qandroidplatformaccessibility.cpp

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
 
 
#include "qandroidplatformaccessibility.h"
#include "androidjniaccessibility.h"
 
QT_BEGIN_NAMESPACE
QAndroidPlatformAccessibility::QAndroidPlatformAccessibility()
{ }
 
QAndroidPlatformAccessibility::~QAndroidPlatformAccessibility()
{ }
 
void QAndroidPlatformAccessibility::notifyAccessibilityUpdate(QAccessibleEvent *event)
{
    if (!isActive() || event == nullptr || !event->accessibleInterface())
        return;
 
    // We do not need implementation of all events, as current statues are polled
    // by QtAccessibilityDelegate.java on every accessibility interaction.
    // Currently we only send notification about the element's position change,
    // so that the element can be moved on the screen if it's focused.
 
    if (event->type() == QAccessible::LocationChanged) {
        QtAndroidAccessibility::notifyLocationChange(event->uniqueId());
    } else if (event->type() == QAccessible::ObjectHide) {
        QtAndroidAccessibility::notifyObjectHide(event->uniqueId());
    } else if (event->type() == QAccessible::ObjectShow) {
        QtAndroidAccessibility::notifyObjectShow(event->uniqueId());
    } else if (event->type() == QAccessible::Focus) {
        QtAndroidAccessibility::notifyObjectFocus(event->uniqueId());
    } else if (event->type() == QAccessible::ValueChanged) {
        QtAndroidAccessibility::notifyValueChanged(event->uniqueId());
    } else if (event->type() == QAccessible::ScrollingEnd
               || event->type() == QAccessible::ScrollingPositionChanged) {
        QtAndroidAccessibility::notifyScrolledEvent(event->uniqueId());
    } else if (event->type() == QAccessible::NameChanged
               || event->type() == QAccessible::DescriptionChanged) {
        QtAndroidAccessibility::notifyDescriptionOrNameChanged(event->uniqueId());
    } else if (event->type() == QAccessible::Announcement) {
        auto *announcementEvent = static_cast<QAccessibleAnnouncementEvent *>(event);
        QtAndroidAccessibility::notifyAnnouncementEvent(announcementEvent->uniqueId(),
                                                        announcementEvent->message());
    } else if (event->type() == QAccessible::ObjectDestroyed) {
        QtAndroidAccessibility::notifyObjectDestroyed(event->uniqueId());
    } else if (event->type() == QAccessible::ObjectCreated) {
        QtAndroidAccessibility::notifyObjectCreated(event->uniqueId());
    }
    // Text-change events are intentionally not forwarded from here: typed and
    // programmatic edits are announced from the IME chokepoints in
    // QAndroidInputContext, which also cover the input-method and key-event
    // paths that emit no QAccessible event. Forwarding TextInserted/Removed/
    // Updated here too would double-announce programmatic changes.
}
 
void QAndroidPlatformAccessibility::setRootObject(QObject *obj)
{
    QPlatformAccessibility::setRootObject(obj);
    QtAndroidAccessibility::createAccessibilityContextObject(obj);
}
 
QT_END_NAMESPACE