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Diffstat (limited to 'widget/Theme.h')
| -rw-r--r-- | widget/Theme.h | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/widget/Theme.h b/widget/Theme.h new file mode 100644 index 0000000000..6a71403591 --- /dev/null +++ b/widget/Theme.h @@ -0,0 +1,208 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef mozilla_widget_Theme_h +#define mozilla_widget_Theme_h + +#include "Units.h" +#include "mozilla/gfx/2D.h" +#include "mozilla/gfx/Rect.h" +#include "mozilla/gfx/Types.h" +#include "nsITheme.h" +#include "nsNativeTheme.h" +#include "ScrollbarDrawing.h" + +namespace mozilla { + +enum class StyleSystemColor : uint8_t; + +namespace widget { + +class Theme : protected nsNativeTheme, public nsITheme { + protected: + using sRGBColor = gfx::sRGBColor; + using DrawTarget = gfx::DrawTarget; + using Path = gfx::Path; + using Rect = gfx::Rect; + using Point = gfx::Point; + using RectCornerRadii = gfx::RectCornerRadii; + using Colors = ThemeColors; + using AccentColor = ThemeAccentColor; + using ElementState = dom::ElementState; + + public: + explicit Theme(UniquePtr<ScrollbarDrawing>&& aScrollbarDrawing) + : mScrollbarDrawing(std::move(aScrollbarDrawing)) { + mScrollbarDrawing->RecomputeScrollbarParams(); + } + + static void Init(); + static void Shutdown(); + static void LookAndFeelChanged(); + + using DPIRatio = CSSToLayoutDeviceScale; + + NS_DECL_ISUPPORTS_INHERITED + + // The nsITheme interface. + NS_IMETHOD DrawWidgetBackground(gfxContext* aContext, nsIFrame*, + StyleAppearance, const nsRect& aRect, + const nsRect& aDirtyRect, + DrawOverflow) override; + + bool CreateWebRenderCommandsForWidget( + wr::DisplayListBuilder& aBuilder, wr::IpcResourceUpdateQueue& aResources, + const layers::StackingContextHelper& aSc, + layers::RenderRootStateManager* aManager, nsIFrame*, StyleAppearance, + const nsRect& aRect) override; + + // PaintBackendData will be either a DrawTarget, or a WebRenderBackendData. + // + // The return value represents whether the widget could be painted with the + // given back-end. + template <typename PaintBackendData> + bool DoDrawWidgetBackground(PaintBackendData&, nsIFrame*, StyleAppearance, + const nsRect&, DrawOverflow); + + [[nodiscard]] LayoutDeviceIntMargin GetWidgetBorder(nsDeviceContext* aContext, + nsIFrame*, + StyleAppearance) override; + bool GetWidgetPadding(nsDeviceContext* aContext, nsIFrame*, StyleAppearance, + LayoutDeviceIntMargin* aResult) override; + bool GetWidgetOverflow(nsDeviceContext* aContext, nsIFrame*, StyleAppearance, + nsRect* aOverflowRect) override; + LayoutDeviceIntSize GetMinimumWidgetSize(nsPresContext*, nsIFrame*, + StyleAppearance) override; + Transparency GetWidgetTransparency(nsIFrame*, StyleAppearance) override; + NS_IMETHOD WidgetStateChanged(nsIFrame*, StyleAppearance, nsAtom* aAttribute, + bool* aShouldRepaint, + const nsAttrValue* aOldValue) override; + NS_IMETHOD ThemeChanged() override; + bool WidgetAppearanceDependsOnWindowFocus(StyleAppearance) override; + /*bool NeedToClearBackgroundBehindWidget( + nsIFrame*, StyleAppearance) override;*/ + ThemeGeometryType ThemeGeometryTypeForWidget(nsIFrame*, + StyleAppearance) override; + bool ThemeSupportsWidget(nsPresContext*, nsIFrame*, StyleAppearance) override; + bool WidgetIsContainer(StyleAppearance) override; + bool ThemeDrawsFocusForWidget(nsIFrame*, StyleAppearance) override; + bool ThemeNeedsComboboxDropmarker() override; + + LayoutDeviceIntCoord GetScrollbarSize(const nsPresContext*, + StyleScrollbarWidth, Overlay) final; + + nscoord GetCheckboxRadioPrefSize() override; + + static UniquePtr<ScrollbarDrawing> ScrollbarStyle(); + + protected: + virtual ~Theme() = default; + + DPIRatio GetDPIRatio(nsPresContext*, StyleAppearance); + DPIRatio GetDPIRatio(nsIFrame*, StyleAppearance); + + std::tuple<sRGBColor, sRGBColor, sRGBColor> ComputeCheckboxColors( + const ElementState&, StyleAppearance, const Colors&); + enum class OutlineCoversBorder : bool { No, Yes }; + sRGBColor ComputeBorderColor(const ElementState&, const Colors&, + OutlineCoversBorder); + + std::pair<sRGBColor, sRGBColor> ComputeButtonColors(const ElementState&, + const Colors&, + nsIFrame* = nullptr); + std::pair<sRGBColor, sRGBColor> ComputeTextfieldColors(const ElementState&, + const Colors&, + OutlineCoversBorder); + std::pair<sRGBColor, sRGBColor> ComputeRangeProgressColors( + const ElementState&, const Colors&); + std::pair<sRGBColor, sRGBColor> ComputeRangeTrackColors(const ElementState&, + const Colors&); + std::pair<sRGBColor, sRGBColor> ComputeRangeThumbColors(const ElementState&, + const Colors&); + std::pair<sRGBColor, sRGBColor> ComputeProgressColors(const Colors&); + std::pair<sRGBColor, sRGBColor> ComputeProgressTrackColors(const Colors&); + std::pair<sRGBColor, sRGBColor> ComputeMeterchunkColors( + const ElementState& aMeterState, const Colors&); + std::array<sRGBColor, 3> ComputeFocusRectColors(const Colors&); + + template <typename PaintBackendData> + void PaintRoundedFocusRect(PaintBackendData&, const LayoutDeviceRect&, + const Colors&, DPIRatio, CSSCoord aRadius, + CSSCoord aOffset); + template <typename PaintBackendData> + void PaintAutoStyleOutline(nsIFrame*, PaintBackendData&, + const LayoutDeviceRect&, const Colors&, DPIRatio); + + void PaintCheckboxControl(DrawTarget& aDrawTarget, const LayoutDeviceRect&, + const ElementState&, const Colors&, DPIRatio); + void PaintCheckMark(DrawTarget&, const LayoutDeviceRect&, const sRGBColor&); + void PaintIndeterminateMark(DrawTarget&, const LayoutDeviceRect&, + const sRGBColor&); + + template <typename PaintBackendData> + void PaintStrokedCircle(PaintBackendData&, const LayoutDeviceRect&, + const sRGBColor& aBackgroundColor, + const sRGBColor& aBorderColor, + const CSSCoord aBorderWidth, DPIRatio); + void PaintCircleShadow(DrawTarget&, const LayoutDeviceRect& aBoxRect, + const LayoutDeviceRect& aClipRect, float aShadowAlpha, + const CSSPoint& aShadowOffset, + CSSCoord aShadowBlurStdDev, DPIRatio); + void PaintCircleShadow(WebRenderBackendData&, + const LayoutDeviceRect& aBoxRect, + const LayoutDeviceRect& aClipRect, float aShadowAlpha, + const CSSPoint& aShadowOffset, + CSSCoord aShadowBlurStdDev, DPIRatio); + template <typename PaintBackendData> + void PaintRadioControl(PaintBackendData&, const LayoutDeviceRect&, + const ElementState&, const Colors&, DPIRatio); + template <typename PaintBackendData> + void PaintRadioCheckmark(PaintBackendData&, const LayoutDeviceRect&, + const ElementState&, DPIRatio); + template <typename PaintBackendData> + void PaintTextField(PaintBackendData&, const LayoutDeviceRect&, + const ElementState&, const Colors&, DPIRatio); + template <typename PaintBackendData> + void PaintListbox(PaintBackendData&, const LayoutDeviceRect&, + const ElementState&, const Colors&, DPIRatio); + template <typename PaintBackendData> + void PaintMenulist(PaintBackendData&, const LayoutDeviceRect&, + const ElementState&, const Colors&, DPIRatio); + void PaintMenulistArrowButton(nsIFrame*, DrawTarget&, const LayoutDeviceRect&, + const ElementState&); + void PaintSpinnerButton(nsIFrame*, DrawTarget&, const LayoutDeviceRect&, + const ElementState&, StyleAppearance, const Colors&, + DPIRatio); + template <typename PaintBackendData> + void PaintRange(nsIFrame*, PaintBackendData&, const LayoutDeviceRect&, + const ElementState&, const Colors&, DPIRatio, + bool aHorizontal); + template <typename PaintBackendData> + void PaintProgress(nsIFrame*, PaintBackendData&, const LayoutDeviceRect&, + const ElementState&, const Colors&, DPIRatio, + bool aIsMeter); + template <typename PaintBackendData> + void PaintButton(nsIFrame*, PaintBackendData&, const LayoutDeviceRect&, + const ElementState&, const Colors&, DPIRatio); + + static void PrefChangedCallback(const char*, void*) { + LookAndFeel::NotifyChangedAllWindows(ThemeChangeKind::Layout); + } + + void SetScrollbarDrawing(UniquePtr<ScrollbarDrawing>&& aScrollbarDrawing) { + mScrollbarDrawing = std::move(aScrollbarDrawing); + mScrollbarDrawing->RecomputeScrollbarParams(); + } + ScrollbarDrawing& GetScrollbarDrawing() const { return *mScrollbarDrawing; } + UniquePtr<ScrollbarDrawing> mScrollbarDrawing; + + bool ThemeSupportsScrollbarButtons() override; +}; + +} // namespace widget +} // namespace mozilla + +#endif |