultUseAutoPosition;

WebFXMenu.prototype.borderLeft        = webfxMenuDefaultBorderLeft;
WebFXMenu.prototype.borderRight        = webfxMenuDefaultBorderRight;
WebFXMenu.prototype.borderTop        = webfxMenuDefaultBorderTop;
WebFXMenu.prototype.borderBottom    = webfxMenuDefaultBorderBottom;

WebFXMenu.prototype.paddingLeft        = webfxMenuDefaultPaddingLeft;
WebFXMenu.prototype.paddingRight    = webfxMenuDefaultPaddingRight;
WebFXMenu.prototype.paddingTop        = webfxMenuDefaultPaddingTop;
WebFXMenu.prototype.paddingBottom    = webfxMenuDefaultPaddingBottom;

WebFXMenu.prototype.shadowLeft        = webfxMenuDefaultShadowLeft;
WebFXMenu.prototype.shadowRight        = webfxMenuDefaultShadowRight;
WebFXMenu.prototype.shadowTop        = webfxMenuDefaultShadowTop;
WebFXMenu.prototype.shadowBottom    = webfxMenuDefaultShadowBottom;

WebFXMenu.prototype.add = function (menuItem) {
    this._menuItems[this._menuItems.length] = menuItem;
    if (menuItem.subMenu) {
        this._subMenus[this._subMenus.length] = menuItem.subMenu;
        menuItem.subMenu.parentMenu = this;
    }

    menuItem.parentMenu = this;
};

WebFXMenu.prototype.show = function (relObj, sDir) {
    if (this.useAutoPosition)
        this.position(relObj, sDir);

    var divElement = document.getElementById(this.id);
    divElement.style.left = opera ? this.left : this.left + "px";
    divElement.style.top = opera ? this.top : this.top + "px";
    divElement.style.visibility = "visible";
    this.shown = true;
    if (this.parentMenu)
        this.parentMenu.show();
};

WebFXMenu.prototype.hide = function () {
    this.hideAllSubs();
    var divElement = document.getElementById(this.id);
    divElement.style.visibility = "hidden";
    this.shown = false;
};

WebFXMenu.prototype.hideAllSubs = function () {
    for (var i = 0; i < this._subMenus.length; i++) {
        if (this._subMenus[i].shown)
            this._subMenus[i].hide();
    }
};
WebFXMenu.prototype.toString = function () {
    var top = this.top + this.borderTop + this.paddingTop;
    var str = "<div id='" + this.id + "' class='webfx-menu' style='" +
    "width:" + (!ieBox  ?
        this.width - this.borderLeft - this.paddingLeft - this.borderRight - this.paddingRight  :
        this.width) + "px;" +
    (this.useAutoPosition ?
        "left:" + this.left + "px;" + "top:" + this.top + "px;" :
        "") +
    (ie50 ? "filter: none;" : "") +
    "'>";

    if (this._menuItems.length == 0) {
        str +=    "<span class='webfx-menu-empty'>" + this.emptyText + "</span>";
    }
    else {
        // loop through all menuItems
        for (var i = 0; i < this._menuItems.length; i++) {
            var mi = this._menuItems[i];
            str += mi;
            if (!this.useAutoPosition) {
                if (mi.subMenu && !mi.subMenu.useAutoPosition)
                    mi.subMenu.top = top - mi.subMenu.borderTop - mi.subMenu.paddingTop;
                top += mi.height;
            }
        }

    }

    str += "</div>";

    for (var i = 0; i < this._subMenus.length; i++) {
        this._subMenus[i].left = this.left + this.width - this._subMenus[i].borderLeft;
        str += this._subMenus[i];
    }

    return str;
};
// WebFXMenu.prototype.position defined later
function WebFXMenuItem(sText, sHref, sToolTip, oSubMenu) {
    this.text = sText || webfxMenuItemDefaultText;
    this.href = (sHref == null || sHref == "") ? webfxMenuItemDefaultHref : sHref;
    this.subMenu = oSubMenu;
    if (oSubMenu)
        oSubMenu.parentMenuItem = this;
    this.toolTip = sToolTip;
    this.id = webFXMenuHandler.getId();
    webFXMenuHandler.all[this.id] = this;
};
WebFXMenuItem.prototype.height = webfxMenuItemDefaultHeight;
WebFXMenuItem.prototype.toString = function () {
    return    "<a" +
            " id='" + this.id + "'" +
            " href=\"" + this.href + "\"" +
            (this.target ? " target=\"" + this.target + "\"" : "") +
            (this.toolTip ? " title=\"" + this.toolTip + "\"" : "") +
            " onmouseover='webFXMenuHandler.overMenuItem(this)'" +
            (webfxMenuUseHover ? " onmouseout='webFXMenuHandler.outMenuItem(this)'" : "") +
            (this.subMenu ? " unselectable='on' tabindex='-1'" : "") +
            ">" +
            (this.subMenu ? "<img class='arrow' src=\"" + webfxMenuImagePath + "arrow.right.png\">" : "") +
            this.text +
            "</a>";
};


function WebFXMenuSeparator() {
    this.id = webFXMenuHandler.getId();
    webFXMenuHandler.all[this.id] = this;
};
WebFXMenuSeparator.prototype.height = webfxMenuSeparatorDefaultHeight;
WebFXMenuSeparator.prototype.toString = function () {
    return    "<div" +
            " id='" + this.id + "'" +
            (webfxMenuUseHover ?
            " onmouseover='webFXMenuHandler.overMenuItem(this)'" +
            " onmouseout='webFXMenuHandler.outMenuItem(this)'"
            :
            "") +
            "></div>"
};

function WebFXMenuBar() {
    this._parentConstructor = WebFXMenu;
    this._parentConstructor();
}
WebFXMenuBar.prototype = new WebFXMenu;
WebFXMenuBar.prototype.toString = function () {
    var str = "<div id='" + this.id + "' class='webfx-menu-bar'>";

    // loop through all menuButtons
    for (var i = 0; i < this._menuItems.length; i++)
        str += this._menuItems[i];

    str += "</div>";

    for (var i = 0; i < this._subMenus.length; i++)
        str += this._subMenus[i];

    return str;
};

function WebFXMenuButton(sText, sHref, sToolTip, oSubMenu) {
    this._parentConstructor = WebFXMenuItem;
    this._parentConstructor(sText, sHref, sToolTip, oSubMenu);
}
WebFXMenuButton.prototype = new WebFXMenuItem;
WebFXMenuButton.prototype.toString = function () {
    return    "<a" +
            " id='" + this.id + "'" +
            " href=\"" + this.href + "\"" +
            (this.target ? " target=\"" + this.target + "\"" : "") +
            (this.toolTip ? " title=\"" + this.toolTip + "\"" : "") +
            (webfxMenuUseHover ?
                (" onmouseover='webFXMenuHandler.overMenuItem(this)'" +
                " onmouseout='webFXMenuHandler.outMenuItem(this)'") :
                (
                    " onfocus='webFXMenuHandler.overMenuItem(this)'" +
                    (this.subMenu ?
                        " onblur='webFXMenuHandler.blurMenu(this)'" :
                        ""
                    )
                )) +
            ">" +
            this.text +
            (this.subMenu ? " <img class='arrow' src=\"" + webfxMenuImagePath + "arrow.down.png\" align='absmiddle'>" : "") +
            "</a>";
};


/* Position functions */

function getInnerLeft(el) {
    if (el == null) return 0;
    if (ieBox && el == document.body || !ieBox && el == document.documentElement) return 0;
    return getLeft(el) + getBorderLeft(el);
}

function getLeft(el) {
    if (el == null) return 0;
    return el.offsetLeft + getInnerLeft(el.offsetParent);
}

function getInnerTop(el) {
    if (el == null) return 0;
    if (ieBox && el == document.body || !ieBox && el == document.documentElement) return 0;
    return getTop(el) + getBorderTop(el);
}

function getTop(el) {
    if (el == null) return 0;
    return el.offsetTop + getInnerTop(el.offsetParent);
}

function getBorderLeft(el) {
    return ie ?
        el.clientLeft :
        parseInt(window.getComputedStyle(el, null).getPropertyValue("border-left-width"));
}

function getBorderTop(el) {
    return ie ?
        el.clientTop :
        parseInt(window.getComputedStyle(el, null).getPropertyValue("border-top-width"));
}

function opera_getLeft(el) {
    if (el == null) return 0;
    return el.offsetLeft + opera_getLeft(el.offsetParent);
}

function opera_getTop(el) {
    if (el == null) return 0;
    return el.offsetTop + opera_getTop(el.offsetParent);
}

function getOuterRect(el) {
    return {
        left:    (opera ? opera_getLeft(el) : getLeft(el)),
        top:    (opera ? opera_getTop(el) : getTop(el)),
        width:    el.offsetWidth,
        height:    el.offsetHeight
    };
}

// mozilla bug! scrollbars not included in innerWidth/height
function getDocumentRect(el) {
    return {
        left:    0,
        top:    0,
        width:    (ie ?
                    (ieBox ? document.body.clientWidth : document.documentElement.clientWidth) :
                    window.innerWidth
                ),
        height:    (ie ?
                    (ieBox ? document.body.clientHeight : document.documentElement.clientHeight) :
                    window.innerHeight
                )
    };
}

function getScrollPos(el) {
    return {
        left:    (ie ?
                    (ieBox ? document.body.scrollLeft : document.documentElement.scrollLeft) :
                    window.pageXOffset
                ),
        top:    (ie ?
                    (ieBox ? document.body.scrollTop : document.documentElement.scrollTop) :
                    window.pageYOffset
                )
    };
}

/* end position functions */

WebFXMenu.prototype.position = function (relEl, sDir) {
    var dir = sDir;
    // find parent item rectangle, piRect
    var piRect;
    if (!relEl) {
        var pi = this.parentMenuItem;
        if (!this.parentMenuItem)
            return;

        relEl = document.getElementById(pi.id);
        if (dir == null)
            dir = pi instanceof WebFXMenuButton ? "vertical" : "horizontal";

        piRect = getOuterRect(relEl);
    }
    else if (relEl.left != null && relEl.top != null && relEl.width != null && relEl.height != null) {    // got a rect
        piRect = relEl;
    }
    else
        piRect = getOuterRect(relEl);

    var menuEl = document.getElementById(this.id);
    var menuRect = getOuterRect(menuEl);
    var docRect = getDocumentRect();
    var scrollPos = getScrollPos();
    var pMenu = this.parentMenu;

    if (dir == "vertical") {
        if (piRect.left + menuRect.width - scrollPos.left <= docRect.width)
            this.left = piRect.left;
        else if (docRect.width >= menuRect.width)
            this.left = docRect.width + scrollPos.left - menuRect.width;
        else
            this.left = scrollPos.left;

        if (piRect.top + piRect.height + menuRect.height <= docRect.height + scrollPos.top)
            this.top = piRect.top + piRect.height;
        else if (piRect.top - menuRect.height >= scrollPos.top)
            this.top = piRect.top - menuRect.height;
        else if (docRect.height >= menuRect.height)
            this.top = docRect.height + scrollPos.top - menuRect.height;
        else
            this.top = scrollPos.top;
    }
    else {
        if (piRect.top + menuRect.height - this.borderTop - this.paddingTop <= docRect.height + scrollPos.top)
            this.top = piRect.top - this.borderTop - this.paddingTop;
        else if (piRect.top + piRect.height - menuRect.height + this.borderTop + this.paddingTop >= 0)
            this.top = piRect.top + piRect.height - menuRect.height + this.borderBottom + this.paddingBottom + this.shadowBottom;
        else if (docRect.height >= menuRect.height)
            this.top = docRect.height + scrollPos.top - menuRect.height;
        else
            this.top = scrollPos.top;

        var pMenuPaddingLeft = pMenu ? pMenu.paddingLeft : 0;
        var pMenuBorderLeft = pMenu ? pMenu.borderLeft : 0;
        var pMenuPaddingRight = pMenu ? pMenu.paddingRight : 0;
        var pMenuBorderRight = pMenu ? pMenu.borderRight : 0;

        if (piRect.left + piRect.width + menuRect.width + pMenuPaddingRight +
            pMenuBorderRight - this.borderLeft + this.shadowRight <= docRect.width + scrollPos.left)
            this.left = piRect.left + piRect.width + pMenuPaddingRight + pMenuBorderRight - this.borderLeft;
        else if (piRect.left - menuRect.width - pMenuPaddingLeft - pMenuBorderLeft + this.borderRight + this.shadowRight >= 0)
            this.left = piRect.left - menuRect.width - pMenuPaddingLeft - pMenuBorderLeft + this.borderRight + this.shadowRight;
        else if (docRect.width >= menuRect.width)
            this.left = docRect.width  + scrollPos.left - menuRect.width;
        else
            this.left = scrollPos.left;
    }
};