File indexing completed on 2024-06-09 05:26:13

0001 /*
0002     KWin - the KDE window manager
0003     This file is part of the KDE project.
0004 
0005     SPDX-FileCopyrightText: 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
0006 
0007     SPDX-License-Identifier: GPL-2.0-or-later
0008 */
0009 
0010 #include "accessibilityintegration.h"
0011 
0012 using namespace QAccessibleClient; // Whatever, sue me...
0013 
0014 namespace KWin
0015 {
0016 
0017 ZoomAccessibilityIntegration::ZoomAccessibilityIntegration(QObject *parent)
0018     : QObject(parent)
0019 {
0020 }
0021 
0022 void ZoomAccessibilityIntegration::setFocusTrackingEnabled(bool enabled)
0023 {
0024     if (m_isFocusTrackingEnabled == enabled) {
0025         return;
0026     }
0027     m_isFocusTrackingEnabled = enabled;
0028     updateAccessibilityRegistry();
0029 }
0030 
0031 bool ZoomAccessibilityIntegration::isFocusTrackingEnabled() const
0032 {
0033     return m_isFocusTrackingEnabled;
0034 }
0035 
0036 void ZoomAccessibilityIntegration::setTextCaretTrackingEnabled(bool enabled)
0037 {
0038     if (m_isTextCaretTrackingEnabled == enabled) {
0039         return;
0040     }
0041     m_isTextCaretTrackingEnabled = enabled;
0042     updateAccessibilityRegistry();
0043 }
0044 
0045 bool ZoomAccessibilityIntegration::isTextCaretTrackingEnabled() const
0046 {
0047     return m_isTextCaretTrackingEnabled;
0048 }
0049 
0050 void ZoomAccessibilityIntegration::updateAccessibilityRegistry()
0051 {
0052     Registry::EventListeners eventListeners = Registry::NoEventListeners;
0053 
0054     if (isTextCaretTrackingEnabled()) {
0055         eventListeners |= Registry::TextCaretMoved;
0056     }
0057     if (isFocusTrackingEnabled()) {
0058         eventListeners |= Registry::Focus;
0059     }
0060 
0061     if (eventListeners == Registry::NoEventListeners) {
0062         destroyAccessibilityRegistry();
0063         return;
0064     }
0065     if (!m_accessibilityRegistry) {
0066         createAccessibilityRegistry();
0067     }
0068 
0069     m_accessibilityRegistry->subscribeEventListeners(eventListeners);
0070 }
0071 
0072 void ZoomAccessibilityIntegration::createAccessibilityRegistry()
0073 {
0074     m_accessibilityRegistry = new Registry(this);
0075 
0076     connect(m_accessibilityRegistry, &Registry::textCaretMoved,
0077             this, &ZoomAccessibilityIntegration::slotFocusChanged);
0078     connect(m_accessibilityRegistry, &Registry::focusChanged,
0079             this, &ZoomAccessibilityIntegration::slotFocusChanged);
0080 }
0081 
0082 void ZoomAccessibilityIntegration::destroyAccessibilityRegistry()
0083 {
0084     if (!m_accessibilityRegistry) {
0085         return;
0086     }
0087 
0088     disconnect(m_accessibilityRegistry, nullptr, this, nullptr);
0089 
0090     m_accessibilityRegistry->deleteLater();
0091     m_accessibilityRegistry = nullptr;
0092 }
0093 
0094 void ZoomAccessibilityIntegration::slotFocusChanged(const AccessibleObject &object)
0095 {
0096     Q_EMIT focusPointChanged(object.focusPoint());
0097 }
0098 
0099 } // namespace KWin
0100 
0101 #include "moc_accessibilityintegration.cpp"