/* -*- 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 <mediacontrol.hxx>

#include <strings.hrc>

#include <mediamisc.hxx>

#include <avmedia/mediawindow.hxx>

#include <helpids.h>

#include <vcl/weld/weld.hxx>

#include <vcl/weld/Builder.hxx>

#include <avmedia/MediaControlBase.hxx>

#include <com/sun/star/media/ZoomLevel.hpp>

namespace avmedia

{

MediaControl::MediaControl( vcl::Window* pParent, MediaControlStyle eControlStyle ) :

    // MediaControlStyle::MultiLine is the normal docking windows of tools->media player

    // MediaControlStyle::SingleLine is the toolbar of view->toolbar->media playback

    InterimItemWindow(pParent, eControlStyle == MediaControlStyle::MultiLine ?

                                   u"svx/ui/mediawindow.ui"_ustr :

                                   u"svx/ui/medialine.ui"_ustr,

                               u"MediaWindow"_ustr),

    maIdle( "avmedia MediaControl Idle" ),

    maChangeTimeIdle( "avmedia MediaControl Change Time Idle" ),

    maItem( 0, AVMediaSetMask::ALL ),

    mbLocked( false ),

    meControlStyle( eControlStyle )

{

    mxPlayToolBox = m_xBuilder->weld_toolbar(u"playtoolbox"_ustr);

    mxTimeSlider = m_xBuilder->weld_scale(u"timeslider"_ustr);

    mxMuteToolBox = m_xBuilder->weld_toolbar(u"mutetoolbox"_ustr);

    mxVolumeSlider = m_xBuilder->weld_scale(u"volumeslider"_ustr);

    mxZoomListBox = m_xBuilder->weld_combo_box(u"zoombox"_ustr);

    mxTimeEdit = m_xBuilder->weld_entry(u"timeedit"_ustr);

    mxMediaPath = m_xBuilder->weld_label(u"url"_ustr);

    InitializeWidgets();

    mxPlayToolBox->connect_clicked( LINK( this, MediaControl, implSelectHdl ) );

    mxTimeSlider->connect_value_changed( LINK( this, MediaControl, implTimeHdl ) );

    // when changing the time, use this to do the time change after active scrolling

    // has stopped for a little which

    maChangeTimeIdle.SetPriority( TaskPriority::LOWEST );

    maChangeTimeIdle.SetInvokeHandler( LINK( this, MediaControl, implTimeEndHdl ) );

    mxTimeEdit->set_text(u" 00:00:00/00:00:00 "_ustr);

    Size aTextSize = mxTimeEdit->get_preferred_size();

    mxTimeEdit->set_size_request(aTextSize.Width(), aTextSize.Height());

    mxTimeEdit->set_text(OUString());

    mxMuteToolBox->connect_clicked( LINK( this, MediaControl, implSelectHdl ) );

    mxVolumeSlider->connect_value_changed( LINK( this, MediaControl, implVolumeHdl ) );

    mxZoomListBox->connect_changed( LINK( this, MediaControl, implZoomSelectHdl ) );

    mxZoomListBox->set_help_id(HID_AVMEDIA_ZOOMLISTBOX);

    const OUString aMediaPath( AvmResId( AVMEDIA_MEDIA_PATH_DEFAULT ) );

    mxMediaPath->set_label(aMediaPath);

    if (meControlStyle == MediaControlStyle::SingleLine)

        mxMediaPath->set_size_request(mxMediaPath->get_preferred_size().Width() + 400, -1); // maybe extend the no. 400 to span the screen width

    // we want time field + progress slider to update as the media plays

    // give this task a lower prio than REPAINT so that UI updates are not starved

    maIdle.SetPriority( TaskPriority::POST_PAINT );

    maIdle.SetInvokeHandler( LINK( this, MediaControl, implTimeoutHdl ) );

}

void MediaControl::InitializeWidgets()

{

    if( meControlStyle != MediaControlStyle::SingleLine )

    {

        mxPlayToolBox->set_item_help_id(u"open"_ustr, HID_AVMEDIA_TOOLBOXITEM_OPEN);

        mxPlayToolBox->set_item_help_id(u"apply"_ustr, HID_AVMEDIA_TOOLBOXITEM_INSERT);

    }

    avmedia::MediaControlBase::InitializeWidgets();

}

MediaControl::~MediaControl()

{

    disposeOnce();

}

void MediaControl::dispose()

{

    disposeWidgets();

    mxMediaPath.reset();

    InterimItemWindow::dispose();

}

void MediaControl::UpdateURLField(MediaItem const & tempItem)

{

    const OUString aURL( AvmResId(AVMEDIA_MEDIA_PATH) + ":  " + tempItem.getURL() ) ;

    mxMediaPath->set_label(aURL);

}

void MediaControl::setState( const MediaItem& rItem )

{

    if (mbLocked)

        return;

    bool bChanged = maItem.merge(rItem);

    if (bChanged)

    {

        if( rItem.getURL().isEmpty() && meControlStyle == MediaControlStyle::SingleLine )

            mxPlayToolBox->set_sensitive(false);

        UpdateToolBoxes( maItem );

        UpdateTimeSlider( maItem );

        UpdateVolumeSlider( maItem );

        UpdateTimeField( maItem, maItem.getTime() );

        UpdateURLField(maItem);

    }

}

IMPL_LINK( MediaControl, implTimeHdl, weld::Scale&, rSlider, void )

{

    mbLocked = true;

    maIdle.Stop();

    UpdateTimeField(maItem, rSlider.get_value() * maItem.getDuration() / AVMEDIA_TIME_RANGE);

    maChangeTimeIdle.Start();

}

IMPL_LINK_NOARG(MediaControl, implTimeEndHdl, Timer*, void)

{

    MediaItem aExecItem;

    aExecItem.setTime( mxTimeSlider->get_value() * maItem.getDuration() / AVMEDIA_TIME_RANGE );

    // keep state (if the media was playing, keep it playing)

    aExecItem.setState(maItem.getState());

    execute( aExecItem );

    update();

    maIdle.Start();

    mbLocked = false;

}

IMPL_LINK( MediaControl, implVolumeHdl, weld::Scale&, rSlider, void )

{

    MediaItem aExecItem;

    aExecItem.setVolumeDB(rSlider.get_value());

    execute( aExecItem );

    update();

}

IMPL_LINK( MediaControl, implSelectHdl, const OUString&, rIdent, void )

{

    MediaItem aExecItem;

    if (rIdent == "open")

    {

        OUString aURL;

        if (MediaWindow::executeMediaURLDialog(GetFrameWeld(), aURL, nullptr))

        {

            if( !MediaWindow::isMediaURL( aURL, u""_ustr/*TODO?*/, true ) )

                MediaWindow::executeFormatErrorBox(GetFrameWeld());

            else

            {

                aExecItem.setURL( aURL, u""_ustr, u""_ustr/*TODO?*/ );

                aExecItem.setState( MediaState::Play );

            }

        }

    }

    else

        SelectPlayToolBoxItem( aExecItem, maItem, rIdent );

    if (aExecItem.getState() == MediaState::Play)

        maIdle.Start();

    else if (aExecItem.getState() == MediaState::Pause ||

             aExecItem.getState() == MediaState::Stop)

        maIdle.Stop();

    if( aExecItem.getMaskSet() != AVMediaSetMask::NONE )

        execute( aExecItem );

    update();

}

IMPL_LINK( MediaControl, implZoomSelectHdl, weld::ComboBox&, rBox, void )

{

    bool bCurrentlySettingZoom = mbCurrentlySettingZoom;

    mbCurrentlySettingZoom = true;

    MediaItem aExecItem;

    css::media::ZoomLevel eLevel;

    switch (rBox.get_active())

    {

        case AVMEDIA_ZOOMLEVEL_50: eLevel = css::media::ZoomLevel_ZOOM_1_TO_2; break;

        case AVMEDIA_ZOOMLEVEL_100: eLevel = css::media::ZoomLevel_ORIGINAL; break;

        case AVMEDIA_ZOOMLEVEL_200: eLevel = css::media::ZoomLevel_ZOOM_2_TO_1; break;

        case AVMEDIA_ZOOMLEVEL_FIT: eLevel = css::media::ZoomLevel_FIT_TO_WINDOW_FIXED_ASPECT; break;

        case AVMEDIA_ZOOMLEVEL_SCALED: eLevel = css::media::ZoomLevel_FIT_TO_WINDOW; break;

        default: eLevel = css::media::ZoomLevel_NOT_AVAILABLE; break;

    }

    aExecItem.setZoom( eLevel );

    execute( aExecItem );

    update();

    mbCurrentlySettingZoom = bCurrentlySettingZoom;

}

IMPL_LINK_NOARG(MediaControl, implTimeoutHdl, Timer *, void)

{

    update();

    maIdle.Start();

}

} // namespace avmedia

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