content/child/webthemeengine_impl_android.cc

   1 // Copyright 2014 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/child/webthemeengine_impl_android.h"
   6
   7 #include "base/logging.h"
   8 #include "skia/ext/platform_canvas.h"
   9 #include "third_party/WebKit/public/platform/WebRect.h"
  10 #include "third_party/WebKit/public/platform/WebSize.h"
  11 #include "ui/native_theme/native_theme.h"
  12
  13 using blink::WebCanvas;
  14 using blink::WebColor;
  15 using blink::WebRect;
  16 using blink::WebThemeEngine;
  17
  18 namespace content {
  19
  20 static ui::NativeTheme::Part NativeThemePart(
  21     WebThemeEngine::Part part) {
  22   switch (part) {
  23     case WebThemeEngine::PartScrollbarDownArrow:
  24       return ui::NativeTheme::kScrollbarDownArrow;
  25     case WebThemeEngine::PartScrollbarLeftArrow:
  26       return ui::NativeTheme::kScrollbarLeftArrow;
  27     case WebThemeEngine::PartScrollbarRightArrow:
  28       return ui::NativeTheme::kScrollbarRightArrow;
  29     case WebThemeEngine::PartScrollbarUpArrow:
  30       return ui::NativeTheme::kScrollbarUpArrow;
  31     case WebThemeEngine::PartScrollbarHorizontalThumb:
  32     case WebThemeEngine::PartScrollbarVerticalThumb:
  33     case WebThemeEngine::PartScrollbarHorizontalTrack:
  34     case WebThemeEngine::PartScrollbarVerticalTrack:
  35     case WebThemeEngine::PartScrollbarCorner:
  36       // Android doesn't draw scrollbars.
  37       NOTREACHED();
  38       return static_cast<ui::NativeTheme::Part>(0);
  39     case WebThemeEngine::PartCheckbox:
  40       return ui::NativeTheme::kCheckbox;
  41     case WebThemeEngine::PartRadio:
  42       return ui::NativeTheme::kRadio;
  43     case WebThemeEngine::PartButton:
  44       return ui::NativeTheme::kPushButton;
  45     case WebThemeEngine::PartTextField:
  46       return ui::NativeTheme::kTextField;
  47     case WebThemeEngine::PartMenuList:
  48       return ui::NativeTheme::kMenuList;
  49     case WebThemeEngine::PartSliderTrack:
  50       return ui::NativeTheme::kSliderTrack;
  51     case WebThemeEngine::PartSliderThumb:
  52       return ui::NativeTheme::kSliderThumb;
  53     case WebThemeEngine::PartInnerSpinButton:
  54       return ui::NativeTheme::kInnerSpinButton;
  55     case WebThemeEngine::PartProgressBar:
  56       return ui::NativeTheme::kProgressBar;
  57     default:
  58       return ui::NativeTheme::kScrollbarDownArrow;
  59   }
  60 }
  61
  62 static ui::NativeTheme::State NativeThemeState(
  63     WebThemeEngine::State state) {
  64   switch (state) {
  65     case WebThemeEngine::StateDisabled:
  66       return ui::NativeTheme::kDisabled;
  67     case WebThemeEngine::StateHover:
  68       return ui::NativeTheme::kHovered;
  69     case WebThemeEngine::StateNormal:
  70       return ui::NativeTheme::kNormal;
  71     case WebThemeEngine::StatePressed:
  72       return ui::NativeTheme::kPressed;
  73     default:
  74       return ui::NativeTheme::kDisabled;
  75   }
  76 }
  77
  78 static void GetNativeThemeExtraParams(
  79     WebThemeEngine::Part part,
  80     WebThemeEngine::State state,
  81     const WebThemeEngine::ExtraParams* extra_params,
  82     ui::NativeTheme::ExtraParams* native_theme_extra_params) {
  83   switch (part) {
  84     case WebThemeEngine::PartScrollbarHorizontalTrack:
  85     case WebThemeEngine::PartScrollbarVerticalTrack:
  86       // Android doesn't draw scrollbars.
  87       NOTREACHED();
  88       break;
  89     case WebThemeEngine::PartCheckbox:
  90       native_theme_extra_params->button.checked = extra_params->button.checked;
  91       native_theme_extra_params->button.indeterminate =
  92           extra_params->button.indeterminate;
  93       break;
  94     case WebThemeEngine::PartRadio:
  95       native_theme_extra_params->button.checked = extra_params->button.checked;
  96       break;
  97     case WebThemeEngine::PartButton:
  98       native_theme_extra_params->button.is_default =
  99           extra_params->button.isDefault;
 100       native_theme_extra_params->button.has_border =
 101           extra_params->button.hasBorder;
 102       // Native buttons have a different focus style.
 103       native_theme_extra_params->button.is_focused = false;
 104       native_theme_extra_params->button.background_color =
 105           extra_params->button.backgroundColor;
 106       break;
 107     case WebThemeEngine::PartTextField:
 108       native_theme_extra_params->text_field.is_text_area =
 109           extra_params->textField.isTextArea;
 110       native_theme_extra_params->text_field.is_listbox =
 111           extra_params->textField.isListbox;
 112       native_theme_extra_params->text_field.background_color =
 113           extra_params->textField.backgroundColor;
 114       break;
 115     case WebThemeEngine::PartMenuList:
 116       native_theme_extra_params->menu_list.has_border =
 117           extra_params->menuList.hasBorder;
 118       native_theme_extra_params->menu_list.has_border_radius =
 119           extra_params->menuList.hasBorderRadius;
 120       native_theme_extra_params->menu_list.arrow_x =
 121           extra_params->menuList.arrowX;
 122       native_theme_extra_params->menu_list.arrow_y =
 123           extra_params->menuList.arrowY;
 124       native_theme_extra_params->menu_list.background_color =
 125           extra_params->menuList.backgroundColor;
 126       break;
 127     case WebThemeEngine::PartSliderTrack:
 128     case WebThemeEngine::PartSliderThumb:
 129       native_theme_extra_params->slider.vertical =
 130           extra_params->slider.vertical;
 131       native_theme_extra_params->slider.in_drag = extra_params->slider.inDrag;
 132       break;
 133     case WebThemeEngine::PartInnerSpinButton:
 134       native_theme_extra_params->inner_spin.spin_up =
 135           extra_params->innerSpin.spinUp;
 136       native_theme_extra_params->inner_spin.read_only =
 137           extra_params->innerSpin.readOnly;
 138       break;
 139     case WebThemeEngine::PartProgressBar:
 140       native_theme_extra_params->progress_bar.determinate =
 141           extra_params->progressBar.determinate;
 142       native_theme_extra_params->progress_bar.value_rect_x =
 143           extra_params->progressBar.valueRectX;
 144       native_theme_extra_params->progress_bar.value_rect_y =
 145           extra_params->progressBar.valueRectY;
 146       native_theme_extra_params->progress_bar.value_rect_width =
 147           extra_params->progressBar.valueRectWidth;
 148       native_theme_extra_params->progress_bar.value_rect_height =
 149           extra_params->progressBar.valueRectHeight;
 150       break;
 151     default:
 152       break;  // Parts that have no extra params get here.
 153   }
 154 }
 155
 156 blink::WebSize WebThemeEngineImpl::getSize(WebThemeEngine::Part part) {
 157   ui::NativeTheme::ExtraParams extra;
 158   return ui::NativeTheme::instance()->GetPartSize(
 159       NativeThemePart(part), ui::NativeTheme::kNormal, extra);
 160 }
 161
 162 void WebThemeEngineImpl::paint(
 163     blink::WebCanvas* canvas,
 164     WebThemeEngine::Part part,
 165     WebThemeEngine::State state,
 166     const blink::WebRect& rect,
 167     const WebThemeEngine::ExtraParams* extra_params) {
 168   ui::NativeTheme::ExtraParams native_theme_extra_params;
 169   GetNativeThemeExtraParams(
 170       part, state, extra_params, &native_theme_extra_params);
 171   ui::NativeTheme::instance()->Paint(
 172       canvas,
 173       NativeThemePart(part),
 174       NativeThemeState(state),
 175       gfx::Rect(rect),
 176       native_theme_extra_params);
 177 }
 178 }  // namespace content