screensaver/screensaverplugins/snsrbigclockscreensaverplugin/snsrindicatorwidget/src/snsrindicatormodel.cpp
changeset 97 66b5fe3c07fd
parent 95 32e56106abf2
child 98 e6f74eb7f69f
--- a/screensaver/screensaverplugins/snsrbigclockscreensaverplugin/snsrindicatorwidget/src/snsrindicatormodel.cpp	Mon Sep 27 11:52:00 2010 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,433 +0,0 @@
-/*
-* 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:  Model for handling indicator data.
-*
-*/
-
-#include <xqsettingsmanager.h>
-#include <xqsettingskey.h>
-#include <coreapplicationuissdkcrkeys.h>
-//#include <settingsinternalcrkeys.h> //TODO? these don't work in wk30..
-
-#include "snsrindicatormodel.h"
-#include "snsrindicatorinfo.h"
-
-/*!
-    \class SnsrIndicatorModel
-    \ingroup group_snsrbigclockscreensaverplugin
-    \brief Model for handling indicator data.
- */
-
-// TODO: what is the final type string of silent indicator? couldn't
-// find it in wk22 -> workaround solution: assume that it contains
-// substring "silence" like in their demo app.
-const char *gSilentIndicatorTypeString = "silence";
-const char *gOfflineIndicatorTypeString = "offline";
-
-
-/*!
-    Constructs a new SnsrIndicatorModel
-    \param parent Parent object.
- */
-SnsrIndicatorModel::SnsrIndicatorModel(QObject *parent): QObject(parent),
-    mOfflineStateOn(false)
-{   
-    initializeOfflineModeIndication();
-}
-
-/*!
-    Destructs the class.
- */
-SnsrIndicatorModel::~SnsrIndicatorModel()
-{
-     mNotificationIndicators.clear();
-     mSettingIndicators.clear();
-     mIndicatorsToShow.clear();
-     delete mSettingsManager;
-     delete mOfflineKey;
-}
-
-/*!
-    If there are already some active indicators when screensaver is
-    launched, then this method is called.
-    Indicators that are gonna be shown by the screensaver are
-    added to the model. 
-    \param activeIndicators Active universal indicators in 
-    chronological order according to their arrival time.
- */
-void SnsrIndicatorModel::handleActiveIndicators(
-    const QList<HbIndicatorInterface*> &activeIndicators)
-{
-    mNotificationIndicators.clear();
-    mSettingIndicators.clear();
-    
-    bool addedAny(false);
-    
-    for (int i = 0; i < activeIndicators.size(); ++i) {
-        HbIndicatorInterface* activatedIndicator = activeIndicators.at(i);
-        SnsrIndicatorInfo indicatorInfo;
-        if (activatedIndicator 
-            && showIndicatorInScreensaver(*activatedIndicator,indicatorInfo)) {
-            addIndicator(indicatorInfo);
-            connectToIndicatorsUpdateSignal(*activatedIndicator);
-            addedAny = true;
-        }
-    }
-    
-    // Send signal only once if there were any such indicators that
-    // screensaver is supposed to show (=added to the model).
-    if (addedAny) {
-        emitChangeSignal();
-    }
-}
-
-/*!
-    Called when some universal indicator gets activated.
-    \param activatedIndicator Activated universal indicator
- */
-void SnsrIndicatorModel::handleActivatedIndicator(
-    HbIndicatorInterface *activatedIndicator)
-{
-    SnsrIndicatorInfo indicatorInfo;
-    if (activatedIndicator
-        && showIndicatorInScreensaver(*activatedIndicator,indicatorInfo)) {
-        if (addIndicator(indicatorInfo)) {
-            connectToIndicatorsUpdateSignal(*activatedIndicator);
-            emitChangeSignal();
-        }
-    }
-}
-
-/*!
-    Called when some universal indicator gets deactivated.
-    \param deactivatedIndicator Deactivated universal indicator
- */
-void SnsrIndicatorModel::handleDeactivatedIndicator(
-    HbIndicatorInterface *deactivatedIndicator)
-{
-    if (deactivatedIndicator) {
-        SnsrIndicatorInfo indicatorInfo(
-            deactivatedIndicator->indicatorType(), 
-            deactivatedIndicator->indicatorData(HbIndicatorInterface::MonoDecorationNameRole).toString(),
-            deactivatedIndicator->category());
-        
-        if (findAndRemoveIndicator(indicatorInfo)) {
-            emitChangeSignal();
-        }
-    }
-}
-
-/*!
-    Called when some universal indicator updates its data by
-    emitting dataChanged signal. 
-    We listen to this signal because at least the silent indicator plugin demo 
-    uses this method to inform the clients when it gets deactivated/activated 
-    once it has been activated once by setting its icon path to empty/valid string.
-    Don't know if this is going to be the final solution as it's unconventional (?) 
-    but let's be prepared also to this kind of approach. 
- */
-void SnsrIndicatorModel::handleUpdatedIndicator()
-{
-    HbIndicatorInterface* indicator =
-        qobject_cast<HbIndicatorInterface*>(sender());
-    if (!indicator) {
-        return;
-    }
-    
-    // If indicator's icon path was set to empty string, then treat it
-    // like it were deactivated. And if not empty, then it's active again.
-    if (indicator->indicatorData(
-            HbIndicatorInterface::MonoDecorationNameRole).toString().isEmpty()) {
-        handleDeactivatedIndicator(indicator);
-    }
-    else {
-        handleActivatedIndicator(indicator);
-    }
-    
-}
-
-/*!
-    Sends a signal with a list of all currently active indicators.
-    No signal is sent if there are no active indicators currently.
- */
-void SnsrIndicatorModel::initializeIndicatorWidget()
-{
-    getCurrentOfflineState(); // update status to be on the safe side
-    
-    if ( anyActiveIndicators() ) {
-        emitChangeSignal();
-    }
-}
-
-/*!
-    listens airplane repository key. Not sure if the state can even be changed at the moment.
-    TODO: do we really need this?
- */
-void SnsrIndicatorModel::offlineValueChanged( const XQSettingsKey &key, const QVariant &value )
-{
-    bool previousState(mOfflineStateOn);
-    switch ( key.key() ) {
-        case KCoreAppUIsNetworkConnectionAllowed:
-             if(value.toInt() == ECoreAppUIsNetworkConnectionNotAllowed &&
-                value.isValid())
-                 {
-                 mOfflineStateOn = true;                     
-                 }
-             else
-                 {
-                 mOfflineStateOn = false; 
-                 }            
-             if (previousState != mOfflineStateOn) {
-                 emitChangeSignal();
-             }
-             break;
-        default:
-            break;
-
-        }
-}
-
-/*!
-    Add the indicator into this model. Handle here the order in which
-    indicators are shown in screensaver: notification indicators should be
-    shown in the same order as shown in statusbar, that is in reversed
-    chronological order. Silent indicator should always be the right-most one.
-    /retval true if indicator was added (not found already in the listings)
- */
-bool SnsrIndicatorModel::addIndicator(const SnsrIndicatorInfo &indicatorInfo)
-{
-    // To be on the safe side, check that the indicator doesn't already
-    // exists in the active indicator listings.
-    bool added(false);
-    
-    // Use prepend to keep the list in reversed chronological order
-    if (indicatorInfo.category == HbIndicatorInterface::NotificationCategory
-        && !isIndicatorAlreadyAdded(indicatorInfo)) {
-        mNotificationIndicators.prepend(indicatorInfo);
-        added = true;
-    }
-    else if (indicatorInfo.category == HbIndicatorInterface::SettingCategory
-             && !isIndicatorAlreadyAdded(indicatorInfo)) {
-        mSettingIndicators.append(indicatorInfo);
-        added = true;
-    }
-    
-    return added;
-}
-
-/*!
-    Check whether the indicator is already added in the active 
-    indicator listing.
-    /retval true if indicator is already added; false if not.
- */
-bool SnsrIndicatorModel::isIndicatorAlreadyAdded(const SnsrIndicatorInfo &indicatorInfo) const
-{
-    bool alreadyExits(false);
-    
-    const QList<SnsrIndicatorInfo> &indicatorList = 
-        indicatorInfo.category == HbIndicatorInterface::NotificationCategory 
-        ? mNotificationIndicators : mSettingIndicators;
-    
-    for (int i = 0; i < indicatorList.size(); ++i) {
-        if (indicatorList.at(i).type == indicatorInfo.type) {
-            alreadyExits = true;
-            break;
-        }
-    }
-    return alreadyExits;
-}
-
-/*!
-   Remove indicator if it can be found.
-   /retval true if the indicator was removed
- */
-bool SnsrIndicatorModel::findAndRemoveIndicator(const SnsrIndicatorInfo &indicatorInfo)
-{
-    bool removed(false);
-    int index(-1);
-    QList<SnsrIndicatorInfo> &indicatorList = 
-        indicatorInfo.category == HbIndicatorInterface::NotificationCategory 
-        ? mNotificationIndicators : mSettingIndicators;
-    
-    for (int i = 0; i < indicatorList.size(); ++i) {
-        if (indicatorList.at(i).type == indicatorInfo.type) {
-            index = i;
-            break;
-        }
-    }
-    if (index >= 0) {
-        indicatorList.removeAt(index);
-        removed = true;
-    }
-    return removed;
-}
-
-/*!
-   Check whether to show the indicator in screensaver or not.
-   Icon path is asked with HbIndicatorInterface::MonoDecorationNameRole 
-   which refers to the indicator icons shown also in the statusbar:
-   only 4 Notification indicators has premission to publish data with
-   that role. As those 4 are the ones wanted also by screensaver, no
-   extra checks are needed.
-   From the Setting category one should show only Silent indicator.
-   No indicators are shown from the Progress category.
-   If indicator should be shown by screensaver, indicator info is
-   packaged and returned within the parameter.
-   
-   /retval true if the indicator should be shown in screensaver
- */
-bool SnsrIndicatorModel::showIndicatorInScreensaver(
-        const HbIndicatorInterface &indicatorInterface, SnsrIndicatorInfo &indicatorInfo)
-{
-    bool show(false);
-    // all indicators shown by screensaver must have valid status bar icon path
-    QString iconPath = 
-            indicatorInterface.indicatorData(HbIndicatorInterface::MonoDecorationNameRole).toString();
-    QString typeString = indicatorInterface.indicatorType();
-    HbIndicatorInterface::Category category = indicatorInterface.category();
-    
-    if (category == HbIndicatorInterface::NotificationCategory
-        && !iconPath.isEmpty()) {
-        // only 4 indicators of this category has permission to publish status bar
-        // icon path->we should show all of them->no additional checks are neeeded.
-        show = true;
-    }
-    else if (category == HbIndicatorInterface::SettingCategory
-             && !iconPath.isEmpty()
-             // TODO: what is the type string of silent indicator? couldn't
-             // find it in wk22 -> workaround solution: assume that it contains
-             // substring "silence" like in their demo app.
-             // && type == gSilentIndicatorTypeString ) { 
-             && typeString.contains(gSilentIndicatorTypeString, Qt::CaseInsensitive)) {  
-        show = true;
-    }
-    else { // e.g. no Progress category indicators are shown
-        show = false;
-    }
- 
-    // package indicator data into indicatorInfo parameter
-    indicatorInfo.type = typeString;
-    indicatorInfo.iconPath = iconPath;
-    indicatorInfo.category = category;
-        
-    return show;
-}
-
-/*!
-   Start listening to indicator's dataChanged signals.
-   /parameter indicator whose dataChanged signal we want to listen
- */
-void SnsrIndicatorModel::connectToIndicatorsUpdateSignal(const HbIndicatorInterface &indicatorInterface)
-{
-    // Connect to silent indicator's dataChanged signal as it seems to 
-    // use unconventional method (demo at least) to inform when
-    // it's get deactivated/activated: dataChanged signal is emitted and
-    // icon path is set to empty string/valid string.
-    // It's assumed that we don't need to listen to other indicators
-    // as we are not interested e.g. when primary/secondary texts change etc.
-    
-    // NOTE: do NOT disconnect the indicator signal anywhere explicitly here
-    // or we won't get activation/deactivation messages.
-    if (indicatorInterface.indicatorType().contains(gSilentIndicatorTypeString, Qt::CaseInsensitive)) {
-        QObject::connect( &indicatorInterface, SIGNAL(dataChanged()),
-                          this, SLOT(handleUpdatedIndicator()));
-    }
-}
-
-/*!
-   Check whether there is any active indicator currently.
-   /retval true if there is at least one indicator to show
- */
-bool SnsrIndicatorModel::anyActiveIndicators() const
-{
-  bool any(false);
-  if ( mNotificationIndicators.size() != 0 
-      || mSettingIndicators.size() != 0 
-      || mOfflineStateOn ) {
-      any = true;
-  }
-  return any;
-}
-
-/*!
-    Send appropriate signal so that UI widget can update itself.
- */
-void SnsrIndicatorModel::emitChangeSignal()
-{   
-    if (anyActiveIndicators()) {   
-        updateIndicatorsToShowList();
-        emit indicatorsUpdated(mIndicatorsToShow);
-    }
-    else {
-        mIndicatorsToShow.clear();
-        emit allIndicatorsDeactivated();
-    }
-}
-
-/*!
-   Updates the list that contains all the indicators that
-   should be shown in UI. List should contain active indicators
-   in this order: 
-   offline + notification indicators + settings indicators.
-   This is the list that will be sent to the widget.
- */
-void SnsrIndicatorModel::updateIndicatorsToShowList()
-{
-    mIndicatorsToShow.clear();
-    
-    if (mOfflineStateOn) {
-        mIndicatorsToShow.append(mOfflineIndicatorInfo);
-    }
-    mIndicatorsToShow.append(mNotificationIndicators);
-    mIndicatorsToShow.append(mSettingIndicators);
-}
-
-/*!
- * Reads the airplanemode repository value and starts monitoring it.
- * if the value is 1, offline indicator is shown.
- */
-void SnsrIndicatorModel::initializeOfflineModeIndication()
-{
-    mOfflineIndicatorInfo = SnsrIndicatorInfo(
-        gOfflineIndicatorTypeString,
-        QLatin1String("qtg_mono_offline"),
-        HbIndicatorInterface::NotificationCategory);
-    
-    mSettingsManager = new XQSettingsManager(this);
-    //connect to offlineValueChanged slot so we get information if the value is changed while screensaver is on
-    connect(mSettingsManager, SIGNAL(valueChanged(XQSettingsKey, QVariant)),
-            this, SLOT(offlineValueChanged( const XQSettingsKey, const QVariant)));
-    mOfflineKey = new XQSettingsKey(XQSettingsKey::TargetCentralRepository, 
-                                    KCRUidCoreApplicationUIs.iUid, 
-                                    KCoreAppUIsNetworkConnectionAllowed);
-    if(mSettingsManager->readItemValue(*mOfflineKey).toInt() == ECoreAppUIsNetworkConnectionNotAllowed)
-        {
-        mOfflineStateOn = true;
-        } 
-    mSettingsManager->startMonitoring(*mOfflineKey);
-}
-
-/*!
-    Get current offline status.
- */
-void SnsrIndicatorModel::getCurrentOfflineState()
-{
-    if(mSettingsManager->readItemValue(*mOfflineKey).toInt() == ECoreAppUIsNetworkConnectionNotAllowed) {
-        mOfflineStateOn = true;
-    }
-    else {
-       mOfflineStateOn = false;
-    }
-}
-