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 450 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*) {
+void PrintPreviewHandler::HandleGetDefaultPrinter(const ListValue* /*args*/) {
   scoped_refptr<PrintSystemTaskProxy> task =
       new PrintSystemTaskProxy(AsWeakPtr(),
                                print_backend_.get(),
                                has_logged_printers_count_);
   BrowserThread::PostTask(
       BrowserThread::FILE, FROM_HERE,
       NewRunnableMethod(task.get(),
                         &PrintSystemTaskProxy::GetDefaultPrinter));
 }
 
-void PrintPreviewHandler::HandleGetPrinters(const ListValue*) {
+void PrintPreviewHandler::HandleGetPrinters(const ListValue* /*args*/) {
   scoped_refptr<PrintSystemTaskProxy> task =
       new PrintSystemTaskProxy(AsWeakPtr(),
                                print_backend_.get(),
                                has_logged_printers_count_);
   has_logged_printers_count_ = true;
 
   BrowserThread::PostTask(
       BrowserThread::FILE, FROM_HERE,
       NewRunnableMethod(task.get(),
                         &PrintSystemTaskProxy::EnumeratePrinters));
@@ skipping 138 matching lines @@
     ClearInitiatorTabDetails();
 
     // The PDF being printed contains only the pages that the user selected,
     // so ignore the page range and print all pages.
     settings->Remove(printing::kSettingPageRange, NULL);
     RenderViewHost* rvh = web_ui_->tab_contents()->render_view_host();
     rvh->Send(new PrintMsg_PrintForPrintPreview(rvh->routing_id(), *settings));
   }
 }
 
-void PrintPreviewHandler::HandleHidePreview(const ListValue*) {
+void PrintPreviewHandler::HandleHidePreview(const ListValue* /*args*/) {
   HidePreviewTab();
 }
 
-void PrintPreviewHandler::HandleCancelPendingPrintRequest(const ListValue*) {
+void PrintPreviewHandler::HandleCancelPendingPrintRequest(
+    const ListValue* /*args*/) {
   TabContentsWrapper* initiator_tab = GetInitiatorTab();
   if (initiator_tab) {
     ClearInitiatorTabDetails();
   } else {
     // Initiator tab does not exists. Get the wrapper contents of current tab.
     Browser* browser = BrowserList::GetLastActive();
     if (browser)
       initiator_tab = browser->GetSelectedTabContentsWrapper();
   }
 
@@ skipping 27 matching lines @@
                                print_backend_.get(),
                                has_logged_printers_count_);
 
   BrowserThread::PostTask(
       BrowserThread::FILE, FROM_HERE,
       NewRunnableMethod(task.get(),
                         &PrintSystemTaskProxy::GetPrinterCapabilities,
                         printer_name));
 }
 
-void PrintPreviewHandler::HandleSignin(const ListValue*) {
+void PrintPreviewHandler::HandleSignin(const ListValue* /*args*/) {
   cloud_print_signin_dialog::CreateCloudPrintSigninDialog(preview_tab());
 }
 
-void PrintPreviewHandler::HandleManageCloudPrint(const ListValue*) {
+void PrintPreviewHandler::HandleManageCloudPrint(const ListValue* /*args*/) {
   Browser* browser = BrowserList::GetLastActive();
   browser->OpenURL(CloudPrintURL(browser->profile()).
                    GetCloudPrintServiceManageURL(),
                    GURL(),
                    NEW_FOREGROUND_TAB,
                    PageTransition::LINK);
 }
 
-void PrintPreviewHandler::HandleShowSystemDialog(const ListValue*) {
+void PrintPreviewHandler::HandleShowSystemDialog(const ListValue* /*args*/) {
   ReportStats();
   ReportUserActionHistogram(FALLBACK_TO_ADVANCED_SETTINGS_DIALOG);
 
   TabContentsWrapper* initiator_tab = GetInitiatorTab();
   if (!initiator_tab)
     return;
 
   printing::PrintViewManager* manager = initiator_tab->print_view_manager();
   manager->set_observer(this);
   manager->PrintForSystemDialogNow();
 
   // Cancel the pending preview request if exists.
   PrintPreviewUI* print_preview_ui = static_cast<PrintPreviewUI*>(web_ui_);
   print_preview_ui->OnCancelPendingPreviewRequest();
 }
 
-void PrintPreviewHandler::HandleManagePrinters(const ListValue*) {
+void PrintPreviewHandler::HandleManagePrinters(const ListValue* /*args*/) {
   ++manage_printers_dialog_request_count_;
   printing::PrinterManagerDialog::ShowPrinterManagerDialog();
 }
 
-void PrintPreviewHandler::HandleReloadCrashedInitiatorTab(const ListValue*) {
+void PrintPreviewHandler::HandleReloadCrashedInitiatorTab(
+    const ListValue* /*args*/) {
   ReportStats();
   ReportUserActionHistogram(INITIATOR_TAB_CRASHED);
 
   TabContentsWrapper* initiator_tab = GetInitiatorTab();
   if (!initiator_tab)
     return;
 
   TabContents* contents = initiator_tab->tab_contents();
   contents->OpenURL(contents->GetURL(), GURL(), CURRENT_TAB,
                     PageTransition::RELOAD);
   ActivateInitiatorTabAndClosePreviewTab();
 }
 
-void PrintPreviewHandler::HandleClosePreviewTab(const ListValue*) {
+void PrintPreviewHandler::HandleClosePreviewTab(const ListValue* /*args*/) {
   ReportStats();
   ReportUserActionHistogram(CANCEL);
 
   // Record the number of times the user requests to regenerate preview data
   // before cancelling.
   UMA_HISTOGRAM_COUNTS("PrintPreview.RegeneratePreviewRequest.BeforeCancel",
                        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->SendInitiatorTabTitle();
+}
+
 void PrintPreviewHandler::ActivateInitiatorTabAndClosePreviewTab() {
   TabContentsWrapper* initiator_tab = GetInitiatorTab();
   if (initiator_tab) {
     static_cast<RenderViewHostDelegate*>(
         initiator_tab->tab_contents())->Activate();
   }
   ClosePrintPreviewTab();
 }
 
 void PrintPreviewHandler::SendPrinterCapabilities(
@@ skipping 210 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());
 }