/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbWidgets module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser General Public

** License version 2.1 as published by the Free Software Foundation and

** appearing in the file LICENSE.LGPL included in the packaging of this file.

** Please review the following information to ensure the GNU Lesser General

** Public License version 2.1 requirements will be met:

** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#include <hbdevicedialogsymbian.h>

#include <hbsymbianvariant.h>

#include <hbdeleteguardsymbian_p.h>

#include "hbdeviceprogressdialogsymbian.h"

_LIT(KDialogType, "progressDialogType");

_LIT(KDialogMaximum, "maximum");

_LIT(KDialogMinimum, "minimum");

_LIT(KDialogValue, "value");

_LIT(KDialogAutoClose, "autoClose");

_LIT(KDialogText, "text");

_LIT(KDialogIconName, "iconName");

_LIT(KCancelAction, "cancelAction");

_LIT(KPluginIdentifier, "com.nokia.hb.deviceprogressdialog/1.0");

_LIT(KAnimationDefinition, "animationDefinition");

NONSHARABLE_CLASS(CHbDeviceProgressDialogSymbianPrivate) : public CBase,

                                                           public MHbDeviceDialogObserver

{

public:

    CHbDeviceProgressDialogSymbianPrivate();

    virtual ~CHbDeviceProgressDialogSymbianPrivate();

    void ShowL();

    void UpdateL();

    void Close();

    bool Visible() const;

    void AddVariantL(const TDesC& aKey, const TAny* aData,

            CHbSymbianVariant::TType aDataType, CHbSymbianVariantMap* map);

    const CHbSymbianVariant* Variant(const TDesC& aKey) const;

    static HBufC *CreateActionDataLC(TBool aNull, const TDesC &text);

public: // MHbDeviceDialogObserver

    void DataReceived(CHbSymbianVariantMap& aData);

    void DeviceDialogClosed(TInt aCompletionCode);

public: // data

    void ConstructL(CHbDeviceProgressDialogSymbian* aDialog);

    MHbDeviceProgressDialogObserver* iObserver;

    CHbDeviceDialogSymbian *iDeviceDialog;

    CHbSymbianVariantMap* iVariantMap;

    CHbDeviceProgressDialogSymbian* q;

    TBool iVisible;

    TInt iMinimum;

    TInt iMaximum;

    TBool iAutoClose;

    TInt iType;

    TInt iProgressValue;

    RBuf iText;

    RBuf iIconName;

    RBuf iAnimationDefinition;

    struct {

        RBuf iText;

        struct {

            bool iTextValid:1; // property value has has been set

            bool iTextModified:1; // property has been modified

            bool iIsNull:1; // button is null

            bool iIsNullValid:1;

            bool iIsNullModified:1;

            bool iPressed:1; // true is button was pressed

        } iFlags;

    } iButton;

    bool *iDeleted;

};

CHbDeviceProgressDialogSymbianPrivate::CHbDeviceProgressDialogSymbianPrivate()

    {

    }

CHbDeviceProgressDialogSymbianPrivate::~CHbDeviceProgressDialogSymbianPrivate()

    {

    iText.Close();

    iIconName.Close();

    iAnimationDefinition.Close();

    iButton.iText.Close();

    delete iDeviceDialog;

    delete iVariantMap;

    // Set object deleted flag

    if (iDeleted)

        {

        // Mark the object as deleted.

        *iDeleted = true;

        iDeleted = 0;

        }

    }

void CHbDeviceProgressDialogSymbianPrivate::ConstructL(

    CHbDeviceProgressDialogSymbian* aDialog)

    {

    q = aDialog;

    iDeviceDialog = CHbDeviceDialogSymbian::NewL();

    iVariantMap = CHbSymbianVariantMap::NewL();

    iText.Create(KNullDesC);

    iIconName.Create(KNullDesC);

    iAnimationDefinition.Create(KNullDesC);

    iButton.iText.Create(KNullDesC);

    }

void CHbDeviceProgressDialogSymbianPrivate::ShowL()

    {

    AddVariantL(KDialogType, &iType, CHbSymbianVariant::EInt, iVariantMap);

    AddVariantL(KDialogMaximum, &iMaximum, CHbSymbianVariant::EInt, iVariantMap);

    AddVariantL(KDialogMinimum, &iMinimum, CHbSymbianVariant::EInt, iVariantMap);

    AddVariantL(KDialogAutoClose, &iAutoClose, CHbSymbianVariant::EBool, iVariantMap);

    AddVariantL(KDialogValue, &iProgressValue, CHbSymbianVariant::EInt, iVariantMap);

    if (iText.Length() > 0)

        {

        AddVariantL(KDialogText, &iText, CHbSymbianVariant::EDes, iVariantMap);

        }

    if (iIconName.Length() > 0)

        {

        AddVariantL(KDialogIconName, &iIconName, CHbSymbianVariant::EDes, iVariantMap);

        }

    if (iAnimationDefinition.Length() > 0)

        {

        AddVariantL(KAnimationDefinition, &iAnimationDefinition, CHbSymbianVariant::EDes, iVariantMap);

        }

    if (iButton.iFlags.iTextValid || iButton.iFlags.iIsNullValid)

        {

        iButton.iFlags.iTextModified = false;

        iButton.iFlags.iIsNullModified = false;

        HBufC *actionData = CreateActionDataLC(iButton.iFlags.iIsNull, iButton.iText);

        AddVariantL(KCancelAction, actionData, CHbSymbianVariant::EDes, iVariantMap);

        CleanupStack::PopAndDestroy(); // actionData

        }

    iButton.iFlags.iPressed = false;

    TInt error = iDeviceDialog->Show(KPluginIdentifier, *iVariantMap, this);

    if (error != KErrNone) {

        User::Leave(error); // error can be positive or negative

    }

    iVisible = ETrue;

    }

void CHbDeviceProgressDialogSymbianPrivate::Close()

    {

    iDeviceDialog->Cancel();

    }

void CHbDeviceProgressDialogSymbianPrivate::UpdateL()

    {

    CHbSymbianVariantMap* map = CHbSymbianVariantMap::NewL();

    const CHbSymbianVariant* variant = Variant(KDialogMaximum);

    if (variant && *variant->Value<TInt>() != iMaximum)

        {

        AddVariantL(KDialogMaximum, &iMaximum, CHbSymbianVariant::EInt, iVariantMap);

        AddVariantL(KDialogMaximum, &iMaximum, CHbSymbianVariant::EInt, map);

        }

    variant = Variant(KDialogMinimum);

    if (variant && *variant->Value<TInt>() != iMinimum)

        {

        AddVariantL(KDialogMinimum, &iMinimum, CHbSymbianVariant::EInt, iVariantMap);

        AddVariantL(KDialogMinimum, &iMinimum, CHbSymbianVariant::EInt, map);

        }

    variant = Variant(KDialogAutoClose);

    if (variant && *variant->Value<TBool>() != iAutoClose)

        {

        AddVariantL(KDialogAutoClose, &iAutoClose, CHbSymbianVariant::EInt, iVariantMap);

        AddVariantL(KDialogAutoClose, &iAutoClose, CHbSymbianVariant::EInt, map);

        }

    variant = Variant(KDialogType);

    if (variant && *variant->Value<TInt>() != iType)

        {

        AddVariantL(KDialogType, &iType, CHbSymbianVariant::EInt, iVariantMap);

        AddVariantL(KDialogType, &iType, CHbSymbianVariant::EInt, map);

        }

    variant = Variant(KDialogValue);

    if (variant && *variant->Value<TInt>() != iProgressValue)

        {

        AddVariantL(KDialogValue, &iProgressValue, CHbSymbianVariant::EInt, iVariantMap);

        AddVariantL(KDialogValue, &iProgressValue, CHbSymbianVariant::EInt, map);

        }

    variant = Variant(KDialogText);

    if (variant && iText == *variant->Value<TDesC>())

        {

        AddVariantL(KDialogText, &iText, CHbSymbianVariant::EDes, iVariantMap);

        AddVariantL(KDialogText, &iText, CHbSymbianVariant::EDes, map);

        }

    variant = Variant(KDialogIconName);

    if (variant && iIconName == *variant->Value<TDesC>())

        {

        AddVariantL(KDialogIconName, &iIconName, CHbSymbianVariant::EDes, iVariantMap);

        AddVariantL(KDialogIconName, &iIconName, CHbSymbianVariant::EDes, map);

        }

    variant = Variant(KAnimationDefinition);

    if (variant && iAnimationDefinition == *variant->Value<TDesC>())

        {

        AddVariantL(KAnimationDefinition, &iAnimationDefinition, CHbSymbianVariant::EDes, iVariantMap);

        AddVariantL(KAnimationDefinition, &iAnimationDefinition, CHbSymbianVariant::EDes, map);

        }

    if (iButton.iFlags.iTextModified || iButton.iFlags.iIsNullModified)

        {

        iButton.iFlags.iTextModified = false;

        iButton.iFlags.iIsNullModified = false;

        HBufC *actionData = CreateActionDataLC(iButton.iFlags.iIsNull, iButton.iText);

        AddVariantL(KCancelAction, actionData, CHbSymbianVariant::EDes, iVariantMap);

        CleanupStack::PopAndDestroy(); // actionData

        }

    TInt error = iDeviceDialog->Update(*map);

    delete map; map = 0;

    if (error != KErrNone) {

        User::Leave(error); // error can be positive or negative

    }

    }

void CHbDeviceProgressDialogSymbianPrivate::DataReceived(CHbSymbianVariantMap& aData)

    {

    _LIT(KKey, "act");

    const CHbSymbianVariant* variant = aData.Get(KKey);

    if (variant)

        {

        const TDesC *value = variant->Value<const TDesC>();

        _LIT(KCancel, "c");

        if (value && *value == KCancel)

            {

            iButton.iFlags.iPressed = true;

            if (iObserver)

                {

                iObserver->ProgressDialogCancelled(q);

                // Don't touch this object anymore, observer callback may have deleted it.

                }

            }

        }

    }

void CHbDeviceProgressDialogSymbianPrivate::DeviceDialogClosed(TInt /*aCompletionCode*/)

    {

    // Send closed signal if the device dialog has been actually shown, as it is possible

    // to create and cancel a device dialog without showing it at all.

    if (iVisible)

        {

        iVisible = EFalse;

        if (iObserver)

            {

            iObserver->ProgressDialogClosed(q);

            // Don't touch this object anymore, observer callback may have deleted it.

            }

        }

    }

void CHbDeviceProgressDialogSymbianPrivate::AddVariantL(

    const TDesC& aKey,

    const TAny* aData,

    CHbSymbianVariant::TType aDataType,

    CHbSymbianVariantMap* map

    )

    {

    CHbSymbianVariant *variant = CHbSymbianVariant::NewL(aData, aDataType);

    CleanupStack::PushL(variant);

    User::LeaveIfError(map->Add(aKey, variant));

    CleanupStack::Pop(variant);

    }

const CHbSymbianVariant* CHbDeviceProgressDialogSymbianPrivate::Variant(const TDesC& aKey) const

    {

    return iVariantMap->Get(aKey);

    }

// Pack into a string a data for cancel button

HBufC *CHbDeviceProgressDialogSymbianPrivate::CreateActionDataLC(TBool aNull, const TDesC &text)

{

    HBufC *actionData;

    if (aNull)

        {

        actionData = HBufC::NewL(0);

        }

    else

        {

        _LIT(KtextTag, "t:");

        actionData = HBufC::NewL(text.Length() + KtextTag().Length());

        TPtr ptr = actionData->Des();

        ptr.Append(KtextTag);

        ptr.Append(text);

        }

    CleanupStack::PushL(actionData);

    return actionData;

}

/*!

    \class MHbDeviceProgressDialogObserver

    \brief MHbDeviceProgressDialogObserver is an observer interface for observing CHbDeviceProgressDialogSymbian.

*/

/*!

    \fn void MHbDeviceProgressDialogObserver::ProgressDialogCancelled(const CHbDeviceProgressDialogSymbian* aDialog) = 0

    This callback is called when the device progress dialog is closed by user pressing the "cancel" button.

    \a aDialog - Pointer to dialog that was cancelled.

*/

/*!

   \fn void MHbDeviceProgressDialogObserver::ProgressDialogClosed(const CHbDeviceProgressDialogSymbian* aDialog) = 0

    This callback is called when a device progress dialog is has closed. The closing may

    be a result of Close() being called, a dialog with autoClose property has reached

    its maximum value or user pressing cancel button. It is not called if Close() is

    called before ShowL().

    \a aDialog - Pointer to dialog instance that has closed.

*/

/*!

    \class CHbDeviceProgressDialogSymbian

    \brief CHbDeviceProgressDialogSymbian is a Symbian implementation of HbDeviceProgressDialog.

    It is a client interface for s60 native application to notify user with a text message, icon

    and progress bar, when HbDeviceProgressDialog can not be used.

    CHbDeviceProgressDialogSymbian provides similar interface and functionality as HbDeviceProgressDialog.

    Main difference is that signals are replaced by observer interface. Also the parameters of methods using Qt enumerations are changed to TInt.

    Two progress dialog types are supported: wait and progress dialog.

    Wait dialog can be used when the progress of operation cannot be determined.

    As the delay is unknown, the waiting progress bar will be shown until either a user

    cancels the dialog by pressing the "cancel" button or the application showing the device

    wait dialog closes the dialog after the operation has finished or in case of timeout.

    Progress dialog can be used when the progress of operation is known. For example

    when deleting a number of files, the progress of the operation could be shown as a

    percentage of the files deleted. Application sets the progress value during the

    operation and the dialog will be shown until either a user cancels the dialog by pressing

    the "cancel" button or the application showing the device progress dialog closes the

    dialog after the operation is finished or in case of error.

    Progress dialogs are always asynchronous by nature as the client is responsible of updating the dialog

    according to current progress status.

    The device dialog is only shown when ShowL() is called. Because each dialog update requires

    IPC calls to be made, it's advisable to fully construct the device dialog before calling

    ShowL() or UpdateL().

    Here is an example of using the infinite wait note:

    \code

    _LIT(KConnectText, "Connecting...");

    CHbDeviceProgressDialogSymbian *iDialog = CHbDeviceProgressDialogSymbian::NewL(CHbDeviceProgressDialogSymbian::EWaitDialog);

    iDialog->SetTextL(KConnectText);

    iDialog->ShowL();

    \endcode

    Below is an example of using the device progress dialog:

    \code

    CHbDeviceProgressDialogSymbian* iDialog = CHbDeviceProgressDialogSymbian::NewL();

    _LIT(KUpdatingText, "Updating...");

    iDialog->SetTextL(KUpdatingText);

    iDialog->ShowL();

    iDialog->SetMinimum(1);

    iDialog->SetMaximum(76);

    iDialog->SetProgressValue(25);

    iDialog->UpdateL();

    \endcode

    CHbDeviceProgressDialogSymbian supports animations.

    Supported formats are the following:

    - GIF (.gif)

    - MNG (.mng)

	- Frame animations

	There is a built-in support for GIF and MNG animations.

	Frame animations can be created by following way:

	\code

	Create an animation definition file.

	<animations>

		<icon name="frame_anim_looping" playmode="loop">

			<frame duration="100">c:\icon1.svg</frame>

			<frame duration="200">c:\icon2.svg</frame>

			<frame duration="300">c:\icon3.svg</frame>

		</icon>

	</animations>

	Create CHbDeviceProgressDialogSymbian in a way described before and

	set definition file and animation's logical name.

	_LIT(KAnimationDefinitionXML, "C:\animation.axml");

	_LITK(KLogicalIconName, "frame_anim_looping");

	iDialog->SetAnimationDefinitionL(KAnimationDefinitionXML);

	iDialog->SetIconNameL(KIconName);

	iDialog->ShowL();

	\endcode

	\sa HbIconAnimationManager::addDefinitionFile

	\note Animation definition files must be stored to a place where they

	can be accessed.

    \sa HbDeviceProgressDialog, HbDeviceDialog

    \stable

    \hbwidgets

*/

/*!

    \enum CHbDeviceProgressDialogSymbian::TType

    Progress dialog types.

*/

/*!

    \var CHbDeviceProgressDialogSymbian::TType CHbDeviceProgressDialogSymbian::EProgressDialog

    Progress dialog.

*/

/*!

    \var CHbDeviceProgressDialogSymbian::TType CHbDeviceProgressDialogSymbian::EWaitDialog

    Wait dialog.

*/

/*!

    Symbian two phase constructor. Returns a pointer to CHbDeviceNotificationDialogSymbian instance.

    \param aType Must be one of the defined CHbDeviceProgressDialogSymbian::TType enumerations.

    \param aObserver Pointer to observer.

    Default value is CHbDeviceProgressDialogSymbian::EProgressDialog.

*/

EXPORT_C CHbDeviceProgressDialogSymbian* CHbDeviceProgressDialogSymbian::NewL(

    TType aType,

    MHbDeviceProgressDialogObserver* aObserver)

    {

    CHbDeviceProgressDialogSymbian* self = new (ELeave) CHbDeviceProgressDialogSymbian();

    CleanupStack::PushL(self);

    self->ConstructL(aType);

    self->SetObserver(aObserver);

    CleanupStack::Pop(self);

    return self;

    }

/*!

    Destructs the class.

*/

EXPORT_C CHbDeviceProgressDialogSymbian::~CHbDeviceProgressDialogSymbian()

    {

    delete d;

    }

/*!

    Executes the dialog asynchronously.

*/

EXPORT_C void CHbDeviceProgressDialogSymbian::ShowL()

    {

    d->ShowL();

    }

/*!

    Updates the dialog asynchronously.

*/

EXPORT_C void CHbDeviceProgressDialogSymbian::UpdateL()

    {

    d->UpdateL();

    }

/*!

    Closes the dialog.

*/

EXPORT_C void CHbDeviceProgressDialogSymbian::Close()

    {

    d->Close();

    }

/*!

    Sets the minimum and maximum value of the progress bar within the dialog.

    \param aMin minimum value of the progress bar.

    \param aMax maximum value of the progress bar.

    \sa Minimum(), Maximum()

*/

EXPORT_C void CHbDeviceProgressDialogSymbian::SetRange(TInt aMin, TInt aMax)

    {

    SetMinimum(aMin);

    SetMaximum(aMax);

    }

/*!

    Sets the maximum value of the progress bar within the dialog.

    \param aMax maximum value of the progress bar.

    \sa Maximum()

*/

EXPORT_C void CHbDeviceProgressDialogSymbian::SetMaximum(TInt aMax)

    {

    // Don't allow wait dialog to set max/min other than zero as wait

    // animation bar doesn't work in that case.

    d->iMaximum = d->iType == EWaitDialog ? 0 : aMax;