forked from mirrors/gecko-dev
361f923f82
Based on the spec, if the aspect-ratio property value is: 1) auto: we should always use content-box dimensions. 2) <ratio>: the aspect-ratio works with box sizing dimensions. 3) auto && <ratio>: we use content-box dimensions in all cases. So we need an extra flag to address that we should use box-sizing or always use content-box dimensions while computing the size in ratio-dependent axis. This also updates some wpts for non-replaced elements because we should use content-box if aspect-ratio is 'auto && <ratio>'. Differential Revision: https://phabricator.services.mozilla.com/D100072
32 lines
1.4 KiB
C++
32 lines
1.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "AspectRatio.h"
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#include "mozilla/WritingModes.h"
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namespace mozilla {
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nscoord AspectRatio::ComputeRatioDependentSize(
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LogicalAxis aRatioDependentAxis, const WritingMode& aWM,
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nscoord aRatioDeterminingSize,
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const LogicalSize& aContentBoxSizeToBoxSizingAdjust) const {
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MOZ_ASSERT(*this,
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"Infinite or zero ratio may have undefined behavior when "
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"computing the size");
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const LogicalSize& boxSizingAdjust = mUseBoxSizing == UseBoxSizing::No
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? LogicalSize(aWM)
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: aContentBoxSizeToBoxSizingAdjust;
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return aRatioDependentAxis == LogicalAxis::eLogicalAxisInline
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? ConvertToWritingMode(aWM).ApplyTo(aRatioDeterminingSize +
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boxSizingAdjust.BSize(aWM)) -
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boxSizingAdjust.ISize(aWM)
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: ConvertToWritingMode(aWM).Inverted().ApplyTo(
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aRatioDeterminingSize + boxSizingAdjust.ISize(aWM)) -
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boxSizingAdjust.BSize(aWM);
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}
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} // namespace mozilla
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