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Bug 370651. Fire correct caret moved event for jumps to empty anchors. r=ginn.chen

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This commit is contained in:
aaronleventhal@moonset.net 2007-04-19 06:56:09 -07:00
parent 240f1e242c
commit 7677b6ff6e
1 changed files with 9 additions and 1 deletions
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10
accessible/src/html/nsHyperTextAccessible.cpp
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@ -495,8 +495,16 @@ nsresult nsHyperTextAccessible::DOMPointToOffset(nsIDOMNode* aNode, PRInt32 aNod
nsCOMPtr<nsIContent> parentContent(do_QueryInterface(aNode));
// Should not happen, but better to protect against crash if doc node is somehow passed in
NS_ENSURE_TRUE(parentContent, NS_ERROR_FAILURE);
// findNode could be null if aNodeOffset == # of child nodes, which means we're at the end of the children
// findNode could be null if aNodeOffset == # of child nodes, which means one of two things:
// 1) we're at the end of the children, keep findNode = null, so that we get the last possible offset
// 2) there are no children, use parentContent for the node to find. In this case parentContent can't be
// the nsIAccessibleText, because an accesible text must have children
findNode = do_QueryInterface(parentContent->GetChildAt(aNodeOffset));
if (!findNode && !aNodeOffset) {
NS_ASSERTION(!SameCOMIdentity(parentContent, mDOMNode), "Cannot find child for DOMPointToOffset search");
findNode = do_QueryInterface(parentContent); // Case #2: there are no children
}
}
// Get accessible for this findNode, or if that node isn't accessible, use the