android_webview/common/aw_content_client.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/common/aw_content_client.h"
   6
   7 #include "base/basictypes.h"
   8 #include "base/command_line.h"
   9 #include "content/public/common/content_switches.h"
  10 #include "content/public/common/user_agent.h"
  11 #include "ipc/ipc_message.h"
  12 #include "ui/base/l10n/l10n_util.h"
  13 #include "ui/base/resource/resource_bundle.h"
  14
  15 namespace {
  16
  17 std::string GetProduct() {
  18   // "Chrome/XX.0.0.0" identifies that this WebView is derived from the
  19   // corresponding Chromium version XX.
  20   // TODO(torne): Use chrome/VERSION file. See http://crbug.com/297522
  21   return "Chrome/38.0.0.0";
  22 }
  23
  24 }
  25
  26 namespace android_webview {
  27
  28 std::string GetUserAgent() {
  29   // "Version/4.0" had been hardcoded in the legacy WebView.
  30   std::string product = "Version/4.0 " + GetProduct();
  31   if (CommandLine::ForCurrentProcess()->HasSwitch(
  32         switches::kUseMobileUserAgent)) {
  33     product += " Mobile";
  34   }
  35   return content::BuildUserAgentFromProduct(product);
  36 }
  37
  38 std::string AwContentClient::GetProduct() const {
  39   return ::GetProduct();
  40 }
  41
  42 std::string AwContentClient::GetUserAgent() const {
  43   return android_webview::GetUserAgent();
  44 }
  45
  46 base::string16 AwContentClient::GetLocalizedString(int message_id) const {
  47   // TODO(boliu): Used only by WebKit, so only bundle those resources for
  48   // Android WebView.
  49   return l10n_util::GetStringUTF16(message_id);
  50 }
  51
  52 base::StringPiece AwContentClient::GetDataResource(
  53     int resource_id,
  54     ui::ScaleFactor scale_factor) const {
  55   // TODO(boliu): Used only by WebKit, so only bundle those resources for
  56   // Android WebView.
  57   return ResourceBundle::GetSharedInstance().GetRawDataResourceForScale(
  58       resource_id, scale_factor);
  59 }
  60
  61 bool AwContentClient::CanSendWhileSwappedOut(const IPC::Message* message) {
  62   // For legacy API support we perform a few browser -> renderer synchronous IPC
  63   // messages that block the browser. However, the synchronous IPC replies might
  64   // be dropped by the renderer during a swap out, deadlocking the browser.
  65   // Because of this we should never drop any synchronous IPC replies.
  66   return message->type() == IPC_REPLY_ID;
  67 }
  68
  69 }  // namespace android_webview