menu.moz.js

Bindows 1.01 完全版 Bindows 框架提供给你： 基于类的面向对象 API； 一个完整的窗口系统

/*
 * Bindows 1.01
 * http://www.bindows.net/
 * Copyright (c) 2003-2004 MB Technologies
 *
 * Bindows(tm) belongs to MB Technologies (Georgia, USA). All rights reserved.
 * You are not allowed to copy or modify this code. Commercial use requires
 * license.
 */

var xulNs = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
var menuCache = {
    _count: 0, _idPrefix: "-menu-cache-", getId: function()
{
    return this._idPrefix + this._count++;
} , remove: function(o)
{
    delete this[o.id];
}
};

function BiMenu()
{
    BiEventTarget.call(this);
    this._children = [];
    this._xulElement = document.createElementNS(xulNs, "menupopup");
    this.id = menuCache.getId();
    menuCache[this.id] = this;
    this._xulElement.setAttribute("id", this.id);
    this._xulElement.setAttribute("onpopupshowing", "menuCache[this.id]._onbeforeshow()");
    this._xulElement.setAttribute("onpopupshown", "menuCache[this.id]._onshow()");
    this._xulElement.setAttribute("onpopuphidden", "menuCache[this.id]._onhide()");
}

var _p = BiMenu.prototype = new BiEventTarget;
_p._className = "BiMenu";
_p._parent = null;
_p._left = 0;
_p._top = 0;
_p._width = null;
_p._height = null;
_p._component = null;
_p._showTimeStamp = new Date(0);
_p._hideTimeStamp = new Date(0);
_p._visible = false;
BiMenu.prototype.getShowTimeStamp = function()
{
    return this._showTimeStamp;
} ;

BiMenu.prototype.getHideTimeStamp = function()
{
    return this._hideTimeStamp;
} ;

_p._onbeforeshow = function()
{
    this.dispatchEvent(new BiEvent("beforeshow"));
} ;

_p._onshow = function()
{
    this._showTimeStamp = new Date;
    this._visible = true;
    this._updateLocation();
    this.dispatchEvent(new BiEvent("show"));
};

_p._onhide = function()
{
    this._hideTimeStamp = new Date;
    this._visible = false;
    this._updateLocation();
    this.dispatchEvent(new BiEvent("hide"));
};

_p.add = function(oChild, oBefore)
{
    if (oBefore)
        this._xulElement.insertBefore(oChild._xulElement, oBefore._xulElement);

    else
        this._xulElement.appendChild(oChild._xulElement);

    var p = oChild._parent;

    if (oBefore == null)
    {
        if (p != null)
            p.remove(oChild);

        this._children.push(oChild);
    }

    else
    {
        if (oBefore._parent != this)
            throw new Error("Can only add components before siblings");

        if (p != null)
            p.remove(oChild);

        this._children.insertBefore(oChild, oBefore);
    }

    oChild._parent = this;
};

_p.remove = function(oChild)
{
    this._xulElement.removeChild(oChild._xulElement);

    if (oChild._parent != this)
        throw new Error("Can only remove children");

    this._children.remove(oChild);
    oChild._parent = null;
    return oChild;
};

_p.removeAll = function()
{
    var cs = this.getChildren();
    var l = cs.length;

    for (var i = 0; i < l; i++)
    {
        this.remove(cs[i]);
        cs[i].dispose();
    }
};

BiMenu.prototype.getParent = function()
{
    return this._parent;
} ;

_p.getParentMenu = function()
{
    if (this._parent)
        return this._parent.getParent();

    return null;
};

BiMenu.prototype.getChildren = function()
{
    return this._children;
} ;

_p.hasChildren = function()
{
    return this._children.length > 0;
} ;

_p.getTopLevelComponent = function()
{
    if (this._parent == null)
        return null;

    return this._parent.getTopLevelComponent();
};

_p.contains = function(oDescendant)
{
    if (oDescendant == this)
        return true;

    var p = oDescendant.getParent();

    if (p == null)
        return false;

    return this.contains(p);
};

_p.getFirstChild = function()
{
    return this._children[0];
} ;

_p.getLastChild = function()
{
    return this._children[this._children.length - 1];
} ;

_p.setVisible = function(b)
{
    if (b)
    {
        this._insertContextMenu();
        this._xulElement.showPopup();
    }

    else
        this._xulElement.hidePopup();
};

_p.setLocation = function(nLeft, nTop)
{
    this._left = nLeft;
    this._top = nTop;
    this._updateLocation();
};

_p._insertContextMenu = function()
{
    var mbLeft = 0, mbTop = 0;

    if (!BiMenu._contextMenuBar)
    {
        var mb = BiMenu._contextMenuBar = document.createElementNS(xulNs, "menubar");
        var m = document.createElementNS(xulNs, "menu");
        m.setAttribute("label", "");
        m.setAttribute("style", "-moz-opacity:0;");
        mb.appendChild(m);
        document.body.appendChild(mb);
        this._updateLocation();
    }

    var mb = BiMenu._contextMenuBar;
    var m = mb.firstChild;
    BiMenu._contextMenuBar.removeChild(m);

    while (m.hasChildNodes())
        m.removeChild(m.lastChild);

    m.appendChild(this._xulElement);
    BiMenu._contextMenuBar.appendChild(m);
};

_p._updateLocation = function()
{
    if (BiMenu._contextMenuBar)
    {
        var mb = BiMenu._contextMenuBar;
        var mbLeft = 0, mbTop = 0;
        var docBo = document.getBoxObjectFor(document.documentElement);

        if (this._left)
            mbLeft = this._left - docBo.screenX;

        if (this._top)
            mbTop = this._top - docBo.screenY;

        var mbHeight = mb.boxObject.height;
        mb.setAttribute("style",
                        "position:absolute;overflow:hidden;" + "width:0;height:0;" + "left:" + mbLeft + "px;top:"
                            + (mbTop + -mbHeight) + "px;");
    }
};

_p.setLeft = function(nLeft)
{
    this.setLocation(nLeft, this.getTop());
} ;

_p.setTop = function(nTop)
{
    this.setLocation(this.getLeft(), nTop);
} ;

_p.setSize = function(nWidth, nHeight)
{
    this._width = nWidth;
    this._height = nHeight;

    if (this.getIsVisible())
        this._xulElement.sizeTo(nWidth, nHeight);
};

_p.setWidth = function(nWidth)
{
    this.setSize(nWidth, this.getHeight());
} ;

_p.setHeight = function(nWidth)
{
    this.setSize(nWidth, this.getHeight());
} ;

_p.getIsVisible = function()
{
    return this._visible;
} ;

_p.getWidth = function()
{
    if (!this._xulElement.parentNode)
        this._insertContextMenu();

    return this._xulElement.boxObject.width;
};

_p.getHeight = function()
{
    if (!this._xulElement.parentNode)
        this._insertContextMenu();

    return this._xulElement.boxObject.height;
};

_p.getPreferredWidth = function()
{
    return this.getWidth();
} ;

_p.getPreferredHeight = function()
{
    return this.getHeight();
} ;

_p.getLeft = function()
{
    return this._xulElement.boxObject.x;
} ;

_p.getTop = function()
{
    return this._xulElement.boxObject.y;
} ;

_p.getInsetLeft = function()
{
    var w = this._xulElement.ownerDocument.defaultView;
    return parseInt(w.getComputedStyle(this._xulElement, "").borderLeftWidth);
};

_p.getInsetRight = function()
{
    var w = this._xulElement.ownerDocument.defaultView;
    return parseInt(w.getComputedStyle(this._xulElement, "").borderRightpWidth);
};

_p.getInsetTop = function()
{
    var w = this._xulElement.ownerDocument.defaultView;
    return parseInt(w.getComputedStyle(this._xulElement, "").borderTopWidth);
};

_p.getInsetBottom = function()
{
    var w = this._xulElement.ownerDocument.defaultView;
    return parseInt(w.getComputedStyle(this._xulElement, "").borderBottomWidth);
};

_p.dispose = function()
{
    if (this._disposed)
        return;

    BiEventTarget.prototype.dispose.call(this);
    this._xulElement = null;
    this._component = null;
};

BiMenu.prototype.getComponent = function()
{
    return this._component;
} ;

_p._invalidate = function()
{
} ;

_p.addXmlNode = function(oNode, oXmlResourceParser)
{
    if (oNode.nodeType == 1)
    {
        var c = oXmlResourceParser.fromNode(oNode);

        if (c instanceof BiMenuItem)
            this.add(c);
    }
};

function BiMenuItem(sText, oSubMenu)
{
    BiEventTarget.call(this);
    this._subMenu = oSubMenu;

    if (oSubMenu)
    {
        this._xulElement = document.createElementNS(xulNs, "menu");
        this._xulElement.appendChild(oSubMenu._xulElement);
    }

    else
        this._xulElement = document.createElementNS(xulNs, "menuitem");

    this._xulElement.setAttribute("label", sText);
    this.id = menuCache.getId();
    menuCache[this.id] = this;
    this._xulElement.setAttribute("id", this.id);
    this._xulElement.setAttribute("oncommand", "menuCache[this.id]._onaction();event.stopPropagation()");
}

;
var _p = BiMenuItem.prototype = new BiEventTarget;
_p._className = "BiMenuItem";
BiMenuItem.prototype.getParent = function()
{
    return this._parent;
} ;

_p.getTopLevelComponent = function()
{
    if (this._parent == null)
        return null;

    return this._parent.getTopLevelComponent();
};

_p.contains = function(oDescendant)
{
    if (oDescendant == this)
        return true;

    var p = oDescendant.getParent();

    if (p == null)
        return false;

    return this.contains(p);
};

_p.getPreviousSibling = function()
{
    var p = this.getParent();

    if (p == null)
        return null;

    var cs = p.getChildren();
    return cs[cs.indexOf(this) - 1]
};

_p.getNextSibling = function()
{
    var p = this.getParent();

    if (p == null)
        return null;

    var cs = p.getChildren();
    return cs[cs.indexOf(this) + 1]
};

_p.getText = function()
{
    var s = this._xulElement.getAttribute("label");
    return s != "undefined" ? s : "";
};

_p.setText = function(sText)
{
    return this._xulElement.setAttribute("label", sText);
} ;

_p.getHtml = function()
{
    return BiLabel.textToHtml(this.getText());
} ;

_p.setHtml = function(sHtml)
{
    this.setText(BiLabel.htmlToText(sHtml));
} ;

_p.setIcon = function(oIcon)
{
    this._icon = oIcon;

    if (oIcon == null)
    {
        this._xulElement.removeAttribute("style");
        this._xulElement.removeAttribute("class");
    }

    else
    {
        this._xulElement.setAttribute("style", "list-style-image: url('" + oIcon.getUri() + "');");
        this._xulElement.setAttribute("class", "menuitem-iconic menu-iconic");
    }
};

_p.getIcon = function()
{
    return this._icon;
} ;

_p.setMnemonic = function(s)
{
    this._xulElement.setAttribute("accesskey", s);
} ;