--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/telutils/dialpad/src/dialpadkeysequenceeventfilter.cpp	Tue Aug 31 15:45:17 2010 +0300
@@ -0,0 +1,150 @@
+/*
+* 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;
+    
+    constructKeySequenceToHandlerMappings();
+}
+
+
+/*!
+  DialpadKeySequenceEventFilter::~DialpadKeySequenceEventFilter.
+ */
+DialpadKeySequenceEventFilter::~DialpadKeySequenceEventFilter()
+{
+    PHONE_TRACE;
+}
+
+
+/*!
+  DialpadKeySequenceEventFilter::eventFilter.
+ */
+bool DialpadKeySequenceEventFilter::eventFilter(QObject *watched, QEvent *event)
+{
+    Q_UNUSED(watched)
+    
+    const bool eventFiltered = false;
+#ifdef Q_OS_SYMBIAN    
+    // Code is executed after '#' is pressed as specified in Dialer UI 
+    // specification.
+    if (QEvent::KeyRelease == event->type()){
+        QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
+        if (Qt::Key_NumberSign == keyEvent->key())  {        
+            QString keySequenceCandidate = HbStringUtil::convertDigitsTo(
+                mDialpad->editor().text(), WesternDigit);
+            XQAiwInterfaceDescriptor keySequenceHandler = 
+                findKeySequenceHandler(keySequenceCandidate);
+            if (keySequenceHandler.isValid()) {
+                QScopedPointer<XQAiwRequest> request(mAiwMgr.create(
+                    keySequenceHandler, 
+                    "executeKeySequence(QString)",
+                    false));
+                request->setSynchronous(true);
+                request->setBackground(true);
+                QList<QVariant> arguments;
+                arguments << keySequenceCandidate;
+                request->setArguments(arguments);
+                
+                QVariant keySequenceProcessed;
+                bool requestOk = request->send(keySequenceProcessed);
+                if (requestOk && keySequenceProcessed.toBool()) {
+                    mDialpad->editor().setText(QString(""));
+                }
+            }
+        }
+    }
+#else
+    Q_UNUSED(event)
+#endif // Q_OS_SYMBIAN
+    
+    return eventFiltered;
+}
+
+
+/*!
+  DialpadKeySequenceEventFilter::constructKeySequenceToHandlerMappings.
+ */
+void DialpadKeySequenceEventFilter::constructKeySequenceToHandlerMappings()
+{
+    PHONE_TRACE;
+    
+    QList<XQAiwInterfaceDescriptor> implementations = mAiwMgr.list(
+        "com.nokia.symbian.IKeySequenceRecognition", 
+        "");
+    
+    foreach (XQAiwInterfaceDescriptor d, implementations)
+    {
+        QScopedPointer<XQAiwRequest> request(mAiwMgr.create(
+            d,
+            "keySequenceValidator()",
+            false));
+        request->setSynchronous(true);
+        request->setBackground(true);
+        
+        QVariant keySequenceValidator;
+        bool requestOk = request->send(keySequenceValidator);
+        if (requestOk && keySequenceValidator.toString().size()) {
+            QString validator = keySequenceValidator.toString();
+            mValidators[validator] = d;
+        }
+    }
+}
+
+
+/*!
+  DialpadKeySequenceEventFilter::findKeySequenceHandler.
+ */
+XQAiwInterfaceDescriptor DialpadKeySequenceEventFilter::findKeySequenceHandler(
+    const QString &keySequenceCandidate) 
+{
+    PHONE_TRACE;
+
+    XQAiwInterfaceDescriptor keySequenceHandler;
+    
+    QList<QString> validatorExpressions = mValidators.keys();
+    QList<QString>::const_iterator it;
+    for (it = validatorExpressions.constBegin(); 
+         (it != validatorExpressions.constEnd()) && (!keySequenceHandler.isValid());
+         ++it) {
+        QString validatorExpression = *it;
+        QRegExp expression(validatorExpression);
+        if (expression.exactMatch(keySequenceCandidate)) {
+            keySequenceHandler = mValidators.value(*it);
+        }
+    }
+    
+    return keySequenceHandler;
+}