extensions/browser/guest_view/extension_options/extension_options_guest.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 "extensions/browser/guest_view/extension_options/extension_options_guest.h"
   6
   7 #include "base/values.h"
   8 #include "components/crx_file/id_util.h"
   9 #include "components/guest_view/browser/guest_view_event.h"
  10 #include "components/guest_view/browser/guest_view_manager.h"
  11 #include "content/public/browser/navigation_details.h"
  12 #include "content/public/browser/render_process_host.h"
  13 #include "content/public/browser/site_instance.h"
  14 #include "content/public/browser/web_contents.h"
  15 #include "content/public/common/result_codes.h"
  16 #include "extensions/browser/api/extensions_api_client.h"
  17 #include "extensions/browser/bad_message.h"
  18 #include "extensions/browser/extension_function_dispatcher.h"
  19 #include "extensions/browser/extension_registry.h"
  20 #include "extensions/browser/guest_view/extension_options/extension_options_constants.h"
  21 #include "extensions/browser/guest_view/extension_options/extension_options_guest_delegate.h"
  22 #include "extensions/common/api/extension_options_internal.h"
  23 #include "extensions/common/constants.h"
  24 #include "extensions/common/extension.h"
  25 #include "extensions/common/extension_messages.h"
  26 #include "extensions/common/manifest_handlers/options_page_info.h"
  27 #include "extensions/common/permissions/permissions_data.h"
  28 #include "extensions/strings/grit/extensions_strings.h"
  29 #include "ipc/ipc_message_macros.h"
  30
  31 using content::WebContents;
  32 using guest_view::GuestViewBase;
  33 using guest_view::GuestViewEvent;
  34 using namespace extensions::api;
  35
  36 namespace extensions {
  37
  38 // static
  39 const char ExtensionOptionsGuest::Type[] = "extensionoptions";
  40
  41 ExtensionOptionsGuest::ExtensionOptionsGuest(
  42     content::WebContents* owner_web_contents)
  43     : GuestView<ExtensionOptionsGuest>(owner_web_contents),
  44       extension_options_guest_delegate_(
  45           extensions::ExtensionsAPIClient::Get()
  46               ->CreateExtensionOptionsGuestDelegate(this)) {
  47 }
  48
  49 ExtensionOptionsGuest::~ExtensionOptionsGuest() {
  50 }
  51
  52 // static
  53 GuestViewBase* ExtensionOptionsGuest::Create(
  54     content::WebContents* owner_web_contents) {
  55   return new ExtensionOptionsGuest(owner_web_contents);
  56 }
  57
  58 bool ExtensionOptionsGuest::CanRunInDetachedState() const {
  59   return true;
  60 }
  61
  62 void ExtensionOptionsGuest::CreateWebContents(
  63     const base::DictionaryValue& create_params,
  64     const WebContentsCreatedCallback& callback) {
  65   // Get the extension's base URL.
  66   std::string extension_id;
  67   create_params.GetString(extensionoptions::kExtensionId, &extension_id);
  68
  69   if (!crx_file::id_util::IdIsValid(extension_id)) {
  70     callback.Run(nullptr);
  71     return;
  72   }
  73
  74   std::string embedder_extension_id = GetOwnerSiteURL().host();
  75   if (crx_file::id_util::IdIsValid(embedder_extension_id) &&
  76       extension_id != embedder_extension_id) {
  77     // Extensions cannot embed other extensions' options pages.
  78     callback.Run(nullptr);
  79     return;
  80   }
  81
  82   GURL extension_url =
  83       extensions::Extension::GetBaseURLFromExtensionId(extension_id);
  84   if (!extension_url.is_valid()) {
  85     callback.Run(nullptr);
  86     return;
  87   }
  88
  89   // Get the options page URL for later use.
  90   extensions::ExtensionRegistry* registry =
  91       extensions::ExtensionRegistry::Get(browser_context());
  92   const extensions::Extension* extension =
  93       registry->enabled_extensions().GetByID(extension_id);
  94   if (!extension) {
  95     // The ID was valid but the extension didn't exist. Typically this will
  96     // happen when an extension is disabled.
  97     callback.Run(nullptr);
  98     return;
  99   }
 100
 101   options_page_ = extensions::OptionsPageInfo::GetOptionsPage(extension);
 102   if (!options_page_.is_valid()) {
 103     callback.Run(nullptr);
 104     return;
 105   }
 106
 107   // Create a WebContents using the extension URL. The options page's
 108   // WebContents should live in the same process as its parent extension's
 109   // WebContents, so we can use |extension_url| for creating the SiteInstance.
 110   content::SiteInstance* options_site_instance =
 111       content::SiteInstance::CreateForURL(browser_context(), extension_url);
 112   WebContents::CreateParams params(browser_context(), options_site_instance);
 113   params.guest_delegate = this;
 114   callback.Run(WebContents::Create(params));
 115 }
 116
 117 void ExtensionOptionsGuest::DidInitialize(
 118     const base::DictionaryValue& create_params) {
 119   ExtensionsAPIClient::Get()->AttachWebContentsHelpers(web_contents());
 120   web_contents()->GetController().LoadURL(options_page_,
 121                                           content::Referrer(),
 122                                           ui::PAGE_TRANSITION_LINK,
 123                                           std::string());
 124 }
 125
 126 void ExtensionOptionsGuest::GuestViewDidStopLoading() {
 127   scoped_ptr<base::DictionaryValue> args(new base::DictionaryValue());
 128   DispatchEventToView(new GuestViewEvent(
 129       extension_options_internal::OnLoad::kEventName, args.Pass()));
 130 }
 131
 132 const char* ExtensionOptionsGuest::GetAPINamespace() const {
 133   return extensionoptions::kAPINamespace;
 134 }
 135
 136 int ExtensionOptionsGuest::GetTaskPrefix() const {
 137   return IDS_EXTENSION_TASK_MANAGER_EXTENSIONOPTIONS_TAG_PREFIX;
 138 }
 139
 140 bool ExtensionOptionsGuest::IsPreferredSizeModeEnabled() const {
 141   return true;
 142 }
 143
 144 void ExtensionOptionsGuest::OnPreferredSizeChanged(const gfx::Size& pref_size) {
 145   extension_options_internal::PreferredSizeChangedOptions options;
 146   // Convert the size from physical pixels to logical pixels.
 147   options.width = PhysicalPixelsToLogicalPixels(pref_size.width());
 148   options.height = PhysicalPixelsToLogicalPixels(pref_size.height());
 149   DispatchEventToView(new GuestViewEvent(
 150       extension_options_internal::OnPreferredSizeChanged::kEventName,
 151       options.ToValue()));
 152 }
 153
 154 bool ExtensionOptionsGuest::ShouldHandleFindRequestsForEmbedder() const {
 155   return true;
 156 }
 157
 158 content::WebContents* ExtensionOptionsGuest::OpenURLFromTab(
 159     content::WebContents* source,
 160     const content::OpenURLParams& params) {
 161   if (!extension_options_guest_delegate_)
 162     return nullptr;
 163
 164   // Don't allow external URLs with the CURRENT_TAB disposition be opened in
 165   // this guest view, change the disposition to NEW_FOREGROUND_TAB.
 166   if ((!params.url.SchemeIs(extensions::kExtensionScheme) ||
 167        params.url.host() != options_page_.host()) &&
 168       params.disposition == CURRENT_TAB) {
 169     return extension_options_guest_delegate_->OpenURLInNewTab(
 170         content::OpenURLParams(params.url,
 171                                params.referrer,
 172                                params.frame_tree_node_id,
 173                                NEW_FOREGROUND_TAB,
 174                                params.transition,
 175                                params.is_renderer_initiated));
 176   }
 177   return extension_options_guest_delegate_->OpenURLInNewTab(params);
 178 }
 179
 180 void ExtensionOptionsGuest::CloseContents(content::WebContents* source) {
 181   DispatchEventToView(
 182       new GuestViewEvent(extension_options_internal::OnClose::kEventName,
 183                          make_scoped_ptr(new base::DictionaryValue())));
 184 }
 185
 186 bool ExtensionOptionsGuest::HandleContextMenu(
 187     const content::ContextMenuParams& params) {
 188   if (!extension_options_guest_delegate_)
 189     return false;
 190
 191   return extension_options_guest_delegate_->HandleContextMenu(params);
 192 }
 193
 194 bool ExtensionOptionsGuest::ShouldCreateWebContents(
 195     content::WebContents* web_contents,
 196     int route_id,
 197     int main_frame_route_id,
 198     WindowContainerType window_container_type,
 199     const std::string& frame_name,
 200     const GURL& target_url,
 201     const std::string& partition_id,
 202     content::SessionStorageNamespace* session_storage_namespace) {
 203   // This method handles opening links from within the guest. Since this guest
 204   // view is used for displaying embedded extension options, we want any
 205   // external links to be opened in a new tab, not in a new guest view.
 206   // Therefore we just open the URL in a new tab, and since we aren't handling
 207   // the new web contents, we return false.
 208   // TODO(ericzeng): Open the tab in the background if the click was a
 209   //   ctrl-click or middle mouse button click
 210   if (extension_options_guest_delegate_) {
 211     extension_options_guest_delegate_->OpenURLInNewTab(
 212         content::OpenURLParams(target_url,
 213                                content::Referrer(),
 214                                NEW_FOREGROUND_TAB,
 215                                ui::PAGE_TRANSITION_LINK,
 216                                false));
 217   }
 218   return false;
 219 }
 220
 221 void ExtensionOptionsGuest::DidNavigateMainFrame(
 222     const content::LoadCommittedDetails& details,
 223     const content::FrameNavigateParams& params) {
 224   if (attached()) {
 225     auto guest_zoom_controller =
 226         ui_zoom::ZoomController::FromWebContents(web_contents());
 227     guest_zoom_controller->SetZoomMode(
 228         ui_zoom::ZoomController::ZOOM_MODE_ISOLATED);
 229     SetGuestZoomLevelToMatchEmbedder();
 230
 231     if (params.url.GetOrigin() != options_page_.GetOrigin()) {
 232       bad_message::ReceivedBadMessage(web_contents()->GetRenderProcessHost(),
 233                                       bad_message::EOG_BAD_ORIGIN);
 234     }
 235   }
 236 }
 237
 238 }  // namespace extensions