playtree.cpp 6.65 KB
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/*****************************************************************************
 * playtree.cpp
 *****************************************************************************
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 * Copyright (C) 2005 the VideoLAN team
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 * $Id$
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 *
 * Authors: Antoine Cellerier <dionoea@videolan.org>
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 *          Clément Stenac <zorglub@videolan.org>
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 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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 *****************************************************************************/

#include <vlc/vlc.h>

#include "playtree.hpp"
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#include <vlc_playlist.h>
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#include "../utils/ustring.hpp"

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#include "vlc_charset.h"
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Playtree::Playtree( intf_thread_t *pIntf ): VarTree( pIntf )
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{
    // Get the VLC playlist object
    m_pPlaylist = pIntf->p_sys->p_playlist;

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    i_items_to_append = 0;

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    buildTree();
}

Playtree::~Playtree()
{
}

void Playtree::delSelected()
{
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    Iterator it = begin();
    vlc_mutex_lock( &getIntf()->p_sys->p_playlist->object_lock );
    for( it = begin(); it != end(); it = getNextVisibleItem( it ) )
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    {
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        if( (*it).m_selected && !(*it).isReadonly() )
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        {
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            (*it).m_deleted = true;
        }
    }
    /// \todo Do this better (handle item-deleted)
    tree_update descr;
    descr.i_type = 3;
    notify( &descr );
    it = begin();
    while( it != end() )
    {
        if( (*it).m_deleted )
        {
            VarTree::Iterator it2;
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            playlist_item_t *p_item = (playlist_item_t *)(it->m_pData);
            if( p_item->i_children == -1 )
            {
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                playlist_DeleteFromInput( getIntf()->p_sys->p_playlist,
                                          p_item->p_input->i_id, VLC_TRUE );
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                it2 = getNextVisibleItem( it ) ;
                it->parent()->removeChild( it );
                it = it2;
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            }
            else
            {
                playlist_NodeDelete( getIntf()->p_sys->p_playlist, p_item,
                                     VLC_TRUE, VLC_FALSE );
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                it2 = getNextSibling( it );
                it->parent()->removeChild( it );
                it = it2;
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            }
        }
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        else
        {
            it = getNextVisibleItem( it );
        }
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    }
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    vlc_mutex_unlock( &getIntf()->p_sys->p_playlist->object_lock );
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}

void Playtree::action( VarTree *pItem )
{
    vlc_mutex_lock( &m_pPlaylist->object_lock );
    VarTree::Iterator it;
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    playlist_item_t *p_item = (playlist_item_t *)pItem->m_pData;
    playlist_item_t *p_parent = p_item;
    while( p_parent )
    {
        if( p_parent == m_pPlaylist->p_root_category )
            break;
        p_parent = p_parent->p_parent;
    }

    if( p_parent )
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    {
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        playlist_Control( m_pPlaylist, PLAYLIST_VIEWPLAY, VLC_TRUE, p_parent, p_item );
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    }
    vlc_mutex_unlock( &m_pPlaylist->object_lock );
}

void Playtree::onChange()
{
    buildTree();
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    tree_update descr;
    descr.i_type = 1;
    notify( &descr );
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}

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void Playtree::onUpdateItem( int id )
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{
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    Iterator it = findById( id );
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    tree_update descr;
    descr.b_active_item = false;
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    if( it != end() )
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    {
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        // Update the item
        playlist_item_t* pNode = (playlist_item_t*)(it->m_pData);
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        UString *pName = new UString( getIntf(), pNode->p_input->psz_name );
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        it->m_cString = UStringPtr( pName );
        it->m_playing = m_pPlaylist->status.p_item == pNode;
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        if( it->m_playing ) descr.b_active_item = true;
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    }
    else
    {
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        msg_Warn(getIntf(), "cannot find node with id %d", id );
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    }
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    descr.i_type = 0;
    notify( &descr );
}

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/// \todo keep a list of "recently removed" to avoid looking up if we
//  already removed it
void Playtree::onDelete( int i_id )
{
    tree_update descr;
    descr.i_id = i_id;
    descr.i_type = 3;
    Iterator item = findById( i_id ) ;
    if( item != end() )
    {
        if( item->parent() )
            item->parent()->removeChild( item );
        descr.b_visible = item->parent() ? true : item->parent()->m_expanded;
        notify( &descr );
    }
}

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void Playtree::onAppend( playlist_add_t *p_add )
{
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    i_items_to_append --;

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    Iterator node = findById( p_add->i_node );
    if( node != end() )
    {
        Iterator item =  findById( p_add->i_item );
        if( item == end() )
        {
            playlist_item_t *p_item = playlist_ItemGetById(
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                                        m_pPlaylist, p_add->i_item, VLC_TRUE );
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            if( !p_item ) return;
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            UString *pName = new UString( getIntf(),
                                          p_item->p_input->psz_name );
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            node->add( p_add->i_item, UStringPtr( pName ),
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                      false,false, false, p_item->i_flags & PLAYLIST_RO_FLAG,
                      p_item );
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        }
    }
    tree_update descr;
    descr.i_id = p_add->i_item;
    descr.i_parent = p_add->i_node;
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    descr.b_visible = node->m_expanded;
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    descr.i_type = 2;
    notify( &descr );
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}

void Playtree::buildNode( playlist_item_t *pNode, VarTree &rTree )
{
    for( int i = 0; i < pNode->i_children; i++ )
    {
        UString *pName = new UString( getIntf(),
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                                   pNode->pp_children[i]->p_input->psz_name );
        rTree.add( pNode->pp_children[i]->p_input->i_id, UStringPtr( pName ),
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                     false,
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                     m_pPlaylist->status.p_item == pNode->pp_children[i],
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                     false, pNode->pp_children[i]->i_flags & PLAYLIST_RO_FLAG,
                     pNode->pp_children[i] );
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        if( pNode->pp_children[i]->i_children )
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        {
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            buildNode( pNode->pp_children[i], rTree.back() );
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        }
    }
}

void Playtree::buildTree()
{
    clear();
    vlc_mutex_lock( &m_pPlaylist->object_lock );

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    i_items_to_append = 0;

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    clear();

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    /* TODO: Let user choose view - Stick with category ATM */

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    /* Set the root's name */
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    UString *pName = new UString( getIntf(),
                             m_pPlaylist->p_root_category->p_input->psz_name );
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    m_cString = UStringPtr( pName );

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    buildNode( m_pPlaylist->p_root_category, *this );
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    vlc_mutex_unlock( &m_pPlaylist->object_lock );
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//  What is it ?
//    checkParents( NULL );
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}
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