Emilio Cobos Álvarez
f80b84aeb4
AspectRatio fix is needed so that some crashtests don't hit negative size asserts which now start triggering that codepath. Differential Revision: https://phabricator.services.mozilla.com/D318722
32 lines
1.3 KiB
C++
32 lines
1.3 KiB
C++
/* 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 "AspectRatio.h"
|
|
|
|
#include "mozilla/WritingModes.h"
|
|
|
|
namespace mozilla {
|
|
|
|
nscoord AspectRatio::ComputeRatioDependentSize(
|
|
LogicalAxis aRatioDependentAxis, const WritingMode& aWM,
|
|
nscoord aRatioDeterminingSize,
|
|
const LogicalSize& aContentBoxSizeToBoxSizingAdjust) const {
|
|
MOZ_ASSERT(*this,
|
|
"Infinite or zero ratio may have undefined behavior when "
|
|
"computing the size");
|
|
const LogicalSize& boxSizingAdjust = mUseBoxSizing == UseBoxSizing::No
|
|
? LogicalSize(aWM)
|
|
: aContentBoxSizeToBoxSizingAdjust;
|
|
return std::max(
|
|
0, aRatioDependentAxis == LogicalAxis::Inline
|
|
? ConvertToWritingMode(aWM).ApplyTo(aRatioDeterminingSize +
|
|
boxSizingAdjust.BSize(aWM)) -
|
|
boxSizingAdjust.ISize(aWM)
|
|
: ConvertToWritingMode(aWM).Inverted().ApplyTo(
|
|
aRatioDeterminingSize + boxSizingAdjust.ISize(aWM)) -
|
|
boxSizingAdjust.BSize(aWM));
|
|
}
|
|
|
|
} // namespace mozilla
|