- Make sure that when adding characters before/after a link that it doesn't take the link style

- Make sure that when double clicking a link with a space the whole text is selected
- Make sure that shift selection with arrows works
- Make sure that ctrl left right (word jump) moves across the whole link even if multiple words

autotests/actionstest.cpp

@@ -93,7 +93,6 @@ void ActionsTest::testActions()
     auto cache = new ChatBarCache(this);
     cache->cache() += Block::CacheItem{.type = MessageComponentType::Text, .content = QTextDocumentFragment::fromMarkdown(command)};
     auto result = ActionsModel::handleAction(room, cache);
-    qWarning() << result << resultText;
     QCOMPARE(resultText, std::get<std::optional<QString>>(result));
     QCOMPARE(type, std::get<std::optional<Quotient::RoomMessageEvent::MsgType>>(result));
 }

autotests/chatkeyhelpertesthelper.h

@@ -30,14 +30,14 @@ public:
 
     ChatTextItemHelper *textItem() const
     {
-        return m_keyHelper->textItem;
+        return m_keyHelper->textItem();
     }
     void setTextItem(ChatTextItemHelper *textItem)
     {
-        if (textItem == m_keyHelper->textItem) {
+        if (textItem == m_keyHelper->textItem()) {
             return;
         }
-        m_keyHelper->textItem = textItem;
+        m_keyHelper->setTextItem(textItem);
         Q_EMIT textItemChanged();
     }
 

src/libneochat/blockcache.h

@@ -11,13 +11,35 @@
 
 namespace Block
 {
+/**
+ * @struct CacheItem
+ *
+ * A structure to define an item stored in a Block::Cache.
+ *
+ * @sa Block::Cache
+ */
 struct CacheItem {
     MessageComponentType::Type type = MessageComponentType::Other;
     QTextDocumentFragment content;
 
+    /**
+     * @brief Return the contents of the CacheItem as a single string.
+     */
     QString toString() const;
 };
 
+/**
+ * @class Cache
+ *
+ * A class to cache the contents of a ChatBarMessageContentModel.
+ *
+ * We can't store the actual content items as the QTextDocuments are attached to
+ * text items that may be deleted by the QML engine. Instead we get the contents
+ * as a QTextDocumentFragment in a Block::CacheItem which can be used to reconstruct the
+ * model later.
+ *
+ * @sa ChatBarMessageContentModel, QTextDocumentFragment, QTextDocument, Block::CacheItem
+ */
 class Cache : private QList<CacheItem>
 {
 public:
@@ -26,8 +48,16 @@ public:
     using QList<CacheItem>::clear;
     using QList<CacheItem>::append, QList<CacheItem>::operator+=, QList<CacheItem>::operator<<;
 
+    /**
+     * @brief Fill the cache from a list of MessageComponents.
+     *
+     * @sa MessageComponent
+     */
     void fill(QList<MessageComponent> components);
 
+    /**
+     * @brief Return the contents of the Cache as a single string.
+     */
     QString toString() const;
 };
 }

src/libneochat/chatkeyhelper.cpp

@@ -7,12 +7,34 @@
 #include "clipboard.h"
 #include "neochatroom.h"
 #include "richformat.h"
+#include <qtextcursor.h>
 
 ChatKeyHelper::ChatKeyHelper(QObject *parent)
     : QObject(parent)
 {
 }
 
+ChatTextItemHelper *ChatKeyHelper::textItem() const
+{
+    return m_textItem;
+}
+
+void ChatKeyHelper::setTextItem(ChatTextItemHelper *textItem)
+{
+    if (textItem == m_textItem) {
+        return;
+    }
+
+    if (m_textItem) {
+        m_textItem->disconnect(this);
+    }
+    m_textItem = textItem;
+    if (m_textItem) {
+        connect(m_textItem, &ChatTextItemHelper::contentsChange, this, &ChatKeyHelper::checkLinkFormat);
+        connect(m_textItem, &ChatTextItemHelper::selectedTextChanged, this, &ChatKeyHelper::checkMouseSelection);
+    }
+}
+
 bool ChatKeyHelper::handleKey(Qt::Key key, Qt::KeyboardModifiers modifiers)
 {
     switch (key) {
@@ -23,9 +45,9 @@ bool ChatKeyHelper::handleKey(Qt::Key key, Qt::KeyboardModifiers modifiers)
     case Qt::Key_Down:
         return down();
     case Qt::Key_Left:
-        return left();
+        return left(modifiers);
     case Qt::Key_Right:
-        return right();
+        return right(modifiers);
     case Qt::Key_Tab:
         return tab();
     case Qt::Key_Delete:
@@ -45,10 +67,6 @@ bool ChatKeyHelper::handleKey(Qt::Key key, Qt::KeyboardModifiers modifiers)
 
 bool ChatKeyHelper::vKey(Qt::KeyboardModifiers modifiers)
 {
-    if (!textItem) {
-        return false;
-    }
-
     if (modifiers.testFlag(Qt::ControlModifier)) {
         return pasteImage();
     }
@@ -57,12 +75,12 @@ bool ChatKeyHelper::vKey(Qt::KeyboardModifiers modifiers)
 
 bool ChatKeyHelper::up(Qt::KeyboardModifiers modifiers)
 {
-    if (!textItem) {
+    if (!m_textItem) {
         return false;
     }
 
     if (modifiers.testFlag(Qt::ControlModifier)) {
-        const auto room = textItem->room();
+        const auto room = m_textItem->room();
         if (!room) {
             return false;
         }
@@ -70,12 +88,12 @@ bool ChatKeyHelper::up(Qt::KeyboardModifiers modifiers)
         return true;
     }
 
-    if (textItem->isCompleting) {
+    if (m_textItem->isCompleting) {
         Q_EMIT unhandledUp(true);
         return true;
     }
 
-    QTextCursor cursor = textItem->textCursor();
+    QTextCursor cursor = m_textItem->textCursor();
     if (cursor.isNull()) {
         return false;
     }
@@ -88,15 +106,15 @@ bool ChatKeyHelper::up(Qt::KeyboardModifiers modifiers)
 
 bool ChatKeyHelper::down()
 {
-    if (!textItem) {
+    if (!m_textItem) {
         return false;
     }
-    if (textItem->isCompleting) {
+    if (m_textItem->isCompleting) {
         Q_EMIT unhandledDown(true);
         return true;
     }
 
-    QTextCursor cursor = textItem->textCursor();
+    QTextCursor cursor = m_textItem->textCursor();
     if (cursor.isNull()) {
         return false;
     }
@@ -108,46 +126,54 @@ bool ChatKeyHelper::down()
     return false;
 }
 
-bool ChatKeyHelper::left()
+bool ChatKeyHelper::left(Qt::KeyboardModifiers modifiers)
 {
-    if (!textItem) {
+    if (!m_textItem) {
         return false;
     }
-    QTextCursor cursor = textItem->textCursor();
+    QTextCursor cursor = m_textItem->textCursor();
     if (cursor.isNull()) {
         return false;
     }
-    return selectLink(cursor, true);
+    bool ctrlLeft = nextWordLeft(cursor, modifiers);
+    if (ctrlLeft) {
+        return true;
+    }
+    return selectLeft(cursor, modifiers);
 }
 
-bool ChatKeyHelper::right()
+bool ChatKeyHelper::right(Qt::KeyboardModifiers modifiers)
 {
-    if (!textItem) {
+    if (!m_textItem) {
         return false;
     }
-    QTextCursor cursor = textItem->textCursor();
+    QTextCursor cursor = m_textItem->textCursor();
     if (cursor.isNull()) {
         return false;
     }
-    return selectLink(cursor, false);
+    bool ctrlRight = nextWordRight(cursor, modifiers);
+    if (ctrlRight) {
+        return true;
+    }
+    return selectRight(cursor, modifiers);
 }
 
 bool ChatKeyHelper::tab()
 {
-    if (!textItem) {
+    if (!m_textItem) {
         return false;
     }
-    if (textItem->isCompleting) {
+    if (m_textItem->isCompleting) {
         Q_EMIT unhandledTab(true);
         return true;
     }
 
-    QTextCursor cursor = textItem->textCursor();
+    QTextCursor cursor = m_textItem->textCursor();
     if (cursor.isNull()) {
         return false;
     }
-    if (cursor.currentList() && textItem->canIndentListMoreAtCursor()) {
+    if (cursor.currentList() && m_textItem->canIndentListMoreAtCursor()) {
-        textItem->indentListMoreAtCursor();
+        m_textItem->indentListMoreAtCursor();
         return true;
     }
     return false;
@@ -155,45 +181,45 @@ bool ChatKeyHelper::tab()
 
 bool ChatKeyHelper::deleteChar()
 {
-    if (!textItem) {
+    if (!m_textItem) {
         return false;
     }
 
-    QTextCursor cursor = textItem->textCursor();
+    QTextCursor cursor = m_textItem->textCursor();
     if (cursor.isNull() || cursor.hasSelection()) {
         return false;
     }
-    if (cursor.position() >= textItem->document()->characterCount() - textItem->fixedEndChars().length() - 1) {
+    if (cursor.position() >= m_textItem->document()->characterCount() - m_textItem->fixedEndChars().length() - 1) {
         Q_EMIT unhandledDelete();
         return true;
     }
-    return selectLink(cursor, false);
+    return selectRight(cursor);
 }
 
 bool ChatKeyHelper::backspace()
 {
-    if (!textItem) {
+    if (!m_textItem) {
         return false;
     }
 
-    QTextCursor cursor = textItem->textCursor();
+    QTextCursor cursor = m_textItem->textCursor();
     if (cursor.isNull()) {
         return false;
     }
-    if (cursor.position() <= textItem->fixedStartChars().length()) {
+    if (cursor.position() <= m_textItem->fixedStartChars().length()) {
-        if (cursor.currentList() && textItem->canIndentListLessAtCursor()) {
+        if (cursor.currentList() && m_textItem->canIndentListLessAtCursor()) {
-            textItem->indentListLessAtCursor();
+            m_textItem->indentListLessAtCursor();
             return true;
         }
         Q_EMIT unhandledBackspace();
         return true;
     }
-    return selectLink(cursor, true);
+    return selectLeft(cursor);
 }
 
 bool ChatKeyHelper::insertReturn(Qt::KeyboardModifiers modifiers)
 {
-    if (!textItem) {
+    if (!m_textItem) {
         return false;
     }
 
@@ -203,7 +229,7 @@ bool ChatKeyHelper::insertReturn(Qt::KeyboardModifiers modifiers)
         return true;
     }
 
-    if (!shiftPressed && textItem->isCompleting) {
+    if (!shiftPressed && m_textItem->isCompleting) {
         Q_EMIT unhandledReturn(true);
         return true;
     }
@@ -213,7 +239,7 @@ bool ChatKeyHelper::insertReturn(Qt::KeyboardModifiers modifiers)
         return true;
     }
 
-    QTextCursor cursor = textItem->textCursor();
+    QTextCursor cursor = m_textItem->textCursor();
     if (cursor.isNull()) {
         return false;
     }
@@ -233,10 +259,10 @@ bool ChatKeyHelper::insertReturn(Qt::KeyboardModifiers modifiers)
 
 bool ChatKeyHelper::cancel()
 {
-    if (!textItem) {
+    if (!m_textItem) {
         return false;
     }
-    if (textItem->isCompleting) {
+    if (m_textItem->isCompleting) {
         Q_EMIT closeCompletion();
         return true;
     }
@@ -245,7 +271,7 @@ bool ChatKeyHelper::cancel()
 
 bool ChatKeyHelper::pasteImage()
 {
-    if (!textItem) {
+    if (!m_textItem) {
         return false;
     }
     const auto savePath = Clipboard().saveImage();
@@ -255,50 +281,47 @@ bool ChatKeyHelper::pasteImage()
     return false;
 }
 
-bool ChatKeyHelper::selectLink(QTextCursor &cursor, bool back)
+bool ChatKeyHelper::selectLeft(QTextCursor &cursor, Qt::KeyboardModifiers modifiers)
 {
-    if (cursor.hasSelection() || (!cursor.charFormat().isAnchor() && back) || (!back && cursor.atBlockEnd())) {
+    if ((cursor.hasSelection() || !cursor.charFormat().isAnchor()) && !modifiers.testFlag(Qt::ShiftModifier)) {
         return false;
     }
 
-    // If we are on the very right and going right we need to exit.
+    // We need to rearrange the selection from right to left.
-    if (!back) {
+    const auto selectionStart = cursor.selectionStart();
-        const auto startPos = cursor.position();
+    cursor.setPosition(cursor.selectionEnd());
-        cursor.movePosition(QTextCursor::NextCharacter);
+    cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor, cursor.position() - selectionStart);
-        if (cursor.charFormat().isAnchor()) {
-            cursor.setPosition(startPos);
-        } else {
-            return false;
-        }
-    }
 
-    // Figure out if we're on the left side of a link.
+    if (!cursor.charFormat().isAnchor()) {
-    // note a cusor on the leftmost of a link will not have the anchor set in char format.
+        cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor);
-    bool onLeft = false;
+        m_textItem->setSelection(cursor.selectionEnd(), cursor.selectionStart());
-    if (!cursor.charFormat().isAnchor() && !back) {
+        return true;
-        cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
-        if (cursor.charFormat().isAnchor()) {
-            onLeft = true;
-        } else {
-            return false;
-        }
     }
 
     const auto hRef = cursor.charFormat().anchorHref();
     auto currentCharFormat = cursor.charFormat();
-
+    while (currentCharFormat.isAnchor() && currentCharFormat.anchorHref() == hRef && cursor.position() > 0) {
-    // If not on the left figure out where it is.
+        cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor);
-    if (!onLeft) {
+        currentCharFormat = cursor.charFormat();
-        const auto startPos = cursor.position();
-        while (currentCharFormat.isAnchor() && currentCharFormat.anchorHref() == hRef && cursor.position() > 0) {
-            cursor.movePosition(QTextCursor::PreviousCharacter);
-            currentCharFormat = cursor.charFormat();
-        }
-        cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, startPos - cursor.position());
     }
-    // Then select everything to right.
+
-    // We do it this way so it works when you start in the middle.
+    m_textItem->setSelection(cursor.selectionEnd(), cursor.selectionStart());
-    currentCharFormat = cursor.charFormat();
+    return true;
+}
+
+bool ChatKeyHelper::selectRight(QTextCursor &cursor, Qt::KeyboardModifiers modifiers)
+{
+    if ((cursor.hasSelection() && !modifiers.testFlag(Qt::ShiftModifier)) || cursor.atBlockEnd()) {
+        return false;
+    }
+
+    cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
+    if (!cursor.charFormat().isAnchor()) {
+        return false;
+    }
+
+    const auto hRef = cursor.charFormat().anchorHref();
+    auto currentCharFormat = cursor.charFormat();
     while (currentCharFormat.isAnchor() && currentCharFormat.anchorHref() == hRef && cursor.position() < cursor.block().length() - 1) {
         cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
         currentCharFormat = cursor.charFormat();
@@ -307,8 +330,133 @@ bool ChatKeyHelper::selectLink(QTextCursor &cursor, bool back)
         cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor);
     }
 
-    textItem->setSelection(cursor);
+    m_textItem->setSelection(cursor.selectionStart(), cursor.selectionEnd());
     return true;
 }
 
+bool ChatKeyHelper::nextWordLeft(QTextCursor &cursor, Qt::KeyboardModifiers modifiers)
+{
+    if (!modifiers.testFlag(Qt::ControlModifier)) {
+        return false;
+    }
+
+    cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor);
+    // Cross any whitespace.
+    while (cursor.selectedText() == u' ') {
+        cursor.setPosition(cursor.selectionStart());
+        cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor);
+    }
+    if (!cursor.charFormat().isAnchor()) {
+        return false;
+    }
+    // Cross link.
+    while (cursor.charFormat().isAnchor()) {
+        cursor.setPosition(cursor.selectionStart());
+        cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor);
+    }
+
+    m_textItem->setCursorPosition(cursor.selectionStart());
+    return true;
+}
+
+bool ChatKeyHelper::nextWordRight(QTextCursor &cursor, Qt::KeyboardModifiers modifiers)
+{
+    if (!modifiers.testFlag(Qt::ControlModifier)) {
+        return false;
+    }
+
+    cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
+    // Cross any whitespace.
+    while (cursor.selectedText() == u' ') {
+        cursor.setPosition(cursor.selectionEnd());
+        cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
+    }
+    if (!cursor.charFormat().isAnchor()) {
+        return false;
+    }
+    // Cross link.
+    while (cursor.charFormat().isAnchor()) {
+        cursor.setPosition(cursor.selectionEnd());
+        cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
+    }
+    m_textItem->setCursorPosition(cursor.selectionEnd());
+    return true;
+}
+
+void ChatKeyHelper::checkMouseSelection()
+{
+    if (!m_textItem) {
+        return;
+    }
+    QTextCursor cursor = m_textItem->textCursor();
+    if (cursor.isNull()) {
+        return;
+    }
+    if (!cursor.hasSelection()) {
+        return;
+    }
+    bool selectingLink = false;
+    cursor.beginEditBlock();
+    cursor.setPosition(m_textItem->selectionStart());
+    if (cursor.charFormat().isAnchor()) {
+        selectingLink = true;
+    }
+    if (!selectingLink) {
+        cursor.movePosition(QTextCursor::NextCharacter);
+        if (cursor.charFormat().isAnchor()) {
+            selectingLink = true;
+        }
+    }
+    if (!selectingLink) {
+        cursor.setPosition(m_textItem->selectionEnd());
+        if (cursor.charFormat().isAnchor()) {
+            selectingLink = true;
+        }
+    }
+    if (!selectingLink) {
+        return;
+    }
+    // Wind all the way to the left of the link.
+    cursor.setPosition(m_textItem->selectionStart());
+    const auto hRef = cursor.charFormat().anchorHref();
+    auto currentCharFormat = cursor.charFormat();
+    while (currentCharFormat.isAnchor() && currentCharFormat.anchorHref() == hRef && cursor.position() > 0) {
+        cursor.movePosition(QTextCursor::PreviousCharacter);
+        currentCharFormat = cursor.charFormat();
+    }
+    cursor.endEditBlock();
+    selectRight(cursor);
+}
+
+void ChatKeyHelper::checkLinkFormat(int position, int charsRemoved, int charsAdded)
+{
+    if (!m_textItem || charsRemoved > charsAdded || charsAdded - charsRemoved != 1) {
+        return;
+    }
+    QTextCursor cursor = m_textItem->textCursor();
+    if (cursor.isNull()) {
+        return;
+    }
+
+    bool nextToLink = false;
+    cursor.setPosition(position);
+    if (cursor.charFormat().isAnchor()) {
+        nextToLink = true;
+    }
+    // Note 2 because a cursor on the left of a link will not show it in the format.
+    cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::MoveAnchor, 2);
+    if (cursor.charFormat().isAnchor()) {
+        nextToLink = true;
+    }
+    if (!nextToLink) {
+        return;
+    }
+
+    cursor.beginEditBlock();
+    cursor.setPosition(position);
+    cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
+    cursor.setCharFormat({});
+    cursor.endEditBlock();
+}
+
 #include "moc_chatkeyhelper.cpp"

src/libneochat/chatkeyhelper.h

@@ -32,7 +32,14 @@ public:
      *
      * @sa ChatTextItemHelper
      */
-    QPointer<ChatTextItemHelper> textItem;
+    ChatTextItemHelper *textItem() const;
+
+    /**
+     * @brief Set the ChatTextItemHelper that ChatKeyHelper is handling key presses for.
+     *
+     * @sa ChatTextItemHelper
+     */
+    void setTextItem(ChatTextItemHelper *textItem);
 
     /**
      * @brief handle the given key and modifiers.
@@ -115,15 +122,17 @@ Q_SIGNALS:
     void imagePasted(const QString &filePath);
 
 private:
+    QPointer<ChatTextItemHelper> m_textItem;
+
     bool vKey(Qt::KeyboardModifiers modifiers);
 
     bool up(Qt::KeyboardModifiers modifiers);
 
     bool down();
 
-    bool left();
+    bool left(Qt::KeyboardModifiers modifiers);
 
-    bool right();
+    bool right(Qt::KeyboardModifiers modifiers);
 
     bool tab();
 
@@ -137,5 +146,15 @@ private:
 
     bool pasteImage();
 
-    bool selectLink(QTextCursor &cursor, bool back);
+    bool selectLeft(QTextCursor &cursor, Qt::KeyboardModifiers modifiers = Qt::NoModifier);
+
+    bool selectRight(QTextCursor &cursor, Qt::KeyboardModifiers modifiers = Qt::NoModifier);
+
+    bool nextWordLeft(QTextCursor &cursor, Qt::KeyboardModifiers modifiers = Qt::NoModifier);
+
+    bool nextWordRight(QTextCursor &cursor, Qt::KeyboardModifiers modifiers = Qt::NoModifier);
+
+    void checkMouseSelection();
+
+    void checkLinkFormat(int position, int charsRemoved, int charsAdded);
 };

src/libneochat/chattextitemhelper.cpp

@@ -82,6 +82,7 @@ void ChatTextItemHelper::setTextItem(QQuickItem *textItem)
 
     if (m_textItem) {
         connect(m_textItem, SIGNAL(cursorPositionChanged()), this, SLOT(itemCursorPositionChanged()));
+        connect(m_textItem, SIGNAL(selectedTextChanged()), this, SLOT(itemSelectedTextChanged()));
         connect(m_textItem, SIGNAL(textFormatChanged(QQuickTextEdit::TextFormat)), this, SLOT(itemTextFormatChanged()));
         if (const auto doc = document()) {
             connect(doc, &QTextDocument::contentsChanged, this, &ChatTextItemHelper::contentsChanged);
@@ -387,12 +388,13 @@ void ChatTextItemHelper::setCursorPosition(int pos)
     m_textItem->setProperty("cursorPosition", pos);
 }
 
-void ChatTextItemHelper::setSelection(const QTextCursor &cursor)
+void ChatTextItemHelper::setSelection(int selectionStart, int selectionEnd)
 {
     if (!m_textItem) {
         return;
     }
-    metaObject()->invokeMethod(m_textItem, "select", Qt::DirectConnection, cursor.selectionStart(), cursor.selectionEnd());
+    m_selectionJustChanged = true;
+    metaObject()->invokeMethod(m_textItem, "select", Qt::DirectConnection, selectionStart, selectionEnd);
 }
 
 void ChatTextItemHelper::setCursorVisible(bool visible)
@@ -448,6 +450,15 @@ void ChatTextItemHelper::itemCursorPositionChanged()
     Q_EMIT listChanged();
 }
 
+void ChatTextItemHelper::itemSelectedTextChanged()
+{
+    if (m_selectionJustChanged) {
+        m_selectionJustChanged = false;
+        return;
+    }
+    Q_EMIT selectedTextChanged();
+}
+
 void ChatTextItemHelper::mergeFormatOnCursor(RichFormat::Format format, QTextCursor cursor)
 {
     if (cursor.isNull()) {

src/libneochat/chattextitemhelper.h

@@ -182,6 +182,16 @@ public:
      */
     QRect cursorRectangle() const;
 
+    /**
+     * @brief The start position of any text selection in the underlying text item.
+     */
+    int selectionStart() const;
+
+    /**
+     * @brief The end position of any text selection in the underlying text item.
+     */
+    int selectionEnd() const;
+
     /**
      * @brief Set the cursor position of the underlying text item to the given value.
      */
@@ -190,7 +200,7 @@ public:
     /**
      * @brief Set the selection of the underlying text item to the given cursor.
      */
-    void setSelection(const QTextCursor &cursor);
+    void setSelection(int selectionStart, int selectionEnd);
 
     /**
      * @brief Set the cursor visibility of the underlying text item to the given value.
@@ -312,11 +322,17 @@ Q_SIGNALS:
      */
     void cursorPositionChanged(bool fromContentsChange);
 
+    /**
+     * @brief Emitted when the selected text of the underlying text item is changed.
+     */
+    void selectedTextChanged();
+
 private:
     QPointer<QQuickItem> m_textItem;
     QPointer<ChatBarSyntaxHighlighter> m_highlighter;
 
     bool m_contentsJustChanged = false;
+    bool m_selectionJustChanged = false;
 
     QString m_fixedStartChars = {};
     QString m_fixedEndChars = {};
@@ -326,9 +342,6 @@ private:
 
     std::optional<int> lineLength(int lineNumber) const;
 
-    int selectionStart() const;
-    int selectionEnd() const;
-
     void mergeTextFormatOnCursor(RichFormat::Format format, QTextCursor cursor);
     void mergeStyleFormatOnCursor(RichFormat::Format format, QTextCursor cursor);
     void mergeListFormatOnCursor(RichFormat::Format format, const QTextCursor &cursor);
@@ -339,4 +352,5 @@ private:
 private Q_SLOTS:
     void itemTextFormatChanged();
     void itemCursorPositionChanged();
+    void itemSelectedTextChanged();
 };

src/messagecontent/models/chatbarmessagecontentmodel.cpp

@@ -38,7 +38,7 @@ ChatBarMessageContentModel::ChatBarMessageContentModel(QObject *parent)
     });
     connect(this, &ChatBarMessageContentModel::focusRowChanged, this, [this]() {
         m_markdownHelper->setTextItem(focusedTextItem());
-        m_keyHelper->textItem = focusedTextItem();
+        m_keyHelper->setTextItem(focusedTextItem());
     });
     connect(this, &ChatBarMessageContentModel::roomChanged, this, [this]() {
         for (const auto &component : m_components) {