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Hook up the command event listener to existing windows when the collector is attached (bug 336525) r=marria

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This commit is contained in:
bryner%brianryner.com 2006-05-20 21:37:50 +00:00
parent 43589d6be1
commit 229cb1758f
2 changed files with 37 additions and 0 deletions
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34
extensions/metrics/src/nsUICommandCollector.cpp
View File

@ -59,6 +59,32 @@
NS_IMPL_ISUPPORTS3(nsUICommandCollector, nsIObserver, nsIDOMEventListener,
nsIMetricsCollector)
/* static */
PLDHashOperator PR_CALLBACK nsUICommandCollector::AddCommandEventListener(
const nsIDOMWindow* key, PRUint32 windowID, void* userArg)
{
nsCOMPtr<nsIDOMEventTarget> windowTarget =
do_QueryInterface(NS_CONST_CAST(nsIDOMWindow *, key));
if (!windowTarget) {
MS_LOG(("Error casting domeventtarget"));
return PL_DHASH_NEXT;
}
nsIDOMEventListener* listener = NS_STATIC_CAST(nsIDOMEventListener*,
userArg);
if (!listener) {
MS_LOG(("no event listener in userArg"));
return PL_DHASH_NEXT;
}
nsresult rv = windowTarget->AddEventListener(NS_LITERAL_STRING("command"),
listener, PR_TRUE);
if (NS_FAILED(rv)) {
MS_LOG(("Warning: Adding event listener failed"));
}
return PL_DHASH_NEXT;
}
/* static */
PLDHashOperator PR_CALLBACK nsUICommandCollector::RemoveCommandEventListener(
const nsIDOMWindow* key, PRUint32 windowID, void* userArg)
@ -106,6 +132,14 @@ nsUICommandCollector::OnAttach()
// listener to each window
rv = obsSvc->AddObserver(this, "domwindowopened", PR_FALSE);
NS_ENSURE_SUCCESS(rv, rv);
// Attach to all existing windows
nsMetricsService *ms = nsMetricsService::get();
NS_ENSURE_STATE(ms);
ms->WindowMap().EnumerateRead(AddCommandEventListener,
NS_STATIC_CAST(nsIDOMEventListener*, this));
return NS_OK;
}

3
extensions/metrics/src/nsUICommandCollector.h
View File

@ -58,6 +58,9 @@ class nsUICommandCollector : public nsIObserver,
NS_DECL_NSIDOMEVENTLISTENER
NS_DECL_NSIMETRICSCOLLECTOR
static PLDHashOperator PR_CALLBACK AddCommandEventListener(
const nsIDOMWindow* key, PRUint32 windowID, void* userArg);
static PLDHashOperator PR_CALLBACK RemoveCommandEventListener(
const nsIDOMWindow* key, PRUint32 windowID, void* userArg);