michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef _nsEventShell_H_
michael@0: #define _nsEventShell_H_
michael@0: 
michael@0: #include "AccEvent.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: template<typename T> class StaticRefPtr;
michael@0: }
michael@0: class nsIPersistentProperties;
michael@0: 
michael@0: /**
michael@0:  * Used for everything about events.
michael@0:  */
michael@0: class nsEventShell
michael@0: {
michael@0: public:
michael@0: 
michael@0:   /**
michael@0:    * Fire the accessible event.
michael@0:    */
michael@0:   static void FireEvent(mozilla::a11y::AccEvent* aEvent);
michael@0: 
michael@0:   /**
michael@0:    * Fire accessible event of the given type for the given accessible.
michael@0:    *
michael@0:    * @param  aEventType   [in] the event type
michael@0:    * @param  aAccessible  [in] the event target
michael@0:    */
michael@0:   static void FireEvent(uint32_t aEventType,
michael@0:                         mozilla::a11y::Accessible* aAccessible,
michael@0:                         mozilla::a11y::EIsFromUserInput aIsFromUserInput = mozilla::a11y::eAutoDetect);
michael@0: 
michael@0:   /**
michael@0:    * Fire state change event.
michael@0:    */
michael@0:   static void FireEvent(mozilla::a11y::Accessible* aTarget, uint64_t aState,
michael@0:                         bool aIsEnabled, bool aIsFromUserInput)
michael@0:   {
michael@0:     nsRefPtr<mozilla::a11y::AccStateChangeEvent> stateChangeEvent =
michael@0:       new mozilla::a11y::AccStateChangeEvent(aTarget, aState, aIsEnabled,
michael@0:                                              (aIsFromUserInput ?
michael@0:                                                mozilla::a11y::eFromUserInput :
michael@0:                                                mozilla::a11y::eNoUserInput));
michael@0:     FireEvent(stateChangeEvent);
michael@0:   }
michael@0: 
michael@0:   /**
michael@0:    * Append 'event-from-input' object attribute if the accessible event has
michael@0:    * been fired just now for the given node.
michael@0:    *
michael@0:    * @param  aNode        [in] the DOM node
michael@0:    * @param  aAttributes  [in, out] the attributes
michael@0:    */
michael@0:   static void GetEventAttributes(nsINode *aNode,
michael@0:                                  nsIPersistentProperties *aAttributes);
michael@0: 
michael@0: private:
michael@0:   static mozilla::StaticRefPtr<nsINode> sEventTargetNode;
michael@0:   static bool sEventFromUserInput;
michael@0: };
michael@0: 
michael@0: #endif