1 files changed, 46 insertions, 0 deletions
diff --git a/ceee/ie/common/ie_tab_interfaces.cc b/ceee/ie/common/ie_tab_interfaces.cc
new file mode 100644
index 0000000..eeadd38e
--- /dev/null
+++ b/ceee/ie/common/ie_tab_interfaces.cc
@@ -0,0 +1,46 @@
+// 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.
+//
+// ITabWindow and ITabWindowManager interfaces and approaches
+// related to them.
+
+#include "ceee/ie/common/ie_tab_interfaces.h"
+
+#include <shlguid.h>  // SID_SWebBrowserApp
+
+#include "base/logging.h"
+#include "ceee/common/com_utils.h"
+#include "ceee/common/windows_constants.h"
+#include "ceee/common/window_utils.h"
+
+namespace ie_tab_interfaces {
+
+HRESULT TabWindowManagerFromFrame(HWND ie_frame, REFIID riid, void** manager) {
+  DCHECK(ie_frame);
+  DCHECK(manager && !*manager);
+
+  if (!window_utils::IsWindowThread(ie_frame)) {
+    LOG(ERROR) << "Can't get tab window manager from frame in other process "
+                  "or thread that created the frame window.";
+    return E_INVALIDARG;
+  }
+
+  IDropTarget* drop_target = reinterpret_cast<IDropTarget*>(
+      ::GetPropW(ie_frame, L"OleDropTargetInterface"));
+  if (!drop_target) {
+    NOTREACHED() << "No drop target";
+    return E_UNEXPECTED;
+  }
+
+  CComQIPtr<IServiceProvider> frame_service_provider(drop_target);
+  if (!frame_service_provider) {
+    NOTREACHED();
+    return E_NOINTERFACE;
+  }
+
+  return frame_service_provider->QueryService(SID_STabWindowManager, riid,
+                                              manager);
+}
+
+}  // namespace ie_tab_interfaces