android_webview/browser/aw_browser_main_parts.cc

   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.
   4
   5 #include "android_webview/browser/aw_browser_main_parts.h"
   6
   7 #include "android_webview/browser/aw_browser_context.h"
   8 #include "android_webview/browser/aw_result_codes.h"
   9 #include "base/android/build_info.h"
  10 #include "base/android/memory_pressure_listener_android.h"
  11 #include "base/files/file_path.h"
  12 #include "base/path_service.h"
  13 #include "content/public/browser/render_process_host.h"
  14 #include "content/public/common/content_client.h"
  15 #include "content/public/common/result_codes.h"
  16 #include "content/public/common/url_utils.h"
  17 #include "net/android/network_change_notifier_factory_android.h"
  18 #include "net/base/network_change_notifier.h"
  19 #include "ui/base/l10n/l10n_util_android.h"
  20 #include "ui/base/layout.h"
  21 #include "ui/base/resource/resource_bundle.h"
  22 #include "ui/base/ui_base_paths.h"
  23
  24 namespace android_webview {
  25
  26 AwBrowserMainParts::AwBrowserMainParts(AwBrowserContext* browser_context)
  27     : browser_context_(browser_context) {
  28 }
  29
  30 AwBrowserMainParts::~AwBrowserMainParts() {
  31 }
  32
  33 void AwBrowserMainParts::PreEarlyInitialization() {
  34   net::NetworkChangeNotifier::SetFactory(
  35       new net::NetworkChangeNotifierFactoryAndroid());
  36
  37   // Android WebView does not use default MessageLoop. It has its own
  38   // Android specific MessageLoop. Also see MainMessageLoopRun.
  39   DCHECK(!main_message_loop_.get());
  40   main_message_loop_.reset(new base::MessageLoopForUI);
  41   base::MessageLoopForUI::current()->Start();
  42 }
  43
  44 int AwBrowserMainParts::PreCreateThreads() {
  45   ui::ResourceBundle::InitSharedInstanceLocaleOnly(
  46       l10n_util::GetDefaultLocale(), NULL);
  47
  48   base::FilePath pak_path;
  49   PathService::Get(ui::DIR_RESOURCE_PAKS_ANDROID, &pak_path);
  50
  51   ui::ResourceBundle::GetSharedInstance().AddDataPackFromPath(
  52       pak_path.AppendASCII("webviewchromium.pak"),
  53       ui::SCALE_FACTOR_NONE);
  54
  55   base::android::MemoryPressureListenerAndroid::RegisterSystemCallback(
  56       base::android::AttachCurrentThread());
  57
  58   return content::RESULT_CODE_NORMAL_EXIT;
  59 }
  60
  61 void AwBrowserMainParts::PreMainMessageLoopRun() {
  62   browser_context_->PreMainMessageLoopRun();
  63   // This is needed for WebView Classic backwards compatibility
  64   // See crbug.com/298495
  65   content::SetMaxURLChars(20 * 1024 * 1024);
  66 }
  67
  68 bool AwBrowserMainParts::MainMessageLoopRun(int* result_code) {
  69   // Android WebView does not use default MessageLoop. It has its own
  70   // Android specific MessageLoop.
  71   return true;
  72 }
  73
  74 }  // namespace android_webview