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      1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "content/browser/web_contents/aura/image_window_delegate.h"
      6 
      7 #include "ui/base/hit_test.h"
      8 #include "ui/compositor/compositor.h"
      9 #include "ui/gfx/canvas.h"
     10 #include "ui/gfx/image/image.h"
     11 #include "ui/gfx/image/image_skia.h"
     12 #include "ui/gfx/rect.h"
     13 #include "ui/gfx/size.h"
     14 
     15 namespace content {
     16 
     17 ImageWindowDelegate::ImageWindowDelegate()
     18     : size_mismatch_(false) {
     19 }
     20 
     21 ImageWindowDelegate::~ImageWindowDelegate() {
     22 }
     23 
     24 void ImageWindowDelegate::SetImage(const gfx::Image& image) {
     25   image_ = image;
     26   if (!window_size_.IsEmpty() && !image_.IsEmpty())
     27     size_mismatch_ = window_size_ != image_.AsImageSkia().size();
     28 }
     29 
     30 gfx::Size ImageWindowDelegate::GetMinimumSize() const {
     31   return gfx::Size();
     32 }
     33 
     34 gfx::Size ImageWindowDelegate::GetMaximumSize() const {
     35   return gfx::Size();
     36 }
     37 
     38 void ImageWindowDelegate::OnBoundsChanged(const gfx::Rect& old_bounds,
     39                                           const gfx::Rect& new_bounds) {
     40   window_size_ = new_bounds.size();
     41   if (!image_.IsEmpty())
     42     size_mismatch_ = window_size_ != image_.AsImageSkia().size();
     43 }
     44 
     45 gfx::NativeCursor ImageWindowDelegate::GetCursor(const gfx::Point& point) {
     46   return gfx::kNullCursor;
     47 }
     48 
     49 int ImageWindowDelegate::GetNonClientComponent(const gfx::Point& point) const {
     50   return HTNOWHERE;
     51 }
     52 
     53 bool ImageWindowDelegate::ShouldDescendIntoChildForEventHandling(
     54     aura::Window* child,
     55     const gfx::Point& location) {
     56   return false;
     57 }
     58 
     59 bool ImageWindowDelegate::CanFocus() {
     60   return false;
     61 }
     62 
     63 void ImageWindowDelegate::OnCaptureLost() {
     64 }
     65 
     66 void ImageWindowDelegate::OnPaint(gfx::Canvas* canvas) {
     67   if (image_.IsEmpty()) {
     68     canvas->DrawColor(SK_ColorGRAY);
     69   } else {
     70     if (size_mismatch_)
     71       canvas->DrawColor(SK_ColorWHITE);
     72     canvas->DrawImageInt(image_.AsImageSkia(), 0, 0);
     73   }
     74 }
     75 
     76 void ImageWindowDelegate::OnDeviceScaleFactorChanged(float scale_factor) {
     77 }
     78 
     79 void ImageWindowDelegate::OnWindowDestroying() {
     80 }
     81 
     82 void ImageWindowDelegate::OnWindowDestroyed() {
     83   delete this;
     84 }
     85 
     86 void ImageWindowDelegate::OnWindowTargetVisibilityChanged(bool visible) {
     87 }
     88 
     89 bool ImageWindowDelegate::HasHitTestMask() const {
     90   return false;
     91 }
     92 
     93 void ImageWindowDelegate::GetHitTestMask(gfx::Path* mask) const {
     94 }
     95 
     96 scoped_refptr<ui::Texture> ImageWindowDelegate::CopyTexture() {
     97   return scoped_refptr<ui::Texture>();
     98 }
     99 
    100 }  // namespace content
    101