--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/telutils/dialpad/src/dialpadkeysequenceeventfilter.cpp	Fri May 14 16:24:46 2010 +0300
@@ -0,0 +1,115 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Implements key sequence recognition filter for Dialpad.
+*
+*/
+#include <qdebug>
+#include <qkeyevent>
+#include <hblineedit.h>
+#include <hbstringutil.h>
+#ifdef Q_OS_SYMBIAN
+#include <xqservicerequest.h>
+#include <xqserviceutil.h>
+#endif //Q_OS_SYMBIAN
+#include "dialpadkeysequenceeventfilter.h"
+#include "dialpad.h"
+#include "qtphonesrvlog.h"
+
+/*!
+  DialpadKeySequenceEventFilter::DialpadKeySequenceEventFilter.
+ */
+DialpadKeySequenceEventFilter::DialpadKeySequenceEventFilter(
+    Dialpad* dialpad, QObject* parent) 
+    :
+    QObject(parent), mDialpad(dialpad)
+{
+    PHONE_TRACE;
+}
+
+
+/*!
+  DialpadKeySequenceEventFilter::~DialpadKeySequenceEventFilter.
+ */
+DialpadKeySequenceEventFilter::~DialpadKeySequenceEventFilter()
+{
+    PHONE_TRACE;
+}
+
+
+/*!
+  DialpadKeySequenceEventFilter::eventFilter.
+ */
+bool DialpadKeySequenceEventFilter::eventFilter(QObject *watched, QEvent *event)
+{
+    PHONE_TRACE;
+    Q_UNUSED(watched)
+    
+    const bool eventFiltered = false;
+#ifdef Q_OS_SYMBIAN
+    QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
+    const int keyCode = keyEvent->key();
+    const int eventType = event->type();
+    
+    // Code is executed after '#' is pressed as specified in Dialer UI 
+    // specification.
+    QString keySequenceCandidate = HbStringUtil::convertDigitsTo(
+        mDialpad->editor().text(), WesternDigit);
+    if (QEvent::KeyRelease == eventType && 
+        Qt::Key_NumberSign == keyCode &&
+        preValidateKeySequence(keySequenceCandidate)) {
+        XQServiceRequest request(
+            "com.nokia.services.telephony",
+            "executeKeySequence(QString)",
+            true);
+        
+        // Workaround for getting focus back to dialer after service request.
+        XQRequestInfo requestInfo;
+        requestInfo.setBackground(true);
+        request.setInfo(requestInfo);
+        
+        QVariant keySequenceProcessed;
+        request << keySequenceCandidate;
+        bool requestOk = request.send(keySequenceProcessed);
+        if (requestOk && keySequenceProcessed.toBool()) {
+            mDialpad->editor().setText(QString(""));
+        }
+    }
+#else
+    Q_UNUSED(event)
+#endif // Q_OS_SYMBIAN
+    
+    return eventFiltered;
+}
+
+
+/*!
+  DialpadKeySequenceEventFilter::preValidateKeySequence.
+  Checks that key sequence starts with '*#'and ends with '#'.
+ */
+bool DialpadKeySequenceEventFilter::preValidateKeySequence(
+    const QString &sequence)
+{
+    const int KMinimumLength = 4;
+    bool isValid = false;
+    
+    int lengthOfSequence = sequence.length();
+    if (KMinimumLength <= lengthOfSequence) {
+        isValid = 
+            (sequence.at(0) == '*') && 
+            (sequence.at(1) == '#') && 
+            (sequence.at(lengthOfSequence - 1) == '#');
+    }
+    
+    return isValid;
+}