blob: 2abc6c2ccac6c907c87d87acc024a5c9c1cd031f [file] [log] [blame]
// 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 "android_webview/browser/aw_browser_main_parts.h"
#include "android_webview/browser/aw_browser_context.h"
#include "android_webview/browser/aw_result_codes.h"
#include "android_webview/native/aw_assets.h"
#include "base/android/build_info.h"
#include "base/android/memory_pressure_listener_android.h"
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/path_service.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/result_codes.h"
#include "content/public/common/url_utils.h"
#include "gpu/command_buffer/service/mailbox_synchronizer.h"
#include "net/android/network_change_notifier_factory_android.h"
#include "net/base/network_change_notifier.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/l10n/l10n_util_android.h"
#include "ui/base/layout.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/base/ui_base_paths.h"
namespace android_webview {
AwBrowserMainParts::AwBrowserMainParts(AwBrowserContext* browser_context)
: browser_context_(browser_context) {
AwBrowserMainParts::~AwBrowserMainParts() {
void AwBrowserMainParts::PreEarlyInitialization() {
new net::NetworkChangeNotifierFactoryAndroid());
// Android WebView does not use default MessageLoop. It has its own
// Android specific MessageLoop. Also see MainMessageLoopRun.
main_message_loop_.reset(new base::MessageLoopForUI);
int AwBrowserMainParts::PreCreateThreads() {
int pak_fd = 0;
int64 pak_off = 0;
int64 pak_len = 0;
// TODO(primiano): at present state there is a cyclic logic dependency
// between l10n_util::GetApplicationLocale and our code here. l10n_util
// decides which locale to ultimately use by scanning the pak files in the
// data folder. What we ultimately want to achieve is knowing the pak file to
// load from the apk beforehand, without looking at the data folder at all.
// Fixing this cyclic dependency involves some refactoring in ResourceBundle
// and l10n_util.
// In the meanwhile we use the mmap path only as a fallback (i.e. we check
// first for the existence of the pak files in the data dir). In the immediate
// future this order should be reversed, and we should look in the data
// directory only if we failed to mmap the pak file from the apk.
bool did_init_from_file = !ui::ResourceBundle::InitSharedInstanceLocaleOnly(
l10n_util::GetDefaultLocale(), NULL).empty();
if (!did_init_from_file) {
LOG(WARNING) << "Failed to load the locale pak from PATH_SERVICE. "
" Trying to mmap en-US.pak from the apk";
if (AwAssets::OpenAsset("en-US.pak", &pak_fd, &pak_off, &pak_len)) {
VLOG(0) << "Load from apk succesful, fd=" << pak_fd << " off=" << pak_off
<< " len=" << pak_len;
base::MemoryMappedFile::Region(pak_off, pak_len),
} else {
LOG(WARNING) << "Failed to load en-US.pak from the apk too. "
"Bringing up WebView without any locale";
// Try to directly mmap the webviewchromium.pak from the apk. Fall back to
// load from file, using PATH_SERVICE, otherwise.
if (AwAssets::OpenAsset("webviewchromium.pak", &pak_fd, &pak_off, &pak_len)) {
VLOG(0) << "Loading webviewchromium.pak from, fd:" << pak_fd
<< " off:" << pak_off << " len:" << pak_len;
base::MemoryMappedFile::Region(pak_off, pak_len),
} else {
base::FilePath pak_path;
PathService::Get(ui::DIR_RESOURCE_PAKS_ANDROID, &pak_path);
LOG(WARNING) << "Cannot load webviewchromium.pak assets from the apk. "
"Falling back loading it from " << pak_path.MaybeAsASCII();
pak_path.AppendASCII("webviewchromium.pak"), ui::SCALE_FACTOR_NONE);
return content::RESULT_CODE_NORMAL_EXIT;
void AwBrowserMainParts::PreMainMessageLoopRun() {
// TODO(boliu): Can't support accelerated 2d canvas and WebGL with ubercomp
// yet:
if (!gpu::gles2::MailboxSynchronizer::Initialize()) {
CommandLine* cl = CommandLine::ForCurrentProcess();
// This is needed for WebView Classic backwards compatibility
// See
content::SetMaxURLChars(20 * 1024 * 1024);
bool AwBrowserMainParts::MainMessageLoopRun(int* result_code) {
// Android WebView does not use default MessageLoop. It has its own
// Android specific MessageLoop.
return true;
} // namespace android_webview