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_dev_tools_discovery_provider.h"
   9 #include "android_webview/browser/aw_media_client_android.h"
  10 #include "android_webview/browser/aw_result_codes.h"
  11 #include "android_webview/browser/deferred_gpu_command_service.h"
  12 #include "android_webview/common/aw_resource.h"
  13 #include "android_webview/common/aw_switches.h"
  14 #include "base/android/apk_assets.h"
  15 #include "base/android/build_info.h"
  16 #include "base/android/locale_utils.h"
  17 #include "base/android/memory_pressure_listener_android.h"
  18 #include "base/command_line.h"
  19 #include "base/files/file_path.h"
  20 #include "base/path_service.h"
  21 #include "content/public/browser/android/synchronous_compositor.h"
  22 #include "content/public/browser/render_frame_host.h"
  23 #include "content/public/browser/render_process_host.h"
  24 #include "content/public/common/content_client.h"
  25 #include "content/public/common/content_switches.h"
  26 #include "content/public/common/result_codes.h"
  27 #include "content/public/common/url_utils.h"
  28 #include "media/base/android/media_client_android.h"
  29 #include "net/android/network_change_notifier_factory_android.h"
  30 #include "net/base/network_change_notifier.h"
  31 #include "ui/base/l10n/l10n_util.h"
  32 #include "ui/base/layout.h"
  33 #include "ui/base/resource/resource_bundle.h"
  34 #include "ui/base/resource/resource_bundle_android.h"
  35 #include "ui/base/ui_base_paths.h"
  36 #include "ui/gl/gl_surface.h"
  37
  38 namespace android_webview {
  39
  40 AwBrowserMainParts::AwBrowserMainParts(AwBrowserContext* browser_context)
  41     : browser_context_(browser_context) {
  42 }
  43
  44 AwBrowserMainParts::~AwBrowserMainParts() {
  45 }
  46
  47 void AwBrowserMainParts::PreEarlyInitialization() {
  48   net::NetworkChangeNotifier::SetFactory(
  49       new net::NetworkChangeNotifierFactoryAndroid());
  50
  51   // Android WebView does not use default MessageLoop. It has its own
  52   // Android specific MessageLoop. Also see MainMessageLoopRun.
  53   DCHECK(!main_message_loop_.get());
  54   main_message_loop_.reset(new base::MessageLoopForUI);
  55   base::MessageLoopForUI::current()->Start();
  56 }
  57
  58 int AwBrowserMainParts::PreCreateThreads() {
  59   base::MemoryMappedFile::Region pak_region =
  60       base::MemoryMappedFile::Region::kWholeFile;
  61
  62   // TODO(primiano, mkosiba): GetApplicationLocale requires a ResourceBundle
  63   // instance to be present to work correctly so we call this (knowing it will
  64   // fail) just to create the ResourceBundle instance. We should refactor
  65   // ResourceBundle/GetApplicationLocale to not require an instance to be
  66   // initialized.
  67   ui::SetLocalePaksStoredInApk(true);
  68   ui::ResourceBundle::InitSharedInstanceWithLocale(
  69       base::android::GetDefaultLocale(),
  70       NULL,
  71       ui::ResourceBundle::DO_NOT_LOAD_COMMON_RESOURCES);
  72   std::string locale = l10n_util::GetApplicationLocale(std::string());
  73   std::string pak_path = ui::GetPathForAndroidLocalePakWithinApk(locale);
  74   int pak_fd = base::android::OpenApkAsset(pak_path, &pak_region);
  75   if (pak_fd != -1) {
  76     ui::ResourceBundle::CleanupSharedInstance();
  77     ui::ResourceBundle::InitSharedInstanceWithPakFileRegion(
  78         base::File(pak_fd), pak_region);
  79   } else {
  80     LOG(WARNING) << "Failed to load " << locale << ".pak from the apk. "
  81                     "Bringing up WebView without any locale";
  82   }
  83
  84   // Try to directly mmap the webviewchromium.pak from the apk. Fall back to
  85   // load from file, using PATH_SERVICE, otherwise.
  86   pak_fd = base::android::OpenApkAsset("assets/webviewchromium.pak",
  87                                        &pak_region);
  88   if (pak_fd != -1) {
  89     ui::ResourceBundle::GetSharedInstance().AddDataPackFromFileRegion(
  90         base::File(pak_fd), pak_region, ui::SCALE_FACTOR_NONE);
  91   } else {
  92     base::FilePath pak_path;
  93     PathService::Get(ui::DIR_RESOURCE_PAKS_ANDROID, &pak_path);
  94     LOG(WARNING) << "Cannot load webviewchromium.pak assets from the apk. "
  95                     "Falling back loading it from " << pak_path.MaybeAsASCII();
  96     ui::ResourceBundle::GetSharedInstance().AddDataPackFromPath(
  97         pak_path.AppendASCII("webviewchromium.pak"), ui::SCALE_FACTOR_NONE);
  98   }
  99
 100   base::android::MemoryPressureListenerAndroid::RegisterSystemCallback(
 101       base::android::AttachCurrentThread());
 102   DeferredGpuCommandService::SetInstance();
 103
 104   return content::RESULT_CODE_NORMAL_EXIT;
 105 }
 106
 107 void AwBrowserMainParts::PreMainMessageLoopRun() {
 108   browser_context_->PreMainMessageLoopRun();
 109
 110   AwDevToolsDiscoveryProvider::Install();
 111
 112   media::SetMediaClientAndroid(
 113       new AwMediaClientAndroid(AwResource::GetConfigKeySystemUuidMapping()));
 114
 115   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
 116           switches::kUseIpcCommandBuffer)) {
 117     content::SynchronousCompositor::SetUseIpcCommandBuffer();
 118   } else {
 119     gfx::GLSurface::InitializeOneOff();
 120   }
 121
 122   content::RenderFrameHost::AllowInjectingJavaScriptForAndroidWebView();
 123
 124   // This is needed for WebView Classic backwards compatibility
 125   // See crbug.com/298495
 126   content::SetMaxURLChars(20 * 1024 * 1024);
 127 }
 128
 129 bool AwBrowserMainParts::MainMessageLoopRun(int* result_code) {
 130   // Android WebView does not use default MessageLoop. It has its own
 131   // Android specific MessageLoop.
 132   return true;
 133 }
 134
 135 }  // namespace android_webview