/*

* Copyright (c) 2007 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:  CFsEmailUiHtmlViewerView class definition

*

*/

#ifndef __FREESTYLEEMAILUI_HTML_VIEWER_VIEW_H__

#define __FREESTYLEEMAILUI_HTML_VIEWER_VIEW_H__

#include <cstack.h>

#include "mfsmailrequestobserver.h"

#include "mesmricalviewercallback.h"

#include "mesmricalviewerobserver.h"

#include "FreestyleEmailUiViewBase.h"

#include "FreestyleEmailUiConstants.h"

#include "FreestyleEmailUiContactHandlerObserver.h"

#include "FreestyleEmailUiAttachmentsListModel.h"

#include <AknWaitDialog.h>

#include "FreestyleEmailDownloadInformationMediator.h"

#include "FreestyleEmailUiControlBarCallback.h"

class CFSMailMessage;

class CFreestyleEmailUiAppUi;

class CFsEmailUiHtmlViewerContainer;

class CFreestyleMessageHeaderURL;

class CAknWaitDialog; //<cmail>

class CFlagSelectionNoteHandler;

class CAknGlobalListQuery;

class CAknGlobalNote;

/**

 * Html viewer view.

 */

class CFsEmailUiHtmlViewerView : public CFsEmailUiViewBase,

        public MFSEmailUiContactHandlerObserver,

        public MFSEmailUiAttachmentsStatusObserver,

        public MFSEmailDownloadInformationObserver,

        public MFSMailRequestObserver,

        public MProgressDialogCallback,

		public MFSEmailUiFolderListCallback,

		public MESMRIcalViewerCallback,

    	public MESMRIcalViewerObserver

    {

public:

    /** Two-phased constructor. */

    static CFsEmailUiHtmlViewerView* NewL( CAlfEnv& aEnv, 

                                           CFreestyleEmailUiAppUi& aAppUi,

                                           CAlfControlGroup& aControlGroup );

    /** Destructor. */

    ~CFsEmailUiHtmlViewerView();

public:  // from CAknView

    /**

    * Id

    * @return Id Uid value

    */

    TUid Id() const;

    void HandleStatusPaneSizeChange();

    void HandleViewRectChange();

    /**

    * HandleCommandL

    * From CAknView, takes care of command handling.

    * @param aCommand Command to be handled

    */

    void HandleCommandL( TInt aCommand );

    // Handle accept/decline/tentative/remove commands given for meeting request message directly from list UI.

	void HandleMrCommandL( TInt aCommandId, TFSMailMsgId aMailboxId, TFSMailMsgId aFolderId, TFSMailMsgId aMessageId );

	void CompletePendingMrCommand();

	void CancelPendingMrCommandL();

    /**

    * ChildDoDeactivate

    * From CFsEmailUiViewBase, deactivate the AknView

    * Remove the container class instance from the App UI's stack and

    * deletes the instance

    */

    void ChildDoDeactivate();

    /**

    * DoExitL

    * Handler called when exiting the view.

    */

    void DoExitL();

    void DynInitMenuPaneL( TInt aResourceId, CEikMenuPane* aMenuPane );

    void SetMskL();

    void PrepareForExit();

public : // for MFSMailRequestObserver

    void RequestResponseL( TFSProgress aEvent, TInt aRequestId );

public: 

    // from MProgressDialogCallback

    void DialogDismissedL( TInt aButtonId);

    CFSMailMessage* CurrentMessage();

    CFSEmailUiAttachmentsListModel* CurrentAttachmentsListModel();

    // Return view area that can be used for container

    TRect ContainerRect() const;

public: 

    void HandleDynamicVariantSwitchL( CFsEmailUiViewBase::TDynamicSwitchType aType );

    void HandleMailBoxEventL( TFSMailEvent aEvent,

                              TFSMailMsgId aMailbox, TAny* aParam1, TAny* /*aParam2*/, TAny* /*aParam3*/ );

    void HandleEmailAddressCommandL( TInt aCommand, const TDesC& aEmailAddress ); 

    void HandleWebAddressCommandL( TInt aCommand, const TDesC& aUrl );

    void DownloadAttachmentL( const TAttachmentData& aAttachment );

    void DownloadAllAttachmentsL();

    void CancelAttachmentL( const TAttachmentData& aAttachment );    

    void OpenAttachmentL( const TAttachmentData& aAttachment );

    void SaveAttachmentL( const TAttachmentData& aAttachment );

    void SaveAllAttachmentsL();

    void RemoveAttachmentContentL( const TAttachmentData& aAttachment );

    void OpenAttachmentsListViewL();

    TBool IsEmbeddedMsgView();

    TBool IsEmbeddedMsgSavingAllowed();

    // Helper funcitons to get viewed message ID and Folder id

    TFSMailMsgId ViewedMessageFolderId();

    TFSMailMsgId ViewedMessageId(); 

    TBool GetAsyncFetchStatus();

    void StartFetchingMessageL();

    void ReloadPageL();

public: // from MFSEmailUiContactHandlerObserver

    void OperationCompleteL( TContactHandlerCmd aCmd,

                             const RPointerArray<CFSEmailUiClsItem>& aContacts );

    void OperationErrorL( TContactHandlerCmd, TInt aError );

    TBool IsRemoteLookupSupportedL();

public : // from MFSEmailDownloadInformationObserver

    void RequestResponseL( const TFSProgress& aEvent, const TPartData& aPart );

public: // from MFSEmailUiAttachmentsStatusObserver

    void DownloadStatusChangedL( TInt aIndex );

public: // from MESMRIcalViewerCallback

    void ProcessAsyncCommandL( TESMRIcalViewerOperationType aCommandId,	const CFSMailMessage& aMessage, MESMRIcalViewerObserver* aObserver = NULL );   

	  void ProcessSyncCommandL( TESMRIcalViewerOperationType aCommandId, const CFSMailMessage& aMessage );   

    TBool CanProcessCommand( TESMRIcalViewerOperationType aCommandId  ) const;  

public: // from MESMRIcalViewerObserver

    void OperationCompleted( TIcalViewerOperationResult aResult );        

    void OperationError( TIcalViewerOperationResult aResult );

private: // from

    /**

     * @see CFsEmailUiViewBase::ChildDoActivateL

     */

    void ChildDoActivateL( const TVwsViewId& aPrevViewId,

                           TUid aCustomMessageId,

                           const TDesC8& aCustomMessage );

    /**

     * @see CFsEmailUiViewBase::ToolbarResourceId

     */

    TInt ToolbarResourceId() const;

    /**

     * @see CFsEmailUiViewBase::GetInitiallyDimmedItemsL

     */

    virtual void GetInitiallyDimmedItemsL( const TInt aResourceId,

                RArray<TInt>& aDimmedItems ) const;

    /**

     * @see CFsEmailUiViewBase::OfferToolbarEventL

     */

    void OfferToolbarEventL( TInt aCommand );

    /**

     * @see CFsEmailUiViewBase::NavigateBackL

     */ 

    void NavigateBackL();

    /**

	 * @see CFsEmailUiViewBase::SetStatusBarLayout

	 */ 

    void SetStatusBarLayout();

private: // New functions

    // list of different types of content

    enum TFetchedType

        {

        EMessagePlainTextBodyPart = 0,

        EMessageHtmlBodyPart,

        EMessageStructure

        };

    void ClearMailViewer();

    void LoadContentFromFileL( const TDesC& aFileName );

    void LoadContentFromFileL( RFile& aFile );

    void LoadContentFromUrlL( const TDesC& aUrl );

    void LoadContentFromMailMessageL( CFSMailMessage* aMailMessage, TBool aResetScrollPosition =ETrue );

    void DeleteMailL(TBool aSilentDelete = EFalse);

    void HideContainer();

    void ShowContainerL();

    void DynInitZoomMenuL( CEikMenuPane* aMenuPane );

    TInt ZoomLevelIndexL();

    void SetZoomLevelIndexL( TInt aIndex );

    void RestoreZoomLevelL();

    void SaveEmailAsContactL(

        const TDesC& aEmailAddress );

    //new functions for support of HTML viewer

    void CallAdressL( const TDesC& aEmailAddress, TBool aVideoCall );

    void OpenContactDetailsL( const TDesC& aEmailAddress );

    void LaunchRemoteLookupL( const TDesC& aEmailAddress );

    void CreateMessageL( const TDesC& aEmailAddress );

    void UpdateDownloadIndicatorL( const TPartData& aPart, 

                                   const TFSProgress& aEvent );

    //fetching related API

    TBool MessagePartFullyFetchedL( TFetchedType aFetchedContentType ) const;

    void StartFetchingMessagePartL( CFSMailMessage& aMessagePtr,

                                                TFetchedType aFetchedContentType );

    void UpdateMessagePtrL( TFSMailMsgId aNewMailboxId,

                                                            TFSMailMsgId aNewFolderId,

                                                            TFSMailMsgId aNewMessageId );

    void CancelFetchings();

    void StartFetchingMessageStructureL( CFSMailMessage& aMsg );

    TBool MessageStructureKnown( CFSMailMessage& aMsg ) const;

    void StartWaitedFetchingL( TFetchedType aFetchedContentType );

    // Message stack handling. Ownership of message is transferred when succesful.

    void PushMessageL( CFSMailMessage* aMessage, TBool aIsEmbedded );

    CFSMailMessage* PopMessage();

    void EraseMessageStack();

    TBool OpenFolderListForMessageMovingL();

    void ShowPreviousMessageL();

    TBool ShowPreviousMessageMenuInOptions() const;

    void ShowNextMessageL();

    TBool ShowNextMessageMenuInOptions() const;

    void ChangeMsgReadStatusL(TBool aRead, TBool aCmdFromMrui );

    void SetMessageFollowupFlagL();

    void SendEventToAppUiL( TFSMailEvent aEventType );

    // Message is moved and viewer is closed asynchronously after selecting a folder

      // from the move to folder dialog. This is necessary because view swithching is asynchronous.

    static TInt MoveToFolderAndExitL( TAny* aMailViewerVisualiser );

    void FolderSelectedL( TFSMailMsgId aSelectedFolderId,

                          TFSEmailUiCtrlBarResponse aResponse ); 

    void UpdateEmailHeaderIndicators();

    TBool IsOpenedInMRViewerL();

    void CopyCurrentToClipBoardL( const TDesC& aArgument) const;

    void OpenLinkInBrowserL( const TDesC& aUrl) const;

    void SaveWebAddressToFavouritesL( const TDesC& aUrl ) const;

    void SetScrollPosition(TInt aPosition);

    void CheckMessageBodyL( CFSMailMessage& aMessage, TBool& aMessageBodyStructurePresent, TBool& aMessageBodyContentPresent);

private: // Constructors

    void ConstructL();

    CFsEmailUiHtmlViewerView( CAlfEnv& aEnv, 

                              CFreestyleEmailUiAppUi& aAppUi, 

                              CAlfControlGroup& aControlGroup );

private:

    CAlfEnv& iEnv;

    CFsEmailUiHtmlViewerContainer* iContainer;

    CFSMailMessage* iMessage;

    THtmlViewerActivationData iActivationData;

    CFSEmailUiAttachmentsListModel* iAttachmentsListModel;

    // Stack of open messages. Messages are owned by this stack. 

    CStack<CFSMailMessage, ETrue>* iOpenMessages;

    // Stack of embedded messages. Message are NOT owned by this stack. Similar to iOpenMessages

    // but has NULL pointer in slots which correspond non-embedded messages.

    CStack<CFSMailMessage, EFalse>* iEmbeddedMessages;

    TBool iCreateNewMsgFromEmbeddedMsg;

    // <cmail>

    // Temporary mail address for opening editor

    CFSMailAddress* iNewMailTempAddress;

    // </cmail>

    CFSMailBox* iMailBox;

private: // data for moving message to different folder action

    TBool iFetchingMessageStructure;

    TInt iCurrentStructureFetchRequestId;

    TBool iFetchingPlainTextMessageBody;

    TInt iCurrentPlainTextBodyFetchRequestId;

    TBool iFetchingHtmlMessageBody;

    TInt iCurrentHtmlBodyFetchRequestId;

    TFetchedType iStartAsyncFetchType;

    // <cmail>

    // Email forwarding initiated (so don't cancel fetch of message parts

    // during deactivation).

    TBool iForwardingMessage;

    // </cmail>

    // Wait note stuff

    //<cmail>

    //CAknWaitNoteWrapper* iAsyncWaitNote;

    CAknWaitDialog* iWaitDialog;

    CAknWaitDialog* iWaitDialogOpening;

    TBool iDialogNotDismissed;

    //</cmail>

    TBool iFetchingAlready;

    TBool iAsyncProcessComplete;

    CActiveSchedulerWait iWait;

	TBool iMoveToFolderOngoing;

    TBool iMovingMeetingRequest;

    CAsyncCallBack* iAsyncCallback;

    TFSMailMsgId iMoveDestinationFolder;  

    	// Meeting request observer stuff.

		// Pointer to observer to inform, not owned.

		MESMRIcalViewerObserver* iMrObserverToInform;

		MESMRIcalViewerObserver::TIcalViewerOperationResult iOpResult;

		TBool iMrUiActive;

	  //<cmail>

    // Message pointer to a deleted mail from Mrui

    TFSMailMsgId iDeletedMessageFromMrui;

    // Flag selection handler active object for global note

    CFlagSelectionNoteHandler* iFlagSelectionHandler;  

    TBool iNextOrPrevMessageSelected;

    };

////////////////////////////////////////

// FLAG selection dialog global note handler

/////////////////////////////////////////

class CFlagSelectionNoteHandler : public CActive

    {

    public:  // Constructors and destructor

        static CFlagSelectionNoteHandler* NewL( CFsEmailUiHtmlViewerView& aViewerVisualiser );

        virtual ~CFlagSelectionNoteHandler();

        void Cancel();       

        void LaunchFlagListQueryDialogL();       

    private: 

        void RunL();       

        void DoCancel();       

        TInt RunError( TInt aError );

    private:

        CFlagSelectionNoteHandler(  CFsEmailUiHtmlViewerView& aVoIPDialogObserver );

    private:      

        CFsEmailUiHtmlViewerView& iViewerView;

        CAknGlobalListQuery* iGlobalFlagQuery;

        HBufC* iPrompt;

        TInt iSelection;

    };

#endif // __FREESTYLEEMAILUI_HTML_VIEW_H__