plman

Properties

plman.ActivePlaylist	number	read, write	Could be -1 if reading value and no playlist is active.
plman.PlaybackOrder	PlaybackOrder	read, write
plman.PlayingPlaylist	number	read	Could be -1 if not playing or playing item doesn't belong to any playlist.
plman.PlaylistCount	number	read
plman.RecyclerCount	number	read

Methods

Note

Most methods require that the playlistIndex argument is valid. That means not -1 and less than plman.PlaylistCount.

plman.AddLocations(playlistIndex, paths[, select])

Arguments
playlistIndex	number	Must be valid. Also, it must not be an autoplaylist or have a lock in place preventing the addition of new files.
paths	array	Can be file paths/urls/playlists.
select	boolean	Default false. If true, the active playlist will be set to the playlistIndex, the items will be selected and focus will be set to the first new item.

No return value.

Note

This operation is asynchronous and may take some time to complete if it's a large array.

Example

var arr = ["e:\\1.mp3"];
plman.AddLocations(plman.ActivePlaylist, arr);

plman.AddPlaylistLock(playlistIndex, mask)

Arguments
playlistIndex	number	Must be valid.
mask	PlaylistLockFilterMask

Returns true on success, false if playlist already locked.

See plman.ShowPlaylistLockUI first as that provides a dialog and is much more user friendly!

Note

Before you can add a playlist lock, you must check there is no lock present already. If another component owns the lock, you have to use that component to remove it. If the lock is owned by JScript Panel 3 then you must remove it first. This is because locks cannot be edited. You have to remove it and then add a new one with a new mask value.

Example

function add_playlist_lock(playlistIndex, mask) {
    // check if playlistIndex is valid
    if (playlistIndex >= 0 && playlistIndex < plman.PlaylistCount) {
        if (plman.IsPlaylistLocked(playlistIndex)) {
            if (plman.GetPlaylistLockName(playlistIndex) == 'JScript Panel 3') {
                // We own this lock so we can remove it.
                plman.RemovePlaylistLock(playlistIndex);
            } else {
                // Locked but not ours. Nothing we can do.
                return false;
            }
        }

        return plman.AddPlaylistLock(playlistIndex, mask);
    }
    return false;
}

// Available mask values
var PlaylistLockFilterMask = {
    filter_add : 1,
    filter_remove : 2,
    filter_reorder : 4,
    filter_replace : 8,
    filter_rename : 16,
    filter_remove_playlist : 32,
};

// Setting a single value:
var mask = PlaylistLockFilterMask.filter_add;

// To set multiple values at once, use | like this:
var mask2 = PlaylistLockFilterMask.filter_add | PlaylistLockFilterMask.filter_remove;

// You may add a value to an existing mask using a bitwise operator like this:
mask |= PlaylistLockFilterMask.filter_replace;

//To remove a value, use &= and ~ like this:
mask &= ~PlaylistLockFilterMask.filter_replace;

plman.ClearPlaylist(playlistIndex)

Arguments
playlistIndex	number	Must be valid.

No return value.

plman.ClearPlaylistSelection(playlistIndex)

Arguments
playlistIndex	number	Must be valid.

No return value.

plman.CreateAutoPlaylist(playlistIndex, name, query[, sort, flags])

Arguments
playlistIndex	number
name	string
query	string
flags	number	Default 0. Use 1 to force sort.

Returns the index of the newly created Autoplaylist or -1 on failure. The most likely cause of that would be an invalid query.

plman.CreatePlaylist([playlistIndex, name])

Arguments
playlistIndex	number	Optional
name	string	Optional

Returns the index of the newly created playlist.

Example

/*
Creates a new playlist last in the list and it
will be named `New playlist` or have numbers appended if
there are existing playlists with the same name. Using
the return value, you can switch to it.
*/

var new_index = plman.CreatePlaylist();
plman.ActivePlaylist = new_index;

plman.DuplicatePlaylist(playlistIndex, name)

Arguments
playlistIndex	number	Must be valid.
name	string	If you supply an empty string, the name of the original playlist is used.

Returns the index of the newly created playlist which will be directly after the original. Only the content is duplicated, not the properties.

plman.ExecutePlaylistDefaultAction(playlistIndex, playlistItemIndex)

Arguments
playlistIndex	number	Must be valid.
playlistItemIndex	number	Must be valid.

No return value.

Starts playback by executing the default doubleclick action unless overridden by a lock to do something else.

plman.FindByGUID(str)

Arguments
str	string

Returns the index or -1 on failure. Only strings returned by plman.GetGUID would be valid.

plman.FindOrCreatePlaylist(name, unlocked)

Arguments
name	string
unlocked	boolean	If true, locked playlists are ignored when looking for existing playlists.

Returns index of named playlist or newly created playlist.

plman.FindPlaylist(name)

Arguments
name	string	Not case senstive.

Returns the found index or -1 on failure.

plman.GetGUID(playlistIndex)

Arguments
playlistIndex	number	Must be valid.

Returns a string which is a unique persistent property of the playlist.

plman.GetPlaybackOrders()

Returns a VBArray so you need to use .toArray() on the result.

This is an array of playback order names which can be iterated or used with plman.PlaybackOrder.

Example

CurrentLoop

console.log(plman.GetPlaybackOrders().toArray()[plman.PlaybackOrder]);

var arr = plman.GetPlaybackOrders().toArray();
for (var i = 0; i < arr.length; i++) {
    console.log(arr[i]);
}

plman.GetPlayingItemLocation()

Returns an IPlayingItemLocation instance.

plman.GetPlaylistFocusItemIndex(playlistIndex)

Arguments
playlistIndex	number

Returns index or -1 if nothing is selected.

plman.GetPlaylistItemCount(playlistIndex)

Arguments
playlistIndex	number

Returns a number.

plman.GetPlaylistItems(playlistIndex)

Arguments
playlistIndex	number

Returns an IMetadbHandleList instance.

plman.GetPlaylistLockFilterMask(playlistIndex)

Arguments
playlistIndex	number

Returns a PlaylistLockFilterMask or -1 if supplied with an invalid playlistIndex.

Use this to determine the type(s) of locks applied to the specified playlist.

Example

var PlaylistLockFilterMask = {
    filter_add : 1,
    filter_remove : 2,
    filter_reorder : 4,
    filter_replace : 8,
    filter_rename : 16,
    filter_remove_playlist : 32,
};

var mask = plman.GetPlaylistLockFilterMask(plman.ActivePlaylist)
if (mask & PlaylistLockFilterMask.filter_add) {
    console.log("Can't add files to this playlist");
}

For convenience, these methods are included in helpers.txt.

function playlist_can_add_items(playlistIndex) {
    return !(plman.GetPlaylistLockFilterMask(playlistIndex) & PlaylistLockFilterMask.filter_add);
}

function playlist_can_remove_items(playlistIndex) {
    return !(plman.GetPlaylistLockFilterMask(playlistIndex) & PlaylistLockFilterMask.filter_remove);
}

function playlist_can_reorder(playlistIndex) {
    return !(plman.GetPlaylistLockFilterMask(playlistIndex) & PlaylistLockFilterMask.filter_reorder);
}

function playlist_can_replace_items(playlistIndex) {
    return !(plman.GetPlaylistLockFilterMask(playlistIndex) & PlaylistLockFilterMask.filter_replace);
}

function playlist_can_rename(playlistIndex) {
    return !(plman.GetPlaylistLockFilterMask(playlistIndex) & PlaylistLockFilterMask.filter_rename);
}

function playlist_can_remove(playlistIndex) {
    return !(plman.GetPlaylistLockFilterMask(playlistIndex) & PlaylistLockFilterMask.filter_remove_playlist);
}

plman.GetPlaylistLockName(playlistIndex)

Arguments
playlistIndex	number

Returns the name of the component that implemented the playlist lock or an empty string if the playlist is not locked.

plman.GetPlaylistName(playlistIndex)

Arguments
playlistIndex	number

Returns a string.

plman.GetPlaylistSelectedIndexes(playlistIndex)

Arguments
playlistIndex	number	Must be valid.

Returns a VBArray so you need to use .toArray() on the result.

plman.GetPlaylistSelectedItems(playlistIndex)

Arguments
playlistIndex	number

Returns an IMetadbHandleList instance.

plman.GetQueryItems(playlistIndex, query)

Arguments
playlistIndex	number	Must be valid.
query	string

Returns an IMetadbHandleList instance.

Note

Errors will be thrown on invalid queries so if you're not using predefined safe queries and are accepting user input, you should use this inside a try/catch statement. An empty handle list will be returned if the query is valid but there are no results.

plman.GetRecyclerItems(index)

Arguments
index	number	Must be valid.

Returns an IMetadbHandleList instance.

Example

var count = plman.RecyclerCount;
if (count > 0) {
    // retrieve handles from first deleted playlist
    var handle_list = plman.GetRecyclerItems(0);
}

plman.GetRecyclerName(index)

Arguments
index	number	Must be valid.

Example

var count = plman.RecyclerCount;
if (count > 0) {
    // output name of first deleted playlist
    console.log(plman.GetRecyclerName(0));
}

plman.InsertPlaylistItems(playlistIndex, base, handle_list[, select])

Arguments
playlistIndex	number	Must be valid.
base	number	Position in playlist.
handle_list	IMetadbHandleList
select	boolean	Default false.

No return value.

plman.InsertPlaylistItemsFilter(playlistIndex, base, handle_list[, select])

Arguments
playlistIndex	number	Must be valid.
base	number	Position in playlist.
handle_list	IMetadbHandleList
select	boolean	Default false.

No return value.

Same as above except any duplicates contained in handle_list are removed.

plman.InvertSelection(playlistIndex)

Arguments
playlistIndex	number	Must be valid.

No return value.

plman.IsAutoPlaylist(playlistIndex)

Arguments
playlistIndex	number

Returns a boolean value.

plman.IsPlaylistItemSelected(playlistIndex, playlistItemIndex)

Arguments
playlistIndex	number
playlistItemIndex	number

Returns a boolean value.

plman.IsPlaylistLocked(playlistIndex)

Arguments
playlistIndex	number

Returns a boolean value.

Note

It's advisable to use plman.GetPlaylistLockFilterMask as this will let you determine what kind of locks are in place. For example, if a playlist only has a lock preventing you from deleting it, you can still add/remove files which you wouldn't be able determine from using plman.IsPlaylistLocked alone.

plman.MovePlaylist(from, to)

Arguments
from	number	Must be valid.
to	number	Must be valid and not equal to from.

No return value.

plman.MovePlaylistSelection(playlistIndex, delta)

Arguments
playlistIndex	number	Must be valid.
delta	number

No return value.

Note

Only useful when the selection is contiguous. See the improved version just below.

plman.MovePlaylistSelectionV2(playlistIndex, new_pos)

Arguments
playlistIndex	number	Must be valid.
new_pos	number

No return value.

Unlike plman.MovePlaylistSelection, this has full support for non-contiguous selections and all you have to do is supply the new position index.

plman.RecyclerPurge(affectedItems)

Arguments
affectedItems	array

No return value.

Purges deleted playlists so they cannot be restored.

Example

// first only
plman.RecyclerPurge([0]);

// first and third only
plman.RecyclerPurge([0,2]);

// purges all deleted playlists
var arr = [];
var count = plman.RecyclerCount;
for (var i = 0; i < count; i++) {
    arr.push(i);
}
plman.RecyclerPurge(arr);

plman.RecyclerRestore(index)

Arguments
index	number	Must be valid.

No return value.

Example

var count = plman.RecyclerCount;
if (count > 0) {
    // restore first deleted playlist
    plman.RecyclerRestore(0);
}

plman.RemovePlaylist(playlistIndex)

Arguments
playlistIndex	number	Must be valid.

No return value.

Note

If removing the active playlist, no playlist will be active after using this. You'll need to set it manually or use plman.RemovePlaylistSwitch instead.

plman.RemovePlaylistLock(playlistIndex)

Arguments
playlistIndex	number	Must be valid.

Returns a boolean value.

Note

You can only remove a playlist lock if it's owned by JScript Panel 3. You can check this with plman.GetPlaylistLockName. See plman.AddPlaylistLock for an example.

plman.RemovePlaylists(playlistIndexes)

Arguments
playlistIndexes	array

No return value.

Example

// This would remove all empty playlists.
var arr = [];
for (var i = 0; i < plman.PlaylistCount; i++) {
    if (plman.GetPlaylistItemCount(i) == 0) arr.push(i);
}
if (arr.length) plman.RemovePlaylists(arr);

plman.RemovePlaylistSelection(playlistIndex[, crop])

Arguments
playlistIndex	number	Must be valid.
crop	boolean	Default false.

No return value.

Example

// Removes selected items from playlist.
plman.RemovePlaylistSelection(plman.ActivePlaylist);

// Removes items that are NOT selected.
plman.RemovePlaylistSelection(plman.ActivePlaylist, true);

plman.RemovePlaylistSwitch(playlistIndex)

Arguments
playlistIndex	number	Must be valid.

No return value.

This automatically sets another playlist as active if removing the active playlist.

plman.RenamePlaylist(playlistIndex, name)

Arguments
playlistIndex	number	Must be valid.
name	string

No return value.

plman.ReplacePlaylistItem(playlistIndex, playlistItemIndex, handle)

Arguments
playlistIndex	number	Must be valid.
playlistItemIndex	number	Must be valid.
handle	IMetadbHandle

No return value.

plman.SelectQueryItems(playlistIndex, query)

Arguments
playlistIndex	number	Must be valid.
query	string

This selects playlist items in a similar manner to the foobar2000 native playlist search.

Returns a VBArray so you need to use .toArray() on the result.

plman.SetActivePlaylistContext()

No return value.

Workaround so you can use the Edit menu when your panel has focus and a dedicated playlist viewer doesn't.

Example

// Once on startup.
plman.SetActivePlaylistContext();

function on_focus(is_focused) {
    if (is_focused) {
        // When the panel gets focus but not on every click.
        plman.SetActivePlaylistContext();
    }
}

plman.SetPlaylistFocusItem(playlistIndex, playlistItemIndex)

Arguments
playlistIndex	number	Must be valid.
playlistItemIndex	number	Must be valid.

No return value.

plman.SetPlaylistSelection(playlistIndex, affectedItems, state)

Arguments
playlistIndex	number	Must be valid.
affectedItems	array
state	boolean

No return value.

Example

// Selects first, third and fifth tracks in playlist.
// This does not affect other selected items.

var arr = [0, 2, 4];
plman.SetPlaylistSelection(plman.ActivePlaylist, arr, true);

plman.SetPlaylistSelectionSingle(playlistIndex, playlistItemIndex, state)

Arguments
playlistIndex	number	Must be valid.
playlistItemIndex	number	Must be valid.
state	boolean

No return value.

Example

// Deselects first playlist item.
// Only works when it is already selected!

plman.SetPlaylistSelectionSingle(plman.ActivePlaylist, 0, false);

Example

// Selects last item in playlist.
// This does not affect other selected items.

var ap = plman.ActivePlaylist;
var count = plman.GetPlaylistItemCount(ap);
plman.SetPlaylistSelectionSingle(ap, count - 1, true);

plman.ShowAutoPlaylistUI(playlistIndex)

Arguments
playlistIndex	number	Must be valid.

No return value.

plman.ShowPlaylistLockUI(playlistIndex)

Arguments
playlistIndex	number	Must be valid.

Shows popup window letting you toggle the various lock options on/off.

No return value.

plman.SortByFormat(playlistIndex, pattern[, selected_items_only])

Arguments
playlistIndex	number	Must be valid.
pattern	string	Title formatting pattern to sort by. Use "" to randomise the order.
selected_items_only	boolean	Default false.

No return value.

plman.SortByFormatV2(playlistIndex, pattern[, direction])

Arguments
playlistIndex	number	Must be valid.
pattern	string	Title formatting pattern to sort by.
direction	number	Default 1. Use 1 for ascending, -1 for descending.

No return value.

plman.SortPlaylistsByName([direction])

Arguments
direction	number	Default 1. Use 1 for ascending, -1 for descending.

No return value.

plman.UndoBackup(playlistIndex)

Arguments
playlistIndex	number	Must be valid.

No return value.

Call before using other plman methods that add/remove/reorder playlist items so a history will be available from the Edit menu.