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-rw-r--r--layout/base/RestyleManager.cpp10
-rw-r--r--layout/base/nsCSSFrameConstructor.cpp148
-rw-r--r--layout/base/nsCSSFrameConstructor.h3
-rw-r--r--layout/forms/nsColorControlFrame.cpp7
-rw-r--r--layout/forms/nsMeterFrame.cpp9
-rw-r--r--layout/forms/nsNumberControlFrame.cpp33
-rw-r--r--layout/forms/nsNumberControlFrame.h3
-rw-r--r--layout/forms/nsProgressFrame.cpp7
-rw-r--r--layout/forms/nsRangeFrame.cpp8
-rw-r--r--layout/forms/nsTextControlFrame.cpp26
-rw-r--r--layout/generic/nsFrame.cpp30
-rw-r--r--layout/generic/nsIAnonymousContentCreator.h5
-rw-r--r--layout/reftests/forms/input/number/number-style-inheritance-ref.html6
-rw-r--r--layout/reftests/forms/input/number/number-style-inheritance.html6
-rw-r--r--layout/reftests/forms/input/number/reftest.list3
-rw-r--r--layout/style/res/forms.css2
16 files changed, 199 insertions, 107 deletions
diff --git a/layout/base/RestyleManager.cpp b/layout/base/RestyleManager.cpp
index 124b5535e..c3eeb8c71 100644
--- a/layout/base/RestyleManager.cpp
+++ b/layout/base/RestyleManager.cpp
@@ -2341,6 +2341,16 @@ ElementRestyler::ComputeRestyleResultFromFrame(nsIFrame* aSelf,
return;
}
+ // Each NAC element inherits from the first non-NAC ancestor, so child
+ // NAC may inherit from our parent instead of us. That means we can't
+ // cull traversal if our style context didn't change.
+ if (aSelf->GetContent() && aSelf->GetContent()->IsNativeAnonymous()) {
+ LOG_RESTYLE_CONTINUE("native anonymous content");
+ aRestyleResult = RestyleResult::eContinue;
+ aCanStopWithStyleChange = false;
+ return;
+ }
+
// Style changes might have moved children between the two nsLetterFrames
// (the one matching ::first-letter and the one containing the rest of the
// content). Continue restyling to the children of the nsLetterFrame so
diff --git a/layout/base/nsCSSFrameConstructor.cpp b/layout/base/nsCSSFrameConstructor.cpp
index 5a1036232..a2dec55e1 100644
--- a/layout/base/nsCSSFrameConstructor.cpp
+++ b/layout/base/nsCSSFrameConstructor.cpp
@@ -1865,6 +1865,7 @@ nsCSSFrameConstructor::CreateGeneratedContentItem(nsFrameConstructorState& aStat
if (NS_FAILED(rv))
return;
container->SetIsNativeAnonymousRoot();
+ container->SetPseudoElementType(aPseudoElement);
// If the parent is in a shadow tree, make sure we don't
// bind with a document because shadow roots and its descendants
@@ -4161,6 +4162,13 @@ ConnectAnonymousTreeDescendants(nsIContent* aParent,
}
}
+void SetNativeAnonymousBitOnDescendants(nsIContent *aRoot)
+{
+ for (nsIContent* curr = aRoot; curr; curr = curr->GetNextNode(aRoot)) {
+ curr->SetFlags(NODE_IS_NATIVE_ANONYMOUS);
+ }
+}
+
nsresult
nsCSSFrameConstructor::GetAnonymousContent(nsIContent* aParent,
nsIFrame* aParentFrame,
@@ -4182,16 +4190,17 @@ nsCSSFrameConstructor::GetAnonymousContent(nsIContent* aParent,
nsIContent* content = aContent[i].mContent;
NS_ASSERTION(content, "null anonymous content?");
+ ConnectAnonymousTreeDescendants(content, aContent[i].mChildren);
+
// least-surprise CSS binding until we do the SVG specified
// cascading rules for <svg:use> - bug 265894
if (aParentFrame->GetType() == nsGkAtoms::svgUseFrame) {
content->SetFlags(NODE_IS_ANONYMOUS_ROOT);
} else {
content->SetIsNativeAnonymousRoot();
+ SetNativeAnonymousBitOnDescendants(content);
}
- ConnectAnonymousTreeDescendants(content, aContent[i].mChildren);
-
bool anonContentIsEditable = content->HasFlag(NODE_IS_EDITABLE);
// If the parent is in a shadow tree, make sure we don't
@@ -4216,11 +4225,9 @@ nsCSSFrameConstructor::GetAnonymousContent(nsIContent* aParent,
}
if (ServoStyleSet* styleSet = mPresShell->StyleSet()->GetAsServo()) {
- // Eagerly compute styles for the anonymous content tree, but only do so
- // if the content doesn't have an explicit style context (if it does, we
- // don't need the normal computed values).
+ // Eagerly compute styles for the anonymous content tree.
for (auto& info : aContent) {
- if (!info.mStyleContext) {
+ if (info.mContent->IsElement()) {
styleSet->StyleNewSubtree(info.mContent);
}
}
@@ -4999,22 +5006,35 @@ nsCSSFrameConstructor::ResolveStyleContext(const InsertionPoint& aInsertion,
already_AddRefed<nsStyleContext>
nsCSSFrameConstructor::ResolveStyleContext(nsStyleContext* aParentStyleContext,
nsIContent* aContent,
- nsFrameConstructorState* aState)
+ nsFrameConstructorState* aState,
+ Element* aOriginatingElementOrNull)
{
StyleSetHandle styleSet = mPresShell->StyleSet();
aContent->OwnerDoc()->FlushPendingLinkUpdates();
RefPtr<nsStyleContext> result;
if (aContent->IsElement()) {
- if (aState) {
- result = styleSet->ResolveStyleFor(aContent->AsElement(),
- aParentStyleContext,
- aState->mTreeMatchContext);
+ auto pseudoType = aContent->AsElement()->GetPseudoElementType();
+ if (pseudoType == CSSPseudoElementType::NotPseudo) {
+ MOZ_ASSERT(!aOriginatingElementOrNull);
+ if (aState) {
+ result = styleSet->ResolveStyleFor(aContent->AsElement(),
+ aParentStyleContext,
+ aState->mTreeMatchContext);
+ } else {
+ result = styleSet->ResolveStyleFor(aContent->AsElement(),
+ aParentStyleContext);
+ }
} else {
- result = styleSet->ResolveStyleFor(aContent->AsElement(),
- aParentStyleContext);
+ MOZ_ASSERT(aOriginatingElementOrNull);
+ MOZ_ASSERT(aContent->IsInNativeAnonymousSubtree());
+ result = styleSet->ResolvePseudoElementStyle(aOriginatingElementOrNull,
+ pseudoType,
+ aParentStyleContext,
+ aContent->AsElement());
}
} else {
+ MOZ_ASSERT(!aOriginatingElementOrNull);
NS_ASSERTION(aContent->IsNodeOfType(nsINode::eTEXT),
"shouldn't waste time creating style contexts for "
"comments and processing instructions");
@@ -10643,23 +10663,95 @@ nsCSSFrameConstructor::AddFCItemsForAnonymousContent(
RefPtr<nsStyleContext> styleContext;
TreeMatchContext::AutoParentDisplayBasedStyleFixupSkipper
parentDisplayBasedStyleFixupSkipper(aState.mTreeMatchContext);
- if (aAnonymousItems[i].mStyleContext) {
- // If we have an explicit style context, that means that the anonymous
- // content creator had its own plan for the style, and doesn't need the
- // computed style obtained by cascading this content as a normal node.
- // This happens when a native anonymous node is used to implement a
- // pseudo-element. Allowing Servo to traverse these nodes would be wasted
- // work, so assert that we didn't do that.
- MOZ_ASSERT_IF(content->IsStyledByServo(), !content->HasServoData());
- styleContext = aAnonymousItems[i].mStyleContext.forget();
+
+ // Make sure we eagerly performed the servo cascade when the anonymous
+ // nodes were created.
+ MOZ_ASSERT_IF(content->IsStyledByServo() && content->IsElement(),
+ content->AsElement()->HasServoData());
+
+ // Determine whether this NAC is pseudo-implementing.
+ nsIAtom* pseudo = nullptr;
+ if (content->IsElement()) {
+ auto pseudoType = content->AsElement()->GetPseudoElementType();
+ if (pseudoType != CSSPseudoElementType::NotPseudo) {
+ pseudo = nsCSSPseudoElements::GetPseudoAtom(pseudoType);
+ }
+ }
+
+ // Determine the appropriate parent style for this NAC, and if the NAC
+ // implements a pseudo-element, the appropriate originating element
+ // (that is to say, the element to the left of the ::pseudo-element in
+ // the selector). This is all rather tricky, and merits some discussion.
+ //
+ // First, it's important to note that author stylesheets generally do not
+ // apply to elements in native-anonymous subtrees. The exceptions to
+ // this are web-exposed pseudo-elements, where authors can style the
+ // pseudo-implementing NAC if the originating element is not itself in a NAC
+ // subtree.
+ //
+ // For this reason, it's very important that we avoid using a style parent
+ // that is inside a NAC subtree together with an originating element that
+ // is not inside a NAC subtree, since that would allow authors to
+ // explicitly inherit styles from internal elements, potentially making
+ // the NAC hierarchy observable. To ensure this, and generally simplify
+ // things, we always set the originating element to the style parent.
+ //
+ // As a consequence of the above, all web-exposed pseudo-elements (which,
+ // by definition, must have a content-accessible originating element) must
+ // also inherit style from that same content-accessible element. To avoid
+ // unintuitive behavior differences between NAC elements that do and don't
+ // correspond to web-exposed pseudo-elements, we follow this protocol for
+ // all NAC, pseudo-implementing or not.
+ //
+ // However, things get tricky with the <video> element, where we have a
+ // bunch of XBL-generated anonymous content descending from a native-
+ // anonymous XULElement. The XBL elements inherit style from their
+ // flattened tree parent, because that's how XBL works. But then we need
+ // to figure out what to do when one of those anonymous XBL elements
+ // (like an <input> element) generates its own (possibly pseudo-element-
+ // implementing) NAC.
+ //
+ // In this case, we inherit style from the XBL-generated NAC-creating
+ // element, rather than the <video> element. There are a number of good
+ // reasons for this. First, inheriting from the great-grandparent while
+ // the parent inherits from the grandparent would be bizarre at best.
+ // Second, exposing pseudo-elements from elements within our particular
+ // XBL implementation would allow content styles to (un)intentionally
+ // alter the video controls, which would be very bad. Third, our UA
+ // stylesheets have selectors like:
+ //
+ // input[type=range][orient=horizontal]::-moz-range-track
+ //
+ // and we need to make sure that the originating element is the <input>,
+ // not the <video>, because that's where the |orient| attribute lives.
+ //
+ // The upshot of all of this is that, to find the style parent (and
+ // originating element, if applicable), we walk up our parent chain to the
+ // first element that is not itself NAC (distinct from whether it happens
+ // to be in a NAC subtree).
+ //
+ // To implement all this, we need to pass the correct parent style context
+ // here because SetPrimaryFrame() may not have been called on the content
+ // yet and thus ResolveStyleContext can't find it otherwise.
+ //
+ // We don't need to worry about display:contents here, because such
+ // elements don't get a frame and thus can't generate NAC. But we do need
+ // to worry about anonymous boxes, which CorrectStyleParentFrame handles
+ // for us.
+ nsIFrame* inheritFrame = aFrame;
+ while (inheritFrame->GetContent()->IsNativeAnonymous()) {
+ inheritFrame = inheritFrame->GetParent();
+ }
+ if (inheritFrame->GetType() == nsGkAtoms::canvasFrame) {
+ // CorrectStyleParentFrame returns nullptr if the prospective parent is
+ // the canvas frame, so avoid calling it in that situation.
} else {
- // If we don't have an explicit style context, that means we need the
- // ordinary computed values. Make sure we eagerly cascaded them when the
- // anonymous nodes were created.
- MOZ_ASSERT_IF(content->IsStyledByServo() && content->IsElement(),
- content->HasServoData());
- styleContext = ResolveStyleContext(aFrame, content, &aState);
+ inheritFrame = nsFrame::CorrectStyleParentFrame(inheritFrame, pseudo);
}
+ Element* originating = pseudo ? inheritFrame->GetContent()->AsElement() : nullptr;
+
+ styleContext =
+ ResolveStyleContext(inheritFrame->StyleContext(), content, &aState, originating);
nsTArray<nsIAnonymousContentCreator::ContentInfo>* anonChildren = nullptr;
if (!aAnonymousItems[i].mChildren.IsEmpty()) {
diff --git a/layout/base/nsCSSFrameConstructor.h b/layout/base/nsCSSFrameConstructor.h
index 89e5594e4..db0d92566 100644
--- a/layout/base/nsCSSFrameConstructor.h
+++ b/layout/base/nsCSSFrameConstructor.h
@@ -364,7 +364,8 @@ private:
already_AddRefed<nsStyleContext>
ResolveStyleContext(nsStyleContext* aParentStyleContext,
nsIContent* aContent,
- nsFrameConstructorState* aState);
+ nsFrameConstructorState* aState,
+ Element* aOriginatingElementOrNull = nullptr);
// Add the frame construction items for the given aContent and aParentFrame
// to the list. This might add more than one item in some rare cases.
diff --git a/layout/forms/nsColorControlFrame.cpp b/layout/forms/nsColorControlFrame.cpp
index e0bae43a9..63aee814a 100644
--- a/layout/forms/nsColorControlFrame.cpp
+++ b/layout/forms/nsColorControlFrame.cpp
@@ -67,6 +67,7 @@ nsColorControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
{
nsCOMPtr<nsIDocument> doc = mContent->GetComposedDoc();
mColorContent = doc->CreateHTMLElement(nsGkAtoms::div);
+ mColorContent->SetPseudoElementType(CSSPseudoElementType::mozColorSwatch);
// Mark the element to be native anonymous before setting any attributes.
mColorContent->SetIsNativeAnonymousRoot();
@@ -74,11 +75,7 @@ nsColorControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
nsresult rv = UpdateColor();
NS_ENSURE_SUCCESS(rv, rv);
- CSSPseudoElementType pseudoType = CSSPseudoElementType::mozColorSwatch;
- RefPtr<nsStyleContext> newStyleContext = PresContext()->StyleSet()->
- ResolvePseudoElementStyle(mContent->AsElement(), pseudoType,
- StyleContext(), mColorContent->AsElement());
- if (!aElements.AppendElement(ContentInfo(mColorContent, newStyleContext))) {
+ if (!aElements.AppendElement(mColorContent)) {
return NS_ERROR_OUT_OF_MEMORY;
}
diff --git a/layout/forms/nsMeterFrame.cpp b/layout/forms/nsMeterFrame.cpp
index 1f3bd8022..6ef362820 100644
--- a/layout/forms/nsMeterFrame.cpp
+++ b/layout/forms/nsMeterFrame.cpp
@@ -75,14 +75,9 @@ nsMeterFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
mBarDiv = doc->CreateHTMLElement(nsGkAtoms::div);
// Associate ::-moz-meter-bar pseudo-element to the anonymous child.
- CSSPseudoElementType pseudoType = CSSPseudoElementType::mozMeterBar;
- RefPtr<nsStyleContext> newStyleContext = PresContext()->StyleSet()->
- ResolvePseudoElementStyle(mContent->AsElement(), pseudoType,
- StyleContext(), mBarDiv->AsElement());
+ mBarDiv->SetPseudoElementType(CSSPseudoElementType::mozMeterBar);
- if (!aElements.AppendElement(ContentInfo(mBarDiv, newStyleContext))) {
- return NS_ERROR_OUT_OF_MEMORY;
- }
+ aElements.AppendElement(mBarDiv);
return NS_OK;
}
diff --git a/layout/forms/nsNumberControlFrame.cpp b/layout/forms/nsNumberControlFrame.cpp
index 9724109cb..64e3df0fe 100644
--- a/layout/forms/nsNumberControlFrame.cpp
+++ b/layout/forms/nsNumberControlFrame.cpp
@@ -325,27 +325,15 @@ nsresult
nsNumberControlFrame::MakeAnonymousElement(Element** aResult,
nsTArray<ContentInfo>& aElements,
nsIAtom* aTagName,
- CSSPseudoElementType aPseudoType,
- nsStyleContext* aParentContext)
+ CSSPseudoElementType aPseudoType)
{
// Get the NodeInfoManager and tag necessary to create the anonymous divs.
nsCOMPtr<nsIDocument> doc = mContent->GetComposedDoc();
RefPtr<Element> resultElement = doc->CreateHTMLElement(aTagName);
+ resultElement->SetPseudoElementType(aPseudoType);
- // If we legitimately fail this assertion and need to allow
- // non-pseudo-element anonymous children, then we'll need to add a branch
- // that calls ResolveStyleFor((*aResult)->AsElement(), aParentContext)") to
- // set newStyleContext.
- NS_ASSERTION(aPseudoType != CSSPseudoElementType::NotPseudo,
- "Expecting anonymous children to all be pseudo-elements");
// Associate the pseudo-element with the anonymous child
- RefPtr<nsStyleContext> newStyleContext =
- PresContext()->StyleSet()->ResolvePseudoElementStyle(mContent->AsElement(),
- aPseudoType,
- aParentContext,
- resultElement);
-
- if (!aElements.AppendElement(ContentInfo(resultElement, newStyleContext))) {
+ if (!aElements.AppendElement(resultElement)) {
return NS_ERROR_OUT_OF_MEMORY;
}
@@ -382,8 +370,7 @@ nsNumberControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
rv = MakeAnonymousElement(getter_AddRefs(mOuterWrapper),
aElements,
nsGkAtoms::div,
- CSSPseudoElementType::mozNumberWrapper,
- mStyleContext);
+ CSSPseudoElementType::mozNumberWrapper);
NS_ENSURE_SUCCESS(rv, rv);
ContentInfo& outerWrapperCI = aElements.LastElement();
@@ -392,8 +379,7 @@ nsNumberControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
rv = MakeAnonymousElement(getter_AddRefs(mTextField),
outerWrapperCI.mChildren,
nsGkAtoms::input,
- CSSPseudoElementType::mozNumberText,
- outerWrapperCI.mStyleContext);
+ CSSPseudoElementType::mozNumberText);
NS_ENSURE_SUCCESS(rv, rv);
mTextField->SetAttr(kNameSpaceID_None, nsGkAtoms::type,
@@ -442,8 +428,7 @@ nsNumberControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
rv = MakeAnonymousElement(getter_AddRefs(mSpinBox),
outerWrapperCI.mChildren,
nsGkAtoms::div,
- CSSPseudoElementType::mozNumberSpinBox,
- outerWrapperCI.mStyleContext);
+ CSSPseudoElementType::mozNumberSpinBox);
NS_ENSURE_SUCCESS(rv, rv);
ContentInfo& spinBoxCI = outerWrapperCI.mChildren.LastElement();
@@ -452,16 +437,14 @@ nsNumberControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
rv = MakeAnonymousElement(getter_AddRefs(mSpinUp),
spinBoxCI.mChildren,
nsGkAtoms::div,
- CSSPseudoElementType::mozNumberSpinUp,
- spinBoxCI.mStyleContext);
+ CSSPseudoElementType::mozNumberSpinUp);
NS_ENSURE_SUCCESS(rv, rv);
// Create the ::-moz-number-spin-down pseudo-element:
rv = MakeAnonymousElement(getter_AddRefs(mSpinDown),
spinBoxCI.mChildren,
nsGkAtoms::div,
- CSSPseudoElementType::mozNumberSpinDown,
- spinBoxCI.mStyleContext);
+ CSSPseudoElementType::mozNumberSpinDown);
return rv;
}
diff --git a/layout/forms/nsNumberControlFrame.h b/layout/forms/nsNumberControlFrame.h
index 47e32ad65..5396e7170 100644
--- a/layout/forms/nsNumberControlFrame.h
+++ b/layout/forms/nsNumberControlFrame.h
@@ -170,8 +170,7 @@ private:
nsresult MakeAnonymousElement(Element** aResult,
nsTArray<ContentInfo>& aElements,
nsIAtom* aTagName,
- CSSPseudoElementType aPseudoType,
- nsStyleContext* aParentContext);
+ CSSPseudoElementType aPseudoType);
class SyncDisabledStateEvent;
friend class SyncDisabledStateEvent;
diff --git a/layout/forms/nsProgressFrame.cpp b/layout/forms/nsProgressFrame.cpp
index 2445defd3..6d6db7a1f 100644
--- a/layout/forms/nsProgressFrame.cpp
+++ b/layout/forms/nsProgressFrame.cpp
@@ -72,12 +72,9 @@ nsProgressFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
mBarDiv = doc->CreateHTMLElement(nsGkAtoms::div);
// Associate ::-moz-progress-bar pseudo-element to the anonymous child.
- CSSPseudoElementType pseudoType = CSSPseudoElementType::mozProgressBar;
- RefPtr<nsStyleContext> newStyleContext = PresContext()->StyleSet()->
- ResolvePseudoElementStyle(mContent->AsElement(), pseudoType,
- StyleContext(), mBarDiv->AsElement());
+ mBarDiv->SetPseudoElementType(CSSPseudoElementType::mozProgressBar);
- if (!aElements.AppendElement(ContentInfo(mBarDiv, newStyleContext))) {
+ if (!aElements.AppendElement(mBarDiv)) {
return NS_ERROR_OUT_OF_MEMORY;
}
diff --git a/layout/forms/nsRangeFrame.cpp b/layout/forms/nsRangeFrame.cpp
index 7590da066..99faa6043 100644
--- a/layout/forms/nsRangeFrame.cpp
+++ b/layout/forms/nsRangeFrame.cpp
@@ -119,13 +119,9 @@ nsRangeFrame::MakeAnonymousDiv(Element** aResult,
RefPtr<Element> resultElement = doc->CreateHTMLElement(nsGkAtoms::div);
// Associate the pseudo-element with the anonymous child.
- RefPtr<nsStyleContext> newStyleContext =
- PresContext()->StyleSet()->ResolvePseudoElementStyle(mContent->AsElement(),
- aPseudoType,
- StyleContext(),
- resultElement);
+ resultElement->SetPseudoElementType(aPseudoType);
- if (!aElements.AppendElement(ContentInfo(resultElement, newStyleContext))) {
+ if (!aElements.AppendElement(resultElement)) {
return NS_ERROR_OUT_OF_MEMORY;
}
diff --git a/layout/forms/nsTextControlFrame.cpp b/layout/forms/nsTextControlFrame.cpp
index f8fdf3420..aa3185d39 100644
--- a/layout/forms/nsTextControlFrame.cpp
+++ b/layout/forms/nsTextControlFrame.cpp
@@ -352,32 +352,12 @@ nsTextControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
// Create the placeholder anonymous content if needed.
if (mUsePlaceholder) {
- nsIContent* placeholderNode = txtCtrl->CreatePlaceholderNode();
+ Element* placeholderNode = txtCtrl->CreatePlaceholderNode();
NS_ENSURE_TRUE(placeholderNode, NS_ERROR_OUT_OF_MEMORY);
// Associate ::placeholder pseudo-element with the placeholder node.
- CSSPseudoElementType pseudoType = CSSPseudoElementType::placeholder;
-
- // If this is a text input inside a number input then we want to use the
- // main number input as the source of style for the placeholder frame.
- nsIFrame* mainInputFrame = this;
- if (StyleContext()->GetPseudoType() == CSSPseudoElementType::mozNumberText) {
- do {
- mainInputFrame = mainInputFrame->GetParent();
- } while (mainInputFrame &&
- mainInputFrame->GetType() != nsGkAtoms::numberControlFrame);
- MOZ_ASSERT(mainInputFrame);
- }
-
- RefPtr<nsStyleContext> placeholderStyleContext =
- PresContext()->StyleSet()->ResolvePseudoElementStyle(
- mainInputFrame->GetContent()->AsElement(), pseudoType, StyleContext(),
- placeholderNode->AsElement());
-
- if (!aElements.AppendElement(ContentInfo(placeholderNode,
- placeholderStyleContext))) {
- return NS_ERROR_OUT_OF_MEMORY;
- }
+ placeholderNode->SetPseudoElementType(CSSPseudoElementType::placeholder);
+ aElements.AppendElement(placeholderNode);
if (!IsSingleLineTextControl()) {
// For textareas, UpdateValueDisplay doesn't initialize the visibility
diff --git a/layout/generic/nsFrame.cpp b/layout/generic/nsFrame.cpp
index 0d0c7108c..ba1e9567a 100644
--- a/layout/generic/nsFrame.cpp
+++ b/layout/generic/nsFrame.cpp
@@ -8918,6 +8918,8 @@ GetIBSplitSiblingForAnonymousBlock(const nsIFrame* aFrame)
*
* Also skip anonymous scrolled-content parents; inherit directly from the
* outer scroll frame.
+ *
+ * Also skip NAC parents if the child frame is NAC.
*/
static nsIFrame*
GetCorrectedParent(const nsIFrame* aFrame)
@@ -8943,6 +8945,31 @@ GetCorrectedParent(const nsIFrame* aFrame)
if (pseudo == nsCSSAnonBoxes::tableWrapper) {
pseudo = aFrame->PrincipalChildList().FirstChild()->StyleContext()->GetPseudo();
}
+
+ // Prevent NAC from inheriting NAC. This partially duplicates the logic
+ // implemented in nsCSSFrameConstructor::AddFCItemsForAnonymousContent, and is
+ // necessary so that restyle inherits style contexts in the same way as the
+ // initial styling performed in frame construction.
+ //
+ // It would be nice to put it in CorrectStyleParentFrame and therefore share
+ // it, but that would lose the information of whether the _child_ is NAC,
+ // since CorrectStyleParentFrame only knows about the prospective _parent_.
+ // This duplication and complexity will go away when we fully switch to the
+ // Servo style system, where all this can be handled much more naturally.
+ //
+ // We need to take special care not to disrupt the style inheritance of frames
+ // whose content is NAC but who implement a pseudo (like an anonymous
+ // box, or a non-NAC-backed pseudo like ::first-line) that does not match the
+ // one that the NAC implements, if any.
+ nsIContent* content = aFrame->GetContent();
+ Element* element = content->IsElement() ? content->AsElement() : nullptr;
+ if (element && element->IsNativeAnonymous() &&
+ element->GetPseudoElementType() == aFrame->StyleContext()->GetPseudoType()) {
+ while (parent->GetContent() && parent->GetContent()->IsNativeAnonymous()) {
+ parent = parent->GetParent();
+ }
+ }
+
return nsFrame::CorrectStyleParentFrame(parent, pseudo);
}
@@ -9013,6 +9040,9 @@ nsFrame::DoGetParentStyleContext(nsIFrame** aProviderFrame) const
{
*aProviderFrame = nullptr;
nsFrameManager* fm = PresContext()->FrameManager();
+
+ // Handle display:contents and the root frame, when there's no parent frame
+ // to inherit from.
if (MOZ_LIKELY(mContent)) {
nsIContent* parentContent = mContent->GetFlattenedTreeParent();
if (MOZ_LIKELY(parentContent)) {
diff --git a/layout/generic/nsIAnonymousContentCreator.h b/layout/generic/nsIAnonymousContentCreator.h
index 2728bb4bb..5167178b8 100644
--- a/layout/generic/nsIAnonymousContentCreator.h
+++ b/layout/generic/nsIAnonymousContentCreator.h
@@ -34,12 +34,7 @@ public:
mContent(aContent)
{}
- ContentInfo(nsIContent* aContent, nsStyleContext* aStyleContext) :
- mContent(aContent), mStyleContext(aStyleContext)
- {}
-
nsIContent* mContent;
- RefPtr<nsStyleContext> mStyleContext;
nsTArray<ContentInfo> mChildren;
};
diff --git a/layout/reftests/forms/input/number/number-style-inheritance-ref.html b/layout/reftests/forms/input/number/number-style-inheritance-ref.html
new file mode 100644
index 000000000..00c8dba43
--- /dev/null
+++ b/layout/reftests/forms/input/number/number-style-inheritance-ref.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<html>
+ <body>
+ <input type="text" style="width: 100px; text-decoration: underline;" value="1234">
+ </body>
+</html>
diff --git a/layout/reftests/forms/input/number/number-style-inheritance.html b/layout/reftests/forms/input/number/number-style-inheritance.html
new file mode 100644
index 000000000..b21ff1f1c
--- /dev/null
+++ b/layout/reftests/forms/input/number/number-style-inheritance.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<html>
+ <body>
+ <input type="number" style="width: 100px; -moz-appearance: textfield; text-decoration: underline;" value="1234">
+ </body>
+</html>
diff --git a/layout/reftests/forms/input/number/reftest.list b/layout/reftests/forms/input/number/reftest.list
index ecf05ce15..bd07e274c 100644
--- a/layout/reftests/forms/input/number/reftest.list
+++ b/layout/reftests/forms/input/number/reftest.list
@@ -52,3 +52,6 @@ fuzzy-if(skiaContent,2,5) needs-focus == focus-handling.html focus-handling-ref.
fuzzy(128,4) == number-reframe-anon-text-field.html number-reframe-anon-text-field-ref.html
== pseudo-classes.html about:blank
+
+# Style inheritance:
+== number-style-inheritance.html number-style-inheritance-ref.html
diff --git a/layout/style/res/forms.css b/layout/style/res/forms.css
index 95025221d..c91c2f739 100644
--- a/layout/style/res/forms.css
+++ b/layout/style/res/forms.css
@@ -1099,6 +1099,7 @@ input[type=number]::-moz-number-spin-box {
}
input[type=number]::-moz-number-spin-up {
+ writing-mode: horizontal-tb;
-moz-appearance: spinner-upbutton;
display: block; /* bug 926670 */
flex: none;
@@ -1116,6 +1117,7 @@ input[type=number]::-moz-number-spin-up {
}
input[type=number]::-moz-number-spin-down {
+ writing-mode: horizontal-tb;
-moz-appearance: spinner-downbutton;
display: block; /* bug 926670 */
flex: none;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 00:29:21 +0000