cef/libcef/common/main_delegate.cc
Marshall Greenblatt 9d200c109a - Update to Chromium revision 131752.
- Add support for multi_threaded_message_loop run mode on Windows (issue #522).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@586 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
2012-04-11 18:00:55 +00:00

380 lines
12 KiB
C++

// Copyright (c) 2012 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 "libcef/common/main_delegate.h"
#include "libcef/browser/content_browser_client.h"
#include "libcef/browser/context.h"
#include "libcef/common/cef_switches.h"
#include "libcef/common/command_line_impl.h"
#include "libcef/plugin/content_plugin_client.h"
#include "libcef/renderer/content_renderer_client.h"
#include "libcef/utility/content_utility_client.h"
#include "base/command_line.h"
#include "base/file_path.h"
#include "base/file_util.h"
#include "base/path_service.h"
#include "base/synchronization/waitable_event.h"
#include "base/threading/thread.h"
#include "content/public/browser/browser_main_runner.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/main_function_params.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/base/ui_base_paths.h"
#if defined(OS_WIN)
#include <Objbase.h> // NOLINT(build/include_order)
#endif
#if defined(OS_MACOSX)
#include "base/mac/bundle_locations.h"
#include "base/mac/foundation_util.h"
#include "content/public/common/content_paths.h"
namespace {
FilePath GetFrameworksPath() {
// Start out with the path to the running executable.
FilePath path;
PathService::Get(base::FILE_EXE, &path);
// Up to Contents.
if (base::mac::IsBackgroundOnlyProcess()) {
// The running executable is the helper. Go up five steps:
// Contents/Frameworks/Helper.app/Contents/MacOS/Helper
// ^ to here ^ from here
path = path.DirName().DirName().DirName().DirName().DirName();
} else {
// One step up to MacOS, another to Contents.
path = path.DirName().DirName();
}
DCHECK_EQ(path.BaseName().value(), "Contents");
// Go into the frameworks directory.
return path.Append("Frameworks");
}
// The framework bundle path is used for loading resources, libraries, etc.
void OverrideFrameworkBundlePath() {
FilePath helper_path =
GetFrameworksPath().Append("Chromium Embedded Framework.framework");
base::mac::SetOverrideFrameworkBundlePath(helper_path);
}
void OverrideChildProcessPath() {
// Retrieve the name of the running executable.
FilePath path;
PathService::Get(base::FILE_EXE, &path);
std::string name = path.BaseName().value();
FilePath helper_path = GetFrameworksPath().Append(name+" Helper.app")
.Append("Contents")
.Append("MacOS")
.Append(name+" Helper");
PathService::Override(content::CHILD_PROCESS_EXE, helper_path);
}
} // namespace
#endif // OS_MACOSX
namespace {
// Used to run the UI on a separate thread.
class CefUIThread : public base::Thread {
public:
explicit CefUIThread(const content::MainFunctionParams& main_function_params)
: base::Thread("CefUIThread"),
main_function_params_(main_function_params) {
}
virtual void Init() OVERRIDE {
#if defined(OS_WIN)
// Initializes the COM library on the current thread.
CoInitialize(NULL);
#endif
// Use our own browser process runner.
browser_runner_.reset(content::BrowserMainRunner::Create());
// Initialize browser process state. Results in a call to
// CefBrowserMain::GetMainMessageLoop().
int exit_code = browser_runner_->Initialize(main_function_params_);
CHECK_EQ(exit_code, -1);
}
virtual void CleanUp() OVERRIDE {
browser_runner_->Shutdown();
browser_runner_.reset(NULL);
#if defined(OS_WIN)
// Closes the COM library on the current thread. CoInitialize must
// be balanced by a corresponding call to CoUninitialize.
CoUninitialize();
#endif
}
protected:
content::MainFunctionParams main_function_params_;
scoped_ptr<content::BrowserMainRunner> browser_runner_;
};
} // namespace
CefMainDelegate::CefMainDelegate(CefRefPtr<CefApp> application)
: content_client_(application) {
}
CefMainDelegate::~CefMainDelegate() {
}
bool CefMainDelegate::BasicStartupComplete(int* exit_code) {
#if defined(OS_MACOSX)
OverrideFrameworkBundlePath();
#endif
CommandLine* command_line = CommandLine::ForCurrentProcess();
std::string process_type =
command_line->GetSwitchValueASCII(switches::kProcessType);
if (process_type.empty()) {
// In the browser process. Populate the global command-line object.
const CefSettings& settings = _Context->settings();
if (settings.command_line_args_disabled) {
// Remove any existing command-line arguments.
CommandLine::StringVector argv;
argv.push_back(command_line->GetProgram().value());
command_line->InitFromArgv(argv);
const CommandLine::SwitchMap& map = command_line->GetSwitches();
const_cast<CommandLine::SwitchMap*>(&map)->clear();
}
if (settings.single_process)
command_line->AppendSwitch(switches::kSingleProcess);
if (settings.browser_subprocess_path.length > 0) {
FilePath file_path =
FilePath(CefString(&settings.browser_subprocess_path));
if (!file_path.empty()) {
command_line->AppendSwitchPath(switches::kBrowserSubprocessPath,
file_path);
}
}
if (settings.user_agent.length > 0) {
command_line->AppendSwitchASCII(switches::kUserAgent,
CefString(&settings.user_agent));
} else if (settings.product_version.length > 0) {
command_line->AppendSwitchASCII(switches::kProductVersion,
CefString(&settings.product_version));
}
if (settings.locale.length > 0) {
command_line->AppendSwitchASCII(switches::kLocale,
CefString(&settings.locale));
}
if (settings.pack_loading_disabled) {
command_line->AppendSwitch(switches::kPackLoadingDisabled);
} else {
if (settings.pack_file_path.length > 0) {
FilePath file_path = FilePath(CefString(&settings.pack_file_path));
if (!file_path.empty())
command_line->AppendSwitchPath(switches::kPackFilePath, file_path);
}
if (settings.locales_dir_path.length > 0) {
FilePath file_path = FilePath(CefString(&settings.locales_dir_path));
if (!file_path.empty())
command_line->AppendSwitchPath(switches::kLocalesDirPath, file_path);
}
}
// TODO(cef): Figure out how to support the sandbox.
if (!command_line->HasSwitch(switches::kNoSandbox))
command_line->AppendSwitch(switches::kNoSandbox);
}
if (content_client_.application().get()) {
// Give the application a chance to view/modify the command line.
CefRefPtr<CefCommandLineImpl> commandLinePtr(
new CefCommandLineImpl(command_line, false, false));
content_client_.application()->OnBeforeCommandLineProcessing(
CefString(process_type), commandLinePtr.get());
commandLinePtr->Detach(NULL);
}
return false;
}
void CefMainDelegate::PreSandboxStartup() {
#if defined(OS_MACOSX)
OverrideChildProcessPath();
#endif
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
std::string process_type =
command_line.GetSwitchValueASCII(switches::kProcessType);
content::SetContentClient(&content_client_);
InitializeContentClient(process_type);
if (command_line.HasSwitch(switches::kPackLoadingDisabled))
content_client_.set_pack_loading_disabled(true);
else
InitializeResourceBundle();
}
void CefMainDelegate::SandboxInitialized(const std::string& process_type) {
}
int CefMainDelegate::RunProcess(
const std::string& process_type,
const content::MainFunctionParams& main_function_params) {
if (process_type.empty()) {
const CefSettings& settings = _Context->settings();
if (!settings.multi_threaded_message_loop) {
// Use our own browser process runner.
browser_runner_.reset(content::BrowserMainRunner::Create());
// Initialize browser process state. Results in a call to
// CefBrowserMain::GetMainMessageLoop().
int exit_code = browser_runner_->Initialize(main_function_params);
if (exit_code >= 0)
return exit_code;
} else {
// Run the UI on a separate thread.
scoped_ptr<base::Thread> thread;
thread.reset(new CefUIThread(main_function_params));
base::Thread::Options options;
options.message_loop_type = MessageLoop::TYPE_UI;
if (!thread->StartWithOptions(options)) {
NOTREACHED() << "failed to start UI thread";
return 1;
}
ui_thread_.swap(thread);
}
return 0;
}
return -1;
}
void CefMainDelegate::ProcessExiting(const std::string& process_type) {
if (!content_client_.pack_loading_disabled())
ResourceBundle::CleanupSharedInstance();
}
#if defined(OS_MACOSX)
bool CefMainDelegate::ProcessRegistersWithSystemProcess(
const std::string& process_type) {
return false;
}
bool CefMainDelegate::ShouldSendMachPort(const std::string& process_type) {
return false;
}
bool CefMainDelegate::DelaySandboxInitialization(
const std::string& process_type) {
return false;
}
#elif defined(OS_POSIX)
content::ZygoteForkDelegate* CefMainDelegate::ZygoteStarting() {
return NULL;
}
void CefMainDelegate::ZygoteForked() {
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
std::string process_type =
command_line.GetSwitchValueASCII(switches::kProcessType);
InitializeContentClient(process_type);
}
#endif // OS_MACOSX
void CefMainDelegate::ShutdownBrowser() {
if (browser_runner_.get()) {
browser_runner_->Shutdown();
browser_runner_.reset(NULL);
}
if (ui_thread_.get()) {
// Blocks until the thread has stopped.
ui_thread_->Stop();
ui_thread_.reset();
}
}
void CefMainDelegate::InitializeContentClient(
const std::string& process_type) {
if (process_type.empty()) {
browser_client_.reset(new CefContentBrowserClient);
content::GetContentClient()->set_browser(browser_client_.get());
// Single-process is an unsupported and not fully tested mode.
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(switches::kSingleProcess)) {
content::RenderProcessHost::set_run_renderer_in_process(true);
renderer_client_.reset(new CefContentRendererClient);
content::GetContentClient()->set_renderer(renderer_client_.get());
}
} else if (process_type == switches::kRendererProcess) {
renderer_client_.reset(new CefContentRendererClient);
content::GetContentClient()->set_renderer(renderer_client_.get());
} else if (process_type == switches::kPluginProcess) {
plugin_client_.reset(new CefContentPluginClient);
content::GetContentClient()->set_plugin(plugin_client_.get());
} else if (process_type == switches::kUtilityProcess) {
utility_client_.reset(new CefContentUtilityClient);
content::GetContentClient()->set_utility(utility_client_.get());
}
}
void CefMainDelegate::InitializeResourceBundle() {
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
FilePath pak_file, locales_dir;
if (command_line.HasSwitch(switches::kPackFilePath))
pak_file = command_line.GetSwitchValuePath(switches::kPackFilePath);
if (pak_file.empty()) {
FilePath pak_dir;
PathService::Get(base::DIR_MODULE, &pak_dir);
pak_file = pak_dir.Append(FILE_PATH_LITERAL("cef.pak"));
}
if (!pak_file.empty())
PathService::Override(ui::FILE_RESOURCES_PAK, pak_file);
if (command_line.HasSwitch(switches::kLocalesDirPath))
locales_dir = command_line.GetSwitchValuePath(switches::kLocalesDirPath);
if (!locales_dir.empty())
PathService::Override(ui::DIR_LOCALES, locales_dir);
std::string locale = command_line.GetSwitchValueASCII(switches::kLocale);
if (locale.empty())
locale = "en-US";
const std::string loaded_locale =
ui::ResourceBundle::InitSharedInstanceWithLocale(locale);
CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
#if defined(OS_WIN)
// Explicitly load cef.pak on Windows.
if (file_util::PathExists(pak_file))
ResourceBundle::AddDataPackToSharedInstance(pak_file);
else
NOTREACHED() << "Could not load cef.pak";
#endif
}