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// Copyright (c) 2012 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 ASH_WM_PARTIAL_SCREENSHOT_VIEW_H_
#define ASH_WM_PARTIAL_SCREENSHOT_VIEW_H_
#include "ash/ash_export.h"
#include "base/compiler_specific.h"
#include "ui/gfx/point.h"
#include "ui/views/widget/widget_delegate.h"
namespace aura {
class RootWindow;
}
namespace ash {
class ScreenshotDelegate;
// The view of taking partial screenshot, i.e.: drawing region
// rectangles during drag, and changing the mouse cursor to indicate
// the current mode.
class ASH_EXPORT PartialScreenshotView : public views::WidgetDelegateView {
public:
// Starts the UI for taking partial screenshot; dragging to select a region.
static void StartPartialScreenshot(ScreenshotDelegate* screenshot_delegate);
private:
class OverlayDelegate;
PartialScreenshotView(OverlayDelegate* overlay_delegate,
ScreenshotDelegate* screenshot_delegate);
virtual ~PartialScreenshotView();
// Initializes partial screenshot UI widget for |root_window|.
void Init(aura::RootWindow* root_window);
// Returns the currently selected region.
gfx::Rect GetScreenshotRect() const;
// Overridden from views::View:
virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE;
virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE;
virtual bool OnMouseDragged(const ui::MouseEvent& event) OVERRIDE;
virtual bool OnMouseWheel(const ui::MouseWheelEvent& event) OVERRIDE;
virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE;
bool is_dragging_;
gfx::Point start_position_;
gfx::Point current_position_;
// The delegate to receive Cancel. No ownership.
OverlayDelegate* overlay_delegate_;
// ScreenshotDelegate to take the actual screenshot. No ownership.
ScreenshotDelegate* screenshot_delegate_;
DISALLOW_COPY_AND_ASSIGN(PartialScreenshotView);
};
} // namespace ash
#endif // #ifndef ASH_WM_PARTIAL_SCREENSHOT_VIEW_H_
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