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Bug 1818432 - Provide intrinsic size from theme for xul images that are themed but don't have any images. r=tnikkel,layout-reviewers

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This restores previous behavior of <xul:image>.

Differential Revision: https://phabricator.services.mozilla.com/D170743
This commit is contained in:
Emilio Cobos Álvarez
2023-02-23 12:49:12 +00:00
parent b556ad3df9
commit 1782a23c1a
3 changed files with 24 additions and 5 deletions
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26
layout/generic/nsImageFrame.cpp
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@@ -475,10 +475,17 @@ void nsImageFrame::DidSetComputedStyle(ComputedStyle* aOldStyle) {
//
// TODO(emilio): We might want to do the same for regular list-style-image or
// even simple content: url() changes.
if (mKind == Kind::XULImage &&
!mContent->AsElement()->HasAttr(nsGkAtoms::src) && aOldStyle &&
aOldStyle->StyleList()->mListStyleImage != StyleList()->mListStyleImage) {
UpdateXULImage();
if (mKind == Kind::XULImage) {
if (!mContent->AsElement()->HasAttr(nsGkAtoms::src) && aOldStyle &&
aOldStyle->StyleList()->mListStyleImage !=
StyleList()->mListStyleImage) {
UpdateXULImage();
}
if (!mOwnedRequest && aOldStyle &&
aOldStyle->StyleDisplay()->EffectiveAppearance() !=
StyleDisplay()->EffectiveAppearance()) {
UpdateIntrinsicSize();
}
}
// We need to update our orientation either if we had no ComputedStyle before
@@ -778,6 +785,17 @@ static IntrinsicSize ComputeIntrinsicSize(imgIContainer* aImage,
IntrinsicSize(defaultLength, defaultLength), aFrame);
}
if (aKind == nsImageFrame::Kind::XULImage && aFrame.IsThemed()) {
nsPresContext* pc = aFrame.PresContext();
// FIXME: const_cast here is a bit evil but IsThemed and so does the same.
const auto widgetSize = pc->Theme()->GetMinimumWidgetSize(
pc, const_cast<nsImageFrame*>(&aFrame),
aFrame.StyleDisplay()->EffectiveAppearance());
const IntrinsicSize intrinsicSize(
LayoutDeviceIntSize::ToAppUnits(widgetSize, pc->AppUnitsPerDevPixel()));
return containAxes.ContainIntrinsicSize(intrinsicSize, aFrame);
}
if (aFrame.ShouldShowBrokenImageIcon()) {
nscoord edgeLengthToUse = nsPresContext::CSSPixelsToAppUnits(
ICON_SIZE + (2 * (ICON_PADDING + ALT_BORDER_WIDTH)));