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

   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/cursor/cursor.h"
   8 #include "ui/base/hit_test.h"
   9 #include "ui/compositor/compositor.h"
  10 #include "ui/gfx/canvas.h"
  11 #include "ui/gfx/image/image.h"
  12 #include "ui/gfx/image/image_skia.h"
  13 #include "ui/gfx/rect.h"
  14 #include "ui/gfx/size.h"
  15
  16 namespace content {
  17
  18 ImageWindowDelegate::ImageWindowDelegate()
  19     : size_mismatch_(false) {
  20 }
  21
  22 ImageWindowDelegate::~ImageWindowDelegate() {
  23 }
  24
  25 void ImageWindowDelegate::SetImage(const gfx::Image& image) {
  26   image_ = image;
  27   if (!window_size_.IsEmpty() && !image_.IsEmpty())
  28     size_mismatch_ = window_size_ != image_.AsImageSkia().size();
  29 }
  30
  31 gfx::Size ImageWindowDelegate::GetMinimumSize() const {
  32   return gfx::Size();
  33 }
  34
  35 gfx::Size ImageWindowDelegate::GetMaximumSize() const {
  36   return gfx::Size();
  37 }
  38
  39 void ImageWindowDelegate::OnBoundsChanged(const gfx::Rect& old_bounds,
  40                                           const gfx::Rect& new_bounds) {
  41   window_size_ = new_bounds.size();
  42   if (!image_.IsEmpty())
  43     size_mismatch_ = window_size_ != image_.AsImageSkia().size();
  44 }
  45
  46 gfx::NativeCursor ImageWindowDelegate::GetCursor(const gfx::Point& point) {
  47   return gfx::kNullCursor;
  48 }
  49
  50 int ImageWindowDelegate::GetNonClientComponent(const gfx::Point& point) const {
  51   return HTNOWHERE;
  52 }
  53
  54 bool ImageWindowDelegate::ShouldDescendIntoChildForEventHandling(
  55     aura::Window* child,
  56     const gfx::Point& location) {
  57   return false;
  58 }
  59
  60 bool ImageWindowDelegate::CanFocus() {
  61   return false;
  62 }
  63
  64 void ImageWindowDelegate::OnCaptureLost() {
  65 }
  66
  67 void ImageWindowDelegate::OnPaint(gfx::Canvas* canvas) {
  68   if (image_.IsEmpty()) {
  69     canvas->DrawColor(SK_ColorWHITE);
  70   } else {
  71     if (size_mismatch_)
  72       canvas->DrawColor(SK_ColorWHITE);
  73     canvas->DrawImageInt(image_.AsImageSkia(), 0, 0);
  74   }
  75 }
  76
  77 void ImageWindowDelegate::OnDeviceScaleFactorChanged(float scale_factor) {
  78 }
  79
  80 void ImageWindowDelegate::OnWindowDestroying(aura::Window* window) {
  81 }
  82
  83 void ImageWindowDelegate::OnWindowDestroyed(aura::Window* window) {
  84   delete this;
  85 }
  86
  87 void ImageWindowDelegate::OnWindowTargetVisibilityChanged(bool visible) {
  88 }
  89
  90 bool ImageWindowDelegate::HasHitTestMask() const {
  91   return false;
  92 }
  93
  94 void ImageWindowDelegate::GetHitTestMask(gfx::Path* mask) const {
  95 }
  96
  97 }  // namespace content