modernize: Migrate action-related things to PMF connects

[quassel.git] / src / uisupport / tabcompleter.cpp

diff --git a/src/uisupport/tabcompleter.cpp b/src/uisupport/tabcompleter.cpp
index baae742..cd8209b 100644 (file)
--- a/src/uisupport/tabcompleter.cpp
+++ b/src/uisupport/tabcompleter.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2005-2012 by the Quassel Project                        *
+ *   Copyright (C) 2005-2018 by the Quassel Project                        *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -45,18 +45,18 @@ TabCompleter::TabCompleter(MultiLineEdit *_lineEdit)
     _enabled(false),
     _nickSuffix(": ")
 {
-    // use both an Action and generic eventFilter, to make the shortcut configurable
-    // yet still be able to reset() when required
+    // This Action just serves as a container for the custom shortcut and isn't actually handled;
+    // apparently, using tab as an Action shortcut in an input widget is unreliable on some platforms (e.g. OS/2)
     _lineEdit->installEventFilter(this);
     ActionCollection *coll = GraphicalUi::actionCollection("General");
-    coll->addAction("TabCompletionKey", new Action(tr("Tab completion"), coll,
-            this, SLOT(onTabCompletionKey()), QKeySequence(Qt::Key_Tab)));
+    QAction *a = coll->addAction("TabCompletionKey", new Action(tr("Tab completion"), coll, this, &TabCompleter::onTabCompletionKey, QKeySequence(Qt::Key_Tab)));
+    a->setEnabled(false); // avoid catching the shortcut
 }
 
 
 void TabCompleter::onTabCompletionKey()
 {
-    complete();
+    // do nothing; we use the event filter instead
 }
 
 
@@ -79,8 +79,8 @@ void TabCompleter::buildCompletionList()
     if (!_currentNetwork)
         return;
 
-    QString tabAbbrev = _lineEdit->text().left(_lineEdit->cursorPosition()).section(QRegExp("[^#\\w\\d-_\\[\\]{}|`^.\\\\]"), -1, -1);
-    QRegExp regex(QString("^[-_\\[\\]{}|`^.\\\\]*").append(QRegExp::escape(tabAbbrev)), Qt::CaseInsensitive);
+    QString tabAbbrev = _lineEdit->text().left(_lineEdit->cursorPosition()).section(QRegExp(R"([^#\w\d-_\[\]{}|`^.\\])"), -1, -1);
+    QRegExp regex(QString(R"(^[-_\[\]{}|`^.\\]*)").append(QRegExp::escape(tabAbbrev)), Qt::CaseInsensitive);
 
     // channel completion - add all channels of the current network to the map
     if (tabAbbrev.startsWith('#')) {
@@ -108,6 +108,7 @@ void TabCompleter::buildCompletionList()
         case BufferInfo::QueryBuffer:
             if (regex.indexIn(_currentBufferName) > -1)
                 _completionMap[_currentBufferName.toLower()] = _currentBufferName;
+            // fallthrough
         case BufferInfo::StatusBuffer:
             if (!_currentNetwork->myNick().isEmpty() && regex.indexIn(_currentNetwork->myNick()) > -1)
                 _completionMap[_currentNetwork->myNick().toLower()] = _currentNetwork->myNick();
@@ -151,7 +152,7 @@ void TabCompleter::complete()
             _lastCompletionLength += _nickSuffix.length();
         }
         else if (s.addSpaceMidSentence()) {
-            _lineEdit->insert(" ");
+            _lineEdit->addCompletionSpace();
             _lastCompletionLength++;
         }
 
@@ -177,11 +178,13 @@ bool TabCompleter::eventFilter(QObject *obj, QEvent *event)
     if (obj != _lineEdit || event->type() != QEvent::KeyPress)
         return QObject::eventFilter(obj, event);
 
-    QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
+    auto *keyEvent = static_cast<QKeyEvent *>(event);
 
-    if (keyEvent->key() != GraphicalUi::actionCollection("General")->action("TabCompletionKey")->shortcut()) {
+    if (keyEvent->key() == GraphicalUi::actionCollection("General")->action("TabCompletionKey")->shortcut()[0])
+        complete();
+    else
         reset();
-    }
+
     return false;
 }