Print Preview: Populating print preview tab title as soon as it is known.

chrome/browser/ui/webui/print_preview_handler.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/print_preview_handler.h"
 
 #include <string>
 
 #include "base/base64.h"
 #if !defined(OS_CHROMEOS)
@@ skipping 429 matching lines @@
   web_ui_->RegisterMessageCallback("reloadCrashedInitiatorTab",
       NewCallback(this, &PrintPreviewHandler::HandleReloadCrashedInitiatorTab));
   web_ui_->RegisterMessageCallback("closePrintPreviewTab",
       NewCallback(this, &PrintPreviewHandler::HandleClosePreviewTab));
   web_ui_->RegisterMessageCallback("hidePreview",
       NewCallback(this, &PrintPreviewHandler::HandleHidePreview));
   web_ui_->RegisterMessageCallback("cancelPendingPrintRequest",
       NewCallback(this, &PrintPreviewHandler::HandleCancelPendingPrintRequest));
   web_ui_->RegisterMessageCallback("saveLastPrinter",
       NewCallback(this, &PrintPreviewHandler::HandleSaveLastPrinter));
+  web_ui_->RegisterMessageCallback("getInitiatorTabTitle",
+      NewCallback(this, &PrintPreviewHandler::HandleGetInitiatorTabTitle));
 }
 
 TabContentsWrapper* PrintPreviewHandler::preview_tab_wrapper() const {
   return TabContentsWrapper::GetCurrentWrapperForContents(preview_tab());
 }
 TabContents* PrintPreviewHandler::preview_tab() const {
   return web_ui_->tab_contents();
 }
 
 void PrintPreviewHandler::HandleGetDefaultPrinter(const ListValue*) {
@@ skipping 281 matching lines @@
                        regenerate_preview_request_count_);
 
   ActivateInitiatorTabAndClosePreviewTab();
 }
 
 void PrintPreviewHandler::ReportStats() {
   UMA_HISTOGRAM_COUNTS("PrintPreview.ManagePrinters",
                        manage_printers_dialog_request_count_);
 }
 
+void PrintPreviewHandler::HandleGetInitiatorTabTitle(const ListValue* args) {
+  PrintPreviewUI* print_preview_ui = static_cast<PrintPreviewUI*>(web_ui_);
+  print_preview_ui->OnGetInitiatorTabTitle();
+}
+
 void PrintPreviewHandler::ActivateInitiatorTabAndClosePreviewTab() {
   TabContentsWrapper* initiator_tab = GetInitiatorTab();
   if (initiator_tab) {
     static_cast<RenderViewHostDelegate*>(
         initiator_tab->tab_contents())->Activate();
   }
   ClosePrintPreviewTab();
 }
 
 void PrintPreviewHandler::SendPrinterCapabilities(
@@ skipping 213 matching lines @@
     return;
 
   // We no longer require the initiator tab details. Remove those details
   // associated with the preview tab to allow the initiator tab to create
   // another preview tab.
   printing::PrintPreviewTabController* tab_controller =
      printing::PrintPreviewTabController::GetInstance();
   if (tab_controller)
     tab_controller->EraseInitiatorTabInfo(preview_tab_wrapper());
 }