nsPLDOMEvent.cpp

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 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Aaron Leventhal (aaronleventhal@moonset.net)
 * Portions created by the Initial Developer are Copyright (C) 2005
 * the Initial Developer. All Rights Reserved.
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 * either of the GNU General Public License Version 2 or later (the "GPL"),
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#include "nsPLDOMEvent.h"
#include "nsEventQueueUtils.h"
#include "nsIDOMEvent.h"
#include "nsIPrivateDOMEvent.h"
#include "nsIDOMDocument.h"
#include "nsIDOMDocumentEvent.h"
#include "nsIDOMEventTarget.h"

void nsPLDOMEvent::HandleEvent()
{
  if (!mEventNode) {
    return;
  }
  
  nsCOMPtr<nsIDOMDocument> domDoc;
  mEventNode->GetOwnerDocument(getter_AddRefs(domDoc));
  nsCOMPtr<nsIDOMDocumentEvent> domEventDoc = do_QueryInterface(domDoc);
  if (domEventDoc) {
    nsCOMPtr<nsIDOMEvent> domEvent;
    domEventDoc->CreateEvent(NS_LITERAL_STRING("Events"),
                        getter_AddRefs(domEvent));

    nsCOMPtr<nsIPrivateDOMEvent> privateEvent(do_QueryInterface(domEvent));
    if (privateEvent && NS_SUCCEEDED(domEvent->InitEvent(mEventType, PR_TRUE, PR_TRUE))) {
      privateEvent->SetTrusted(PR_TRUE);

      nsCOMPtr<nsIDOMEventTarget> target = do_QueryInterface(mEventNode);
      PRBool defaultActionEnabled; // This is not used because the caller is async
      target->DispatchEvent(domEvent, &defaultActionEnabled);
    }
  }
}

nsresult nsPLDOMEvent::PostDOMEvent()
{
  nsCOMPtr<nsIEventQueue> eventQueue;
  nsresult rv = NS_GetCurrentEventQ(getter_AddRefs(eventQueue));
  if (NS_SUCCEEDED(rv)) {
    PL_InitEvent(this, nsnull, (PLHandleEventProc) ::HandlePLDOMEvent, (PLDestroyEventProc) ::DestroyPLDOMEvent);
    rv = eventQueue->PostEvent(this);
  }

  return rv;
}

static void PR_CALLBACK HandlePLDOMEvent(nsPLDOMEvent* aEvent)
{
  aEvent->HandleEvent();
}

static void PR_CALLBACK DestroyPLDOMEvent(nsPLDOMEvent* aEvent)
{
  delete aEvent;
}