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| 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 #ifndef UI_NATIVE_THEME_NATIVE_THEME_WIN_H_ | |
| 6 #define UI_NATIVE_THEME_NATIVE_THEME_WIN_H_ | |
| 7 | |
| 8 // A wrapper class for working with custom XP/Vista themes provided in | |
| 9 // uxtheme.dll. This is a singleton class that can be grabbed using | |
| 10 // NativeThemeWin::instance(). | |
| 11 // For more information on visual style parts and states, see: | |
| 12 // http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/plat
form/commctls/userex/topics/partsandstates.asp | |
| 13 | |
| 14 #include <map> | |
| 15 | |
| 16 #include <windows.h> | |
| 17 #include <uxtheme.h> | |
| 18 | |
| 19 #include "base/basictypes.h" | |
| 20 #include "base/compiler_specific.h" | |
| 21 #include "third_party/skia/include/core/SkColor.h" | |
| 22 #include "ui/gfx/size.h" | |
| 23 #include "ui/gfx/sys_color_change_listener.h" | |
| 24 #include "ui/native_theme/native_theme.h" | |
| 25 | |
| 26 class SkCanvas; | |
| 27 | |
| 28 namespace ui { | |
| 29 | |
| 30 // Windows implementation of native theme class. | |
| 31 // | |
| 32 // At the moment, this class in in transition from an older API that consists | |
| 33 // of several PaintXXX methods to an API, inherited from the NativeTheme base | |
| 34 // class, that consists of a single Paint() method with a argument to indicate | |
| 35 // what kind of part to paint. | |
| 36 class NATIVE_THEME_EXPORT NativeThemeWin : public NativeTheme, | |
| 37 public gfx::SysColorChangeListener { | |
| 38 public: | |
| 39 enum ThemeName { | |
| 40 BUTTON, | |
| 41 LIST, | |
| 42 MENU, | |
| 43 MENULIST, | |
| 44 SCROLLBAR, | |
| 45 STATUS, | |
| 46 TAB, | |
| 47 TEXTFIELD, | |
| 48 TRACKBAR, | |
| 49 WINDOW, | |
| 50 PROGRESS, | |
| 51 SPIN, | |
| 52 LAST | |
| 53 }; | |
| 54 | |
| 55 bool IsThemingActive() const; | |
| 56 | |
| 57 // Returns true if a high contrast theme is being used. | |
| 58 bool IsUsingHighContrastTheme() const; | |
| 59 | |
| 60 HRESULT GetThemeColor(ThemeName theme, | |
| 61 int part_id, | |
| 62 int state_id, | |
| 63 int prop_id, | |
| 64 SkColor* color) const; | |
| 65 | |
| 66 // Get the theme color if theming is enabled. If theming is unsupported | |
| 67 // for this part, use Win32's GetSysColor to find the color specified | |
| 68 // by default_sys_color. | |
| 69 SkColor GetThemeColorWithDefault(ThemeName theme, | |
| 70 int part_id, | |
| 71 int state_id, | |
| 72 int prop_id, | |
| 73 int default_sys_color) const; | |
| 74 | |
| 75 // Get the thickness of the border associated with the specified theme, | |
| 76 // defaulting to GetSystemMetrics edge size if themes are disabled. | |
| 77 // In Classic Windows, borders are typically 2px; on XP+, they are 1px. | |
| 78 gfx::Size GetThemeBorderSize(ThemeName theme) const; | |
| 79 | |
| 80 // Disables all theming for top-level windows in the entire process, from | |
| 81 // when this method is called until the process exits. All the other | |
| 82 // methods in this class will continue to work, but their output will ignore | |
| 83 // the user's theme. This is meant for use when running tests that require | |
| 84 // consistent visual results. | |
| 85 void DisableTheming() const; | |
| 86 | |
| 87 // Closes cached theme handles so we can unload the DLL or update our UI | |
| 88 // for a theme change. | |
| 89 void CloseHandles() const; | |
| 90 | |
| 91 // Returns true if classic theme is in use. | |
| 92 bool IsClassicTheme(ThemeName name) const; | |
| 93 | |
| 94 // Gets our singleton instance. | |
| 95 static NativeThemeWin* instance(); | |
| 96 | |
| 97 HRESULT PaintTextField(HDC hdc, | |
| 98 int part_id, | |
| 99 int state_id, | |
| 100 int classic_state, | |
| 101 RECT* rect, | |
| 102 COLORREF color, | |
| 103 bool fill_content_area, | |
| 104 bool draw_edges) const; | |
| 105 | |
| 106 // NativeTheme implementation: | |
| 107 virtual gfx::Size GetPartSize(Part part, | |
| 108 State state, | |
| 109 const ExtraParams& extra) const override; | |
| 110 virtual void Paint(SkCanvas* canvas, | |
| 111 Part part, | |
| 112 State state, | |
| 113 const gfx::Rect& rect, | |
| 114 const ExtraParams& extra) const override; | |
| 115 virtual SkColor GetSystemColor(ColorId color_id) const override; | |
| 116 | |
| 117 private: | |
| 118 NativeThemeWin(); | |
| 119 ~NativeThemeWin(); | |
| 120 | |
| 121 // gfx::SysColorChangeListener implementation: | |
| 122 virtual void OnSysColorChange() override; | |
| 123 | |
| 124 // Update the locally cached set of system colors. | |
| 125 void UpdateSystemColors(); | |
| 126 | |
| 127 // Paint directly to canvas' HDC. | |
| 128 void PaintDirect(SkCanvas* canvas, | |
| 129 Part part, | |
| 130 State state, | |
| 131 const gfx::Rect& rect, | |
| 132 const ExtraParams& extra) const; | |
| 133 | |
| 134 // Create a temporary HDC, paint to that, clean up the alpha values in the | |
| 135 // temporary HDC, and then blit the result to canvas. This is to work around | |
| 136 // the fact that Windows XP and some classic themes give bogus alpha values. | |
| 137 void PaintIndirect(SkCanvas* canvas, | |
| 138 Part part, | |
| 139 State state, | |
| 140 const gfx::Rect& rect, | |
| 141 const ExtraParams& extra) const; | |
| 142 | |
| 143 HRESULT GetThemePartSize(ThemeName themeName, | |
| 144 HDC hdc, | |
| 145 int part_id, | |
| 146 int state_id, | |
| 147 RECT* rect, | |
| 148 int ts, | |
| 149 SIZE* size) const; | |
| 150 | |
| 151 HRESULT PaintButton(HDC hdc, | |
| 152 State state, | |
| 153 const ButtonExtraParams& extra, | |
| 154 int part_id, | |
| 155 int state_id, | |
| 156 RECT* rect) const; | |
| 157 | |
| 158 HRESULT PaintMenuSeparator(HDC hdc, | |
| 159 const gfx::Rect& rect) const; | |
| 160 | |
| 161 HRESULT PaintMenuGutter(HDC hdc, const gfx::Rect& rect) const; | |
| 162 | |
| 163 // |arrow_direction| determines whether the arrow is pointing to the left or | |
| 164 // to the right. In RTL locales, sub-menus open from right to left and | |
| 165 // therefore the menu arrow should point to the left and not to the right. | |
| 166 HRESULT PaintMenuArrow(HDC hdc, | |
| 167 State state, | |
| 168 const gfx::Rect& rect, | |
| 169 const MenuArrowExtraParams& extra) const; | |
| 170 | |
| 171 HRESULT PaintMenuBackground(HDC hdc, const gfx::Rect& rect) const; | |
| 172 | |
| 173 HRESULT PaintMenuCheck(HDC hdc, | |
| 174 State state, | |
| 175 const gfx::Rect& rect, | |
| 176 const MenuCheckExtraParams& extra) const; | |
| 177 | |
| 178 HRESULT PaintMenuCheckBackground(HDC hdc, | |
| 179 State state, | |
| 180 const gfx::Rect& rect) const; | |
| 181 | |
| 182 HRESULT PaintMenuItemBackground(HDC hdc, | |
| 183 State state, | |
| 184 const gfx::Rect& rect, | |
| 185 const MenuItemExtraParams& extra) const; | |
| 186 | |
| 187 HRESULT PaintPushButton(HDC hdc, | |
| 188 Part part, | |
| 189 State state, | |
| 190 const gfx::Rect& rect, | |
| 191 const ButtonExtraParams& extra) const; | |
| 192 | |
| 193 HRESULT PaintRadioButton(HDC hdc, | |
| 194 Part part, | |
| 195 State state, | |
| 196 const gfx::Rect& rect, | |
| 197 const ButtonExtraParams& extra) const; | |
| 198 | |
| 199 HRESULT PaintCheckbox(HDC hdc, | |
| 200 Part part, | |
| 201 State state, | |
| 202 const gfx::Rect& rect, | |
| 203 const ButtonExtraParams& extra) const; | |
| 204 | |
| 205 HRESULT PaintMenuList(HDC hdc, | |
| 206 State state, | |
| 207 const gfx::Rect& rect, | |
| 208 const MenuListExtraParams& extra) const; | |
| 209 | |
| 210 // Paints a scrollbar arrow. |classic_state| should have the appropriate | |
| 211 // classic part number ORed in already. | |
| 212 HRESULT PaintScrollbarArrow(HDC hdc, | |
| 213 Part part, | |
| 214 State state, | |
| 215 const gfx::Rect& rect, | |
| 216 const ScrollbarArrowExtraParams& extra) const; | |
| 217 | |
| 218 HRESULT PaintScrollbarThumb(HDC hdc, | |
| 219 Part part, | |
| 220 State state, | |
| 221 const gfx::Rect& rect, | |
| 222 const ScrollbarThumbExtraParams& extra) const; | |
| 223 | |
| 224 // This method is deprecated and will be removed in the near future. | |
| 225 // Paints a scrollbar track section. |align_rect| is only used in classic | |
| 226 // mode, and makes sure the checkerboard pattern in |target_rect| is aligned | |
| 227 // with one presumed to be in |align_rect|. | |
| 228 HRESULT PaintScrollbarTrack(SkCanvas* canvas, | |
| 229 HDC hdc, | |
| 230 Part part, | |
| 231 State state, | |
| 232 const gfx::Rect& rect, | |
| 233 const ScrollbarTrackExtraParams& extra) const; | |
| 234 | |
| 235 HRESULT PaintSpinButton(HDC hdc, | |
| 236 Part part, | |
| 237 State state, | |
| 238 const gfx::Rect& rect, | |
| 239 const InnerSpinButtonExtraParams& extra) const; | |
| 240 | |
| 241 HRESULT PaintTrackbar(SkCanvas* canvas, | |
| 242 HDC hdc, | |
| 243 Part part, | |
| 244 State state, | |
| 245 const gfx::Rect& rect, | |
| 246 const TrackbarExtraParams& extra) const; | |
| 247 | |
| 248 HRESULT PaintProgressBar(HDC hdc, | |
| 249 const gfx::Rect& rect, | |
| 250 const ProgressBarExtraParams& extra) const; | |
| 251 | |
| 252 HRESULT PaintWindowResizeGripper(HDC hdc, const gfx::Rect& rect) const; | |
| 253 | |
| 254 HRESULT PaintTabPanelBackground(HDC hdc, const gfx::Rect& rect) const; | |
| 255 | |
| 256 HRESULT PaintTextField(HDC hdc, | |
| 257 Part part, | |
| 258 State state, | |
| 259 const gfx::Rect& rect, | |
| 260 const TextFieldExtraParams& extra) const; | |
| 261 | |
| 262 // Paints a theme part, with support for scene scaling in high-DPI mode. | |
| 263 // |theme| is the theme handle. |hdc| is the handle for the device context. | |
| 264 // |part_id| is the identifier for the part (e.g. thumb gripper). |state_id| | |
| 265 // is the identifier for the rendering state of the part (e.g. hover). |rect| | |
| 266 // is the bounds for rendering, expressed in logical coordinates. | |
| 267 HRESULT PaintScaledTheme(HANDLE theme, | |
| 268 HDC hdc, | |
| 269 int part_id, | |
| 270 int state_id, | |
| 271 const gfx::Rect& rect) const; | |
| 272 | |
| 273 // Get the windows theme name/part/state. These three helper functions are | |
| 274 // used only by GetPartSize(), as each of the corresponding PaintXXX() | |
| 275 // methods do further validation of the part and state that is required for | |
| 276 // getting the size. | |
| 277 static ThemeName GetThemeName(Part part); | |
| 278 static int GetWindowsPart(Part part, State state, const ExtraParams& extra); | |
| 279 static int GetWindowsState(Part part, State state, const ExtraParams& extra); | |
| 280 | |
| 281 HRESULT GetThemeInt(ThemeName theme, | |
| 282 int part_id, | |
| 283 int state_id, | |
| 284 int prop_id, | |
| 285 int *result) const; | |
| 286 | |
| 287 HRESULT PaintFrameControl(HDC hdc, | |
| 288 const gfx::Rect& rect, | |
| 289 UINT type, | |
| 290 UINT state, | |
| 291 bool is_selected, | |
| 292 State control_state) const; | |
| 293 | |
| 294 // Returns a handle to the theme data. | |
| 295 HANDLE GetThemeHandle(ThemeName theme_name) const; | |
| 296 | |
| 297 typedef HRESULT (WINAPI* DrawThemeBackgroundPtr)(HANDLE theme, | |
| 298 HDC hdc, | |
| 299 int part_id, | |
| 300 int state_id, | |
| 301 const RECT* rect, | |
| 302 const RECT* clip_rect); | |
| 303 typedef HRESULT (WINAPI* DrawThemeBackgroundExPtr)(HANDLE theme, | |
| 304 HDC hdc, | |
| 305 int part_id, | |
| 306 int state_id, | |
| 307 const RECT* rect, | |
| 308 const DTBGOPTS* opts); | |
| 309 typedef HRESULT (WINAPI* GetThemeColorPtr)(HANDLE hTheme, | |
| 310 int part_id, | |
| 311 int state_id, | |
| 312 int prop_id, | |
| 313 COLORREF* color); | |
| 314 typedef HRESULT (WINAPI* GetThemeContentRectPtr)(HANDLE hTheme, | |
| 315 HDC hdc, | |
| 316 int part_id, | |
| 317 int state_id, | |
| 318 const RECT* rect, | |
| 319 RECT* content_rect); | |
| 320 typedef HRESULT (WINAPI* GetThemePartSizePtr)(HANDLE hTheme, | |
| 321 HDC hdc, | |
| 322 int part_id, | |
| 323 int state_id, | |
| 324 RECT* rect, | |
| 325 int ts, | |
| 326 SIZE* size); | |
| 327 typedef HANDLE (WINAPI* OpenThemeDataPtr)(HWND window, | |
| 328 LPCWSTR class_list); | |
| 329 typedef HRESULT (WINAPI* CloseThemeDataPtr)(HANDLE theme); | |
| 330 | |
| 331 typedef void (WINAPI* SetThemeAppPropertiesPtr) (DWORD flags); | |
| 332 typedef BOOL (WINAPI* IsThemeActivePtr)(); | |
| 333 typedef HRESULT (WINAPI* GetThemeIntPtr)(HANDLE hTheme, | |
| 334 int part_id, | |
| 335 int state_id, | |
| 336 int prop_id, | |
| 337 int *value); | |
| 338 | |
| 339 // Function pointers into uxtheme.dll. | |
| 340 DrawThemeBackgroundPtr draw_theme_; | |
| 341 DrawThemeBackgroundExPtr draw_theme_ex_; | |
| 342 GetThemeColorPtr get_theme_color_; | |
| 343 GetThemeContentRectPtr get_theme_content_rect_; | |
| 344 GetThemePartSizePtr get_theme_part_size_; | |
| 345 OpenThemeDataPtr open_theme_; | |
| 346 CloseThemeDataPtr close_theme_; | |
| 347 SetThemeAppPropertiesPtr set_theme_properties_; | |
| 348 IsThemeActivePtr is_theme_active_; | |
| 349 GetThemeIntPtr get_theme_int_; | |
| 350 | |
| 351 // Handle to uxtheme.dll. | |
| 352 HMODULE theme_dll_; | |
| 353 | |
| 354 // A cache of open theme handles. | |
| 355 mutable HANDLE theme_handles_[LAST]; | |
| 356 | |
| 357 // The system color change listener and the updated cache of system colors. | |
| 358 gfx::ScopedSysColorChangeListener color_change_listener_; | |
| 359 mutable std::map<int, SkColor> system_colors_; | |
| 360 | |
| 361 // Is a high contrast theme active? | |
| 362 mutable bool is_using_high_contrast_; | |
| 363 | |
| 364 // Is |is_using_high_contrast_| valid? | |
| 365 mutable bool is_using_high_contrast_valid_; | |
| 366 | |
| 367 DISALLOW_COPY_AND_ASSIGN(NativeThemeWin); | |
| 368 }; | |
| 369 | |
| 370 } // namespace ui | |
| 371 | |
| 372 #endif // UI_NATIVE_THEME_NATIVE_THEME_WIN_H_ | |
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