Fixing a client crash that could be triggered under certain preconditions if a ircUse...

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

diff --git a/src/uisupport/inputline.cpp b/src/uisupport/inputline.cpp
index 341905a..521613f 100644 (file)
--- a/src/uisupport/inputline.cpp
+++ b/src/uisupport/inputline.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2005/06 by the Quassel IRC Team                         *
+ *   Copyright (C) 2005/06 by the Quassel Project                          *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -22,54 +22,109 @@
 
 #include "tabcompleter.h"
 
-InputLine::InputLine(QWidget *parent) : QLineEdit(parent) {
-  idx = 0;
-  connect(this, SIGNAL(returnPressed()), this, SLOT(enter()));
-  tabComplete = new TabCompleter(this);
-  connect(this, SIGNAL(nickListUpdated(QStringList)), tabComplete, SLOT(updateNickList(QStringList)));
+InputLine::InputLine(QWidget *parent)
+  : QLineEdit(parent),
+    idx(0),
+    tabCompleter(new TabCompleter(this))
+{
+  connect(this, SIGNAL(returnPressed()), this, SLOT(on_returnPressed()));
+  connect(this, SIGNAL(textChanged(QString)), this, SLOT(on_textChanged(QString)));
 }
 
 InputLine::~InputLine() {
-  delete tabComplete;
 }
 
 void InputLine::keyPressEvent(QKeyEvent * event) {
-  if(event->key() == Qt::Key_Tab) { // Tabcomplete
-    tabComplete->complete();
+  switch(event->key()) {
+  case Qt::Key_Up:
     event->accept();
-  } else {
-    tabComplete->disable();
-    if(event->key() == Qt::Key_Up) {
-      if(idx > 0) { idx--; setText(history[idx]); }
-      event->accept();
-    } else if(event->key() == Qt::Key_Down) {
-      if(idx < history.count()) idx++;
-      if(idx < history.count()) setText(history[idx]);
-      else setText("");
-      event->accept();
-    } else if(event->key() == Qt::Key_Select) {  // for Qtopia
-      emit returnPressed();
-      QLineEdit::keyPressEvent(event);
-    } else {
-      QLineEdit::keyPressEvent(event);
+
+    if(addToHistory(text())) {
+      clear();
+      break;
+    }
+    
+    if(idx > 0) {
+      idx--;
+      setText(history[idx]);
     }
+
+    break;
+    
+  case Qt::Key_Down:
+    event->accept();
+
+    if(addToHistory(text())) {
+      clear();
+      break;
+    }
+    
+    if(idx < history.count())
+      idx++;
+
+    if(idx < history.count())
+      setText(history[idx]);
+    else
+      clear();
+
+    break;
+    
+  case Qt::Key_Select:         // for Qtopia
+    emit returnPressed();
+
+  default:
+    QLineEdit::keyPressEvent(event);
   }
 }
 
-bool InputLine::event(QEvent *e) {
-  if(e->type() == QEvent::KeyPress) {
-    keyPressEvent(static_cast<QKeyEvent*>(e));
+bool InputLine::addToHistory(const QString &text) {
+  if(text.isEmpty())
+    return false;
+
+  Q_ASSERT(0 <= idx && idx <= history.count());
+  
+  if(history.isEmpty() || text != history[idx - (int)(idx == history.count())]) {
+    // if we change an entry of the history the changed entry is appended to the list and we seek to the end
+    // we could also easily change the entry in the history... per setting maybe?
+    history << text;
+    idx = history.count();
     return true;
+  } else {
+    return false;
   }
-  return QLineEdit::event(e);
 }
 
-void InputLine::enter() {
-  history << text();
-  idx = history.count();
+void InputLine::on_returnPressed() {
+  addToHistory(text());
+  emit sendText(text());
+  clear();
 }
 
-void InputLine::updateNickList(QStringList l) {
-  nickList = l;
-  emit nickListUpdated(l);
+void InputLine::on_textChanged(QString newText) {
+  QStringList lineSeperators;
+  lineSeperators << QString("\r\n")
+                << QString('\n')
+                << QString('\r');
+  
+  QString lineSep;
+  foreach(QString seperator, lineSeperators) {
+    if(newText.contains(seperator)) {
+      lineSep = seperator;
+      break;
+    }
+  }
+
+  if(lineSep.isEmpty())
+    return;
+  
+  if(newText.contains(lineSep)) {
+    clear();
+    QString line = newText.section(lineSep, 0, 0);
+    QString remainder = newText.section(lineSep, 1);
+    insert(line);
+    emit returnPressed();
+    insert(remainder);
+  }
+  
 }
+