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/*
* Copyright (C) by Christian Kamm <mail@ckamm.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*/
#include "guiutility.h"
#include <QClipboard>
#include <QApplication>
#include <QDesktopServices>
#include <QLoggingCategory>
#include <QMessageBox>
#include <QUrlQuery>
#include <QIcon>
#ifdef Q_OS_WIN
#include <QMetaMethod>
#include <QtWinExtras/qwinfunctions.h>
#include <qt_windows.h>
#include <chrono>
#include <thread>
using namespace std::chrono;
using namespace std::chrono_literals;
#endif
#include "theme.h"
#include "common/asserts.h"
namespace OCC {
Q_LOGGING_CATEGORY(lcGuiUtility, "gui.utility", QtInfoMsg)
}
using namespace OCC;
#ifdef Q_OS_WIN
namespace {
// TODO: 2.11 move to the new Platform class
struct
{
HANDLE windowMessageWatcherEvent = CreateEventW(nullptr, true, false, nullptr);
bool windowMessageWatcherRun = true;
std::thread *watcherThread = nullptr;
} watchWMCtx;
}
void Utility::startShutdownWatcher()
{
if (watchWMCtx.watcherThread) {
return;
}
// Qt only receives window message if a window was displayed at least once
// create an invisible window to handle WM_ENDSESSION
// We also block a system shutdown until we are properly shutdown our selfs
// In the unlikely case that we require more than 5s Windows will require a fullscreen message
// with our icon, title and the reason why we are blocking the shutdown.
// ensure to initialise the icon in the main thread
HICON icon = {};
if (qobject_cast<QGuiApplication *>(qApp)) {
icon = QtWin::toHICON(Theme::instance()->applicationIcon().pixmap(64, 64));
}
watchWMCtx.watcherThread = new std::thread([icon] {
WNDCLASS wc = {};
wc.hInstance = GetModuleHandle(nullptr);
wc.lpszClassName = L"ocWindowMessageWatcher";
wc.hIcon = icon;
wc.lpfnWndProc = [](HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) -> LRESULT {
// qDebug() << MSG { hwnd, msg, wParam, lParam, 0, {} };
if (msg == WM_QUERYENDSESSION) {
qCDebug(OCC::lcUtility) << "Received WM_QUERYENDSESSION";
return 1;
} else if (msg == WM_ENDSESSION) {
qCDebug(OCC::lcUtility) << "Received WM_ENDSESSION quitting";
QMetaObject::invokeMethod(qApp, &QApplication::quit);
auto start = steady_clock::now();
if (lParam == ENDSESSION_LOGOFF) {
// block the windows shutdown until we are done
const QString description = QApplication::translate("Utility", "Shutting down %1").arg(Theme::instance()->appNameGUI());
qCDebug(OCC::lcUtility) << "Block shutdown until we are ready" << description;
OC_ASSERT(ShutdownBlockReasonCreate(hwnd, reinterpret_cast<const wchar_t *>(description.utf16())));
}
WaitForSingleObject(watchWMCtx.windowMessageWatcherEvent, INFINITE);
if (lParam == ENDSESSION_LOGOFF) {
OC_ASSERT(ShutdownBlockReasonDestroy(hwnd));
}
qCInfo(OCC::lcUtility) << "WM_ENDSESSION successfully shut down" << (steady_clock::now() - start);
watchWMCtx.windowMessageWatcherRun = false;
return 0;
}
return DefWindowProc(hwnd, msg, wParam, lParam);
};
OC_ASSERT(RegisterClass(&wc));
auto watcherWindow = CreateWindowW(wc.lpszClassName, reinterpret_cast<const wchar_t *>(Theme::instance()->appNameGUI().utf16()),
WS_OVERLAPPED, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, nullptr, nullptr, wc.hInstance, nullptr);
OC_ASSERT_X(watcherWindow, Utility::formatWinError(GetLastError()).toUtf8().constData());
MSG msg;
while (watchWMCtx.windowMessageWatcherRun) {
if (!PeekMessageW(&msg, watcherWindow, 0, 0, PM_REMOVE)) {
std::this_thread::sleep_for(100ms);
} else {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
});
qAddPostRoutine([] {
qCDebug(OCC::lcUtility) << "app closed";
SetEvent(watchWMCtx.windowMessageWatcherEvent);
});
}
#endif
bool Utility::openBrowser(const QUrl &url, QWidget *errorWidgetParent)
{
if (!QDesktopServices::openUrl(url)) {
if (errorWidgetParent) {
QMessageBox::warning(
errorWidgetParent,
QCoreApplication::translate("utility", "Could not open browser"),
QCoreApplication::translate("utility",
"There was an error when launching the browser to go to "
"URL %1. Maybe no default browser is configured?")
.arg(url.toString()));
}
qCWarning(lcGuiUtility) << "QDesktopServices::openUrl failed for" << url;
return false;
}
return true;
}
bool Utility::openEmailComposer(const QString &subject, const QString &body, QWidget *errorWidgetParent)
{
QUrl url(QLatin1String("mailto:"));
QUrlQuery query;
query.setQueryItems({ { QLatin1String("subject"), subject },
{ QLatin1String("body"), body } });
url.setQuery(query);
if (!QDesktopServices::openUrl(url)) {
if (errorWidgetParent) {
QMessageBox::warning(
errorWidgetParent,
QCoreApplication::translate("utility", "Could not open email client"),
QCoreApplication::translate("utility",
"There was an error when launching the email client to "
"create a new message. Maybe no default email client is "
"configured?"));
}
qCWarning(lcGuiUtility) << "QDesktopServices::openUrl failed for" << url;
return false;
}
return true;
}
QString Utility::vfsCurrentAvailabilityText(VfsItemAvailability availability)
{
switch(availability) {
case VfsItemAvailability::AlwaysLocal:
return QCoreApplication::translate("utility", "Always available locally");
case VfsItemAvailability::AllHydrated:
return QCoreApplication::translate("utility", "Currently available locally");
case VfsItemAvailability::Mixed:
return QCoreApplication::translate("utility", "Some available online only");
case VfsItemAvailability::AllDehydrated:
return QCoreApplication::translate("utility", "Available online only");
case VfsItemAvailability::OnlineOnly:
return QCoreApplication::translate("utility", "Available online only");
}
Q_UNREACHABLE();
}
QString Utility::vfsPinActionText()
{
return QCoreApplication::translate("utility", "Make always available locally");
}
QString Utility::vfsFreeSpaceActionText()
{
return QCoreApplication::translate("utility", "Free up local space");
}
QIcon Utility::getCoreIcon(const QString &icon_name)
{
if (icon_name.isEmpty()) {
return {};
}
const QString path = Theme::instance()->isUsingDarkTheme() ? QStringLiteral("dark") : QStringLiteral("light");
const QIcon icon(QStringLiteral(":/client/resources/%1/%2").arg(path, icon_name));
Q_ASSERT(!icon.isNull());
return icon;
}
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