261 lines
8.0 KiB
C++
261 lines
8.0 KiB
C++
// Copyright Mirage authors & contributors <https://github.com/mirukana/mirage>
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// SPDX-License-Identifier: LGPL-3.0-or-later
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// This file creates the application, registers custom objects for QML
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// and launches Window.qml (the root component).
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#include <QDataStream> // must be first include to avoid clipboard.h errors
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#include <QApplication>
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#include <QQmlEngine>
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#include <QQmlContext>
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#include <QQmlComponent>
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#include <QFileInfo>
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#include <QQuickStyle>
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#include <QFontDatabase>
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#include <QDateTime>
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#include <QStandardPaths>
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#include <QDir>
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#include <QFile>
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#include <QLockFile>
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#include <signal.h>
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#ifdef Q_OS_UNIX
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#include <unistd.h>
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#endif
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#include "utils.h"
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#include "clipboard.h"
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#include "clipboard_image_provider.h"
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QLockFile *lockFile = nullptr;
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void loggingHandler(
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QtMsgType type,
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const QMessageLogContext &context,
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const QString &msg
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) {
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// Override default QML logger to provide colorful logging with times
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Q_UNUSED(context)
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// Hide dumb warnings about thing we can't fix without breaking
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// compatibilty with Qt < 5.14/5.15
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if (msg.contains("QML Binding: Not restoring previous value because"))
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return;
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if (msg.contains("QML Connections: Implicitly defined onFoo properties"))
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return;
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// Hide layout-related spam introduced in Qt 5.14
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if (msg.contains("Qt Quick Layouts: Detected recursive rearrange."))
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return;
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const char* level =
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type == QtDebugMsg ? "~" :
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type == QtInfoMsg ? "i" :
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type == QtWarningMsg ? "!" :
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type == QtCriticalMsg ? "X" :
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type == QtFatalMsg ? "F" :
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"?";
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QString boldColor = "", color = "", clearFormatting = "";
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#ifdef Q_OS_UNIX
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// Don't output escape codes if stderr is piped or redirected to a file
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if (isatty(fileno(stderr))) {
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const QString ansiColor =
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type == QtInfoMsg ? "2" : // green
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type == QtWarningMsg ? "3" : // yellow
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type == QtCriticalMsg ? "1" : // red
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type == QtFatalMsg ? "5" : // purple
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"4"; // blue
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boldColor = "\e[1;3" + ansiColor + "m";
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color = "\e[3" + ansiColor + "m";
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clearFormatting = "\e[0m";
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}
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#endif
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fprintf(
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stderr,
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"%s%s%s %s%s |%s %s\n",
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boldColor.toUtf8().constData(),
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level,
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clearFormatting.toUtf8().constData(),
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color.toUtf8().constData(),
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QDateTime::currentDateTime().toString("hh:mm:ss").toUtf8().constData(),
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clearFormatting.toUtf8().constData(),
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msg.toUtf8().constData()
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);
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}
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void onExitSignal(int signum) {
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QApplication::exit(128 + signum);
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}
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bool setLockFile(QString configPath) {
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QDir settingsFolder(configPath);
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if (! settingsFolder.mkpath(".")) {
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qFatal("Could not create config directory");
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exit(EXIT_FAILURE);
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}
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lockFile = new QLockFile(settingsFolder.absoluteFilePath(".lock"));
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lockFile->tryLock(0);
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switch (lockFile->error()) {
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case QLockFile::NoError:
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return true;
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case QLockFile::LockFailedError: {
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qWarning("Opening already running instance");
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QFile showFile(settingsFolder.absoluteFilePath(".show"));
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showFile.open(QIODevice::WriteOnly);
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showFile.close();
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return false;
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}
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default:
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qFatal("Cannot create lock file: no permission or unknown error");
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exit(EXIT_FAILURE);
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}
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}
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int main(int argc, char *argv[]) {
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qInstallMessageHandler(loggingHandler);
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// Define some basic info about the app before creating the QApplication
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QApplication::setOrganizationName("mirage");
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QApplication::setApplicationName("mirage");
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QApplication::setApplicationDisplayName("Mirage");
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QApplication::setApplicationVersion("0.7.2");
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QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
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QString customConfigDir(qEnvironmentVariable("MIRAGE_CONFIG_DIR"));
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QString settingsFolder(
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customConfigDir.isEmpty() ?
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QStandardPaths::writableLocation(QStandardPaths::GenericConfigLocation)
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+ "/" + QApplication::applicationName() :
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customConfigDir
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);
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if (! setLockFile(settingsFolder)) return EXIT_SUCCESS;
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QApplication app(argc, argv);
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// Register handlers for quit signals, e.g. SIGINT/Ctrl-C in unix terminals
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signal(SIGINT, onExitSignal);
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#ifdef Q_OS_UNIX
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signal(SIGHUP, onExitSignal);
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#endif
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// Force the default universal QML style, notably prevents
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// KDE from hijacking base controls and messing up everything
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QQuickStyle::setStyle("Fusion");
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QQuickStyle::setFallbackStyle("Default");
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// Register default theme fonts. Take the files from the
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// Qt resource system if possible (resources stored in the app executable),
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// else the local file system.
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// The dev qmake flag disables the resource system for faster builds.
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QFileInfo qrcPath(":src/gui/Window.qml");
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QString src = qrcPath.exists() ? ":/src" : "src";
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QList<QString> fontFamilies;
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fontFamilies << "roboto" << "hack";
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QList<QString> fontVariants;
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fontVariants << "regular" << "italic" << "bold" << "bold-italic";
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foreach (QString family, fontFamilies) {
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foreach (QString var, fontVariants) {
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QFontDatabase::addApplicationFont(
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src + "/fonts/" + family + "/" + var + ".ttf"
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);
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}
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}
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// Create the QML engine and get the root context.
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// We will add it some properties that will be available globally in QML.
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QQmlEngine engine;
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QQmlContext *objectContext = new QQmlContext(engine.rootContext());
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// To able to use Qt.quit() from QML side
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QObject::connect(
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&engine, &QQmlEngine::quit, &app, &QApplication::quit, Qt::QueuedConnection
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);
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// Set the debugMode properties depending of if we're running in debug mode
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// or not (`qmake CONFIG+=dev ...`, default in autoreload.py)
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#ifdef QT_DEBUG
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objectContext->setContextProperty("debugMode", true);
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#else
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objectContext->setContextProperty("debugMode", false);
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#endif
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// Register our custom non-visual QObject singletons,
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// that will be importable anywhere in QML. Example:
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// import Clipboard 0.1
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// ...
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// Component.onCompleted: print(Clipboard.text)
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qmlRegisterSingletonType<Clipboard>(
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"Clipboard", 0, 1, "Clipboard",
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[](QQmlEngine *engine, QJSEngine *scriptEngine) -> QObject * {
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Q_UNUSED(scriptEngine)
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Clipboard *clipboard = new Clipboard();
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// Register out custom image providers.
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// QML will be able to request an image from them by setting an
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// `Image`'s `source` to `image://<providerId>/<id>`
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engine->addImageProvider(
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"clipboard", new ClipboardImageProvider(clipboard)
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);
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return clipboard;
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}
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);
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qmlRegisterSingletonType<Utils>(
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"CppUtils", 0, 1, "CppUtils",
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[](QQmlEngine *engine, QJSEngine *scriptEngine) -> QObject * {
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Q_UNUSED(engine)
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Q_UNUSED(scriptEngine)
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return new Utils();
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}
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);
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// Create the QML root component by loading its file from the Qt Resource
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// System or local file system if not possible.
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QQmlComponent component(
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&engine,
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qrcPath.exists() ? "qrc:/src/gui/Window.qml" : "src/gui/Window.qml"
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);
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if (component.isError()) {
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for (QQmlError e : component.errors()) {
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qCritical(
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"%s:%d:%d: %s",
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e.url().toString().toStdString().c_str(),
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e.line(),
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e.column(),
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e.description().toStdString().c_str()
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);
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}
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qFatal("One or more errors have occurred, exiting");
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app.exit(EXIT_FAILURE);
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}
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component.create(objectContext)->setProperty("settingsFolder", settingsFolder);
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// Finally, execute the app. Return its exit code after clearing the lock.
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int exit_code = app.exec();
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delete lockFile;
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return exit_code;
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}
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