webengine/osswebengine/WebCore/platform/network/symbian/SynchRequest.cpp
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     1 /*
       
     2 * Copyright (c) 2006 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 the License "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:  Implementation of CSynchRequest
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 #include <../bidi.h>
       
    21 #include <e32std.h>
       
    22 #include <eikenv.h>
       
    23 
       
    24 #include "config.h"
       
    25 
       
    26 #include "BrCtl.h"
       
    27 #include "ResourceHandleInternal.h"
       
    28 #include "ResourceHandleManagerSymbian.h"
       
    29 #include "ResourceLoaderDelegate.h"
       
    30 #include "StaticObjectsContainer.h"
       
    31 
       
    32 #include "SynchRequest.h"
       
    33 
       
    34 namespace WebCore
       
    35 {
       
    36 
       
    37 // ============================ MEMBER FUNCTIONS ===============================
       
    38 
       
    39 // ----------------------------------------------------------------------------
       
    40 // CSynchRequest::NewL()
       
    41 // Two-phased constructor.
       
    42 // ----------------------------------------------------------------------------
       
    43 //
       
    44 CSynchRequest* CSynchRequest::NewL()
       
    45 {
       
    46     CSynchRequest* self = NewLC();
       
    47     CleanupStack::Pop(self);
       
    48     return self;
       
    49 }
       
    50 
       
    51 // ----------------------------------------------------------------------------
       
    52 // CSynchRequest::NewLC()
       
    53 // Two-phased constructor.
       
    54 // ----------------------------------------------------------------------------
       
    55 //
       
    56 CSynchRequest* CSynchRequest::NewLC()
       
    57 {
       
    58     CSynchRequest* self = new ( ELeave ) CSynchRequest();
       
    59     CleanupStack::PushL(self);
       
    60     self->ConstructL();
       
    61     return self;
       
    62 }
       
    63 
       
    64 // ----------------------------------------------------------------------------
       
    65 // CSynchRequest::~CSynchRequest()
       
    66 // Destructor.
       
    67 // ----------------------------------------------------------------------------
       
    68 //
       
    69 CSynchRequest::~CSynchRequest()
       
    70 {
       
    71     if (IsActive()) {
       
    72         Cancel();
       
    73     }
       
    74 
       
    75     if (iActiveSchedulerWait) {
       
    76         delete iActiveSchedulerWait;
       
    77         iActiveSchedulerWait = NULL;
       
    78     }
       
    79 }
       
    80 
       
    81 // ----------------------------------------------------------------------------
       
    82 // CSynchRequest::CSynchRequest()
       
    83 // Constructor.
       
    84 // ----------------------------------------------------------------------------
       
    85 //
       
    86 CSynchRequest::CSynchRequest()
       
    87     : CActive(CActive::EPriorityStandard)
       
    88     , m_synchLoader(0)
       
    89     , m_error(String(), KErrNone, String(), String())
       
    90 {
       
    91     CActiveScheduler::Add( this);
       
    92 }
       
    93 
       
    94 // ----------------------------------------------------------------------------
       
    95 // CSynchRequest::ConstructL()
       
    96 // Perform second phase construction of this object.
       
    97 // ----------------------------------------------------------------------------
       
    98 //
       
    99 void CSynchRequest::ConstructL()
       
   100 {
       
   101     // Initializing the ActiveShedulerWait.
       
   102     iActiveSchedulerWait = new (ELeave) CActiveSchedulerWait();
       
   103 }
       
   104 
       
   105 // ----------------------------------------------------------------------------
       
   106 // CSynchRequest::RunL()
       
   107 // Respond to an event.
       
   108 // ----------------------------------------------------------------------------
       
   109 //
       
   110 void CSynchRequest::RunL()
       
   111 {
       
   112     if (KErrNone == iStatus.Int()) {
       
   113         m_error = ResourceError();
       
   114     } else {
       
   115         m_error = ResourceError(String(), iStatus.Int(), String(), String());
       
   116     }
       
   117     	
       
   118     if (iActiveSchedulerWait->IsStarted()) {
       
   119         iActiveSchedulerWait->AsyncStop();
       
   120     }
       
   121 }
       
   122 
       
   123 // ----------------------------------------------------------------------------
       
   124 // CSynchRequest::DoCancel()
       
   125 // Cancel any outstanding requests.
       
   126 // ----------------------------------------------------------------------------
       
   127 //
       
   128 void CSynchRequest::DoCancel()
       
   129 {
       
   130 	if (m_synchLoader) {
       
   131 		m_synchLoader->cancel();
       
   132 	} else {
       
   133         // Complete pending request
       
   134         if (KRequestPending == iStatus.Int()) {
       
   135         	TRequestStatus* status = &iStatus;
       
   136             User::RequestComplete(status, KErrAbort);
       
   137         }        
       
   138 	}
       
   139 }
       
   140 
       
   141 // ----------------------------------------------------------------------------
       
   142 // CSynchRequest::RunError(TInt aError)
       
   143 // Handles a leave occurring in the request completion event handler RunL().
       
   144 // ----------------------------------------------------------------------------
       
   145 //
       
   146 TInt CSynchRequest::RunError(TInt /*aError*/)
       
   147 {
       
   148     return KErrNone;
       
   149 }
       
   150 
       
   151 // ----------------------------------------------------------------------------
       
   152 //  CSynchRequest::CreateResource()
       
   153 //  
       
   154 // ----------------------------------------------------------------------------
       
   155 //
       
   156 
       
   157 void CSynchRequest::CreateResource(const ResourceRequest& request,
       
   158                                    ResourceError& error,
       
   159                                    ResourceResponse& response,
       
   160                                    Vector<char>& data,
       
   161                                    Frame* frame)
       
   162 {
       
   163     if (IsActive()) {
       
   164         Cancel();
       
   165     }
       
   166     iStatus = KRequestPending;
       
   167         
       
   168     SetActive();
       
   169 
       
   170     // Initialize loader for processing responses
       
   171     m_synchLoader =  SynchResourceHandleClient::create(iStatus, request, frame);
       
   172     if (!m_synchLoader) {
       
   173         if (IsActive()) {
       
   174             Cancel();
       
   175         }
       
   176         error = m_error;
       
   177         return;
       
   178     }
       
   179     
       
   180     // Wait for request finished or other failure/cancel events
       
   181     iActiveSchedulerWait->Start();
       
   182 
       
   183     if (m_error.errorCode() != KErrNone) {
       
   184     	// Prefer local override of error (e.g., to signal user cancel)
       
   185     	error = m_error;
       
   186     }
       
   187     else {
       
   188     	error = m_synchLoader->resourceError();
       
   189     }
       
   190     data = m_synchLoader->data();
       
   191     response = m_synchLoader->resourceResponse();
       
   192     
       
   193     m_synchLoader = 0;
       
   194 }
       
   195 
       
   196 } // end namespace WebCore
       
   197 
       
   198 // End of File