Make views Slider accessible on Chrome OS

chrome/browser/ui/views/accessibility_event_router_views.cc

 // Copyright (c) 2011 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/accessibility_event_router_views.h"
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
@@ skipping 146 matching lines @@
     break;
   case ui::AccessibilityTypes::ROLE_LOCATION_BAR:
   case ui::AccessibilityTypes::ROLE_TEXT:
     SendTextfieldNotification(view, type, profile);
     break;
   case ui::AccessibilityTypes::ROLE_MENUITEM:
     SendMenuItemNotification(view, type, profile);
     break;
   case ui::AccessibilityTypes::ROLE_RADIOBUTTON:
     // Not used anymore?
+  case ui::AccessibilityTypes::ROLE_SLIDER:
+    SendSliderNotification(view, type, profile);
+    break;
   default:
     // If this is encountered, please file a bug with the role that wasn't
     // caught so we can add accessibility extension API support.
     NOTREACHED();
   }
 }
 
 // static
 void AccessibilityEventRouterViews::SendButtonNotification(
     views::View* view,
@@ skipping 118 matching lines @@
 
   // Otherwise get it from the window's accessible name.
   if (window_text.empty())
     window_text = UTF16ToUTF8(state.name);
 
   AccessibilityWindowInfo info(profile, window_text);
   SendAccessibilityNotification(type, &info);
 }
 
 // static
+void AccessibilityEventRouterViews::SendSliderNotification(
+    views::View* view,
+    int type,
+    Profile* profile) {
+  ui::AccessibleViewState state;
+  view->GetAccessibleState(&state);
+
+  std::string name = UTF16ToUTF8(state.name);
+  std::string value = UTF16ToUTF8(state.value);
+  std::string context = GetViewContext(view);
+  AccessibilitySliderInfo info(
+      profile,
+      name,
+      context,
+      value);
+  SendAccessibilityNotification(type, &info);
+}
+
+// static
 std::string AccessibilityEventRouterViews::GetViewName(views::View* view) {
   ui::AccessibleViewState state;
   view->GetAccessibleState(&state);
   return UTF16ToUTF8(state.name);
 }
 
 // static
 std::string AccessibilityEventRouterViews::GetViewContext(views::View* view) {
   for (views::View* parent = view->parent();
        parent;
@@ skipping 101 matching lines @@
     return UTF16ToUTF8(state.name);
 
   for (int i = 0; i < view->child_count(); ++i) {
     views::View* child = view->child_at(i);
     std::string result = RecursiveGetStaticText(child);
     if (!result.empty())
       return result;
   }
   return std::string();
 }