1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/accessible/src/base/nsEventShell.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,67 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef _nsEventShell_H_
1.10 +#define _nsEventShell_H_
1.11 +
1.12 +#include "AccEvent.h"
1.13 +
1.14 +namespace mozilla {
1.15 +template<typename T> class StaticRefPtr;
1.16 +}
1.17 +class nsIPersistentProperties;
1.18 +
1.19 +/**
1.20 + * Used for everything about events.
1.21 + */
1.22 +class nsEventShell
1.23 +{
1.24 +public:
1.25 +
1.26 + /**
1.27 + * Fire the accessible event.
1.28 + */
1.29 + static void FireEvent(mozilla::a11y::AccEvent* aEvent);
1.30 +
1.31 + /**
1.32 + * Fire accessible event of the given type for the given accessible.
1.33 + *
1.34 + * @param aEventType [in] the event type
1.35 + * @param aAccessible [in] the event target
1.36 + */
1.37 + static void FireEvent(uint32_t aEventType,
1.38 + mozilla::a11y::Accessible* aAccessible,
1.39 + mozilla::a11y::EIsFromUserInput aIsFromUserInput = mozilla::a11y::eAutoDetect);
1.40 +
1.41 + /**
1.42 + * Fire state change event.
1.43 + */
1.44 + static void FireEvent(mozilla::a11y::Accessible* aTarget, uint64_t aState,
1.45 + bool aIsEnabled, bool aIsFromUserInput)
1.46 + {
1.47 + nsRefPtr<mozilla::a11y::AccStateChangeEvent> stateChangeEvent =
1.48 + new mozilla::a11y::AccStateChangeEvent(aTarget, aState, aIsEnabled,
1.49 + (aIsFromUserInput ?
1.50 + mozilla::a11y::eFromUserInput :
1.51 + mozilla::a11y::eNoUserInput));
1.52 + FireEvent(stateChangeEvent);
1.53 + }
1.54 +
1.55 + /**
1.56 + * Append 'event-from-input' object attribute if the accessible event has
1.57 + * been fired just now for the given node.
1.58 + *
1.59 + * @param aNode [in] the DOM node
1.60 + * @param aAttributes [in, out] the attributes
1.61 + */
1.62 + static void GetEventAttributes(nsINode *aNode,
1.63 + nsIPersistentProperties *aAttributes);
1.64 +
1.65 +private:
1.66 + static mozilla::StaticRefPtr<nsINode> sEventTargetNode;
1.67 + static bool sEventFromUserInput;
1.68 +};
1.69 +
1.70 +#endif
