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Add automatic markdown formatting

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This commit is contained in:
James Graham
2025-11-06 20:46:51 +00:00
parent 11bf741554
commit 4db1e1c437
16 changed files with 801 additions and 313 deletions
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269
src/libneochat/chatdocumenthandler.cpp
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@@ -21,6 +21,7 @@
#include <Sonnet/BackgroundChecker>
#include <Sonnet/Settings>
#include <qfont.h>
#include <qlogging.h>
#include <qnamespace.h>
#include <qtextcursor.h>
@@ -28,8 +29,8 @@
#include "chatbartype.h"
#include "chatdocumenthandler_logging.h"
#include "chatmarkdownhelper.h"
#include "eventhandler.h"
#include "textstyle.h"
using namespace Qt::StringLiterals;
@@ -130,6 +131,8 @@ ChatDocumentHandler::ChatDocumentHandler(QObject *parent)
, m_highlighter(new SyntaxHighlighter(this))
, m_completionModel(new CompletionModel(this))
{
m_markdownHelper = new ChatMarkdownHelper(this);
connect(this, &ChatDocumentHandler::formatChanged, m_markdownHelper, &ChatMarkdownHelper::handleExternalFormatChange);
}
int ChatDocumentHandler::completionStartIndex() const
@@ -162,6 +165,22 @@ void ChatDocumentHandler::setType(ChatBarType::Type type)
Q_EMIT typeChanged();
}
NeoChatRoom *ChatDocumentHandler::room() const
{
return m_room;
}
void ChatDocumentHandler::setRoom(NeoChatRoom *room)
{
if (m_room == room) {
return;
}
m_room = room;
m_completionModel->setRoom(m_room);
Q_EMIT roomChanged();
}
QQuickItem *ChatDocumentHandler::textItem() const
{
return m_textItem;
@@ -187,9 +206,17 @@ void ChatDocumentHandler::setTextItem(QQuickItem *textItem)
connect(m_textItem, SIGNAL(cursorPositionChanged()), this, SLOT(updateCursor()));
if (document()) {
connect(document(), &QTextDocument::contentsChanged, this, &ChatDocumentHandler::contentsChanged);
connect(document(), &QTextDocument::contentsChanged, this, [this]() {
if (m_room) {
updateCursor();
connect(document(), &QTextDocument::contentsChanged, this, &ChatDocumentHandler::updateCursor);
connect(document(), &QTextDocument::contentsChange, this, [this](int position) {
auto cursor = textCursor();
if (cursor.isNull()) {
return;
}
cursor.setPosition(position);
cursor.select(QTextCursor::WordUnderCursor);
if (!cursor.selectedText().isEmpty()) {
cursor.mergeCharFormat(m_pendingFormat);
m_pendingFormat = {};
}
});
initializeChars();
@@ -308,7 +335,6 @@ void ChatDocumentHandler::updateCursor()
int start = completionStartIndex();
m_completionModel->setText(getText().mid(start, cursorPosition() - start), getText().mid(start));
Q_EMIT formatChanged();
Q_EMIT atFirstLineChanged();
Q_EMIT atLastLineChanged();
}
@@ -329,20 +355,20 @@ int ChatDocumentHandler::selectionEnd() const
return m_textItem->property("selectionEnd").toInt();
}
NeoChatRoom *ChatDocumentHandler::room() const
QTextCursor ChatDocumentHandler::textCursor() const
{
return m_room;
}
void ChatDocumentHandler::setRoom(NeoChatRoom *room)
{
if (m_room == room) {
return;
if (!document()) {
return QTextCursor();
}
m_room = room;
m_completionModel->setRoom(m_room);
Q_EMIT roomChanged();
QTextCursor cursor = QTextCursor(document());
if (selectionStart() != selectionEnd()) {
cursor.setPosition(selectionStart());
cursor.setPosition(selectionEnd(), QTextCursor::KeepAnchor);
} else {
cursor.setPosition(cursorPosition());
}
return cursor;
}
bool ChatDocumentHandler::isEmpty() const
@@ -647,35 +673,6 @@ void ChatDocumentHandler::updateMentions(const QString &editId)
}
}
void ChatDocumentHandler::setFontSize(int size)
{
if (size <= 0)
return;
QTextCursor cursor = textCursor();
if (cursor.isNull())
return;
if (!cursor.hasSelection())
cursor.select(QTextCursor::WordUnderCursor);
if (cursor.charFormat().property(QTextFormat::FontPointSize).toInt() == size)
return;
QTextCharFormat format;
format.setFontPointSize(size);
mergeFormatOnWordOrSelection(format);
Q_EMIT fontSizeChanged();
}
void ChatDocumentHandler::setStrikethrough(bool strikethrough)
{
QTextCharFormat format;
format.setFontStrikeOut(strikethrough);
mergeFormatOnWordOrSelection(format);
Q_EMIT formatChanged();
}
void ChatDocumentHandler::setTextColor(const QColor &color)
{
QTextCharFormat format;
@@ -684,23 +681,6 @@ void ChatDocumentHandler::setTextColor(const QColor &color)
Q_EMIT textColorChanged();
}
Qt::Alignment ChatDocumentHandler::alignment() const
{
QTextCursor cursor = textCursor();
if (cursor.isNull())
return Qt::AlignLeft;
return textCursor().blockFormat().alignment();
}
void ChatDocumentHandler::setAlignment(Qt::Alignment alignment)
{
QTextBlockFormat format;
format.setAlignment(alignment);
QTextCursor cursor = textCursor();
cursor.mergeBlockFormat(format);
Q_EMIT alignmentChanged();
}
bool ChatDocumentHandler::bold() const
{
QTextCursor cursor = textCursor();
@@ -710,14 +690,6 @@ bool ChatDocumentHandler::bold() const
return textCursor().charFormat().fontWeight() == QFont::Bold;
}
void ChatDocumentHandler::setBold(bool bold)
{
QTextCharFormat format;
format.setFontWeight(bold ? QFont::Bold : QFont::Normal);
mergeFormatOnWordOrSelection(format);
Q_EMIT formatChanged();
}
bool ChatDocumentHandler::italic() const
{
QTextCursor cursor = textCursor();
@@ -726,14 +698,6 @@ bool ChatDocumentHandler::italic() const
return textCursor().charFormat().fontItalic();
}
void ChatDocumentHandler::setItalic(bool italic)
{
QTextCharFormat format;
format.setFontItalic(italic);
mergeFormatOnWordOrSelection(format);
Q_EMIT formatChanged();
}
bool ChatDocumentHandler::underline() const
{
QTextCursor cursor = textCursor();
@@ -742,14 +706,6 @@ bool ChatDocumentHandler::underline() const
return textCursor().charFormat().fontUnderline();
}
void ChatDocumentHandler::setUnderline(bool underline)
{
QTextCharFormat format;
format.setFontUnderline(underline);
mergeFormatOnWordOrSelection(format);
Q_EMIT formatChanged();
}
bool ChatDocumentHandler::strikethrough() const
{
QTextCursor cursor = textCursor();
@@ -758,23 +714,6 @@ bool ChatDocumentHandler::strikethrough() const
return textCursor().charFormat().fontStrikeOut();
}
QString ChatDocumentHandler::fontFamily() const
{
QTextCursor cursor = textCursor();
if (cursor.isNull())
return QString();
QTextCharFormat format = cursor.charFormat();
return format.font().family();
}
void ChatDocumentHandler::setFontFamily(const QString &family)
{
QTextCharFormat format;
format.setFontFamilies({family});
mergeFormatOnWordOrSelection(format);
Q_EMIT fontFamilyChanged();
}
QColor ChatDocumentHandler::textColor() const
{
QTextCursor cursor = textCursor();
@@ -784,22 +723,6 @@ QColor ChatDocumentHandler::textColor() const
return format.foreground().color();
}
QTextCursor ChatDocumentHandler::textCursor() const
{
if (!document()) {
return QTextCursor();
}
QTextCursor cursor = QTextCursor(document());
if (selectionStart() != selectionEnd()) {
cursor.setPosition(selectionStart());
cursor.setPosition(selectionEnd(), QTextCursor::KeepAnchor);
} else {
cursor.setPosition(cursorPosition());
}
return cursor;
}
std::optional<Qt::TextFormat> ChatDocumentHandler::textFormat() const
{
if (!m_textItem) {
@@ -812,9 +735,14 @@ std::optional<Qt::TextFormat> ChatDocumentHandler::textFormat() const
void ChatDocumentHandler::mergeFormatOnWordOrSelection(const QTextCharFormat &format)
{
QTextCursor cursor = textCursor();
if (!cursor.hasSelection())
if (!cursor.hasSelection()) {
cursor.select(QTextCursor::WordUnderCursor);
cursor.mergeCharFormat(format);
}
if (cursor.hasSelection()) {
cursor.mergeCharFormat(format);
} else {
m_pendingFormat = format.toCharFormat();
}
}
QString ChatDocumentHandler::currentLinkText() const
@@ -993,19 +921,38 @@ void ChatDocumentHandler::regenerateColorScheme()
// TODO update existing link
}
void ChatDocumentHandler::setFormat(RichFormat::Format format)
{
switch (RichFormat::typeForFormat(format)) {
case RichFormat::Text:
setTextFormat(format);
return;
case RichFormat::List:
setListFormat(format);
return;
case RichFormat::Style:
setStyleFormat(format);
return;
default:
return;
}
}
void ChatDocumentHandler::indentListMore()
{
m_nestedListHelper.handleOnIndentMore(textCursor());
Q_EMIT currentListStyleChanged();
}
void ChatDocumentHandler::indentListLess()
{
m_nestedListHelper.handleOnIndentLess(textCursor());
Q_EMIT currentListStyleChanged();
}
void ChatDocumentHandler::setListStyle(int styleIndex)
void ChatDocumentHandler::setListFormat(RichFormat::Format format)
{
m_nestedListHelper.handleOnBulletType(-styleIndex, textCursor());
m_nestedListHelper.handleOnBulletType(RichFormat::listStyleForFormat(format), textCursor());
Q_EMIT currentListStyleChanged();
}
@@ -1028,28 +975,38 @@ int ChatDocumentHandler::currentListStyle() const
return -textCursor().currentList()->format().style();
}
TextStyle::Style ChatDocumentHandler::style() const
void ChatDocumentHandler::setTextFormat(RichFormat::Format format)
{
return static_cast<TextStyle::Style>(textCursor().blockFormat().headingLevel());
if (RichFormat::typeForFormat(format) != RichFormat::Text) {
return;
}
mergeFormatOnWordOrSelection(RichFormat::charFormatForFormat(format, RichFormat::hasFormat(textCursor(), format)));
Q_EMIT formatChanged();
}
void ChatDocumentHandler::setStyle(TextStyle::Style style)
RichFormat::Format ChatDocumentHandler::style() const
{
const int headingLevel = style <= 6 ? style : 0;
// Apparently, 5 is maximum for FontSizeAdjustment; otherwise level=1 and
// level=2 look the same
const int sizeAdjustment = headingLevel > 0 ? 5 - headingLevel : 0;
return static_cast<RichFormat::Format>(textCursor().blockFormat().headingLevel());
}
void ChatDocumentHandler::setStyleFormat(RichFormat::Format format)
{
// Paragraph is special because it is normally a Block format but if we're already
// in a Paragraph it clears any existing style.
if (!(RichFormat::typeForFormat(format) == RichFormat::Style || format == RichFormat::Paragraph)) {
return;
}
qWarning() << format;
QTextCursor cursor = textCursor();
if (cursor.isNull()) {
return;
}
cursor.beginEditBlock();
QTextBlockFormat blkfmt;
blkfmt.setHeadingLevel(headingLevel);
cursor.mergeBlockFormat(blkfmt);
cursor.mergeBlockFormat(RichFormat::blockFormatForFormat(format));
QTextCharFormat chrfmt;
chrfmt.setFontWeight(headingLevel > 0 ? QFont::Bold : QFont::Normal);
chrfmt.setProperty(QTextFormat::FontSizeAdjustment, sizeAdjustment);
// Applying style to the current line or selection
QTextCursor selectCursor = cursor;
if (selectCursor.hasSelection()) {
@@ -1066,23 +1023,16 @@ void ChatDocumentHandler::setStyle(TextStyle::Style style)
} else {
selectCursor.select(QTextCursor::BlockUnderCursor);
}
selectCursor.mergeCharFormat(chrfmt);
const auto chrfmt = RichFormat::charFormatForFormat(format);
selectCursor.mergeCharFormat(chrfmt);
cursor.mergeBlockCharFormat(chrfmt);
cursor.endEditBlock();
Q_EMIT formatChanged();
Q_EMIT styleChanged();
}
int ChatDocumentHandler::fontSize() const
{
QTextCursor cursor = textCursor();
if (cursor.isNull())
return 0;
QTextCharFormat format = cursor.charFormat();
return format.font().pointSize();
}
QString ChatDocumentHandler::fileName() const
{
const QString filePath = QQmlFile::urlToLocalFileOrQrc(m_fileUrl);
@@ -1102,6 +1052,19 @@ QUrl ChatDocumentHandler::fileUrl() const
return m_fileUrl;
}
void ChatDocumentHandler::tab()
{
QTextCursor cursor = textCursor();
if (cursor.isNull()) {
return;
}
if (cursor.currentList()) {
indentListMore();
return;
}
insertText(u" "_s);
}
void ChatDocumentHandler::deleteChar()
{
QTextCursor cursor = textCursor();
@@ -1124,6 +1087,11 @@ void ChatDocumentHandler::backspace()
return;
}
if (cursor.position() <= m_fixedStartChars.length()) {
qWarning() << "unhandled backspace";
if (cursor.currentList()) {
indentListLess();
return;
}
if (const auto previousHandler = previousDocumentHandler()) {
previousHandler->insertFragment(takeFirstBlock(), End, true);
} else {
@@ -1134,6 +1102,15 @@ void ChatDocumentHandler::backspace()
cursor.deletePreviousChar();
}
void ChatDocumentHandler::insertReturn()
{
QTextCursor cursor = textCursor();
if (cursor.isNull()) {
return;
}
cursor.insertBlock();
}
void ChatDocumentHandler::insertText(const QString &text)
{
textCursor().insertText(text);