The Tor Browser: widget/windows/winrt/MetroApp.cpp@b8a032363ba2 (annotated)

widget/windows/winrt/MetroApp.cpp@b8a032363ba2 (annotated)

widget/windows/winrt/MetroApp.cpp

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

 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* 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/. */
 #include "MetroApp.h"
 #include "MetroWidget.h"
 #include "mozilla/IOInterposer.h"
 #include "mozilla/widget/AudioSession.h"
 #include "nsIRunnable.h"
 #include "MetroUtils.h"
 #include "MetroAppShell.h"
 #include "nsICommandLineRunner.h"
 #include "FrameworkView.h"
 #include "nsAppDirectoryServiceDefs.h"
 #include "GeckoProfiler.h"
 #include <shellapi.h>
 using namespace ABI::Windows::ApplicationModel;
 using namespace ABI::Windows::ApplicationModel::Core;
 using namespace ABI::Windows::UI::Core;
 using namespace ABI::Windows::System;
 using namespace ABI::Windows::Foundation;
 using namespace Microsoft::WRL;
 using namespace Microsoft::WRL::Wrappers;
 using namespace mozilla::widget;
 // Metro specific XRE methods we call from here on an
 // appropriate thread.
 extern nsresult XRE_metroStartup(bool runXREMain);
 extern void XRE_metroShutdown();
 static const char* gGeckoThreadName = "GeckoMain";
 #ifdef PR_LOGGING
 extern PRLogModuleInfo* gWindowsLog;
 #endif
 namespace mozilla {
 namespace widget {
 namespace winrt {
 ComPtr<FrameworkView> sFrameworkView;
 ComPtr<MetroApp> sMetroApp;
 ComPtr<ICoreApplication> sCoreApp;
 bool MetroApp::sGeckoShuttingDown = false;
 ////////////////////////////////////////////////////
 // IFrameworkViewSource impl.
 // Called after CoreApplication::Run(app)
 HRESULT
 MetroApp::CreateView(ABI::Windows::ApplicationModel::Core::IFrameworkView **aViewProvider)
 {
   // This entry point is called on the metro main thread, but the thread won't
   // be recognized as such until after Run() is called below. XPCOM has not
   // gone through startup at this point.
   // Note that we create the view which creates our native window for us. The
   // gecko widget gets created by gecko, and the two get hooked up later in
   // MetroWidget::Create().
   LogFunction();
   sFrameworkView = Make<FrameworkView>(this);
   sFrameworkView.Get()->AddRef();
   *aViewProvider = sFrameworkView.Get();
   return !sFrameworkView ? E_FAIL : S_OK;
 }
 ////////////////////////////////////////////////////
 // MetroApp impl.
 void
 MetroApp::Run()
 {
   LogThread();
   // Name this thread for debugging and register it with the profiler
   // and IOInterposer as the main gecko thread.
   char aLocal;
   PR_SetCurrentThreadName(gGeckoThreadName);
   profiler_register_thread(gGeckoThreadName, &aLocal);
   IOInterposer::RegisterCurrentThread(true);
   HRESULT hr;
   hr = sCoreApp->add_Suspending(Callback<__FIEventHandler_1_Windows__CApplicationModel__CSuspendingEventArgs_t>(
     this, &MetroApp::OnSuspending).Get(), &mSuspendEvent);
   AssertHRESULT(hr);
   hr = sCoreApp->add_Resuming(Callback<__FIEventHandler_1_IInspectable_t>(
     this, &MetroApp::OnResuming).Get(), &mResumeEvent);
   AssertHRESULT(hr);
   WinUtils::Log("Calling XRE_metroStartup.");
   nsresult rv = XRE_metroStartup(true);
   WinUtils::Log("Exiting XRE_metroStartup.");
   if (NS_FAILED(rv)) {
     WinUtils::Log("XPCOM startup initialization failed, bailing. rv=%X", rv);
     CoreExit();
   }
 }
 // Free all xpcom related resources before calling the xre shutdown call.
 // Must be called on the metro main thread. Currently called from appshell.
 void
 MetroApp::Shutdown()
 {
   LogThread();
   if (sCoreApp) {
     sCoreApp->remove_Suspending(mSuspendEvent);
     sCoreApp->remove_Resuming(mResumeEvent);
   }
   if (sFrameworkView) {
     sFrameworkView->Shutdown();
   }
   MetroApp::sGeckoShuttingDown = true;
   // Shut down xpcom
   XRE_metroShutdown();
   // Unhook this thread from the profiler
   profiler_unregister_thread();
 }
 // Request a shutdown of the application
 void
 MetroApp::CoreExit()
 {
   LogFunction();
   HRESULT hr;
   ComPtr<ICoreApplicationExit> coreExit;
   HStringReference className(RuntimeClass_Windows_ApplicationModel_Core_CoreApplication);
   hr = GetActivationFactory(className.Get(), coreExit.GetAddressOf());
   NS_ASSERTION(SUCCEEDED(hr), "Activation of ICoreApplicationExit");
   if (SUCCEEDED(hr)) {
     coreExit->Exit();
   }
 }
 void
 MetroApp::ActivateBaseView()
 {
   if (sFrameworkView) {
     sFrameworkView->ActivateView();
   }
 }
 /*
  * TBD: when we support multiple widgets, we'll need a way to sync up the view
  * created in CreateView with the widget gecko creates. Currently we only have
  * one view (sFrameworkView) and one main widget.
  */
 void
 MetroApp::SetWidget(MetroWidget* aPtr)
 {
   LogThread();
   NS_ASSERTION(aPtr, "setting null base widget?");
   // Both of these calls AddRef the ptr we pass in
   aPtr->SetView(sFrameworkView.Get());
   sFrameworkView->SetWidget(aPtr);
 }
 ////////////////////////////////////////////////////
 // MetroApp events
 HRESULT
 MetroApp::OnSuspending(IInspectable* aSender, ISuspendingEventArgs* aArgs)
 {
   LogThread();
   PostSuspendResumeProcessNotification(true);
   return S_OK;
 }
 HRESULT
 MetroApp::OnResuming(IInspectable* aSender, IInspectable* aArgs)
 {
   LogThread();
   PostSuspendResumeProcessNotification(false);
   return S_OK;
 }
 HRESULT
 MetroApp::OnAsyncTileCreated(ABI::Windows::Foundation::IAsyncOperation<bool>* aOperation,
                              AsyncStatus aStatus)
 {
   WinUtils::Log("Async operation status: %d", aStatus);
   MetroUtils::FireObserver("metro_on_async_tile_created");
   return S_OK;
 }
 // static
 void
 MetroApp::PostSuspendResumeProcessNotification(const bool aIsSuspend)
 {
   static bool isSuspend = false;
   if (isSuspend == aIsSuspend) {
     return;
   }
   isSuspend = aIsSuspend;
   MetroUtils::FireObserver(aIsSuspend ? "suspend_process_notification" :
                                         "resume_process_notification");
 }
 // static
 void
 MetroApp::PostSleepWakeNotification(const bool aIsSleep)
 {
   static bool isSleep = false;
   if (isSleep == aIsSleep) {
     return;
   }
   isSleep = aIsSleep;
   MetroUtils::FireObserver(aIsSleep ? "sleep_notification" :
                                       "wake_notification");
 }
 } } }
 static bool
 IsBackgroundSessionClosedStartup()
 {
   int argc;
   LPWSTR *argv = CommandLineToArgvW(GetCommandLineW(), &argc);
   bool backgroundSessionClosed = argc > 1 && !wcsicmp(argv[1], L"-BackgroundSessionClosed");
   LocalFree(argv);
   return backgroundSessionClosed;
 }
 bool
 XRE_MetroCoreApplicationRun()
 {
   HRESULT hr;
   LogThread();
   using namespace mozilla::widget::winrt;
   sMetroApp = Make<MetroApp>();
   HStringReference className(RuntimeClass_Windows_ApplicationModel_Core_CoreApplication);
   hr = GetActivationFactory(className.Get(), sCoreApp.GetAddressOf());
   if (FAILED(hr)) {
     LogHRESULT(hr);
     return false;
   }
   // Perform any cleanup for unclean shutdowns here, such as when the background session
   // is closed via the appbar on the left when outside of Metro.  Windows restarts the
   // process solely for cleanup reasons.
   if (IsBackgroundSessionClosedStartup() && SUCCEEDED(XRE_metroStartup(false))) {
     // Whether or  not to use sessionstore depends on if the bak exists.  Since host process
     // shutdown isn't a crash we shouldn't restore sessionstore.
     nsCOMPtr<nsIFile> sessionBAK;
     if (NS_FAILED(NS_GetSpecialDirectory("ProfDS", getter_AddRefs(sessionBAK)))) {
       return false;
     }
     sessionBAK->AppendNative(nsDependentCString("sessionstore.bak"));
     bool exists;
     if (NS_SUCCEEDED(sessionBAK->Exists(&exists)) && exists) {
       sessionBAK->Remove(false);
     }
     return false;
   }
   hr = sCoreApp->Run(sMetroApp.Get());
   WinUtils::Log("Exiting CoreApplication::Run");
   sCoreApp = nullptr;
   sMetroApp = nullptr;
   return true;
 }

The Tor Browser / annotate

widget/windows/winrt/MetroApp.cpp@b8a032363ba2 (annotated)

widget/windows/winrt/MetroApp.cpp