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Dispatch a custom DOM event when the selected item is changed, needed for XBL dropdown lists. Bug 112713, r=jkeiser, sr=jst.

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bryner%netscape.com 2002-01-12 00:53:15 +00:00
parent 0f17dbccdc
commit 869a967c81
1 changed files with 18 additions and 2 deletions
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20
content/html/content/src/nsHTMLSelectElement.cpp
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@ -64,6 +64,7 @@
#include "nsGUIEvent.h"
#include "nsIBoxObject.h"
#include "nsIDOMNSDocument.h"
#include "nsIDOMDocumentEvent.h"
// PresState
#include "nsVoidArray.h"
@ -1326,8 +1327,23 @@ nsHTMLSelectElement::SetOptionsSelectedByIndex(PRInt32 aStartIndex,
}
// Let the caller know whether anything was changed
if (aChangedSomething && (optionsSelected || optionsDeselected)) {
*aChangedSomething = PR_TRUE;
if (optionsSelected || optionsDeselected) {
if (aChangedSomething)
*aChangedSomething = PR_TRUE;
// Dispatch an event to notify the subcontent that the selected item has changed
nsCOMPtr<nsIDocument> document;
GetDocument(*getter_AddRefs(document));
nsCOMPtr<nsIDOMDocumentEvent> domDoc = do_QueryInterface(document);
if (domDoc) {
nsCOMPtr<nsIDOMEvent> selectEvent;
domDoc->CreateEvent(NS_LITERAL_STRING("Events"), getter_AddRefs(selectEvent));
selectEvent->InitEvent(NS_LITERAL_STRING("selectedItemChanged"),
PR_TRUE, PR_TRUE);
nsCOMPtr<nsIDOMEventTarget> target(do_QueryInterface(NS_STATIC_CAST(nsIDOMNode*, this)));
PRBool noDefault;
target->DispatchEvent(selectEvent, &noDefault);
}
}
return NS_OK;