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// 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 "content/utility/utility_thread_impl.h"
#include <stddef.h>
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/memory/scoped_vector.h"
#include "content/child/child_process.h"
#include "content/child/webkitplatformsupport_impl.h"
#include "content/common/child_process_messages.h"
#include "content/common/plugin_list.h"
#include "content/common/utility_messages.h"
#include "content/public/common/content_switches.h"
#include "content/public/utility/content_utility_client.h"
#include "ipc/ipc_sync_channel.h"
#include "third_party/WebKit/public/web/WebKit.h"
#if defined(TOOLKIT_GTK)
#include <gtk/gtk.h>
#include "ui/gfx/gtk_util.h"
#endif
namespace content {
namespace {
template<typename SRC, typename DEST>
void ConvertVector(const SRC& src, DEST* dest) {
dest->reserve(src.size());
for (typename SRC::const_iterator i = src.begin(); i != src.end(); ++i)
dest->push_back(typename DEST::value_type(*i));
}
} // namespace
UtilityThreadImpl::UtilityThreadImpl() : single_process_(false) {
Init();
}
UtilityThreadImpl::UtilityThreadImpl(const std::string& channel_name)
: ChildThread(channel_name),
single_process_(true) {
Init();
}
UtilityThreadImpl::~UtilityThreadImpl() {
}
void UtilityThreadImpl::Shutdown() {
ChildThread::Shutdown();
if (!single_process_)
WebKit::shutdown();
}
bool UtilityThreadImpl::Send(IPC::Message* msg) {
return ChildThread::Send(msg);
}
void UtilityThreadImpl::ReleaseProcessIfNeeded() {
if (batch_mode_)
return;
if (single_process_) {
// Close the channel to cause UtilityProcessHostImpl to be deleted. We need
// to take a different code path than the multi-process case because that
// depends on the child process going away to close the channel, but that
// can't happen when we're in single process mode.
channel()->Close();
} else {
ChildProcess::current()->ReleaseProcess();
}
}
#if defined(OS_WIN)
void UtilityThreadImpl::PreCacheFont(const LOGFONT& log_font) {
Send(new ChildProcessHostMsg_PreCacheFont(log_font));
}
void UtilityThreadImpl::ReleaseCachedFonts() {
Send(new ChildProcessHostMsg_ReleaseCachedFonts());
}
#endif // OS_WIN
void UtilityThreadImpl::Init() {
batch_mode_ = false;
ChildProcess::current()->AddRefProcess();
if (!single_process_) {
// We can only initialize WebKit on one thread, and in single process mode
// we run the utility thread on separate thread. This means that if any code
// needs WebKit initialized in the utility process, they need to have
// another path to support single process mode.
webkit_platform_support_.reset(new WebKitPlatformSupportImpl);
WebKit::initialize(webkit_platform_support_.get());
}
GetContentClient()->utility()->UtilityThreadStarted();
}
bool UtilityThreadImpl::OnControlMessageReceived(const IPC::Message& msg) {
if (GetContentClient()->utility()->OnMessageReceived(msg))
return true;
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(UtilityThreadImpl, msg)
IPC_MESSAGE_HANDLER(UtilityMsg_BatchMode_Started, OnBatchModeStarted)
IPC_MESSAGE_HANDLER(UtilityMsg_BatchMode_Finished, OnBatchModeFinished)
#if defined(OS_POSIX)
IPC_MESSAGE_HANDLER(UtilityMsg_LoadPlugins, OnLoadPlugins)
#endif // OS_POSIX
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void UtilityThreadImpl::OnBatchModeStarted() {
batch_mode_ = true;
}
void UtilityThreadImpl::OnBatchModeFinished() {
ChildProcess::current()->ReleaseProcess();
}
#if defined(OS_POSIX)
void UtilityThreadImpl::OnLoadPlugins(
const std::vector<base::FilePath>& plugin_paths) {
PluginList* plugin_list = PluginList::Singleton();
// On Linux, some plugins expect the browser to have loaded glib/gtk. Do that
// before attempting to call into the plugin.
// g_thread_init API is deprecated since glib 2.31.0, please see release note:
// http://mail.gnome.org/archives/gnome-announce-list/2011-October/msg00041.html
#if defined(TOOLKIT_GTK)
#if !(GLIB_CHECK_VERSION(2, 31, 0))
if (!g_thread_get_initialized()) {
g_thread_init(NULL);
}
#endif
gfx::GtkInitFromCommandLine(*CommandLine::ForCurrentProcess());
#endif
std::vector<WebPluginInfo> plugins;
// TODO(bauerb): If we restart loading plug-ins, we might mess up the logic in
// PluginList::ShouldLoadPlugin due to missing the previously loaded plug-ins
// in |plugin_groups|.
for (size_t i = 0; i < plugin_paths.size(); ++i) {
WebPluginInfo plugin;
if (!plugin_list->LoadPluginIntoPluginList(
plugin_paths[i], &plugins, &plugin))
Send(new UtilityHostMsg_LoadPluginFailed(i, plugin_paths[i]));
else
Send(new UtilityHostMsg_LoadedPlugin(i, plugin));
}
ReleaseProcessIfNeeded();
}
#endif
} // namespace content
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