usbengines/usbotgwatcher/src/cusbindicatornotifier.cpp
changeset 34 7858bc6ead78
parent 31 dfdd8240f7c8
child 35 9d8b04ca6939
equal deleted inserted replaced
31:dfdd8240f7c8 34:7858bc6ead78
     1 /*
       
     2  * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     3  * All rights reserved.
       
     4  * This component and the accompanying materials are made available
       
     5  * under the terms of "Eclipse Public License v1.0"
       
     6  * which accompanies this distribution, and is available
       
     7  * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8  *
       
     9  * Initial Contributors:
       
    10  * Nokia Corporation - initial contribution.
       
    11  *
       
    12  * Contributors:
       
    13  *
       
    14  * Description:  Blink/show Usb indicator notifier implementation
       
    15  *
       
    16  */
       
    17 
       
    18 #include <AknSmallIndicator.h>
       
    19 #include <avkon.hrh>
       
    20 #include <usbuinotif.h>
       
    21 
       
    22 #include "cusbindicatornotifier.h"
       
    23 #include "cusbstate.h"
       
    24 #include "definitions.h"
       
    25 
       
    26 #include "debug.h"
       
    27 #include "panic.h"
       
    28 
       
    29 // ======== MEMBER FUNCTIONS ========
       
    30 
       
    31 // -----------------------------------------------------------------------------
       
    32 // Two-phased constructor.
       
    33 // -----------------------------------------------------------------------------
       
    34 //
       
    35 CUsbIndicatorNotifier* CUsbIndicatorNotifier::NewL(
       
    36         CUsbNotifManager& aNotifManager, CUsbOtgWatcher& aOtgWatcher)
       
    37     {
       
    38     LOG_FUNC
       
    39 
       
    40     CUsbIndicatorNotifier* self = new (ELeave) CUsbIndicatorNotifier(
       
    41             aNotifManager, aOtgWatcher);
       
    42     CleanupStack::PushL(self);
       
    43     self->ConstructL();
       
    44     CleanupStack::Pop(self);
       
    45     return self;
       
    46     }
       
    47 
       
    48 // ---------------------------------------------------------------------------
       
    49 // Destructor
       
    50 // ---------------------------------------------------------------------------
       
    51 //
       
    52 CUsbIndicatorNotifier::~CUsbIndicatorNotifier()
       
    53     {
       
    54     LOG_FUNC
       
    55 
       
    56     Close();
       
    57 
       
    58     if (iOtgWatcher.VBusObserver())
       
    59         {
       
    60         TRAP_IGNORE(iOtgWatcher.VBusObserver()->UnsubscribeL(*this));
       
    61         }
       
    62 
       
    63     // Unsubscribe from otg watcher states change notifications
       
    64     TRAP_IGNORE(iOtgWatcher.UnsubscribeL(*this));
       
    65     }
       
    66 
       
    67 // ---------------------------------------------------------------------------
       
    68 // C++ constructor
       
    69 // ---------------------------------------------------------------------------
       
    70 //
       
    71 CUsbIndicatorNotifier::CUsbIndicatorNotifier(CUsbNotifManager& aNotifManager,
       
    72         CUsbOtgWatcher& aOtgWatcher) :
       
    73     CUsbNotifier(aNotifManager, KUsbUiNotifOtgIndicator, NULL), iOtgWatcher(
       
    74             aOtgWatcher)
       
    75     {
       
    76     LOG_FUNC
       
    77 
       
    78     //To be changed to EAknIndicatorStateAnimate and remove iIconBlinkingTimer
       
    79     //when AVKON implements animation form of usb indicator.
       
    80     iIndicatorState = EAknIndicatorStateOn;
       
    81     }
       
    82 
       
    83 // ---------------------------------------------------------------------------
       
    84 // Second-phase constructor
       
    85 // ---------------------------------------------------------------------------
       
    86 //
       
    87 void CUsbIndicatorNotifier::ConstructL()
       
    88     {
       
    89     LOG_FUNC
       
    90 
       
    91     // Subscribe for VBus change notifications
       
    92     iOtgWatcher.VBusObserver()->SubscribeL(*this);
       
    93 
       
    94     // Subscribe for otg watcher states change notifications
       
    95     iOtgWatcher.SubscribeL(*this);
       
    96 
       
    97     // check here for condition to set usb indicator
       
    98     SetIndicatorL();
       
    99     }
       
   100 
       
   101 // ---------------------------------------------------------------------------
       
   102 // Show/hide static icon of the indicator. 
       
   103 // If the indicator is blinking, stop blinking it and show/hide the static 
       
   104 // form of the indicator.
       
   105 // ---------------------------------------------------------------------------
       
   106 //
       
   107 void CUsbIndicatorNotifier::ShowStaticL(TBool aVisible)
       
   108     {
       
   109     LOG_FUNC
       
   110 
       
   111     LOG1("aVisible = %d" , aVisible);
       
   112 
       
   113     SetIndicatorStateL(aVisible
       
   114                                 ? EAknIndicatorStateOn
       
   115                                    : EAknIndicatorStateOff);
       
   116     }
       
   117 
       
   118 // ---------------------------------------------------------------------------
       
   119 // 
       
   120 // ---------------------------------------------------------------------------
       
   121 //
       
   122 void CUsbIndicatorNotifier::BlinkL()
       
   123     {
       
   124     LOG_FUNC
       
   125 
       
   126     SetIndicatorStateL( EAknIndicatorStateAnimate );
       
   127     }
       
   128 
       
   129 // ---------------------------------------------------------------------------
       
   130 // From base class CUsbNotifier
       
   131 // ---------------------------------------------------------------------------
       
   132 //
       
   133 void CUsbIndicatorNotifier::ShowL()
       
   134     {
       
   135     LOG_FUNC
       
   136 
       
   137     ShowStaticL(ETrue);
       
   138     }
       
   139 
       
   140 // ---------------------------------------------------------------------------
       
   141 // From CUsbNotifier
       
   142 // ---------------------------------------------------------------------------
       
   143 //
       
   144 void CUsbIndicatorNotifier::Close()
       
   145     {
       
   146     LOG_FUNC
       
   147 
       
   148     TRAP_IGNORE( ShowStaticL(EFalse) );
       
   149     }
       
   150 
       
   151 // ---------------------------------------------------------------------------
       
   152 // Set USB indicator On or Off
       
   153 // ---------------------------------------------------------------------------
       
   154 //
       
   155 void CUsbIndicatorNotifier::SetIndicatorStateL(const TInt aState)
       
   156     {
       
   157 
       
   158     LOG1( "USB indicator State = %d" , aState);
       
   159 
       
   160     CAknSmallIndicator* indicator = CAknSmallIndicator::NewLC(TUid::Uid(
       
   161             EAknIndicatorUSBConnection));
       
   162     indicator->SetIndicatorStateL(aState);
       
   163     CleanupStack::PopAndDestroy(indicator); //indicator    
       
   164     }
       
   165 
       
   166 // ---------------------------------------------------------------------------
       
   167 // 
       
   168 // ---------------------------------------------------------------------------
       
   169 //
       
   170 void CUsbIndicatorNotifier::OtgWatcherStateChangedL(TUsbStateIds aState)
       
   171     {
       
   172     SetIndicatorL();
       
   173     }
       
   174 
       
   175 // ---------------------------------------------------------------------------
       
   176 // 
       
   177 // ---------------------------------------------------------------------------
       
   178 //
       
   179 void CUsbIndicatorNotifier::VBusDownL()
       
   180     {
       
   181     SetIndicatorL();
       
   182     }
       
   183 
       
   184 // ---------------------------------------------------------------------------
       
   185 // 
       
   186 // ---------------------------------------------------------------------------
       
   187 //
       
   188 void CUsbIndicatorNotifier::VBusUpL()
       
   189     {
       
   190     SetIndicatorL();
       
   191     }
       
   192 
       
   193 // ---------------------------------------------------------------------------
       
   194 // 
       
   195 // ---------------------------------------------------------------------------
       
   196 //  
       
   197 void CUsbIndicatorNotifier::VBusObserverErrorL(TInt aError)
       
   198     {
       
   199     // do nothing
       
   200     }
       
   201 
       
   202 // ---------------------------------------------------------------------------
       
   203 // 
       
   204 // ---------------------------------------------------------------------------
       
   205 //  
       
   206 void CUsbIndicatorNotifier::SetIndicatorL()
       
   207     {
       
   208     if (!(iOtgWatcher.IsDeviceA()) || iOtgWatcher.CurrentHostState()->Id() == EUsbStateHostAPeripheral)
       
   209         {
       
   210         // if B or peripheral, than other party (usbwatcher) takes care of usb indicator
       
   211         // in combined usbwatcher (if role swap allowed) one class has to manage usb indicator 
       
   212         return;
       
   213         }
       
   214 
       
   215     // if VBus Up and we are host -> show indicator
       
   216     if ((iOtgWatcher.VBusObserver()->VBus() == CUsbVBusObserver::EVBusUp)
       
   217             && (iOtgWatcher.CurrentHostState()->Id() == EUsbStateHostAHost))
       
   218         {
       
   219         ShowStaticL(ETrue);
       
   220         }
       
   221     // if VBus up and we are not host -> Blink indicator
       
   222     else if ((iOtgWatcher.VBusObserver()->VBus() == CUsbVBusObserver::EVBusUp)
       
   223             && (iOtgWatcher.CurrentHostState()->Id() != EUsbStateHostAHost))
       
   224         {
       
   225         BlinkL();
       
   226         }
       
   227     else
       
   228     // Otherwise do not show indicator
       
   229         {
       
   230         ShowStaticL(EFalse);
       
   231         }
       
   232     }
       
   233 
       
   234 // End of file