widget/ScrollbarDrawingCocoa.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   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/. */
   6
   7 #ifndef mozilla_widget_ScrollbarDrawingCocoa_h
   8 #define mozilla_widget_ScrollbarDrawingCocoa_h
   9
  10 #include "ScrollbarDrawing.h"
  11
  12 #include "mozilla/Array.h"
  13
  14 namespace mozilla::widget {
  15
  16 class ScrollbarDrawingCocoa final : public ScrollbarDrawing {
  17  public:
  18   ScrollbarDrawingCocoa() : ScrollbarDrawing(Kind::Cocoa) {}
  19   virtual ~ScrollbarDrawingCocoa() = default;
  20
  21   LayoutDeviceIntSize GetMinimumWidgetSize(nsPresContext*,
  22                                            StyleAppearance aAppearance,
  23                                            nsIFrame* aFrame) override;
  24
  25   static CSSIntCoord GetScrollbarSize(StyleScrollbarWidth aWidth,
  26                                       bool aOverlay);
  27   static LayoutDeviceIntCoord GetScrollbarSize(StyleScrollbarWidth aWidth,
  28                                                bool aOverlay,
  29                                                DPIRatio aDpiRatio);
  30   ScrollbarSizes GetScrollbarSizes(nsPresContext*, StyleScrollbarWidth,
  31                                    Overlay) override;
  32
  33   template <typename PaintBackendData>
  34   void DoPaintScrollbarThumb(PaintBackendData&, const LayoutDeviceRect& aRect,
  35                              bool aHorizontal, nsIFrame* aFrame,
  36                              const ComputedStyle& aStyle,
  37                              const EventStates& aElementState,
  38                              const EventStates& aDocumentState,
  39                              const DPIRatio&);
  40   bool PaintScrollbarThumb(DrawTarget&, const LayoutDeviceRect&,
  41                            bool aHorizontal, nsIFrame*, const ComputedStyle&,
  42                            const EventStates& aElementState,
  43                            const EventStates& aDocumentState, const Colors&,
  44                            const DPIRatio&) override;
  45   bool PaintScrollbarThumb(WebRenderBackendData&, const LayoutDeviceRect&,
  46                            bool aHorizontal, nsIFrame*, const ComputedStyle&,
  47                            const EventStates& aElementState,
  48                            const EventStates& aDocumentState, const Colors&,
  49                            const DPIRatio&) override;
  50
  51   template <typename PaintBackendData>
  52   void DoPaintScrollbarTrack(PaintBackendData&, const LayoutDeviceRect&, bool,
  53                              nsIFrame*, const ComputedStyle&,
  54                              const EventStates&, const DPIRatio&);
  55   bool PaintScrollbarTrack(DrawTarget&, const LayoutDeviceRect& aRect,
  56                            bool aHorizontal, nsIFrame* aFrame,
  57                            const ComputedStyle& aStyle,
  58                            const EventStates& aDocumentState, const Colors&,
  59                            const DPIRatio&) override;
  60   bool PaintScrollbarTrack(WebRenderBackendData&, const LayoutDeviceRect& aRect,
  61                            bool aHorizontal, nsIFrame* aFrame,
  62                            const ComputedStyle& aStyle,
  63                            const EventStates& aDocumentState, const Colors&,
  64                            const DPIRatio&) override;
  65
  66   template <typename PaintBackendData>
  67   void DoPaintScrollCorner(PaintBackendData&, const LayoutDeviceRect&,
  68                            nsIFrame*, const ComputedStyle&, const EventStates&,
  69                            const DPIRatio&);
  70   bool PaintScrollCorner(DrawTarget&, const LayoutDeviceRect& aRect,
  71                          nsIFrame* aFrame, const ComputedStyle& aStyle,
  72                          const EventStates& aDocumentState, const Colors&,
  73                          const DPIRatio&) override;
  74   bool PaintScrollCorner(WebRenderBackendData&, const LayoutDeviceRect& aRect,
  75                          nsIFrame* aFrame, const ComputedStyle& aStyle,
  76                          const EventStates& aDocumentState, const Colors&,
  77                          const DPIRatio&) override;
  78
  79   void RecomputeScrollbarParams() override;
  80
  81   bool ShouldDrawScrollbarButtons() override { return false; }
  82 };
  83
  84 }  // namespace mozilla::widget
  85
  86 #endif