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      1 // Copyright (c) 2010 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/accessibility/browser_accessibility_manager_mac.h"
      6 
      7 #import "base/logging.h"
      8 #import "chrome/browser/accessibility/browser_accessibility_cocoa.h"
      9 #include "content/common/view_messages.h"
     10 
     11 // static
     12 BrowserAccessibilityManager* BrowserAccessibilityManager::Create(
     13     gfx::NativeView parent_view,
     14     const WebAccessibility& src,
     15     BrowserAccessibilityDelegate* delegate,
     16     BrowserAccessibilityFactory* factory) {
     17   return new BrowserAccessibilityManagerMac(
     18       parent_view, src, delegate, factory);
     19 }
     20 
     21 BrowserAccessibilityManagerMac::BrowserAccessibilityManagerMac(
     22     gfx::NativeView parent_window,
     23     const webkit_glue::WebAccessibility& src,
     24     BrowserAccessibilityDelegate* delegate,
     25     BrowserAccessibilityFactory* factory)
     26         : BrowserAccessibilityManager(parent_window, src, delegate, factory) {
     27 }
     28 
     29 void BrowserAccessibilityManagerMac::NotifyAccessibilityEvent(
     30     int type,
     31     BrowserAccessibility* node) {
     32   // Refer to AXObjectCache.mm (webkit).
     33   NSString* event_id = @"";
     34   switch (type) {
     35     case ViewHostMsg_AccessibilityNotification_Type::
     36         NOTIFICATION_TYPE_CHECK_STATE_CHANGED:
     37       // Does not exist on Mac.
     38       return;
     39     case ViewHostMsg_AccessibilityNotification_Type::
     40         NOTIFICATION_TYPE_CHILDREN_CHANGED:
     41       // TODO(dtseng): no clear equivalent on Mac.
     42       return;
     43     case ViewHostMsg_AccessibilityNotification_Type::
     44         NOTIFICATION_TYPE_FOCUS_CHANGED:
     45       event_id = NSAccessibilityFocusedUIElementChangedNotification;
     46       break;
     47     case ViewHostMsg_AccessibilityNotification_Type::
     48         NOTIFICATION_TYPE_LOAD_COMPLETE:
     49       event_id = @"AXLoadComplete";
     50       break;
     51     case ViewHostMsg_AccessibilityNotification_Type::
     52         NOTIFICATION_TYPE_VALUE_CHANGED:
     53       event_id = NSAccessibilityValueChangedNotification;
     54       break;
     55     case ViewHostMsg_AccessibilityNotification_Type::
     56         NOTIFICATION_TYPE_SELECTED_TEXT_CHANGED:
     57       event_id = NSAccessibilitySelectedTextChangedNotification;
     58       break;
     59   }
     60   BrowserAccessibilityCocoa* native_node = node->toBrowserAccessibilityCocoa();
     61   DCHECK(native_node);
     62   NSAccessibilityPostNotification(native_node, event_id);
     63 }
     64