File indexing completed on 2024-05-12 05:47:30

 /*
  * SPDX-FileCopyrightText: 2012 Peter Penz <peter.penz19@gmail.com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #include "kitemlistroleeditor.h"
 
 #include <KIO/Global>
 
 KItemListRoleEditor::KItemListRoleEditor(QWidget *parent)
     : KTextEdit(parent)
     , m_role()
     , m_blockFinishedSignal(false)
 {
     setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
     setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
     setAcceptRichText(false);
     enableFindReplace(false);
     document()->setDocumentMargin(0);
     setCheckSpellingEnabled(false);
 
     if (parent) {
         parent->installEventFilter(this);
     }
 
     connect(this, &KItemListRoleEditor::textChanged, this, &KItemListRoleEditor::autoAdjustSize);
 }
 
 KItemListRoleEditor::~KItemListRoleEditor()
 {
 }
 
 void KItemListRoleEditor::setRole(const QByteArray &role)
 {
     m_role = role;
 }
 
 QByteArray KItemListRoleEditor::role() const
 {
     return m_role;
 }
 
 void KItemListRoleEditor::setAllowUpDownKeyChainEdit(bool allowChainEdit)
 {
     m_allowUpDownKeyChainEdit = allowChainEdit;
 }
 
 bool KItemListRoleEditor::eventFilter(QObject *watched, QEvent *event)
 {
     if (watched == parentWidget() && event->type() == QEvent::Resize) {
         emitRoleEditingFinished();
     }
 
     return KTextEdit::eventFilter(watched, event);
 }
 
 bool KItemListRoleEditor::event(QEvent *event)
 {
     if (event->type() == QEvent::FocusOut) {
         QFocusEvent *focusEvent = static_cast<QFocusEvent *>(event);
         if (focusEvent->reason() != Qt::PopupFocusReason) {
             emitRoleEditingFinished();
         }
     }
     return KTextEdit::event(event);
 }
 
 void KItemListRoleEditor::keyPressEvent(QKeyEvent *event)
 {
     switch (event->key()) {
     case Qt::Key_Escape:
         // Emitting the signal roleEditingCanceled might result
         // in losing the focus. Per default losing the focus emits
         // a roleEditingFinished signal (see KItemListRoleEditor::event),
         // which is not wanted in this case.
         m_blockFinishedSignal = true;
         Q_EMIT roleEditingCanceled(m_role, KIO::encodeFileName(toPlainText()));
         m_blockFinishedSignal = false;
         event->accept();
         return;
     case Qt::Key_Enter:
     case Qt::Key_Return:
         emitRoleEditingFinished();
         event->accept();
         return;
     case Qt::Key_Tab:
     case Qt::Key_Down:
         if (m_allowUpDownKeyChainEdit || event->key() == Qt::Key_Tab) {
             emitRoleEditingFinished(EditNext);
             event->accept();
             return;
         }
         break;
     case Qt::Key_Backtab:
     case Qt::Key_Up:
         if (m_allowUpDownKeyChainEdit || event->key() == Qt::Key_Backtab) {
             emitRoleEditingFinished(EditPrevious);
             event->accept();
             return;
         }
         break;
     case Qt::Key_Left:
     case Qt::Key_Right: {
         QTextCursor cursor = textCursor();
         if (event->modifiers() == Qt::NoModifier && cursor.hasSelection()) {
             if (event->key() == Qt::Key_Left) {
                 cursor.setPosition(cursor.selectionStart());
             } else {
                 cursor.setPosition(cursor.selectionEnd());
             }
             cursor.clearSelection();
             setTextCursor(cursor);
             event->accept();
             return;
         }
         break;
     }
     case Qt::Key_Home:
     case Qt::Key_End: {
         if (event->modifiers() == Qt::NoModifier || event->modifiers() == Qt::ShiftModifier) {
             const QTextCursor::MoveOperation op = event->key() == Qt::Key_Home ? QTextCursor::Start : QTextCursor::End;
             const QTextCursor::MoveMode mode = event->modifiers() == Qt::NoModifier ? QTextCursor::MoveAnchor : QTextCursor::KeepAnchor;
             QTextCursor cursor = textCursor();
             cursor.movePosition(op, mode);
             setTextCursor(cursor);
             event->accept();
             return;
         }
         break;
     }
     default:
         break;
     }
 
     KTextEdit::keyPressEvent(event);
 }
 
 void KItemListRoleEditor::autoAdjustSize()
 {
     const qreal frameBorder = 2 * frameWidth();
 
     document()->adjustSize();
     const qreal requiredWidth = document()->size().width();
     const qreal availableWidth = size().width() - frameBorder;
     if (requiredWidth > availableWidth) {
         qreal newWidth = requiredWidth + frameBorder;
         if (parentWidget() && pos().x() + newWidth > parentWidget()->width()) {
             newWidth = parentWidget()->width() - pos().x();
         }
         resize(newWidth, size().height());
     }
 
     const qreal requiredHeight = document()->size().height();
     const qreal availableHeight = size().height() - frameBorder;
     if (requiredHeight > availableHeight) {
         qreal newHeight = requiredHeight + frameBorder;
         if (parentWidget() && pos().y() + newHeight > parentWidget()->height()) {
             newHeight = parentWidget()->height() - pos().y();
         }
         resize(size().width(), newHeight);
     }
 }
 
 void KItemListRoleEditor::emitRoleEditingFinished(EditResultDirection direction)
 {
     QVariant ret;
     ret.setValue(EditResult{KIO::encodeFileName(toPlainText()), direction});
 
     if (!m_blockFinishedSignal) {
         Q_EMIT roleEditingFinished(m_role, ret);
     }
 }
 
 #include "moc_kitemlistroleeditor.cpp"