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/* -*- 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 "AccAttributes.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/dom/DOMStringList.h"
using namespace mozilla;
using namespace mozilla::a11y;
////////////////////////////////////////////////////////////////////////////////
// nsEventShell
////////////////////////////////////////////////////////////////////////////////
void nsEventShell::FireEvent(AccEvent* aEvent) {
if (!aEvent || aEvent->mEventRule == AccEvent::eDoNotEmit) return;
LocalAccessible* 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());
if (aEvent->GetEventType() == nsIAccessibleEvent::EVENT_STATE_CHANGE) {
AccStateChangeEvent* event = downcast_accEvent(aEvent);
RefPtr<dom::DOMStringList> stringStates =
GetAccService()->GetStringStates(event->GetState());
nsAutoString state;
stringStates->Item(0, state);
logging::MsgEntry("state: %s = %s", NS_ConvertUTF16toUTF8(state).get(),
event->IsStateEnabled() ? "true" : "false");
}
logging::AccessibleInfo("target", aEvent->GetAccessible());
logging::MsgEnd();
}
#endif
accessible->HandleAccEvent(aEvent);
aEvent->mEventRule = AccEvent::eDoNotEmit;
sEventTargetNode = nullptr;
}
void nsEventShell::FireEvent(uint32_t aEventType, LocalAccessible* aAccessible,
EIsFromUserInput aIsFromUserInput) {
NS_ENSURE_TRUE_VOID(aAccessible);
RefPtr<AccEvent> event =
new AccEvent(aEventType, aAccessible, aIsFromUserInput);
FireEvent(event);
}
void nsEventShell::GetEventAttributes(nsINode* aNode,
AccAttributes* aAttributes) {
if (aNode != sEventTargetNode) return;
aAttributes->SetAttribute(nsGkAtoms::eventFromInput, sEventFromUserInput);
}
////////////////////////////////////////////////////////////////////////////////
// nsEventShell: private
bool nsEventShell::sEventFromUserInput = false;
StaticRefPtr<nsINode> nsEventShell::sEventTargetNode;