ui/native_theme/common_theme.cc

   1 // Copyright (c) 2012 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 "ui/native_theme/common_theme.h"
   6
   7 #include "base/logging.h"
   8 #include "third_party/skia/include/core/SkCanvas.h"
   9 #include "ui/base/resource/resource_bundle.h"
  10 #include "ui/gfx/canvas.h"
  11 #include "ui/gfx/color_utils.h"
  12 #include "ui/gfx/geometry/rect.h"
  13 #include "ui/gfx/image/image_skia.h"
  14 #include "ui/gfx/skia_util.h"
  15 #include "ui/gfx/sys_color_change_listener.h"
  16 #include "ui/resources/grit/ui_resources.h"
  17
  18 namespace {
  19
  20 // Theme colors returned by GetSystemColor().
  21
  22 // MenuItem:
  23 const SkColor kMenuBackgroundColor = SK_ColorWHITE;
  24 const SkColor kMenuHighlightBackgroundColor = SkColorSetRGB(0x42, 0x81, 0xF4);
  25 const SkColor kMenuInvertedSchemeHighlightBackgroundColor =
  26     SkColorSetRGB(48, 48, 48);
  27 const SkColor kMenuBorderColor = SkColorSetRGB(0xBA, 0xBA, 0xBA);
  28 const SkColor kEnabledMenuButtonBorderColor = SkColorSetARGB(36, 0, 0, 0);
  29 const SkColor kFocusedMenuButtonBorderColor = SkColorSetARGB(72, 0, 0, 0);
  30 const SkColor kHoverMenuButtonBorderColor = SkColorSetARGB(72, 0, 0, 0);
  31 const SkColor kMenuSeparatorColor = SkColorSetRGB(0xE9, 0xE9, 0xE9);
  32 const SkColor kEnabledMenuItemForegroundColor = SK_ColorBLACK;
  33 const SkColor kDisabledMenuItemForegroundColor = SkColorSetRGB(161, 161, 146);
  34 const SkColor kHoverMenuItemBackgroundColor =
  35     SkColorSetARGB(204, 255, 255, 255);
  36 // Button:
  37 const SkColor kButtonHoverBackgroundColor = SkColorSetRGB(0xEA, 0xEA, 0xEA);
  38 const SkColor kBlueButtonEnabledColor = SK_ColorWHITE;
  39 const SkColor kBlueButtonDisabledColor = SK_ColorWHITE;
  40 const SkColor kBlueButtonPressedColor = SK_ColorWHITE;
  41 const SkColor kBlueButtonHoverColor = SK_ColorWHITE;
  42 const SkColor kBlueButtonShadowColor = SkColorSetRGB(0x53, 0x8C, 0xEA);
  43 // Material spinner/throbber:
  44 const SkColor kThrobberSpinningColor = SkColorSetRGB(0x42, 0x81, 0xF4);
  45 const SkColor kThrobberWaitingColor = SkColorSetRGB(0xA6, 0xA6, 0xA6);
  46 const SkColor kThrobberLightColor = SkColorSetRGB(0xF4, 0xF8, 0xFD);
  47
  48 }  // namespace
  49
  50 namespace ui {
  51
  52 bool CommonThemeGetSystemColor(NativeTheme::ColorId color_id, SkColor* color) {
  53   switch (color_id) {
  54     // MenuItem
  55     case NativeTheme::kColorId_MenuBorderColor:
  56       *color = kMenuBorderColor;
  57       break;
  58     case NativeTheme::kColorId_EnabledMenuButtonBorderColor:
  59       *color = kEnabledMenuButtonBorderColor;
  60       break;
  61     case NativeTheme::kColorId_FocusedMenuButtonBorderColor:
  62       *color = kFocusedMenuButtonBorderColor;
  63       break;
  64     case NativeTheme::kColorId_HoverMenuButtonBorderColor:
  65       *color = kHoverMenuButtonBorderColor;
  66       break;
  67     case NativeTheme::kColorId_MenuSeparatorColor:
  68       *color = kMenuSeparatorColor;
  69       break;
  70     case NativeTheme::kColorId_MenuBackgroundColor:
  71       *color = kMenuBackgroundColor;
  72       break;
  73     case NativeTheme::kColorId_FocusedMenuItemBackgroundColor:
  74       *color = kMenuHighlightBackgroundColor;
  75       break;
  76     case NativeTheme::kColorId_HoverMenuItemBackgroundColor:
  77       *color = kHoverMenuItemBackgroundColor;
  78       break;
  79     case NativeTheme::kColorId_EnabledMenuItemForegroundColor:
  80       *color = kEnabledMenuItemForegroundColor;
  81       break;
  82     case NativeTheme::kColorId_DisabledMenuItemForegroundColor:
  83       *color = kDisabledMenuItemForegroundColor;
  84       break;
  85     case NativeTheme::kColorId_DisabledEmphasizedMenuItemForegroundColor:
  86       *color = SK_ColorBLACK;
  87       break;
  88     case NativeTheme::kColorId_SelectedMenuItemForegroundColor:
  89       *color = SK_ColorWHITE;
  90       break;
  91     case NativeTheme::kColorId_ButtonDisabledColor:
  92       *color = kDisabledMenuItemForegroundColor;
  93       break;
  94     // Button
  95     case NativeTheme::kColorId_ButtonHoverBackgroundColor:
  96       *color = kButtonHoverBackgroundColor;
  97       break;
  98     case NativeTheme::kColorId_BlueButtonEnabledColor:
  99       *color = kBlueButtonEnabledColor;
 100       break;
 101     case NativeTheme::kColorId_BlueButtonDisabledColor:
 102       *color = kBlueButtonDisabledColor;
 103       break;
 104     case NativeTheme::kColorId_BlueButtonPressedColor:
 105       *color = kBlueButtonPressedColor;
 106       break;
 107     case NativeTheme::kColorId_BlueButtonHoverColor:
 108       *color = kBlueButtonHoverColor;
 109       break;
 110     case NativeTheme::kColorId_BlueButtonShadowColor:
 111       *color = kBlueButtonShadowColor;
 112       break;
 113     // Material spinner/throbber
 114     case NativeTheme::kColorId_ThrobberSpinningColor:
 115       *color = kThrobberSpinningColor;
 116       break;
 117     case NativeTheme::kColorId_ThrobberWaitingColor:
 118       *color = kThrobberWaitingColor;
 119       break;
 120     case NativeTheme::kColorId_ThrobberLightColor:
 121       *color = kThrobberLightColor;
 122       break;
 123     default:
 124       return false;
 125   }
 126
 127   if (gfx::IsInvertedColorScheme()) {
 128     switch (color_id) {
 129       case NativeTheme::kColorId_FocusedMenuItemBackgroundColor:
 130         *color = kMenuInvertedSchemeHighlightBackgroundColor;
 131         break;
 132       default:
 133         *color = color_utils::InvertColor(*color);
 134     }
 135   }
 136   return true;
 137 }
 138
 139 gfx::Size CommonThemeGetPartSize(NativeTheme::Part part,
 140                                  NativeTheme::State state,
 141                                  const NativeTheme::ExtraParams& extra) {
 142   gfx::Size size;
 143   switch (part) {
 144     case NativeTheme::kComboboxArrow:
 145       return ui::ResourceBundle::GetSharedInstance().GetImageNamed(
 146           IDR_MENU_DROPARROW).Size();
 147
 148     case NativeTheme::kMenuCheck: {
 149       const gfx::ImageSkia* check =
 150           ui::ResourceBundle::GetSharedInstance().GetImageNamed(
 151               IDR_MENU_CHECK_CHECKED).ToImageSkia();
 152       size.SetSize(check->width(), check->height());
 153       break;
 154     }
 155     default:
 156       break;
 157   }
 158
 159   return size;
 160 }
 161
 162 void CommonThemePaintComboboxArrow(SkCanvas* canvas, const gfx::Rect& rect) {
 163   gfx::ImageSkia* arrow = ui::ResourceBundle::GetSharedInstance().
 164       GetImageSkiaNamed(IDR_MENU_DROPARROW);
 165   CommonThemeCreateCanvas(canvas)->DrawImageInt(*arrow, rect.x(), rect.y());
 166 }
 167
 168 void CommonThemePaintMenuSeparator(SkCanvas* canvas, const gfx::Rect& rect) {
 169   SkColor color;
 170   CommonThemeGetSystemColor(NativeTheme::kColorId_MenuSeparatorColor, &color);
 171   SkPaint paint;
 172   paint.setColor(kMenuSeparatorColor);
 173   int position_y = rect.y() + rect.height() / 2;
 174   canvas->drawLine(rect.x(), position_y, rect.right(), position_y, paint);
 175 }
 176
 177 void CommonThemePaintMenuGutter(SkCanvas* canvas, const gfx::Rect& rect) {
 178   SkColor color;
 179   CommonThemeGetSystemColor(NativeTheme::kColorId_MenuSeparatorColor, &color);
 180   SkPaint paint;
 181   paint.setColor(kMenuSeparatorColor);
 182   int position_x = rect.x() + rect.width() / 2;
 183   canvas->drawLine(position_x, rect.y(), position_x, rect.bottom(), paint);
 184 }
 185
 186 void CommonThemePaintMenuBackground(SkCanvas* canvas, const gfx::Rect& rect) {
 187   SkColor color;
 188   CommonThemeGetSystemColor(NativeTheme::kColorId_MenuBackgroundColor, &color);
 189   SkPaint paint;
 190   paint.setColor(color);
 191   canvas->drawRect(gfx::RectToSkRect(rect), paint);
 192 }
 193
 194 void CommonThemePaintMenuItemBackground(SkCanvas* canvas,
 195                                         NativeTheme::State state,
 196                                         const gfx::Rect& rect) {
 197   SkColor color;
 198   SkPaint paint;
 199   switch (state) {
 200     case NativeTheme::kNormal:
 201     case NativeTheme::kDisabled:
 202       CommonThemeGetSystemColor(NativeTheme::kColorId_MenuBackgroundColor,
 203                                 &color);
 204       paint.setColor(color);
 205       break;
 206     case NativeTheme::kHovered:
 207       CommonThemeGetSystemColor(
 208           NativeTheme::kColorId_FocusedMenuItemBackgroundColor, &color);
 209       paint.setColor(color);
 210       break;
 211     default:
 212       NOTREACHED() << "Invalid state " << state;
 213       break;
 214   }
 215   canvas->drawRect(gfx::RectToSkRect(rect), paint);
 216 }
 217
 218 // static
 219 scoped_ptr<gfx::Canvas> CommonThemeCreateCanvas(SkCanvas* sk_canvas) {
 220   // TODO(pkotwicz): Do something better and don't infer device
 221   // scale factor from canvas scale.
 222   SkMatrix m = sk_canvas->getTotalMatrix();
 223   float device_scale = static_cast<float>(SkScalarAbs(m.getScaleX()));
 224   return make_scoped_ptr(new gfx::Canvas(sk_canvas, device_scale));
 225 }
 226
 227 }  // namespace ui