language/editor/persistentmovingrangeprivate.cpp

0001 /*
0002     SPDX-FileCopyrightText: 2010 David Nolden <david.nolden.kdevelop@art-master.de>
0003
0004     SPDX-License-Identifier: GPL-2.0-or-later
0005 */
0006
0007 #include "persistentmovingrangeprivate.h"
0008 #include <interfaces/icore.h>
0009 #include <interfaces/ilanguagecontroller.h>
0010 #include <backgroundparser/backgroundparser.h>
0011
0012 #include <KTextEditor/MovingInterface>
0013 #include <KTextEditor/Document>
0014
0015 void KDevelop::PersistentMovingRangePrivate::connectTracker()
0016 {
0017     Q_ASSERT(m_tracker == nullptr);
0018     Q_ASSERT(m_movingRange == nullptr);
0019
0020     m_tracker = ICore::self()->languageController()->backgroundParser()->trackerForUrl(m_document);
0021
0022     if (m_tracker) {
0023         // Create a moving range
0024         m_movingRange = m_tracker->documentMovingInterface()->newMovingRange(m_range);
0025         if (m_shouldExpand)
0026             m_movingRange->setInsertBehaviors(
0027                 KTextEditor::MovingRange::ExpandLeft | KTextEditor::MovingRange::ExpandRight);
0028         // can't use new connect syntax here, MovingInterface is not a QObject
0029         connect(m_tracker->document(), SIGNAL(aboutToDeleteMovingInterfaceContent(KTextEditor::Document*)), this,
0030                 SLOT(aboutToDeleteMovingInterfaceContent()));
0031         connect(m_tracker->document(), SIGNAL(aboutToInvalidateMovingInterfaceContent(KTextEditor::Document*)), this,
0032                 SLOT(aboutToInvalidateMovingInterfaceContent()));
0033         m_movingRange->setAttribute(m_attribte);
0034         m_movingRange->setZDepth(m_zDepth);
0035     }
0036 }
0037
0038 void KDevelop::PersistentMovingRangePrivate::aboutToInvalidateMovingInterfaceContent()
0039 {
0040     if (m_movingRange) {
0041         m_valid = false; /// @todo More precise tracking: Why is the document being invalidated? Try
0042         ///            keeping the range alive. DocumentChangeTracker to the rescue.
0043         delete m_movingRange;
0044         m_movingRange = nullptr;
0045         m_range = KTextEditor::Range::invalid();
0046     }
0047 }
0048
0049 void KDevelop::PersistentMovingRangePrivate::aboutToDeleteMovingInterfaceContent()
0050 {
0051     // The whole document is being closed. Map the range back to the last saved revision, and use that.
0052     updateRangeFromMoving();
0053     if (m_tracker && m_tracker->diskRevision()) {
0054         if (m_movingRange)
0055             m_range = m_tracker->diskRevision()->transformFromCurrentRevision(m_range).castToSimpleRange();
0056     } else {
0057         m_valid = false;
0058         m_range = KTextEditor::Range::invalid();
0059     }
0060
0061     // No need to disconnect, as the document is being deleted. Simply set the references to zero.
0062     delete m_movingRange;
0063     m_movingRange = nullptr;
0064     m_tracker.clear();
0065 }
0066
0067 #include "moc_persistentmovingrangeprivate.cpp"