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 /* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 var gContentPane = {

   /**

    * Initializes the fonts dropdowns displayed in this pane.

    */

   init: function ()

   {

     this._rebuildFonts();

     var menulist = document.getElementById("defaultFont");

     if (menulist.selectedIndex == -1) {

       menulist.insertItemAt(0, "", "", "");

       menulist.selectedIndex = 0;

     }

   },

   // UTILITY FUNCTIONS

   /**

    * Utility function to enable/disable the button specified by aButtonID based

    * on the value of the Boolean preference specified by aPreferenceID.

    */

   updateButtons: function (aButtonID, aPreferenceID)

   {

     var button = document.getElementById(aButtonID);

     var preference = document.getElementById(aPreferenceID);

     button.disabled = preference.value != true;

     return undefined;

   },

   // BEGIN UI CODE

   /*

    * Preferences:

    *

    * dom.disable_open_during_load

    * - true if popups are blocked by default, false otherwise

    */

   // POP-UPS

   /**

    * Displays the popup exceptions dialog where specific site popup preferences

    * can be set.

    */

   showPopupExceptions: function ()

   {

     var bundlePreferences = document.getElementById("bundlePreferences");

     var params = { blockVisible: false, sessionVisible: false, allowVisible: true, prefilledHost: "", permissionType: "popup" };

     params.windowTitle = bundlePreferences.getString("popuppermissionstitle");

     params.introText = bundlePreferences.getString("popuppermissionstext");

     document.documentElement.openWindow("Browser:Permissions",

                                         "chrome://browser/content/preferences/permissions.xul",

                                         "", params);

   },

   // FONTS

   /**

    * Populates the default font list in UI.

    */

   _rebuildFonts: function ()

   {

     var langGroupPref = document.getElementById("font.language.group");

     this._selectDefaultLanguageGroup(langGroupPref.value,

                                      this._readDefaultFontTypeForLanguage(langGroupPref.value) == "serif");

   },

   /**

    * 

    */

   _selectDefaultLanguageGroup: function (aLanguageGroup, aIsSerif)

   {

     const kFontNameFmtSerif         = "font.name.serif.%LANG%";

     const kFontNameFmtSansSerif     = "font.name.sans-serif.%LANG%";

     const kFontNameListFmtSerif     = "font.name-list.serif.%LANG%";

     const kFontNameListFmtSansSerif = "font.name-list.sans-serif.%LANG%";

     const kFontSizeFmtVariable      = "font.size.variable.%LANG%";

     var prefs = [{ format   : aIsSerif ? kFontNameFmtSerif : kFontNameFmtSansSerif,

                    type     : "fontname",

                    element  : "defaultFont",

                    fonttype : aIsSerif ? "serif" : "sans-serif" },

                  { format   : aIsSerif ? kFontNameListFmtSerif : kFontNameListFmtSansSerif,

                    type     : "unichar",

                    element  : null,

                    fonttype : aIsSerif ? "serif" : "sans-serif" },

                  { format   : kFontSizeFmtVariable,

                    type     : "int",

                    element  : "defaultFontSize",

                    fonttype : null }];

     var preferences = document.getElementById("contentPreferences");

     for (var i = 0; i < prefs.length; ++i) {

       var preference = document.getElementById(prefs[i].format.replace(/%LANG%/, aLanguageGroup));

       if (!preference) {

         preference = document.createElement("preference");

         var name = prefs[i].format.replace(/%LANG%/, aLanguageGroup);

         preference.id = name;

         preference.setAttribute("name", name);

         preference.setAttribute("type", prefs[i].type);

         preferences.appendChild(preference);

       }

       if (!prefs[i].element)

         continue;

       var element = document.getElementById(prefs[i].element);

       if (element) {

         element.setAttribute("preference", preference.id);

         if (prefs[i].fonttype)

           FontBuilder.buildFontList(aLanguageGroup, prefs[i].fonttype, element);

         preference.setElementValue(element);

       }

     }

   },

   /**

    * Returns the type of the current default font for the language denoted by

    * aLanguageGroup.

    */

   _readDefaultFontTypeForLanguage: function (aLanguageGroup)

   {

     const kDefaultFontType = "font.default.%LANG%";

     var defaultFontTypePref = kDefaultFontType.replace(/%LANG%/, aLanguageGroup);

     var preference = document.getElementById(defaultFontTypePref);

     if (!preference) {

       preference = document.createElement("preference");

       preference.id = defaultFontTypePref;

       preference.setAttribute("name", defaultFontTypePref);

       preference.setAttribute("type", "string");

       preference.setAttribute("onchange", "gContentPane._rebuildFonts();");

       document.getElementById("contentPreferences").appendChild(preference);

     }

     return preference.value;

   },

   /**

    * Displays the fonts dialog, where web page font names and sizes can be

    * configured.

    */  

   configureFonts: function ()

   {

     document.documentElement.openSubDialog("chrome://browser/content/preferences/fonts.xul",

                                            "", null);

   },

   /**

    * Displays the colors dialog, where default web page/link/etc. colors can be

    * configured.

    */

   configureColors: function ()

   {

     document.documentElement.openSubDialog("chrome://browser/content/preferences/colors.xul",

                                            "", null);  

   },

   // LANGUAGES

   /**

    * Shows a dialog in which the preferred language for web content may be set.

    */

   showLanguages: function ()

   {

     document.documentElement.openSubDialog("chrome://browser/content/preferences/languages.xul",

                                            "", null);

   }

 };