chrome/renderer/plugins/shadow_dom_plugin_placeholder.cc

   1 // Copyright 2013 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 "chrome/renderer/plugins/shadow_dom_plugin_placeholder.h"
   6
   7 #include "base/command_line.h"
   8 #include "chrome/common/chrome_switches.h"
   9 #include "chrome/common/render_messages.h"
  10 #include "chrome/grit/generated_resources.h"
  11 #include "chrome/renderer/plugins/plugin_uma.h"
  12 #include "content/public/renderer/render_frame.h"
  13 #include "third_party/WebKit/public/web/WebDocument.h"
  14 #include "third_party/WebKit/public/web/WebLocalFrame.h"
  15 #include "third_party/WebKit/public/web/WebPluginParams.h"
  16 #include "ui/base/l10n/l10n_util.h"
  17
  18 namespace {
  19
  20 class MissingPluginPlaceholder : public blink::WebPluginPlaceholder {
  21  public:
  22   // blink::WebPluginPlaceholder overrides
  23   blink::WebString message() const override {
  24     // TODO(jbroman): IDS_PLUGIN_SEARCHING if ENABLE_PLUGIN_INSTALLATION
  25     return l10n_util::GetStringUTF16(IDS_PLUGIN_NOT_SUPPORTED);
  26   }
  27 };
  28
  29 }  // namespace
  30
  31 bool ShadowDOMPluginPlaceholderEnabled() {
  32   return base::CommandLine::ForCurrentProcess()->HasSwitch(
  33       switches::kEnablePluginPlaceholderShadowDom);
  34 }
  35
  36 scoped_ptr<blink::WebPluginPlaceholder> CreateShadowDOMPlaceholderForPluginInfo(
  37     content::RenderFrame* render_frame,
  38     blink::WebLocalFrame* frame,
  39     const blink::WebPluginParams& orig_params) {
  40   using Status = ChromeViewHostMsg_GetPluginInfo_Status;
  41
  42   if (!ShadowDOMPluginPlaceholderEnabled())
  43     return nullptr;
  44
  45   std::string orig_mime_type = orig_params.mimeType.utf8();
  46   // TODO(jbroman): Investigate whether browser plugin needs special handling.
  47   ChromeViewHostMsg_GetPluginInfo_Output output;
  48 #if defined(ENABLE_PLUGINS)
  49   render_frame->Send(
  50       new ChromeViewHostMsg_GetPluginInfo(render_frame->GetRoutingID(),
  51                                           GURL(orig_params.url),
  52                                           frame->top()->document().url(),
  53                                           orig_mime_type,
  54                                           &output));
  55 #else
  56   output.status.value = Status::kNotFound;
  57 #endif
  58
  59   if (output.status.value == Status::kNotFound) {
  60     // TODO(jbroman): Handle YouTube specially here, as in
  61     // ChromeContentRendererClient::CreatePlugin.
  62     PluginUMAReporter::GetInstance()->ReportPluginMissing(orig_mime_type,
  63                                                           orig_params.url);
  64     return CreateShadowDOMPlaceholderForMissingPlugin();
  65   }
  66
  67   return nullptr;
  68 }
  69
  70 scoped_ptr<blink::WebPluginPlaceholder>
  71 CreateShadowDOMPlaceholderForMissingPlugin() {
  72   return make_scoped_ptr(new MissingPluginPlaceholder);
  73 }