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// Copyright (c) 2009 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.
#ifndef WEBKIT_PLUGINS_NPAPI_CARBON_PLUGIN_WINDOW_TRACKER_MAC_H_
#define WEBKIT_PLUGINS_NPAPI_CARBON_PLUGIN_WINDOW_TRACKER_MAC_H_
#include <Carbon/Carbon.h>
#include <map>
#include "base/basictypes.h"
namespace webkit {
namespace npapi {
// This is really a WebPluginDelegateImpl, but that class is private to the
// framework, and these functions are called from a dylib.
typedef void* OpaquePluginRef;
// Creates and tracks the invisible windows that are necessary for
// Carbon-event-model plugins.
//
// Serves as a bridge between plugin delegate instances and the Carbon
// interposing library. The Carbon functions we interpose work in terms of
// WindowRefs, and we need to be able to map from those back to the plugin
// delegates that know what we should claim about the state of the window.
class __attribute__((visibility("default"))) CarbonPluginWindowTracker {
public:
// Returns the shared window tracker instance.
static CarbonPluginWindowTracker* SharedInstance();
// Creates a new carbon window associated with |delegate|.
WindowRef CreateDummyWindowForDelegate(OpaquePluginRef delegate);
// Returns the WebPluginDelegate associated with the given dummy window.
OpaquePluginRef GetDelegateForDummyWindow(WindowRef window) const;
// Returns the dummy window associated with |delegate|.
WindowRef GetDummyWindowForDelegate(OpaquePluginRef delegate) const;
// Destroys the dummy window for |delegate|.
void DestroyDummyWindowForDelegate(OpaquePluginRef delegate,
WindowRef window);
private:
typedef std::map<WindowRef, OpaquePluginRef> WindowToDelegateMap;
typedef std::map<OpaquePluginRef, WindowRef> DelegateToWindowMap;
CarbonPluginWindowTracker();
~CarbonPluginWindowTracker();
WindowToDelegateMap window_to_delegate_map_;
DelegateToWindowMap delegate_to_window_map_;
DISALLOW_COPY_AND_ASSIGN(CarbonPluginWindowTracker);
};
} // namespace npapi
} // namespace webkit
#endif // WEBKIT_PLUGINS_NPAPI_CARBON_PLUGIN_WINDOW_TRACKER_MAC_H_
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