зеркало из https://github.com/mozilla/pjs.git
Changed to handle FrameRemoved reflow command for an absolutely positioned
child frame
This commit is contained in:
troy%netscape.com
Родитель
d3df2a0245
Коммит
fd0d24ebb6
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@ -262,14 +262,20 @@ nsAreaFrame::Reflow(nsIPresContext& aPresContext,
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aReflowState.reflowCommand->GetTarget(targetFrame);
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if (this == targetFrame) {
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nsIAtom* listName;
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PRBool isAbsoluteChild;
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// See if it's for an absolutely positioned child frame
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aReflowState.reflowCommand->GetChildListName(listName);
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if (nsLayoutAtoms::absoluteList == listName) {
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isAbsoluteChild = nsLayoutAtoms::absoluteList == listName;
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NS_IF_RELEASE(listName);
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if (isAbsoluteChild) {
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nsIReflowCommand::ReflowType type;
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aReflowState.reflowCommand->GetType(type);
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NS_ASSERTION(nsIReflowCommand::FrameAppended == type, "unexpected reflow type");
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// Handle each specific type
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if (nsIReflowCommand::FrameAppended == type) {
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// Add the frames to our list of absolutely position frames
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nsIFrame* childFrames;
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aReflowState.reflowCommand->GetChildFrame(childFrames);
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@ -278,8 +284,64 @@ nsAreaFrame::Reflow(nsIPresContext& aPresContext,
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// Indicate we handled the reflow command
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wasHandled = PR_TRUE;
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} else if (nsIReflowCommand::FrameRemoved == type) {
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// Get the new frame
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nsIFrame* childFrame;
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aReflowState.reflowCommand->GetChildFrame(childFrame);
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// Find the frame in our list of absolutely positioned children
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// and remove it
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if (mAbsoluteFrames == childFrame) {
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childFrame->GetNextSibling(mAbsoluteFrames);
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} else {
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nsIFrame* prevSibling = nsnull;
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for (nsIFrame* f = mAbsoluteFrames; nsnull != f; f->GetNextSibling(f)) {
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if (f == childFrame) {
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break;
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}
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prevSibling = f;
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}
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NS_ASSERTION(nsnull != prevSibling, "didn't find frame");
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nsIFrame* nextSibling;
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childFrame->GetNextSibling(nextSibling);
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prevSibling->SetNextSibling(nextSibling);
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}
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// Now go ahead and delete the child frame
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childFrame->DeleteFrame(aPresContext);
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// XXX We don't need to reflow all the absolutely positioned
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// frames. Compute the desired size and exit...
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wasHandled = PR_TRUE;
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} else if (nsIReflowCommand::FrameInserted == type) {
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// Get the new frame
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nsIFrame* childFrame;
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aReflowState.reflowCommand->GetChildFrame(childFrame);
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// Get the previous sibling
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nsIFrame* prevSibling;
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aReflowState.reflowCommand->GetPrevSiblingFrame(prevSibling);
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// Insert the frame
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if (nsnull == prevSibling) {
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mAbsoluteFrames = childFrame;
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} else {
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nsIFrame* nextSibling;
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prevSibling->GetNextSibling(nextSibling);
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prevSibling->SetNextSibling(childFrame);
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childFrame->SetNextSibling(nextSibling);
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}
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wasHandled = PR_TRUE;
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} else {
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NS_ASSERTION(PR_FALSE, "unexpected reflow type");
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}
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}
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NS_IF_RELEASE(listName);
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}
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}
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@ -262,14 +262,20 @@ nsAreaFrame::Reflow(nsIPresContext& aPresContext,
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aReflowState.reflowCommand->GetTarget(targetFrame);
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if (this == targetFrame) {
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nsIAtom* listName;
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PRBool isAbsoluteChild;
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// See if it's for an absolutely positioned child frame
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aReflowState.reflowCommand->GetChildListName(listName);
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if (nsLayoutAtoms::absoluteList == listName) {
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isAbsoluteChild = nsLayoutAtoms::absoluteList == listName;
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NS_IF_RELEASE(listName);
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if (isAbsoluteChild) {
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nsIReflowCommand::ReflowType type;
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aReflowState.reflowCommand->GetType(type);
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NS_ASSERTION(nsIReflowCommand::FrameAppended == type, "unexpected reflow type");
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// Handle each specific type
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if (nsIReflowCommand::FrameAppended == type) {
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// Add the frames to our list of absolutely position frames
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nsIFrame* childFrames;
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aReflowState.reflowCommand->GetChildFrame(childFrames);
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@ -278,8 +284,64 @@ nsAreaFrame::Reflow(nsIPresContext& aPresContext,
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// Indicate we handled the reflow command
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wasHandled = PR_TRUE;
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} else if (nsIReflowCommand::FrameRemoved == type) {
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// Get the new frame
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nsIFrame* childFrame;
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aReflowState.reflowCommand->GetChildFrame(childFrame);
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// Find the frame in our list of absolutely positioned children
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// and remove it
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if (mAbsoluteFrames == childFrame) {
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childFrame->GetNextSibling(mAbsoluteFrames);
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} else {
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nsIFrame* prevSibling = nsnull;
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for (nsIFrame* f = mAbsoluteFrames; nsnull != f; f->GetNextSibling(f)) {
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if (f == childFrame) {
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break;
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}
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prevSibling = f;
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}
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NS_ASSERTION(nsnull != prevSibling, "didn't find frame");
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nsIFrame* nextSibling;
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childFrame->GetNextSibling(nextSibling);
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prevSibling->SetNextSibling(nextSibling);
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}
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// Now go ahead and delete the child frame
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childFrame->DeleteFrame(aPresContext);
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// XXX We don't need to reflow all the absolutely positioned
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// frames. Compute the desired size and exit...
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wasHandled = PR_TRUE;
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} else if (nsIReflowCommand::FrameInserted == type) {
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// Get the new frame
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nsIFrame* childFrame;
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aReflowState.reflowCommand->GetChildFrame(childFrame);
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// Get the previous sibling
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nsIFrame* prevSibling;
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aReflowState.reflowCommand->GetPrevSiblingFrame(prevSibling);
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// Insert the frame
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if (nsnull == prevSibling) {
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mAbsoluteFrames = childFrame;
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} else {
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nsIFrame* nextSibling;
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prevSibling->GetNextSibling(nextSibling);
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prevSibling->SetNextSibling(childFrame);
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childFrame->SetNextSibling(nextSibling);
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}
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wasHandled = PR_TRUE;
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} else {
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NS_ASSERTION(PR_FALSE, "unexpected reflow type");
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}
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}
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NS_IF_RELEASE(listName);
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}
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}
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