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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 "content/common/content_export.h"
#include "ui/aura/window_delegate.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/image/image.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 CONTENT_EXPORT ImageWindowDelegate : public aura::WindowDelegate {
public:
ImageWindowDelegate();
void SetImage(const gfx::Image& image);
bool has_image() const { return !image_.IsEmpty(); }
protected:
~ImageWindowDelegate() override;
// Overridden from aura::WindowDelegate:
gfx::Size GetMinimumSize() const override;
gfx::Size GetMaximumSize() const override;
void OnBoundsChanged(const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds) override;
gfx::NativeCursor GetCursor(const gfx::Point& point) override;
int GetNonClientComponent(const gfx::Point& point) const override;
bool ShouldDescendIntoChildForEventHandling(
aura::Window* child,
const gfx::Point& location) override;
bool CanFocus() override;
void OnCaptureLost() override;
void OnPaint(gfx::Canvas* canvas) override;
void OnDeviceScaleFactorChanged(float device_scale_factor) override;
void OnWindowDestroying(aura::Window* window) override;
void OnWindowDestroyed(aura::Window* window) override;
void OnWindowTargetVisibilityChanged(bool visible) override;
bool HasHitTestMask() const override;
void GetHitTestMask(gfx::Path* mask) const 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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