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https://github.com/mozilla/gecko-dev.git
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bug 23714 - don't resolve style for irrelevant whitespace. sr=waterson, r=rbs,hyatt
This commit is contained in:
karnaze%netscape.com
parent
accd78ff55
commit
c785e1439e
@ -3074,6 +3074,22 @@ nsCSSFrameConstructor::ConstructTableForeignFrame(nsIPresShell* aPres
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return rv;
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}
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PRBool
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NeedFrameFor(nsIFrame* aParentFrame,
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nsIContent* aChildContent)
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{
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// don't create a whitespace frame if aParentFrame doesn't want it
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nsFrameState state;
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aParentFrame->GetFrameState(&state);
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if (NS_FRAME_EXCLUDE_IGNORABLE_WHITESPACE & state) {
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if (IsOnlyWhiteSpace(aChildContent)) {
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return PR_FALSE;
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}
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}
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return PR_TRUE;
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}
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nsresult
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nsCSSFrameConstructor::TableProcessChildren(nsIPresShell* aPresShell,
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nsIPresContext* aPresContext,
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@ -3102,7 +3118,7 @@ nsCSSFrameConstructor::TableProcessChildren(nsIPresShell* aPresShell,
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while (iterator.HasMoreChildren()) {
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nsCOMPtr<nsIContent> childContent;
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iterator.NextChild(getter_AddRefs(childContent));
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if (childContent.get()) {
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if (childContent.get() && NeedFrameFor(aParentFrame, childContent.get())) {
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rv = TableProcessChild(aPresShell, aPresContext, aState, *childContent.get(), aParentFrame,
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parentFrameType.get(), parentStyleContext.get(),
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aTableCreator, aChildItems, aCaption);
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@ -4644,8 +4660,7 @@ nsCSSFrameConstructor::ConstructFrameByTag(nsIPresShell* aPresShell,
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nsIAtom* aTag,
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PRInt32 aNameSpaceID,
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nsIStyleContext* aStyleContext,
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nsFrameItems& aFrameItems,
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PRBool* aWhiteSpaceContent)
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nsFrameItems& aFrameItems)
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{
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PRBool processChildren = PR_FALSE; // whether we should process child content
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PRBool isAbsolutelyPositioned = PR_FALSE;
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@ -4661,35 +4676,17 @@ nsCSSFrameConstructor::ConstructFrameByTag(nsIPresShell* aPresShell,
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PRBool isPositionedContainingBlock = PR_FALSE;
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nsresult rv = NS_OK;
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if (aWhiteSpaceContent) {
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*aWhiteSpaceContent = PR_FALSE;
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}
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if (nsLayoutAtoms::textTagName == aTag) {
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PRBool isWhitespace = IsOnlyWhiteSpace(aContent);
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// process pending pseudo frames. whitespace doesn't have an effect.
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if (!aState.mPseudoFrames.IsEmpty() && !isWhitespace) {
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ProcessPseudoFrames(aPresContext, aState.mPseudoFrames, aFrameItems);
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}
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// exclude whitespace from table and math elements in as efficient manner as possible
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PRBool createFrame = PR_TRUE;
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if (isWhitespace) {
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nsFrameState state;
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aParentFrame->GetFrameState(&state);
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if (NS_FRAME_EXCLUDE_IGNORABLE_WHITESPACE & state) {
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createFrame = PR_FALSE;
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if (aWhiteSpaceContent) {
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*aWhiteSpaceContent = PR_TRUE;
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}
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}
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}
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if (createFrame) {
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rv = NS_NewTextFrame(aPresShell, &newFrame);
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// Text frames don't go in the content->frame hash table, because
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// they're anonymous. This keeps the hash table smaller
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addToHashTable = PR_FALSE;
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isReplaced = PR_TRUE; // XXX kipp: temporary
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}
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rv = NS_NewTextFrame(aPresShell, &newFrame);
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// Text frames don't go in the content->frame hash table, because
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// they're anonymous. This keeps the hash table smaller
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addToHashTable = PR_FALSE;
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isReplaced = PR_TRUE; // XXX kipp: temporary
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}
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else {
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// Ignore the tag if it's not HTML content
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@ -6093,7 +6090,7 @@ nsCSSFrameConstructor::BuildGfxScrollFrame (nsIPresShell* aPresShell,
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}
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nsresult
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nsCSSFrameConstructor::ConstructFrameByDisplayType(nsIPresShell* aPresShell,
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nsCSSFrameConstructor::ConstructFrameByDisplayType(nsIPresShell* aPresShell,
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nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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const nsStyleDisplay* aDisplay,
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@ -7050,7 +7047,12 @@ nsCSSFrameConstructor::ConstructFrame(nsIPresShell* aPresShell,
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{
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NS_PRECONDITION(nsnull != aParentFrame, "no parent frame");
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nsresult rv;
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nsresult rv = NS_OK;
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// don't create a whitespace frame if aParent doesn't want it
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if (!NeedFrameFor(aParentFrame, aContent)) {
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return rv;
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}
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// Get the element's tag
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nsCOMPtr<nsIAtom> tag;
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@ -7161,9 +7163,8 @@ nsCSSFrameConstructor::ConstructFrameInternal( nsIPresShell* aPresShe
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nsIFrame* lastChild = aFrameItems.lastChild;
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// Handle specific frame types
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PRBool whiteSpaceContent = PR_FALSE;
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nsresult rv = ConstructFrameByTag(aPresShell, aPresContext, aState, aContent, aParentFrame,
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aTag, aNameSpaceID, styleContext, aFrameItems, &whiteSpaceContent);
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aTag, aNameSpaceID, styleContext, aFrameItems);
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#ifdef INCLUDE_XUL
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// Failing to find a matching HTML frame, try creating a specialized
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@ -7198,8 +7199,7 @@ nsCSSFrameConstructor::ConstructFrameInternal( nsIPresShell* aPresShe
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}
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#endif
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if (NS_SUCCEEDED(rv) && !whiteSpaceContent &&
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((nsnull == aFrameItems.childList) ||
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if (NS_SUCCEEDED(rv) && ((nsnull == aFrameItems.childList) ||
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(lastChild == aFrameItems.lastChild))) {
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// When there is no explicit frame to create, assume it's a
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// container and let display style dictate the rest
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@ -496,8 +496,7 @@ protected:
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nsIAtom* aTag,
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PRInt32 aNameSpaceID,
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nsIStyleContext* aStyleContext,
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nsFrameItems& aFrameItems,
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PRBool* aWhiteSpaceContent = nsnull);
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nsFrameItems& aFrameItems);
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nsresult ConstructFrameInternal( nsIPresShell* aPresShell,
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nsIPresContext* aPresContext,
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@ -3074,6 +3074,22 @@ nsCSSFrameConstructor::ConstructTableForeignFrame(nsIPresShell* aPres
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return rv;
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}
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PRBool
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NeedFrameFor(nsIFrame* aParentFrame,
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nsIContent* aChildContent)
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{
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// don't create a whitespace frame if aParentFrame doesn't want it
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nsFrameState state;
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aParentFrame->GetFrameState(&state);
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if (NS_FRAME_EXCLUDE_IGNORABLE_WHITESPACE & state) {
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if (IsOnlyWhiteSpace(aChildContent)) {
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return PR_FALSE;
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}
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}
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return PR_TRUE;
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}
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nsresult
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nsCSSFrameConstructor::TableProcessChildren(nsIPresShell* aPresShell,
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nsIPresContext* aPresContext,
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@ -3102,7 +3118,7 @@ nsCSSFrameConstructor::TableProcessChildren(nsIPresShell* aPresShell,
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while (iterator.HasMoreChildren()) {
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nsCOMPtr<nsIContent> childContent;
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iterator.NextChild(getter_AddRefs(childContent));
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if (childContent.get()) {
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if (childContent.get() && NeedFrameFor(aParentFrame, childContent.get())) {
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rv = TableProcessChild(aPresShell, aPresContext, aState, *childContent.get(), aParentFrame,
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parentFrameType.get(), parentStyleContext.get(),
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aTableCreator, aChildItems, aCaption);
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@ -4644,8 +4660,7 @@ nsCSSFrameConstructor::ConstructFrameByTag(nsIPresShell* aPresShell,
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nsIAtom* aTag,
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PRInt32 aNameSpaceID,
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nsIStyleContext* aStyleContext,
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nsFrameItems& aFrameItems,
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PRBool* aWhiteSpaceContent)
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nsFrameItems& aFrameItems)
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{
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PRBool processChildren = PR_FALSE; // whether we should process child content
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PRBool isAbsolutelyPositioned = PR_FALSE;
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@ -4661,35 +4676,17 @@ nsCSSFrameConstructor::ConstructFrameByTag(nsIPresShell* aPresShell,
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PRBool isPositionedContainingBlock = PR_FALSE;
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nsresult rv = NS_OK;
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if (aWhiteSpaceContent) {
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*aWhiteSpaceContent = PR_FALSE;
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}
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if (nsLayoutAtoms::textTagName == aTag) {
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PRBool isWhitespace = IsOnlyWhiteSpace(aContent);
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// process pending pseudo frames. whitespace doesn't have an effect.
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if (!aState.mPseudoFrames.IsEmpty() && !isWhitespace) {
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ProcessPseudoFrames(aPresContext, aState.mPseudoFrames, aFrameItems);
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}
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// exclude whitespace from table and math elements in as efficient manner as possible
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PRBool createFrame = PR_TRUE;
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if (isWhitespace) {
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nsFrameState state;
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aParentFrame->GetFrameState(&state);
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if (NS_FRAME_EXCLUDE_IGNORABLE_WHITESPACE & state) {
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createFrame = PR_FALSE;
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if (aWhiteSpaceContent) {
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*aWhiteSpaceContent = PR_TRUE;
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}
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}
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}
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if (createFrame) {
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rv = NS_NewTextFrame(aPresShell, &newFrame);
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// Text frames don't go in the content->frame hash table, because
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// they're anonymous. This keeps the hash table smaller
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addToHashTable = PR_FALSE;
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isReplaced = PR_TRUE; // XXX kipp: temporary
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}
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rv = NS_NewTextFrame(aPresShell, &newFrame);
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// Text frames don't go in the content->frame hash table, because
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// they're anonymous. This keeps the hash table smaller
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addToHashTable = PR_FALSE;
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isReplaced = PR_TRUE; // XXX kipp: temporary
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}
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else {
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// Ignore the tag if it's not HTML content
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@ -6093,7 +6090,7 @@ nsCSSFrameConstructor::BuildGfxScrollFrame (nsIPresShell* aPresShell,
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}
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nsresult
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nsCSSFrameConstructor::ConstructFrameByDisplayType(nsIPresShell* aPresShell,
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nsCSSFrameConstructor::ConstructFrameByDisplayType(nsIPresShell* aPresShell,
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nsIPresContext* aPresContext,
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nsFrameConstructorState& aState,
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const nsStyleDisplay* aDisplay,
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@ -7050,7 +7047,12 @@ nsCSSFrameConstructor::ConstructFrame(nsIPresShell* aPresShell,
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{
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NS_PRECONDITION(nsnull != aParentFrame, "no parent frame");
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nsresult rv;
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nsresult rv = NS_OK;
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// don't create a whitespace frame if aParent doesn't want it
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if (!NeedFrameFor(aParentFrame, aContent)) {
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return rv;
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}
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// Get the element's tag
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nsCOMPtr<nsIAtom> tag;
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@ -7161,9 +7163,8 @@ nsCSSFrameConstructor::ConstructFrameInternal( nsIPresShell* aPresShe
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nsIFrame* lastChild = aFrameItems.lastChild;
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// Handle specific frame types
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PRBool whiteSpaceContent = PR_FALSE;
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nsresult rv = ConstructFrameByTag(aPresShell, aPresContext, aState, aContent, aParentFrame,
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aTag, aNameSpaceID, styleContext, aFrameItems, &whiteSpaceContent);
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aTag, aNameSpaceID, styleContext, aFrameItems);
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#ifdef INCLUDE_XUL
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// Failing to find a matching HTML frame, try creating a specialized
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@ -7198,8 +7199,7 @@ nsCSSFrameConstructor::ConstructFrameInternal( nsIPresShell* aPresShe
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}
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#endif
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if (NS_SUCCEEDED(rv) && !whiteSpaceContent &&
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((nsnull == aFrameItems.childList) ||
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if (NS_SUCCEEDED(rv) && ((nsnull == aFrameItems.childList) ||
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(lastChild == aFrameItems.lastChild))) {
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// When there is no explicit frame to create, assume it's a
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// container and let display style dictate the rest
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@ -496,8 +496,7 @@ protected:
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nsIAtom* aTag,
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PRInt32 aNameSpaceID,
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nsIStyleContext* aStyleContext,
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nsFrameItems& aFrameItems,
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PRBool* aWhiteSpaceContent = nsnull);
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nsFrameItems& aFrameItems);
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nsresult ConstructFrameInternal( nsIPresShell* aPresShell,
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nsIPresContext* aPresContext,
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