Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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