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;