root/content/browser/web_contents/aura/image_window_delegate.cc

DEFINITIONS

1. SetImage
2. GetMinimumSize
3. GetMaximumSize
4. OnBoundsChanged
5. GetCursor
6. GetNonClientComponent
7. ShouldDescendIntoChildForEventHandling
8. CanFocus
9. OnCaptureLost
10. OnPaint
11. OnDeviceScaleFactorChanged
12. OnWindowDestroying
13. OnWindowDestroyed
14. OnWindowTargetVisibilityChanged
15. HasHitTestMask
16. GetHitTestMask

// 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.

#include "content/browser/web_contents/aura/image_window_delegate.h"

#include "ui/base/cursor/cursor.h"
#include "ui/base/hit_test.h"
#include "ui/compositor/compositor.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/image/image.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/rect.h"
#include "ui/gfx/size.h"

namespace content {

ImageWindowDelegate::ImageWindowDelegate()
    : size_mismatch_(false) {
}

ImageWindowDelegate::~ImageWindowDelegate() {
}

void ImageWindowDelegate::SetImage(const gfx::Image& image) {
  image_ = image;
  if (!window_size_.IsEmpty() && !image_.IsEmpty())
    size_mismatch_ = window_size_ != image_.AsImageSkia().size();
}

gfx::Size ImageWindowDelegate::GetMinimumSize() const {
  return gfx::Size();
}

gfx::Size ImageWindowDelegate::GetMaximumSize() const {
  return gfx::Size();
}

void ImageWindowDelegate::OnBoundsChanged(const gfx::Rect& old_bounds,
                                          const gfx::Rect& new_bounds) {
  window_size_ = new_bounds.size();
  if (!image_.IsEmpty())
    size_mismatch_ = window_size_ != image_.AsImageSkia().size();
}

gfx::NativeCursor ImageWindowDelegate::GetCursor(const gfx::Point& point) {
  return gfx::kNullCursor;
}

int ImageWindowDelegate::GetNonClientComponent(const gfx::Point& point) const {
  return HTNOWHERE;
}

bool ImageWindowDelegate::ShouldDescendIntoChildForEventHandling(
    aura::Window* child,
    const gfx::Point& location) {
  return false;
}

bool ImageWindowDelegate::CanFocus() {
  return false;
}

void ImageWindowDelegate::OnCaptureLost() {
}

void ImageWindowDelegate::OnPaint(gfx::Canvas* canvas) {
  if (image_.IsEmpty()) {
    canvas->DrawColor(SK_ColorGRAY);
  } else {
    if (size_mismatch_)
      canvas->DrawColor(SK_ColorWHITE);
    canvas->DrawImageInt(image_.AsImageSkia(), 0, 0);
  }
}

void ImageWindowDelegate::OnDeviceScaleFactorChanged(float scale_factor) {
}

void ImageWindowDelegate::OnWindowDestroying(aura::Window* window) {
}

void ImageWindowDelegate::OnWindowDestroyed(aura::Window* window) {
  delete this;
}

void ImageWindowDelegate::OnWindowTargetVisibilityChanged(bool visible) {
}

bool ImageWindowDelegate::HasHitTestMask() const {
  return false;
}

void ImageWindowDelegate::GetHitTestMask(gfx::Path* mask) const {
}

}  // namespace content