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 colors:
  43 const SkColor kAmber = SkColorSetRGB(0xFF, 0xC1, 0x07);
  44 const SkColor kGoogleBlue = SkColorSetRGB(0x42, 0x85, 0xF4);
  45 const SkColor kChromeIconGrey = SkColorSetRGB(0x5A, 0x5A, 0x5A);
  46 // Material spinner/throbber:
  47 const SkColor kThrobberWaitingColor = SkColorSetRGB(0xA6, 0xA6, 0xA6);
  48 const SkColor kThrobberLightColor = SkColorSetRGB(0xF4, 0xF8, 0xFD);
  49
  50 }  // namespace
  51
  52 namespace ui {
  53
  54 bool CommonThemeGetSystemColor(NativeTheme::ColorId color_id, SkColor* color) {
  55   switch (color_id) {
  56     // MenuItem
  57     case NativeTheme::kColorId_MenuBorderColor:
  58       *color = kMenuBorderColor;
  59       break;
  60     case NativeTheme::kColorId_EnabledMenuButtonBorderColor:
  61       *color = kEnabledMenuButtonBorderColor;
  62       break;
  63     case NativeTheme::kColorId_FocusedMenuButtonBorderColor:
  64       *color = kFocusedMenuButtonBorderColor;
  65       break;
  66     case NativeTheme::kColorId_HoverMenuButtonBorderColor:
  67       *color = kHoverMenuButtonBorderColor;
  68       break;
  69     case NativeTheme::kColorId_MenuSeparatorColor:
  70       *color = kMenuSeparatorColor;
  71       break;
  72     case NativeTheme::kColorId_MenuBackgroundColor:
  73       *color = kMenuBackgroundColor;
  74       break;
  75     case NativeTheme::kColorId_FocusedMenuItemBackgroundColor:
  76       *color = kMenuHighlightBackgroundColor;
  77       break;
  78     case NativeTheme::kColorId_HoverMenuItemBackgroundColor:
  79       *color = kHoverMenuItemBackgroundColor;
  80       break;
  81     case NativeTheme::kColorId_EnabledMenuItemForegroundColor:
  82       *color = kEnabledMenuItemForegroundColor;
  83       break;
  84     case NativeTheme::kColorId_DisabledMenuItemForegroundColor:
  85       *color = kDisabledMenuItemForegroundColor;
  86       break;
  87     case NativeTheme::kColorId_DisabledEmphasizedMenuItemForegroundColor:
  88       *color = SK_ColorBLACK;
  89       break;
  90     case NativeTheme::kColorId_SelectedMenuItemForegroundColor:
  91       *color = SK_ColorWHITE;
  92       break;
  93     case NativeTheme::kColorId_ButtonDisabledColor:
  94       *color = kDisabledMenuItemForegroundColor;
  95       break;
  96     // Button
  97     case NativeTheme::kColorId_ButtonHoverBackgroundColor:
  98       *color = kButtonHoverBackgroundColor;
  99       break;
 100     case NativeTheme::kColorId_BlueButtonEnabledColor:
 101       *color = kBlueButtonEnabledColor;
 102       break;
 103     case NativeTheme::kColorId_BlueButtonDisabledColor:
 104       *color = kBlueButtonDisabledColor;
 105       break;
 106     case NativeTheme::kColorId_BlueButtonPressedColor:
 107       *color = kBlueButtonPressedColor;
 108       break;
 109     case NativeTheme::kColorId_BlueButtonHoverColor:
 110       *color = kBlueButtonHoverColor;
 111       break;
 112     case NativeTheme::kColorId_BlueButtonShadowColor:
 113       *color = kBlueButtonShadowColor;
 114       break;
 115     // Material icons
 116     case NativeTheme::kColorId_Amber:
 117       *color = kAmber;
 118       break;
 119     case NativeTheme::kColorId_ChromeIconGrey:
 120       *color = kChromeIconGrey;
 121       break;
 122     case NativeTheme::kColorId_GoogleBlue:
 123       *color = kGoogleBlue;
 124       break;
 125     // Material spinner/throbber
 126     case NativeTheme::kColorId_ThrobberSpinningColor:
 127       *color = kGoogleBlue;
 128       break;
 129     case NativeTheme::kColorId_ThrobberWaitingColor:
 130       *color = kThrobberWaitingColor;
 131       break;
 132     case NativeTheme::kColorId_ThrobberLightColor:
 133       *color = kThrobberLightColor;
 134       break;
 135     default:
 136       return false;
 137   }
 138
 139   if (color_utils::IsInvertedColorScheme()) {
 140     switch (color_id) {
 141       case NativeTheme::kColorId_FocusedMenuItemBackgroundColor:
 142         *color = kMenuInvertedSchemeHighlightBackgroundColor;
 143         break;
 144       default:
 145         *color = color_utils::InvertColor(*color);
 146     }
 147   }
 148   return true;
 149 }
 150
 151 gfx::Size CommonThemeGetPartSize(NativeTheme::Part part,
 152                                  NativeTheme::State state,
 153                                  const NativeTheme::ExtraParams& extra) {
 154   gfx::Size size;
 155   switch (part) {
 156     case NativeTheme::kComboboxArrow:
 157       return ui::ResourceBundle::GetSharedInstance().GetImageNamed(
 158           IDR_MENU_DROPARROW).Size();
 159
 160     case NativeTheme::kMenuCheck: {
 161       const gfx::ImageSkia* check =
 162           ui::ResourceBundle::GetSharedInstance().GetImageNamed(
 163               IDR_MENU_CHECK_CHECKED).ToImageSkia();
 164       size.SetSize(check->width(), check->height());
 165       break;
 166     }
 167     default:
 168       break;
 169   }
 170
 171   return size;
 172 }
 173
 174 void CommonThemePaintComboboxArrow(SkCanvas* canvas, const gfx::Rect& rect) {
 175   gfx::ImageSkia* arrow = ui::ResourceBundle::GetSharedInstance().
 176       GetImageSkiaNamed(IDR_MENU_DROPARROW);
 177   CommonThemeCreateCanvas(canvas)->DrawImageInt(*arrow, rect.x(), rect.y());
 178 }
 179
 180 void CommonThemePaintMenuSeparator(SkCanvas* canvas, const gfx::Rect& rect) {
 181   SkColor color;
 182   CommonThemeGetSystemColor(NativeTheme::kColorId_MenuSeparatorColor, &color);
 183   SkPaint paint;
 184   paint.setColor(kMenuSeparatorColor);
 185   int position_y = rect.y() + rect.height() / 2;
 186   canvas->drawLine(rect.x(), position_y, rect.right(), position_y, paint);
 187 }
 188
 189 void CommonThemePaintMenuGutter(SkCanvas* canvas, const gfx::Rect& rect) {
 190   SkColor color;
 191   CommonThemeGetSystemColor(NativeTheme::kColorId_MenuSeparatorColor, &color);
 192   SkPaint paint;
 193   paint.setColor(kMenuSeparatorColor);
 194   int position_x = rect.x() + rect.width() / 2;
 195   canvas->drawLine(position_x, rect.y(), position_x, rect.bottom(), paint);
 196 }
 197
 198 void CommonThemePaintMenuBackground(SkCanvas* canvas, const gfx::Rect& rect) {
 199   SkColor color;
 200   CommonThemeGetSystemColor(NativeTheme::kColorId_MenuBackgroundColor, &color);
 201   SkPaint paint;
 202   paint.setColor(color);
 203   canvas->drawRect(gfx::RectToSkRect(rect), paint);
 204 }
 205
 206 void CommonThemePaintMenuItemBackground(SkCanvas* canvas,
 207                                         NativeTheme::State state,
 208                                         const gfx::Rect& rect) {
 209   SkColor color;
 210   SkPaint paint;
 211   switch (state) {
 212     case NativeTheme::kNormal:
 213     case NativeTheme::kDisabled:
 214       CommonThemeGetSystemColor(NativeTheme::kColorId_MenuBackgroundColor,
 215                                 &color);
 216       paint.setColor(color);
 217       break;
 218     case NativeTheme::kHovered:
 219       CommonThemeGetSystemColor(
 220           NativeTheme::kColorId_FocusedMenuItemBackgroundColor, &color);
 221       paint.setColor(color);
 222       break;
 223     default:
 224       NOTREACHED() << "Invalid state " << state;
 225       break;
 226   }
 227   canvas->drawRect(gfx::RectToSkRect(rect), paint);
 228 }
 229
 230 // static
 231 scoped_ptr<gfx::Canvas> CommonThemeCreateCanvas(SkCanvas* sk_canvas) {
 232   // TODO(pkotwicz): Do something better and don't infer device
 233   // scale factor from canvas scale.
 234   SkMatrix m = sk_canvas->getTotalMatrix();
 235   float device_scale = static_cast<float>(SkScalarAbs(m.getScaleX()));
 236   return make_scoped_ptr(new gfx::Canvas(sk_canvas, device_scale));
 237 }
 238
 239 }  // namespace ui