accessible/src/base/nsEventShell.h

branch
TOR_BUG_9701
changeset 15
b8a032363ba2
equal deleted inserted replaced
-1:000000000000 0:42ef7aba9d67
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6 #ifndef _nsEventShell_H_
7 #define _nsEventShell_H_
8
9 #include "AccEvent.h"
10
11 namespace mozilla {
12 template<typename T> class StaticRefPtr;
13 }
14 class nsIPersistentProperties;
15
16 /**
17 * Used for everything about events.
18 */
19 class nsEventShell
20 {
21 public:
22
23 /**
24 * Fire the accessible event.
25 */
26 static void FireEvent(mozilla::a11y::AccEvent* aEvent);
27
28 /**
29 * Fire accessible event of the given type for the given accessible.
30 *
31 * @param aEventType [in] the event type
32 * @param aAccessible [in] the event target
33 */
34 static void FireEvent(uint32_t aEventType,
35 mozilla::a11y::Accessible* aAccessible,
36 mozilla::a11y::EIsFromUserInput aIsFromUserInput = mozilla::a11y::eAutoDetect);
37
38 /**
39 * Fire state change event.
40 */
41 static void FireEvent(mozilla::a11y::Accessible* aTarget, uint64_t aState,
42 bool aIsEnabled, bool aIsFromUserInput)
43 {
44 nsRefPtr<mozilla::a11y::AccStateChangeEvent> stateChangeEvent =
45 new mozilla::a11y::AccStateChangeEvent(aTarget, aState, aIsEnabled,
46 (aIsFromUserInput ?
47 mozilla::a11y::eFromUserInput :
48 mozilla::a11y::eNoUserInput));
49 FireEvent(stateChangeEvent);
50 }
51
52 /**
53 * Append 'event-from-input' object attribute if the accessible event has
54 * been fired just now for the given node.
55 *
56 * @param aNode [in] the DOM node
57 * @param aAttributes [in, out] the attributes
58 */
59 static void GetEventAttributes(nsINode *aNode,
60 nsIPersistentProperties *aAttributes);
61
62 private:
63 static mozilla::StaticRefPtr<nsINode> sEventTargetNode;
64 static bool sEventFromUserInput;
65 };
66
67 #endif

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