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Diffstat (limited to '')
-rw-r--r-- | accessible/base/nsEventShell.cpp | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/accessible/base/nsEventShell.cpp b/accessible/base/nsEventShell.cpp new file mode 100644 index 0000000000..d158102a79 --- /dev/null +++ b/accessible/base/nsEventShell.cpp @@ -0,0 +1,71 @@ +/* -*- 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 ? u"true"_ns : u"false"_ns); +} + +//////////////////////////////////////////////////////////////////////////////// +// nsEventShell: private + +bool nsEventShell::sEventFromUserInput = false; +StaticRefPtr<nsINode> nsEventShell::sEventTargetNode; |