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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 "base/base_paths.h"
#include "base/command_line.h"
#include "base/debug/crash_logging.h"
#include "base/debug/debugger.h"
#include "base/files/file_path.h"
#include "base/i18n/rtl.h"
#include "base/message_loop/message_loop.h"
#include "base/path_service.h"
#include "base/threading/platform_thread.h"
#include "build/build_config.h"
#include "content/child/child_process.h"
#include "content/common/content_constants_internal.h"
#include "content/common/sandbox_linux/sandbox_linux.h"
#include "content/ppapi_plugin/ppapi_thread.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/main_function_params.h"
#include "content/public/plugin/content_plugin_client.h"
#include "ipc/ipc_sender.h"
#include "ppapi/proxy/plugin_globals.h"
#include "ppapi/proxy/proxy_module.h"
#include "ui/base/ui_base_switches.h"
#if defined(OS_WIN)
#include "base/win/win_util.h"
#include "base/win/windows_version.h"
#include "content/child/dwrite_font_proxy/dwrite_font_proxy_init_win.h"
#include "content/common/font_warmup_win.h"
#include "content/public/common/dwrite_font_platform_win.h"
#include "sandbox/win/src/sandbox.h"
#include "third_party/WebKit/public/web/win/WebFontRendering.h"
#include "third_party/skia/include/ports/SkTypeface_win.h"
#include "ui/gfx/win/direct_write.h"
#include "ui/gfx/win/dpi.h"
#endif
#if defined(OS_CHROMEOS)
#include "base/files/file_util.h"
#endif
#if defined(OS_LINUX)
#include "content/public/common/sandbox_init.h"
#endif
#if defined(OS_POSIX) && !defined(OS_ANDROID)
#include <stdlib.h>
#endif
#if defined(OS_WIN)
sandbox::TargetServices* g_target_services = NULL;
#else
void* g_target_services = 0;
#endif
namespace content {
namespace {
#if defined(OS_WIN)
// Windows-only skia sandbox support
void SkiaPreCacheFont(const LOGFONT& logfont) {
ppapi::proxy::PluginGlobals::Get()->PreCacheFontForFlash(
reinterpret_cast<const void*>(&logfont));
}
#endif
} // namespace
// Main function for starting the PPAPI plugin process.
int PpapiPluginMain(const MainFunctionParams& parameters) {
const base::CommandLine& command_line = parameters.command_line;
#if defined(OS_WIN)
g_target_services = parameters.sandbox_info->target_services;
#endif
// If |g_target_services| is not null this process is sandboxed. One side
// effect is that we can't pop dialogs like ChildProcess::WaitForDebugger()
// does.
if (command_line.HasSwitch(switches::kPpapiStartupDialog)) {
if (g_target_services)
base::debug::WaitForDebugger(2*60, false);
else
ChildProcess::WaitForDebugger("Ppapi");
}
// Set the default locale to be the current UI language. WebKit uses ICU's
// default locale for some font settings (especially switching between
// Japanese and Chinese fonts for the same characters).
if (command_line.HasSwitch(switches::kLang)) {
std::string locale = command_line.GetSwitchValueASCII(switches::kLang);
base::i18n::SetICUDefaultLocale(locale);
#if defined(OS_POSIX) && !defined(OS_ANDROID)
// TODO(shess): Flash appears to have a POSIX locale dependency
// outside of the existing PPAPI ICU support. Certain games hang
// while loading, and it seems related to datetime formatting.
// http://crbug.com/155396
// http://crbug.com/155671
//
// ICU can accept "en-US" or "en_US", but POSIX wants "en_US".
std::replace(locale.begin(), locale.end(), '-', '_');
locale.append(".UTF-8");
setlocale(LC_ALL, locale.c_str());
setenv("LANG", locale.c_str(), 0);
#endif
}
#if defined(OS_CHROMEOS)
// Specifies $HOME explicitly because some plugins rely on $HOME but
// no other part of Chrome OS uses that. See crbug.com/335290.
base::FilePath homedir;
PathService::Get(base::DIR_HOME, &homedir);
setenv("HOME", homedir.value().c_str(), 1);
#endif
base::MessageLoop main_message_loop;
base::PlatformThread::SetName("CrPPAPIMain");
base::trace_event::TraceLog::GetInstance()->SetProcessName("PPAPI Process");
base::trace_event::TraceLog::GetInstance()->SetProcessSortIndex(
kTraceEventPpapiProcessSortIndex);
// Allow the embedder to perform any necessary per-process initialization
// before the sandbox is initialized.
if (GetContentClient()->plugin())
GetContentClient()->plugin()->PreSandboxInitialization();
#if defined(OS_LINUX)
LinuxSandbox::InitializeSandbox();
#endif
ChildProcess ppapi_process;
ppapi_process.set_main_thread(
new PpapiThread(parameters.command_line, false)); // Not a broker.
#if defined(OS_WIN)
if (!base::win::IsUser32AndGdi32Available())
gfx::win::MaybeInitializeDirectWrite();
bool use_direct_write = gfx::win::IsDirectWriteEnabled();
if (use_direct_write) {
if (ShouldUseDirectWriteFontProxyFieldTrial()) {
InitializeDWriteFontProxy(
base::Bind(&ppapi::proxy::PluginGlobals::GetBrowserSender,
base::Unretained(ppapi::proxy::PluginGlobals::Get())));
} else {
WarmupDirectWrite();
}
} else {
SkTypeface_SetEnsureLOGFONTAccessibleProc(SkiaPreCacheFont);
}
blink::WebFontRendering::setUseDirectWrite(use_direct_write);
blink::WebFontRendering::setDeviceScaleFactor(gfx::GetDPIScale());
#endif
main_message_loop.Run();
#if defined(OS_WIN)
if (ShouldUseDirectWriteFontProxyFieldTrial())
UninitializeDWriteFontProxy();
#endif
return 0;
}
} // namespace content
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