The Tor Browser: widget/windows/nsNativeThemeWin.h@ac0c01689b40

Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-

     2  *

     3  * This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 #ifndef nsNativeThemeWin_h

     8 #define nsNativeThemeWin_h

    10 #include "nsITheme.h"

    11 #include "nsCOMPtr.h"

    12 #include "nsIAtom.h"

    13 #include "nsNativeTheme.h"

    14 #include "gfxTypes.h"

    15 #include <windows.h>

    16 #include "mozilla/TimeStamp.h"

    18 struct nsIntRect;

    19 struct nsIntSize;

    21 class nsNativeThemeWin : private nsNativeTheme,

    22                          public nsITheme {

    23 public:

    24   typedef mozilla::TimeStamp TimeStamp;

    25   typedef mozilla::TimeDuration TimeDuration;

    27   NS_DECL_ISUPPORTS_INHERITED

    29   // The nsITheme interface.

    30   NS_IMETHOD DrawWidgetBackground(nsRenderingContext* aContext,

    31                                   nsIFrame* aFrame,

    32                                   uint8_t aWidgetType,

    33                                   const nsRect& aRect,

    34                                   const nsRect& aDirtyRect);

    36   NS_IMETHOD GetWidgetBorder(nsDeviceContext* aContext,

    37                              nsIFrame* aFrame,

    38                              uint8_t aWidgetType,

    39                              nsIntMargin* aResult);

    41   virtual bool GetWidgetPadding(nsDeviceContext* aContext,

    42                                   nsIFrame* aFrame,

    43                                   uint8_t aWidgetType,

    44                                   nsIntMargin* aResult);

    46   virtual bool GetWidgetOverflow(nsDeviceContext* aContext,

    47                                    nsIFrame* aFrame,

    48                                    uint8_t aWidgetType,

    49                                    nsRect* aOverflowRect);

    51   NS_IMETHOD GetMinimumWidgetSize(nsRenderingContext* aContext, nsIFrame* aFrame,

    52                                   uint8_t aWidgetType,

    53                                   nsIntSize* aResult,

    54                                   bool* aIsOverridable);

    56   virtual Transparency GetWidgetTransparency(nsIFrame* aFrame, uint8_t aWidgetType);

    58   NS_IMETHOD WidgetStateChanged(nsIFrame* aFrame, uint8_t aWidgetType,

    59                                 nsIAtom* aAttribute, bool* aShouldRepaint);

    61   NS_IMETHOD ThemeChanged();

    63   bool ThemeSupportsWidget(nsPresContext* aPresContext,

    64                              nsIFrame* aFrame,

    65                              uint8_t aWidgetType);

    67   bool WidgetIsContainer(uint8_t aWidgetType);

    69   bool ThemeDrawsFocusForWidget(uint8_t aWidgetType) MOZ_OVERRIDE;

    71   bool ThemeNeedsComboboxDropmarker();

    73   virtual bool WidgetAppearanceDependsOnWindowFocus(uint8_t aWidgetType) MOZ_OVERRIDE;

    75   virtual bool ShouldHideScrollbars() MOZ_OVERRIDE;

    77   nsNativeThemeWin();

    78   virtual ~nsNativeThemeWin();

    80 protected:

    81   HANDLE GetTheme(uint8_t aWidgetType);

    82   nsresult GetThemePartAndState(nsIFrame* aFrame, uint8_t aWidgetType,

    83                                 int32_t& aPart, int32_t& aState);

    84   nsresult ClassicGetThemePartAndState(nsIFrame* aFrame, uint8_t aWidgetType,

    85                                        int32_t& aPart, int32_t& aState, bool& aFocused);

    86   nsresult ClassicDrawWidgetBackground(nsRenderingContext* aContext,

    87                                        nsIFrame* aFrame,

    88                                        uint8_t aWidgetType,

    89                                        const nsRect& aRect,

    90                                        const nsRect& aClipRect);

    91   nsresult ClassicGetWidgetBorder(nsDeviceContext* aContext,

    92                                   nsIFrame* aFrame,

    93                                   uint8_t aWidgetType,

    94                                   nsIntMargin* aResult);

    95   bool ClassicGetWidgetPadding(nsDeviceContext* aContext,

    96                                nsIFrame* aFrame,

    97                                uint8_t aWidgetType,

    98                                nsIntMargin* aResult);

    99   nsresult ClassicGetMinimumWidgetSize(nsRenderingContext* aContext, nsIFrame* aFrame,

   100                                        uint8_t aWidgetType,

   101                                        nsIntSize* aResult,

   102                                        bool* aIsOverridable);

   103   bool ClassicThemeSupportsWidget(nsPresContext* aPresContext,

   104                                   nsIFrame* aFrame,

   105                                   uint8_t aWidgetType);

   106   void DrawCheckedRect(HDC hdc, const RECT& rc, int32_t fore, int32_t back,

   107                        HBRUSH defaultBack);

   108   uint32_t GetWidgetNativeDrawingFlags(uint8_t aWidgetType);

   109   int32_t StandardGetState(nsIFrame* aFrame, uint8_t aWidgetType, bool wantFocused);

   110   bool IsMenuActive(nsIFrame* aFrame, uint8_t aWidgetType);

   111   RECT CalculateProgressOverlayRect(nsIFrame* aFrame, RECT* aWidgetRect,

   112                                     bool aIsVertical, bool aIsIndeterminate,

   113                                     bool aIsClassic);

   114   void DrawThemedProgressMeter(nsIFrame* aFrame, int aWidgetType,

   115                                HANDLE aTheme, HDC aHdc,

   116                                int aPart, int aState,

   117                                RECT* aWidgetRect, RECT* aClipRect,

   118                                gfxFloat aAppUnits);

   120 private:

   121   TimeStamp mProgressDeterminateTimeStamp;

   122   TimeStamp mProgressIndeterminateTimeStamp;

   123 };

   125 #endif

The Tor Browser / file revision

widget/windows/nsNativeThemeWin.h@ac0c01689b40

widget/windows/nsNativeThemeWin.h