зеркало из https://github.com/mozilla/gecko-dev.git
67 строки
2.0 KiB
C++
67 строки
2.0 KiB
C++
/* -*- 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;
|
|
}
|
|
class nsIPersistentProperties;
|
|
|
|
/**
|
|
* 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::Accessible* aAccessible,
|
|
mozilla::a11y::EIsFromUserInput aIsFromUserInput =
|
|
mozilla::a11y::eAutoDetect);
|
|
|
|
/**
|
|
* Fire state change event.
|
|
*/
|
|
static void FireEvent(mozilla::a11y::Accessible* 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,
|
|
nsIPersistentProperties* aAttributes);
|
|
|
|
private:
|
|
static mozilla::StaticRefPtr<nsINode> sEventTargetNode;
|
|
static bool sEventFromUserInput;
|
|
};
|
|
|
|
#endif
|