257 lines
8.8 KiB
C++
257 lines
8.8 KiB
C++
#include <QCoreApplication>
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#include "chatview.h"
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#include "messagedelegate.h"
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#include "emoji.h"
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#include "debug_ui.h"
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#include <QPainter>
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#include <QClipboard>
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#include <QApplication>
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#include <QDebug>
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#include <QMouseEvent>
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#include <QKeyEvent>
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#include <QScrollBar>
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// Текст и реакции сообщения используют общий набор анимированных значков.
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static QSet<QString> animatedEmojiPaths(const QModelIndex &index) {
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QSet<QString> paths;
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const QString text = index.data(MsgTextRole).toString();
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for (auto it = g_animatedEmojiMap.constBegin(); it != g_animatedEmojiMap.constEnd(); ++it) {
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if (text.contains(it.key())) paths.insert(it.value());
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}
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for (const auto &reaction : index.data(MsgReactionsRole).toList()) {
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const QString path = g_animatedEmojiMap.value(reaction.toMap().value("emoji").toString());
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if (!path.isEmpty()) paths.insert(path);
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}
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return paths;
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}
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ChatView::ChatView(QWidget *parent)
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: QListView(parent)
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{
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setMouseTracking(true);
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m_scrollDownBtn = new QPushButton(QStringLiteral("\u25BC"), this);
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m_scrollDownBtn->setFixedSize(36, 36);
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m_scrollDownBtn->setCursor(Qt::PointingHandCursor);
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m_scrollDownBtn->setStyleSheet(
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"QPushButton {"
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" background: rgba(60,60,60,180);"
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" color: #ffffff;"
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" border: none;"
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" border-radius: 18px;"
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" font-size: 16px;"
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"}"
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"QPushButton:hover {"
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" background: rgba(90,90,90,220);"
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"}"
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);
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m_scrollDownBtn->setToolTip(QCoreApplication::translate("ChatGui", "Scroll to bottom"));
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m_scrollDownBtn->setVisible(false);
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connect(m_scrollDownBtn, &QPushButton::clicked, this, [this]() {
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emit latestRequested();
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scrollToBottom();
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});
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connect(verticalScrollBar(), &QScrollBar::valueChanged, this, &ChatView::updateScrollDownBtn);
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connect(verticalScrollBar(), &QScrollBar::rangeChanged, this, &ChatView::updateScrollDownBtn);
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m_scrollDownBtn->raise();
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}
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void ChatView::setBackgroundImage(const QString &path) {
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if (!m_background.load(path)) {
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qWarning() << "ChatView: failed to load background" << path;
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return;
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}
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viewport()->update();
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}
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void ChatView::setHistoricalWindow(bool enabled) {
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m_historicalWindow = enabled;
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updateScrollDownBtn();
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}
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void ChatView::resizeEvent(QResizeEvent *event) {
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QListView::resizeEvent(event);
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scheduleDelayedItemsLayout();
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updateScrollDownBtn();
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}
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void ChatView::scrollContentsBy(int dx, int dy) {
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QListView::scrollContentsBy(dx, dy);
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viewport()->update();
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}
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void ChatView::paintEvent(QPaintEvent *event) {
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if (!m_background.isNull()) {
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QPainter p(viewport());
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p.drawTiledPixmap(viewport()->rect(), m_background);
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}
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QListView::paintEvent(event);
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QSet<QString> visible;
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if (model()) {
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const QRect area = viewport()->rect();
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for (int row = 0; row < model()->rowCount(); ++row) {
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const QModelIndex index = model()->index(row, 0);
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if (!visualRect(index).intersects(area)) continue;
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const QString message = QStringLiteral("%1/%2/%3/")
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.arg(index.data(MsgChannelIdRole).toString()).arg(index.data(MsgIdRole).toLongLong())
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.arg(index.data(MsgIsOutgoingRole).toInt());
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for (const auto &path : animatedEmojiPaths(index)) visible.insert(message + path);
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}
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}
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const int appeared = (visible - m_visibleAnimations).size();
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m_visibleAnimations = visible;
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if (appeared > 0) {
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GUI_DEBUG("ChatView: visible animation trigger appeared=%d visible=%d", appeared, (int)visible.size());
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emit animationTriggered();
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}
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}
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bool ChatView::isRowSelected(const QModelIndex &idx) const {
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if (!m_selStart.isValid() || !m_selEnd.isValid() || !idx.isValid())
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return false;
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int r = idx.row();
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int a = m_selStart.row();
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int b = m_selEnd.row();
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if (a > b) qSwap(a, b);
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return r >= a && r <= b;
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}
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void ChatView::mousePressEvent(QMouseEvent *event) {
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if (event->button() != Qt::LeftButton) {
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QListView::mousePressEvent(event);
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return;
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}
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if (hasSelection()) {
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m_selStart = QPersistentModelIndex();
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m_selEnd = QPersistentModelIndex();
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m_textSel = ChatTextSelection{};
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m_selecting = false;
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viewport()->update();
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}
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QModelIndex idx = indexAt(viewport()->mapFrom(this, event->pos()));
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m_pressIndex = QPersistentModelIndex(idx);
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m_pressPos = event->pos();
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QListView::mousePressEvent(event);
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}
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bool ChatView::viewportEvent(QEvent *event) {
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if (event->type() == QEvent::Leave && m_lastHovered.isValid()) {
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m_lastHovered = QPersistentModelIndex();
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}
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return QListView::viewportEvent(event);
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}
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void ChatView::mouseMoveEvent(QMouseEvent *event) {
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if (!m_selecting && m_pressIndex.isValid()) {
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int dx = event->pos().x() - m_pressPos.x();
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int dy = event->pos().y() - m_pressPos.y();
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if (dx * dx + dy * dy >= 25) {
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m_selStart = m_pressIndex;
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m_selEnd = m_pressIndex;
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m_selecting = true;
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QRect r = visualRect(QModelIndex(m_pressIndex));
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m_textSel.index = m_pressIndex;
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m_textSel.clickPos = m_pressPos - r.topLeft();
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m_textSel.dragPos = m_textSel.clickPos;
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m_textSel.active = true;
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viewport()->update();
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}
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}
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if (!m_selecting) {
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QModelIndex idx = indexAt(viewport()->mapFrom(this, event->pos()));
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const bool link = m_linkHitTest && !m_linkHitTest(idx, event->pos()).isEmpty();
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viewport()->setCursor(link ? Qt::PointingHandCursor : Qt::ArrowCursor);
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if (idx != QModelIndex(m_lastHovered)) {
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m_lastHovered = idx;
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const auto paths = animatedEmojiPaths(idx);
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if (!paths.isEmpty()) {
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GUI_DEBUG("ChatView: hover animation trigger row=%d icons=%d", idx.row(), (int)paths.size());
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emit animationTriggered();
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}
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}
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}
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if (!m_selecting) {
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QListView::mouseMoveEvent(event);
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return;
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}
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QModelIndex idx = indexAt(viewport()->mapFrom(this, event->pos()));
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if (idx.isValid()) {
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m_selEnd = idx;
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}
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if (m_textSel.active) {
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QRect r = visualRect(QModelIndex(m_textSel.index));
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m_textSel.dragPos = event->pos() - r.topLeft();
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}
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viewport()->update();
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event->accept();
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}
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void ChatView::mouseReleaseEvent(QMouseEvent *event) {
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const QModelIndex pressed(m_pressIndex);
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if (event->button() == Qt::LeftButton && !m_selecting && pressed.isValid() &&
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(event->pos() - m_pressPos).manhattanLength() < 5 && indexAt(event->pos()) == pressed) {
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const QString link = m_linkHitTest ? m_linkHitTest(pressed, event->pos()) : QString();
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if (!link.isEmpty()) {
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m_pressIndex = QPersistentModelIndex();
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GUI_INFO("message link: activated row=%d bytes=%d", pressed.row(), link.size());
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emit linkActivated(link);
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event->accept(); return;
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}
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}
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if (event->button() == Qt::LeftButton && m_selecting) {
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m_selecting = false;
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viewport()->update();
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}
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m_pressIndex = QPersistentModelIndex();
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QListView::mouseReleaseEvent(event);
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}
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void ChatView::keyPressEvent(QKeyEvent *event) {
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if (event == QKeySequence::Copy) {
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copySelection();
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return;
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}
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QListView::keyPressEvent(event);
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}
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void ChatView::copySelection() {
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if (!hasSelection()) return;
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auto *m = model();
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if (!m) return;
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if (selStart() == selEnd()) {
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QModelIndex idx(selStart());
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QString text = idx.data(MsgTextRole).toString();
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if (m_textSel.startChar >= 0 && m_textSel.endChar > m_textSel.startChar)
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text = text.mid(m_textSel.startChar, m_textSel.endChar - m_textSel.startChar);
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QApplication::clipboard()->clear(QClipboard::Clipboard);
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QApplication::clipboard()->setText(text);
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} else {
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QString r;
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int a = selStart().row(), b = selEnd().row();
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if (a > b) qSwap(a, b);
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for (int i = a; i <= b; ++i) {
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QModelIndex idx = m->index(i, 0);
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if (!r.isEmpty()) r += '\n';
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r += '[' + idx.data(MsgTimeRole).toString() + "] ";
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r += idx.data(MsgAuthorRole).toString() + ": ";
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r += idx.data(MsgTextRole).toString();
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}
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QApplication::clipboard()->clear(QClipboard::Clipboard);
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QApplication::clipboard()->setText(r);
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}
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}
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void ChatView::updateScrollDownBtn() {
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QScrollBar* sb = verticalScrollBar();
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bool atBottom = sb && (sb->value() >= sb->maximum());
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m_scrollDownBtn->setVisible(m_historicalWindow || !atBottom);
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if (!atBottom) {
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QRect vr = viewport()->geometry();
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m_scrollDownBtn->move(vr.right() - 44, vr.bottom() - 44);
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m_scrollDownBtn->raise();
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}
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}
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