// the Folder or Thread Pane.    if (event.button == 2)    {      gRightMouseButtonDown = true;      ChangeSelectionWithoutContentLoad(event, event.target.parentNode);    }    else      gRightMouseButtonDown = false;}function FolderPaneOnClick(event){    // we only care about button 0 (left click) events    if (event.button != 0)        return;    var folderTree = GetFolderTree();    var row = {};    var col = {};    var elt = {};    folderTree.treeBoxObject.getCellAt(event.clientX, event.clientY, row, col, elt);    if (row.value == -1) {      if (event.originalTarget.localName == "treecol") {        // clicking on the name column in the folder pane should not sort        event.stopPropagation();      }    }    else if ((event.originalTarget.localName == "slider") ||             (event.originalTarget.localName == "scrollbarbutton")) {      event.stopPropagation();    }    else if ((event.detail == 2) && (elt.value != "twisty") &&             (folderTree.view.getLevel(row.value) != 0)) {      FolderPaneDoubleClick(row.value, event);    }}function FolderPaneDoubleClick(folderIndex, event){    if (!pref.getBoolPref("mailnews.reuse_thread_window2"))    {      var folderResource = GetFolderResource(GetFolderTree(), folderIndex);      // Open a new msg window only if we are double clicking on       // folders or newsgroups.      MsgOpenNewWindowForFolder(folderResource.Value, -1 /* key */);      // double clicking should not toggle the open / close state of the      // folder.  this will happen if we don't prevent the event from      // bubbling to the default handler in tree.xml      event.stopPropagation();    }}function ChangeSelection(tree, newIndex){    if(newIndex >= 0)    {        tree.view.selection.select(newIndex);        tree.treeBoxObject.ensureRowIsVisible(newIndex);    }}function GetSelectedFolders(){    var folderArray = [];    var k = 0;    var folderTree = GetFolderTree();    var rangeCount = folderTree.view.selection.getRangeCount();    for(var i = 0; i < rangeCount; i++)    {        var startIndex = {};        var endIndex = {};        folderTree.view.selection.getRangeAt(i, startIndex, endIndex);        for (var j = startIndex.value; j <= endIndex.value; j++)        {            var folderResource = GetFolderResource(folderTree, j);            folderArray[k++] = folderResource.Value;        }    }    return folderArray;}function GetSelectedMsgFolders(){    var folderArray = [];    var k = 0;    var folderTree = GetFolderTree();    var rangeCount = folderTree.view.selection.getRangeCount();    for(var i = 0; i < rangeCount; i++)    {        var startIndex = {};        var endIndex = {};        folderTree.view.selection.getRangeAt(i, startIndex, endIndex);        for (var j = startIndex.value; j <= endIndex.value; j++)        {          var folderResource = GetFolderResource(folderTree, j);           if (folderResource.Value != "http://home.netscape.com/NC-rdf#PageTitleFakeAccount") {            var msgFolder = folderResource.QueryInterface(Components.interfaces.nsIMsgFolder);            if(msgFolder)              folderArray[k++] = msgFolder;          }        }    }    return folderArray;}function GetFirstSelectedMessage(){    try {        return gDBView.URIForFirstSelectedMessage;    }    catch (ex) {        return null;    }}function GetSelectedIndices(dbView){  try {    var indicesArray = {};     var length = {};    dbView.getIndicesForSelection(indicesArray,length);    return indicesArray.value;  }  catch (ex) {    dump("ex = " + ex + "\n");    return null;  }}function GetSelectedMessages(){  try {    var messageArray = {};     var length = {};    var view = GetDBView();    view.getURIsForSelection(messageArray,length);    if (length.value)      return messageArray.value;    else       return null;  }  catch (ex) {    dump("ex = " + ex + "\n");    return null;  }}function GetLoadedMsgFolder(){    if (!gDBView) return null;    return gDBView.msgFolder;}function GetLoadedMessage(){    try {        return gDBView.URIForFirstSelectedMessage;    }    catch (ex) {        return null;    }}//Clear everything related to the current message. called after load start page.function ClearMessageSelection(){  ClearThreadPaneSelection();}function GetCompositeDataSource(command){	if (command == "GetNewMessages" || command == "NewFolder" || command == "MarkAllMessagesRead")        return GetFolderDatasource();	return null;}// Figures out how many messages are selected (hilighted - does not necessarily// have the dotted outline) above a given index row value in the thread pane.function NumberOfSelectedMessagesAboveCurrentIndex(index){  var numberOfMessages = 0;  var indicies = GetSelectedIndices(gDBView);  if (indicies && indicies.length)  {    for (var i = 0; i < indicies.length; i++)    {      if (indicies[i] < index)        ++numberOfMessages;      else        break;    }  }  return numberOfMessages;}function SetNextMessageAfterDelete(){  var treeSelection = GetThreadTree().view.selection;  if (treeSelection.isSelected(treeSelection.currentIndex))  {    gNextMessageViewIndexAfterDelete = gDBView.msgToSelectAfterDelete;    gSelectedIndexWhenDeleting = treeSelection.currentIndex;  }  else if(gDBView.removeRowOnMoveOrDelete)  {    // Only set gThreadPaneDeleteOrMoveOccurred to true if the message was    // truly moved to the trash or deleted, as opposed to an IMAP delete    // (where it is only "marked as deleted".  This will prevent bug 142065.    //    // If it's an IMAP delete, then just set gNextMessageViewIndexAfterDelete    // to treeSelection.currentIndex (where the outline is at) because nothing    // was moved or deleted from the folder.    gThreadPaneDeleteOrMoveOccurred = true;    gNextMessageViewIndexAfterDelete = treeSelection.currentIndex - NumberOfSelectedMessagesAboveCurrentIndex(treeSelection.currentIndex);  }  else    gNextMessageViewIndexAfterDelete = treeSelection.currentIndex;}function EnsureFolderIndex(builder, msgFolder){  // try to get the index of the folder in the tree  var index = builder.getIndexOfResource(msgFolder);  if (index == -1) {    // if we couldn't find the folder, open the parent    builder.toggleOpenState(EnsureFolderIndex(builder, msgFolder.parent));    index = builder.getIndexOfResource(msgFolder);  }  return index;}function SelectFolder(folderUri){  dump("selecting folder " + folderUri + "\n");  var folderTree = GetFolderTree();  var folderResource = RDF.GetResource(folderUri);  var msgFolder = folderResource.QueryInterface(Components.interfaces.nsIMsgFolder);  // before we can select a folder, we need to make sure it is "visible"  // in the tree.  to do that, we need to ensure that all its  // ancestors are expanded  var folderIndex = EnsureFolderIndex(folderTree.builderView, msgFolder);  ChangeSelection(folderTree, folderIndex);}function SelectMessage(messageUri){  var msgHdr = messenger.messageServiceFromURI(messageUri).messageURIToMsgHdr(messageUri);  if (msgHdr)    gDBView.selectMsgByKey(msgHdr.messageKey);}function ReloadWithAllParts(){  gDBView.reloadMessageWithAllParts();}function ReloadMessage(){  gDBView.reloadMessage();}function GetDBView(){  return gDBView;}function GetFolderResource(tree, index){  return tree.builderView.getResourceAtIndex(index);}function GetFolderIndex(tree, resource){  return tree.builderView.getIndexOfResource(resource);}function GetFolderAttribute(tree, source, attribute){  var property = RDF.GetResource("http://home.netscape.com/NC-rdf#" + attribute);  var target = tree.database.GetTarget(source, property, true);  if (target)    target = target.QueryInterface(Components.interfaces.nsIRDFLiteral).Value;  return target;}// Some of the per account junk mail settings have been// converted to global prefs. Let's try to migrate some// of those settings from the default account.function MigrateJunkMailSettings(){  var junkMailSettingsVersion = pref.getIntPref("mail.spam.version");  if (!junkMailSettingsVersion)  {    // get the default account, check to see if we have values for our     // globally migrated prefs.    var defaultAccount = accountManager.defaultAccount;    if (defaultAccount && defaultAccount.incomingServer)    {      // we only care about      var prefix = "mail.server." + defaultAccount.incomingServer.key + ".";      if (pref.prefHasUserValue(prefix + "manualMark"))        pref.setBoolPref("mail.spam.manualMark", pref.getBoolPref(prefix + "manualMark"));      if (pref.prefHasUserValue(prefix + "manualMarkMode"))        pref.setIntPref("mail.spam.manualMarkMode", pref.getIntPref(prefix + "manualMarkMode"));      if (pref.prefHasUserValue(prefix + "spamLoggingEnabled"))        pref.setBoolPref("mail.spam.logging.enabled", pref.getBoolPref(prefix + "spamLoggingEnabled"));      if (pref.prefHasUserValue(prefix + "markAsReadOnSpam"))        pref.setBoolPref("mail.spam.markAsReadOnSpam", pref.getBoolPref(prefix + "markAsReadOnSpam"));    }      // bump the version so we don't bother doing this again.    pref.setIntPref("mail.spam.version", 1);  }}// The first time a user runs a build that supports folder views, pre-populate the favorite folders list// with the existing INBOX folders.function MigrateFolderViews(){  var folderViewsVersion = pref.getIntPref("mail.folder.views.version");  if (!folderViewsVersion)  {     var servers = accountManager.allServers;     var server;     var inbox;     for (var index = 0; index < servers.Count(); index++)     {       server = servers.QueryElementAt(index, Components.interfaces.nsIMsgIncomingServer);       if (server)       {         inbox = GetInboxFolder(server);         if (inbox)           inbox.setFlag(MSG_FOLDER_FLAG_FAVORITE);       }     }    pref.setIntPref("mail.folder.views.version", 1);  }}// Thunderbird has been storing old attachment download meta data in downloads.rdf // even though there was no way to show or clean up this data. Now that we are using // the new download manager in toolkit, we don't want to present this old data.// To migrate to the new download manager, remove downloads.rdf.function MigrateAttachmentDownloadStore(){  var attachmentStoreVersion = pref.getIntPref("mail.attachment.store.version");  if (!attachmentStoreVersion)  {    var dirService = Components.classes["@mozilla.org/file/directory_service;1"]                     .getService(Components.interfaces.nsIProperties);    var downloadsFile = dirService.get("DLoads", Components.interfaces.nsIFile);    if (downloadsFile && downloadsFile.exists())      downloadsFile.remove(false);        // bump the version so we don't bother doing this again.    pref.setIntPref("mail.attachment.store.version", 1);   }}