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// Copyright (c) 2013 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 CONTENT_BROWSER_WEB_CONTENTS_AURA_IMAGE_WINDOW_DELEGATE_H_
#define CONTENT_BROWSER_WEB_CONTENTS_AURA_IMAGE_WINDOW_DELEGATE_H_
#include "ui/aura/window_delegate.h"
#include "ui/gfx/image/image.h"
#include "ui/gfx/size.h"
namespace content {
// An ImageWindowDelegate paints an image for a Window. The delegate destroys
// itself when the Window is destroyed. The delegate does not consume any event.
class ImageWindowDelegate : public aura::WindowDelegate {
public:
ImageWindowDelegate();
void SetImage(const gfx::Image& image);
bool has_image() const { return !image_.IsEmpty(); }
protected:
virtual ~ImageWindowDelegate();
// Overridden from aura::WindowDelegate:
virtual gfx::Size GetMinimumSize() const OVERRIDE;
virtual gfx::Size GetMaximumSize() const OVERRIDE;
virtual void OnBoundsChanged(const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds) OVERRIDE;
virtual gfx::NativeCursor GetCursor(const gfx::Point& point) OVERRIDE;
virtual int GetNonClientComponent(const gfx::Point& point) const OVERRIDE;
virtual bool ShouldDescendIntoChildForEventHandling(
aura::Window* child,
const gfx::Point& location) OVERRIDE;
virtual bool CanFocus() OVERRIDE;
virtual void OnCaptureLost() OVERRIDE;
virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE;
virtual void OnWindowDestroying() OVERRIDE;
virtual void OnWindowDestroyed() OVERRIDE;
virtual void OnWindowTargetVisibilityChanged(bool visible) OVERRIDE;
virtual bool HasHitTestMask() const OVERRIDE;
virtual void GetHitTestMask(gfx::Path* mask) const OVERRIDE;
virtual void DidRecreateLayer(ui::Layer* old_layer,
ui::Layer* new_layer) OVERRIDE;
protected:
gfx::Image image_;
gfx::Size window_size_;
// Keeps track of whether the window size matches the image size or not. If
// the image size is smaller than the window size, then the delegate paints a
// white background for the missing regions.
bool size_mismatch_;
DISALLOW_COPY_AND_ASSIGN(ImageWindowDelegate);
};
} // namespace content
#endif // CONTENT_BROWSER_WEB_CONTENTS_AURA_IMAGE_WINDOW_DELEGATE_H_
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