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