gecko-dev/editor/ui/composer/content/sb-file-contextMenu.js

/* 
 * The contents of this file are subject to the Netscape Public
 * License Version 1.1 (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.mozilla.org/NPL/
 *  
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *  
 * The Original Code is Mozilla Communicator client code, released
 * March 31, 1998.
 * 
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation. Portions created by Netscape are
 * Copyright (C) 1999 Netscape Communications Corporation. All
 * Rights Reserved.
 * 
 * Contributor(s): 
 *   Ben Goodger
 */

function fillContextMenu(name,node)
{
    if (!name)    return(false);
    var popupNode = document.getElementById(name);
    if (!popupNode)    return(false);

    var url = GetFileURL(node);             // get the URL of the selected file
    var ext = getFileExtension(url);        // get the extension (type) of file
    
    // remove the menu node (which tosses all of its kids);
    // do this in case any old command nodes are hanging around
    var menuNode = popupNode.childNodes[0];
    popupNode.removeChild(menuNode);

    // create a new menu node
    menuNode = document.createElementNS("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul", "menu");
    popupNode.appendChild(menuNode);

    switch(ext) {
    case "gif":
    case "jpg":
    case "jpeg":
    case "png":
        isImageFile(menuNode,url);
        break;
    case "htm":
    case "html":
        isHTMLFile(menuNode,url);
        break;
    default:
        break;
    }
    
    return(true);
}

function GetFileURL(node)
{
    var url = node.getAttribute('id');

    // Ignore "NC:" urls.
    if (url.substring(0, 3) == "NC:")
    {
        return(false);
    }

	try
	{
		// add support for IE favorites under Win32, and NetPositive URLs under BeOS
		if (url.indexOf("file://") == 0)
		{
			var rdf = Components.classes["@mozilla.org/rdf/rdf-service;1"].getService();
			if (rdf)   rdf = rdf.QueryInterface(Components.interfaces.nsIRDFService);
			if (rdf)
			{
				var fileSys = rdf.GetDataSource("rdf:files");
				if (fileSys)
				{
					var src = rdf.GetResource(url, true);
					var prop = rdf.GetResource("http://home.netscape.com/NC-rdf#URL", true);
					var target = fileSys.GetTarget(src, prop, true);
					if (target)	target = target.QueryInterface(Components.interfaces.nsIRDFLiteral);
					if (target)	target = target.Value;
					if (target)	url = target;
					
				}
			}
		}
	}
	catch(ex)
	{
	}
    return url;
}

function isImageFile(parent,url)
{
    // note: deleted all the doContextCmd stuff from bookmarks.
    var menuItem = document.createElementNS("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul", "menuitem");
    menuItem.setAttribute("value","Insert Image");
    // menuItem.setAttribute("onaction","AutoInsertImage(\'" + url + "\')");
    parent.appendChild(menuItem);
}