widget/ScrollbarDrawingAndroid.h

   1 /* -*- Mode: C++; tab-width: 40; 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/. */
   5
   6 #ifndef mozilla_widget_ScrollbarDrawingAndroid_h
   7 #define mozilla_widget_ScrollbarDrawingAndroid_h
   8
   9 #include "nsITheme.h"
  10 #include "ScrollbarDrawing.h"
  11
  12 namespace mozilla::widget {
  13
  14 class ScrollbarDrawingAndroid final : public ScrollbarDrawing {
  15  public:
  16   ScrollbarDrawingAndroid() : ScrollbarDrawing(Kind::Android) {}
  17   virtual ~ScrollbarDrawingAndroid() = default;
  18
  19   LayoutDeviceIntSize GetMinimumWidgetSize(nsPresContext*,
  20                                            StyleAppearance aAppearance,
  21                                            nsIFrame* aFrame) override;
  22
  23   ScrollbarSizes GetScrollbarSizes(nsPresContext*, StyleScrollbarWidth,
  24                                    Overlay) override;
  25
  26   template <typename PaintBackendData>
  27   void DoPaintScrollbarThumb(PaintBackendData&, const LayoutDeviceRect& aRect,
  28                              bool aHorizontal, nsIFrame* aFrame,
  29                              const ComputedStyle& aStyle,
  30                              const EventStates& aElementState,
  31                              const EventStates& aDocumentState, const Colors&,
  32                              const DPIRatio&);
  33   bool PaintScrollbarThumb(DrawTarget&, const LayoutDeviceRect& aRect,
  34                            bool aHorizontal, nsIFrame* aFrame,
  35                            const ComputedStyle& aStyle,
  36                            const EventStates& aElementState,
  37                            const EventStates& aDocumentState, const Colors&,
  38                            const DPIRatio&) override;
  39   bool PaintScrollbarThumb(WebRenderBackendData&, const LayoutDeviceRect& aRect,
  40                            bool aHorizontal, nsIFrame* aFrame,
  41                            const ComputedStyle& aStyle,
  42                            const EventStates& aElementState,
  43                            const EventStates& aDocumentState, const Colors&,
  44                            const DPIRatio&) override;
  45
  46   void RecomputeScrollbarParams() override;
  47
  48   bool ShouldDrawScrollbarButtons() override { return false; }
  49 };
  50
  51 }  // namespace mozilla::widget
  52
  53 #endif