1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 #ifndef _GTK_NSNATIVETHEMEGTK_H_
7 #define _GTK_NSNATIVETHEMEGTK_H_
15 #include "gtkdrawing.h"
17 class nsNativeThemeGTK final
: public mozilla::widget::Theme
{
18 using Theme
= mozilla::widget::Theme
;
21 // The nsITheme interface.
22 NS_IMETHOD
DrawWidgetBackground(gfxContext
* aContext
, nsIFrame
* aFrame
,
23 StyleAppearance aAppearance
,
24 const nsRect
& aRect
, const nsRect
& aDirtyRect
,
25 DrawOverflow
) override
;
27 bool CreateWebRenderCommandsForWidget(
28 mozilla::wr::DisplayListBuilder
& aBuilder
,
29 mozilla::wr::IpcResourceUpdateQueue
& aResources
,
30 const mozilla::layers::StackingContextHelper
& aSc
,
31 mozilla::layers::RenderRootStateManager
* aManager
, nsIFrame
*,
32 StyleAppearance
, const nsRect
& aRect
) override
;
34 [[nodiscard
]] LayoutDeviceIntMargin
GetWidgetBorder(
35 nsDeviceContext
* aContext
, nsIFrame
* aFrame
,
36 StyleAppearance aAppearance
) override
;
38 bool GetWidgetPadding(nsDeviceContext
* aContext
, nsIFrame
* aFrame
,
39 StyleAppearance aAppearance
,
40 LayoutDeviceIntMargin
* aResult
) override
;
42 bool GetWidgetOverflow(nsDeviceContext
* aContext
, nsIFrame
* aFrame
,
43 StyleAppearance aAppearance
,
44 nsRect
* aOverflowRect
) override
;
46 // Whether we draw a non-native widget.
48 // We always draw scrollbars as non-native so that all of Firefox has
49 // consistent scrollbar styles both in chrome and content (plus, the
50 // non-native scrollbars support scrollbar-width, auto-darkening...).
52 // We draw other widgets as non-native when their color-scheme doesn't match
53 // the current GTK theme's color-scheme. We do that because frequently
54 // switching GTK themes at runtime is prohibitively expensive. In that case
55 // (`BecauseColorMismatch`) we don't call into the non-native theme for sizing
56 // information (GetWidgetPadding/Border and GetMinimumWidgetSize), to avoid
57 // subtle sizing changes. The non-native theme can basically draw at any size,
58 // so we prefer to have consistent sizing information.
59 enum class NonNative
{ No
, Always
, BecauseColorMismatch
};
60 static bool IsWidgetAlwaysNonNative(nsIFrame
*, StyleAppearance
);
61 NonNative
IsWidgetNonNative(nsIFrame
*, StyleAppearance
);
63 mozilla::LayoutDeviceIntSize
GetMinimumWidgetSize(
64 nsPresContext
* aPresContext
, nsIFrame
* aFrame
,
65 StyleAppearance aAppearance
) override
;
67 NS_IMETHOD
WidgetStateChanged(nsIFrame
* aFrame
, StyleAppearance aAppearance
,
68 nsAtom
* aAttribute
, bool* aShouldRepaint
,
69 const nsAttrValue
* aOldValue
) override
;
71 NS_IMETHOD
ThemeChanged() override
;
74 ThemeSupportsWidget(nsPresContext
* aPresContext
, nsIFrame
* aFrame
,
75 StyleAppearance aAppearance
) override
;
77 NS_IMETHOD_(bool) WidgetIsContainer(StyleAppearance aAppearance
) override
;
79 bool ThemeDrawsFocusForWidget(nsIFrame
*, StyleAppearance
) override
;
81 bool ThemeNeedsComboboxDropmarker() override
;
82 Transparency
GetWidgetTransparency(nsIFrame
*, StyleAppearance
) override
;
87 virtual ~nsNativeThemeGTK();
90 GtkTextDirection
GetTextDirection(nsIFrame
* aFrame
);
91 gint
GetTabMarginPixels(nsIFrame
* aFrame
);
92 bool GetGtkWidgetAndState(StyleAppearance aAppearance
, nsIFrame
* aFrame
,
93 WidgetNodeType
& aGtkWidgetType
,
94 GtkWidgetState
* aState
, gint
* aWidgetFlags
);
95 mozilla::CSSIntMargin
GetExtraSizeForWidget(nsIFrame
*, StyleAppearance
);
96 bool IsWidgetVisible(StyleAppearance aAppearance
);
98 void RefreshWidgetWindow(nsIFrame
* aFrame
);
99 WidgetNodeType
NativeThemeToGtkTheme(StyleAppearance aAppearance
,
102 uint8_t mDisabledWidgetTypes
103 [(static_cast<size_t>(mozilla::StyleAppearance::Count
) + 7) / 8];
105 mSafeWidgetStates
[static_cast<size_t>(mozilla::StyleAppearance::Count
) *
106 4]; // 32 bits per widget
107 static const char* sDisabledEngines
[];
109 // Because moz_gtk_get_widget_border can be slow, we cache its results
110 // by widget type. Each bit in mBorderCacheValid says whether the
111 // corresponding entry in mBorderCache is valid.
112 mozilla::CSSIntMargin
GetCachedWidgetBorder(nsIFrame
* aFrame
,
113 StyleAppearance aAppearance
,
114 GtkTextDirection aDirection
);
115 uint8_t mBorderCacheValid
[(MOZ_GTK_WIDGET_NODE_COUNT
+ 7) / 8];
116 mozilla::CSSIntMargin mBorderCache
[MOZ_GTK_WIDGET_NODE_COUNT
];