/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsEventShell.h"

#include "nsAccUtils.h"

#include "Logging.h"

#include "mozilla/StaticPtr.h"

using namespace mozilla;

using namespace mozilla::a11y;

////////////////////////////////////////////////////////////////////////////////

// nsEventShell

////////////////////////////////////////////////////////////////////////////////

void

nsEventShell::FireEvent(AccEvent* aEvent)

{

  if (!aEvent || aEvent->mEventRule == AccEvent::eDoNotEmit)

    return;

  Accessible* accessible = aEvent->GetAccessible();

  NS_ENSURE_TRUE_VOID(accessible);

  nsINode* node = accessible->GetNode();

  if (node) {

    sEventTargetNode = node;

    sEventFromUserInput = aEvent->IsFromUserInput();

  }

#ifdef A11Y_LOG

  if (logging::IsEnabled(logging::eEvents)) {

    logging::MsgBegin("EVENTS", "events fired");

    nsAutoString type;

    GetAccService()->GetStringEventType(aEvent->GetEventType(), type);

    logging::MsgEntry("type: %s", NS_ConvertUTF16toUTF8(type).get());

    logging::AccessibleInfo("target", aEvent->GetAccessible());

    logging::MsgEnd();

  }

#endif

  accessible->HandleAccEvent(aEvent);

  aEvent->mEventRule = AccEvent::eDoNotEmit;

  sEventTargetNode = nullptr;

}

void

nsEventShell::FireEvent(uint32_t aEventType, Accessible* aAccessible,

                        EIsFromUserInput aIsFromUserInput)

{

  NS_ENSURE_TRUE_VOID(aAccessible);

  RefPtr<AccEvent> event = new AccEvent(aEventType, aAccessible,

                                          aIsFromUserInput);

  FireEvent(event);

}

void

nsEventShell::GetEventAttributes(nsINode *aNode,

                                 nsIPersistentProperties *aAttributes)

{

  if (aNode != sEventTargetNode)

    return;

  nsAccUtils::SetAccAttr(aAttributes, nsGkAtoms::eventFromInput,

                         sEventFromUserInput ? NS_LITERAL_STRING("true") :

                                               NS_LITERAL_STRING("false"));

}

////////////////////////////////////////////////////////////////////////////////

// nsEventShell: private

bool nsEventShell::sEventFromUserInput = false;

StaticRefPtr<nsINode> nsEventShell::sEventTargetNode;