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// Copyright (c) 2011 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_AURA_ROOT_WINDOW_HOST_H_
#define UI_AURA_ROOT_WINDOW_HOST_H_
#pragma once
#include "base/message_loop.h"
#include "ui/aura/cursor.h"
#include "ui/gfx/native_widget_types.h"
namespace gfx {
class Point;
class Rect;
class Size;
}
namespace aura {
class RootWindow;
// RootWindowHost bridges between a native window and the embedded RootWindow.
// It provides the accelerated widget and maps events from the native os to
// aura.
class RootWindowHost : public MessageLoop::Dispatcher {
public:
virtual ~RootWindowHost() {}
// Creates a new RootWindowHost. The caller owns the returned value.
static RootWindowHost* Create(const gfx::Rect& bounds);
// Returns the actual size of the screen.
// (gfx::Screen only reports on the virtual desktop exposed by Aura.)
static gfx::Size GetNativeScreenSize();
// Sets the RootWindow this RootWindowHost is hosting. RootWindowHost does not
// own the RootWindow.
virtual void SetRootWindow(RootWindow* root_window) = 0;
// Returns the accelerated widget.
virtual gfx::AcceleratedWidget GetAcceleratedWidget() = 0;
// Shows the RootWindowHost.
virtual void Show() = 0;
// Toggles the host's full screen state.
virtual void ToggleFullScreen() = 0;
// Gets/Sets the size of the RootWindowHost.
virtual gfx::Size GetSize() const = 0;
virtual void SetSize(const gfx::Size& size) = 0;
// Returns the location of the RootWindow on native screen.
virtual gfx::Point GetLocationOnNativeScreen() const = 0;
// Sets the currently displayed cursor. Shows the cursor by default.
// If you want to update hidden cursor, should call ShowCursor(false)
// after this function.
virtual void SetCursor(gfx::NativeCursor cursor) = 0;
// Sets current cursor visibility to |show|.
virtual void ShowCursor(bool show) = 0;
// Queries the mouse's current position relative to the host window.
// The position is constrained within the host window.
// You should probably call RootWindow::last_mouse_location() instead; this
// method can be expensive.
virtual gfx::Point QueryMouseLocation() = 0;
// Posts |native_event| to the platform's event queue.
virtual void PostNativeEvent(const base::NativeEvent& native_event) = 0;
};
} // namespace aura
#endif // UI_AURA_ROOT_WINDOW_HOST_H_
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