/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla 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/MPL/
 *
 * 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.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Joe Hewitt <hewitt@netscape.com> (original author)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

/***************************************************************
* SidebarPrefs -------------------------------------------------
*  The controller for the lovely sidebar prefs panel.
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
* REQUIRED IMPORTS:
*   chrome://inspector/content/jsutil/xpcom/XPCU.js
*   chrome://inspector/content/jsutil/rdf/RDFU.js
****************************************************************/

//////////// global variables /////////////////////

var sidebarPref;

//////////// global constants ////////////////////

const kDirServiceCID       = "@mozilla.org/file/directory_service;1"
const kNCURI               = "http://home.netscape.com/NC-rdf#";
const kSidebarPanelId      = "UPnls"; // directory services property to find panels.rdf
const kSidebarURNPanelList = "urn:sidebar:current-panel-list";
const kSidebarURN3rdParty  = "urn:sidebar:3rdparty-panel";
const kSidebarURL          = "chrome://inspector/content/sidebar.xul";

//////////////////////////////////////////////////

window.addEventListener("load", SidebarPrefs_initialize, false);

function SidebarPrefs_initialize()
{
  sidebarPref = new SidebarPrefs();
  sidebarPref.initSidebarData();
}

///// class SidebarPrefs /////////////////////////

function SidebarPrefs()
{
}

SidebarPrefs.prototype = 
{
  
  ///////////////////////////////////////////////////////////////////////////
  // Because nsSidebar has been so mean to me, I'm going to re-write it's
  // addPanel code right here so I don't have to fight with it.  Pbbbbt!
  ///////////////////////////////////////////////////////////////////////////

  initSidebarData: function()
  {
    var file = this.getDirectoryFile(kSidebarPanelId);
    if (file)
      RDFU.loadDataSource(file, gSidebarLoadListener);
  },

  initSidebarData2: function(aDS)
  {
    var res = aDS.GetTarget(gRDF.GetResource(kSidebarURNPanelList), gRDF.GetResource(kNCURI + "panel-list"), true);
    this.mDS = aDS;
    this.mPanelSeq = RDFU.makeSeq(aDS, res);
    this.mPanelRes = gRDF.GetResource(kSidebarURN3rdParty + ":" + kSidebarURL);
    
    if (this.isSidebarInstalled()) {
      document.getElementById("tbxSidebar").setAttribute("hidden", "true");      
    }
  },

  isSidebarInstalled: function()
  {
    return this.mPanelSeq.IndexOf(this.mPanelRes) != -1;
  },

  installSidebar: function()
  {
    if (this.isSidebarInstalled()) {
      return false;
    }

    var bundle = document.getElementById("inspector-bundle");
    var kSidebarTitle = bundle.getString("sidebar.title");

    this.mDS.Assert(this.mPanelRes, gRDF.GetResource(kNCURI + "title"), gRDF.GetLiteral(kSidebarTitle), true);
    this.mDS.Assert(this.mPanelRes, gRDF.GetResource(kNCURI + "content"), gRDF.GetLiteral(kSidebarURL), true);
    this.mPanelSeq.AppendElement(this.mPanelRes);
    this.forceSidebarRefresh();

    var msg = document.getElementById("txSidebarMsg");
    msg.removeChild(msg.firstChild);

    msg.appendChild(document.createTextNode(bundle.getString("sidebarInstalled"))); 
    var btn = document.getElementById("btnSidebarInstall");
    btn.setAttribute("disabled", "true");

    return true;
  },

  forceSidebarRefresh: function()
  {
    var listRes = gRDF.GetResource(kSidebarURNPanelList);
    var refreshRes = gRDF.GetResource(kNCURI + "refresh");
    var trueRes = gRDF.GetLiteral("true");
    this.mDS.Assert(listRes, refreshRes, trueRes, true);
    this.mDS.Unassert(listRes, refreshRes, trueRes);
  },

  getDirectoryFile: function(aFileId)
  {
    try {
      var dirService = XPCU.getService(kDirServiceCID, "nsIProperties");
      var file = dirService.get(aFileId, Components.interfaces.nsIFile);
      if (!file.exists())
        return null;

      var ioService = XPCU.getService("@mozilla.org/network/io-service;1", "nsIIOService");
      var fileHandler = XPCU.QI(ioService.getProtocolHandler("file"), "nsIFileProtocolHandler");

      return fileHandler.getURLSpecFromFile(file);

    } catch (ex) {
      return null;
    }
  }

};

var gSidebarLoadListener = {
  onDataSourceReady: function(aDS) 
  {
    sidebarPref.initSidebarData2(aDS);
  },

  onError: function()
  {
  }
};