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// Copyright (C) 2018 QNX Software Systems. All rights reserved.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QApplication>
#include <QDebug>
#include <QHBoxLayout>
#include <QWindow>
#include <algorithm>
#include <screen/screen.h>
#include "collector.h"
constexpr int MANAGER_EVENT_NAME_SUGGESTION = 9999;
Collector::Collector(QWidget *parent)
: QWidget(parent)
{
QApplication::instance()->installNativeEventFilter(this);
QLayout *layout = new QHBoxLayout(this);
setLayout(layout);
}
Collector::~Collector()
{
QApplication::instance()->removeNativeEventFilter(this);
}
bool Collector::nativeEventFilter(const QByteArray &eventType, void *message, qintptr *result)
{
Q_UNUSED(result);
if (eventType == QByteArrayLiteral("screen_event_t"))
return filterQnxScreenEvent(static_cast<screen_event_t>(message));
return false;
}
bool Collector::filterQnxScreenEvent(screen_event_t event)
{
int objectType = SCREEN_OBJECT_TYPE_CONTEXT;
screen_get_event_property_iv(event, SCREEN_PROPERTY_OBJECT_TYPE, &objectType);
if (objectType == SCREEN_OBJECT_TYPE_WINDOW)
return filterQnxScreenWindowEvent(event);
return false;
}
bool Collector::filterQnxScreenWindowEvent(screen_event_t event)
{
int eventType = SCREEN_EVENT_NONE;
screen_get_event_property_iv(event, SCREEN_PROPERTY_TYPE, &eventType);
screen_window_t window = nullptr;
screen_get_event_property_pv(event,
SCREEN_PROPERTY_WINDOW,
reinterpret_cast<void **>(&window));
if (eventType == SCREEN_EVENT_CREATE)
return filterQnxScreenWindowCreateEvent(window, event);
else if (eventType == SCREEN_EVENT_CLOSE)
return filterQnxScreenWindowCloseEvent(window, event);
else if (eventType == SCREEN_EVENT_MANAGER)
return filterQnxScreenWindowManagerEvent(window, event);
return false;
}
bool Collector::filterQnxScreenWindowCreateEvent(screen_window_t window, screen_event_t event)
{
Q_UNUSED(event);
WId winId = reinterpret_cast<WId>(window);
QByteArray parentGroup(256, 0);
screen_get_window_property_cv(window,
SCREEN_PROPERTY_PARENT,
parentGroup.length(),
parentGroup.data());
parentGroup.resize(strlen(parentGroup.constData()));
QByteArray group(256, 0);
screen_get_window_property_cv(reinterpret_cast<screen_window_t>(windowHandle()->winId()),
SCREEN_PROPERTY_GROUP,
group.length(),
group.data());
group.resize(strlen(group.constData()));
if (parentGroup != group)
return false;
Collectible collectible;
collectible.window = QWindow::fromWinId(winId);
collectible.widget = QWidget::createWindowContainer(collectible.window, this);
layout()->addWidget(collectible.widget);
m_collectibles.append(collectible);
return false;
}
bool Collector::filterQnxScreenWindowCloseEvent(screen_window_t window, screen_event_t event)
{
Q_UNUSED(event);
WId winId = reinterpret_cast<WId>(window);
auto it = std::find_if(m_collectibles.begin(), m_collectibles.end(),
[winId] (const Collectible &collectible) {
return collectible.window->winId() == winId;
});
if (it != m_collectibles.end()) {
delete it->widget;
// it->window is deleted by it->widget.
m_collectibles.erase(it);
}
return false;
}
bool Collector::filterQnxScreenWindowManagerEvent(screen_window_t window, screen_event_t event)
{
int managerEventType = 0;
screen_get_event_property_iv(event, SCREEN_PROPERTY_SUBTYPE, &managerEventType);
if (managerEventType == MANAGER_EVENT_NAME_SUGGESTION)
return filterQnxScreenWindowManagerNameEvent(window, event);
return false;
}
bool Collector::filterQnxScreenWindowManagerNameEvent(screen_window_t window, screen_event_t event)
{
Q_UNUSED(window);
int dataSize = 0;
screen_get_event_property_iv(event, SCREEN_PROPERTY_SIZE, &dataSize);
if (dataSize > 0) {
QByteArray data(dataSize, 0);
screen_get_event_property_cv(event, SCREEN_PROPERTY_USER_DATA, data.size(), data.data());
}
return false;
}
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