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      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/extension_information.h"
      6 
      7 #include "base/strings/string16.h"
      8 #include "base/strings/utf_string_conversions.h"
      9 #include "chrome/browser/browser_process.h"
     10 #include "chrome/browser/guest_view/guest_view_base.h"
     11 #include "chrome/browser/profiles/profile.h"
     12 #include "chrome/browser/profiles/profile_manager.h"
     13 #include "chrome/browser/task_manager/renderer_resource.h"
     14 #include "chrome/browser/task_manager/task_manager_util.h"
     15 #include "content/public/browser/render_frame_host.h"
     16 #include "content/public/browser/render_process_host.h"
     17 #include "content/public/browser/render_view_host.h"
     18 #include "content/public/browser/web_contents.h"
     19 #include "extensions/browser/extension_system.h"
     20 #include "extensions/browser/process_manager.h"
     21 #include "extensions/browser/view_type_utils.h"
     22 #include "extensions/common/extension.h"
     23 #include "grit/theme_resources.h"
     24 #include "ui/base/l10n/l10n_util.h"
     25 #include "ui/base/resource/resource_bundle.h"
     26 #include "ui/gfx/image/image_skia.h"
     27 
     28 using content::WebContents;
     29 using extensions::Extension;
     30 
     31 namespace {
     32 
     33 const Extension* GetExtensionForWebContents(WebContents* web_contents) {
     34   Profile* profile =
     35       Profile::FromBrowserContext(web_contents->GetBrowserContext());
     36   extensions::ProcessManager* process_manager =
     37       extensions::ExtensionSystem::Get(profile)->process_manager();
     38   return process_manager->GetExtensionForRenderViewHost(
     39       web_contents->GetRenderViewHost());
     40 }
     41 
     42 }  // namespace
     43 
     44 namespace task_manager {
     45 
     46 class ExtensionProcessResource : public RendererResource {
     47  public:
     48   explicit ExtensionProcessResource(const Extension* extension,
     49                                     content::RenderViewHost* render_view_host);
     50   virtual ~ExtensionProcessResource();
     51 
     52   // Resource methods:
     53   virtual base::string16 GetTitle() const OVERRIDE;
     54   virtual gfx::ImageSkia GetIcon() const OVERRIDE;
     55   virtual Type GetType() const OVERRIDE;
     56 
     57  private:
     58   // Returns true if the associated extension has a background page.
     59   bool IsBackground() const;
     60 
     61   // The icon painted for the extension process.
     62   static gfx::ImageSkia* default_icon_;
     63 
     64   // Cached data about the extension.
     65   base::string16 title_;
     66 
     67   DISALLOW_COPY_AND_ASSIGN(ExtensionProcessResource);
     68 };
     69 
     70 gfx::ImageSkia* ExtensionProcessResource::default_icon_ = NULL;
     71 
     72 ExtensionProcessResource::ExtensionProcessResource(
     73     const Extension* extension,
     74     content::RenderViewHost* render_view_host)
     75     : RendererResource(render_view_host->GetProcess()->GetHandle(),
     76                        render_view_host) {
     77   if (!default_icon_) {
     78     ResourceBundle& rb = ResourceBundle::GetSharedInstance();
     79     default_icon_ = rb.GetImageSkiaNamed(IDR_PLUGINS_FAVICON);
     80   }
     81   base::string16 extension_name = base::UTF8ToUTF16(extension->name());
     82   DCHECK(!extension_name.empty());
     83 
     84   Profile* profile = Profile::FromBrowserContext(
     85       render_view_host->GetProcess()->GetBrowserContext());
     86   int message_id = util::GetMessagePrefixID(extension->is_app(),
     87                                             true,  // is_extension
     88                                             profile->IsOffTheRecord(),
     89                                             false,  // is_prerender
     90                                             IsBackground());
     91   title_ = l10n_util::GetStringFUTF16(message_id, extension_name);
     92 }
     93 
     94 ExtensionProcessResource::~ExtensionProcessResource() {}
     95 
     96 base::string16 ExtensionProcessResource::GetTitle() const { return title_; }
     97 
     98 gfx::ImageSkia ExtensionProcessResource::GetIcon() const {
     99   return *default_icon_;
    100 }
    101 
    102 Resource::Type ExtensionProcessResource::GetType() const { return EXTENSION; }
    103 
    104 bool ExtensionProcessResource::IsBackground() const {
    105   WebContents* web_contents =
    106       WebContents::FromRenderViewHost(render_view_host());
    107   extensions::ViewType view_type = extensions::GetViewType(web_contents);
    108   return view_type == extensions::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE;
    109 }
    110 
    111 ////////////////////////////////////////////////////////////////////////////////
    112 // ExtensionInformation class
    113 ////////////////////////////////////////////////////////////////////////////////
    114 
    115 ExtensionInformation::ExtensionInformation() {}
    116 
    117 ExtensionInformation::~ExtensionInformation() {}
    118 
    119 void ExtensionInformation::GetAll(const NewWebContentsCallback& callback) {
    120   // Add all the existing extension views from all Profiles, including those
    121   // from incognito split mode.
    122   ProfileManager* profile_manager = g_browser_process->profile_manager();
    123   std::vector<Profile*> profiles(profile_manager->GetLoadedProfiles());
    124   size_t num_default_profiles = profiles.size();
    125   for (size_t i = 0; i < num_default_profiles; ++i) {
    126     if (profiles[i]->HasOffTheRecordProfile()) {
    127       profiles.push_back(profiles[i]->GetOffTheRecordProfile());
    128     }
    129   }
    130 
    131   for (size_t i = 0; i < profiles.size(); ++i) {
    132     extensions::ProcessManager* process_manager =
    133         extensions::ExtensionSystem::Get(profiles[i])->process_manager();
    134     if (process_manager) {
    135       const extensions::ProcessManager::ViewSet all_views =
    136           process_manager->GetAllViews();
    137       extensions::ProcessManager::ViewSet::const_iterator jt =
    138           all_views.begin();
    139       for (; jt != all_views.end(); ++jt) {
    140         WebContents* web_contents = WebContents::FromRenderViewHost(*jt);
    141         if (CheckOwnership(web_contents))
    142           callback.Run(web_contents);
    143       }
    144     }
    145   }
    146 }
    147 
    148 bool ExtensionInformation::CheckOwnership(WebContents* web_contents) {
    149   // Don't add WebContents that belong to a guest (those are handled by
    150   // GuestInformation). Otherwise they will be added twice.
    151   if (GuestViewBase::IsGuest(web_contents))
    152     return false;
    153 
    154   // Extension WebContents tracked by this class will always host extension
    155   // content.
    156   if (!GetExtensionForWebContents(web_contents))
    157     return false;
    158 
    159   extensions::ViewType view_type = extensions::GetViewType(web_contents);
    160 
    161   // Don't add tab contents (those are handled by TabContentsResourceProvider)
    162   // or background contents (handled by BackgroundInformation) or panels
    163   // (handled by PanelInformation)
    164   return (view_type != extensions::VIEW_TYPE_INVALID &&
    165           view_type != extensions::VIEW_TYPE_TAB_CONTENTS &&
    166           view_type != extensions::VIEW_TYPE_BACKGROUND_CONTENTS &&
    167           view_type != extensions::VIEW_TYPE_PANEL);
    168 }
    169 
    170 scoped_ptr<RendererResource> ExtensionInformation::MakeResource(
    171     WebContents* web_contents) {
    172   const Extension* extension = GetExtensionForWebContents(web_contents);
    173   if (!extension) {
    174     NOTREACHED();
    175     return scoped_ptr<RendererResource>();
    176   }
    177   return scoped_ptr<RendererResource>(new ExtensionProcessResource(
    178       extension, web_contents->GetRenderViewHost()));
    179 }
    180 
    181 }  // namespace task_manager
    182