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-rw-r--r--accessible/base/nsEventShell.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/accessible/base/nsEventShell.h b/accessible/base/nsEventShell.h
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+/* -*- 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