git.iko.soy/unity8
on master help sign in
unity8/plugins/Utils/windowinputfilter.cpp
70 lines 2.1 kB history raw
1/*
2 * Copyright (C) 2014 Canonical, Ltd.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 3.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 *
16 * Author: Daniel d'Andrada <daniel.dandrada@canonical.com>
17 */
19#include "windowinputfilter.h"
21#include <QQuickWindow>
23WindowInputFilter::WindowInputFilter(QQuickItem *parent)
24 : QQuickItem(parent),
25 m_lastInputTimestamp(0)
27 connect(this, &QQuickItem::windowChanged,
28 this, &WindowInputFilter::setupFilterOnWindow);
31bool WindowInputFilter::eventFilter(QObject *watched, QEvent *event)
33 Q_ASSERT(!m_filteredWindow.isNull());
34 Q_ASSERT(watched == static_cast<QObject*>(m_filteredWindow.data()));
35 Q_UNUSED(watched);
37 QInputEvent *inputEvent = dynamic_cast<QInputEvent*>(event);
38 if (inputEvent) {
39 m_lastInputTimestamp = inputEvent->timestamp();
40 Q_EMIT lastInputTimestampChanged();
41 }
43 if (event->type() == QEvent::KeyPress || event->type() == QEvent::KeyRelease) {
44 // Let QML see this event and decide if it does not want it
45 event->accept();
46 QCoreApplication::sendEvent(this, event);
47 return event->isAccepted();
48 } else {
49 // Not interested
50 return false;
51 }
54void WindowInputFilter::setupFilterOnWindow(QQuickWindow *window)
56 if (!m_filteredWindow.isNull()) {
57 m_filteredWindow->removeEventFilter(this);
58 m_filteredWindow.clear();
59 }
61 if (window) {
62 window->installEventFilter(this);
63 m_filteredWindow = window;
64 }
67ulong WindowInputFilter::lastInputTimestamp() const
69 return m_lastInputTimestamp;