More Windows build fixes.

ui/native_theme/native_theme_win.h

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_NATIVE_THEME_NATIVE_THEME_WIN_H_
+#define UI_NATIVE_THEME_NATIVE_THEME_WIN_H_
+
+// A wrapper class for working with custom XP/Vista themes provided in
+// uxtheme.dll.  This is a singleton class that can be grabbed using
+// NativeThemeWin::instance().
+// For more information on visual style parts and states, see:
+// http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/userex/topics/partsandstates.asp
+
+#include <map>
+
+#include <windows.h>
+#include <uxtheme.h>
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "third_party/skia/include/core/SkColor.h"
+#include "ui/gfx/size.h"
+#include "ui/gfx/sys_color_change_listener.h"
+#include "ui/native_theme/native_theme.h"
+
+class SkCanvas;
+
+namespace ui {
+
+// Windows implementation of native theme class.
+//
+// At the moment, this class in in transition from an older API that consists
+// of several PaintXXX methods to an API, inherited from the NativeTheme base
+// class, that consists of a single Paint() method with a argument to indicate
+// what kind of part to paint.
+class NATIVE_THEME_EXPORT NativeThemeWin : public NativeTheme,
+                                           public gfx::SysColorChangeListener {
+ public:
+  enum ThemeName {
+    BUTTON,
+    LIST,
+    MENU,
+    MENULIST,
+    SCROLLBAR,
+    STATUS,
+    TAB,
+    TEXTFIELD,
+    TRACKBAR,
+    WINDOW,
+    PROGRESS,
+    SPIN,
+    LAST
+  };
+
+  bool IsThemingActive() const;
+
+  // Returns true if a high contrast theme is being used.
+  bool IsUsingHighContrastTheme() const;
+
+  HRESULT GetThemeColor(ThemeName theme,
+                        int part_id,
+                        int state_id,
+                        int prop_id,
+                        SkColor* color) const;
+
+  // Get the theme color if theming is enabled.  If theming is unsupported
+  // for this part, use Win32's GetSysColor to find the color specified
+  // by default_sys_color.
+  SkColor GetThemeColorWithDefault(ThemeName theme,
+                                   int part_id,
+                                   int state_id,
+                                   int prop_id,
+                                   int default_sys_color) const;
+
+  // Get the thickness of the border associated with the specified theme,
+  // defaulting to GetSystemMetrics edge size if themes are disabled.
+  // In Classic Windows, borders are typically 2px; on XP+, they are 1px.
+  gfx::Size GetThemeBorderSize(ThemeName theme) const;
+
+  // Disables all theming for top-level windows in the entire process, from
+  // when this method is called until the process exits.  All the other
+  // methods in this class will continue to work, but their output will ignore
+  // the user's theme. This is meant for use when running tests that require
+  // consistent visual results.
+  void DisableTheming() const;
+
+  // Closes cached theme handles so we can unload the DLL or update our UI
+  // for a theme change.
+  void CloseHandles() const;
+
+  // Returns true if classic theme is in use.
+  bool IsClassicTheme(ThemeName name) const;
+
+  // Gets our singleton instance.
+  static NativeThemeWin* instance();
+
+  HRESULT PaintTextField(HDC hdc,
+                         int part_id,
+                         int state_id,
+                         int classic_state,
+                         RECT* rect,
+                         COLORREF color,
+                         bool fill_content_area,
+                         bool draw_edges) const;
+
+  // NativeTheme implementation:
+  virtual gfx::Size GetPartSize(Part part,
+                                State state,
+                                const ExtraParams& extra) const override;
+  virtual void Paint(SkCanvas* canvas,
+                     Part part,
+                     State state,
+                     const gfx::Rect& rect,
+                     const ExtraParams& extra) const override;
+  virtual SkColor GetSystemColor(ColorId color_id) const override;
+
+ private:
+  NativeThemeWin();
+  ~NativeThemeWin();
+
+  // gfx::SysColorChangeListener implementation:
+  virtual void OnSysColorChange() override;
+
+  // Update the locally cached set of system colors.
+  void UpdateSystemColors();
+
+  // Paint directly to canvas' HDC.
+  void PaintDirect(SkCanvas* canvas,
+                   Part part,
+                   State state,
+                   const gfx::Rect& rect,
+                   const ExtraParams& extra) const;
+
+  // Create a temporary HDC, paint to that, clean up the alpha values in the
+  // temporary HDC, and then blit the result to canvas.  This is to work around
+  // the fact that Windows XP and some classic themes give bogus alpha values.
+  void PaintIndirect(SkCanvas* canvas,
+                     Part part,
+                     State state,
+                     const gfx::Rect& rect,
+                     const ExtraParams& extra) const;
+
+  HRESULT GetThemePartSize(ThemeName themeName,
+                           HDC hdc,
+                           int part_id,
+                           int state_id,
+                           RECT* rect,
+                           int ts,
+                           SIZE* size) const;
+
+  HRESULT PaintButton(HDC hdc,
+                      State state,
+                      const ButtonExtraParams& extra,
+                      int part_id,
+                      int state_id,
+                      RECT* rect) const;
+
+  HRESULT PaintMenuSeparator(HDC hdc,
+                             const gfx::Rect& rect) const;
+
+  HRESULT PaintMenuGutter(HDC hdc, const gfx::Rect& rect) const;
+
+  // |arrow_direction| determines whether the arrow is pointing to the left or
+  // to the right. In RTL locales, sub-menus open from right to left and
+  // therefore the menu arrow should point to the left and not to the right.
+  HRESULT PaintMenuArrow(HDC hdc,
+                         State state,
+                         const gfx::Rect& rect,
+                         const MenuArrowExtraParams& extra) const;
+
+  HRESULT PaintMenuBackground(HDC hdc, const gfx::Rect& rect) const;
+
+  HRESULT PaintMenuCheck(HDC hdc,
+                         State state,
+                         const gfx::Rect& rect,
+                         const MenuCheckExtraParams& extra) const;
+
+  HRESULT PaintMenuCheckBackground(HDC hdc,
+                                   State state,
+                                   const gfx::Rect& rect) const;
+
+  HRESULT PaintMenuItemBackground(HDC hdc,
+                                  State state,
+                                  const gfx::Rect& rect,
+                                  const MenuItemExtraParams& extra) const;
+
+  HRESULT PaintPushButton(HDC hdc,
+                          Part part,
+                          State state,
+                          const gfx::Rect& rect,
+                          const ButtonExtraParams& extra) const;
+
+  HRESULT PaintRadioButton(HDC hdc,
+                           Part part,
+                           State state,
+                           const gfx::Rect& rect,
+                           const ButtonExtraParams& extra) const;
+
+  HRESULT PaintCheckbox(HDC hdc,
+                        Part part,
+                        State state,
+                        const gfx::Rect& rect,
+                        const ButtonExtraParams& extra) const;
+
+  HRESULT PaintMenuList(HDC hdc,
+                        State state,
+                        const gfx::Rect& rect,
+                        const MenuListExtraParams& extra) const;
+
+  // Paints a scrollbar arrow.  |classic_state| should have the appropriate
+  // classic part number ORed in already.
+  HRESULT PaintScrollbarArrow(HDC hdc,
+                              Part part,
+                              State state,
+                              const gfx::Rect& rect,
+                              const ScrollbarArrowExtraParams& extra) const;
+
+  HRESULT PaintScrollbarThumb(HDC hdc,
+                              Part part,
+                              State state,
+                              const gfx::Rect& rect,
+                              const ScrollbarThumbExtraParams& extra) const;
+
+  // This method is deprecated and will be removed in the near future.
+  // Paints a scrollbar track section.  |align_rect| is only used in classic
+  // mode, and makes sure the checkerboard pattern in |target_rect| is aligned
+  // with one presumed to be in |align_rect|.
+  HRESULT PaintScrollbarTrack(SkCanvas* canvas,
+                              HDC hdc,
+                              Part part,
+                              State state,
+                              const gfx::Rect& rect,
+                              const ScrollbarTrackExtraParams& extra) const;
+
+  HRESULT PaintSpinButton(HDC hdc,
+                          Part part,
+                          State state,
+                          const gfx::Rect& rect,
+                          const InnerSpinButtonExtraParams& extra) const;
+
+  HRESULT PaintTrackbar(SkCanvas* canvas,
+                        HDC hdc,
+                        Part part,
+                        State state,
+                        const gfx::Rect& rect,
+                        const TrackbarExtraParams& extra) const;
+
+  HRESULT PaintProgressBar(HDC hdc,
+                           const gfx::Rect& rect,
+                           const ProgressBarExtraParams& extra) const;
+
+  HRESULT PaintWindowResizeGripper(HDC hdc, const gfx::Rect& rect) const;
+
+  HRESULT PaintTabPanelBackground(HDC hdc, const gfx::Rect& rect) const;
+
+  HRESULT PaintTextField(HDC hdc,
+                         Part part,
+                         State state,
+                         const gfx::Rect& rect,
+                         const TextFieldExtraParams& extra) const;
+
+  // Paints a theme part, with support for scene scaling in high-DPI mode.
+  // |theme| is the theme handle. |hdc| is the handle for the device context.
+  // |part_id| is the identifier for the part (e.g. thumb gripper). |state_id|
+  // is the identifier for the rendering state of the part (e.g. hover). |rect|
+  // is the bounds for rendering, expressed in logical coordinates.
+  HRESULT PaintScaledTheme(HANDLE theme,
+                           HDC hdc,
+                           int part_id,
+                           int state_id,
+                           const gfx::Rect& rect) const;
+
+  // Get the windows theme name/part/state.  These three helper functions are
+  // used only by GetPartSize(), as each of the corresponding PaintXXX()
+  // methods do further validation of the part and state that is required for
+  // getting the size.
+  static ThemeName GetThemeName(Part part);
+  static int GetWindowsPart(Part part, State state, const ExtraParams& extra);
+  static int GetWindowsState(Part part, State state, const ExtraParams& extra);
+
+  HRESULT GetThemeInt(ThemeName theme,
+                      int part_id,
+                      int state_id,
+                      int prop_id,
+                      int *result) const;
+
+  HRESULT PaintFrameControl(HDC hdc,
+                            const gfx::Rect& rect,
+                            UINT type,
+                            UINT state,
+                            bool is_selected,
+                            State control_state) const;
+
+  // Returns a handle to the theme data.
+  HANDLE GetThemeHandle(ThemeName theme_name) const;
+
+  typedef HRESULT (WINAPI* DrawThemeBackgroundPtr)(HANDLE theme,
+                                                   HDC hdc,
+                                                   int part_id,
+                                                   int state_id,
+                                                   const RECT* rect,
+                                                   const RECT* clip_rect);
+  typedef HRESULT (WINAPI* DrawThemeBackgroundExPtr)(HANDLE theme,
+                                                     HDC hdc,
+                                                     int part_id,
+                                                     int state_id,
+                                                     const RECT* rect,
+                                                     const DTBGOPTS* opts);
+  typedef HRESULT (WINAPI* GetThemeColorPtr)(HANDLE hTheme,
+                                             int part_id,
+                                             int state_id,
+                                             int prop_id,
+                                             COLORREF* color);
+  typedef HRESULT (WINAPI* GetThemeContentRectPtr)(HANDLE hTheme,
+                                                   HDC hdc,
+                                                   int part_id,
+                                                   int state_id,
+                                                   const RECT* rect,
+                                                   RECT* content_rect);
+  typedef HRESULT (WINAPI* GetThemePartSizePtr)(HANDLE hTheme,
+                                                HDC hdc,
+                                                int part_id,
+                                                int state_id,
+                                                RECT* rect,
+                                                int ts,
+                                                SIZE* size);
+  typedef HANDLE (WINAPI* OpenThemeDataPtr)(HWND window,
+                                            LPCWSTR class_list);
+  typedef HRESULT (WINAPI* CloseThemeDataPtr)(HANDLE theme);
+
+  typedef void (WINAPI* SetThemeAppPropertiesPtr) (DWORD flags);
+  typedef BOOL (WINAPI* IsThemeActivePtr)();
+  typedef HRESULT (WINAPI* GetThemeIntPtr)(HANDLE hTheme,
+                                           int part_id,
+                                           int state_id,
+                                           int prop_id,
+                                           int *value);
+
+  // Function pointers into uxtheme.dll.
+  DrawThemeBackgroundPtr draw_theme_;
+  DrawThemeBackgroundExPtr draw_theme_ex_;
+  GetThemeColorPtr get_theme_color_;
+  GetThemeContentRectPtr get_theme_content_rect_;
+  GetThemePartSizePtr get_theme_part_size_;
+  OpenThemeDataPtr open_theme_;
+  CloseThemeDataPtr close_theme_;
+  SetThemeAppPropertiesPtr set_theme_properties_;
+  IsThemeActivePtr is_theme_active_;
+  GetThemeIntPtr get_theme_int_;
+
+  // Handle to uxtheme.dll.
+  HMODULE theme_dll_;
+
+  // A cache of open theme handles.
+  mutable HANDLE theme_handles_[LAST];
+
+  // The system color change listener and the updated cache of system colors.
+  gfx::ScopedSysColorChangeListener color_change_listener_;
+  mutable std::map<int, SkColor> system_colors_;
+
+  // Is a high contrast theme active?
+  mutable bool is_using_high_contrast_;
+
+  // Is |is_using_high_contrast_| valid?
+  mutable bool is_using_high_contrast_valid_;
+
+  DISALLOW_COPY_AND_ASSIGN(NativeThemeWin);
+};
+
+}  // namespace ui
+
+#endif  // UI_NATIVE_THEME_NATIVE_THEME_WIN_H_