matrixion/src/TextInputWidget.cc

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/*
* nheko Copyright (C) 2017 Konstantinos Sideris <siderisk@auth.gr>
*
* 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 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
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <QAbstractTextDocumentLayout>
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#include <QDebug>
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#include <QFile>
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#include <QFileDialog>
#include <QImageReader>
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#include <QPainter>
#include <QStyleOption>
#include "Config.h"
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#include "TextInputWidget.h"
static constexpr size_t INPUT_HISTORY_SIZE = 127;
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FilteredTextEdit::FilteredTextEdit(QWidget *parent)
: QTextEdit{parent}
, history_index_{0}
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{
connect(document()->documentLayout(),
&QAbstractTextDocumentLayout::documentSizeChanged,
this,
&FilteredTextEdit::updateGeometry);
QSizePolicy policy(QSizePolicy::Expanding, QSizePolicy::Fixed);
policy.setHeightForWidth(true);
setSizePolicy(policy);
working_history_.push_back("");
connect(this, &QTextEdit::textChanged, this, &FilteredTextEdit::textChanged);
setAcceptRichText(false);
typingTimer_ = new QTimer(this);
typingTimer_->setInterval(1000);
typingTimer_->setSingleShot(true);
connect(typingTimer_, &QTimer::timeout, this, &FilteredTextEdit::stopTyping);
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}
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void
FilteredTextEdit::keyPressEvent(QKeyEvent *event)
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{
const bool isModifier = (event->modifiers() != Qt::NoModifier);
if (!isModifier) {
if (!typingTimer_->isActive())
emit startedTyping();
typingTimer_->start();
}
switch (event->key()) {
case Qt::Key_Return:
case Qt::Key_Enter:
if (!(event->modifiers() & Qt::ShiftModifier)) {
stopTyping();
submit();
} else {
QTextEdit::keyPressEvent(event);
}
break;
case Qt::Key_Up: {
auto initial_cursor = textCursor();
QTextEdit::keyPressEvent(event);
if (textCursor() == initial_cursor &&
history_index_ + 1 < working_history_.size()) {
++history_index_;
setPlainText(working_history_[history_index_]);
moveCursor(QTextCursor::End);
}
break;
}
case Qt::Key_Down: {
auto initial_cursor = textCursor();
QTextEdit::keyPressEvent(event);
if (textCursor() == initial_cursor && history_index_ > 0) {
--history_index_;
setPlainText(working_history_[history_index_]);
moveCursor(QTextCursor::End);
}
break;
}
default:
QTextEdit::keyPressEvent(event);
break;
}
}
void
FilteredTextEdit::stopTyping()
{
typingTimer_->stop();
emit stoppedTyping();
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}
QSize
FilteredTextEdit::sizeHint() const
{
ensurePolished();
auto margins = viewportMargins();
margins += document()->documentMargin();
QSize size = document()->size().toSize();
size.rwidth() += margins.left() + margins.right();
size.rheight() += margins.top() + margins.bottom();
return size;
}
QSize
FilteredTextEdit::minimumSizeHint() const
{
ensurePolished();
auto margins = viewportMargins();
margins += document()->documentMargin();
margins += contentsMargins();
QSize size(fontMetrics().averageCharWidth() * 10,
fontMetrics().lineSpacing() + margins.top() + margins.bottom());
return size;
}
void
FilteredTextEdit::submit()
{
if (toPlainText().trimmed().isEmpty())
return;
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if (true_history_.size() == INPUT_HISTORY_SIZE)
true_history_.pop_back();
true_history_.push_front(toPlainText());
working_history_ = true_history_;
working_history_.push_front("");
history_index_ = 0;
QString text = toPlainText();
if (text.startsWith('/')) {
int command_end = text.indexOf(' ');
if (command_end == -1)
command_end = text.size();
auto name = text.mid(1, command_end - 1);
auto args = text.mid(command_end + 1);
if (name.isEmpty() || name == "/") {
message(args);
} else {
command(name, args);
}
} else {
message(std::move(text));
}
clear();
}
void
FilteredTextEdit::textChanged()
{
working_history_[history_index_] = toPlainText();
}
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TextInputWidget::TextInputWidget(QWidget *parent)
: QFrame(parent)
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{
setFont(QFont("Emoji One"));
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setFixedHeight(conf::textInput::height);
setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
setCursor(Qt::ArrowCursor);
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topLayout_ = new QHBoxLayout();
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topLayout_->setSpacing(0);
topLayout_->setContentsMargins(15, 0, 15, 5);
QIcon send_file_icon;
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send_file_icon.addFile(":/icons/icons/ui/paper-clip-outline.png");
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sendFileBtn_ = new FlatButton(this);
sendFileBtn_->setIcon(send_file_icon);
sendFileBtn_->setIconSize(QSize(24, 24));
spinner_ = new LoadingIndicator(this);
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spinner_->setFixedHeight(32);
spinner_->setFixedWidth(32);
spinner_->setObjectName("FileUploadSpinner");
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spinner_->hide();
QFont font;
font.setPixelSize(conf::textInputFontSize);
input_ = new FilteredTextEdit(this);
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input_->setFixedHeight(32);
input_->setFont(font);
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input_->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
input_->setPlaceholderText(tr("Write a message..."));
input_->setStyleSheet("border: none; padding-top: 5px;");
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sendMessageBtn_ = new FlatButton(this);
QIcon send_message_icon;
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send_message_icon.addFile(":/icons/icons/ui/cursor.png");
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sendMessageBtn_->setIcon(send_message_icon);
sendMessageBtn_->setIconSize(QSize(24, 24));
emojiBtn_ = new emoji::PickButton(this);
QIcon emoji_icon;
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emoji_icon.addFile(":/icons/icons/ui/smile.png");
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emojiBtn_->setIcon(emoji_icon);
emojiBtn_->setIconSize(QSize(24, 24));
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topLayout_->addWidget(sendFileBtn_);
topLayout_->addWidget(input_);
topLayout_->addWidget(emojiBtn_);
topLayout_->addWidget(sendMessageBtn_);
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setLayout(topLayout_);
connect(sendMessageBtn_, &FlatButton::clicked, input_, &FilteredTextEdit::submit);
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connect(sendFileBtn_, SIGNAL(clicked()), this, SLOT(openFileSelection()));
connect(input_, &FilteredTextEdit::message, this, &TextInputWidget::sendTextMessage);
connect(input_, &FilteredTextEdit::command, this, &TextInputWidget::command);
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connect(emojiBtn_,
SIGNAL(emojiSelected(const QString &)),
this,
SLOT(addSelectedEmoji(const QString &)));
connect(input_, &FilteredTextEdit::startedTyping, this, &TextInputWidget::startedTyping);
connect(input_, &FilteredTextEdit::stoppedTyping, this, &TextInputWidget::stoppedTyping);
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}
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void
TextInputWidget::addSelectedEmoji(const QString &emoji)
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{
QTextCursor cursor = input_->textCursor();
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QFont emoji_font("Emoji One");
emoji_font.setPixelSize(conf::emojiSize);
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QFont text_font("Open Sans");
text_font.setPixelSize(conf::fontSize);
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QTextCharFormat charfmt;
charfmt.setFont(emoji_font);
input_->setCurrentCharFormat(charfmt);
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input_->insertPlainText(emoji);
cursor.movePosition(QTextCursor::End);
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charfmt.setFont(text_font);
input_->setCurrentCharFormat(charfmt);
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input_->show();
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}
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void
TextInputWidget::command(QString command, QString args)
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{
if (command == "me") {
sendEmoteMessage(args);
} else if (command == "join") {
sendJoinRoomRequest(args);
}
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}
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void
TextInputWidget::openFileSelection()
{
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QStringList imageExtensions;
imageExtensions << "jpeg"
<< "gif"
<< "png"
<< "bmp"
<< "tiff"
<< "webp";
auto fileName =
QFileDialog::getOpenFileName(this, tr("Select an file"), "", tr("All Files (*)"));
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if (fileName.isEmpty())
return;
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auto format = QString(QImageReader::imageFormat(fileName));
if (imageExtensions.contains(format))
emit uploadImage(fileName);
else
emit uploadFile(fileName);
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showUploadSpinner();
}
void
TextInputWidget::showUploadSpinner()
{
topLayout_->removeWidget(sendFileBtn_);
sendFileBtn_->hide();
topLayout_->insertWidget(0, spinner_);
spinner_->start();
}
void
TextInputWidget::hideUploadSpinner()
{
topLayout_->removeWidget(spinner_);
topLayout_->insertWidget(0, sendFileBtn_);
sendFileBtn_->show();
spinner_->stop();
}
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TextInputWidget::~TextInputWidget() {}
void
TextInputWidget::stopTyping()
{
input_->stopTyping();
}
void
TextInputWidget::focusInEvent(QFocusEvent *event)
{
input_->setFocus(event->reason());
}
void
TextInputWidget::paintEvent(QPaintEvent *)
{
QStyleOption opt;
opt.init(this);
QPainter p(this);
style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
}