chrome/browser/task_manager/guest_information.cc

   1 // Copyright 2014 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/browser/task_manager/guest_information.h"
   6
   7 #include "base/strings/string16.h"
   8 #include "chrome/browser/chrome_notification_types.h"
   9 #include "chrome/browser/favicon/favicon_tab_helper.h"
  10 #include "chrome/browser/profiles/profile.h"
  11 #include "chrome/browser/task_manager/renderer_resource.h"
  12 #include "chrome/browser/task_manager/resource_provider.h"
  13 #include "chrome/browser/task_manager/task_manager.h"
  14 #include "chrome/browser/task_manager/task_manager_util.h"
  15 #include "chrome/grit/generated_resources.h"
  16 #include "content/public/browser/notification_service.h"
  17 #include "content/public/browser/render_frame_host.h"
  18 #include "content/public/browser/render_process_host.h"
  19 #include "content/public/browser/render_view_host.h"
  20 #include "content/public/browser/render_widget_host_iterator.h"
  21 #include "content/public/browser/site_instance.h"
  22 #include "content/public/browser/web_contents.h"
  23 #include "extensions/browser/guest_view/guest_view_base.h"
  24 #include "extensions/strings/grit/extensions_strings.h"
  25 #include "ui/base/l10n/l10n_util.h"
  26 #include "ui/gfx/image/image.h"
  27 #include "ui/gfx/image/image_skia.h"
  28
  29 using content::RenderProcessHost;
  30 using content::RenderViewHost;
  31 using content::RenderWidgetHost;
  32 using content::WebContents;
  33 using extensions::Extension;
  34
  35 namespace task_manager {
  36
  37 class GuestResource : public RendererResource {
  38  public:
  39   explicit GuestResource(content::RenderViewHost* render_view_host);
  40   ~GuestResource() override;
  41
  42   // Resource methods:
  43   Type GetType() const override;
  44   base::string16 GetTitle() const override;
  45   gfx::ImageSkia GetIcon() const override;
  46   content::WebContents* GetWebContents() const override;
  47
  48  private:
  49   DISALLOW_COPY_AND_ASSIGN(GuestResource);
  50 };
  51
  52 GuestResource::GuestResource(RenderViewHost* render_view_host)
  53     : RendererResource(
  54           render_view_host->GetSiteInstance()->GetProcess()->GetHandle(),
  55           render_view_host) {
  56 }
  57
  58 GuestResource::~GuestResource() {
  59 }
  60
  61 Resource::Type GuestResource::GetType() const {
  62   return GUEST;
  63 }
  64
  65 base::string16 GuestResource::GetTitle() const {
  66   WebContents* web_contents = GetWebContents();
  67   if (!web_contents) {
  68     const int message_id = IDS_EXTENSION_TASK_MANAGER_WEBVIEW_TAG_PREFIX;
  69     return l10n_util::GetStringFUTF16(message_id, base::string16());
  70   }
  71   extensions::GuestViewBase* guest =
  72       extensions::GuestViewBase::FromWebContents(web_contents);
  73   return l10n_util::GetStringFUTF16(
  74       guest->GetTaskPrefix(),
  75       util::GetTitleFromWebContents(web_contents));
  76 }
  77
  78 gfx::ImageSkia GuestResource::GetIcon() const {
  79   WebContents* web_contents = GetWebContents();
  80   if (web_contents && FaviconTabHelper::FromWebContents(web_contents)) {
  81     return FaviconTabHelper::FromWebContents(web_contents)->
  82         GetFavicon().AsImageSkia();
  83   }
  84   return gfx::ImageSkia();
  85 }
  86
  87 WebContents* GuestResource::GetWebContents() const {
  88   return WebContents::FromRenderViewHost(render_view_host());
  89 }
  90
  91 ////////////////////////////////////////////////////////////////////////////////
  92 // GuestInformation class
  93 ////////////////////////////////////////////////////////////////////////////////
  94
  95 GuestInformation::GuestInformation() {}
  96
  97 GuestInformation::~GuestInformation() {}
  98
  99 bool GuestInformation::CheckOwnership(WebContents* web_contents) {
 100   // Guest WebContentses are created and owned internally by the content layer.
 101   return extensions::GuestViewBase::IsGuest(web_contents);
 102 }
 103
 104 void GuestInformation::GetAll(const NewWebContentsCallback& callback) {
 105   scoped_ptr<content::RenderWidgetHostIterator> widgets(
 106       content::RenderWidgetHost::GetRenderWidgetHosts());
 107   while (content::RenderWidgetHost* widget = widgets->GetNextHost()) {
 108     if (widget->IsRenderView()) {
 109       content::RenderViewHost* rvh = content::RenderViewHost::From(widget);
 110       WebContents* web_contents = WebContents::FromRenderViewHost(rvh);
 111       if (web_contents && extensions::GuestViewBase::IsGuest(web_contents))
 112         callback.Run(web_contents);
 113     }
 114   }
 115 }
 116
 117 scoped_ptr<RendererResource> GuestInformation::MakeResource(
 118     WebContents* web_contents) {
 119   return scoped_ptr<RendererResource>(
 120       new GuestResource(web_contents->GetRenderViewHost()));
 121 }
 122
 123 }  // namespace task_manager