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* Copyright (C) 2015 Canonical, Ltd.
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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; version 3.
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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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#include "ShellApplication.h"
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// libandroid-properties
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#include <hybris/properties/properties.h>
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#include "CachingNetworkManagerFactory.h"
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#include "MouseTouchAdaptor.h"
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#include "UnityCommandLineParser.h"
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ShellApplication::ShellApplication(int & argc, char ** argv, bool isMirServer)
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: QGuiApplication(argc, argv)
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, m_shellView(nullptr)
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, m_secondaryWindow(nullptr)
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, m_mouseTouchAdaptor(nullptr)
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, m_qmlEngine(nullptr)
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setApplicationName(QStringLiteral("unity8"));
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connect(this, &QGuiApplication::screenAdded, this, &ShellApplication::onScreenAdded);
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setupQmlEngine(isMirServer);
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UnityCommandLineParser parser(*this);
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if (!parser.deviceName().isEmpty()) {
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m_deviceName = parser.deviceName();
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property_get("ro.product.device", buffer /* value */, "desktop" /* default_value*/);
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m_deviceName = QString(buffer);
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m_qmlArgs.setDeviceName(m_deviceName);
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m_qmlArgs.setMode(parser.mode());
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// The testability driver is only loaded by QApplication but not by QGuiApplication.
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// However, QApplication depends on QWidget which would add some unneeded overhead => Let's load the testability driver on our own.
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if (parser.hasTestability() || getenv("QT_LOAD_TESTABILITY")) {
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QLibrary testLib(QStringLiteral("qttestability"));
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typedef void (*TasInitialize)(void);
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TasInitialize initFunction = (TasInitialize)testLib.resolve("qt_testability_init");
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qCritical("Library qttestability resolve failed!");
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qCritical("Library qttestability load failed!");
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bindtextdomain("unity8", translationDirectory().toUtf8().data());
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m_shellView = new ShellView(m_qmlEngine, &m_qmlArgs);
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if (parser.windowGeometry().isValid()) {
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m_shellView->setWidth(parser.windowGeometry().width());
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m_shellView->setHeight(parser.windowGeometry().height());
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if (parser.hasFrameless()) {
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m_shellView->setFlags(Qt::FramelessWindowHint);
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// You will need this if you want to interact with touch-only components using a mouse
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// Needed only when manually testing on a desktop.
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if (parser.hasMouseToTouch()) {
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m_mouseTouchAdaptor = MouseTouchAdaptor::instance();
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// Some hard-coded policy for now.
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// NB: We don't support more than two screens at the moment
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// TODO: Support an arbitrary number of screens and different policies
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// (eg cloned desktop, several desktops, etc)
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if (isMirServer && screens().count() == 2) {
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m_shellView->setScreen(screens().at(1));
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m_qmlArgs.setDeviceName("desktop");
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m_secondaryWindow = new SecondaryWindow(m_qmlEngine);
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m_secondaryWindow->setScreen(screens().at(0));
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// QWindow::showFullScreen() also calls QWindow::requestActivate() and we don't want that!
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m_secondaryWindow->setWindowState(Qt::WindowFullScreen);
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m_secondaryWindow->setVisible(true);
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if (isMirServer || parser.hasFullscreen()) {
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m_shellView->showFullScreen();
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ShellApplication::~ShellApplication()
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void ShellApplication::destroyResources()
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// Deletion order is important. Don't use QScopedPointers and the like
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// Otherwise the process will hang on shutdown (bug somewhere I guess).
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m_shellView = nullptr;
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delete m_secondaryWindow;
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m_secondaryWindow = nullptr;
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delete m_mouseTouchAdaptor;
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m_mouseTouchAdaptor = nullptr;
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m_qmlEngine = nullptr;
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void ShellApplication::setupQmlEngine(bool isMirServer)
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m_qmlEngine = new QQmlEngine(this);
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m_qmlEngine->setBaseUrl(QUrl::fromLocalFile(::qmlDirectory()));
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prependImportPaths(m_qmlEngine, ::overrideImportPaths());
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prependImportPaths(m_qmlEngine, ::nonMirImportPaths());
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appendImportPaths(m_qmlEngine, ::fallbackImportPaths());
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m_qmlEngine->setNetworkAccessManagerFactory(new CachingNetworkManagerFactory);
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QObject::connect(m_qmlEngine, &QQmlEngine::quit, this, &QGuiApplication::quit);
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void ShellApplication::onScreenAdded(QScreen * /*screen*/)
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// TODO: Support an arbitrary number of screens and different policies
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// (eg cloned desktop, several desktops, etc)
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if (screens().count() == 2) {
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m_shellView->setScreen(screens().at(1));
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m_qmlArgs.setDeviceName("desktop");
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// Changing the QScreen where a QWindow is drawn makes it also lose focus (besides having
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// its backing QPlatformWindow recreated). So lets refocus it.
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m_shellView->requestActivate();
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m_secondaryWindow = new SecondaryWindow(m_qmlEngine);
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m_secondaryWindow->setScreen(screens().at(0));
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// QWindow::showFullScreen() also calls QWindow::requestActivate() and we don't want that!
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m_secondaryWindow->setWindowState(Qt::WindowFullScreen);
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m_secondaryWindow->setVisible(true);
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void ShellApplication::onScreenAboutToBeRemoved(QScreen *screen)
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// TODO: Support an arbitrary number of screens and different policies
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// (eg cloned desktop, several desktops, etc)
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if (screen == m_shellView->screen()) {
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Q_ASSERT(screens().count() > 1);
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Q_ASSERT(screens().at(0) != screen);
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Q_ASSERT(m_secondaryWindow);
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delete m_secondaryWindow;
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m_secondaryWindow = nullptr;
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m_shellView->setScreen(screens().first());
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m_qmlArgs.setDeviceName(m_deviceName);
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// Changing the QScreen where a QWindow is drawn makes it also lose focus (besides having
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// its backing QPlatformWindow recreated). So lets refocus it.
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m_shellView->requestActivate();