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99 lines
4.1 KiB
JavaScript
99 lines
4.1 KiB
JavaScript
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998-1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* R.J. Keller <rlk@trfenv.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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const MOZILLA_CONTENT_PACK = "chrome://help/locale/mozillahelp.rdf";
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//Set the default content pack to the Mozilla content pack. Use the
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//setHelpFileURI function to set this value.
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var helpFileURI = MOZILLA_CONTENT_PACK;
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// openHelp - Opens up the Mozilla Help Viewer with the specified
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// topic and content pack.
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// see http://www.mozilla.org/projects/help-viewer/content_packs.html
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function openHelp(topic, contentPack)
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{
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//cp is the content pack to use in this function. If the contentPack
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//parameter was set, we will use that content pack. If not, we will
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//use the default content pack set by setHelpFileURI().
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var cp = contentPack || helpFileURI;
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// Try to find previously opened help.
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var topWindow = locateHelpWindow(cp);
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if ( topWindow ) {
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// Open topic in existing window.
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topWindow.focus();
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topWindow.displayTopic(topic);
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} else {
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// Open topic in new window.
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const params = Components.classes["@mozilla.org/embedcomp/dialogparam;1"]
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.createInstance(Components.interfaces.nsIDialogParamBlock);
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params.SetNumberStrings(2);
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params.SetString(0, cp);
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params.SetString(1, topic);
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const ww = Components.classes["@mozilla.org/embedcomp/window-watcher;1"]
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.getService(Components.interfaces.nsIWindowWatcher);
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ww.openWindow(null, "chrome://help/content/help.xul", "_blank", "chrome,all,alwaysRaised,dialog=no", params);
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}
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}
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//setHelpFileURI - Sets the default content pack to use in the Help Viewer
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function setHelpFileURI(rdfURI) {
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helpFileURI = rdfURI;
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}
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// Locate mozilla:help window (if any) opened for this help file uri.
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function locateHelpWindow(helpFileURI) {
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const windowManager = Components.classes['@mozilla.org/appshell/window-mediator;1']
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.getService(Components.interfaces.nsIWindowMediator);
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var iterator = windowManager.getEnumerator("mozilla:help");
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var topWindow = null;
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var currentWindow;
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// Loop through the help windows looking for one with the
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// current Help Content Pack loaded.
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while (iterator.hasMoreElements()) {
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currentWindow = iterator.getNext();
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if (currentWindow.getHelpFileURI() == helpFileURI) {
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topWindow = currentWindow;
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break;
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}
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}
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return topWindow;
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}
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