playlist.m

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/*****************************************************************************
 * playlist.m: MacOS X interface module
 *****************************************************************************
 * Copyright (C) 2002-2004 VideoLAN
 * $Id: playlist.m,v 1.58 2004/02/26 14:40:29 hartman Exp $
 *
 * Authors: Jon Lech Johansen <[e-mail]>
 *          Derk-Jan Hartman <hartman at videolan dot org>
 *
 * 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
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include <stdlib.h>                                      /* malloc(), free() */
#include <sys/param.h>                                    /* for MAXPATHLEN */
#include <string.h>
#include <math.h>
#include <sys/mount.h>
#include <vlc_keys.h>

#include "intf.h"
#include "playlist.h"
#include "controls.h"

/*****************************************************************************
 * VLCPlaylistView implementation 
 *****************************************************************************/
@implementation VLCPlaylistView

- (NSMenu *)menuForEvent:(NSEvent *)o_event
{
    return( [[self delegate] menuForEvent: o_event] );
}

- (void)keyDown:(NSEvent *)o_event
{
    unichar key = 0;
    int i, c, i_row;
    NSMutableArray *o_to_delete;
    NSNumber *o_number;
    
    playlist_t * p_playlist;
    intf_thread_t * p_intf = [NSApp getIntf];

    if( [[o_event characters] length] )
    {
        key = [[o_event characters] characterAtIndex: 0];
    }

    p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
                                          FIND_ANYWHERE );
    
    if ( p_playlist == NULL )
    {
        return;
    }
    
    switch( key )
    {
        case NSDeleteCharacter:
        case NSDeleteFunctionKey:
        case NSDeleteCharFunctionKey:
        case NSBackspaceCharacter:
            o_to_delete = [NSMutableArray arrayWithArray:[[self selectedRowEnumerator] allObjects]];
            c = [o_to_delete count];
            
            for( i = 0; i < c; i++ ) {
                o_number = [o_to_delete lastObject];
                i_row = [o_number intValue];
                
                if( p_playlist->i_index == i_row && p_playlist->i_status )
                {
                    playlist_Stop( p_playlist );
                }
                [o_to_delete removeObject: o_number];
                [self deselectRow: i_row];
                playlist_Delete( p_playlist, i_row );
            }
            [self reloadData];
            break;
            
        default:
            [super keyDown: o_event];
            break;
    }

    if( p_playlist != NULL )
    {
        vlc_object_release( p_playlist );
    }
}


@end

/*****************************************************************************
 * VLCPlaylist implementation 
 *****************************************************************************/
@implementation VLCPlaylist

- (id)init
{
    self = [super init];
    if ( self !=nil )
    {
        i_moveRow = -1;
    }
    return self;
}

- (void)awakeFromNib
{
    [o_table_view setTarget: self];
    [o_table_view setDelegate: self];
    [o_table_view setDataSource: self];

    [o_table_view setDoubleAction: @selector(playItem:)];

    [o_table_view registerForDraggedTypes: 
        [NSArray arrayWithObjects: NSFilenamesPboardType, nil]];

    [o_window setExcludedFromWindowsMenu: TRUE];

/* We need to check whether _defaultTableHeaderSortImage exists, since it 
belongs to an Apple hidden private API, and then can "disapear" at any time*/

    if( [[NSTableView class] respondsToSelector:@selector(_defaultTableHeaderSortImage)] )
    {
        o_ascendingSortingImage = [[NSTableView class] _defaultTableHeaderSortImage];
    }
    else
    {
        o_ascendingSortingImage = nil;
    }

    if( [[NSTableView class] respondsToSelector:@selector(_defaultTableHeaderReverseSortImage)] )
    {
        o_descendingSortingImage = [[NSTableView class] _defaultTableHeaderReverseSortImage];
    }
    else
    {
        o_descendingSortingImage = nil;
    }

    [self initStrings];
}

- (void)initStrings
{
    [o_window setTitle: _NS("Playlist")];
    [o_mi_save_playlist setTitle: _NS("Save Playlist...")];
    [o_mi_play setTitle: _NS("Play")];
    [o_mi_delete setTitle: _NS("Delete")];
    [o_mi_selectall setTitle: _NS("Select All")];
    [[o_tc_name headerCell] setStringValue:_NS("Name")];
    [[o_tc_author headerCell] setStringValue:_NS("Author")];
    [[o_tc_duration headerCell] setStringValue:_NS("Duration")];
    [o_random_ckb setTitle: _NS("Random")];
    [o_loop_ckb setTitle: _NS("Repeat All")];
    [o_repeat_ckb setTitle: _NS("Repeat One")];
    [o_search_button setTitle: _NS("Search")];
    [o_btn_playlist setToolTip: _NS("Playlist")];
}

- (void) tableView:(NSTableView*)o_tv
                  didClickTableColumn:(NSTableColumn *)o_tc
{
    intf_thread_t * p_intf = [NSApp getIntf];
    playlist_t *p_playlist =
        (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
                                       FIND_ANYWHERE );

    int max = [[o_table_view tableColumns] count];
    int i;

    if( p_playlist == NULL )
    {
        return;
    }

    if( o_tc_sortColumn == o_tc )
    { 
        b_isSortDescending = !b_isSortDescending;
    }
    else if( o_tc == o_tc_name || o_tc == o_tc_author || 
        o_tc == o_tc_id )
    {
        b_isSortDescending = VLC_FALSE;
        [o_table_view setHighlightedTableColumn:o_tc];
        o_tc_sortColumn = o_tc;
        for( i=0 ; i<max ; i++ )
        {
            [o_table_view setIndicatorImage:nil inTableColumn:[[o_table_view tableColumns] objectAtIndex:i]];
        }
    }

    if( o_tc_id == o_tc && !b_isSortDescending )
    {    
        playlist_SortID( p_playlist , ORDER_NORMAL );
        [o_table_view setIndicatorImage:o_ascendingSortingImage inTableColumn:o_tc];    
    }
    else if( o_tc_name == o_tc && !b_isSortDescending )
    {    
        playlist_SortTitle( p_playlist , ORDER_NORMAL );
        [o_table_view setIndicatorImage:o_ascendingSortingImage inTableColumn:o_tc];    
    }
    else if( o_tc_author == o_tc && !b_isSortDescending )
    {
        playlist_SortAuthor( p_playlist , ORDER_NORMAL );
        [o_table_view setIndicatorImage:o_ascendingSortingImage inTableColumn:o_tc];
    }
    else if( o_tc_id == o_tc && b_isSortDescending )
    {    
        playlist_SortID( p_playlist , ORDER_REVERSE );
        [o_table_view setIndicatorImage:o_ascendingSortingImage inTableColumn:o_tc];    
    }
    else if( o_tc_name == o_tc && b_isSortDescending )
    {    
        playlist_SortTitle( p_playlist , ORDER_REVERSE );
        [o_table_view setIndicatorImage:o_descendingSortingImage inTableColumn:o_tc];
    }
    else if( o_tc_author == o_tc && b_isSortDescending )
    {
        playlist_SortAuthor( p_playlist , ORDER_REVERSE );
        [o_table_view setIndicatorImage:o_descendingSortingImage inTableColumn:o_tc];
    } 
    vlc_object_release( p_playlist );
    [self playlistUpdated];
}


- (BOOL)tableView:(NSTableView *)o_tv 
                  shouldEditTableColumn:(NSTableColumn *)o_tc
                  row:(int)i_row
{
    return( NO );
}

- (NSMenu *)menuForEvent:(NSEvent *)o_event
{
    NSPoint pt;
    vlc_bool_t b_rows;
    vlc_bool_t b_item_sel;

    pt = [o_table_view convertPoint: [o_event locationInWindow] 
                                                 fromView: nil];
    b_item_sel = ( [o_table_view rowAtPoint: pt] != -1 &&
                   [o_table_view selectedRow] != -1 );
    b_rows = [o_table_view numberOfRows] != 0;

    [o_mi_play setEnabled: b_item_sel];
    [o_mi_delete setEnabled: b_item_sel];
    [o_mi_selectall setEnabled: b_rows];

    return( o_ctx_menu );
}

- (IBAction)toggleWindow:(id)sender
{
    if( [o_window isVisible] )
    {
        [o_window orderOut:sender];
        [o_btn_playlist setState:NSOffState];
    }
    else
    {
        [o_window makeKeyAndOrderFront:sender];
        [o_btn_playlist setState:NSOnState];
    }
}

- (IBAction)savePlaylist:(id)sender
{
    intf_thread_t * p_intf = [NSApp getIntf];
    playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
                                                       FIND_ANYWHERE );
    
    NSSavePanel *o_save_panel = [NSSavePanel savePanel];
    NSString * o_name = [NSString stringWithFormat: @"%@.m3u", _NS("Untitled")];
    [o_save_panel setTitle: _NS("Save Playlist")];
    [o_save_panel setPrompt: _NS("Save")];

    if( [o_save_panel runModalForDirectory: nil
            file: o_name] == NSOKButton )
    {
        playlist_Export( p_playlist, [[o_save_panel filename] fileSystemRepresentation], "export-m3u" );
    }

}

- (IBAction)playItem:(id)sender
{
    intf_thread_t * p_intf = [NSApp getIntf];
    playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
                                                       FIND_ANYWHERE );

    if( p_playlist != NULL )
    {
        playlist_Goto( p_playlist, [o_table_view selectedRow] );
        vlc_object_release( p_playlist );
    }
}

- (IBAction)deleteItems:(id)sender
{
    int i, c, i_row;
    NSMutableArray *o_to_delete;
    NSNumber *o_number;

    intf_thread_t * p_intf = [NSApp getIntf];
    playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
                                                       FIND_ANYWHERE );

    if( p_playlist == NULL )
    {
        return;
    }
    
    o_to_delete = [NSMutableArray arrayWithArray:[[o_table_view selectedRowEnumerator] allObjects]];
    c = (int)[o_to_delete count];
    
    for( i = 0; i < c; i++ ) {
        o_number = [o_to_delete lastObject];
        i_row = [o_number intValue];
        
        if( p_playlist->i_index == i_row && p_playlist->i_status )
        {
            playlist_Stop( p_playlist );
        }
        [o_to_delete removeObject: o_number];
        [o_table_view deselectRow: i_row];
        playlist_Delete( p_playlist, i_row );
    }

    vlc_object_release( p_playlist );

    /* this is actually duplicity, because the intf.m manage also updates the view
     * when the playlist changes. we do this on purpose, because else there is a 
     * delay of .5 sec or so when we delete an item */
    [self playlistUpdated];
    [self updateRowSelection];
}

- (IBAction)selectAll:(id)sender
{
    [o_table_view selectAll: nil];
}


- (IBAction)searchItem:(id)sender
{