appfw/viewserver/server/VWSWEVNT.CPP
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     1 // Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 #ifdef SYMBIAN_ENABLE_SPLIT_HEADERS
       
    16 #include "vwsinternal.h"
       
    17 #include "vwsdefpartner.h"
       
    18 #endif //SYMBIAN_ENABLE_SPLIT_HEADERS
       
    19 #include "VWSWEVNT.H"
       
    20 #include "VWSERVER.H"
       
    21 #include "VWSDEBUG.H"
       
    22 
       
    23 const TInt KPriorityNeverAtFront = -999;
       
    24 const TInt KPriorityAlwaysAtFront = 999;//Setting a priority greater than or equal to KPasswordWindowGroupPriority which is 1000,
       
    25 										//on a window group will require the capability SwEvent.If the client does not have 
       
    26 						    		    //this capability, then the window group priority will be reduced to KPasswordWindowGroupPriority - 1. 
       
    27 					 					//As KPasswordWindowGroupPriority has been deprectated 999 is set as the priority.KPriorityAlwaysAtFront
       
    28 					                    //is used when calling SetOrdinalPosition API.
       
    29  
       
    30 
       
    31 //
       
    32 // CVwsWServEventHandler.
       
    33 //
       
    34 
       
    35 CVwsWServEventHandler::CVwsWServEventHandler(CVwsServer& aServer, RWsSession& aWsSession, TBool aIgnoreFirstScreenDeviceChangedEvent)
       
    36 	: CActive(CActive::EPriorityStandard),iServer(aServer),iWsSession(aWsSession),
       
    37 	iIgnoreNextScreenDeviceChangedEvent(aIgnoreFirstScreenDeviceChangedEvent)
       
    38 	{
       
    39 	}
       
    40 
       
    41 CVwsWServEventHandler::~CVwsWServEventHandler()
       
    42 	{
       
    43 	Cancel();
       
    44 	}
       
    45 
       
    46 CVwsWServEventHandler* CVwsWServEventHandler::NewL(CVwsServer& aServer, RWsSession& aWsSession, TBool aIgnoreFirstScreenDeviceChangedEvent)
       
    47 	{
       
    48 	CVwsWServEventHandler* self=new(ELeave) CVwsWServEventHandler(aServer, aWsSession, aIgnoreFirstScreenDeviceChangedEvent);
       
    49 	CleanupStack::PushL(self);
       
    50 	self->ConstructL();
       
    51 	CleanupStack::Pop();
       
    52 	return self;
       
    53 	}
       
    54 
       
    55 void CVwsWServEventHandler::ConstructL()
       
    56 	{
       
    57 	CActiveScheduler::Add(this);
       
    58 	Queue();
       
    59 	}
       
    60 
       
    61 void CVwsWServEventHandler::Queue()
       
    62 	{
       
    63 	ASSERT (!IsActive());
       
    64 	iWsSession.EventReady(&iStatus);
       
    65 	SetActive();
       
    66 	}
       
    67 
       
    68 void CVwsWServEventHandler::RunL()
       
    69 	{
       
    70 	TWsEvent event;
       
    71 	iWsSession.GetEvent(event);
       
    72 	LOG3(CVwsLog::ELoud,_L("Received %d event type from WServ"),event.Type());
       
    73 	TInt err=KErrNone;
       
    74 	switch (event.Type()) 
       
    75 		{
       
    76 	case EEventScreenDeviceChanged:
       
    77 		if (iIgnoreNextScreenDeviceChangedEvent)
       
    78 			{
       
    79 			iIgnoreNextScreenDeviceChangedEvent = EFalse;
       
    80 			}
       
    81 		else
       
    82 			{
       
    83 			TRAP(err,iServer.HandleScreenDeviceChangedL());
       
    84 			}
       
    85 		break;
       
    86 	case EEventFocusGroupChanged:
       
    87 		iServer.HandleForegroundTaskChange();
       
    88 		break;
       
    89 	default:
       
    90 		break;
       
    91 		}
       
    92 
       
    93 	Queue();
       
    94 	User::LeaveIfError(err);
       
    95 	}
       
    96 
       
    97 void CVwsWServEventHandler::DoCancel()
       
    98 	{
       
    99 	iWsSession.EventReadyCancel();
       
   100 	}
       
   101 
       
   102 #ifdef _DEBUG
       
   103 TInt CVwsWServEventHandler::RunError(TInt aError)
       
   104 #else
       
   105 TInt CVwsWServEventHandler::RunError(TInt /*aError*/)
       
   106 #endif
       
   107 	{
       
   108 	LOG3(CVwsLog::ENormal,_L("CVwsWServEventHandler::RunError: %d"), aError);
       
   109 	iServer.KickStartEventQ();
       
   110 	return KErrNone;       
       
   111 	}
       
   112 
       
   113 //
       
   114 // class CVwsWServRedrawer
       
   115 //
       
   116 
       
   117 CVwsWServRedrawer::CVwsWServRedrawer(RWsSession& aWsSession, CWindowGc& aGc, RWindow& aWindow)
       
   118 	: CActive(EPriorityLow),iWsSession(aWsSession),iGc(aGc),iWindow(aWindow),iOpaque(EFalse)
       
   119 	{
       
   120 	}
       
   121 
       
   122 CVwsWServRedrawer::~CVwsWServRedrawer()
       
   123 	{
       
   124 	Cancel();
       
   125 	}
       
   126 
       
   127 CVwsWServRedrawer* CVwsWServRedrawer::NewL(RWsSession& aWsSession, CWindowGc& aGc, RWindow& aWindow)
       
   128 	{
       
   129 	CVwsWServRedrawer* self=new(ELeave) CVwsWServRedrawer(aWsSession,aGc,aWindow);
       
   130 	CleanupStack::PushL(self);
       
   131 	self->ConstructL();
       
   132 	CleanupStack::Pop();
       
   133 	return self;
       
   134 	}	
       
   135 
       
   136 void CVwsWServRedrawer::ConstructL()
       
   137 	{
       
   138 	CActiveScheduler::Add(this);
       
   139 	Queue();
       
   140 	}
       
   141 
       
   142 void CVwsWServRedrawer::RunL()
       
   143 	{
       
   144 	TWsRedrawEvent redraw;
       
   145 	iWsSession.GetRedraw(redraw);
       
   146 	HandleRedrawEvent(redraw.Rect());
       
   147 	Queue();
       
   148 	}
       
   149 
       
   150 void CVwsWServRedrawer::Queue()
       
   151 	{
       
   152 	ASSERT (!IsActive());
       
   153 	iWsSession.RedrawReady(&iStatus);
       
   154 	SetActive();
       
   155 	}
       
   156 
       
   157 void CVwsWServRedrawer::DoCancel()
       
   158 	{
       
   159 	iWsSession.RedrawReadyCancel();
       
   160 	}
       
   161 
       
   162 void CVwsWServRedrawer::SetDrawMode(TBool aOpaque)
       
   163 	{
       
   164 	iOpaque=aOpaque;
       
   165 	}
       
   166 
       
   167 void CVwsWServRedrawer::HandleRedrawEvent(const TRect& aRect)
       
   168 	{
       
   169 	// this code is needed to make the screen redraw correctly
       
   170 	// after a screen mode switch.
       
   171 
       
   172 	LOG2(CVwsLog::ELoud,_L("CVwsWServRedrawer::HandleRedrawEvent"));
       
   173 	iGc.Activate(iWindow);
       
   174 	iWindow.BeginRedraw(aRect);
       
   175 	iWindow.EndRedraw();
       
   176 	iGc.Deactivate();
       
   177 	iWsSession.Flush();
       
   178 	}
       
   179 
       
   180 CVwsWServSessionHandler::CVwsWServSessionHandler(CVwsServer& aServer)
       
   181 	:iServer(aServer),
       
   182 	iFirstDisplay(ETrue)
       
   183 	{
       
   184 	}
       
   185 
       
   186 CVwsWServSessionHandler::~CVwsWServSessionHandler()
       
   187 	{
       
   188 	delete iWServEventHandler;
       
   189 	delete iWServRedrawer;
       
   190 	delete iGc;
       
   191 	delete iScreen;
       
   192 	iRootWin.Close();
       
   193 	if (iWindow!=NULL)
       
   194 		{
       
   195 		iWindow->Close();
       
   196 		delete iWindow;
       
   197 		}
       
   198 	
       
   199 	ASSERT(iWsSession.ResourceCount()==0);
       
   200 	iWsSession.Close();
       
   201 	}
       
   202 
       
   203 CVwsWServSessionHandler* CVwsWServSessionHandler::NewL(CVwsServer& aServer)
       
   204 	{
       
   205 	CVwsWServSessionHandler* self=new(ELeave) CVwsWServSessionHandler(aServer);
       
   206 	CleanupStack::PushL(self);
       
   207 	self->ConstructL();
       
   208 	CleanupStack::Pop();
       
   209 	return self;
       
   210 	}
       
   211 
       
   212 void CVwsWServSessionHandler::ConstructL()
       
   213 	{
       
   214 	CreateWServSessionL();
       
   215 	TBool ignoreFirstScreenDeviceChangedEvent = (GetScreenMode() > 0);
       
   216 	iWServEventHandler=CVwsWServEventHandler::NewL(iServer,iWsSession,
       
   217 												   ignoreFirstScreenDeviceChangedEvent);
       
   218 	iWServRedrawer=CVwsWServRedrawer::NewL(iWsSession,*iGc,*iWindow);
       
   219 	}
       
   220 
       
   221 void CVwsWServSessionHandler::CreateWServSessionL()
       
   222 	{
       
   223 	User::LeaveIfError(iWsSession.Connect());
       
   224 
       
   225 	iScreen=new(ELeave) CWsScreenDevice(iWsSession);
       
   226 	User::LeaveIfError(iScreen->Construct());
       
   227 	User::LeaveIfError(iScreen->CreateContext(iGc));
       
   228 
       
   229 	iRootWin=RWindowGroup(iWsSession);
       
   230 	User::LeaveIfError(iRootWin.Construct((TUint32)this,EFalse));
       
   231 	iRootWin.SetOrdinalPosition(0,KPriorityNeverAtFront);
       
   232 	iRootWin.EnableScreenChangeEvents();
       
   233 	iRootWin.EnableFocusChangeEvents();
       
   234 
       
   235 	iWindow=new(ELeave) RWindow(iWsSession);
       
   236 	User::LeaveIfError(iWindow->Construct(iRootWin,((TUint32)this)+1));
       
   237 	iWindow->Activate();
       
   238 	iWindow->SetVisible(EFalse);
       
   239 	}
       
   240 
       
   241 TInt CVwsWServSessionHandler::GetScreenMode()
       
   242 	{
       
   243 	return iScreen->CurrentScreenMode();
       
   244 	}
       
   245 
       
   246 void CVwsWServSessionHandler::ConfigureScreenDevice()
       
   247 	{
       
   248 	LOG2(CVwsLog::ENormal,_L("CVwsWServSessionHandler:::ConfigureScreenDevice()"));
       
   249 	TPixelsAndRotation sizeAndRotation;
       
   250 	iScreen->GetDefaultScreenSizeAndRotation(sizeAndRotation);
       
   251 	iScreen->SetScreenSizeAndRotation(sizeAndRotation);
       
   252 	iWindow->SetSize(sizeAndRotation.iPixelSize);
       
   253 	}
       
   254 
       
   255 void CVwsWServSessionHandler::DisplayWindow()
       
   256 	{
       
   257 	LOG2(CVwsLog::ENormal,_L("CVwsWServSessionHandler::DisplayWindow()"));
       
   258 	if (iFirstDisplay)
       
   259 		{
       
   260 		iRootWin.SetOrdinalPosition(0,KPriorityAlwaysAtFront);
       
   261 		iFirstDisplay=EFalse;
       
   262 		}
       
   263 	iWindow->SetVisible(ETrue);
       
   264 	iWsSession.Flush();	
       
   265 	}
       
   266 
       
   267 void CVwsWServSessionHandler::HideWindow()
       
   268 	{
       
   269 	LOG2(CVwsLog::ENormal,_L("CVwsWServSessionHandler::HideWindow()"));
       
   270 	iWindow->SetVisible(EFalse);
       
   271 	iWsSession.Flush();
       
   272 	iWServRedrawer->SetDrawMode(EFalse);
       
   273 	}
       
   274 
       
   275 void CVwsWServSessionHandler::UpdateScreenAndDisplayWindow()
       
   276 	{
       
   277 	ConfigureScreenDevice();
       
   278 	iWServRedrawer->SetDrawMode(ETrue);
       
   279 	DisplayWindow();
       
   280 	}
       
   281 	
       
   282 void CVwsWServSessionHandler::SetWindowBackgroundColor(const TRgb& aBgColor)
       
   283 	{
       
   284 	iWindow->SetBackgroundColor(aBgColor);
       
   285 	}