076b8bc14c
The text caret tracking feature allows to keep the text caret inside the zoomed area. It can be especially useful when the zoomed area is smaller than the text editor. BUG: 362189
110 lines
3.1 KiB
C++
110 lines
3.1 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "accessibilityintegration.h"
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using namespace QAccessibleClient; // Whatever, sue me...
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namespace KWin
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{
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ZoomAccessibilityIntegration::ZoomAccessibilityIntegration(QObject *parent)
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: QObject(parent)
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{
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}
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void ZoomAccessibilityIntegration::setFocusTrackingEnabled(bool enabled)
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{
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if (m_isFocusTrackingEnabled == enabled) {
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return;
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}
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m_isFocusTrackingEnabled = enabled;
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updateAccessibilityRegistry();
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}
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bool ZoomAccessibilityIntegration::isFocusTrackingEnabled() const
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{
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return m_isFocusTrackingEnabled;
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}
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void ZoomAccessibilityIntegration::setTextCaretTrackingEnabled(bool enabled)
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{
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if (m_isTextCaretTrackingEnabled == enabled) {
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return;
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}
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m_isTextCaretTrackingEnabled = enabled;
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updateAccessibilityRegistry();
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}
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bool ZoomAccessibilityIntegration::isTextCaretTrackingEnabled() const
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{
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return m_isTextCaretTrackingEnabled;
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}
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void ZoomAccessibilityIntegration::updateAccessibilityRegistry()
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{
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Registry::EventListeners eventListeners = Registry::NoEventListeners;
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if (isTextCaretTrackingEnabled()) {
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eventListeners |= Registry::TextCaretMoved;
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}
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if (isFocusTrackingEnabled()) {
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eventListeners |= Registry::Focus;
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}
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if (eventListeners == Registry::NoEventListeners) {
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destroyAccessibilityRegistry();
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return;
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}
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if (!m_accessibilityRegistry) {
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createAccessibilityRegistry();
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}
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m_accessibilityRegistry->subscribeEventListeners(eventListeners);
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}
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void ZoomAccessibilityIntegration::createAccessibilityRegistry()
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{
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m_accessibilityRegistry = new Registry(this);
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connect(m_accessibilityRegistry, &Registry::textCaretMoved,
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this, &ZoomAccessibilityIntegration::slotFocusChanged);
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connect(m_accessibilityRegistry, &Registry::focusChanged,
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this, &ZoomAccessibilityIntegration::slotFocusChanged);
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}
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void ZoomAccessibilityIntegration::destroyAccessibilityRegistry()
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{
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if (!m_accessibilityRegistry) {
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return;
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}
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disconnect(m_accessibilityRegistry, nullptr, this, nullptr);
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m_accessibilityRegistry->deleteLater();
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m_accessibilityRegistry = nullptr;
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}
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void ZoomAccessibilityIntegration::slotFocusChanged(const AccessibleObject &object)
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{
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emit focusPointChanged(object.focusPoint());
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}
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} // namespace KWin
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