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Avoid crashing when no frame is found during attribute change notifications

This commit is contained in:
kipp%netscape.com 1999-02-04 16:27:38 +00:00
Родитель 17a4528838
Коммит 341045341e
3 изменённых файлов: 63 добавлений и 51 удалений
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38
content/html/style/src/nsHTMLStyleSheet.cpp
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@ -4324,23 +4324,27 @@ HTMLStyleSheetImpl::AttributeChanged(nsIPresContext* aPresContext,
RecreateFramesOnAttributeChange(aPresContext, aContent, aAttribute);
}
else if (PR_TRUE == restyle) {
nsIStyleContext* frameContext;
frame->GetStyleContext(frameContext);
NS_ASSERTION(nsnull != frameContext, "frame must have style context");
if (nsnull != frameContext) {
nsIStyleContext* parentContext = frameContext->GetParent();
frame->ReResolveStyleContext(aPresContext, parentContext);
NS_IF_RELEASE(parentContext);
NS_RELEASE(frameContext);
}
if (PR_TRUE == reflow) {
StyleChangeReflow(aPresContext, frame, aAttribute);
}
else if (PR_TRUE == render) {
ApplyRenderingChangeToTree(aPresContext, frame);
}
else { // let the frame deal with it, since we don't know how to
frame->AttributeChanged(aPresContext, aContent, aAttribute, aHint);
// If there is no frame then there is no point in re-styling it,
// is there?
if (nsnull != frame) {
nsIStyleContext* frameContext;
frame->GetStyleContext(frameContext);
NS_ASSERTION(nsnull != frameContext, "frame must have style context");
if (nsnull != frameContext) {
nsIStyleContext* parentContext = frameContext->GetParent();
frame->ReResolveStyleContext(aPresContext, parentContext);
NS_IF_RELEASE(parentContext);
NS_RELEASE(frameContext);
}
if (PR_TRUE == reflow) {
StyleChangeReflow(aPresContext, frame, aAttribute);
}
else if (PR_TRUE == render) {
ApplyRenderingChangeToTree(aPresContext, frame);
}
else { // let the frame deal with it, since we don't know how to
frame->AttributeChanged(aPresContext, aContent, aAttribute, aHint);
}
}
}

38
layout/html/style/src/nsHTMLStyleSheet.cpp
Просмотреть файл

@ -4324,23 +4324,27 @@ HTMLStyleSheetImpl::AttributeChanged(nsIPresContext* aPresContext,
RecreateFramesOnAttributeChange(aPresContext, aContent, aAttribute);
}
else if (PR_TRUE == restyle) {
nsIStyleContext* frameContext;
frame->GetStyleContext(frameContext);
NS_ASSERTION(nsnull != frameContext, "frame must have style context");
if (nsnull != frameContext) {
nsIStyleContext* parentContext = frameContext->GetParent();
frame->ReResolveStyleContext(aPresContext, parentContext);
NS_IF_RELEASE(parentContext);
NS_RELEASE(frameContext);
}
if (PR_TRUE == reflow) {
StyleChangeReflow(aPresContext, frame, aAttribute);
}
else if (PR_TRUE == render) {
ApplyRenderingChangeToTree(aPresContext, frame);
}
else { // let the frame deal with it, since we don't know how to
frame->AttributeChanged(aPresContext, aContent, aAttribute, aHint);
// If there is no frame then there is no point in re-styling it,
// is there?
if (nsnull != frame) {
nsIStyleContext* frameContext;
frame->GetStyleContext(frameContext);
NS_ASSERTION(nsnull != frameContext, "frame must have style context");
if (nsnull != frameContext) {
nsIStyleContext* parentContext = frameContext->GetParent();
frame->ReResolveStyleContext(aPresContext, parentContext);
NS_IF_RELEASE(parentContext);
NS_RELEASE(frameContext);
}
if (PR_TRUE == reflow) {
StyleChangeReflow(aPresContext, frame, aAttribute);
}
else if (PR_TRUE == render) {
ApplyRenderingChangeToTree(aPresContext, frame);
}
else { // let the frame deal with it, since we don't know how to
frame->AttributeChanged(aPresContext, aContent, aAttribute, aHint);
}
}
}

38
layout/style/nsHTMLStyleSheet.cpp
Просмотреть файл

@ -4324,23 +4324,27 @@ HTMLStyleSheetImpl::AttributeChanged(nsIPresContext* aPresContext,
RecreateFramesOnAttributeChange(aPresContext, aContent, aAttribute);
}
else if (PR_TRUE == restyle) {
nsIStyleContext* frameContext;
frame->GetStyleContext(frameContext);
NS_ASSERTION(nsnull != frameContext, "frame must have style context");
if (nsnull != frameContext) {
nsIStyleContext* parentContext = frameContext->GetParent();
frame->ReResolveStyleContext(aPresContext, parentContext);
NS_IF_RELEASE(parentContext);
NS_RELEASE(frameContext);
}
if (PR_TRUE == reflow) {
StyleChangeReflow(aPresContext, frame, aAttribute);
}
else if (PR_TRUE == render) {
ApplyRenderingChangeToTree(aPresContext, frame);
}
else { // let the frame deal with it, since we don't know how to
frame->AttributeChanged(aPresContext, aContent, aAttribute, aHint);
// If there is no frame then there is no point in re-styling it,
// is there?
if (nsnull != frame) {
nsIStyleContext* frameContext;
frame->GetStyleContext(frameContext);
NS_ASSERTION(nsnull != frameContext, "frame must have style context");
if (nsnull != frameContext) {
nsIStyleContext* parentContext = frameContext->GetParent();
frame->ReResolveStyleContext(aPresContext, parentContext);
NS_IF_RELEASE(parentContext);
NS_RELEASE(frameContext);
}
if (PR_TRUE == reflow) {
StyleChangeReflow(aPresContext, frame, aAttribute);
}
else if (PR_TRUE == render) {
ApplyRenderingChangeToTree(aPresContext, frame);
}
else { // let the frame deal with it, since we don't know how to
frame->AttributeChanged(aPresContext, aContent, aAttribute, aHint);
}
}
}