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tabfocusfence.cpp
/*
* Copyright 2017 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tabfocusfence.h"
#include <private/qquickitem_p.h>
TabFocusFenceItem::TabFocusFenceItem(QQuickItem *parent) : QQuickItem(parent)
{
QQuickItemPrivate *d = QQuickItemPrivate::get(this);
d->isTabFence = true;
setFlag(ItemIsFocusScope);
}
bool TabFocusFenceItem::focusNext()
{
QQuickItem * current = scopedFocusItem();
if (current) {
QQuickItem * next = current->nextItemInFocusChain(true);
if (next) {
next->setFocus(true, Qt::TabFocusReason);
return true;
}
}
return false;
}
bool TabFocusFenceItem::focusPrev()
{
QQuickItem * current = scopedFocusItem();
if (current) {
QQuickItem * prev = current->nextItemInFocusChain(false);
if (prev) {
prev->setFocus(true, Qt::BacktabFocusReason);
return true;
}
}
return false;
}
void TabFocusFenceItem::keyPressEvent(QKeyEvent *event)
{
// Needed so we eat Tab keys when there's only one item inside the fence
if (event->key() == Qt::Key_Tab) {
event->accept();
} else {
QQuickItem::keyPressEvent(event);
}
}
void TabFocusFenceItem::keyReleaseEvent(QKeyEvent *event)
{
// Needed so we eat Tab keys when there's only one item inside the fence
if (event->key() == Qt::Key_Tab) {
event->accept();
} else {
QQuickItem::keyReleaseEvent(event);
}
}