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Make myAnchorElement.text return the same as NS4.x. Patch from Fabian Guisset (hidday@geocities.com).

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b=85448, r=sicking, sr=jst
This commit is contained in:
sicking%bigfoot.com 2001-09-05 20:20:50 +00:00
parent d7de1e240f
commit f302ddea5c
1 changed files with 40 additions and 4 deletions
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44
content/html/content/src/nsHTMLAnchorElement.cpp
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@ -39,12 +39,19 @@
#include "nsIDOMEvent.h"
#include "nsNetUtil.h"
// For GetText().
#include "nsIContentIterator.h"
#include "nsIDOMText.h"
#include "nsIEnumerator.h"
#include "nsCOMPtr.h"
#include "nsIFrameManager.h"
#include "nsIPresShell.h"
#include "nsIDocument.h"
#include "nsIHTMLAttributes.h"
nsresult NS_NewContentIterator(nsIContentIterator** aInstancePtrResult);
// XXX suppress
// XXX either suppress is handled in the event code below OR we need a
@ -665,12 +672,41 @@ nsHTMLAnchorElement::GetText(nsAWritableString& aText)
{
aText.Truncate();
nsCOMPtr<nsIDOMNode> child;
// Since this is a Netscape 4 proprietary attribute, we have to implement
// the same behavior. Basically it is returning the last text node of
// of the anchor. Returns an empty string if there is no text node.
// The nsIContentIterator does exactly what we want, if we start the
// iteration from the end.
nsCOMPtr<nsIContentIterator> iter;
nsresult rv = NS_NewContentIterator(getter_AddRefs(iter));
NS_ENSURE_SUCCESS(rv, rv);
GetFirstChild(getter_AddRefs(child));
// Initialize the content iterator with the children of the anchor
iter->Init(this);
if (child) {
child->GetNodeValue(aText);
nsCOMPtr<nsIContent> curNode;
// Position the iterator. Last() is the anchor itself, this is not what we
// want. Prev() positions the iterator to the last child of the anchor,
// starting at the deepest level of children, just like NS4 does.
rv = iter->Last();
NS_ENSURE_SUCCESS(rv, rv);
rv = iter->Prev();
NS_ENSURE_SUCCESS(rv, rv);
iter->CurrentNode(getter_AddRefs(curNode));
while(curNode && (NS_ENUMERATOR_FALSE == iter->IsDone())) {
nsCOMPtr<nsIDOMText> textNode(do_QueryInterface(curNode));
if(textNode) {
// The current node is a text node. Get its value and break the loop.
textNode->GetData(aText);
break;
}
rv = iter->Prev();
NS_ENSURE_SUCCESS(rv, rv);
iter->CurrentNode(getter_AddRefs(curNode));
}
return NS_OK;