1 files changed, 66 insertions, 0 deletions
diff --git a/accessible/base/nsEventShell.h b/accessible/base/nsEventShell.h
new file mode 100644
index 0000000000..ff2e062750
--- /dev/null
+++ b/accessible/base/nsEventShell.h
@@ -0,0 +1,66 @@
+/* -*- 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/. */
+
+#ifndef _nsEventShell_H_
+#define _nsEventShell_H_
+
+#include "AccEvent.h"
+
+namespace mozilla {
+template <typename T>
+class StaticRefPtr;
+}
+
+/**
+ * Used for everything about events.
+ */
+class nsEventShell {
+ public:
+  /**
+   * Fire the accessible event.
+   */
+  static void FireEvent(mozilla::a11y::AccEvent* aEvent);
+
+  /**
+   * Fire accessible event of the given type for the given accessible.
+   *
+   * @param  aEventType   [in] the event type
+   * @param  aAccessible  [in] the event target
+   */
+  static void FireEvent(uint32_t aEventType,
+                        mozilla::a11y::LocalAccessible* aAccessible,
+                        mozilla::a11y::EIsFromUserInput aIsFromUserInput =
+                            mozilla::a11y::eAutoDetect);
+
+  /**
+   * Fire state change event.
+   */
+  static void FireEvent(mozilla::a11y::LocalAccessible* aTarget,
+                        uint64_t aState, bool aIsEnabled,
+                        bool aIsFromUserInput) {
+    RefPtr<mozilla::a11y::AccStateChangeEvent> stateChangeEvent =
+        new mozilla::a11y::AccStateChangeEvent(
+            aTarget, aState, aIsEnabled,
+            (aIsFromUserInput ? mozilla::a11y::eFromUserInput
+                              : mozilla::a11y::eNoUserInput));
+    FireEvent(stateChangeEvent);
+  }
+
+  /**
+   * Append 'event-from-input' object attribute if the accessible event has
+   * been fired just now for the given node.
+   *
+   * @param  aNode        [in] the DOM node
+   * @param  aAttributes  [in, out] the attributes
+   */
+  static void GetEventAttributes(nsINode* aNode,
+                                 mozilla::a11y::AccAttributes* aAttributes);
+
+ private:
+  static mozilla::StaticRefPtr<nsINode> sEventTargetNode;
+  static bool sEventFromUserInput;
+};
+
+#endif