1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "content/public/browser/browser_main_runner.h"
7 #include "base/allocator/allocator_shim.h"
8 #include "base/base_switches.h"
9 #include "base/command_line.h"
10 #include "base/debug/leak_annotations.h"
11 #include "base/debug/trace_event.h"
12 #include "base/logging.h"
13 #include "base/metrics/histogram.h"
14 #include "base/metrics/statistics_recorder.h"
15 #include "content/browser/browser_main_loop.h"
16 #include "content/browser/browser_shutdown_profile_dumper.h"
17 #include "content/browser/notification_service_impl.h"
18 #include "content/public/common/content_switches.h"
19 #include "content/public/common/main_function_params.h"
20 #include "ui/base/ime/input_method_initializer.h"
23 #include "base/win/metro.h"
24 #include "base/win/windows_version.h"
25 #include "ui/base/win/scoped_ole_initializer.h"
28 bool g_exited_main_message_loop = false;
32 class BrowserMainRunnerImpl : public BrowserMainRunner {
34 BrowserMainRunnerImpl()
35 : initialization_started_(false), is_shutdown_(false) {}
37 virtual ~BrowserMainRunnerImpl() {
38 if (initialization_started_ && !is_shutdown_)
42 virtual int Initialize(const MainFunctionParams& parameters) OVERRIDE {
43 TRACE_EVENT0("startup", "BrowserMainRunnerImpl::Initialize");
44 // On Android we normally initialize the browser in a series of UI thread
45 // tasks. While this is happening a second request can come from the OS or
46 // another application to start the browser. If this happens then we must
47 // not run these parts of initialization twice.
48 if (!initialization_started_) {
49 initialization_started_ = true;
52 if (parameters.command_line.HasSwitch(switches::kWaitForDebugger))
53 base::debug::WaitForDebugger(60, true);
57 if (parameters.command_line.HasSwitch(
58 switches::kEnableTextServicesFramework)) {
59 base::win::SetForceToUseTSF();
60 } else if (base::win::GetVersion() < base::win::VERSION_VISTA) {
61 // When "Extend support of advanced text services to all programs"
62 // (a.k.a. Cicero Unaware Application Support; CUAS) is enabled on
63 // Windows XP and handwriting modules shipped with Office 2003 are
64 // installed, "penjpn.dll" and "skchui.dll" will be loaded and then
66 // unless a user installs Office 2003 SP3. To prevent these modules from
67 // being loaded, disable TSF entirely. crbug/160914.
68 // TODO(yukawa): Add a high-level wrapper for this instead of calling
69 // Win32 API here directly.
70 ImmDisableTextFrameService(static_cast<DWORD>(-1));
74 base::StatisticsRecorder::Initialize();
76 notification_service_.reset(new NotificationServiceImpl);
79 // Ole must be initialized before starting message pump, so that TSF
80 // (Text Services Framework) module can interact with the message pump
81 // on Windows 8 Metro mode.
82 ole_initializer_.reset(new ui::ScopedOleInitializer);
85 main_loop_.reset(new BrowserMainLoop(parameters));
89 main_loop_->EarlyInitialization();
91 // Must happen before we try to use a message loop or display any UI.
92 main_loop_->InitializeToolkit();
94 main_loop_->MainMessageLoopStart();
96 // WARNING: If we get a WM_ENDSESSION, objects created on the stack here
97 // are NOT deleted. If you need something to run during WM_ENDSESSION add it
98 // to browser_shutdown::Shutdown or BrowserProcess::EndSession.
100 #if defined(OS_WIN) && !defined(NO_TCMALLOC)
101 // When linking shared libraries, NO_TCMALLOC is defined, and dynamic
102 // allocator selection is not supported.
104 // Make this call before going multithreaded, or spawning any
106 base::allocator::SetupSubprocessAllocator();
108 ui::InitializeInputMethod();
110 main_loop_->CreateStartupTasks();
111 int result_code = main_loop_->GetResultCode();
115 // Return -1 to indicate no early termination.
119 virtual int Run() OVERRIDE {
120 DCHECK(initialization_started_);
121 DCHECK(!is_shutdown_);
122 main_loop_->RunMainMessageLoopParts();
123 return main_loop_->GetResultCode();
126 virtual void Shutdown() OVERRIDE {
127 DCHECK(initialization_started_);
128 DCHECK(!is_shutdown_);
129 #ifdef LEAK_SANITIZER
130 // Invoke leak detection now, to avoid dealing with shutdown-only leaks.
131 // Normally this will have already happened in
132 // BroserProcessImpl::ReleaseModule(), so this call has no effect. This is
133 // only for processes which do not instantiate a BrowserProcess.
134 // If leaks are found, the process will exit here.
135 __lsan_do_leak_check();
137 // The shutdown tracing got enabled in AttemptUserExit earlier, but someone
138 // needs to write the result to disc. For that a dumper needs to get created
139 // which will dump the traces to disc when it gets destroyed.
140 const CommandLine& command_line = *CommandLine::ForCurrentProcess();
141 scoped_ptr<BrowserShutdownProfileDumper> profiler;
142 if (command_line.HasSwitch(switches::kTraceShutdown))
143 profiler.reset(new BrowserShutdownProfileDumper());
146 // The trace event has to stay between profiler creation and destruction.
147 TRACE_EVENT0("shutdown", "BrowserMainRunner");
148 g_exited_main_message_loop = true;
150 main_loop_->ShutdownThreadsAndCleanUp();
152 ui::ShutdownInputMethod();
154 ole_initializer_.reset(NULL);
157 main_loop_.reset(NULL);
159 notification_service_.reset(NULL);
166 // True if we have started to initialize the runner.
167 bool initialization_started_;
169 // True if the runner has been shut down.
172 scoped_ptr<NotificationServiceImpl> notification_service_;
173 scoped_ptr<BrowserMainLoop> main_loop_;
175 scoped_ptr<ui::ScopedOleInitializer> ole_initializer_;
178 DISALLOW_COPY_AND_ASSIGN(BrowserMainRunnerImpl);
182 BrowserMainRunner* BrowserMainRunner::Create() {
183 return new BrowserMainRunnerImpl();
186 } // namespace content