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/*
* qtmaildir - a Qt6 mail client for notmuch-indexed Maildirs
* Copyright (C) 2026 Danilo M. <danix@danix.xyz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <QApplication>
#include <QCoreApplication>
#include <QDir>
#include <QIcon>
#include <QLocale>
#include <QMessageBox>
#include <QStandardPaths>
#include <QTranslator>
#include <QWebEngineUrlScheme>
#include <notmuch.h>
#include <cstdio>
#include <cstring>
#include "config.h"
#include "mainwindow.h"
#include "version.h"
int main(int argc, char *argv[])
{
// Answered before anything heavier starts: registering web engine schemes
// and constructing a QApplication to print one line would be absurd, and
// --version has to work on a machine where the GUI cannot open at all.
for (int i = 1; i < argc; ++i) {
if (std::strcmp(argv[i], "--version") == 0
|| std::strcmp(argv[i], "-v") == 0) {
std::printf("qtmaildir %s\n", QTMAILDIR_VERSION);
return 0;
}
if (std::strcmp(argv[i], "--help") == 0
|| std::strcmp(argv[i], "-h") == 0) {
std::printf(
"qtmaildir %s - a Qt6 mail client for notmuch-indexed Maildirs\n"
"\n"
"Usage: qtmaildir [options]\n"
"\n"
" -h, --help Show this help and exit\n"
" -v, --version Show the version and exit\n"
"\n"
"Configuration: ~/.config/qtmaildir/qtmaildir.conf\n"
"qtmaildir reads a notmuch-indexed Maildir. It does no network\n"
"protocol work: fetching and sending are external commands.\n",
QTMAILDIR_VERSION);
return 0;
}
}
// Custom schemes must be registered before QApplication is constructed.
{
QWebEngineUrlScheme scheme(QByteArrayLiteral("cid"));
scheme.setFlags(QWebEngineUrlScheme::SecureScheme
| QWebEngineUrlScheme::ContentSecurityPolicyIgnored);
QWebEngineUrlScheme::registerScheme(scheme);
}
{
QWebEngineUrlScheme scheme(QByteArrayLiteral("qtmaildir"));
scheme.setFlags(QWebEngineUrlScheme::SecureScheme);
QWebEngineUrlScheme::registerScheme(scheme);
}
QApplication app(argc, argv);
app.setApplicationName(QStringLiteral("qtmaildir"));
app.setOrganizationName(QStringLiteral("qtmaildir"));
app.setApplicationVersion(QStringLiteral(QTMAILDIR_VERSION));
// Compiled in rather than read from disk, so the icon is there whether or
// not the app was installed. setDesktopFileName() is what lets a Wayland
// compositor match the window to its .desktop entry, which is where the
// taskbar icon really comes from there.
app.setWindowIcon(QIcon(QStringLiteral(":/icons/qtmaildir.svg")));
app.setDesktopFileName(QStringLiteral("qtmaildir"));
Config config;
config.load(Config::defaultPath());
// On main's stack deliberately: a QTranslator must outlive exec(), and one
// scoped to a helper function unloads on return, silently reverting every
// string to English.
//
// Loaded AFTER Config, because [general] language overrides the
// environment. The cost is that config warnings are generated before the
// translator exists, so they are built in English; retranslating them would
// mean re-running load(), and a warning about the config file is the one
// string a user can still act on in either language.
//
// An empty language() means follow the environment, which is what QLocale()
// default-constructs to. A missing .qm returns false and the app runs in
// English: that is the correct outcome both for an unsupported language and
// for `language = en_US`, since English is the source and ships no .qm.
const QLocale locale = config.language().isEmpty()
? QLocale()
: QLocale(config.language());
QTranslator translator;
QStringList translationDirs;
// Beside the binary first, so a build tree works without installing.
translationDirs << QCoreApplication::applicationDirPath()
+ QStringLiteral("/translations");
const QStringList dataDirs =
QStandardPaths::standardLocations(QStandardPaths::AppDataLocation);
for (const QString &dir : dataDirs)
translationDirs << dir + QStringLiteral("/translations");
for (const QString &dir : std::as_const(translationDirs)) {
if (translator.load(locale, QStringLiteral("qtmaildir"),
QStringLiteral("_"), dir)) {
app.installTranslator(&translator);
break;
}
}
// Fail loudly on an ABI mismatch rather than crashing later.
if (LIBNOTMUCH_MAJOR_VERSION < 5) {
QMessageBox::critical(nullptr, QObject::tr("qtmaildir"),
QObject::tr("libnotmuch 5 or newer is required."));
return 1;
}
MainWindow window(config);
window.show();
// After show(), and out here rather than inside the constructor. A modal
// raised from the constructor cannot be dismissed under the offscreen
// platform, so it hung the test suite with no output (item 84). Showing it
// here also gives the dialog a visible parent to sit on.
const QStringList problems = window.configProblems();
if (!problems.isEmpty()) {
QMessageBox::warning(&window, QObject::tr("Configuration problems"),
problems.join(QLatin1Char('\n')));
}
return app.exec();
}
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