119 lines
3.2 KiB
C++
119 lines
3.2 KiB
C++
#include "ui/TextLabel.h"
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#include <QAbstractTextDocumentLayout>
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#include <QDesktopServices>
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#include <QEvent>
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#include <QWheelEvent>
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#include "Utils.h"
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bool
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ContextMenuFilter::eventFilter(QObject *obj, QEvent *event)
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{
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if (event->type() == QEvent::MouseButtonPress) {
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emit contextMenuIsOpening();
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return true;
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}
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return QObject::eventFilter(obj, event);
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}
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TextLabel::TextLabel(QWidget *parent)
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: TextLabel(QString(), parent)
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{}
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TextLabel::TextLabel(const QString &text, QWidget *parent)
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: QTextBrowser(parent)
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{
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document()->setDefaultStyleSheet(QString("a {color: %1; }").arg(utils::linkColor()));
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setText(text);
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setOpenExternalLinks(true);
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// Make it look and feel like an ordinary label.
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setReadOnly(true);
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setFrameStyle(QFrame::NoFrame);
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QPalette pal = palette();
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pal.setColor(QPalette::Base, Qt::transparent);
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setPalette(pal);
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// Wrap anywhere but prefer words, adjust minimum height on the fly.
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setLineWrapMode(QTextEdit::WidgetWidth);
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setWordWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
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connect(document()->documentLayout(),
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&QAbstractTextDocumentLayout::documentSizeChanged,
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this,
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&TextLabel::adjustHeight);
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document()->setDocumentMargin(0);
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setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
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setFixedHeight(0);
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connect(this, &TextLabel::linkActivated, this, &TextLabel::handleLinkActivation);
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auto filter = new ContextMenuFilter(this);
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installEventFilter(filter);
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connect(filter, &ContextMenuFilter::contextMenuIsOpening, this, [this]() {
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contextMenuRequested_ = true;
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});
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}
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void
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TextLabel::focusOutEvent(QFocusEvent *e)
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{
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QTextBrowser::focusOutEvent(e);
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// We keep the selection available for the context menu.
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if (contextMenuRequested_) {
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contextMenuRequested_ = false;
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return;
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}
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QTextCursor cursor = textCursor();
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cursor.clearSelection();
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setTextCursor(cursor);
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}
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void
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TextLabel::mousePressEvent(QMouseEvent *e)
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{
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link_ = (e->button() & Qt::LeftButton) ? anchorAt(e->pos()) : QString();
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QTextBrowser::mousePressEvent(e);
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}
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void
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TextLabel::mouseReleaseEvent(QMouseEvent *e)
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{
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if (e->button() & Qt::LeftButton && !link_.isEmpty() && anchorAt(e->pos()) == link_) {
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emit linkActivated(link_);
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return;
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}
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QTextBrowser::mouseReleaseEvent(e);
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}
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void
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TextLabel::wheelEvent(QWheelEvent *event)
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{
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event->ignore();
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}
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void
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TextLabel::handleLinkActivation(const QUrl &url)
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{
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auto parts = url.toString().split('/');
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auto defaultHandler = [](const QUrl &url) { QDesktopServices::openUrl(url); };
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if (url.host() != "matrix.to" || parts.isEmpty())
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return defaultHandler(url);
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try {
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using namespace mtx::identifiers;
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parse<User>(parts.last().toStdString());
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} catch (const std::exception &) {
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return defaultHandler(url);
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}
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emit userProfileTriggered(parts.last());
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}
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