chrome/browser/guest_view/web_view/chrome_web_view_guest_delegate.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
   6 #include "chrome/browser/guest_view/web_view/chrome_web_view_guest_delegate.h"
   7
   8 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
   9 #include "chrome/browser/favicon/favicon_tab_helper.h"
  10 #include "chrome/browser/profiles/profile.h"
  11 #include "chrome/browser/renderer_context_menu/render_view_context_menu.h"
  12 #include "chrome/browser/ui/pdf/chrome_pdf_web_contents_helper_client.h"
  13 #include "chrome/common/chrome_version_info.h"
  14 #include "components/browsing_data/storage_partition_http_cache_data_remover.h"
  15 #include "components/pdf/browser/pdf_web_contents_helper.h"
  16 #include "components/renderer_context_menu/context_menu_delegate.h"
  17 #include "components/web_cache/browser/web_cache_manager.h"
  18 #include "content/public/browser/render_process_host.h"
  19 #include "extensions/browser/api/web_request/web_request_api.h"
  20 #include "extensions/browser/guest_view/web_view/web_view_constants.h"
  21
  22 #if defined(ENABLE_PRINTING)
  23 #if defined(ENABLE_PRINT_PREVIEW)
  24 #include "chrome/browser/printing/print_preview_message_handler.h"
  25 #include "chrome/browser/printing/print_view_manager.h"
  26 #else
  27 #include "chrome/browser/printing/print_view_manager_basic.h"
  28 #endif  // defined(ENABLE_PRINT_PREVIEW)
  29 #endif  // defined(ENABLE_PRINTING)
  30
  31 namespace extensions {
  32
  33 ChromeWebViewGuestDelegate::ChromeWebViewGuestDelegate(
  34     WebViewGuest* web_view_guest)
  35     : pending_context_menu_request_id_(0),
  36       chromevox_injected_(false),
  37       web_view_guest_(web_view_guest),
  38       weak_ptr_factory_(this) {
  39 }
  40
  41 ChromeWebViewGuestDelegate::~ChromeWebViewGuestDelegate() {
  42 }
  43
  44 void ChromeWebViewGuestDelegate::ClearCache(
  45     base::Time remove_since,
  46     const base::Closure& done_callback) {
  47   int render_process_id = guest_web_contents()->GetRenderProcessHost()->GetID();
  48   // We need to clear renderer cache separately for our process because
  49   // StoragePartitionHttpCacheDataRemover::ClearData() does not clear that.
  50   web_cache::WebCacheManager::GetInstance()->Remove(render_process_id);
  51   web_cache::WebCacheManager::GetInstance()->ClearCacheForProcess(
  52       render_process_id);
  53
  54   content::StoragePartition* partition =
  55       content::BrowserContext::GetStoragePartition(
  56           guest_web_contents()->GetBrowserContext(),
  57           guest_web_contents()->GetSiteInstance());
  58
  59   // StoragePartitionHttpCacheDataRemover removes itself when it is done.
  60   // TODO(lazyboy): Once StoragePartitionHttpCacheDataRemover moves to
  61   // components/, move |ClearCache| to WebViewGuest: http//crbug.com/471287.
  62   browsing_data::StoragePartitionHttpCacheDataRemover::CreateForRange(
  63       partition, remove_since, base::Time::Now())->Remove(done_callback);
  64 }
  65
  66 bool ChromeWebViewGuestDelegate::HandleContextMenu(
  67     const content::ContextMenuParams& params) {
  68   ContextMenuDelegate* menu_delegate =
  69       ContextMenuDelegate::FromWebContents(guest_web_contents());
  70   DCHECK(menu_delegate);
  71
  72   pending_menu_ = menu_delegate->BuildMenu(guest_web_contents(), params);
  73
  74   // Pass it to embedder.
  75   int request_id = ++pending_context_menu_request_id_;
  76   scoped_ptr<base::DictionaryValue> args(new base::DictionaryValue());
  77   scoped_ptr<base::ListValue> items =
  78       MenuModelToValue(pending_menu_->menu_model());
  79   args->Set(webview::kContextMenuItems, items.release());
  80   args->SetInteger(webview::kRequestId, request_id);
  81   web_view_guest()->DispatchEventToView(
  82       new GuestViewBase::Event(webview::kEventContextMenuShow, args.Pass()));
  83   return true;
  84 }
  85
  86 // TODO(hanxi) Investigate which of these observers should move to the
  87 // extension module in the future.
  88 void ChromeWebViewGuestDelegate::OnAttachWebViewHelpers(
  89     content::WebContents* contents) {
  90   FaviconTabHelper::CreateForWebContents(contents);
  91   ChromeExtensionWebContentsObserver::CreateForWebContents(contents);
  92 #if defined(ENABLE_PRINTING)
  93 #if defined(ENABLE_PRINT_PREVIEW)
  94   printing::PrintViewManager::CreateForWebContents(contents);
  95   printing::PrintPreviewMessageHandler::CreateForWebContents(contents);
  96 #else
  97   printing::PrintViewManagerBasic::CreateForWebContents(contents);
  98 #endif  // defined(ENABLE_PRINT_PREVIEW)
  99 #endif  // defined(ENABLE_PRINTING)
 100   pdf::PDFWebContentsHelper::CreateForWebContentsWithClient(
 101       contents,
 102       scoped_ptr<pdf::PDFWebContentsHelperClient>(
 103           new ChromePDFWebContentsHelperClient()));
 104 }
 105
 106 void ChromeWebViewGuestDelegate::OnDidCommitProvisionalLoadForFrame(
 107     bool is_main_frame) {
 108   if (is_main_frame)
 109     chromevox_injected_ = false;
 110 }
 111
 112 void ChromeWebViewGuestDelegate::OnDidInitialize() {
 113 #if defined(OS_CHROMEOS)
 114   chromeos::AccessibilityManager* accessibility_manager =
 115       chromeos::AccessibilityManager::Get();
 116   CHECK(accessibility_manager);
 117   accessibility_subscription_ = accessibility_manager->RegisterCallback(
 118       base::Bind(&ChromeWebViewGuestDelegate::OnAccessibilityStatusChanged,
 119                  weak_ptr_factory_.GetWeakPtr()));
 120 #endif
 121 }
 122
 123 void ChromeWebViewGuestDelegate::OnDocumentLoadedInFrame(
 124     content::RenderFrameHost* render_frame_host) {
 125   if (!render_frame_host->GetParent())
 126     InjectChromeVoxIfNeeded(render_frame_host->GetRenderViewHost());
 127 }
 128
 129 void ChromeWebViewGuestDelegate::OnGuestDestroyed() {
 130   // Clean up custom context menu items for this guest.
 131   MenuManager* menu_manager = MenuManager::Get(
 132       Profile::FromBrowserContext(web_view_guest()->browser_context()));
 133   menu_manager->RemoveAllContextItems(MenuItem::ExtensionKey(
 134       web_view_guest()->owner_extension_id(),
 135       web_view_guest()->view_instance_id()));
 136 }
 137
 138 // static
 139 scoped_ptr<base::ListValue> ChromeWebViewGuestDelegate::MenuModelToValue(
 140     const ui::SimpleMenuModel& menu_model) {
 141   scoped_ptr<base::ListValue> items(new base::ListValue());
 142   for (int i = 0; i < menu_model.GetItemCount(); ++i) {
 143     base::DictionaryValue* item_value = new base::DictionaryValue();
 144     // TODO(lazyboy): We need to expose some kind of enum equivalent of
 145     // |command_id| instead of plain integers.
 146     item_value->SetInteger(webview::kMenuItemCommandId,
 147                            menu_model.GetCommandIdAt(i));
 148     item_value->SetString(webview::kMenuItemLabel, menu_model.GetLabelAt(i));
 149     items->Append(item_value);
 150   }
 151   return items.Pass();
 152 }
 153
 154 void ChromeWebViewGuestDelegate::OnShowContextMenu(
 155     int request_id,
 156     const MenuItemVector* items) {
 157   if (!pending_menu_.get())
 158     return;
 159
 160   // Make sure this was the correct request.
 161   if (request_id != pending_context_menu_request_id_)
 162     return;
 163
 164   // TODO(lazyboy): Implement.
 165   DCHECK(!items);
 166
 167   ContextMenuDelegate* menu_delegate =
 168       ContextMenuDelegate::FromWebContents(guest_web_contents());
 169   menu_delegate->ShowMenu(pending_menu_.Pass());
 170 }
 171
 172 void ChromeWebViewGuestDelegate::InjectChromeVoxIfNeeded(
 173     content::RenderViewHost* render_view_host) {
 174 #if defined(OS_CHROMEOS)
 175   if (!chromevox_injected_) {
 176     chromeos::AccessibilityManager* manager =
 177         chromeos::AccessibilityManager::Get();
 178     if (manager && manager->IsSpokenFeedbackEnabled()) {
 179       manager->InjectChromeVox(render_view_host);
 180       chromevox_injected_ = true;
 181     }
 182   }
 183 #endif
 184 }
 185
 186 #if defined(OS_CHROMEOS)
 187 void ChromeWebViewGuestDelegate::OnAccessibilityStatusChanged(
 188     const chromeos::AccessibilityStatusEventDetails& details) {
 189   if (details.notification_type == chromeos::ACCESSIBILITY_MANAGER_SHUTDOWN) {
 190     accessibility_subscription_.reset();
 191   } else if (details.notification_type ==
 192       chromeos::ACCESSIBILITY_TOGGLE_SPOKEN_FEEDBACK) {
 193     if (details.enabled)
 194       InjectChromeVoxIfNeeded(guest_web_contents()->GetRenderViewHost());
 195     else
 196       chromevox_injected_ = false;
 197   }
 198 }
 199 #endif
 200
 201 }  // namespace extensions