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-rw-r--r--accessible/base/nsEventShell.cpp81
1 files changed, 81 insertions, 0 deletions
diff --git a/accessible/base/nsEventShell.cpp b/accessible/base/nsEventShell.cpp
new file mode 100644
index 0000000000..fcdc954919
--- /dev/null
+++ b/accessible/base/nsEventShell.cpp
@@ -0,0 +1,81 @@
+/* -*- 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;