Files
neochat/src/libneochat/chatbarsyntaxhighlighter.cpp

84 lines
3.7 KiB
C++

// SPDX-FileCopyrightText: 2020 Carl Schwan <carlschwan@kde.org>
// SPDX-FileCopyrightText: 2025 James Graham <james.h.graham@protonmail.com>
// SPDX-License-Identifier: GPL-2.0-or-later
#include "chatbarsyntaxhighlighter.h"
#include "chatbarcache.h"
#include "chattextitemhelper.h"
#include "enums/chatbartype.h"
ChatBarSyntaxHighlighter::ChatBarSyntaxHighlighter(QObject *parent)
: QSyntaxHighlighter(parent)
{
m_theme = static_cast<Kirigami::Platform::PlatformTheme *>(qmlAttachedPropertiesObject<Kirigami::Platform::PlatformTheme>(this, true));
connect(m_theme, &Kirigami::Platform::PlatformTheme::colorsChanged, this, [this]() {
m_mentionFormat.setForeground(m_theme->linkColor());
m_errorFormat.setForeground(m_theme->negativeTextColor());
});
m_mentionFormat.setFontWeight(QFont::Bold);
m_mentionFormat.setForeground(m_theme->linkColor());
m_errorFormat.setForeground(m_theme->negativeTextColor());
m_errorFormat.setUnderlineStyle(QTextCharFormat::SpellCheckUnderline);
connect(m_checker, &Sonnet::BackgroundChecker::misspelling, this, [this](const QString &word, int start) {
m_errors += {start, word};
m_checker->continueChecking();
});
connect(m_checker, &Sonnet::BackgroundChecker::done, this, [this]() {
m_rehighlightTimer.start();
});
m_rehighlightTimer.setInterval(100);
m_rehighlightTimer.setSingleShot(true);
m_rehighlightTimer.callOnTimeout(this, &QSyntaxHighlighter::rehighlight);
}
void ChatBarSyntaxHighlighter::highlightBlock(const QString &text)
{
if (m_settings.checkerEnabledByDefault()) {
if (text != m_previousText) {
m_previousText = text;
m_checker->stop();
m_errors.clear();
m_checker->setText(text);
}
for (const auto &error : m_errors) {
setFormat(error.first, error.second.size(), m_errorFormat);
}
}
if (!room || type == ChatBarType::None) {
return;
}
auto mentions = room->cacheForType(type)->mentions();
mentions->erase(std::remove_if(mentions->begin(),
mentions->end(),
[this](auto &mention) {
if (document()->toPlainText().isEmpty()) {
return false;
}
if (mention.cursor.position() == 0 && mention.cursor.anchor() == 0) {
return true;
}
if (mention.cursor.position() - mention.cursor.anchor() != mention.text.size()) {
mention.cursor.setPosition(mention.start);
mention.cursor.setPosition(mention.cursor.anchor() + mention.text.size(), QTextCursor::KeepAnchor);
}
if (mention.cursor.selectedText() != mention.text) {
return true;
}
if (currentBlock() == mention.cursor.block()) {
mention.start = mention.cursor.anchor();
mention.position = mention.cursor.position();
setFormat(mention.cursor.selectionStart(), mention.cursor.selectedText().size(), m_mentionFormat);
}
return false;
}),
mentions->end());
}