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Null-check the primary frame before using it. b=380749 r=aaronleventhal

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This commit is contained in:
mats.palmgren@bredband.net 2007-05-17 01:21:49 -07:00
parent 3678edfc86
commit 520a24ca3f
1 changed files with 9 additions and 2 deletions
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11
accessible/src/html/nsHTMLTableAccessible.cpp
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@ -239,7 +239,9 @@ nsHTMLTableAccessible::GetCaption(nsIAccessible **aCaption)
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMNode> captionNode(do_QueryInterface(caption));
NS_ENSURE_TRUE(captionNode, NS_ERROR_FAILURE);
if (!captionNode) {
return NS_OK;
}
nsCOMPtr<nsIAccessibilityService> accService = GetAccService();
NS_ENSURE_TRUE(accService, NS_ERROR_FAILURE);
@ -252,6 +254,9 @@ nsHTMLTableAccessible::GetCaption(nsIAccessible **aCaption)
nsCOMPtr<nsIContent> content(do_QueryInterface(captionNode));
NS_ENSURE_TRUE(presShell && content, NS_ERROR_FAILURE);
nsIFrame* frame = presShell->GetPrimaryFrameFor(content);
if (!frame) {
return NS_OK;
}
accService->CreateHyperTextAccessible(frame, aCaption);
nsCOMPtr<nsPIAccessNode> accessNode(do_QueryInterface(*aCaption));
return accessNode ? accessNode->Init() : NS_ERROR_FAILURE;
@ -953,7 +958,9 @@ NS_IMETHODIMP nsHTMLTableAccessible::IsProbablyForLayout(PRBool *aIsProbablyForL
NS_ENSURE_TRUE(cellContent, NS_ERROR_FAILURE);
nsCOMPtr<nsIPresShell> shell(GetPresShell());
nsIFrame *cellFrame = shell->GetPrimaryFrameFor(cellContent);
NS_ENSURE_TRUE(cellFrame, NS_ERROR_FAILURE);
if (!cellFrame) {
return NS_OK;
}
nsMargin border;
cellFrame->GetBorder(border);
if (border.top && border.bottom && border.left && border.right) {