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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "nsCheckboxRadioFrame.h"
#include "nsLayoutUtils.h"
#include "mozilla/PresShell.h"
#include "nsIContent.h"
using namespace mozilla;
nsCheckboxRadioFrame* NS_NewCheckboxRadioFrame(PresShell* aPresShell,
ComputedStyle* aStyle) {
return new (aPresShell)
nsCheckboxRadioFrame(aStyle, aPresShell->GetPresContext());
}
nsCheckboxRadioFrame::nsCheckboxRadioFrame(ComputedStyle* aStyle,
nsPresContext* aPresContext)
: nsAtomicContainerFrame(aStyle, aPresContext, kClassID) {}
nsCheckboxRadioFrame::~nsCheckboxRadioFrame() = default;
NS_IMPL_FRAMEARENA_HELPERS(nsCheckboxRadioFrame)
NS_QUERYFRAME_HEAD(nsCheckboxRadioFrame)
NS_QUERYFRAME_TAIL_INHERITING(nsAtomicContainerFrame)
nscoord nsCheckboxRadioFrame::DefaultSize() {
const CSSCoord size = StyleDisplay()->HasAppearance()
? PresContext()->Theme()->GetCheckboxRadioPrefSize()
: CSSCoord(13.0f);
return CSSPixel::ToAppUnits(Style()->EffectiveZoom().Zoom(size));
}
/* virtual */
void nsCheckboxRadioFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsDisplayListSet& aLists) {
DO_GLOBAL_REFLOW_COUNT_DSP("nsCheckboxRadioFrame");
DisplayBorderBackgroundOutline(aBuilder, aLists);
}
nscoord nsCheckboxRadioFrame::IntrinsicISize(const IntrinsicSizeInput& aInput,
IntrinsicISizeType aType) {
return StyleDisplay()->HasAppearance() ? DefaultSize() : 0;
}
/* virtual */
LogicalSize nsCheckboxRadioFrame::ComputeAutoSize(
gfxContext* aRC, WritingMode aWM, const LogicalSize& aCBSize,
nscoord aAvailableISize, const LogicalSize& aMargin,
const LogicalSize& aBorderPadding, const StyleSizeOverrides& aSizeOverrides,
ComputeSizeFlags aFlags) {
LogicalSize size(aWM, 0, 0);
if (!StyleDisplay()->HasAppearance()) {
return size;
}
return nsAtomicContainerFrame::ComputeAutoSize(
aRC, aWM, aCBSize, aAvailableISize, aMargin, aBorderPadding,
aSizeOverrides, aFlags);
}
Maybe<nscoord> nsCheckboxRadioFrame::GetNaturalBaselineBOffset(
WritingMode aWM, BaselineSharingGroup aBaselineGroup,
BaselineExportContext) const {
NS_ASSERTION(!IsSubtreeDirty(), "frame must not be dirty");
if (aBaselineGroup == BaselineSharingGroup::Last) {
return Nothing{};
}
if (StyleDisplay()->IsBlockOutsideStyle()) {
return Nothing{};
}
// For appearance:none we use a standard CSS baseline, i.e. synthesized from
// our margin-box.
if (!StyleDisplay()->HasAppearance()) {
return Nothing{};
}
if (aWM.IsCentralBaseline()) {
return Some(BSize(aWM) / 2);
}
// This is for compatibility with Chrome, Safari and Edge (Dec 2016).
// Treat radio buttons and checkboxes as having an intrinsic baseline
// at the block-end of the control (use the block-end content edge rather
// than the margin edge).
// For "inverted" lines (typically in writing-mode:vertical-lr), use the
// block-start end instead.
// See kCheckboxRadioBorderWidth in Theme.cpp
CSSCoord border = PresContext()->Theme()->GetCheckboxRadioBorderWidth();
auto bp = CSSPixel::ToAppUnits(Style()->EffectiveZoom().Zoom(border));
return Some(aWM.IsLineInverted() ? std::min(bp, BSize(aWM))
: std::max(0, BSize(aWM) - bp));
}
void nsCheckboxRadioFrame::Reflow(nsPresContext* aPresContext,
ReflowOutput& aDesiredSize,
const ReflowInput& aReflowInput,
nsReflowStatus& aStatus) {
MarkInReflow();
DO_GLOBAL_REFLOW_COUNT("nsCheckboxRadioFrame");
MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
NS_FRAME_TRACE(
NS_FRAME_TRACE_CALLS,
("enter nsCheckboxRadioFrame::Reflow: aMaxSize=%d,%d",
aReflowInput.AvailableWidth(), aReflowInput.AvailableHeight()));
const auto wm = aReflowInput.GetWritingMode();
MOZ_ASSERT(aReflowInput.ComputedLogicalBorderPadding(wm).IsAllZero());
const auto contentBoxSize =
aReflowInput.ComputedSizeWithBSizeFallback([&] { return DefaultSize(); });
aDesiredSize.SetSize(wm, contentBoxSize);
if (nsLayoutUtils::FontSizeInflationEnabled(aPresContext)) {
const float inflation = nsLayoutUtils::FontSizeInflationFor(this);
aDesiredSize.Width() *= inflation;
aDesiredSize.Height() *= inflation;
}
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
("exit nsCheckboxRadioFrame::Reflow: size=%d,%d",
aDesiredSize.Width(), aDesiredSize.Height()));
aDesiredSize.SetOverflowAreasToDesiredBounds();
FinishAndStoreOverflow(&aDesiredSize);
}
nsresult nsCheckboxRadioFrame::HandleEvent(nsPresContext* aPresContext,
WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus) {
// Check for disabled content so that selection works properly (?).
if (IsContentDisabled()) {
return nsIFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
}
return NS_OK;
}
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