Add tab status to accessibility labels

chrome/browser/ui/views/frame/browser_view.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/frame/browser_view.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 1577 matching lines @@
 #endif
   return false;
 }
 
 base::string16 BrowserView::GetWindowTitle() const {
   return browser_->GetWindowTitleForCurrentTab(true /* include_app_name */);
 }
 
 base::string16 BrowserView::GetAccessibleWindowTitle() const {
   const bool include_app_name = false;
+  int active_index = browser_->tab_strip_model()->active_index();
+  if (active_index > -1) {
+    if (IsIncognito()) {
+      return l10n_util::GetStringFUTF16(
+          IDS_ACCESSIBLE_INCOGNITO_WINDOW_TITLE_FORMAT,
+          GetAccessibleTabLabel(include_app_name, active_index));
+    }
+    return GetAccessibleTabLabel(include_app_name, active_index);
+  }
   if (IsIncognito()) {
     return l10n_util::GetStringFUTF16(
         IDS_ACCESSIBLE_INCOGNITO_WINDOW_TITLE_FORMAT,
         browser_->GetWindowTitleForCurrentTab(include_app_name));
   }
   return browser_->GetWindowTitleForCurrentTab(include_app_name);
 }
 
+base::string16 BrowserView::GetAccessibleTabLabel(bool include_app_name,
+                                                  int index) const {
+  // ChromeVox provides an invalid index on browser start up before
+  // any tabs are created.
+  if (index == -1)
+    return base::string16();
+
+  base::string16 window_title =
+      browser_->GetWindowTitleForTab(include_app_name, index);
+  const TabRendererData& data = tabstrip_->tab_at(index)->data();
+
+  // Tab has crashed.
+  if (data.IsCrashed()) {
+    return l10n_util::GetStringFUTF16(IDS_TAB_AX_LABEL_CRASHED_FORMAT,
+                                      window_title);
+  }
+  // Network error interstitial.
+  if (data.network_state == TabRendererData::NETWORK_STATE_ERROR) {
+    return l10n_util::GetStringFUTF16(IDS_TAB_AX_LABEL_NETWORK_ERROR_FORMAT,
+                                      window_title);
+  }
+  // Alert tab states.
+  switch (data.alert_state) {
+    case TabAlertState::AUDIO_PLAYING:
+      return l10n_util::GetStringFUTF16(IDS_TAB_AX_LABEL_AUDIO_PLAYING_FORMAT,
+                                        window_title);
+    case TabAlertState::USB_CONNECTED:
+      return l10n_util::GetStringFUTF16(IDS_TAB_AX_LABEL_USB_CONNECTED_FORMAT,
+                                        window_title);
+    case TabAlertState::BLUETOOTH_CONNECTED:
+      return l10n_util::GetStringFUTF16(
+          IDS_TAB_AX_LABEL_BLUETOOTH_CONNECTED_FORMAT, window_title);
+    case TabAlertState::MEDIA_RECORDING:
+      return l10n_util::GetStringFUTF16(
+          IDS_TAB_AX_LABEL_MEDIA_RECORDING_FORMAT, window_title);
+    case TabAlertState::AUDIO_MUTING:
+      return l10n_util::GetStringFUTF16(IDS_TAB_AX_LABEL_AUDIO_MUTING_FORMAT,
+                                        window_title);
+    case TabAlertState::TAB_CAPTURING:
+      return l10n_util::GetStringFUTF16(IDS_TAB_AX_LABEL_TAB_CAPTURING_FORMAT,
+                                        window_title);
+    case TabAlertState::NONE:
+      return window_title;
+  }
+  return base::string16();
+}
+
 views::View* BrowserView::GetInitiallyFocusedView() {
   return nullptr;
 }
 
 bool BrowserView::ShouldShowWindowTitle() const {
 #if defined(USE_ASH)
   // For Ash only, trusted windows (apps and settings) do not show a title,
   // crbug.com/119411. Child windows (i.e. popups) do show a title.
   if (browser_->is_trusted_source() &&
       !browser_->SupportsWindowFeature(Browser::FEATURE_WEBAPPFRAME))
@@ skipping 398 matching lines @@
   AddChildView(contents_container_);
   set_contents_view(contents_container_);
 
   // Top container holds tab strip and toolbar and lives at the front of the
   // view hierarchy.
   top_container_ = new TopContainerView(this);
   AddChildView(top_container_);
 
   // TabStrip takes ownership of the controller.
   BrowserTabStripController* tabstrip_controller =
-      new BrowserTabStripController(browser_.get(),
-                                    browser_->tab_strip_model());
+      new BrowserTabStripController(browser_->tab_strip_model(), this);
   tabstrip_ = new TabStrip(tabstrip_controller);
   top_container_->AddChildView(tabstrip_);
   tabstrip_controller->InitFromModel(tabstrip_);
 
   toolbar_ = new ToolbarView(browser_.get());
   top_container_->AddChildView(toolbar_);
   toolbar_->Init();
 
   // The infobar container must come after the toolbar so its arrow paints on
   // top.
@@ skipping 556 matching lines @@
 }
 
 extensions::ActiveTabPermissionGranter*
 BrowserView::GetActiveTabPermissionGranter() {
   content::WebContents* web_contents = GetActiveWebContents();
   if (!web_contents)
     return nullptr;
   return extensions::TabHelper::FromWebContents(web_contents)
       ->active_tab_permission_granter();
 }