зеркало из https://github.com/mozilla/pjs.git
r=troy. Siblings of frames get traversed iteratively during capturing/restoring of state. Earlier they were traversed recursively which was causing the call stack to grow too large.
This commit is contained in:
nisheeth%netscape.com
Родитель
1f43c92e4f
Коммит
2b68bfc6a2
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@ -1349,14 +1349,16 @@ FrameManager::ComputeStyleChangeFor(nsIPresContext& aPresContext,
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}
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NS_IMETHODIMP
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FrameManager::CaptureFrameState(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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static nsresult
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CaptureFrameStateFor(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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{
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nsresult rv = NS_OK;
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NS_PRECONDITION(nsnull != aFrame && nsnull != aState, "null parameters passed in");
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// See if the frame is stateful.
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nsCOMPtr<nsIStatefulFrame> statefulFrame = do_QueryInterface(aFrame);
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// Frames are not ref-counted so no addref/release is required on statefulFrame.
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nsIStatefulFrame* statefulFrame = nsnull;
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aFrame->QueryInterface(nsIStatefulFrame::GetIID(), (void**) &statefulFrame);
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if (nsnull != statefulFrame) {
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// If so, get the content ID, state type and the state and
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// add an association between (ID, type) and (state) to the
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@ -1380,36 +1382,45 @@ FrameManager::CaptureFrameState(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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}
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}
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// XXX We are only going through the principal child list right now.
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// Need to talk to Troy to find out about other kinds of
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// child lists and whether they will contain stateful frames.
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// (psl) YES, you need to iterate ALL child lists
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// Capture frame state for the first child
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nsIFrame* child = nsnull;
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rv = aFrame->FirstChild(nsnull, &child);
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if (NS_SUCCEEDED(rv) && nsnull != child) {
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rv = CaptureFrameState(child, aState);
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}
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// Capture frame state for the next sibling
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nsIFrame* sibling = nsnull;
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rv = aFrame->GetNextSibling(&sibling);
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if (NS_SUCCEEDED(rv) && nsnull != sibling) {
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rv = CaptureFrameState(sibling, aState);
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}
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return rv;
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}
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NS_IMETHODIMP
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FrameManager::RestoreFrameState(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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FrameManager::CaptureFrameState(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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{
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nsresult rv = NS_OK;
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NS_PRECONDITION(nsnull != aFrame && nsnull != aState, "null parameters passed in");
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rv = CaptureFrameStateFor(aFrame, aState);
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// Now capture state recursively for the frame hierarchy rooted at aFrame
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nsIAtom* childListName = nsnull;
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PRInt32 childListIndex = 0;
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do {
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nsIFrame* childFrame;
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aFrame->FirstChild(childListName, &childFrame);
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while (childFrame) {
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rv = CaptureFrameState(childFrame, aState);
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// Get the next sibling child frame
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childFrame->GetNextSibling(&childFrame);
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}
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NS_IF_RELEASE(childListName);
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aFrame->GetAdditionalChildListName(childListIndex++, &childListName);
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} while (childListName);
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return rv;
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}
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static nsresult
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RestoreFrameStateFor(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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{
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nsresult rv = NS_OK;
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NS_PRECONDITION(nsnull != aFrame && nsnull != aState, "null parameters passed in");
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// See if the frame is stateful.
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nsCOMPtr<nsIStatefulFrame> statefulFrame = do_QueryInterface(aFrame);
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// Frames are not ref-counted so no addref/release is required on statefulFrame.
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nsIStatefulFrame* statefulFrame = nsnull;
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aFrame->QueryInterface(nsIStatefulFrame::GetIID(), (void**) &statefulFrame);
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if (nsnull != statefulFrame) {
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// If so, get the content ID, state type and the frame state and
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// ask the frame object to restore its state.
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@ -1430,26 +1441,33 @@ FrameManager::RestoreFrameState(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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}
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}
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}
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}
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}
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// XXX We are only going through the principal child list right now.
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// Need to talk to Troy to find out about other kinds of
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// child lists and whether they will contain stateful frames.
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// (psl) YES, you need to iterate ALL child lists
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return rv;
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}
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// Capture frame state for the first child
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nsIFrame* child = nsnull;
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rv = aFrame->FirstChild(nsnull, &child);
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if (NS_SUCCEEDED(rv) && nsnull != child) {
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rv = RestoreFrameState(child, aState);
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}
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NS_IMETHODIMP
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FrameManager::RestoreFrameState(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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{
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nsresult rv = NS_OK;
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NS_PRECONDITION(nsnull != aFrame && nsnull != aState, "null parameters passed in");
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rv = RestoreFrameStateFor(aFrame, aState);
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// Capture frame state for the next sibling
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nsIFrame* sibling = nsnull;
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rv = aFrame->GetNextSibling(&sibling);
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if (NS_SUCCEEDED(rv) && nsnull != sibling) {
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rv = RestoreFrameState(sibling, aState);
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}
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// Now restore state recursively for the frame hierarchy rooted at aFrame
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nsIAtom* childListName = nsnull;
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PRInt32 childListIndex = 0;
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do {
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nsIFrame* childFrame;
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aFrame->FirstChild(childListName, &childFrame);
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while (childFrame) {
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rv = RestoreFrameState(childFrame, aState);
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// Get the next sibling child frame
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childFrame->GetNextSibling(&childFrame);
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}
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NS_IF_RELEASE(childListName);
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aFrame->GetAdditionalChildListName(childListIndex++, &childListName);
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} while (childListName);
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return rv;
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}
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@ -1349,14 +1349,16 @@ FrameManager::ComputeStyleChangeFor(nsIPresContext& aPresContext,
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}
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NS_IMETHODIMP
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FrameManager::CaptureFrameState(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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static nsresult
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CaptureFrameStateFor(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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{
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nsresult rv = NS_OK;
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NS_PRECONDITION(nsnull != aFrame && nsnull != aState, "null parameters passed in");
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// See if the frame is stateful.
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nsCOMPtr<nsIStatefulFrame> statefulFrame = do_QueryInterface(aFrame);
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// Frames are not ref-counted so no addref/release is required on statefulFrame.
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nsIStatefulFrame* statefulFrame = nsnull;
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aFrame->QueryInterface(nsIStatefulFrame::GetIID(), (void**) &statefulFrame);
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if (nsnull != statefulFrame) {
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// If so, get the content ID, state type and the state and
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// add an association between (ID, type) and (state) to the
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@ -1380,36 +1382,45 @@ FrameManager::CaptureFrameState(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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}
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}
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// XXX We are only going through the principal child list right now.
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// Need to talk to Troy to find out about other kinds of
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// child lists and whether they will contain stateful frames.
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// (psl) YES, you need to iterate ALL child lists
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// Capture frame state for the first child
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nsIFrame* child = nsnull;
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rv = aFrame->FirstChild(nsnull, &child);
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if (NS_SUCCEEDED(rv) && nsnull != child) {
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rv = CaptureFrameState(child, aState);
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}
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// Capture frame state for the next sibling
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nsIFrame* sibling = nsnull;
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rv = aFrame->GetNextSibling(&sibling);
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if (NS_SUCCEEDED(rv) && nsnull != sibling) {
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rv = CaptureFrameState(sibling, aState);
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}
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return rv;
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}
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NS_IMETHODIMP
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FrameManager::RestoreFrameState(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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FrameManager::CaptureFrameState(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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{
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nsresult rv = NS_OK;
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NS_PRECONDITION(nsnull != aFrame && nsnull != aState, "null parameters passed in");
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rv = CaptureFrameStateFor(aFrame, aState);
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// Now capture state recursively for the frame hierarchy rooted at aFrame
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nsIAtom* childListName = nsnull;
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PRInt32 childListIndex = 0;
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do {
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nsIFrame* childFrame;
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aFrame->FirstChild(childListName, &childFrame);
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while (childFrame) {
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rv = CaptureFrameState(childFrame, aState);
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// Get the next sibling child frame
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childFrame->GetNextSibling(&childFrame);
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}
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NS_IF_RELEASE(childListName);
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aFrame->GetAdditionalChildListName(childListIndex++, &childListName);
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} while (childListName);
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return rv;
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}
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static nsresult
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RestoreFrameStateFor(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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{
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nsresult rv = NS_OK;
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NS_PRECONDITION(nsnull != aFrame && nsnull != aState, "null parameters passed in");
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// See if the frame is stateful.
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nsCOMPtr<nsIStatefulFrame> statefulFrame = do_QueryInterface(aFrame);
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// Frames are not ref-counted so no addref/release is required on statefulFrame.
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nsIStatefulFrame* statefulFrame = nsnull;
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aFrame->QueryInterface(nsIStatefulFrame::GetIID(), (void**) &statefulFrame);
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if (nsnull != statefulFrame) {
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// If so, get the content ID, state type and the frame state and
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// ask the frame object to restore its state.
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@ -1430,26 +1441,33 @@ FrameManager::RestoreFrameState(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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}
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}
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}
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}
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}
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// XXX We are only going through the principal child list right now.
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// Need to talk to Troy to find out about other kinds of
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// child lists and whether they will contain stateful frames.
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// (psl) YES, you need to iterate ALL child lists
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return rv;
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}
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// Capture frame state for the first child
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nsIFrame* child = nsnull;
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rv = aFrame->FirstChild(nsnull, &child);
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if (NS_SUCCEEDED(rv) && nsnull != child) {
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rv = RestoreFrameState(child, aState);
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}
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NS_IMETHODIMP
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FrameManager::RestoreFrameState(nsIFrame* aFrame, nsILayoutHistoryState* aState)
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{
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nsresult rv = NS_OK;
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NS_PRECONDITION(nsnull != aFrame && nsnull != aState, "null parameters passed in");
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rv = RestoreFrameStateFor(aFrame, aState);
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// Capture frame state for the next sibling
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nsIFrame* sibling = nsnull;
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rv = aFrame->GetNextSibling(&sibling);
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if (NS_SUCCEEDED(rv) && nsnull != sibling) {
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rv = RestoreFrameState(sibling, aState);
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}
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// Now restore state recursively for the frame hierarchy rooted at aFrame
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nsIAtom* childListName = nsnull;
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PRInt32 childListIndex = 0;
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do {
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nsIFrame* childFrame;
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aFrame->FirstChild(childListName, &childFrame);
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while (childFrame) {
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rv = RestoreFrameState(childFrame, aState);
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// Get the next sibling child frame
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childFrame->GetNextSibling(&childFrame);
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}
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NS_IF_RELEASE(childListName);
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aFrame->GetAdditionalChildListName(childListIndex++, &childListName);
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} while (childListName);
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return rv;
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}
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