/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

 *   with this work for additional information regarding copyright

 *   ownership. The ASF licenses this file to you under the Apache

 *   License, Version 2.0 (the "License"); you may not use this file

 *   except in compliance with the License. You may obtain a copy of

 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .

 */

#include <basecontainercontrol.hxx>

#include <cppuhelper/queryinterface.hxx>

#include <cppuhelper/typeprovider.hxx>

#include <com/sun/star/container/ContainerEvent.hpp>

#include <com/sun/star/container/XContainerListener.hpp>

#include <com/sun/star/awt/XControlContainer.hpp>

//  namespaces

using namespace ::cppu;

using namespace ::osl;

using namespace ::com::sun::star::uno;

using namespace ::com::sun::star::lang;

using namespace ::com::sun::star::awt;

using namespace ::com::sun::star::container;

namespace unocontrols {

//  construct/destruct

BaseContainerControl::BaseContainerControl( const Reference< XComponentContext >& rxContext )

    : BaseContainerControl_BASE(rxContext)

    , m_aListeners  ( m_aMutex  )

{

}

BaseContainerControl::~BaseContainerControl()

{

}

//  XControl

void SAL_CALL BaseContainerControl::createPeer( const   Reference< XToolkit >&      xToolkit    ,

                                                const   Reference< XWindowPeer >&   xParent     )

{

    if ( getPeer().is() )

        return;

    // create own peer

    BaseControl::createPeer( xToolkit, xParent );

    // create peers at all children

    Sequence< Reference< XControl > >   seqControlList  = getControls();

    for ( auto& rxControl : asNonConstRange(seqControlList) )

    {

        rxControl->createPeer( xToolkit, getPeer() );

    }

}

//  XControl

sal_Bool SAL_CALL BaseContainerControl::setModel( const Reference< XControlModel >& )

{

    // This object has NO model.

    return false;

}

//  XControl

Reference< XControlModel > SAL_CALL BaseContainerControl::getModel()

{

    // This object has NO model.

    // return (XControlModel*)this;

    return Reference< XControlModel >();

}

//  XComponent

void SAL_CALL BaseContainerControl::dispose()

{

    // Tell everything that this container is now gone.

    // It's faster if you listen to both the control and the container.

    // Ready for multithreading

    MutexGuard aGuard( m_aMutex );

    // remove listeners

    EventObject aObject;

    aObject.Source.set( static_cast<XControlContainer*>(this), UNO_QUERY );

    m_aListeners.disposeAndClear( aObject );

    // remove controls

    const Sequence< Reference< XControl > >   seqCtrls    =   getControls();

    maControlInfoList.clear();

    for ( Reference< XControl > const & control : seqCtrls )

    {

        control->removeEventListener    ( static_cast< XEventListener* >( static_cast< XWindowListener* >( this ) ) );

        control->dispose                (       );

    }

    // call baseclass

    BaseControl::dispose();

}

//  XEventListener

void SAL_CALL BaseContainerControl::disposing( const EventObject& rEvent )

{

    Reference< XControl > xControl( rEvent.Source, UNO_QUERY );

    // "removeControl" remove only, when control is an active control

    removeControl( xControl );

}

//  XControlContainer

void SAL_CALL BaseContainerControl::addControl ( const OUString& rName, const Reference< XControl > & rControl )

{

    if ( !rControl.is () )

        return;

    // take memory for new item

    IMPL_ControlInfo aNewControl;

    // Ready for multithreading

    MutexGuard aGuard (m_aMutex);

    // set control

    aNewControl.sName      = rName;

    aNewControl.xControl   = rControl;

    // and insert in list

    maControlInfoList.emplace_back( aNewControl );

    // initialize new control

    aNewControl.xControl->setContext       (getXWeak());

    aNewControl.xControl->addEventListener ( static_cast< XEventListener* >( static_cast< XWindowListener* >( this ) ) );

    // when container has a peer...

    if (getPeer().is())

    {

        // ... then create a peer on child

        aNewControl.xControl->createPeer ( getPeer()->getToolkit(), getPeer() );

    }

    // Send message to all listener

    comphelper::OInterfaceContainerHelper2* pInterfaceContainer = m_aListeners.getContainer( cppu::UnoType<XContainerListener>::get());

    if (!pInterfaceContainer)

        return;

    // Build event

    ContainerEvent  aEvent;

    aEvent.Source   = *this;

    aEvent.Element <<= rControl;

    // Get all listener

    comphelper::OInterfaceIteratorHelper2  aIterator (*pInterfaceContainer);

    // Send event

    while ( aIterator.hasMoreElements() )

    {

        static_cast<XContainerListener*>(aIterator.next())->elementInserted (aEvent);

    }

}

//  XControlContainer

void SAL_CALL BaseContainerControl::removeControl ( const Reference< XControl > & rControl )

{

    if ( !rControl.is() )

        return;

    // Ready for multithreading

    MutexGuard aGuard (m_aMutex);

    // Search for right control

    auto it = std::find_if(maControlInfoList.begin(), maControlInfoList.end(),

        [&rControl](const IMPL_ControlInfo& control)

        { return rControl == control.xControl; });

    // if not found

    if ( it == maControlInfoList.end() )

        return;

    // remove listener from control

    it->xControl->removeEventListener (static_cast< XEventListener* >( static_cast< XWindowListener* >( this ) ));

    it->xControl->setContext          ( Reference< XInterface >  ()   );

    // ... free memory

    maControlInfoList.erase(it);

    // Send message to all other listener

    comphelper::OInterfaceContainerHelper2 * pInterfaceContainer = m_aListeners.getContainer( cppu::UnoType<XContainerListener>::get());

    if (pInterfaceContainer)

    {

        ContainerEvent  aEvent;

        aEvent.Source    = *this;

        aEvent.Element <<= rControl;

        comphelper::OInterfaceIteratorHelper2 aIterator (*pInterfaceContainer);

        while ( aIterator.hasMoreElements() )

        {

            static_cast<XContainerListener*>(aIterator.next())->elementRemoved (aEvent);

        }

    }

}

//  XControlContainer

void SAL_CALL BaseContainerControl::setStatusText ( const OUString& rStatusText )

{

    // go down to each parent

    Reference< XControlContainer >  xContainer ( getContext(), UNO_QUERY );

    if ( xContainer.is () )

    {

        xContainer->setStatusText ( rStatusText );

    }

}

//  XControlContainer

Reference< XControl > SAL_CALL BaseContainerControl::getControl ( const OUString& rName )

{

    // Ready for multithreading

    MutexGuard  aGuard ( Mutex::getGlobalMutex() );

    // Search for right control

    for( const IMPL_ControlInfo& rSearchControl : maControlInfoList )

    {

        if ( rSearchControl.sName == rName )

        {

            // We have found it ...

            // Break operation and return.

            return rSearchControl.xControl;

        }

    }

    // We have not found it ... return NULL.

    return Reference< XControl >  ();

}

//  XControlContainer

Sequence< Reference< XControl > > SAL_CALL BaseContainerControl::getControls ()

{

    // Ready for multithreading

    MutexGuard  aGuard ( Mutex::getGlobalMutex() );

    size_t                              nControls       = maControlInfoList.size();

    size_t                              nCount          = 0;

    Sequence< Reference< XControl > >   aDescriptor     ( nControls );

    Reference< XControl > *             pDestination    = aDescriptor.getArray ();

    // Copy controls to sequence

    for( const IMPL_ControlInfo& rCopyControl : maControlInfoList )

    {

        pDestination [ nCount++ ] = rCopyControl.xControl;

    }

    // Return sequence

    return aDescriptor;

}

//  XWindow

void SAL_CALL BaseContainerControl::setVisible ( sal_Bool bVisible )

{

    // override baseclass definition

    BaseControl::setVisible ( bVisible );

    // is it a top window ?

    if ( !getContext().is() && bVisible )

    {

        // then show it automatically

        createPeer ( Reference< XToolkit > (), Reference< XWindowPeer > () );

    }

}

//  protected method

WindowDescriptor BaseContainerControl::impl_getWindowDescriptor ( const Reference< XWindowPeer > & rParentPeer )

{

    WindowDescriptor aDescriptor;

    aDescriptor.Type               = WindowClass_CONTAINER;

    aDescriptor.WindowServiceName  = "window";

    aDescriptor.ParentIndex        = -1;

    aDescriptor.Parent             = rParentPeer;

    aDescriptor.Bounds             = getPosSize ();

    aDescriptor.WindowAttributes   = 0;

    return aDescriptor;

}

//  protected method

void BaseContainerControl::impl_paint ( sal_Int32 /*nX*/, sal_Int32 /*nY*/, const Reference< XGraphics > & /*rGraphics*/ )

{

}

} // namespace unocontrols

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