The Tor Browser: toolkit/content/customizeCharset.js@b8a032363ba2 (annotated)

toolkit/content/customizeCharset.js@b8a032363ba2 (annotated)

toolkit/content/customizeCharset.js

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* 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/. */
 //get prefInt services
 var availCharsetDict     = [];
 var prefBranch           = null; //Preferences Interface
 var pref_string_title    = "";
 var pref_string_content  = "";
 var pref_string_object   = null;
 function Init()
 {
   var applicationArea = "";
   if ("arguments" in window && window.arguments[0])
     applicationArea = window.arguments[0];
   prefBranch = Components.classes["@mozilla.org/preferences-service;1"];
   if (prefBranch) {
     prefBranch = prefBranch.getService(Components.interfaces.nsIPrefBranch);
     if (applicationArea.indexOf("mail") != -1) {
       pref_string_title = "intl.charsetmenu.mailedit";
     } else {
     //default is the browser
       pref_string_title = "intl.charsetmenu.browser.static";
     }
     pref_string_object = prefBranch.getComplexValue(pref_string_title, Components.interfaces.nsIPrefLocalizedString)
     pref_string_content = pref_string_object.data;
     AddRemoveLatin1('add');
   }
   LoadAvailableCharSets();
   LoadActiveCharSets();
 }
 function readRDFString(aDS,aRes,aProp)
 {
   var n = aDS.GetTarget(aRes, aProp, true);
   if (n)
     return n.QueryInterface(Components.interfaces.nsIRDFLiteral).Value;
   else
     return "";
 }
 function LoadAvailableCharSets()
 {
   try {
     var available_charsets_listbox = document.getElementById('available_charsets');
     var rdf=Components.classes["@mozilla.org/rdf/rdf-service;1"].getService(Components.interfaces.nsIRDFService);
     var kNC_Root = rdf.GetResource("NC:DecodersRoot");
     var kNC_name = rdf.GetResource("http://home.netscape.com/NC-rdf#Name");
     var rdfDataSource = rdf.GetDataSource("rdf:charset-menu");
     var rdfContainer =
       Components.classes["@mozilla.org/rdf/container;1"]
                 .createInstance(Components.interfaces.nsIRDFContainer);
     rdfContainer.Init(rdfDataSource, kNC_Root);
     var availableCharsets = rdfContainer.GetElements();
     var charset;
     for (var i = 0; i < rdfContainer.GetCount(); i++) {
       charset = availableCharsets.getNext().QueryInterface(Components.interfaces.nsIRDFResource);
       availCharsetDict[i] = new Array(2);
       availCharsetDict[i][0] = readRDFString(rdfDataSource, charset, kNC_name);
       availCharsetDict[i][1] = charset.Value;
       AddListItem(document,
                   available_charsets_listbox,
                   availCharsetDict[i][1],
                   availCharsetDict[i][0]);
     }
   }
   catch (e) {}
 }
 function GetCharSetTitle(id)
 {
   if (availCharsetDict) {
     for (var j = 0; j < availCharsetDict.length; j++) {
       if (availCharsetDict[j][1] == id) {
         return availCharsetDict[j][0];
       }
     }
   }
   return '';
 }
 function AddRemoveLatin1(action)
 {
   var arrayOfPrefs = [];
   arrayOfPrefs = pref_string_content.split(', ');
   if (arrayOfPrefs.length > 0) {
     for (var i = 0; i < arrayOfPrefs.length; i++) {
       if (arrayOfPrefs[i] == 'ISO-8859-1') {
         if (action == 'remove') {
           arrayOfPrefs[i] = arrayOfPrefs[arrayOfPrefs.length-1];
           arrayOfPrefs.length = arrayOfPrefs.length - 1;
         }
         pref_string_content = arrayOfPrefs.join(', ');
         return;
       }
     }
     if (action == 'add') {
       arrayOfPrefs[arrayOfPrefs.length] = 'ISO-8859-1';
       pref_string_content = arrayOfPrefs.join(', ');
     }
   }
 }
 function LoadActiveCharSets()
 {
   var active_charsets = document.getElementById('active_charsets');
   var arrayOfPrefs = [];
   var str;
   var tit;
   arrayOfPrefs = pref_string_content.split(', ');
   if (arrayOfPrefs.length > 0) {
     for (var i = 0; i < arrayOfPrefs.length; i++) {
       str = arrayOfPrefs[i];
       tit = GetCharSetTitle(str);
       if (str && tit)
         AddListItem(document, active_charsets, str, tit);
     }
   }
 }
 function enable_save()
 {
   var save_button = document.documentElement.getButton("accept");
   save_button.removeAttribute('disabled');
 }
 function update_buttons()
 {
   var available_charsets = document.getElementById('available_charsets');
   var active_charsets = document.getElementById('active_charsets');
   var remove_button = document.getElementById('remove_button');
   var add_button = document.getElementById('add_button');
   var up_button = document.getElementById('up_button');
   var down_button = document.getElementById('down_button');
   var activeCharsetSelected = (active_charsets.selectedItems.length > 0);
   remove_button.disabled = !activeCharsetSelected;
   if (activeCharsetSelected) {
     up_button.disabled = !(active_charsets.selectedItems[0].previousSibling);
     down_button.disabled = !(active_charsets.selectedItems[0].nextSibling);
   }
   else {
     up_button.disabled = true;
     down_button.disabled = true;
   }
   add_button.disabled = (available_charsets.selectedItems.length == 0);
 }
 function AddAvailableCharset()
 {
   var active_charsets = document.getElementById('active_charsets');
   var available_charsets = document.getElementById('available_charsets');
   for (var nodeIndex=0; nodeIndex < available_charsets.selectedItems.length;  nodeIndex++)
   {
     var selItem =  available_charsets.selectedItems[nodeIndex];
     var charsetname  = selItem.label;
     var charsetid = selItem.id;
     var already_active = false;
     for (var item = active_charsets.firstChild; item != null; item = item.nextSibling) {
       if (charsetid == item.id) {
         already_active = true;
         break;
       }//if
     }//for
     if (already_active == false) {
       AddListItem(document, active_charsets, charsetid, charsetname);
     }//if
   }//for
   available_charsets.clearSelection();
   enable_save();
 } //AddAvailableCharset
 function RemoveActiveCharset()
 {
   var listbox = document.getElementById('active_charsets');
   var numSelectedItems = listbox.selectedItems.length;
   for (var count = 0; count < numSelectedItems; count ++) {
     listbox.removeChild(listbox.selectedItems[0]);
   }
   listbox.clearSelection();
   enable_save();
 } //RemoveActiveCharset
 function Save()
 {
   // Iterate through the 'active charsets  tree to collect the charsets
   // that the user has chosen.
   var active_charsets = document.getElementById('active_charsets');
   var charsetid    = "";
   var num_charsets = 0;
   var pref_string_content = '';
   for (var item = active_charsets.firstChild; item != null; item = item.nextSibling) {
     charsetid = item.id;
     if (charsetid.length > 1) {
       num_charsets++;
       //separate >1 charsets by commas
       if (num_charsets > 1)
         pref_string_content = pref_string_content + ", " + charsetid;
       else
         pref_string_content = charsetid;
     }
   }
   try
   {
     if (prefBranch) {
       pref_string_object.data = pref_string_content;
       prefBranch.setComplexValue(pref_string_title, Components.interfaces.nsIPrefLocalizedString, pref_string_object);
       window.close();
     }
   }
   catch(ex) {
     confirm('exception' + ex);
   }
   return true;
 } //Save
 function MoveUp() {
   var listbox = document.getElementById('active_charsets');
   if (listbox.selectedItems.length == 1) {
     var selected = listbox.selectedItems[0];
     var before = selected.previousSibling
     if (before) {
       listbox.insertBefore(selected, before);
       listbox.selectItem(selected);
       listbox.ensureElementIsVisible(selected);
     }
   }
   enable_save();
 } //MoveUp
 function MoveDown() {
   var listbox = document.getElementById('active_charsets');
   if (listbox.selectedItems.length == 1) {
     var selected = listbox.selectedItems[0];
     if (selected.nextSibling) {
       if (selected.nextSibling.nextSibling)
         listbox.insertBefore(selected, selected.nextSibling.nextSibling);
       else
         selected.parentNode.appendChild(selected);
       listbox.selectItem(selected);
     }
   }
   enable_save();
 } //MoveDown
 function AddListItem(doc, listbox, ID, UIstring)
 {
   // Create a treerow for the new item
   var item = doc.createElement('listitem');
   // Copy over the attributes
   item.setAttribute('label', UIstring);
   item.setAttribute('id', ID);
   listbox.appendChild(item);
 }