qTox/src/widget/form/genericchatform.cpp

/*
    Copyright (C) 2014 by Project Tox <https://tox.im>

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

    This program 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.
    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 COPYING file for more details.
*/

#include "genericchatform.h"
#include "ui_mainwindow.h"

#include <QFileDialog>
#include <QHBoxLayout>
#include <QDebug>
#include <QShortcut>

#include "src/misc/smileypack.h"
#include "src/widget/emoticonswidget.h"
#include "src/misc/style.h"
#include "src/widget/widget.h"
#include "src/misc/settings.h"
#include "src/widget/tool/chattextedit.h"
#include "src/widget/maskablepixmapwidget.h"
#include "src/core.h"
#include "src/grouplist.h"
#include "src/group.h"
#include "src/friendlist.h"
#include "src/friend.h"
#include "src/chatlog/chatlog.h"
#include "src/chatlog/content/timestamp.h"

GenericChatForm::GenericChatForm(QWidget *parent)
  : QWidget(parent)
  , audioInputFlag(false)
  , audioOutputFlag(false)
{
    curRow = 0;
    headWidget = new QWidget();

    nameLabel = new CroppingLabel();
    nameLabel->setObjectName("nameLabel");
    nameLabel->setMinimumHeight(Style::getFont(Style::Medium).pixelSize());
    nameLabel->setEditable(true);

    avatar = new MaskablePixmapWidget(this, QSize(40,40), ":/img/avatar_mask.png");
    QHBoxLayout *headLayout = new QHBoxLayout(),
            *mainFootLayout = new QHBoxLayout();
    
    QVBoxLayout *mainLayout = new QVBoxLayout(),
                *footButtonsSmall = new QVBoxLayout(),
                *micButtonsLayout = new QVBoxLayout();

    QGridLayout *buttonsLayout = new QGridLayout();
    
    headTextLayout = new QVBoxLayout();    

    chatWidget = new ChatLog(this);
    chatWidget->setBusyNotification(ChatMessage::createBusyNotification());

    connect(&Settings::getInstance(), &Settings::emojiFontChanged, this, [this]() { chatWidget->forceRelayout(); });

    msgEdit = new ChatTextEdit();

    sendButton = new QPushButton();
    sendButton->setToolTip(tr("Send message"));
    emoteButton = new QPushButton();
    emoteButton->setToolTip(tr("Smileys"));

    // Setting the sizes in the CSS doesn't work (glitch with high DPIs)
    fileButton = new QPushButton();
    fileButton->setToolTip(tr("Send file(s)"));
    callButton = new QPushButton();
    callButton->setFixedSize(50,40);
    callButton->setToolTip(tr("Start an audio call"));
    videoButton = new QPushButton();
    videoButton->setFixedSize(50,40);
    videoButton->setToolTip(tr("Start a video call"));
    volButton = new QPushButton();
    //volButton->setFixedSize(25,20);
    volButton->setToolTip("");
    micButton = new QPushButton();
    // micButton->setFixedSize(25,20);
    micButton->setToolTip("");

    footButtonsSmall->setSpacing(2);

    msgEdit->setStyleSheet(Style::getStylesheet(":/ui/msgEdit/msgEdit.css"));
    msgEdit->setFixedHeight(50);
    msgEdit->setFrameStyle(QFrame::NoFrame);

    sendButton->setStyleSheet(Style::getStylesheet(":/ui/sendButton/sendButton.css"));
    fileButton->setStyleSheet(Style::getStylesheet(":/ui/fileButton/fileButton.css"));
    emoteButton->setStyleSheet(Style::getStylesheet(":/ui/emoteButton/emoteButton.css"));

    callButton->setObjectName("green");
    callButton->setStyleSheet(Style::getStylesheet(":/ui/callButton/callButton.css"));

    videoButton->setObjectName("green");
    videoButton->setStyleSheet(Style::getStylesheet(":/ui/videoButton/videoButton.css"));

    QString volButtonStylesheet = Style::getStylesheet(":/ui/volButton/volButton.css");
    volButton->setObjectName("grey");
    volButton->setStyleSheet(volButtonStylesheet);

    QString micButtonStylesheet = Style::getStylesheet(":/ui/micButton/micButton.css");
    micButton->setObjectName("grey");
    micButton->setStyleSheet(micButtonStylesheet);

    setLayout(mainLayout);
    mainLayout->addWidget(chatWidget);
    mainLayout->addLayout(mainFootLayout);
    mainLayout->setMargin(0);

    footButtonsSmall->addWidget(emoteButton);
    footButtonsSmall->addWidget(fileButton);

    mainFootLayout->addWidget(msgEdit);
    mainFootLayout->addLayout(footButtonsSmall);
    mainFootLayout->addSpacing(5);
    mainFootLayout->addWidget(sendButton);
    mainFootLayout->setSpacing(0);
    
    headTextLayout->addStretch();    
    headTextLayout->addWidget(nameLabel);
    headTextLayout->addStretch();
    
    micButtonsLayout->setSpacing(0);
    micButtonsLayout->addWidget(micButton, Qt::AlignTop | Qt::AlignRight);
    micButtonsLayout->addSpacing(4);
    micButtonsLayout->addWidget(volButton, Qt::AlignTop | Qt::AlignRight);
    
    buttonsLayout->addLayout(micButtonsLayout, 0, 0, 2, 1, Qt::AlignTop | Qt::AlignRight);
    buttonsLayout->addWidget(callButton, 0, 1, 2, 1, Qt::AlignTop);
    buttonsLayout->addWidget(videoButton, 0, 2, 2, 1, Qt::AlignTop);
    buttonsLayout->setVerticalSpacing(0);
    buttonsLayout->setHorizontalSpacing(4);
        
    headLayout->addWidget(avatar, Qt::AlignTop | Qt::AlignLeft);
    headLayout->addSpacing(5);
    headLayout->addLayout(headTextLayout,  Qt::AlignTop | Qt::AlignAbsolute);
    headLayout->addLayout(buttonsLayout, Qt::AlignTop | Qt::AlignRight);

    headWidget->setLayout(headLayout);
    
    //Fix for incorrect layouts on OS X as per
    //https://bugreports.qt-project.org/browse/QTBUG-14591
    sendButton->setAttribute(Qt::WA_LayoutUsesWidgetRect);
    fileButton->setAttribute(Qt::WA_LayoutUsesWidgetRect);
    emoteButton->setAttribute(Qt::WA_LayoutUsesWidgetRect);
    micButton->setAttribute(Qt::WA_LayoutUsesWidgetRect);
    volButton->setAttribute(Qt::WA_LayoutUsesWidgetRect);
    callButton->setAttribute(Qt::WA_LayoutUsesWidgetRect);
    videoButton->setAttribute(Qt::WA_LayoutUsesWidgetRect);

    menu.addActions(chatWidget->actions());
    menu.addSeparator();
    menu.addAction(QIcon::fromTheme("document-save"), tr("Save chat log"), this, SLOT(onSaveLogClicked()));
    menu.addAction(QIcon::fromTheme("edit-clear"), tr("Clear displayed messages"), this, SLOT(clearChatArea(bool)));
    menu.addSeparator();

    connect(emoteButton, &QPushButton::clicked, this, &GenericChatForm::onEmoteButtonClicked);
    connect(chatWidget, &ChatLog::customContextMenuRequested, this, &GenericChatForm::onChatContextMenuRequested);

    new QShortcut(QKeySequence(Qt::Key_PageUp), this, SLOT(previousContact()));    
    new QShortcut(QKeySequence(Qt::Key_PageDown), this, SLOT(nextContact()));
        
    chatWidget->setStyleSheet(Style::getStylesheet(":/ui/chatArea/chatArea.css"));
    headWidget->setStyleSheet(Style::getStylesheet(":/ui/chatArea/chatHead.css"));
}

void GenericChatForm::previousContact()
{
    parent->previousContact();
}

void GenericChatForm::nextContact()
{
    parent->nextContact();
}

bool GenericChatForm::isEmpty()
{
    return chatWidget->isEmpty();
}

ChatLog *GenericChatForm::getChatLog() const
{
    return chatWidget;
}

void GenericChatForm::setName(const QString &newName)
{
    nameLabel->setText(newName);
    nameLabel->setToolTip(newName); // for overlength names
}

void GenericChatForm::show(Ui::MainWindow &ui)
{
    ui.mainContent->layout()->addWidget(this);
    ui.mainHead->layout()->addWidget(headWidget);
    headWidget->show();
    QWidget::show();
}

void GenericChatForm::onChatContextMenuRequested(QPoint pos)
{
    QWidget* sender = (QWidget*)QObject::sender();
    pos = sender->mapToGlobal(pos);

    menu.exec(pos);
}

ChatMessage::Ptr GenericChatForm::addMessage(const ToxID& author, const QString &message, bool isAction,
                                             const QDateTime &datetime, bool isSent)
{
    QString authorStr = author.isMine() ? Core::getInstance()->getUsername() : resolveToxID(author);

    ChatMessage::Ptr msg;
    if(isAction)
    {
        msg = ChatMessage::createChatMessage(authorStr, message, ChatMessage::ACTION, false);
        previousId.clear();
    }
    else
    {
        msg = ChatMessage::createChatMessage(authorStr, message, ChatMessage::NORMAL, author.isMine());
        if(author == previousId)
            msg->hideSender();

        previousId = author;
    }

    insertChatMessage(msg);

    if(isSent)
        msg->markAsSent(datetime);

    return msg;
}

ChatMessage::Ptr GenericChatForm::addSelfMessage(const QString &message, bool isAction, const QDateTime &datetime, bool isSent)
{
    return addMessage(Core::getInstance()->getSelfId(), message, isAction, datetime, isSent);
}

void GenericChatForm::addAlertMessage(const ToxID &author, QString message, QDateTime datetime)
{
    QString authorStr = resolveToxID(author);
    ChatMessage::Ptr msg = ChatMessage::createChatMessage(authorStr, message, ChatMessage::ALERT, author.isMine(), datetime);
    insertChatMessage(msg);

    if(author == previousId)
        msg->hideSender();

    previousId = author;
}

void GenericChatForm::onEmoteButtonClicked()
{
    // don't show the smiley selection widget if there are no smileys available
    if (SmileyPack::getInstance().getEmoticons().empty())
        return;

    EmoticonsWidget widget;
    connect(&widget, SIGNAL(insertEmoticon(QString)), this, SLOT(onEmoteInsertRequested(QString)));

    QWidget* sender = qobject_cast<QWidget*>(QObject::sender());
    if (sender)
    {
        QPoint pos = -QPoint(widget.sizeHint().width() / 2, widget.sizeHint().height()) - QPoint(0, 10);
        widget.exec(sender->mapToGlobal(pos));
    }
}

void GenericChatForm::onEmoteInsertRequested(QString str)
{
    // insert the emoticon
    QWidget* sender = qobject_cast<QWidget*>(QObject::sender());
    if (sender)
        msgEdit->insertPlainText(str);

    msgEdit->setFocus(); // refocus so that we can continue typing
}

void GenericChatForm::onSaveLogClicked()
{
    QString path = QFileDialog::getSaveFileName(0, tr("Save chat log"));
    if (path.isEmpty())
        return;

    QFile file(path);
    if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
        return;

    QString plainText;
    auto lines = chatWidget->getLines();
    for(ChatLine::Ptr l : lines)
    {
        Timestamp* rightCol = dynamic_cast<Timestamp*>(l->getContent(2));
        ChatLineContent* middleCol = l->getContent(1);
        ChatLineContent* leftCol = l->getContent(0);

        QString timestamp = (!rightCol || rightCol->getTime().isNull()) ? tr("Not sent") : rightCol->getText();
        QString nick = leftCol->getText();
        QString msg = middleCol->getText();

        plainText += QString("[%2] %1\n%3\n\n").arg(nick, timestamp, msg);
    }

    file.write(plainText.toUtf8());
    file.close();
}

void GenericChatForm::onCopyLogClicked()
{
    chatWidget->copySelectedText();
}

void GenericChatForm::focusInput()
{
    msgEdit->setFocus();
}

void GenericChatForm::addSystemInfoMessage(const QString &message, ChatMessage::SystemMessageType type, const QDateTime &datetime)
{
    previousId.clear();
    insertChatMessage(ChatMessage::createChatInfoMessage(message, type, datetime));
}

void GenericChatForm::clearChatArea(bool notinform)
{
    chatWidget->clear();
    previousId = ToxID();

    if (!notinform)
        addSystemInfoMessage(tr("Cleared"), ChatMessage::INFO, QDateTime::currentDateTime());

    earliestMessage = QDateTime(); //null
    historyBaselineDate = QDateTime::currentDateTime();

    emit chatAreaCleared();
}

void GenericChatForm::onSelectAllClicked()
{
    chatWidget->selectAll();
}

QString GenericChatForm::resolveToxID(const ToxID &id)
{
    Friend *f = FriendList::findFriend(id);
    if (f)
    {
        return f->getDisplayedName();
    } else {
        for (auto it : GroupList::getAllGroups())
        {
            QString res = it->resolveToxID(id);
            if (res.size())
                return res;
        }
    }

    return QString();
}

void GenericChatForm::insertChatMessage(ChatMessage::Ptr msg)
{
    chatWidget->insertChatlineAtBottom(std::dynamic_pointer_cast<ChatLine>(msg));
}