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// Copyright 2015 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 UI_VIEWS_MUS_WINDOW_MANAGER_CONNECTION_H_
#define UI_VIEWS_MUS_WINDOW_MANAGER_CONNECTION_H_
#include <stdint.h>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "components/mus/public/cpp/window_tree_delegate.h"
#include "ui/views/mus/mus_export.h"
#include "ui/views/mus/screen_mus_delegate.h"
#include "ui/views/widget/widget.h"
namespace mojo {
class Connector;
}
namespace views {
class NativeWidget;
class ScreenMus;
namespace internal {
class NativeWidgetDelegate;
}
// Provides configuration to mus in views. This consists of the following:
// . Provides a Screen implementation backed by mus.
// . Creates and owns a WindowTreeConnection.
// . Registers itself as the factory for creating NativeWidgets so that a
// NativeWidgetMus is created.
// WindowManagerConnection is a singleton and should be created early on.
//
// TODO(sky): this name is now totally confusing. Come up with a better one.
class VIEWS_MUS_EXPORT WindowManagerConnection
: public NON_EXPORTED_BASE(mus::WindowTreeDelegate),
public ScreenMusDelegate {
public:
static void Create(mojo::Connector* connector);
static WindowManagerConnection* Get();
static bool Exists();
// Destroys the singleton instance.
static void Reset();
mojo::Connector* connector() { return connector_; }
mus::Window* NewWindow(const std::map<std::string,
std::vector<uint8_t>>& properties);
NativeWidget* CreateNativeWidgetMus(
const std::map<std::string, std::vector<uint8_t>>& properties,
const Widget::InitParams& init_params,
internal::NativeWidgetDelegate* delegate);
private:
explicit WindowManagerConnection(mojo::Connector* connector);
~WindowManagerConnection() override;
// mus::WindowTreeDelegate:
void OnEmbed(mus::Window* root) override;
void OnConnectionLost(mus::WindowTreeConnection* connection) override;
// ScreenMusDelegate:
void OnWindowManagerFrameValuesChanged() override;
mojo::Connector* connector_;
scoped_ptr<ScreenMus> screen_;
scoped_ptr<mus::WindowTreeConnection> window_tree_connection_;
DISALLOW_COPY_AND_ASSIGN(WindowManagerConnection);
};
} // namespace views
#endif // UI_VIEWS_MUS_WINDOW_MANAGER_CONNECTION_H_
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