mmsdemo1appui.cpp

这是一个在symbian操作系统下编写的发送彩信的程序。

/*
* ============================================================================
*  Name     : CMMSDemo1AppUi from MMSDemo1AppUi.cpp
*  Part of  : MMSDemo1
*  Created  : 28.10.2002 by Forum Nokia
*  Implementation notes:
*     Initial content was generated by Series 60 AppWizard.
*  Version  :
*  Copyright: Nokia Corp. 2003
* ============================================================================
*/

// INCLUDE FILES
#include "MMSDemo1AppUi.h"
#include "MMSDemo1MainContainer.h"
#include "MMSDemo1Engine.h"
#include "MMSDemo1Form.h"           // for own message editor
#include <MMSDemo1.rsg>
#include "mmsdemo1.hrh"

#include <avkon.hrh>                // for LISTBOX settings
#include <msvids.h>                 // for Message type IDs
#include <f32file.h>                // for RFile
#include <utf.h>		            // for CnvUtfConverter
#include <txtetext.h>               // for CPlainText
#include <barsread.h>               // for TResourceReader
#include <aknnavide.h>              // for CAknNavigationDecorator
#include <f32file.h>                // for RFile

#include <apgcli.h>                 // for RApaLsSession
#include <aknglobalnote.h>          // for AknGlobalNote

// CONSTANTS
const TInt KAttachmentTextLimit = 300;
const TUid KMmsDemo1ViewId = { 1 };
// MMSDemo1 message MIME type (wad for Web Address Description,
// combining a URL address and some describing text).
_LIT(KMMSDemo1MimeType, "text/vnd.wad");
// Wap Browser's constants UId
const TInt KWmlBrowserUid = 0x10008D39;


// ================= MEMBER FUNCTIONS =======================
//
// ----------------------------------------------------------
// CMMSDemo1AppUi::ConstructL()
// ?implementation_description
// ----------------------------------------------------------
//
void CMMSDemo1AppUi::ConstructL()
    {
    BaseConstructL();
    iEmbedded = EFalse;

    // checking the embedding status
	if (iDoorObserver)
	    {
        // Change CBA
        CEikButtonGroupContainer::Current()->SetCommandSetL(R_MMSDEMO1_SOFT_EMBEDDED);
        iEmbedded = ETrue;
	    }

    // View construction        
    iContainer = new (ELeave) CMMSDemo1MainContainer;        
    iContainer->SetMopParent(this);        
    iContainer->ConstructL( ClientRect() );        
    AddToStackL( iContainer );   

        
    // Navi pane set up        
    //       
    CEikStatusPane *sp = ((CAknAppUi*)iEikonEnv->EikAppUi())->StatusPane();	
    // Fetch pointer to the default navi pane control	
    iNaviPane = (CAknNavigationControlContainer *)sp->ControlL(TUid::Uid(EEikStatusPaneUidNavi));	
    TResourceReader reader;	
    iCoeEnv->CreateResourceReaderLC(reader,	R_MMSDEMO1_NAVI_MAIN);	
    iNaviDecorator = iNaviPane->CreateNavigationLabelL(reader);	
    CleanupStack::PopAndDestroy();  // resource reader	
    iNaviPane->PushL(*iNaviDecorator);    
    sp = NULL;


    // Init helper attributes & flags
    //
    iListIndex = 0;                 // - When listbox is open, this values gets the selected message index
    iFormReply = 0;                 // - This is used to tell if user pressed "Select" (1) or "Back" (0)
                                    //   used in CompleteReadL().
    iFunctionId = 0;                // - This id is used to guide execution to the right function after
                                    //   closing the Message Selection ListBox.
    iListOpen = EFalse;             // - True when listbox is open
    iMessageOpen = EFalse;          // - A message has been opened from Inbox of Drafts
                                    //   this is used to differentiate from a created, forwarded or a reply message.

    // construct MMS messaging engine
    iMmsEngine = CMMSDemo1Engine::NewL();
    }

// ----------------------------------------------------
// CMMSDemo1AppUi::~CMMSDemo1AppUi()
// Destructor
// Frees reserved resources
// ----------------------------------------------------
//
CMMSDemo1AppUi::~CMMSDemo1AppUi()
    {

    if(iSelection)
        {
        delete iSelection;
        }

    if ( iContainer )
        {
		RemoveFromStack( iContainer );
		delete iContainer;
		iContainer = NULL;
		}


    iNaviPane->Pop();
    delete iNaviDecorator;

    delete iMmsEngine;
    }

// ------------------------------------------------------------------------------
// CMMSDemo1AppUi::::DynInitMenuPaneL(TInt aResourceId,CEikMenuPane* aMenuPane)
//  This function is called by the EIKON framework just before it displays
//  a menu pane. Its default implementation is empty, and by overriding it,
//  the application can set the state of menu items dynamically according
//  to the state of application data.
// ------------------------------------------------------------------------------
//
void CMMSDemo1AppUi::DynInitMenuPaneL(
    TInt /*aResourceId*/,CEikMenuPane* /*aMenuPane*/)
    {
    }

// ----------------------------------------------------
// CMMSDemo1AppUi::HandleKeyEventL(
//     const TKeyEvent& aKeyEvent,TEventCode /*aType*/)
// ?implementation_description
// ----------------------------------------------------
//
TKeyResponse CMMSDemo1AppUi::HandleKeyEventL(
    const TKeyEvent& aKeyEvent,TEventCode /*aType*/)
    {

    switch ( aKeyEvent.iCode )
        {
        case EKeyOK:
            if(iListOpen) // list open, OK key can be used to select
                HandleCommandL(EMMSDemo1CmdListBoxSelect);
            else
                if(iEmbedded)
                    HandleCommandL(EMMSDemo1CmdOpenURL);
            break;

        default:
            return EKeyWasNotConsumed;
            break;
        }

    return EKeyWasConsumed;
    }

// ----------------------------------------------------
// CMMSDemo1AppUi::HandleCommandL(TInt aCommand)
// ?implementation_description
// ----------------------------------------------------
//
void CMMSDemo1AppUi::HandleCommandL(TInt aCommand)
    {
    // Init params for WAP browser launching (see: case EMMSDemo1CmdOpenURL)
    HBufC* param = HBufC::NewLC( 100 );
    TApaTaskList taskList( CEikonEnv::Static()->WsSession() );
    TUid id( TUid::Uid( KWmlBrowserUid ) );
    TApaTask task = taskList.FindApp( id );

    // Handle given command
    //
    // Here code is probably a bit difficult to follow but the main idea
    // is that a open etc. command opens up a selection list from which
    // the user can select a message. This selecting launches a new command
    // to be handled - the original function/command is saved into a
    // member variable iFunctionId, to be able to continue the right operation
    // after selection list has been closed.
    //
    switch ( aCommand )
        {
        case EAknSoftkeyBack:
        case EAknSoftkeyExit:
        case EEikCmdExit:
            {
            if (iDoorObserver)
	            {   
		        iDoorObserver->NotifyExit(MApaEmbeddedDocObserver::ENoChanges);
	            }
            Exit();
            break;
            }

        // Send current message if it is complete
        case EMMSDemo1CmdSend:
            SendMessageL();
            break;

        // Start editing a new message
        case EMMSDemo1CmdNewMessage:
            WriteMessageL();
            break;

        // Read all MMS messages from inbox into a list
        // (possibly open a message if user selects one)
        case EMMSDemo1CmdReadInbox:
            iFunctionId = 1;
            ReadMessagesL(KMsvGlobalInBoxIndexEntryId);
            break;

        // Read all MMS messages from Drafts into a list
        // (possibly open a message if user selects one)
        case EMMSDemo1CmdReadDrafts:
            iFunctionId = 1;
            ReadMessagesL(KMsvDraftEntryId);
            break;

        // Read all MMS messages from Inbox into a list
        // (one at a time, delete messages that are selected by the user)
        case EMMSDemo1CmdDeleteInbox:
            iFunctionId = 2;
            ReadMessagesL(KMsvGlobalInBoxIndexEntryId);
            break;

        // Read all MMS messages from Drafts into a list
        // (one at a time, delete messages that are selected by the user)
        case EMMSDemo1CmdDeleteDrafts:
            iFunctionId = 3;
            ReadMessagesL(KMsvDraftEntryId);
            break;

        // Create new forward message
        case EMMSDemo1CmdForwardMessage:
            iFunctionId = 4;
            if(!iMessageOpen)   // Forward command selected from the main menu 
                {               // i.e. message has not been opened first
                ReadMessagesL(KMsvGlobalInBoxIndexEntryId);
                }
            else
                {
                // A message was already open
                // now we have to continue the function forwarding, see
                // EMMSDemo1CmdListBoxSelect below.
                HandleCommandL(EMMSDemo1CmdListBoxSelect);
                }
            break;

        // Create new reply message
        case EMMSDemo1CmdReplyMessage: 
            iFunctionId = 5;                
            if(!iMessageOpen)   // Reply command selected from the main menu                     
                {               // i.e. message has not been opened first                    
                ReadMessagesL(KMsvGlobalInBoxIndexEntryId);                    
                }                
            else                    
                {                    
                // if ReadMessagesL() is called, this command is given from there                    
                // i.e. now we have to do it manually                    
                HandleCommandL(EMMSDemo1CmdListBoxSelect);                    
                }
            break;

        // User pressed "Select" on the listbox
        // Here we check the function id that was set before opening the list
        case EMMSDemo1CmdListBoxSelect:
            if(iListOpen)
                {
                iListIndex = iContainer->KillTheListboxL();
                iFormReply = 1;
                iListOpen = EFalse;
                }
            switch(iFunctionId)
                {
                case 1:
                    OpenMessageL();
                    break;
                case 2:
                    DeleteMessagesL(KMsvGlobalInBoxIndexEntryId);
                    break;
                case 3:
                    DeleteMessagesL(KMsvDraftEntryId);
                    break;
                case 4:
                    ForwardL();
                    break;
                case 5:
                    ReplyL();
                    break;
                default:
                    break;
                }
            break;

            // User pressed "Cancel" on the listbox
        case EMMSDemo1CmdListBoxCancel:
            iListIndex = -1; // when cancelling, ignore the reply value
            iContainer->KillTheListboxL();
            iFormReply = 0;
            iListOpen = EFalse;
            iFunctionId = 0; 
            break;


        case EMMSDemo1CmdOpenURL:
            // Open URL in WAP browser

            // Parameters are separated by space
            // 1st parameter: type of the further parameters
            // 2nd parameter: URL
            // Note: Set 4 as the first parameter, specify that second parameter will be an URL
            param->Des().Append('4');
            param->Des().Append(' ');
            param->Des().Append(iUrl);                        
            
            if ( task.Exists() )
                {
                HBufC8* param8 = HBufC8::NewLC( param->Length() );
                param8->Des().Append( *param );
                task.SendMessage( TUid::Uid( 0 ), *param8 ); // Uid is not used
                CleanupStack::PopAndDestroy();
                }
            else 
                {
                RApaLsSession appArcSession;
                User::LeaveIfError(appArcSession.Connect()); // connect to AppArc server
                TThreadId id;
                appArcSession.StartDocument( *param, TUid::Uid( KWmlBrowserUid ), id );
                appArcSession.Close();
                }
            
            break; // EMMSDemo1CmdOpenURL

        default:
            break;      
        }

    CleanupStack::PopAndDestroy(param); // param  

    // setting the navi pane back to normal
    if(iFunctionId == 0)
        {
        iNaviPane->Pop();
        delete iNaviDecorator;
        TResourceReader reader;
	    iCoeEnv->CreateResourceReaderLC(reader,	R_MMSDEMO1_NAVI_MAIN);
	    iNaviDecorator = iNaviPane->CreateNavigationLabelL(reader);
	    CleanupStack::PopAndDestroy();  // resource reader
	    iNaviPane->PushL(*iNaviDecorator);
        }

    // Check if any new messages have arrived in Inbox
    if( iMmsEngine->NewMessages() > 0 )
        {
        _LIT(KNewMessages,"You have new messages.");
	    // Display a Note
	    CAknGlobalNote* globalNote = CAknGlobalNote::NewLC();
	    globalNote->ShowNoteL(EAknGlobalInformationNote  , KNewMessages); 
	    CleanupStack::PopAndDestroy();
        }
    }

// ----------------------------------------------------
// CMMSDemo1AppUi::SendMessageL()
// ?implementation_description
// ----------------------------------------------------
//
void CMMSDemo1AppUi::SendMessageL()
    { 
// --- Create new message ---

    if(!iMmsEngine->MessageReady()) // Check if message body has already been created.
        {                           // After WriteMessageL() this is not he case and 
                                    // message has to be created here.
        // assume info has been checked in the form,
        // Create new message
        iMmsEngine->CreateMessageL();
        }

    if(!iForward) // forward message already has URL and Description parts
        {
        // parse url & description
        TBuf<KAttachmentTextLimit> text;
        text.Append( iUrl ); 
        text.Append(_L(";"));   // field separator
        text.Append( iDesc );