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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /widget/ScrollbarDrawingAndroid.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | widget/ScrollbarDrawingAndroid.cpp | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/widget/ScrollbarDrawingAndroid.cpp b/widget/ScrollbarDrawingAndroid.cpp new file mode 100644 index 0000000000..29ad917a91 --- /dev/null +++ b/widget/ScrollbarDrawingAndroid.cpp @@ -0,0 +1,84 @@ +/* -*- Mode: C++; tab-width: 40; 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/. */ + +#include "ScrollbarDrawingAndroid.h" + +#include "nsIFrame.h" +#include "nsNativeTheme.h" +#include "mozilla/StaticPrefs_widget.h" + +using namespace mozilla; +using namespace mozilla::widget; + +LayoutDeviceIntSize ScrollbarDrawingAndroid::GetMinimumWidgetSize( + nsPresContext* aPresContext, StyleAppearance aAppearance, + nsIFrame* aFrame) { + MOZ_ASSERT(nsNativeTheme::IsWidgetScrollbarPart(aAppearance)); + auto size = + GetScrollbarSize(aPresContext, StyleScrollbarWidth::Auto, Overlay::Yes); + return LayoutDeviceIntSize{size, size}; +} + +template <typename PaintBackendData> +void ScrollbarDrawingAndroid::DoPaintScrollbarThumb( + PaintBackendData& aPaintData, const LayoutDeviceRect& aRect, + ScrollbarKind aScrollbarKind, nsIFrame* aFrame, const ComputedStyle& aStyle, + const ElementState& aElementState, const DocumentState& aDocumentState, + const Colors& aColors, const DPIRatio& aDpiRatio) { + // TODO(emilio): Maybe do like macOS and draw a stroke? + const auto color = ComputeScrollbarThumbColor(aFrame, aStyle, aElementState, + aDocumentState, aColors); + const bool horizontal = aScrollbarKind == ScrollbarKind::Horizontal; + + // Draw the thumb rect centered in the scrollbar. + LayoutDeviceRect thumbRect(aRect); + if (horizontal) { + thumbRect.height *= 0.5f; + thumbRect.y += thumbRect.height * 0.5f; + } else { + thumbRect.width *= 0.5f; + thumbRect.x += thumbRect.width * 0.5f; + } + + const LayoutDeviceCoord radius = + (horizontal ? thumbRect.height : thumbRect.width) / 2.0f; + ThemeDrawing::PaintRoundedRectWithRadius(aPaintData, thumbRect, color, + sRGBColor::White(0.0f), 0.0f, + radius / aDpiRatio, aDpiRatio); +} + +bool ScrollbarDrawingAndroid::PaintScrollbarThumb( + DrawTarget& aDt, const LayoutDeviceRect& aRect, + ScrollbarKind aScrollbarKind, nsIFrame* aFrame, const ComputedStyle& aStyle, + const ElementState& aElementState, const DocumentState& aDocumentState, + const Colors& aColors, const DPIRatio& aDpiRatio) { + DoPaintScrollbarThumb(aDt, aRect, aScrollbarKind, aFrame, aStyle, + aElementState, aDocumentState, aColors, aDpiRatio); + return true; +} + +bool ScrollbarDrawingAndroid::PaintScrollbarThumb( + WebRenderBackendData& aWrData, const LayoutDeviceRect& aRect, + ScrollbarKind aScrollbarKind, nsIFrame* aFrame, const ComputedStyle& aStyle, + const ElementState& aElementState, const DocumentState& aDocumentState, + const Colors& aColors, const DPIRatio& aDpiRatio) { + DoPaintScrollbarThumb(aWrData, aRect, aScrollbarKind, aFrame, aStyle, + aElementState, aDocumentState, aColors, aDpiRatio); + return true; +} + +void ScrollbarDrawingAndroid::RecomputeScrollbarParams() { + uint32_t defaultSize = 6; + uint32_t overrideSize = + StaticPrefs::widget_non_native_theme_scrollbar_size_override(); + if (overrideSize > 0) { + defaultSize = overrideSize; + } + ConfigureScrollbarSize(defaultSize); + // We make thin scrollbars as wide as auto ones because auto scrollbars on + // android are already thin enough. + ConfigureScrollbarSize(StyleScrollbarWidth::Thin, Overlay::Yes, defaultSize); + ConfigureScrollbarSize(StyleScrollbarWidth::Thin, Overlay::No, defaultSize); +} |