зеркало из https://github.com/mozilla/gecko-dev.git
72 строки
2.2 KiB
C++
72 строки
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsEventShell.h"
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#include "nsAccUtils.h"
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#include "Logging.h"
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#include "mozilla/StaticPtr.h"
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using namespace mozilla;
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using namespace mozilla::a11y;
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////////////////////////////////////////////////////////////////////////////////
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// nsEventShell
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////////////////////////////////////////////////////////////////////////////////
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void nsEventShell::FireEvent(AccEvent* aEvent) {
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if (!aEvent || aEvent->mEventRule == AccEvent::eDoNotEmit) return;
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Accessible* accessible = aEvent->GetAccessible();
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NS_ENSURE_TRUE_VOID(accessible);
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nsINode* node = accessible->GetNode();
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if (node) {
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sEventTargetNode = node;
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sEventFromUserInput = aEvent->IsFromUserInput();
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}
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#ifdef A11Y_LOG
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if (logging::IsEnabled(logging::eEvents)) {
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logging::MsgBegin("EVENTS", "events fired");
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nsAutoString type;
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GetAccService()->GetStringEventType(aEvent->GetEventType(), type);
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logging::MsgEntry("type: %s", NS_ConvertUTF16toUTF8(type).get());
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logging::AccessibleInfo("target", aEvent->GetAccessible());
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logging::MsgEnd();
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}
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#endif
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accessible->HandleAccEvent(aEvent);
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aEvent->mEventRule = AccEvent::eDoNotEmit;
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sEventTargetNode = nullptr;
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}
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void nsEventShell::FireEvent(uint32_t aEventType, Accessible* aAccessible,
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EIsFromUserInput aIsFromUserInput) {
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NS_ENSURE_TRUE_VOID(aAccessible);
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RefPtr<AccEvent> event =
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new AccEvent(aEventType, aAccessible, aIsFromUserInput);
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FireEvent(event);
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}
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void nsEventShell::GetEventAttributes(nsINode* aNode,
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nsIPersistentProperties* aAttributes) {
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if (aNode != sEventTargetNode) return;
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nsAccUtils::SetAccAttr(aAttributes, nsGkAtoms::eventFromInput,
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sEventFromUserInput ? u"true"_ns : u"false"_ns);
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsEventShell: private
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bool nsEventShell::sEventFromUserInput = false;
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StaticRefPtr<nsINode> nsEventShell::sEventTargetNode;
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