qTox/src/widget/widget.cpp

/*
    Copyright © 2014-2015 by The qTox Project

    This file is part of qTox, a Qt-based graphical interface for Tox.

    qTox is libre 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 3 of the License, or
    (at your option) any later version.

    qTox 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 qTox.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "widget.h"
#include "contentlayout.h"
#include "ui_mainwindow.h"
#include "src/core/core.h"
#include "src/core/coreav.h"
#include "src/persistence/settings.h"
#include "contentdialog.h"
#include "src/friend.h"
#include "src/friendlist.h"
#include "tool/friendrequestdialog.h"
#include "friendwidget.h"
#include "src/grouplist.h"
#include "src/group.h"
#include "groupwidget.h"
#include "form/groupchatform.h"
#include "circlewidget.h"
#include "src/widget/style.h"
#include "friendlistwidget.h"
#include "form/chatform.h"
#include "maskablepixmapwidget.h"
#include "src/net/autoupdate.h"
#include "src/audio/audio.h"
#include "src/platform/timer.h"
#include "systemtrayicon.h"
#include "src/nexus.h"
#include "src/persistence/profile.h"
#include "src/widget/gui.h"
#include "src/persistence/offlinemsgengine.h"
#include "src/widget/translator.h"
#include "src/widget/form/addfriendform.h"
#include "src/widget/form/groupinviteform.h"
#include "src/widget/form/filesform.h"
#include "src/widget/form/profileform.h"
#include "src/widget/form/settingswidget.h"
#include "tool/removefrienddialog.h"
#include "src/widget/tool/activatedialog.h"
#include <cassert>
#include <QMessageBox>
#include <QDebug>
#include <QFile>
#include <QString>
#include <QBuffer>
#include <QPainter>
#include <QMouseEvent>
#include <QClipboard>
#include <QThread>
#include <QDialogButtonBox>
#include <QShortcut>
#include <QTimer>
#include <QStyleFactory>
#include <QString>
#include <QByteArray>
#include <QImageReader>
#include <QList>
#include <QDesktopServices>
#include <QProcess>
#include <QSvgRenderer>
#include <QWindow>
#include <tox/tox.h>

#ifdef Q_OS_MAC
#include <QMenuBar>
#include <QWindow>
#include <QSignalMapper>
#endif

#ifdef Q_OS_ANDROID
#define IS_ON_DESKTOP_GUI 0
#else
#define IS_ON_DESKTOP_GUI 1
#endif

bool toxActivateEventHandler(const QByteArray&)
{
    Widget* widget = Nexus::getDesktopGUI();
    if (!widget)
        return true;
    if (!widget->isActiveWindow())
        widget->forceShow();

    return true;
}

Widget *Widget::instance{nullptr};

Widget::Widget(QWidget *parent)
    : QMainWindow(parent),
      icon{nullptr},
      trayMenu{nullptr},
      ui(new Ui::MainWindow),
      activeChatroomWidget{nullptr},
      eventFlag(false),
      eventIcon(false)
{
    installEventFilter(this);
    Translator::translate();
}

void Widget::init()
{
    ui->setupUi(this);

    QIcon themeIcon = QIcon::fromTheme("qtox");
    if (!themeIcon.isNull())
        setWindowIcon(themeIcon);

    timer = new QTimer();
    timer->start(1000);
    offlineMsgTimer = new QTimer();
    offlineMsgTimer->start(15000);

    icon_size = 15;
    statusOnline = new QAction(this);
    statusOnline->setIcon(prepareIcon(getStatusIconPath(Status::Online), icon_size, icon_size));
    connect(statusOnline, &QAction::triggered, this, &Widget::setStatusOnline);

    statusAway = new QAction(this);
    statusAway->setIcon(prepareIcon(getStatusIconPath(Status::Away), icon_size, icon_size));
    connect(statusAway, &QAction::triggered, this, &Widget::setStatusAway);

    statusBusy = new QAction(this);
    statusBusy->setIcon(prepareIcon(getStatusIconPath(Status::Busy), icon_size, icon_size));
    connect(statusBusy, &QAction::triggered, this, &Widget::setStatusBusy);

    actionLogout = new QAction(this);
    actionLogout->setIcon(prepareIcon(":/img/others/logout-icon.svg", icon_size, icon_size));

    actionQuit = new QAction(this);
#ifndef Q_OS_OSX
    actionQuit->setMenuRole(QAction::QuitRole);
#endif
    actionQuit->setIcon(prepareIcon(":/ui/rejectCall/rejectCall.svg", icon_size, icon_size));
    connect(actionQuit, &QAction::triggered, qApp, &QApplication::quit);

    layout()->setContentsMargins(0, 0, 0, 0);
    ui->friendList->setStyleSheet(Style::resolve(Style::getStylesheet(":/ui/friendList/friendList.css")));

    profilePicture = new MaskablePixmapWidget(this, QSize(40, 40), ":/img/avatar_mask.svg");
    profilePicture->setPixmap(QPixmap(":/img/contact_dark.svg"));
    profilePicture->setClickable(true);
    ui->myProfile->insertWidget(0, profilePicture);
    ui->myProfile->insertSpacing(1, 7);

    filterMenu = new QMenu(this);
    filterGroup = new QActionGroup(this);
    filterDisplayGroup = new QActionGroup(this);

    filterDisplayName = new QAction(this);
    filterDisplayName->setCheckable(true);
    filterDisplayName->setChecked(true);
    filterDisplayGroup->addAction(filterDisplayName);
    filterMenu->addAction(filterDisplayName);
    filterDisplayActivity = new QAction(this);
    filterDisplayActivity->setCheckable(true);
    filterDisplayGroup->addAction(filterDisplayActivity);
    filterMenu->addAction(filterDisplayActivity);
    filterMenu->addSeparator();

    filterAllAction = new QAction(this);
    filterAllAction->setCheckable(true);
    filterAllAction->setChecked(true);
    filterGroup->addAction(filterAllAction);
    filterMenu->addAction(filterAllAction);
    filterOnlineAction = new QAction(this);
    filterOnlineAction->setCheckable(true);
    filterGroup->addAction(filterOnlineAction);
    filterMenu->addAction(filterOnlineAction);
    filterOfflineAction = new QAction(this);
    filterOfflineAction->setCheckable(true);
    filterGroup->addAction(filterOfflineAction);
    filterMenu->addAction(filterOfflineAction);
    filterFriendsAction = new QAction(this);
    filterFriendsAction->setCheckable(true);
    filterGroup->addAction(filterFriendsAction);
    filterMenu->addAction(filterFriendsAction);
    filterGroupsAction = new QAction(this);
    filterGroupsAction->setCheckable(true);
    filterGroup->addAction(filterGroupsAction);
    filterMenu->addAction(filterGroupsAction);

    ui->searchContactFilterBox->setMenu(filterMenu);

#ifndef Q_OS_MAC
    ui->statusHead->setStyleSheet(Style::getStylesheet(":/ui/window/statusPanel.css"));
#endif

    contactListWidget = new FriendListWidget(this, Settings::getInstance().getGroupchatPosition());
    ui->friendList->setWidget(contactListWidget);
    ui->friendList->setLayoutDirection(Qt::RightToLeft);
    ui->friendList->setContextMenuPolicy(Qt::CustomContextMenu);

    ui->statusLabel->setEditable(true);

    ui->statusPanel->setStyleSheet(Style::getStylesheet(":/ui/window/statusPanel.css"));

    QMenu *statusButtonMenu = new QMenu(ui->statusButton);
    statusButtonMenu->addAction(statusOnline);
    statusButtonMenu->addAction(statusAway);
    statusButtonMenu->addAction(statusBusy);
    ui->statusButton->setMenu(statusButtonMenu);

    // disable proportional scaling
    ui->mainSplitter->setStretchFactor(0,0);
    ui->mainSplitter->setStretchFactor(1,1);

    onStatusSet(Status::Offline);

    // Disable some widgets until we're connected to the DHT
    ui->statusButton->setEnabled(false);

    Style::setThemeColor(Settings::getInstance().getThemeColor());
    reloadTheme();
    updateIcons();

    filesForm = new FilesForm();
    addFriendForm = new AddFriendForm;
    groupInviteForm = new GroupInviteForm;
    profileForm = new ProfileForm();
    settingsWidget = new SettingsWidget();

    //connect logout tray menu action
    connect(actionLogout, &QAction::triggered, profileForm, &ProfileForm::onLogoutClicked);

    Core* core = Nexus::getCore();
    connect(core, &Core::fileDownloadFinished, filesForm, &FilesForm::onFileDownloadComplete);
    connect(core, &Core::fileUploadFinished, filesForm, &FilesForm::onFileUploadComplete);
    connect(settingsWidget, &SettingsWidget::setShowSystemTray, this, &Widget::onSetShowSystemTray);
    connect(core, &Core::selfAvatarChanged, profileForm, &ProfileForm::onSelfAvatarLoaded);
    connect(ui->addButton, &QPushButton::clicked, this, &Widget::onAddClicked);
    connect(ui->groupButton, &QPushButton::clicked, this, &Widget::onGroupClicked);
    connect(ui->transferButton, &QPushButton::clicked, this, &Widget::onTransferClicked);
    connect(ui->settingsButton, &QPushButton::clicked, this, &Widget::onSettingsClicked);
    connect(profilePicture, &MaskablePixmapWidget::clicked, this, &Widget::showProfile);
    connect(ui->nameLabel, &CroppingLabel::clicked, this, &Widget::showProfile);
    connect(ui->statusLabel, &CroppingLabel::editFinished, this, &Widget::onStatusMessageChanged);
    connect(ui->mainSplitter, &QSplitter::splitterMoved, this, &Widget::onSplitterMoved);
    connect(addFriendForm, &AddFriendForm::friendRequested, this, &Widget::friendRequested);
    connect(groupInviteForm, &GroupInviteForm::groupCreate, Core::getInstance(), &Core::createGroup);
    connect(timer, &QTimer::timeout, this, &Widget::onUserAwayCheck);
    connect(timer, &QTimer::timeout, this, &Widget::onEventIconTick);
    connect(timer, &QTimer::timeout, this, &Widget::onTryCreateTrayIcon);
    connect(offlineMsgTimer, &QTimer::timeout, this, &Widget::processOfflineMsgs);
    connect(ui->searchContactText, &QLineEdit::textChanged, this, &Widget::searchContacts);
    connect(filterGroup, &QActionGroup::triggered, this, &Widget::searchContacts);
    connect(filterDisplayGroup, &QActionGroup::triggered, this, &Widget::changeDisplayMode);
    connect(ui->friendList, &QWidget::customContextMenuRequested, this, &Widget::friendListContextMenu);

    // keyboard shortcuts
    new QShortcut(Qt::CTRL + Qt::Key_Q, this, SLOT(close()));
    new QShortcut(Qt::CTRL + Qt::SHIFT + Qt::Key_Tab, this, SLOT(previousContact()));
    new QShortcut(Qt::CTRL + Qt::Key_Tab, this, SLOT(nextContact()));
    new QShortcut(Qt::CTRL + Qt::Key_PageUp, this, SLOT(previousContact()));
    new QShortcut(Qt::CTRL + Qt::Key_PageDown, this, SLOT(nextContact()));

#ifdef Q_OS_MAC
    QMenuBar* globalMenu = Nexus::getInstance().globalMenuBar;
    QAction* windowMenu = Nexus::getInstance().windowMenu->menuAction();
    QAction* viewMenu = Nexus::getInstance().viewMenu->menuAction();
    QAction* frontAction = Nexus::getInstance().frontAction;

    fileMenu = globalMenu->insertMenu(viewMenu, new QMenu(this));

    editProfileAction = fileMenu->menu()->addAction(QString());
    connect(editProfileAction, &QAction::triggered, this, &Widget::showProfile);

    changeStatusMenu = fileMenu->menu()->addMenu(QString());
    fileMenu->menu()->addAction(changeStatusMenu->menuAction());
    changeStatusMenu->addAction(statusOnline);
    changeStatusMenu->addSeparator();
    changeStatusMenu->addAction(statusAway);
    changeStatusMenu->addAction(statusBusy);

    fileMenu->menu()->addSeparator();
    logoutAction = fileMenu->menu()->addAction(QString());
    connect(logoutAction, &QAction::triggered, [this]()
    {
        Nexus::getInstance().showLogin();
    });

    editMenu = globalMenu->insertMenu(viewMenu, new QMenu(this));
    editMenu->menu()->addSeparator();

    viewMenu->menu()->insertMenu(Nexus::getInstance().fullscreenAction, filterMenu);

    viewMenu->menu()->insertSeparator(Nexus::getInstance().fullscreenAction);

    contactMenu = globalMenu->insertMenu(windowMenu, new QMenu(this));

    addContactAction = contactMenu->menu()->addAction(QString());
    connect(addContactAction, &QAction::triggered, this, &Widget::onAddClicked);

    nextConversationAction = new QAction(this);
    Nexus::getInstance().windowMenu->insertAction(frontAction, nextConversationAction);
    nextConversationAction->setShortcut(QKeySequence::SelectNextPage);
    connect(nextConversationAction, &QAction::triggered, [this]()
    {
        if (ContentDialog::current() == QApplication::activeWindow())
            ContentDialog::current()->cycleContacts(true);
        else if (QApplication::activeWindow() == this)
            cycleContacts(true);
    });

    previousConversationAction = new QAction(this);
    Nexus::getInstance().windowMenu->insertAction(frontAction, previousConversationAction);
    previousConversationAction->setShortcut(QKeySequence::SelectPreviousPage);
    connect(previousConversationAction, &QAction::triggered, [this]
    {
        if (ContentDialog::current() == QApplication::activeWindow())
            ContentDialog::current()->cycleContacts(false);
        else if (QApplication::activeWindow() == this)
            cycleContacts(false);
    });

    windowMenu->menu()->insertSeparator(frontAction);

    QAction* preferencesAction = viewMenu->menu()->addAction(QString());
    preferencesAction->setMenuRole(QAction::PreferencesRole);
    connect(preferencesAction, &QAction::triggered, this, &Widget::onSettingsClicked);

    QAction* aboutAction = viewMenu->menu()->addAction(QString());
    aboutAction->setMenuRole(QAction::AboutRole);
    connect(aboutAction, &QAction::triggered, [this]()
    {
        onSettingsClicked();
        settingsWidget->showAbout();
    });

    QMenu* dockChangeStatusMenu = new QMenu(tr("Status"), this);
    dockChangeStatusMenu->addAction(statusOnline);
    statusOnline->setIconVisibleInMenu(true);
    dockChangeStatusMenu->addSeparator();
    dockChangeStatusMenu->addAction(statusAway);
    dockChangeStatusMenu->addAction(statusBusy);
    Nexus::getInstance().dockMenu->addAction(dockChangeStatusMenu->menuAction());

    connect(this, &Widget::windowStateChanged, &Nexus::getInstance(), &Nexus::onWindowStateChanged);
#endif

    contentLayout = nullptr;
    onSeparateWindowChanged(Settings::getInstance().getSeparateWindow(), false);

    ui->addButton->setCheckable(true);
    ui->groupButton->setCheckable(true);
    ui->transferButton->setCheckable(true);
    ui->settingsButton->setCheckable(true);

    if (contentLayout != nullptr)
        onAddClicked();

    //restore window state
    restoreGeometry(Settings::getInstance().getWindowGeometry());
    restoreState(Settings::getInstance().getWindowState());
    if (!ui->mainSplitter->restoreState(Settings::getInstance().getSplitterState()))
    {
        // Set the status panel (friendlist) to a reasonnable width by default/on first start
        constexpr int spWidthPc = 33;
        ui->mainSplitter->resize(size());
        QList<int> sizes = ui->mainSplitter->sizes();
        sizes[0] = ui->mainSplitter->width()*spWidthPc/100;
        sizes[1] = ui->mainSplitter->width() - sizes[0];
        ui->mainSplitter->setSizes(sizes);
    }

    connect(settingsWidget, &SettingsWidget::compactToggled, contactListWidget, &FriendListWidget::onCompactChanged);
    connect(settingsWidget, &SettingsWidget::groupchatPositionToggled, contactListWidget, &FriendListWidget::onGroupchatPositionChanged);
    connect(settingsWidget, &SettingsWidget::separateWindowToggled, this, &Widget::onSeparateWindowClicked);
#if (AUTOUPDATE_ENABLED)
    if (Settings::getInstance().getCheckUpdates())
        AutoUpdater::checkUpdatesAsyncInteractive();
#endif

    friendRequestsButton = nullptr;
    groupInvitesButton = nullptr;
    unreadGroupInvites = 0;

    connect(addFriendForm, &AddFriendForm::friendRequestsSeen, this, &Widget::friendRequestsUpdate);
    connect(addFriendForm, &AddFriendForm::friendRequestAccepted, this, &Widget::friendRequestAccepted);
    connect(groupInviteForm, &GroupInviteForm::groupInvitesSeen, this, &Widget::groupInvitesClear);
    connect(groupInviteForm, &GroupInviteForm::groupInviteAccepted, this, &Widget::onGroupInviteAccepted);

    retranslateUi();
    Translator::registerHandler(std::bind(&Widget::retranslateUi, this), this);

    if (!Settings::getInstance().getShowSystemTray())
        show();

#ifdef Q_OS_MAC
    Nexus::getInstance().updateWindows();
#endif
}

bool Widget::eventFilter(QObject *obj, QEvent *event)
{
    if (event->type() == QEvent::WindowStateChange && obj != NULL)
    {
           QWindowStateChangeEvent * ce = static_cast<QWindowStateChangeEvent*>(event);
           if (windowState() & Qt::WindowMinimized)
           {
                if (ce->oldState() & Qt::WindowMaximized)
                    wasMaximized = true;
                else
                    wasMaximized = false;
           }

#ifdef Q_OS_MAC
           emit windowStateChanged(windowState());
#endif
    }
    return false;
}

void Widget::updateIcons()
{
    if (!icon)
        return;

    QString status;
    if (eventIcon)
    {
        status = QStringLiteral("event");
    }
    else
    {
        status = ui->statusButton->property("status").toString();
        if (!status.length())
            status = QStringLiteral("offline");
    }

    QIcon ico;
    if (QIcon::hasThemeIcon("qtox-" + status))
    {
        ico = QIcon::fromTheme("qtox-" + status);
    }
    else
    {
        QString color = Settings::getInstance().getLightTrayIcon() ? "light" : "dark";
        QString path = ":/img/taskbar/" + color + "/taskbar_" + status + ".svg";
        QSvgRenderer renderer(path);

        // Prepare a QImage with desired characteritisc
        QImage image = QImage(250, 250, QImage::Format_ARGB32);
        image.fill(Qt::transparent);
        QPainter painter(&image);
        renderer.render(&painter);
        ico = QIcon(QPixmap::fromImage(image));
    }

    setWindowIcon(ico);
    if (icon)
        icon->setIcon(ico);
}

Widget::~Widget()
{
    QWidgetList windowList = QApplication::topLevelWidgets();

    for (QWidget* window : windowList)
    {
        if (window != this)
            window->close();
    }

    Translator::unregister(this);
    AutoUpdater::abortUpdates();
    if (icon)
        icon->hide();

    delete profileForm;
    delete settingsWidget;
    delete addFriendForm;
    delete groupInviteForm;
    delete filesForm;
    delete timer;
    delete offlineMsgTimer;
    delete contentLayout;

    FriendList::clear();
    GroupList::clear();
    delete trayMenu;
    delete ui;
    instance = nullptr;
}

Widget* Widget::getInstance()
{
    assert(IS_ON_DESKTOP_GUI); // Widget must only be used on Desktop platforms

    if (!instance)
        instance = new Widget();

    return instance;
}

void Widget::showUpdateDownloadProgress()
{
    settingsWidget->showAbout();
    onSettingsClicked();
}

void Widget::moveEvent(QMoveEvent *event)
{
    if (event->type() == QEvent::Move)
    {
        saveWindowGeometry();
        saveSplitterGeometry();
    }
    QWidget::moveEvent(event);
}

void Widget::closeEvent(QCloseEvent *event)
{
    if (Settings::getInstance().getShowSystemTray() && Settings::getInstance().getCloseToTray() == true)
    {
        event->ignore();
        this->hide();
    }
    else
    {
        if (autoAwayActive)
        {
            emit statusSet(Status::Online);
            autoAwayActive = false;
        }
        saveWindowGeometry();
        saveSplitterGeometry();
        qApp->exit(0);
        QWidget::closeEvent(event);
    }
}

void Widget::changeEvent(QEvent *event)
{
    if (event->type() == QEvent::WindowStateChange)
    {
        if (isMinimized() &&
                Settings::getInstance().getShowSystemTray() &&
                Settings::getInstance().getMinimizeToTray())
            this->hide();
    }
}

void Widget::resizeEvent(QResizeEvent *event)
{
    Q_UNUSED(event);
    saveWindowGeometry();

    emit resized();
}

QString Widget::getUsername()
{
    return Nexus::getCore()->getUsername();
}

void Widget::onSelfAvatarLoaded(const QPixmap& pic)
{
    profilePicture->setPixmap(pic);
}

void Widget::onConnected()
{
    ui->statusButton->setEnabled(true);
    emit statusSet(Nexus::getCore()->getStatus());
}

void Widget::onDisconnected()
{
    ui->statusButton->setEnabled(false);
    emit statusSet(Status::Offline);
}

void Widget::onFailedToStartCore()
{
    QMessageBox critical(this);
    critical.setText(tr("toxcore failed to start, the application will terminate after you close this message."));
    critical.setIcon(QMessageBox::Critical);
    critical.exec();
    qApp->quit();
}

void Widget::onBadProxyCore()
{
    Settings::getInstance().setProxyType(0);
    QMessageBox critical(this);
    critical.setText(tr("toxcore failed to start with your proxy settings. qTox cannot run; please modify your "
               "settings and restart.", "popup text"));
    critical.setIcon(QMessageBox::Critical);
    critical.exec();
    onSettingsClicked();
}

void Widget::onStatusSet(Status status)
{
    ui->statusButton->setProperty("status", getStatusTitle(status));
    ui->statusButton->setIcon(prepareIcon(getStatusIconPath(status), icon_size, icon_size));
    updateIcons();
}

void Widget::onSeparateWindowClicked(bool separate)
{
    onSeparateWindowChanged(separate, true);
}

void Widget::onSeparateWindowChanged(bool separate, bool clicked)
{
    if (!separate)
    {
        QWindowList windowList = QGuiApplication::topLevelWindows();

        for (QWindow* window : windowList)
        {
            if (window->objectName() == "detachedWindow")
                window->close();
        }

        QWidget* contentWidget = new QWidget(this);
        contentLayout = new ContentLayout(contentWidget);
        ui->mainSplitter->addWidget(contentWidget);

        setMinimumWidth(775);

        onAddClicked();
    }
    else
    {
        int width = ui->friendList->size().width();
        QSize size;
        QPoint pos;

        if (contentLayout)
        {
            pos = mapToGlobal(ui->mainSplitter->widget(1)->pos());
            size = ui->mainSplitter->widget(1)->size();
        }

        if (contentLayout != nullptr)
        {
            contentLayout->clear();
            contentLayout->parentWidget()->setParent(0); // Remove from splitter.
            contentLayout->parentWidget()->hide();
            contentLayout->parentWidget()->deleteLater();
            contentLayout->deleteLater();
            contentLayout = nullptr;
        }

        setMinimumWidth(ui->tooliconsZone->sizeHint().width());

        if (clicked)
        {
            showNormal();
            resize(width, height());
        }

        setWindowTitle(QString());
        setActiveToolMenuButton(None);

        if (clicked)
        {
            ContentLayout* contentLayout = createContentDialog((SettingDialog));
            contentLayout->parentWidget()->resize(size);
            contentLayout->parentWidget()->move(pos);
            settingsWidget->show(contentLayout);
            setActiveToolMenuButton(Widget::None);
        }
    }
}

void Widget::setWindowTitle(const QString& title)
{
    if (title.isEmpty())
    {
        QMainWindow::setWindowTitle(QApplication::applicationName());
    }
    else
    {
        QString tmp = title;
        /// <[^>]*> Regexp to remove HTML tags, in case someone used them in title
        QMainWindow::setWindowTitle(QApplication::applicationName() + QStringLiteral(" - ") + tmp.remove(QRegExp("<[^>]*>")));
    }
}

void Widget::forceShow()
{
    hide(); // Workaround to force minimized window to be restored
    show();
    activateWindow();
}

void Widget::onAddClicked()
{
    if (Settings::getInstance().getSeparateWindow())
    {
        if (!addFriendForm->isShown())
            addFriendForm->show(createContentDialog(AddDialog));

        setActiveToolMenuButton(Widget::None);
    }
    else
    {
        hideMainForms(nullptr);
        addFriendForm->show(contentLayout);
        setWindowTitle(fromDialogType(AddDialog));
        setActiveToolMenuButton(Widget::AddButton);
    }
}

void Widget::onGroupClicked()
{
    if (Settings::getInstance().getSeparateWindow())
    {
        if (!groupInviteForm->isShown())
            groupInviteForm->show(createContentDialog(GroupDialog));

        setActiveToolMenuButton(Widget::None);
    }
    else
    {
        hideMainForms(nullptr);
        groupInviteForm->show(contentLayout);
        setWindowTitle(fromDialogType(GroupDialog));
        setActiveToolMenuButton(Widget::GroupButton);
    }
}

void Widget::onTransferClicked()
{
    if (Settings::getInstance().getSeparateWindow())
    {
        if (!filesForm->isShown())
            filesForm->show(createContentDialog(TransferDialog));

        setActiveToolMenuButton(Widget::None);
    }
    else
    {
        hideMainForms(nullptr);
        filesForm->show(contentLayout);
        setWindowTitle(fromDialogType(TransferDialog));
        setActiveToolMenuButton(Widget::TransferButton);
    }
}

void Widget::confirmExecutableOpen(const QFileInfo &file)
{
    static const QStringList dangerousExtensions = { "app", "bat", "com", "cpl", "dmg", "exe", "hta", "jar", "js", "jse", "lnk", "msc", "msh", "msh1", "msh1xml", "msh2", "msh2xml", "mshxml", "msi", "msp", "pif", "ps1", "ps1xml", "ps2", "ps2xml", "psc1", "psc2", "py", "reg", "scf", "sh", "src", "vb", "vbe", "vbs", "ws", "wsc", "wsf", "wsh" };

    if (dangerousExtensions.contains(file.suffix()))
    {
        if (!GUI::askQuestion(tr("Executable file", "popup title"), tr("You have asked qTox to open an executable file. Executable files can potentially damage your computer. Are you sure want to open this file?", "popup text"), false, true))
            return;

        // The user wants to run this file, so make it executable and run it
        QFile(file.filePath()).setPermissions(file.permissions() | QFile::ExeOwner | QFile::ExeUser | QFile::ExeGroup | QFile::ExeOther);
        QProcess::startDetached(file.filePath());
    }
    else
    {
        QDesktopServices::openUrl(QUrl::fromLocalFile(file.filePath()));
    }
}

void Widget::onIconClick(QSystemTrayIcon::ActivationReason reason)
{
    if (reason == QSystemTrayIcon::Trigger)
    {
        if (isHidden() || isMinimized())
        {
            if (wasMaximized)
                showMaximized();
            else
                showNormal();

            activateWindow();
        }
        else if (!isActiveWindow())
        {
            activateWindow();
        }
        else
        {
            wasMaximized = isMaximized();
            hide();
        }
    }
    else if (reason == QSystemTrayIcon::Unknown)
    {
        if (isHidden())
            forceShow();
    }
}

void Widget::onSettingsClicked()
{
    if (Settings::getInstance().getSeparateWindow())
    {
        if (!settingsWidget->isShown())
            settingsWidget->show(createContentDialog(SettingDialog));

        setActiveToolMenuButton(Widget::None);
        settingsWidget->setWindowIcon(QIcon(":/img/icons/qtox.svg"));
    }
    else
    {
        hideMainForms(nullptr);
        settingsWidget->show(contentLayout);
        setWindowTitle(fromDialogType(SettingDialog));
        setActiveToolMenuButton(Widget::SettingButton);
    }
}

void Widget::showProfile() // onAvatarClicked, onUsernameClicked
{
    if (Settings::getInstance().getSeparateWindow())
    {
        if (!profileForm->isShown())
            profileForm->show(createContentDialog(ProfileDialog));

        setActiveToolMenuButton(Widget::None);
        settingsWidget->setWindowIcon(QIcon(":/img/icons/qtox.svg"));
    }
    else
    {
        hideMainForms(nullptr);
        profileForm->show(contentLayout);
        setWindowTitle(fromDialogType(ProfileDialog));
        setActiveToolMenuButton(Widget::None);
    }
}

void Widget::hideMainForms(GenericChatroomWidget* chatroomWidget)
{
    setActiveToolMenuButton(Widget::None);

    if (contentLayout != nullptr)
        contentLayout->clear();

    if (activeChatroomWidget != nullptr)
        activeChatroomWidget->setAsInactiveChatroom();

    activeChatroomWidget = chatroomWidget;
}

void Widget::setUsername(const QString& username)
{
    if (username.isEmpty())
    {
        ui->nameLabel->setText(tr("Your name"));
        ui->nameLabel->setToolTip(tr("Your name"));
    }
    else
    {
        ui->nameLabel->setText(username);
        ui->nameLabel->setToolTip(Qt::convertFromPlainText(username, Qt::WhiteSpaceNormal)); // for overlength names
    }

    QString sanename = username;
    sanename.remove(QRegExp("[\\t\\n\\v\\f\\r\\x0000]"));
             nameMention = QRegExp("\\b" + QRegExp::escape(username) + "\\b", Qt::CaseInsensitive);
    sanitizedNameMention = QRegExp("\\b" + QRegExp::escape(sanename) + "\\b", Qt::CaseInsensitive);
}

void Widget::onStatusMessageChanged(const QString& newStatusMessage)
{
    // Keep old status message until Core tells us to set it.
    Nexus::getCore()->setStatusMessage(newStatusMessage);
}

void Widget::setStatusMessage(const QString &statusMessage)
{
    if (statusMessage.isEmpty())
    {
        ui->statusLabel->setText(tr("Your status"));
        ui->statusLabel->setToolTip(tr("Your status"));
    }
    else
    {
        ui->statusLabel->setText(statusMessage);
        ui->statusLabel->setToolTip(Qt::convertFromPlainText(statusMessage, Qt::WhiteSpaceNormal)); // for overlength messsages
    }
}

void Widget::reloadHistory()
{
    for (auto f : FriendList::getAllFriends())
        f->getChatForm()->loadHistory(QDateTime::currentDateTime().addDays(-7), true);
}

void Widget::addFriend(int friendId, const QString &userId)
{
    ToxId userToxId = ToxId(userId);
    Friend* newfriend = FriendList::addFriend(friendId, userToxId);

    QDate activityDate = Settings::getInstance().getFriendActivity(newfriend->getToxId());
    QDate chatDate = newfriend->getChatForm()->getLatestDate();

    if (chatDate > activityDate && chatDate.isValid())
        Settings::getInstance().setFriendActivity(newfriend->getToxId(), chatDate);

    contactListWidget->addFriendWidget(newfriend->getFriendWidget(), Status::Offline, Settings::getInstance().getFriendCircleID(newfriend->getToxId()));

    Core* core = Nexus::getCore();
    CoreAV* coreav = core->getAv();
    connect(newfriend, &Friend::displayedNameChanged, this, &Widget::onFriendDisplayChanged);
    connect(settingsWidget, &SettingsWidget::compactToggled, newfriend->getFriendWidget(), &GenericChatroomWidget::compactChange);
    connect(newfriend->getFriendWidget(), SIGNAL(chatroomWidgetClicked(GenericChatroomWidget*, bool)), this, SLOT(onChatroomWidgetClicked(GenericChatroomWidget*, bool)));
    connect(newfriend->getFriendWidget(), SIGNAL(removeFriend(int)), this, SLOT(removeFriend(int)));
    connect(newfriend->getFriendWidget(), SIGNAL(copyFriendIdToClipboard(int)), this, SLOT(copyFriendIdToClipboard(int)));
    connect(newfriend->getFriendWidget(), SIGNAL(chatroomWidgetClicked(GenericChatroomWidget*)), newfriend->getChatForm(), SLOT(focusInput()));
    connect(newfriend->getChatForm(), &GenericChatForm::sendMessage, core, &Core::sendMessage);
    connect(newfriend->getChatForm(), &GenericChatForm::sendAction, core, &Core::sendAction);
    connect(newfriend->getChatForm(), &ChatForm::sendFile, core, &Core::sendFile);
    connect(newfriend->getChatForm(), &ChatForm::aliasChanged, newfriend->getFriendWidget(), &FriendWidget::setAlias);
    connect(core, &Core::fileReceiveRequested, newfriend->getChatForm(), &ChatForm::onFileRecvRequest);
    connect(coreav, &CoreAV::avInvite, newfriend->getChatForm(), &ChatForm::onAvInvite, Qt::BlockingQueuedConnection);
    connect(coreav, &CoreAV::avStart, newfriend->getChatForm(), &ChatForm::onAvStart, Qt::BlockingQueuedConnection);
    connect(coreav, &CoreAV::avEnd, newfriend->getChatForm(), &ChatForm::onAvEnd, Qt::BlockingQueuedConnection);
    connect(core, &Core::friendAvatarChanged, newfriend->getChatForm(), &ChatForm::onAvatarChange);
    connect(core, &Core::friendAvatarChanged, newfriend->getFriendWidget(), &FriendWidget::onAvatarChange);
    connect(core, &Core::friendAvatarRemoved, newfriend->getChatForm(), &ChatForm::onAvatarRemoved);
    connect(core, &Core::friendAvatarRemoved, newfriend->getFriendWidget(), &FriendWidget::onAvatarRemoved);

    // Try to get the avatar from the cache
    QPixmap avatar = Nexus::getProfile()->loadAvatar(userId);
    if (!avatar.isNull())
    {
        newfriend->getChatForm()->onAvatarChange(friendId, avatar);
        newfriend->getFriendWidget()->onAvatarChange(friendId, avatar);
    }

    int filter = getFilterCriteria();
    newfriend->getFriendWidget()->search(ui->searchContactText->text(), filterOffline(filter));

}

void Widget::addFriendFailed(const QString&, const QString& errorInfo)
{
    QString info = QString(tr("Couldn't request friendship"));
    if (!errorInfo.isEmpty()) {
        info = info + (QString(": ") + errorInfo);
    }

    QMessageBox::critical(0,"Error",info);
}

void Widget::onFriendshipChanged(int friendId)
{
    Friend* who = FriendList::findFriend(friendId);
    updateFriendActivity(who);
}

void Widget::onFriendStatusChanged(int friendId, Status status)
{
    Friend* f = FriendList::findFriend(friendId);
    if (!f)
        return;

    bool isActualChange = f->getStatus() != status;

    if (isActualChange)
    {
        if (f->getStatus() == Status::Offline)
            contactListWidget->moveWidget(f->getFriendWidget(), Status::Online);
        else if (status == Status::Offline)
            contactListWidget->moveWidget(f->getFriendWidget(), Status::Offline);
    }

    f->setStatus(status);
    f->getFriendWidget()->updateStatusLight();
    if(f->getFriendWidget()->isActive())
        setWindowTitle(f->getFriendWidget()->getTitle());

    ContentDialog::updateFriendStatus(friendId);

    //won't print the message if there were no messages before
    if (!f->getChatForm()->isEmpty()
            && Settings::getInstance().getStatusChangeNotificationEnabled())
    {
        QString fStatus = "";
        switch (f->getStatus())
        {
        case Status::Away:
            fStatus = tr("away", "contact status"); break;
        case Status::Busy:
            fStatus = tr("busy", "contact status"); break;
        case Status::Offline:
            fStatus = tr("offline", "contact status");
            f->getChatForm()->setFriendTyping(false); // Hide the "is typing" message when a friend goes offline
            break;
        default:
            fStatus = tr("online", "contact status"); break;
        }
        if (isActualChange)
            f->getChatForm()->addSystemInfoMessage(tr("%1 is now %2", "e.g. \"Dubslow is now online\"").arg(f->getDisplayedName()).arg(fStatus),
                                                   ChatMessage::INFO, QDateTime::currentDateTime());
    }

    if (isActualChange && status != Status::Offline)
    { // wait a little
        QTimer::singleShot(250, f->getChatForm()->getOfflineMsgEngine(), SLOT(deliverOfflineMsgs()));
    }
}

void Widget::onFriendStatusMessageChanged(int friendId, const QString& message)
{
    Friend* f = FriendList::findFriend(friendId);
    if (!f)
        return;

    QString str = message; str.replace('\n', ' ');
    str.remove('\r'); str.remove(QChar((char)0)); // null terminator...
    f->setStatusMessage(str);

    ContentDialog::updateFriendStatusMessage(friendId, message);
}

void Widget::onFriendUsernameChanged(int friendId, const QString& username)
{
    Friend* f = FriendList::findFriend(friendId);
    if (!f)
        return;

    QString str = username; str.replace('\n', ' ');
    str.remove('\r'); str.remove(QChar((char)0)); // null terminator...
    f->setName(str);
}

void Widget::onFriendDisplayChanged(FriendWidget *friendWidget, Status s)
{
    contactListWidget->moveWidget(friendWidget, s);
    int filter = getFilterCriteria();
    switch (s)
    {
        case Status::Offline:
            friendWidget->searchName(ui->searchContactText->text(), filterOffline(filter));
        default:
            friendWidget->searchName(ui->searchContactText->text(), filterOnline(filter));
    }

}

void Widget::onChatroomWidgetClicked(GenericChatroomWidget *widget, bool group)
{
    widget->resetEventFlags();
    widget->updateStatusLight();

    if (widget->chatFormIsSet(true) && !group)
        return;

    if (Settings::getInstance().getSeparateWindow() || group)
    {
        ContentDialog* dialog = nullptr;

        if (!Settings::getInstance().getDontGroupWindows() && !group)
            dialog = ContentDialog::current();

        if (dialog == nullptr)
            dialog = createContentDialog();

        dialog->show();
        Friend* frnd = widget->getFriend();

        if (frnd != nullptr)
        {
            addFriendDialog(frnd, dialog);
        }
        else
        {
            Group* group = widget->getGroup();
            addGroupDialog(group, dialog);
        }

        dialog->raise();
        dialog->activateWindow();
    }
    else
    {
        hideMainForms(widget);
        widget->setChatForm(contentLayout);
        widget->setAsActiveChatroom();
        setWindowTitle(widget->getTitle());
    }
}

void Widget::onFriendMessageReceived(int friendId, const QString& message, bool isAction)
{
    Friend* f = FriendList::findFriend(friendId);
    if (!f)
        return;

    QDateTime timestamp = QDateTime::currentDateTime();
    f->getChatForm()->addMessage(f->getToxId(), message, isAction, timestamp, true);

    Profile* profile = Nexus::getProfile();
    if (profile->isHistoryEnabled())
        profile->getHistory()->addNewMessage(f->getToxId().publicKey, isAction ? "/me " + f->getDisplayedName() + " " + message : message,
                                               f->getToxId().publicKey, timestamp, true, f->getDisplayedName());

    newFriendMessageAlert(friendId);
}

void Widget::onReceiptRecieved(int friendId, int receipt)
{
    Friend* f = FriendList::findFriend(friendId);
    if (!f)
        return;

    f->getChatForm()->getOfflineMsgEngine()->dischargeReceipt(receipt);
}

void Widget::addFriendDialog(Friend *frnd, ContentDialog *dialog)
{
    if (!ContentDialog::getFriendDialog(frnd->getFriendID()) && !Settings::getInstance().getSeparateWindow() && activeChatroomWidget == frnd->getFriendWidget())
        onAddClicked();

    FriendWidget* friendWidget = dialog->addFriend(frnd->getFriendID(), frnd->getDisplayedName());

    friendWidget->setStatusMsg(frnd->getFriendWidget()->getStatusMsg());

    connect(friendWidget, SIGNAL(removeFriend(int)), this, SLOT(removeFriend(int)));
    connect(friendWidget, SIGNAL(copyFriendIdToClipboard(int)), this, SLOT(copyFriendIdToClipboard(int)));

    connect(Core::getInstance(), &Core::friendAvatarChanged, friendWidget, &FriendWidget::onAvatarChange);
    connect(Core::getInstance(), &Core::friendAvatarRemoved, friendWidget, &FriendWidget::onAvatarRemoved);

    QPixmap avatar = Nexus::getProfile()->loadAvatar(frnd->getToxId().toString());
    if (!avatar.isNull())
        friendWidget->onAvatarChange(frnd->getFriendID(), avatar);
}

void Widget::addGroupDialog(Group *group, ContentDialog *dialog)
{
    if (!ContentDialog::getGroupDialog(group->getGroupId()) && !Settings::getInstance().getSeparateWindow() && activeChatroomWidget == group->getGroupWidget())
        onAddClicked();

    GroupWidget* groupWidget = dialog->addGroup(group->getGroupId(), group->getName());
    connect(groupWidget, SIGNAL(removeGroup(int)), this, SLOT(removeGroup(int)));
    connect(groupWidget, SIGNAL(chatroomWidgetClicked(GenericChatroomWidget*)), group->getChatForm(), SLOT(focusInput()));
}

bool Widget::newFriendMessageAlert(int friendId, bool sound)
{
    bool hasActive;
    QWidget* currentWindow;
    ContentDialog* contentDialog = ContentDialog::getFriendDialog(friendId);
    Friend* f = FriendList::findFriend(friendId);

    if (contentDialog != nullptr)
    {
        currentWindow = contentDialog->window();
        hasActive = ContentDialog::isFriendWidgetActive(friendId);
    }
    else
    {
        currentWindow = window();
        hasActive = f->getFriendWidget() == activeChatroomWidget;
    }

    if (newMessageAlert(currentWindow, hasActive, sound))
    {
        f->setEventFlag(true);
        f->getFriendWidget()->updateStatusLight();

        if (contentDialog == nullptr)
        {
            if (hasActive)
                setWindowTitle(f->getFriendWidget()->getTitle());
        }
        else
        {
            ContentDialog::updateFriendStatus(friendId);
        }

        return true;
    }

    return false;
}

bool Widget::newGroupMessageAlert(int groupId, bool notify)
{
    bool hasActive;
    QWidget* currentWindow;
    ContentDialog* contentDialog = ContentDialog::getGroupDialog(groupId);
    Group* g =  GroupList::findGroup(groupId);

    if (contentDialog != nullptr)
    {
        currentWindow = contentDialog->window();
        hasActive = ContentDialog::isGroupWidgetActive(groupId);
    }
    else
    {
        currentWindow = window();
        hasActive = g->getGroupWidget() == activeChatroomWidget;
    }

    if (newMessageAlert(currentWindow, hasActive, true, notify))
    {
        g->setEventFlag(true);
        g->getGroupWidget()->updateStatusLight();

        if (contentDialog == nullptr)
        {
            if (hasActive)
                setWindowTitle(g->getGroupWidget()->getTitle());
        }
        else
        {
            ContentDialog::updateGroupStatus(groupId);
        }

        return true;
    }

    return false;
}

QString Widget::fromDialogType(DialogType type)
{
    switch (type)
    {
        case AddDialog:
            return tr("Add friend");
        case GroupDialog:
            return tr("Group invites");
        case TransferDialog:
            return tr("File transfers");
        case SettingDialog:
            return tr("Settings");
        case ProfileDialog:
            return tr("Profile");
        default:
            return QString();
    }
}

bool Widget::newMessageAlert(QWidget* currentWindow, bool isActive, bool sound, bool notify)
{
    bool inactiveWindow = isMinimized() || !currentWindow->isActiveWindow();

    if (!inactiveWindow && isActive)
        return false;

    if (notify)
    {
        if (inactiveWindow)
        {
            QApplication::alert(currentWindow);
            eventFlag = true;
        }

        if (Settings::getInstance().getShowWindow())
        {
            currentWindow->show();
            if (inactiveWindow && Settings::getInstance().getShowInFront())
                currentWindow->activateWindow();
        }

        if (Settings::getInstance().getNotifySound() && sound)
            Audio::getInstance().playMono16Sound(QStringLiteral(":/audio/notification.pcm"));
    }

    return true;
}

void Widget::onFriendRequestReceived(const QString& userId, const QString& message)
{
    if(addFriendForm->addFriendRequest(userId, message))
    {
        friendRequestsUpdate();
        newMessageAlert(window(), isActiveWindow(), true, true);
    }
}

void Widget::updateFriendActivity(Friend *frnd)
{
    QDate date = Settings::getInstance().getFriendActivity(frnd->getToxId());
    if (date != QDate::currentDate())
    {
        // Update old activity before after new one. Store old date first.
        QDate oldDate = Settings::getInstance().getFriendActivity(frnd->getToxId());
        Settings::getInstance().setFriendActivity(frnd->getToxId(), QDate::currentDate());
        contactListWidget->moveWidget(frnd->getFriendWidget(), frnd->getStatus());
        contactListWidget->updateActivityDate(oldDate);
    }
}

void Widget::removeFriend(Friend* f, bool fake)
{
    if (!fake)
    {
        RemoveFriendDialog ask(this, f);
        ask.exec();

        if (!ask.accepted())
               return;
        else if (ask.removeHistory())
            Nexus::getProfile()->getHistory()->removeFriendHistory(f->getToxId().publicKey);
    }

    f->getFriendWidget()->setAsInactiveChatroom();
    if (f->getFriendWidget() == activeChatroomWidget)
    {
        activeChatroomWidget = nullptr;
        onAddClicked();
    }

    contactListWidget->removeFriendWidget(f->getFriendWidget());

    ContentDialog* lastDialog = ContentDialog::getFriendDialog(f->getFriendID());

    if (lastDialog != nullptr)
        lastDialog->removeFriend(f->getFriendID());

    FriendList::removeFriend(f->getFriendID(), fake);
    Nexus::getCore()->removeFriend(f->getFriendID(), fake);

    delete f;
    if (contentLayout != nullptr && contentLayout->mainHead->layout()->isEmpty())
        onAddClicked();

    contactListWidget->reDraw();
}

void Widget::removeFriend(int friendId)
{
    removeFriend(FriendList::findFriend(friendId), false);
}

void Widget::clearContactsList()
{
    assert(QThread::currentThread() == qApp->thread());

    QList<Friend*> friends = FriendList::getAllFriends();
    for (Friend* f : friends)
        removeFriend(f, true);

    QList<Group*> groups = GroupList::getAllGroups();
    for (Group* g : groups)
        removeGroup(g, true);
}

ContentDialog* Widget::createContentDialog() const
{
    ContentDialog* contentDialog = new ContentDialog(settingsWidget);
    contentDialog->show();
#ifdef Q_OS_MAC
    connect(contentDialog, &ContentDialog::destroyed, &Nexus::getInstance(), &Nexus::updateWindowsClosed);
    connect(contentDialog, &ContentDialog::windowStateChanged, &Nexus::getInstance(), &Nexus::onWindowStateChanged);
    connect(contentDialog->windowHandle(), &QWindow::windowTitleChanged, &Nexus::getInstance(), &Nexus::updateWindows);
    Nexus::getInstance().updateWindows();
#endif
    return contentDialog;
}

ContentLayout* Widget::createContentDialog(DialogType type)
{
    class Dialog : public ActivateDialog
    {
    public:
        Dialog(DialogType type)
            : ActivateDialog()
            , type(type)
        {
            restoreGeometry(Settings::getInstance().getDialogSettingsGeometry());
            Translator::registerHandler(std::bind(&Dialog::retranslateUi, this), this);
            retranslateUi();

            connect(Core::getInstance(), &Core::usernameSet, this, &Dialog::retranslateUi);
        }

        ~Dialog()
        {
            Translator::unregister(this);
        }

    public slots:

        void retranslateUi()
        {
            setWindowTitle(Core::getInstance()->getUsername() + QStringLiteral(" - ") + Widget::fromDialogType(type));
            setWindowIcon(QIcon(":/img/icons/qtox.svg"));
        }

    protected:
        void resizeEvent(QResizeEvent* event) override
        {
            Settings::getInstance().setDialogSettingsGeometry(saveGeometry());
            QDialog::resizeEvent(event);
        }

        void moveEvent(QMoveEvent* event) override
        {
            Settings::getInstance().setDialogSettingsGeometry(saveGeometry());
            QDialog::moveEvent(event);
        }

    private:
        DialogType type;
    };

    Dialog* dialog = new Dialog(type);
    dialog->setAttribute(Qt::WA_DeleteOnClose);
    ContentLayout* contentLayoutDialog = new ContentLayout(dialog);

    dialog->setObjectName("detached");
    dialog->setLayout(contentLayoutDialog);
    dialog->layout()->setMargin(0);
    dialog->layout()->setSpacing(0);
    dialog->setMinimumSize(720, 400);
    dialog->setAttribute(Qt::WA_DeleteOnClose);
    dialog->show();

#ifdef Q_OS_MAC
    connect(dialog, &Dialog::destroyed, &Nexus::getInstance(), &Nexus::updateWindowsClosed);
    connect(dialog, &ActivateDialog::windowStateChanged, &Nexus::getInstance(), &Nexus::updateWindowsStates);
    connect(dialog->windowHandle(), &QWindow::windowTitleChanged, &Nexus::getInstance(), &Nexus::updateWindows);
    Nexus::getInstance().updateWindows();
#endif

    return contentLayoutDialog;
}

void Widget::copyFriendIdToClipboard(int friendId)
{
    Friend* f = FriendList::findFriend(friendId);
    if (f != nullptr)
    {
        QClipboard *clipboard = QApplication::clipboard();
        clipboard->setText(Nexus::getCore()->getFriendAddress(f->getFriendID()), QClipboard::Clipboard);
    }
}

void Widget::onGroupInviteReceived(int32_t friendId, uint8_t type, QByteArray invite)
{
    updateFriendActivity(FriendList::findFriend(friendId));

    if (type == TOX_GROUPCHAT_TYPE_TEXT || type == TOX_GROUPCHAT_TYPE_AV)
    {
        ++unreadGroupInvites;
        groupInvitesUpdate();
        newMessageAlert(window(), isActiveWindow(), true, true);
        groupInviteForm->addGroupInvite(friendId, type, invite);
    }
    else
    {
        qWarning() << "onGroupInviteReceived: Unknown groupchat type:"<<type;
        return;
    }
}

void Widget::onGroupInviteAccepted(int32_t friendId, uint8_t type, QByteArray invite)
{
    int groupId = Nexus::getCore()->joinGroupchat(friendId, type, (uint8_t*)invite.data(), invite.length());
    if (groupId < 0)
    {
        qWarning() << "onGroupInviteAccepted: Unable to accept group invite";
        return;
    }
}

void Widget::onGroupMessageReceived(int groupnumber, int peernumber, const QString& message, bool isAction)
{
    Group* g = GroupList::findGroup(groupnumber);
    if (!g)
        return;

    ToxId author = Core::getInstance()->getGroupPeerToxId(groupnumber, peernumber);

    bool targeted = !author.isSelf() && (message.contains(nameMention) || message.contains(sanitizedNameMention));
    if (targeted && !isAction)
        g->getChatForm()->addAlertMessage(author, message, QDateTime::currentDateTime());
    else
        g->getChatForm()->addMessage(author, message, isAction, QDateTime::currentDateTime(), true);

    newGroupMessageAlert(g->getGroupId(), targeted || Settings::getInstance().getGroupAlwaysNotify());
}

void Widget::onGroupNamelistChanged(int groupnumber, int peernumber, uint8_t Change)
{
    Group* g = GroupList::findGroup(groupnumber);
    if (!g)
    {
        qDebug() << "onGroupNamelistChanged: Group "<<groupnumber<<" not found, creating it";
        g = createGroup(groupnumber);
    }

    TOX_CHAT_CHANGE change = static_cast<TOX_CHAT_CHANGE>(Change);
    if (change == TOX_CHAT_CHANGE_PEER_ADD)
    {
        // g->addPeer(peernumber,name);
        g->regeneratePeerList();
        // g->getChatForm()->addSystemInfoMessage(tr("%1 has joined the chat").arg(name), "white", QDateTime::currentDateTime());
        // we can't display these messages until irungentoo fixes peernumbers
        // https://github.com/irungentoo/toxcore/issues/1128
    }
    else if (change == TOX_CHAT_CHANGE_PEER_DEL)
    {
        // g->removePeer(peernumber);
        g->regeneratePeerList();
        // g->getChatForm()->addSystemInfoMessage(tr("%1 has left the chat").arg(name), "white", QDateTime::currentDateTime());
    }
    else if (change == TOX_CHAT_CHANGE_PEER_NAME) // core overwrites old name before telling us it changed...
    {
        QString name = Nexus::getCore()->getGroupPeerName(groupnumber, peernumber);
        if (name.isEmpty())
            name = tr("<Empty>", "Placeholder when someone's name in a group chat is empty");

        g->updatePeer(peernumber, name);
    }
}

void Widget::onGroupTitleChanged(int groupnumber, const QString& author, const QString& title)
{
    Group* g = GroupList::findGroup(groupnumber);
    if (!g)
        return;

    if (!author.isEmpty())
        g->getChatForm()->addSystemInfoMessage(tr("%1 has set the title to %2").arg(author, title), ChatMessage::INFO, QDateTime::currentDateTime());

    contactListWidget->renameGroupWidget(g->getGroupWidget(), title);
    g->setName(title);
    int filter = getFilterCriteria();
    g->getGroupWidget()->searchName(ui->searchContactText->text(), filterGroups(filter));
}

void Widget::onGroupPeerAudioPlaying(int groupnumber, int peernumber)
{
    Group* g = GroupList::findGroup(groupnumber);
    if (!g)
        return;

    g->getChatForm()->peerAudioPlaying(peernumber);
}

void Widget::removeGroup(Group* g, bool fake)
{
    g->getGroupWidget()->setAsInactiveChatroom();
    if (static_cast<GenericChatroomWidget*>(g->getGroupWidget()) == activeChatroomWidget)
    {
        activeChatroomWidget = nullptr;
        onAddClicked();
    }
    GroupList::removeGroup(g->getGroupId(), fake);

    ContentDialog* contentDialog = ContentDialog::getGroupDialog(g->getGroupId());

    if (contentDialog != nullptr)
        contentDialog->removeGroup(g->getGroupId());

    Nexus::getCore()->removeGroup(g->getGroupId(), fake);
    delete g;
    if (contentLayout != nullptr && contentLayout->mainHead->layout()->isEmpty())
        onAddClicked();

    contactListWidget->reDraw();
}

void Widget::removeGroup(int groupId)
{
    removeGroup(GroupList::findGroup(groupId));
}

Group *Widget::createGroup(int groupId)
{
    Group* g = GroupList::findGroup(groupId);
    if (g)
    {
        qWarning() << "createGroup: Group already exists";
        return g;
    }

    Core* core = Nexus::getCore();

    QString groupName = QString("Groupchat #%1").arg(groupId);
    Group* newgroup = GroupList::addGroup(groupId, groupName, core->getAv()->isGroupAvEnabled(groupId));

    contactListWidget->addGroupWidget(newgroup->getGroupWidget());
    newgroup->getGroupWidget()->updateStatusLight();
    contactListWidget->activateWindow();

    connect(settingsWidget, &SettingsWidget::compactToggled, newgroup->getGroupWidget(), &GenericChatroomWidget::compactChange);
    connect(newgroup->getGroupWidget(), SIGNAL(chatroomWidgetClicked(GenericChatroomWidget*,bool)), this, SLOT(onChatroomWidgetClicked(GenericChatroomWidget*,bool)));
    connect(newgroup->getGroupWidget(), SIGNAL(removeGroup(int)), this, SLOT(removeGroup(int)));
    connect(newgroup->getGroupWidget(), SIGNAL(chatroomWidgetClicked(GenericChatroomWidget*)), newgroup->getChatForm(), SLOT(focusInput()));
    connect(newgroup->getChatForm(), &GroupChatForm::sendMessage, core, &Core::sendGroupMessage);
    connect(newgroup->getChatForm(), &GroupChatForm::sendAction, core, &Core::sendGroupAction);
    connect(newgroup->getChatForm(), &GroupChatForm::groupTitleChanged, core, &Core::changeGroupTitle);

    int filter = getFilterCriteria();
    newgroup->getGroupWidget()->searchName(ui->searchContactText->text(), filterGroups(filter));

    return newgroup;
}

void Widget::onEmptyGroupCreated(int groupId)
{
    Group* group = createGroup(groupId);

    // Only rename group if groups are visible.
    if (Widget::getInstance()->groupsVisible())
        group->getGroupWidget()->editName();
}

bool Widget::event(QEvent * e)
{
    switch (e->type())
    {
        case QEvent::MouseButtonPress:
        case QEvent::MouseButtonDblClick:
            focusChatInput();
            break;
        case QEvent::WindowActivate:
            if (activeChatroomWidget != nullptr)
            {
                activeChatroomWidget->resetEventFlags();
                activeChatroomWidget->updateStatusLight();
                setWindowTitle(activeChatroomWidget->getTitle());
            }

            if (eventFlag)
            {
                eventFlag = false;
                eventIcon = false;
                updateIcons();
            }

            focusChatInput();

#ifdef Q_OS_MAC
            emit windowStateChanged(windowState());

        case QEvent::WindowStateChange:
            Nexus::getInstance().updateWindowsStates();
#endif
            break;
        default:
            break;
    }

    return QWidget::event(e);
}

void Widget::onUserAwayCheck()
{
#ifdef QTOX_PLATFORM_EXT
    uint32_t autoAwayTime = Settings::getInstance().getAutoAwayTime() * 60 * 1000;

    if (ui->statusButton->property("status").toString() == "online")
    {
        if (autoAwayTime && Platform::getIdleTime() >= autoAwayTime)
        {
            qDebug() << "auto away activated at" << QTime::currentTime().toString();
            emit statusSet(Status::Away);
            autoAwayActive = true;
        }
    }
    else if (ui->statusButton->property("status").toString() == "away")
    {
        if (autoAwayActive && (!autoAwayTime || Platform::getIdleTime() < autoAwayTime))
        {
            qDebug() << "auto away deactivated at" << QTime::currentTime().toString();
            emit statusSet(Status::Online);
            autoAwayActive = false;
        }
    }
    else if (autoAwayActive)
    {
        autoAwayActive = false;
    }
#endif
}

void Widget::onEventIconTick()
{
    if (eventFlag)
    {
        eventIcon ^= true;
        updateIcons();
    }
}

void Widget::onTryCreateTrayIcon()
{
    static int32_t tries = 15;
    if (!icon && tries--)
    {
        if (QSystemTrayIcon::isSystemTrayAvailable())
        {
            icon = new SystemTrayIcon();
            updateIcons();
            trayMenu = new QMenu(this);

            trayMenu->addAction(statusOnline);
            trayMenu->addAction(statusAway);
            trayMenu->addAction(statusBusy);
            trayMenu->addSeparator();
            trayMenu->addAction(actionLogout);
            trayMenu->addAction(actionQuit);
            icon->setContextMenu(trayMenu);

            connect(icon, &SystemTrayIcon::activated, this, &Widget::onIconClick);

            if (Settings::getInstance().getShowSystemTray())
            {
                icon->show();
                setHidden(Settings::getInstance().getAutostartInTray());
            }
            else
            {
                show();
            }

#ifdef Q_OS_MAC
            qt_mac_set_dock_menu(Nexus::getInstance().dockMenu);
#endif
        }
        else if (!isVisible())
        {
            show();
        }
    }
    else
    {
        disconnect(timer, &QTimer::timeout, this, &Widget::onTryCreateTrayIcon);
        if (!icon)
        {
            qWarning() << "No system tray detected!";
            show();
        }
    }
}

void Widget::setStatusOnline()
{
    if (!ui->statusButton->isEnabled())
        return;

    Nexus::getCore()->setStatus(Status::Online);
}

void Widget::setStatusAway()
{
    if (!ui->statusButton->isEnabled())
        return;

    Nexus::getCore()->setStatus(Status::Away);
}

void Widget::setStatusBusy()
{
    if (!ui->statusButton->isEnabled())
        return;

    Nexus::getCore()->setStatus(Status::Busy);
}

void Widget::onMessageSendResult(uint32_t friendId, const QString& message, int messageId)
{
    Q_UNUSED(message)
    Q_UNUSED(messageId)
    Friend* f = FriendList::findFriend(friendId);
    if (!f)
        return;
}

void Widget::onGroupSendResult(int groupId, const QString& message, int result)
{
    Q_UNUSED(message)
    Group* g = GroupList::findGroup(groupId);
    if (!g)
        return;

    if (result == -1)
        g->getChatForm()->addSystemInfoMessage(tr("Message failed to send"), ChatMessage::INFO, QDateTime::currentDateTime());
}

void Widget::onFriendTypingChanged(int friendId, bool isTyping)
{
    Friend* f = FriendList::findFriend(friendId);
    if (!f)
        return;

    f->getChatForm()->setFriendTyping(isTyping);
}

void Widget::onSetShowSystemTray(bool newValue)
{
    if (icon)
        icon->setVisible(newValue);
}

void Widget::saveWindowGeometry()
{
    Settings::getInstance().setWindowGeometry(saveGeometry());
    Settings::getInstance().setWindowState(saveState());
}

void Widget::saveSplitterGeometry()
{
    Settings::getInstance().setSplitterState(ui->mainSplitter->saveState());
}

void Widget::onSplitterMoved(int pos, int index)
{
    Q_UNUSED(pos);
    Q_UNUSED(index);
    saveSplitterGeometry();
}

void Widget::cycleContacts(bool forward)
{
    contactListWidget->cycleContacts(activeChatroomWidget, forward);
}

bool Widget::filterGroups(int index)
{
    switch (index)
    {
        case FilterCriteria::Offline:
        case FilterCriteria::Friends:
            return true;
        default:
            return false;
    }
}

bool Widget::filterOffline(int index)
{
    switch (index)
    {
        case FilterCriteria::Online:
        case FilterCriteria::Groups:
            return true;
        default:
            return false;
    }
}

bool Widget::filterOnline(int index)
{
    switch (index)
    {
        case FilterCriteria::Offline:
        case FilterCriteria::Groups:
            return true;
        default:
            return false;
    }
}

void Widget::processOfflineMsgs()
{
    if (OfflineMsgEngine::globalMutex.tryLock())
    {
        QList<Friend*> frnds = FriendList::getAllFriends();
        for (Friend *f : frnds)
            f->getChatForm()->getOfflineMsgEngine()->deliverOfflineMsgs();

        OfflineMsgEngine::globalMutex.unlock();
    }
}

void Widget::clearAllReceipts()
{
    QList<Friend*> frnds = FriendList::getAllFriends();
    for (Friend *f : frnds)
        f->getChatForm()->getOfflineMsgEngine()->removeAllReceipts();
}

void Widget::reloadTheme()
{
    QString statusPanelStyle = Style::getStylesheet(":/ui/window/statusPanel.css");
    ui->tooliconsZone->setStyleSheet(Style::resolve("QPushButton{background-color:@themeDark;border:none;}QPushButton:hover{background-color:@themeMediumDark;border:none;}QPushButton:checked{background-color:@themeMedium;border:none;}QPushButton:pressed{background-color:@themeMediumLight;border:none;}"));
    ui->statusPanel->setStyleSheet(statusPanelStyle);
    ui->statusHead->setStyleSheet(statusPanelStyle);
    ui->friendList->setStyleSheet(Style::getStylesheet(":/ui/friendList/friendList.css"));
    ui->statusButton->setStyleSheet(Style::getStylesheet(":/ui/statusButton/statusButton.css"));
    contactListWidget->reDraw();

    for (Friend* f : FriendList::getAllFriends())
        f->getFriendWidget()->reloadTheme();

    for (Group* g : GroupList::getAllGroups())
        g->getGroupWidget()->reloadTheme();
}

void Widget::nextContact()
{
    cycleContacts(true);
}

void Widget::previousContact()
{
    cycleContacts(false);
}

QString Widget::getStatusIconPath(Status status)
{
    switch (status)
    {
    case Status::Online:
        return ":/img/status/dot_online.svg";
    case Status::Away:
        return ":/img/status/dot_away.svg";
    case Status::Busy:
        return ":/img/status/dot_busy.svg";
    case Status::Offline:
    default:
        return ":/img/status/dot_offline.svg";
    }
}

inline QIcon Widget::prepareIcon(QString path, uint32_t w, uint32_t h)
{
#ifdef Q_OS_LINUX

    QString desktop = getenv("XDG_CURRENT_DESKTOP");
    if (desktop.isEmpty())
    {
        desktop = getenv("DESKTOP_SESSION");
    }
    desktop = desktop.toLower();

    if (desktop == "xfce" || desktop.contains("gnome") || desktop == "mate" || desktop == "x-cinnamon")
    {
        if (w > 0 && h > 0)
        {
            QSvgRenderer renderer(path);

            QPixmap pm(w, h);
            pm.fill(Qt::transparent);
            QPainter painter(&pm);
            renderer.render(&painter, pm.rect());

            return QIcon(pm);
        }
    }
#endif
    return QIcon(path);
}

QPixmap Widget::getStatusIconPixmap(QString path, uint32_t w, uint32_t h)
{
    QPixmap pix(w, h);
    pix.load(path);
    return pix;
}

QString Widget::getStatusTitle(Status status)
{
    switch (status)
    {
    case Status::Online:
        return QStringLiteral("online");
    case Status::Away:
        return QStringLiteral("away");
    case Status::Busy:
        return QStringLiteral("busy");
    case Status::Offline:
    default:
        return QStringLiteral("offline");
    }
}

Status Widget::getStatusFromString(QString status)
{
    if (status == QStringLiteral("online"))
        return Status::Online;
    else if (status == QStringLiteral("away"))
        return Status::Away;
    else if (status == QStringLiteral("busy"))
        return Status::Busy;
    else
        return Status::Offline;
}

void Widget::searchContacts()
{
    QString searchString = ui->searchContactText->text();
    int filter = getFilterCriteria();

    contactListWidget->searchChatrooms(searchString, filterOnline(filter), filterOffline(filter), filterGroups(filter));

    updateFilterText();

    contactListWidget->reDraw();
}

void Widget::changeDisplayMode()
{
    filterDisplayGroup->setEnabled(false);

    if (filterDisplayGroup->checkedAction() == filterDisplayActivity)
        contactListWidget->setMode(FriendListWidget::Activity);
    else if (filterDisplayGroup->checkedAction() == filterDisplayName)
        contactListWidget->setMode(FriendListWidget::Name);

    searchContacts();
    filterDisplayGroup->setEnabled(true);

    updateFilterText();
}

void Widget::updateFilterText()
{
     ui->searchContactFilterBox->setText(filterDisplayGroup->checkedAction()->text() + QStringLiteral(" | ") + filterGroup->checkedAction()->text());
}

int Widget::getFilterCriteria() const
{
    QAction* checked = filterGroup->checkedAction();

    if (checked == filterOnlineAction)
        return Online;
    else if (checked == filterOfflineAction)
        return Offline;
    else if (checked == filterFriendsAction)
        return Friends;
    else if (checked == filterGroupsAction)
        return Groups;

    return All;
}

void Widget::searchCircle(CircleWidget *circleWidget)
{
    int filter = getFilterCriteria();
    circleWidget->search(ui->searchContactText->text(), true, filterOnline(filter), filterOffline(filter));
}

void Widget::searchItem(GenericChatItemWidget *chatItem, GenericChatItemWidget::ItemType type)
{
    bool hide;
    int filter = getFilterCriteria();
    switch (type)
    {
        case GenericChatItemWidget::GroupItem:
            hide = filterGroups(filter);
            break;
        default:
            hide = true;
    }

    chatItem->searchName(ui->searchContactText->text(), hide);
}

bool Widget::groupsVisible() const
{
    int filter = getFilterCriteria();
    return !filterGroups(filter);
}

void Widget::friendListContextMenu(const QPoint &pos)
{
    QMenu menu(this);
    QAction *createGroupAction = menu.addAction(tr("Create new group..."));
    QAction *addCircleAction = menu.addAction(tr("Add new circle..."));
    QAction *chosenAction = menu.exec(ui->friendList->mapToGlobal(pos));

    if (chosenAction == addCircleAction)
        contactListWidget->addCircleWidget();
    else if (chosenAction == createGroupAction)
        Nexus::getCore()->createGroup();
}

void Widget::friendRequestsUpdate()
{
    unsigned int unreadFriendRequests = Settings::getInstance().getUnreadFriendRequests();

    if (unreadFriendRequests == 0)
    {
        delete friendRequestsButton;
        friendRequestsButton = nullptr;
    }
    else if (!friendRequestsButton)
    {
        friendRequestsButton = new QPushButton(this);
        friendRequestsButton->setObjectName("green");
        ui->statusLayout->insertWidget(2, friendRequestsButton);

        connect(friendRequestsButton, &QPushButton::released, [this]()
        {
            onAddClicked();
            addFriendForm->setMode(AddFriendForm::Mode::FriendRequest);
        });
    }

    if (friendRequestsButton)
        friendRequestsButton->setText(tr("%n New Friend Request(s)", "", unreadFriendRequests));
}

void Widget::groupInvitesUpdate()
{
    if (unreadGroupInvites == 0)
    {
        delete groupInvitesButton;
        groupInvitesButton = nullptr;
    }
    else if (!groupInvitesButton)
    {
        groupInvitesButton = new QPushButton(this);
        groupInvitesButton->setObjectName("green");
        ui->statusLayout->insertWidget(2, groupInvitesButton);

        connect(groupInvitesButton, &QPushButton::released, this, &Widget::onGroupClicked);
    }

    if (groupInvitesButton)
        groupInvitesButton->setText(tr("%n New Group Invite(s)", "", unreadGroupInvites));
}

void Widget::groupInvitesClear()
{
    unreadGroupInvites = 0;
    groupInvitesUpdate();
}

void Widget::setActiveToolMenuButton(ActiveToolMenuButton newActiveButton)
{
    ui->addButton->setChecked(newActiveButton == Widget::AddButton);
    ui->addButton->setDisabled(newActiveButton == Widget::AddButton);
    ui->groupButton->setChecked(newActiveButton == Widget::GroupButton);
    ui->groupButton->setDisabled(newActiveButton == Widget::GroupButton);
    ui->transferButton->setChecked(newActiveButton == Widget::TransferButton);
    ui->transferButton->setDisabled(newActiveButton == Widget::TransferButton);
    ui->settingsButton->setChecked(newActiveButton == Widget::SettingButton);
    ui->settingsButton->setDisabled(newActiveButton == Widget::SettingButton);
}

void Widget::retranslateUi()
{
    Core* core = Nexus::getCore();
    ui->retranslateUi(this);
    setUsername(core->getUsername());
    setStatusMessage(core->getStatusMessage());

    filterDisplayName->setText(tr("By Name"));
    filterDisplayActivity->setText(tr("By Activity"));
    filterAllAction->setText(tr("All"));
    filterOnlineAction->setText(tr("Online"));
    filterOfflineAction->setText(tr("Offline"));
    filterFriendsAction->setText(tr("Friends"));
    filterGroupsAction->setText(tr("Groups"));
    ui->searchContactText->setPlaceholderText(tr("Search Contacts"));
    updateFilterText();

    ui->searchContactText->setPlaceholderText(tr("Search Contacts"));
    statusOnline->setText(tr("Online", "Button to set your status to 'Online'"));
    statusAway->setText(tr("Away", "Button to set your status to 'Away'"));
    statusBusy->setText(tr("Busy", "Button to set your status to 'Busy'"));
    actionLogout->setText(tr("Logout", "Tray action menu to logout user"));
    actionQuit->setText(tr("Exit", "Tray action menu to exit tox"));

    if (!Settings::getInstance().getSeparateWindow())
        setWindowTitle(fromDialogType(AddDialog));

    friendRequestsUpdate();
    groupInvitesUpdate();


#ifdef Q_OS_MAC
    Nexus::getInstance().retranslateUi();

    filterMenu->menuAction()->setText(tr("Filter..."));

    fileMenu->setText(tr("File"));
    editMenu->setText(tr("Edit"));
    contactMenu->setText(tr("Contacts"));
    changeStatusMenu->menuAction()->setText(tr("Change Status"));
    editProfileAction->setText(tr("Edit Profile"));
    logoutAction->setText(tr("Log out"));
    addContactAction->setText(tr("Add Contact..."));
    nextConversationAction->setText(tr("Next Conversation"));
    previousConversationAction->setText(tr("Previous Conversation"));
#endif
}

void Widget::focusChatInput()
{
    if (activeChatroomWidget)
    {
        if (Friend* f = activeChatroomWidget->getFriend())
            f->getChatForm()->focusInput();
        else if (Group* g = activeChatroomWidget->getGroup())
            g->getChatForm()->focusInput();
    }
}