Move src/chrome/views to src/views. RS=darin http://crbug.com/11387

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15604 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 79 insertions, 0 deletions

diff --git a/views/accessibility/view_accessibility_wrapper.cc b/views/accessibility/view_accessibility_wrapper.cc
new file mode 100644
index 0000000..ff336ae
--- /dev/null
+++ b/views/accessibility/view_accessibility_wrapper.cc
@@ -0,0 +1,79 @@
+// Copyright (c) 2006-2008 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 "views/accessibility/view_accessibility_wrapper.h"
+
+#include "views/accessibility/view_accessibility.h"
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// ViewAccessibilityWrapper - constructors, destructors
+//
+////////////////////////////////////////////////////////////////////////////////
+
+ViewAccessibilityWrapper::ViewAccessibilityWrapper(views::View* view)
+    : accessibility_info_(NULL),
+      view_(view) {
+}
+
+STDMETHODIMP ViewAccessibilityWrapper::CreateDefaultInstance(REFIID iid) {
+  if (IID_IUnknown == iid || IID_IDispatch == iid || IID_IAccessible == iid) {
+    // If there is no instance of ViewAccessibility created, create it
+    // now. Otherwise reuse previous instance.
+    if (!accessibility_info_) {
+      CComObject<ViewAccessibility>* instance = NULL;
+
+      HRESULT hr = CComObject<ViewAccessibility>::CreateInstance(&instance);
+
+      if (!SUCCEEDED(hr) || !instance)
+        return E_FAIL;
+
+      CComPtr<IAccessible> accessibility_instance(instance);
+
+      if (!SUCCEEDED(instance->Initialize(view_)))
+        return E_FAIL;
+
+      // All is well, assign the temp instance to the class smart pointer.
+      accessibility_info_.Attach(accessibility_instance.Detach());
+    }
+    return S_OK;
+  }
+  // Interface not supported.
+  return E_NOINTERFACE;
+}
+
+STDMETHODIMP ViewAccessibilityWrapper::GetInstance(REFIID iid,
+                                                   void** interface_ptr) {
+  if (IID_IUnknown == iid || IID_IDispatch == iid || IID_IAccessible == iid) {
+    // If there is no accessibility instance created, create a default now.
+    // Otherwise reuse previous instance.
+    if (!accessibility_info_) {
+      HRESULT hr = CreateDefaultInstance(iid);
+
+      if (hr != S_OK) {
+        // Interface creation failed.
+        *interface_ptr = NULL;
+        return E_NOINTERFACE;
+      }
+    }
+    *interface_ptr = static_cast<IAccessible*>(accessibility_info_);
+    return S_OK;
+  }
+  // No supported interface found, return error.
+  *interface_ptr = NULL;
+  return E_NOINTERFACE;
+}
+
+STDMETHODIMP ViewAccessibilityWrapper::SetInstance(IAccessible* interface_ptr) {
+  if (!interface_ptr)
+    return E_NOINTERFACE;
+
+  accessibility_info_.Attach(interface_ptr);
+
+  // Paranoia check, to make sure we do have a valid IAccessible pointer stored.
+  if (!accessibility_info_)
+    return E_FAIL;
+
+  return S_OK;
+}