Refactoring of BrowserAccessibility (Mac) to use cross platform base classes.

BUG=none
TEST=passing unit tests.
Review URL: http://codereview.chromium.org/3696003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@62431 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 80 insertions, 0 deletions

diff --git a/chrome/browser/accessibility/browser_accessibility_manager_mac.mm b/chrome/browser/accessibility/browser_accessibility_manager_mac.mm
new file mode 100644
index 0000000..8aadf8b
--- /dev/null
+++ b/chrome/browser/accessibility/browser_accessibility_manager_mac.mm
@@ -0,0 +1,80 @@
+// Copyright (c) 2010 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/accessibility/browser_accessibility_manager_mac.h"
+
+#include "chrome/browser/accessibility/browser_accessibility_mac.h"
+#import "chrome/browser/cocoa/browser_accessibility.h"
+// TODO(dtseng): move to delegate?
+#import "chrome/browser/renderer_host/render_widget_host_view_mac.h"
+
+// static
+BrowserAccessibilityManager* BrowserAccessibilityManager::Create(
+    gfx::NativeView parent_view,
+    const WebAccessibility& src,
+    BrowserAccessibilityDelegate* delegate,
+    BrowserAccessibilityFactory* factory) {
+  return new BrowserAccessibilityManagerMac(
+      parent_view, src, delegate, factory);
+}
+
+BrowserAccessibility* BrowserAccessibilityFactory::Create() {
+  return BrowserAccessibility::Create();
+}
+
+BrowserAccessibilityManagerMac::BrowserAccessibilityManagerMac(
+    gfx::NativeView parent_window,
+    const webkit_glue::WebAccessibility& src,
+    BrowserAccessibilityDelegate* delegate,
+    BrowserAccessibilityFactory* factory) 
+        : BrowserAccessibilityManager(parent_window, src, delegate, factory) {
+}
+
+void BrowserAccessibilityManagerMac::NotifyAccessibilityEvent(
+    ViewHostMsg_AccessibilityNotification_Params::NotificationType n,
+    BrowserAccessibility* node) {
+  // TODO(dtseng): support all notifications.
+  NSString* event_id = @"";
+  switch (n) {
+    case ViewHostMsg_AccessibilityNotification_Params::
+        NOTIFICATION_TYPE_CHECK_STATE_CHANGED:
+      return;
+    case ViewHostMsg_AccessibilityNotification_Params::
+        NOTIFICATION_TYPE_CHILDREN_CHANGED:
+      event_id = NSAccessibilityValueChangedNotification;
+      if (GetRoot() == node)
+        [((RenderWidgetHostViewCocoa*)GetParentView())
+            setAccessibilityTreeRoot:GetRoot()];
+      else
+        [node->GetParent()->toBrowserAccessibilityMac()->native_view()
+            updateDescendants];
+      break;
+    case ViewHostMsg_AccessibilityNotification_Params::
+        NOTIFICATION_TYPE_FOCUS_CHANGED:
+      event_id = NSAccessibilityFocusedUIElementChangedNotification;
+      if (GetRoot() == node)
+        [((RenderWidgetHostViewCocoa*)GetParentView())
+            setAccessibilityTreeRoot:GetRoot()];
+      else
+        [node->GetParent()->toBrowserAccessibilityMac()->native_view()
+            updateDescendants];
+      break;
+    case ViewHostMsg_AccessibilityNotification_Params::
+        NOTIFICATION_TYPE_LOAD_COMPLETE:
+      [((RenderWidgetHostViewCocoa*)GetParentView())
+          setAccessibilityTreeRoot:GetRoot()];
+      return;
+    case ViewHostMsg_AccessibilityNotification_Params::
+        NOTIFICATION_TYPE_VALUE_CHANGED:
+      event_id = NSAccessibilityValueChangedNotification;
+      break;
+    case ViewHostMsg_AccessibilityNotification_Params::
+        NOTIFICATION_TYPE_SELECTED_TEXT_CHANGED:
+      return;
+  }
+  BrowserAccessibilityCocoa* native_node = node->toBrowserAccessibilityMac()->
+      native_view();
+  DCHECK(native_node);
+  NSAccessibilityPostNotification(native_node, event_id); 
+}