var g_script_version = "mod";
var g_LDT = DT_LEFT | DT_VCENTER | DT_CALCRECT | DT_NOPREFIX | DT_END_ELLIPSIS;
var g_middle_clicked = false;
var g_middle_click_timer = false;
var g_queue_origin = -1;
var g_textbox_tabbed = false;
var g_leave = false;
var g_focus = true;
var g_init_on_size = false;
var g_left_click_hold = false;
var g_selHolder = null;
var g_repaint = 0;
var g_seconds = 0;
var g_1x1 = false;
var repaint_main = true, repaint_main1 = true, repaint_main2 = true, g_timer1 = false, g_timer2 = false;
var repaint_cover1 = true, repaint_cover2 = false;
var window_visible = false;
var g_mouse_wheel_timer = false;
// drag'n drop from windows system
var g_dragndrop_status = false;
var g_dragndrop_x = -1;
var g_dragndrop_y = -1;
var g_dragndrop_bottom = false;
var g_dragndrop_timer = false;
var g_dragndrop_trackId = -1;
var g_dragndrop_rowId = -1;
var g_dragndrop_targetPlaylistId = -1;
var g_dragndrop_total_before = 0;
var g_dragndrop_drop_forbidden = false;
// font vars
var g_fname, g_fsize, g_fstyle;
var g_font = null;
var g_font_headers = null;
var g_font_group1 = null;
var g_font_group2 = null;
var g_font_guifx_found = utils.CheckFont("guifx v2 transports");
var g_font_playicon, g_font_pauseicon, g_font_checkbox, g_font_queue_idx, g_font_rating, g_font_mood;
var g_font_wd1, g_font_wd2, g_font_wd3;
// color vars
var g_color_normal_bg = 0;
var g_color_selected_bg = 0;
var g_color_normal_txt = 0;
var g_color_selected_txt = 0;
var g_color_highlight = 0;
var g_syscolor_window_bg = 0;
var g_syscolor_highlight = 0;
var g_syscolor_button_bg = 0;
var g_syscolor_button_txt = 0;
// main window vars
var g_avoid_on_playlists_changed = false;
var g_avoid_on_playlist_items_reordered = false;
var g_avoid_on_item_focus_change = false;
var g_avoid_on_playlist_items_added = false;
var g_avoid_on_playlist_items_removed = false;
var g_collect_counter = 0;
var g_first_launch = true;
var g_instancetype = window.InstanceType;
/*
try {
// works only with JScript engine, crash with JScript9 engine
var g_dpi_percent = get_system_dpi_percent();
} catch(e) {
var g_dpi_percent = 100;
}
 */
var g_dpi_percent = 0;
var g_forced_percent = 0; //window.GetProperty("SYSTEM.dpi (0 = Default)", 0);
var g_dpi = (g_forced_percent == 0 ? g_dpi_percent : g_forced_percent);
var g_z2 = 0;
var g_z3 = 0;
var g_z4 = 0;
var g_z5 = 0;
var g_z6 = 0;
var g_z8 = 0;
var g_z10 = 0;
var g_z16 = 0;
var ww = 0, wh = 0;
var mouse_x = 0, mouse_y = 0;
var g_metadb;
var foo_playcount = utils.CheckComponent("foo_playcount", true);
clipboard = {
	selection: null
};
// wallpaper infos
var wpp_img_info = {
	orient: 0,
	cut: 0,
	cut_offset: 0,
	ratio: 0,
	x: 0,
	y: 0,
	w: 0,
	h: 0
};
// WSH statistics globals
var tf_path = fb.TitleFormat("$left(%_path_raw%,4)");
var g_path, g_track_type;
var opt_stats = window.GetProperty("CUSTOM.Enable Statistics (write to file)", false);
var wsh_time_elaps;
var wsh_delay_stats;
var wsh_limit_stats;
var tf_length_seconds = fb.TitleFormat("%length_seconds_fp%");
var first_played = fb.Titleformat("%first_played%");
var last_played = fb.Titleformat("%last_played%");
var play_counter = fb.Titleformat("%play_counter%");
var play_count = fb.Titleformat("%play_count%");
cStats = {
	handle: null,
	waiting_for_writing: false
};

//=================================================// main properties / parameters
properties = {
	showDPI: window.GetProperty("SYSTEM.Show DPI", false),
	enableTouchControl: window.GetProperty("SYSTEM.Enable Touch Scrolling", false),
	collapseGroupsByDefault: window.GetProperty("SYSTEM.Collapse Groups by default", false),
	enablePlaylistFilter: window.GetProperty("SYSTEM.Enable Playlist Filter", false),
	enableCustomColors: window.GetProperty("SYSTEM.Enable Custom Colors", false),
	defaultPlaylistItemAction: window.GetProperty("SYSTEM.Default Playlist Action", "Play"), //"Add to playback queue",
	autocollapse: window.GetProperty("SYSTEM.Auto-Collapse", false),
	showgroupheaders: window.GetProperty("*GROUP: Show Group Headers", true),
	showscrollbar: window.GetProperty("CUSTOM Show Scrollbar", true),
	showwallpaper: window.GetProperty("CUSTOM Show Wallpaper", false),
	wallpaperalpha: window.GetProperty("CUSTOM Wallpaper Alpha", 192),
	wallpaperblurred: window.GetProperty("CUSTOM Wallpaper Blurred", true),
	wallpaperblurvalue: window.GetProperty("CUSTOM Wallpaper Blur value", 1.05),
	wallpapermode: window.GetProperty("CUSTOM Wallpaper Type", 0),
	wallpaperpath: window.GetProperty("CUSTOM Default Wallpaper Path", ".\\user-components\\foo_jscript_panel\\samples\\jsplaylist-mod\\images\\default.jpg"),
	oddevenrowshighlight: window.GetProperty("CUSTOM Highlight Odd/Even Rows", true),
	settingspanel: false,
	smoothscrolling: window.GetProperty("CUSTOM Enable Smooth Scrolling", true),
	repaint_rate1: 20,
	repaint_rate2: 60,
	max_columns: 24,
	max_patterns: 25,
	focus_rect_alpha: window.GetProperty("CUSTOM Focus box ALPHA", 75),
	selection_rect_alpha: window.GetProperty("CUSTOM Selection solid box ALPHA", 60)
};

// =================================================================== // Singleton for Images
images = {
	path: fb.ComponentPath + "\\samples\\jsplaylist-mod\\images\\",
	sortdirection: null,
	glass_reflect: null,
	nocover: null,
	noartist: null,
	stream: null,
	logo: null,
	beam: null,
	noresult: null,
	loading: null,
	loading_angle: 0
};

// =================================================================== // Fonts / Dpi / Colors / Images init
function system_init() {
	get_font();
	get_colors();
};
system_init();

// =================================================================== // Titleformat field
var tf_group_key = null;
// tf fields used in incremental search feature
var tf_artist = fb.TitleFormat("$if(%length%,%artist%,'Stream')");
var tf_albumartist = fb.TitleFormat("$if(%length%,%album artist%,'Stream')");
var tf_bitrate = fb.TitleFormat("$if(%__bitrate_dynamic%,$if(%el_isplaying%,%__bitrate_dynamic%'K',$if($stricmp($left(%codec_profile%,3),'VBR'),%codec_profile%,%__bitrate%'K')),$if($stricmp($left(%codec_profile%,3),'VBR'),%codec_profile%,%__bitrate%'K'))");
var tf_bitrate_playing = fb.TitleFormat("$if(%__bitrate_dynamic%,$if(%_isplaying%,$select($add($mod(%_time_elapsed_seconds%,2),1),%__bitrate_dynamic%,%__bitrate_dynamic%),%__bitrate_dynamic%),%__bitrate%)'K'");

// =================================================================== // Singletons
cRow = { // references of row height (zoom 100%)
	default_playlist_h: window.GetProperty("SYSTEM.Playlist Row Height in Pixel", 28),
	playlist_h: 29,
	extra_line_h: 6,
	playlistManager_h: 28,
	headerBar_h: 26,
	settings_h: 30
};

p = {
	wallpaperImg: null,
	topbar: null,
	headerBar: null,
	list: null,
	playlistManager: null,
	settings: null,
	timer_onKey: false
};

cTouch = {
	down: false,
	y_start: 0,
	y_end: 0,
	down_id: 0,
	up_id: 0
};

cSettings = {
	visible: false,
	topBarHeight: zoom(50, g_dpi),
	tabPaddingWidth: Math.ceil(30 * g_dpi / 100 / 14),
	rowHeight: zoom(cRow.settings_h, g_dpi),
	wheel_timer: false
};

cPlaylistManager = {
	mediaLibraryPlaylist: window.GetProperty("SYSTEM.Media Library Playlist", false),
	enableHistoricPlaylist: window.GetProperty("CUSTOM Historic Playlist enabled", false),
	width: zoom(220, g_dpi),
	rowHeight: zoom(cRow.playlistManager_h, g_dpi),
	showStatusBar: true,
	statusBarHeight: zoom(18, g_dpi),
	step: zoom(50, g_dpi),
	visible: window.GetProperty("SYSTEM.PlaylistManager.Visible", false),
	visible_on_launch: false,
	drag_move_timer: false,
	hscroll_timer: false,
	vscroll_timer_loop: false,
	vscroll_timer: false,
	blink_timer: false,
	blink_counter: -1,
	blink_id: null,
	blink_totaltracks: 0,
	showTotalItems: window.GetProperty("SYSTEM.PlaylistManager.ShowTotalItems", true),
	playlist_switch_pending: false,
	drag_clicked: false,
	drag_moved: false,
	drag_target_id: -1,
	drag_source_id: -1,
	drag_x: -1,
	drag_y: -1,
	drag_droped: false,
	rightClickedId: null,
	init_timer: false,
	inputbox_timer: false,
	sortPlaylists_timer: false
};

cTopBar = {
	height: zoom(54, g_dpi),
	txtHeight: zoom(19, g_dpi),
	visible: window.GetProperty("SYSTEM.TopBar.Visible", true)
};

cHeaderBar = {
	height: zoom(cRow.headerBar_h, g_dpi),
	txtHeight: zoom(12, g_dpi),
	borderWidth: Math.ceil(cRow.headerBar_h * g_dpi / 100 / 14),
	locked: window.GetProperty("SYSTEM.HeaderBar.Locked", true),
	timerAutoHide: false,
	sortRequested: false
};

cScrollBar = {
	width: (g_dpi != g_dpi_percent ? zoom(get_system_scrollbar_width(), g_dpi) : get_system_scrollbar_width()),
	buttonType: {
		cursor: 0,
		up: 1,
		down: 2
	},
	timerID: false,
	parentObjectScrolling: null,
	timerID1: false,
	timerID2: false,
	timerCounter: 0,
	timer_repaint: false,
	themed: window.GetProperty("CUSTOM.Scrollbar Themed", false)
};

cTrack = {
	height: zoom(cRow.playlist_h, g_dpi),
	parity: ((zoom(cRow.playlist_h, g_dpi) / 2) == Math.floor(zoom(cRow.playlist_h, g_dpi) / 2) ? 0 : 1)
};

cGroup = {
	show: window.GetProperty("*GROUP: Show Group Headers", true),
	default_collapsed_height: 3,
	default_expanded_height: 3,
	collapsed_height: 3,
	expanded_height: 3,
	default_count_minimum: window.GetProperty("*GROUP: Minimum number of rows in a group", 0),
	count_minimum: window.GetProperty("*GROUP: Minimum number of rows in a group", 0),
	extra_rows: 0,
	type: 0,
	pattern_idx: window.GetProperty("SYSTEM.Groups.Pattern Index", 0)
};

cover = {
	show: true,
	column: false,
	draw_glass_reflect: window.GetProperty("CUSTOM.Cover draw reflect", false),
	keepaspectratio: window.GetProperty("CUSTOM.Cover keep ration aspect", true),
	load_timer: false,
	repaint_timer: false,
	margin: 7,
	w: 0,
	max_w: cGroup.default_collapsed_height > cGroup.default_expanded_height ? cGroup.default_collapsed_height * cTrack.height : cGroup.default_expanded_height * cTrack.height,
	h: 0,
	max_h: cGroup.default_collapsed_height > cGroup.default_expanded_height ? cGroup.default_collapsed_height * cTrack.height : cGroup.default_expanded_height * cTrack.height,
	previous_max_size: -1,
	resized: false
};

cList = {
	search_string: "",
	incsearch_font: gdi.Font("lucida console", zoom(9, g_dpi), 0),
	incsearch_font_big: gdi.Font("lucida console", zoom(20, g_dpi), 1),
	inc_search_noresult: false,
	clear_incsearch_timer: false,
	incsearch_timer: false,
	repaint_timer: false,
	scrollstep: window.GetProperty("SYSTEM.Playlist Scroll Step", 3),
	touchstep: window.GetProperty("SYSTEM.Playlist Touch Step", 2),
	scroll_timer: false,
	scroll_delta: cTrack.height,
	scroll_direction: 1,
	scroll_step: Math.floor(cTrack.height / 3),
	scroll_div: 2,
	borderWidth: Math.ceil(cRow.headerBar_h * g_dpi / 100 / 14),
	beam_timer: false,
	addToQueue_timer: false,
	enableExtraLine: window.GetProperty("SYSTEM.Enable Extra Line", true)
};

dragndrop = {
	enabled: true,
	contigus_sel: null,
	x: 0,
	y: 0,
	drag_id: -1,
	drop_id: -1,
	timerID: false,
	drag_in: false,
	drag_out: false,
	clicked: false,
	moved: false
};

columns = {
	rating: false,
	rating_x: 0,
	rating_w: 0,
	rating_drag: false,
	mood: false,
	mood_x: 0,
	mood_w: 0,
	mood_drag: false
};

//=================================================// Smoother scrolling in playlist
function set_scroll_delta() {
	var maxOffset = (p.list.totalRows > p.list.totalRowVisible ? p.list.totalRows - p.list.totalRowVisible : 0);
	if (p.list.offset > 0 && p.list.offset < maxOffset) {
		if (!cList.scroll_timer) {
			cList.scroll_delta = cTrack.height;
			if (!(cList.scroll_direction > 0 && p.list.offset == 0) && !(cList.scroll_direction < 0 && p.list.offset >= p.list.totalRows - p.list.totalRowVisible)) {
				cList.scroll_timer = window.SetInterval(function () {
						cList.scroll_step = Math.round(cList.scroll_delta / cList.scroll_div);
						cList.scroll_delta -= cList.scroll_step;
						if (cList.scroll_delta <= 1) {
							window.ClearTimeout(cList.scroll_timer);
							cList.scroll_timer = false;
							cList.scroll_delta = 0;
						};
						full_repaint();
					}, 30);
			};
		} else {
			cList.scroll_delta = cTrack.height;
		};
	};
};

//=================================================// Extra functions for playlist manager panel
function renamePlaylist() {
	if (!p.playlistManager.inputbox.text || p.playlistManager.inputbox.text == "" || p.playlistManager.inputboxID == -1)
		p.playlistManager.inputbox.text = p.playlistManager.playlists[p.playlistManager.inputboxID].name;
	if (p.playlistManager.inputbox.text.length > 1 || (p.playlistManager.inputbox.text.length == 1 && (p.playlistManager.inputbox.text >= "a" && p.playlistManager.inputbox.text <= "z") || (p.playlistManager.inputbox.text >= "A" && p.playlistManager.inputbox.text <= "Z") || (p.playlistManager.inputbox.text >= "0" && p.playlistManager.inputbox.text <= "9"))) {
		p.playlistManager.playlists[p.playlistManager.inputboxID].name = p.playlistManager.inputbox.text;
		plman.RenamePlaylist(p.playlistManager.playlists[p.playlistManager.inputboxID].idx, p.playlistManager.inputbox.text);
		full_repaint();
	};
	p.playlistManager.inputboxID = -1;
};

function inputboxPlaylistManager_activate() {
	window.ClearTimeout(cPlaylistManager.inputbox_timer);
	cPlaylistManager.inputbox_timer = false;
	//
	p.playlistManager.inputbox.on_focus(true);
	p.playlistManager.inputbox.edit = true;
	p.playlistManager.inputbox.Cpos = p.playlistManager.inputbox.text.length;
	p.playlistManager.inputbox.anchor = p.playlistManager.inputbox.Cpos;
	p.playlistManager.inputbox.SelBegin = p.playlistManager.inputbox.Cpos;
	p.playlistManager.inputbox.SelEnd = p.playlistManager.inputbox.Cpos;
	if (!cInputbox.timer_cursor) {
		p.playlistManager.inputbox.resetCursorTimer();
	};
	p.playlistManager.inputbox.dblclk = true;
	p.playlistManager.inputbox.SelBegin = 0;
	p.playlistManager.inputbox.SelEnd = p.playlistManager.inputbox.text.length;
	p.playlistManager.inputbox.text_selected = p.playlistManager.inputbox.text;
	p.playlistManager.inputbox.select = true;
	full_repaint();
};

function addToHistoricPlaylist(handle) {

	if (plman.GetPlaylistName(plman.PlayingPlaylist) == "Historic")
		return;

	g_avoid_on_playlists_changed = true;

	// check if historic playlist is present
	var isHistoricPlaylistFound = false;
	var total = plman.PlaylistCount;
	for (var i = 0; i < total; i++) {
		if (plman.GetPlaylistName(i) == "Historic") {
			var historicIndex = i;
			isHistoricPlaylistFound = true;
			break;
		};
	};
	if (!isHistoricPlaylistFound) {
		// create Historic playlist
		var historicIndex = total;
		plman.CreatePlaylist(historicIndex, "Historic");
	};

	if (handle != null) {
		var handles = plman.GetPlaylistSelectedItems(-1);
		handles.Add(handle);
		plman.InsertPlaylistItems(historicIndex, plman.PlaylistItemCount(historicIndex), handles, false);
	};

	g_avoid_on_playlists_changed = false;

	if (cPlaylistManager.visible)
		full_repaint();
};

function checkMediaLibrayPlaylist() {
	g_avoid_on_playlists_changed = true;

	// check if library playlist is present
	var isMediaLibraryFound = false;
	var total = plman.PlaylistCount;
	for (var i = 0; i < total; i++) {
		if (plman.GetPlaylistName(i) == "Media Library") {
			var mediaLibraryIndex = i;
			isMediaLibraryFound = true;
			break;
		};
	};
	if (!isMediaLibraryFound) {
		// create Media Library playlist
		// > sort: sort string expression.
		// > flags: 1 - always sort.
		// > boolean CreateAutoPlaylist(idx, name, query, sort = "", flags = 0);
		plman.CreateAutoPlaylist(total, "Media Library", "ALL", "%album artist% | $if(%album%,%date%,'9999') | %album% | %discnumber% | %tracknumber% | %title%", 0);
		// Move it to the top
		plman.MovePlaylist(total, 0);
	} else if (mediaLibraryIndex > 0) {
		// Always move it to the top
		plman.MovePlaylist(mediaLibraryIndex, 0);
	};

	g_avoid_on_playlists_changed = false;
};

function togglePlaylistManager() {
	if (!cPlaylistManager.hscroll_timer) {
		if (cPlaylistManager.visible) {
			cPlaylistManager.hscroll_timer = window.SetInterval(function () {
					p.playlistManager.repaint();
					p.playlistManager.woffset -= cPlaylistManager.step;
					if (p.playlistManager.woffset <= 0) {
						p.playlistManager.woffset = 0;
						cPlaylistManager.hscroll_timer && window.ClearTimeout(cPlaylistManager.hscroll_timer);
						cPlaylistManager.hscroll_timer = false;
						cPlaylistManager.visible = false;
						window.SetProperty("SYSTEM.PlaylistManager.Visible", cPlaylistManager.visible);
						p.headerBar.button.update(p.headerBar.slide_open_normal, p.headerBar.slide_open_hover, p.headerBar.slide_open_down);
						full_repaint();
					};
				}, 16);
		} else {
			p.playlistManager.refresh("", false, false);
			cPlaylistManager.hscroll_timer = window.SetInterval(function () {
					p.playlistManager.woffset += cPlaylistManager.step;
					if (p.playlistManager.woffset >= cPlaylistManager.width) {
						p.playlistManager.woffset = cPlaylistManager.width;
						cPlaylistManager.hscroll_timer && window.ClearTimeout(cPlaylistManager.hscroll_timer);
						cPlaylistManager.hscroll_timer = false;
						cPlaylistManager.visible = true;
						window.SetProperty("SYSTEM.PlaylistManager.Visible", cPlaylistManager.visible);
						p.headerBar.button.update(p.headerBar.slide_close_normal, p.headerBar.slide_close_hover, p.headerBar.slide_close_down);
						full_repaint();
					} else {
						p.playlistManager.repaint();
					};
				}, 16);
		};
	};
};

function adjustMetrics(origin) {
	cSettings.topBarHeight = zoom(50, g_dpi);
	cSettings.tabPaddingWidth = Math.ceil(30 * g_dpi / 100 / 14);
	cSettings.columnOffset = 0;
	cSettings.rowHeight = zoom(cRow.settings_h, g_dpi);
	cTopBar.height = zoom(54, g_dpi);
	cTopBar.txtHeight = zoom(19, g_dpi);
	cHeaderBar.height = zoom(cRow.headerBar_h, g_dpi);
	cHeaderBar.txtHeight = zoom(12, g_dpi);
	cHeaderBar.borderWidth = Math.ceil(cRow.headerBar_h * g_dpi / 100 / 14);
	var fin = p.headerBar.columns.length;
	for (var i = 0; i < fin; i++) {
		p.headerBar.columns[i].minWidth = zoom(32, g_dpi);
	};
	if (p.headerBar.columns[0].percent > 0)
		cover.resized = true;
	cScrollBar.width = (g_dpi != g_dpi_percent ? Math.ceil(get_system_scrollbar_width() * g_dpi / 100) : get_system_scrollbar_width());
	cTrack.height = zoom(cRow.playlist_h, g_dpi);
	cPlaylistManager.width = zoom(220, g_dpi);
	cPlaylistManager.rowHeight = zoom(cRow.playlistManager_h, g_dpi);
	cPlaylistManager.statusBarHeight = zoom(16, g_dpi);
	cPlaylistManager.step = zoom(50, g_dpi);
	get_font();
	p.playlistManager.setButtons();
	p.playlistManager.refresh("", false, false, false);
	cList.incsearch_font = gdi.Font("lucida console", zoom(9, g_dpi), 0);
	cList.incsearch_font_big = gdi.Font("lucida console", zoom(20, g_dpi), 1);
	cList.borderWidth = Math.ceil(cRow.headerBar_h * g_dpi / 100 / 14);

	//
	g_z2 = zoom(2, g_dpi);
	g_z3 = zoom(3, g_dpi);
	g_z4 = zoom(4, g_dpi);
	g_z5 = zoom(5, g_dpi);
	g_z6 = zoom(6, g_dpi);
	g_z8 = zoom(8, g_dpi);
	g_z10 = zoom(10, g_dpi);
	g_z16 = zoom(16, g_dpi);
	//

	if (origin == 1) {
		// reset cover cache on zoom/resize
		cover.max_w = (cGroup.default_collapsed_height > cGroup.default_expanded_height ? cGroup.default_collapsed_height * cTrack.height : cGroup.default_expanded_height * cTrack.height);
		g_image_cache = new image_cache;
		CollectGarbage();
	};
};

//=================================================// Images cache
function on_get_album_art_done(metadb, art_id, image, image_path) {

	if (g_image_cache.counter > 0)
		g_image_cache.counter--;

	var cover_metadb = null;
	var fin = p.list.items.length;
	for (var i = 0; i < fin; i++) {
		if (p.list.items[i].metadb) {
			if (cover.column) {
				cover_metadb = p.list.handleList.Item(p.list.groups[p.list.items[i].group_index].start);
			} else {
				cover_metadb = p.list.items[i].metadb;
			};
			if (cover_metadb.Compare(metadb)) {
				p.list.items[i].cover_img = g_image_cache.getit(metadb, p.list.items[i].tracktype, image);
				var cx = p.list.items[i].x;
				var cy = p.list.items[i].y;
				// fix for a weird behaviour with engine Jscript9
				if (!cx)
					cx = 2;
				else if (cx < 2)
					cx = 2;
				if (!cy)
					cy = 2;
				else if (cy < 2)
					cy = 2;
				var cw = cover.column ? ((p.headerBar.columns[0].w <= cover.max_w) ? cover.max_w : p.headerBar.columns[0].w) : cover.max_w;
				if (!g_mouse_wheel_timer && !cScrollBar.timerID2 && !cList.repaint_timer) {
					if (!cover.repaint_timer) {
						cover.repaint_timer = window.SetTimeout(function () {
								g_1x1 = false;
								if (!g_mouse_wheel_timer && !cScrollBar.timerID2 && !cList.repaint_timer)
									cover_repaint(); //window.RepaintRect(p.list.x, p.list.y, cw, p.list.h);
								cover.repaint_timer && window.ClearTimeout(cover.repaint_timer);
								cover.repaint_timer = false;
							}, 75);
					};
					g_1x1 = true;
					window.RepaintRect(0, 0, 1, 1);
					g_1x1 = false;
				};
				break;
			};
		};
	};
};

image_cache = function () {
	this.counter = 0;
	this._cachelist = {};
	this.hit = function (metadb) {
		var d = (properties.showgroupheaders ? metadb.Path : fb.TitleFormat("$replace(%path%,%filename_ext%,)").EvalWithMetadb(metadb));
		var img = this._cachelist[d];
		if (typeof img == "undefined") { // if image not in cache, we load it asynchronously
			if (!cover.load_timer) {
				cover.load_timer = window.SetTimeout(function () {
						switch (cGroup.type) {
						case 0:
							var art_id = AlbumArtId.front;
							break;
						case 1:
							var art_id = AlbumArtId.artist;
							break;
						case 2:
							var art_id = AlbumArtId.front;
							break;
						};
						g_image_cache.counter++;
						utils.GetAlbumArtAsync(window.ID, metadb, art_id, true, false, false);
						cover.load_timer && window.ClearTimeout(cover.load_timer);
						cover.load_timer = false;
					}, (g_mouse_wheel_timer || cScrollBar.timerID2 ? 20 : 10));
			};
		};
		return img;
	};
	this.getit = function (metadb, track_type, image) {
		var cw = cover.column ? ((p.headerBar.columns[0].w <= cover.max_w) ? cover.max_w : p.headerBar.columns[0].w) : cover.max_w;
		var ch = cw;
		var img;
		if (cover.keepaspectratio) {
			if (!image) {
				var pw = cw + cover.margin * 2;
				var ph = ch + cover.margin * 2;
			} else {
				if (image.Height >= image.Width) {
					var ratio = image.Width / image.Height;
					var pw = (cw + cover.margin * 2) * ratio;
					var ph = ch + cover.margin * 2;
				} else {
					var ratio = image.Height / image.Width;
					var pw = cw + cover.margin * 2;
					var ph = (ch + cover.margin * 2) * ratio;
				};
			};
		} else {
			var pw = cw + cover.margin * 2;
			var ph = ch + cover.margin * 2;
		};
		// cover.type : 0 = nocover, 1 = external cover, 2 = embedded cover, 3 = stream
		if (track_type != 3) {
			if (metadb) {
				img = FormatCover(image, pw, ph, cover.draw_glass_reflect, false);
				if (!img) {
					//img = (cGroup.type == 1) ? images.noartist : images.nocover;
					img = null;
					cover.type = 0;
				} else {
					cover.type = 1;
				};
			};
		} else {
			img = images.stream;
			cover.type = 3;
		};
		var d = (properties.showgroupheaders ? metadb.Path : fb.TitleFormat("$replace(%path%,%filename_ext%,)").EvalWithMetadb(metadb));
		this._cachelist[d] = img;
		return img;
	};
};
var g_image_cache = new image_cache;

//=================================================// Cover tools
function FormatCover(image, w, h, reflect, rawBitmap) {
	if (!image || w <= 0 || h <= 0)
		return image;
	if (reflect) {
		var new_img = image.Resize(w, h, 2);
		var gb = new_img.GetGraphics();
		if (h > w) {
			gb.DrawImage(images.glass_reflect, Math.floor((h - w) / 2) * -1 + 1, 1, h - 2, h - 2, 0, 0, images.glass_reflect.Width, images.glass_reflect.Height, 0, 150);
		} else {
			gb.DrawImage(images.glass_reflect, 1, Math.floor((w - h) / 2) * -1 + 1, w - 2, w - 2, 0, 0, images.glass_reflect.Width, images.glass_reflect.Height, 0, 150);
		};
		new_img.ReleaseGraphics(gb);
		if (rawBitmap) {
			return new_img.CreateRawBitmap();
		} else {
			return new_img;
		};
	} else {
		if (rawBitmap) {
			return image.Resize(w, h, 2).CreateRawBitmap();
		} else {
			return image.Resize(w, h, 2);
		};
	};

};

function reset_cover_timers() {
	cover.load_timer && window.ClearTimeout(cover.load_timer);
	cover.load_timer = false;
};

//=================================================// WSH Statistics update function
function update_statistics() {
	var foo_playcount = utils.CheckComponent("foo_playcount", true);
	if (opt_stats && !foo_playcount && cStats.waiting_for_writing && cStats.handle) {
		var d;
		var timestamp;
		var s1,
		s2,
		s3,
		hh,
		min,
		sec;
		var new_playcounter;
		var p_count,
		p_counter;

		p_count = play_count.EvalWithMetadb(cStats.handle);
		p_counter = play_counter.EvalWithMetadb(cStats.handle);

		d = new Date();
		s1 = d.getFullYear();
		s2 = (d.getMonth() + 1);
		s3 = d.getDate();
		hh = d.getHours();
		min = d.getMinutes();
		sec = d.getSeconds();
		if (s3.length == 1)
			s3 = "0" + s3;
		timestamp = s1 + ((s2 < 10) ? "-0" : "-") + s2 + ((s3 < 10) ? "-0" : "-") + s3 + ((hh < 10) ? " 0" : " ") + hh + ((min < 10) ? ":0" : ":") + min + ((sec < 10) ? ":0" : ":") + sec;

		if (p_count >= 0 && p_counter == "?") {
			new_playcounter = Math.floor(p_count) + 1;
		} else if (p_counter == "?") {
			new_playcounter = 1;
		} else {
			new_playcounter = Math.floor(p_counter) + 1;
		};

		var firstplayed_ts = first_played.EvalWithMetadb(cStats.handle);

		// UPDATE TAGs
		if (firstplayed_ts != "?") {
			bool = cStats.handle.UpdateFileInfoSimple("LAST_PLAYED", timestamp, "PLAY_COUNTER", new_playcounter, "PLAY_COUNT", "");
		} else {
			bool = cStats.handle.UpdateFileInfoSimple("FIRST_PLAYED", timestamp, "LAST_PLAYED", timestamp, "PLAY_COUNTER", new_playcounter, "PLAY_COUNT", "");
		};
		cStats.waiting_for_writing = false;
		// report to console
		fb.trace("--- WSH Statistics ---");
		fb.trace("--- Track updated: \"" + cStats.handle.Path + "\"");
	};
};

// ================================================================================================== //

function full_repaint() {
	repaint_main1 = repaint_main2;
};

function cover_repaint() {
	repaint_cover1 = repaint_cover2;
};

function resize_panels() {

	// list row height
	if (cList.enableExtraLine) {
		cRow.playlist_h = cRow.default_playlist_h + cRow.extra_line_h;
	} else {
		cRow.playlist_h = cRow.default_playlist_h;
	};
	cTrack.height = zoom(cRow.playlist_h, g_dpi);
	cTrack.parity = ((zoom(cRow.playlist_h, g_dpi) / 2) == Math.floor(zoom(cRow.playlist_h, g_dpi) / 2) ? 0 : 1);

	// topbar default height ?
	if (cTopBar.visible) {
		var topbar_h = cTopBar.height + cHeaderBar.borderWidth;
	} else {
		var topbar_h = 0;
	};

	if (cHeaderBar.locked) {
		var headerbar_h = cHeaderBar.height;
		p.headerBar.visible = true;
	} else {
		var headerbar_h = (topbar_h == 0) ? 0 : 1;
		p.headerBar.visible = false;
	};

	// playlist_manager default width/height ?
	var playlistManager_h = wh - topbar_h;
	cPlaylistManager.visible_on_launch = cPlaylistManager.visible;
	if (cPlaylistManager.visible) {
		if (g_init_on_size) { // show again panel when back from settings!
			cPlaylistManager.visible = true;
			p.playlistManager.woffset = 0;
			/*
			if(cPlaylistManager.visible_on_launch) {
			if(!cPlaylistManager.init_timer) {
			cPlaylistManager.init_timer = window.SetTimeout(function() {
			togglePlaylistManager();
			window.ClearTimeout(cPlaylistManager.init_timer);
			cPlaylistManager.init_timer = false;
			}, 150);
			};
			};
			 */
		} else {
			cPlaylistManager.visible = false;
			p.playlistManager.woffset = cPlaylistManager.width;
		};
	};

	// list default height ?
	var list_h = wh - topbar_h - headerbar_h - (p.headerBar.visible ? cHeaderBar.borderWidth : 0);

	// set Size of Topbar
	p.topBar.setSize(0, 0, ww, topbar_h);

	// set Size of Header Bar
	p.headerBar && p.headerBar.setSize(0, topbar_h, ww, cHeaderBar.height);
	p.headerBar.calculateColumns();

	// set Size of List
	p.list.setSize(0, (wh - list_h), ww, list_h);
	if (g_init_on_size) {
		p.list.setItems(true);
	};

	// set Size of scrollbar
	p.scrollbar.setSize(p.list.x + p.list.w - cScrollBar.width, p.list.y, cScrollBar.width, p.list.h);
	p.scrollbar.setCursor(p.list.totalRowVisible, p.list.totalRows, p.list.offset);

	// set Size of Settings
	p.settings.setSize(0, 0, ww, wh);

	// set Size of PlaylistManager
	p.playlistManager.setSize(ww, p.list.y, cPlaylistManager.width, p.list.h);
	if (cPlaylistManager.visible) {
		p.playlistManager.refresh("", false, false);
	} else {
		p.playlistManager.refresh("", true, true);
	};
};

//=================================================// Init
function on_init() {
	// clear queue and queue playlist
	plman.FlushPlaybackQueue();
	ClearQueuePlaylist();

	// check properties
	if (!properties.showgroupheaders) {
		cGroup.collapsed_height = 0;
		cGroup.expanded_height = 0;
	};

	p.list = new oList("p.list", plman.ActivePlaylist);
	p.topBar = new oTopBar();
	p.headerBar = new oHeaderBar();
	p.headerBar.initColumns();
	p.scrollbar = new oScrollbar(cScrollBar.themed);

	if (cPlaylistManager.mediaLibraryPlaylist)
		checkMediaLibrayPlaylist();

	p.playlistManager = new oPlaylistManager("p.playlistManager");
	p.settings = new oSettings();

	if (g_timer1) {
		window.KillTimer(g_timer1);
		g_timer1 = false;
	};
	g_timer1 = window.SetInterval(function () {
			if (!window.IsVisible) {
				window_visible = false;
				return;
			};

			var repaint_1 = false;

			if (!window_visible) {
				window_visible = true;
			};

			if (repaint_main1 == repaint_main2) {
				repaint_main2 = !repaint_main1;
				repaint_1 = true;
			};

			if (repaint_1) {
				window.Repaint();
			};

		}, properties.repaint_rate1);

	if (g_timer2) {
		window.KillTimer(g_timer2);
		g_timer2 = false;
	};
	g_timer2 = window.SetInterval(function () {

			if (repaint_main1 == repaint_main2) {
				return;
			};

			if (!window.IsVisible) {
				window_visible = false;
				return;
			};

			var repaint_2 = false;

			if (!window_visible) {
				window_visible = true;
			};

			images.loading_angle = (images.loading_angle < 360 ? images.loading_angle + 36 : 36);

			if (repaint_cover1 == repaint_cover2) {
				repaint_cover2 = !repaint_cover1;
				if (!cScrollBar.timerID2 && !g_mouse_wheel_timer)
					repaint_2 = true;
			};

			if (repaint_2 || g_image_cache.counter > 0) {
				if (!g_mouse_wheel_timer && !cScrollBar.timerID2 && !cList.repaint_timer) {
					var bigger_grp_height = (cGroup.default_expanded_height > cGroup.default_collapsed_height ? cGroup.default_expanded_height : cGroup.default_collapsed_height);
					if (p.headerBar.columns[0].percent > 0) {
						var cw = cover.margin + p.headerBar.columns[0].w;
					} else if (cover.show) {
						var cw = cover.margin + (cTrack.height * bigger_grp_height);
					};
					window.RepaintRect(p.list.x, p.list.y, cw, p.list.h);
				};
			};
		}, properties.repaint_rate2);
};
on_init();

//=================================================// OnSize
function on_size() {
	if (!window.Width || !window.Height)
		return;
	window.DlgCode = DLGC_WANTALLKEYS;

	if (g_instancetype == 0) { // CUI
		window.MinWidth = 360;
		window.MinHeight = 200;
	} else if (g_instancetype == 1) { // DUI
		window.MinWidth = zoom(360, g_dpi);
		window.MinHeight = zoom(200, g_dpi);
	};

	ww = window.Width;
	wh = window.Height;

	resize_panels();

	// set wallpaper
	if (fb.IsPlaying) {
		p.wallpaperImg = setWallpaperImg(properties.wallpaperpath, fb.GetNowPlaying());
	} else {
		p.wallpaperImg = null;
	};

	// Set the empty rows count in playlist setup for cover column size!
	if (p.headerBar.columns[0].percent > 0) {
		//cover.resized = true;
		cover.column = true;
		cGroup.count_minimum = Math.ceil((p.headerBar.columns[0].w) / cTrack.height);
		if (cGroup.count_minimum < cGroup.default_count_minimum)
			cGroup.count_minimum = cGroup.default_count_minimum;
	} else {
		cover.column = false;
		cGroup.count_minimum = cGroup.default_count_minimum;
	};
	cover.previous_max_size = p.headerBar.columns[0].w;

	if (!g_init_on_size) {
		properties.collapseGroupsByDefault = (p.list.groupby[cGroup.pattern_idx].collapseGroupsByDefault == 0 ? false : true);
		update_playlist(properties.collapseGroupsByDefault);
		if (cPlaylistManager.visible_on_launch) {
			if (!cPlaylistManager.init_timer) {
				cPlaylistManager.init_timer = window.SetTimeout(function () {
						togglePlaylistManager();
						window.ClearTimeout(cPlaylistManager.init_timer);
						cPlaylistManager.init_timer = false;
					}, 150);
			};
		};
		g_init_on_size = true;
	};
};

//=================================================// OnPaint
function on_paint(gr) {

	if (!ww)
		return true;

	if (!g_1x1) {

		if (!cSettings.visible) {

			// draw background under playlist
			if (fb.IsPlaying && p.wallpaperImg && properties.showwallpaper) {
				gr.GdiDrawBitmap(p.wallpaperImg, 0, p.list.y, ww, wh - p.list.y, 0, p.list.y, p.wallpaperImg.Width, p.wallpaperImg.Height - p.list.y);
				gr.FillSolidRect(0, p.list.y, ww, wh - p.list.y, g_color_normal_bg & RGBA(255, 255, 255, properties.wallpaperalpha));
			} else {
				gr.FillSolidRect(0, p.list.y, ww, wh - p.list.y, g_color_normal_bg);
			};

			// List
			if (p.list) {
				if (p.list.count > 0) {
					// calculate columns metrics before drawing row contents!
					p.headerBar.calculateColumns();

					// scrollbar
					if (properties.showscrollbar && p.scrollbar && p.list.totalRows > 0 && (p.list.totalRows > p.list.totalRowVisible)) {
						p.scrollbar.visible = true;
						p.scrollbar.draw(gr);
					} else {
						p.scrollbar.visible = false;
					};

					// draw rows of the playlist
					p.list && p.list.draw(gr);

					// draw flashing beam if scroll max reached on mouse wheel! (android like effect)
					if (p.list.beam > 0) {
						var r = getRed(g_color_highlight);
						var g = getGreen(g_color_highlight);
						var b = getBlue(g_color_highlight);
						var a = Math.floor((p.list.beam_alpha <= 250 ? p.list.beam_alpha : 250) / 12);
						var beam_h = Math.floor(cTrack.height * 7 / 4);
						var alpha = (p.list.beam_alpha <= 255 ? p.list.beam_alpha : 255);
						switch (p.list.beam) {
						case 1: // top beam
							gr.DrawImage(images.beam, p.list.x, p.list.y - cHeaderBar.borderWidth * 10, p.list.w, beam_h - cHeaderBar.borderWidth, 0, 0, images.beam.Width, images.beam.Height, 180, alpha);
							break;
						case 2: // bot beam
							gr.DrawImage(images.beam, p.list.x, p.list.y + p.list.h - beam_h + cHeaderBar.borderWidth * 10, p.list.w, beam_h, 0, 0, images.beam.Width, images.beam.Height, 0, alpha);
							break;
						};
					};

				} else {

					if (plman.PlaylistCount > 0) {
						var text_top = plman.GetPlaylistName(plman.ActivePlaylist);
						var text_bot = "This playlist is empty";
					} else {
						var text_top = "JSPlaylist " + g_script_version + " coded by Br3tt - 2015";
						var text_bot = "Create a playlist to start!";
					};
					// if Search Playlist, draw image "No Result"
					if (text_top.substr(0, 8) == "Search [") {
						gr.SetTextRenderingHint(3);
						var search_text = text_top.substr(8, text_top.length - 9);
						gr.DrawString("No Result for \"" + search_text + "\"", gdi.Font(g_fname, g_fsize + 7, 0), g_color_normal_txt & 0x40ffffff, 0, 0 - zoom(20, g_dpi), ww, wh, cc_stringformat);
						gr.DrawString(text_bot, gdi.Font(g_fname, g_fsize + 2, 0), g_color_normal_txt & 0x40ffffff, 0, 0 + zoom(20, g_dpi), ww, wh, cc_stringformat);
						gr.FillGradRect(40, Math.floor(wh / 2), ww - 80, Math.floor(zoom(1, g_dpi)), 0, 0, g_color_normal_txt & 0x40ffffff, 0.5);
					} else {
						// if empty playlist, display text info
						gr.SetTextRenderingHint(3);
						gr.DrawString(text_top, gdi.Font(g_fname, g_fsize + 7, 0), g_color_normal_txt & 0x40ffffff, 0, 0 - zoom(20, g_dpi), ww, wh, cc_stringformat);
						gr.DrawString(text_bot, gdi.Font(g_fname, g_fsize + 2, 0), g_color_normal_txt & 0x40ffffff, 0, 0 + zoom(20, g_dpi), ww, wh, cc_stringformat);
						gr.FillGradRect(40, Math.floor(wh / 2), ww - 80, Math.floor(zoom(1, g_dpi)), 0, 0, g_color_normal_txt & 0x40ffffff, 0.5);
					};
				};
			};

			// draw background part above playlist (topbar + headerbar)
			if (cTopBar.visible || p.headerBar.visible) {
				if (fb.IsPlaying && p.wallpaperImg && properties.showwallpaper) {
					gr.GdiDrawBitmap(p.wallpaperImg, 0, 0, ww, p.list.y, 0, 0, p.wallpaperImg.Width, p.list.y);
					gr.FillSolidRect(0, 0, ww, p.list.y, g_color_normal_bg & RGBA(255, 255, 255, properties.wallpaperalpha));
				} else {
					gr.FillSolidRect(0, 0, ww, p.list.y, g_color_normal_bg);
				};
			};

			// TopBar
			if (cTopBar.visible) {
				p.topBar && p.topBar.draw(gr);
			}

			// HeaderBar
			if (p.headerBar.visible) {
				p.headerBar && p.headerBar.drawColumns(gr);
				if (p.headerBar.borderDragged && p.headerBar.borderDraggedId >= 0) {
					// all borders
					var fin = p.headerBar.borders.length;
					for (var b = 0; b < fin; b++) {
						var lg_x = p.headerBar.borders[b].x - 2;
						var lg_w = p.headerBar.borders[b].w;
						var segment_h = zoom(5, g_dpi);
						var gap_h = zoom(5, g_dpi);
						if (b == p.headerBar.borderDraggedId) {
							var d = ((mouse_x / zoom(10, g_dpi)) - Math.floor(mouse_x / zoom(10, g_dpi))) * zoom(10, g_dpi); // give a value between [0;9]
						} else {
							d = 5;
						};
						var ty = 0;
						for (var lg_y = p.list.y; lg_y < p.list.y + p.list.h + segment_h; lg_y += segment_h + gap_h) {
							ty = lg_y - segment_h + d;
							th = segment_h;
							if (ty < p.list.y) {
								th = th - Math.abs(p.list.y - ty);
								ty = p.list.y;
							}
							if (b == p.headerBar.borderDraggedId) {
								gr.FillSolidRect(lg_x, ty, lg_w, th, g_color_normal_txt & 0x32ffffff);
							} else {
								gr.FillSolidRect(lg_x, ty, lg_w, th, g_color_normal_txt & 0x16ffffff);
							};
						};
					};
				};
			} else {
				p.headerBar && p.headerBar.drawHiddenPanel(gr);
			};

			// PlaylistManager
			p.playlistManager && p.playlistManager.draw(gr);

			// Incremental Search Display
			if (cList.search_string.length > 0) {
				gr.SetSmoothingMode(2);
				p.list.tt_x = Math.floor(((p.list.w) / 2) - (((cList.search_string.length * zoom(13, g_dpi)) + (zoom(10, g_dpi) * 2)) / 2));
				p.list.tt_y = p.list.y + Math.floor((p.list.h / 2) - zoom(30, g_dpi));
				p.list.tt_w = Math.round((cList.search_string.length * zoom(13, g_dpi)) + (zoom(10, g_dpi) * 2));
				p.list.tt_h = zoom(60, g_dpi);
				gr.FillRoundRect(p.list.tt_x, p.list.tt_y, p.list.tt_w, p.list.tt_h, 5, 5, RGBA(0, 0, 0, 150));
				gr.DrawRoundRect(p.list.tt_x, p.list.tt_y, p.list.tt_w, p.list.tt_h, 5, 5, 1.0, RGBA(0, 0, 0, 100));
				gr.DrawRoundRect(p.list.tt_x + 1, p.list.tt_y + 1, p.list.tt_w - 2, p.list.tt_h - 2, 4, 4, 1.0, RGBA(255, 255, 255, 050));
				try {
					gr.GdiDrawText(cList.search_string, cList.incsearch_font_big, RGB(0, 0, 0), p.list.tt_x + 1, p.list.tt_y + 1, p.list.tt_w, p.list.tt_h, DT_CENTER | DT_NOPREFIX | DT_CALCRECT | DT_VCENTER);
					gr.GdiDrawText(cList.search_string, cList.incsearch_font_big, cList.inc_search_noresult ? RGB(255, 70, 70) : RGB(250, 250, 250), p.list.tt_x, p.list.tt_y, p.list.tt_w, p.list.tt_h, DT_CENTER | DT_NOPREFIX | DT_CALCRECT | DT_VCENTER);
				} catch (e) {};
			};

		} else {
			// Settings...
			p.settings && p.settings.draw(gr);
		};
	};

	// Draw dragged items and collapsable playlist manager panel
	/*
	var dragDeltaX = Math.abs(mouse_x - dragndrop.x);
	var dragDeltaY = Math.abs(mouse_y - dragndrop.y);
	if(dragndrop.moved && (dragDeltaX > 5 || dragDeltaY > 5)) {
	var dragIcon_w = 16;
	var dragIcon_h = 16;
	var linew = 1;
	gr.FillSolidRect(mouse_x - Math.round(dragIcon_w/2), mouse_y - Math.round(dragIcon_w/2), dragIcon_w, dragIcon_w, RGB(0,0,0));
	gr.FillSolidRect(mouse_x - Math.round(dragIcon_w/2) + linew, mouse_y - Math.round(dragIcon_w/2) + linew, dragIcon_w-linew*2, dragIcon_w-linew*2, RGB(255,255,255));
	gr.FillSolidRect(mouse_x - Math.round(dragIcon_w/2) - 04, mouse_y - Math.round(dragIcon_w/2) - 04, dragIcon_w, dragIcon_w, RGB(0,0,0));
	gr.FillSolidRect(mouse_x - Math.round(dragIcon_w/2) + linew - 04, mouse_y - Math.round(dragIcon_w/2) + linew - 04, dragIcon_w-linew*2, dragIcon_w-linew*2, RGB(255,255,255));
	};
	 */

	//g_repaint++;
	//var d2 = new Date();
	//var t2 = d2.getSeconds()*1000 + d2.getMilliseconds();
	//fb.trace(d2+"_"+t2+" /repaint Done # "+g_repaint);

	if (properties.showDPI) {
		gr.FillSolidRect(ww - 33, 5, 30, 15, g_color_normal_bg);
		gr.gdiDrawText(g_dpi, gdi.Font("segoe ui", 15, 1), RGB(75, 255, 75), 0, 2, ww - 5, wh - 5, DT_RIGHT | DT_TOP);
	};

	// tweaks to fix bug in timer/memory/repaint handle in WSH Panel Mod v1.5.6
	g_collect_counter++;
	if (g_collect_counter > 50) {
		g_collect_counter = 0;
		CollectGarbage();
	};
};

//=================================================// Mouse Callbacks
function on_mouse_lbtn_down(x, y) {

	if (properties.enableTouchControl) {
		cTouch.up_id = -1;
		if (cSettings.visible) {
			cTouch.down = true;
			cTouch.y_start = y;
		} else {
			if (p.list.isHoverObject(x, y) && !p.scrollbar.isHoverObject(x, y)) {
				cTouch.down = true;
				cTouch.y_start = y;
			};
		};
	};

	g_left_click_hold = true;

	// check settings
	if (cSettings.visible) {
		p.settings.on_mouse("down", x, y);
	} else {

		cover.previous_max_size = p.headerBar.columns[0].w;

		// check list
		p.list.check("down", x, y);

		// check scrollbar
		if (!cPlaylistManager.visible) {
			if (p.playlistManager.woffset == 0 && properties.showscrollbar && p.scrollbar && p.list.totalRows > 0 && (p.list.totalRows > p.list.totalRowVisible)) {
				p.scrollbar.check("down", x, y);
			};

			// check scrollbar scroll on click above or below the cursor
			if (p.scrollbar.hover && !p.scrollbar.cursorDrag) {
				var scrollstep = p.list.totalRowVisible;
				if (y < p.scrollbar.cursorPos) {
					if (!p.list.buttonclicked && !cScrollBar.timerID1) {
						p.list.buttonclicked = true;
						p.list.scrollItems(1, scrollstep);
						cScrollBar.timerID1 = window.SetTimeout(function () {
								p.list.scrollItems(1, scrollstep);
								cScrollBar.timerID1 && window.ClearTimeout(cScrollBar.timerID1);
								cScrollBar.timerID1 = false;
								cScrollBar.timerID2 && window.ClearInterval(cScrollBar.timerID2);
								cScrollBar.timerID2 = window.SetInterval(function () {
										if (p.scrollbar.hover) {
											if (mouse_x > p.scrollbar.x && p.scrollbar.cursorPos > mouse_y) {
												p.list.scrollItems(1, scrollstep);
											};
										};
									}, 60);
							}, 400);
					};
				} else {
					if (!p.list.buttonclicked && !cScrollBar.timerID1) {
						p.list.buttonclicked = true;
						p.list.scrollItems(-1, scrollstep);
						cScrollBar.timerID1 = window.SetTimeout(function () {
								p.list.scrollItems(-1, scrollstep);
								cScrollBar.timerID1 && window.ClearTimeout(cScrollBar.timerID1);
								cScrollBar.timerID1 = false;
								cScrollBar.timerID2 && window.ClearInterval(cScrollBar.timerID2);
								cScrollBar.timerID2 = window.SetInterval(function () {
										if (p.scrollbar.hover) {
											if (mouse_x > p.scrollbar.x && p.scrollbar.cursorPos + p.scrollbar.cursorHeight < mouse_y) {
												p.list.scrollItems(-1, scrollstep);
											};
										};
									}, 60);
							}, 400)
					};
				};
			};
		} else {
			p.playlistManager.check("down", x, y);
		};

		// check topbar
		if (cTopBar.visible)
			p.topBar.check("down", x, y);
		// check headerbar
		if (p.headerBar.visible)
			p.headerBar.on_mouse("down", x, y);
	};
};

function on_mouse_lbtn_dblclk(x, y, mask) {

	g_left_click_hold = true;

	// check settings
	if (cSettings.visible) {
		p.settings.on_mouse("dblclk", x, y);
	} else {
		// check list
		p.list.check("dblclk", x, y);
		// check headerbar
		if (p.headerBar.visible)
			p.headerBar.on_mouse("dblclk", x, y);

		// check scrollbar
		if (!cPlaylistManager.visible) {
			if (properties.showscrollbar && p.scrollbar && p.list.totalRows > 0 && (p.list.totalRows > p.list.totalRowVisible)) {
				p.scrollbar.check("dblclk", x, y);
				if (p.scrollbar.hover) {
					on_mouse_lbtn_down(x, y); // ...to have a scroll response on double clicking scrollbar area above or below the cursor!
				};
			};
		} else {
			p.playlistManager.check("dblclk", x, y);
		};
	};
};

function on_mouse_lbtn_up(x, y) {

	// check settings
	if (cSettings.visible) {
		p.settings.on_mouse("up", x, y);
	} else {

		// scrollbar scrolls up and down RESET
		p.list.buttonclicked = false;
		cScrollBar.timerID1 && window.ClearTimeout(cScrollBar.timerID1);
		cScrollBar.timerID1 = false;
		cScrollBar.timerID2 && window.ClearTimeout(cScrollBar.timerID2);
		cScrollBar.timerID2 = false;

		// after a cover column resize, update cover image cache
		if (cover.resized == true) {
			cover.resized = false;
			// reset cache
			if (!g_first_launch) {
				cover.max_w = (cGroup.default_collapsed_height > cGroup.default_expanded_height ? cGroup.default_collapsed_height * cTrack.height : cGroup.default_expanded_height * cTrack.height);
				g_image_cache = new image_cache;
				CollectGarbage();
			} else {
				g_first_launch = false;
			};
			update_playlist(properties.collapseGroupsByDefault);
		};

		// check list
		p.list.check("up", x, y);

		// playlist manager (if visible)
		if (p.playlistManager.woffset > 0 || cPlaylistManager.visible) {
			p.playlistManager.check("up", x, y);
		};

		// check scrollbar
		if (properties.showscrollbar && p.scrollbar && p.list.totalRows > 0 && (p.list.totalRows > p.list.totalRowVisible)) {
			p.scrollbar.check("up", x, y);
		};

		// Drop items after a drag'n drop INSIDE the playlist
		if (!properties.enableTouchControl) {
			if (p.list.ishover && dragndrop.drag_in) {
				if (dragndrop.drag_id >= 0 && dragndrop.drop_id >= 0) {
					var save_focus_handle = fb.GetFocusItem();
					var drop_handle = p.list.handleList.Item(dragndrop.drop_id);
					var nb_selected_items = p.list.metadblist_selection.Count;

					if (dragndrop.contigus_sel && nb_selected_items > 0) {
						if (dragndrop.drop_id > dragndrop.drag_id) {
							// on pointe sur le dernier item de la selection si on move vers le bas
							var new_drag_pos = p.list.handleList.Find(p.list.metadblist_selection.item(nb_selected_items - 1));
							var move_delta = dragndrop.drop_id - new_drag_pos;
						} else {
							// on pointe sur le 1er item de la selection si on move vers le haut
							var new_drag_pos = p.list.handleList.Find(p.list.metadblist_selection.item(0));
							var move_delta = dragndrop.drop_id - new_drag_pos;
						};

						plman.UndoBackup(p.list.playlist);
						plman.MovePlaylistSelection(p.list.playlist, move_delta);

					} else {

						// 1st: move selected item at the full end of the playlist to make then contigus
						g_avoid_on_item_focus_change = true;
						g_avoid_on_playlist_items_reordered = true;
						plman.UndoBackup(p.list.playlist);
						plman.MovePlaylistSelection(p.list.playlist, plman.PlaylistItemCount(p.list.playlist));
						// 2nd: move bottom selection to new drop_id place (to redefine first...)
						plman.SetPlaylistFocusItemByHandle(p.list.playlist, drop_handle);
						var drop_id_new = plman.GetPlaylistFocusItemIndex(p.list.playlist);
						plman.SetPlaylistFocusItemByHandle(p.list.playlist, save_focus_handle);
						if (dragndrop.drag_id > drop_id_new) {
							var mdelta = p.list.count - nb_selected_items - drop_id_new;
						} else {
							var mdelta = p.list.count - nb_selected_items - drop_id_new - 1;
						};
						plman.MovePlaylistSelection(p.list.playlist, mdelta * -1);
						g_avoid_on_playlist_items_reordered = false;
						g_avoid_on_item_focus_change = false;
					};
				};
			};
		};

		dragndrop.drag_id = -1;
		dragndrop.drop_id = -1;
		dragndrop.drag_in = false;
		dragndrop.moved = false;
		dragndrop.clicked = false;
		dragndrop.moved = false;
		dragndrop.x = 0;
		dragndrop.y = 0;
		dragndrop.timerID && window.ClearTimeout(dragndrop.timerID);
		dragndrop.timerID = false;
		//window.SetCursor(IDC_ARROW);

		// check topbar
		if (cTopBar.visible)
			p.topBar.check("up", x, y);

		// check headerbar
		if (p.headerBar.visible)
			p.headerBar.on_mouse("up", x, y);

		// repaint on mouse up to refresh covers just loaded
		full_repaint();
	};

	if (cTouch.down) {
		cTouch.down = false;
		cTouch.y_start = y;
		cTouch.down_id = cTouch.up_id;
	};

	g_left_click_hold = false;
};

function on_mouse_rbtn_down(x, y) {
	if (!g_left_click_hold) {
		// check settings
		if (cSettings.visible) {
			p.settings.on_mouse("right", x, y);
		} else {
			// check list
			p.list.check("right", x, y);
			// check topBar
			if (cTopBar.visible)
				p.topBar.check("right", x, y);
			// check headerbar
			if (p.headerBar.visible)
				p.headerBar.on_mouse("right", x, y);
			// playlist manager
			if (p.playlistManager.ishoverItem || p.playlistManager.ishoverHeader) {
				p.playlistManager.check("right", x, y);
			};
		};
	};
};

function on_mouse_rbtn_up(x, y) {
	if (!utils.IsKeyPressed(VK_SHIFT)) {
		return true;
	};
};

function on_mouse_move(x, y) {

	if (x == mouse_x && y == mouse_y)
		return true;

	if (x >= 0 && x < ww && y >= 0 && y < wh)
		g_leave = false;

	// check settings
	if (cSettings.visible) {

		if (cTouch.down) {
			cTouch.y_end = y;
			var y_delta = (cTouch.y_end - cTouch.y_start);
			if (x < p.list.w) {
				if (y_delta > p.settings.h / cSettings.rowHeight) {
					on_mouse_wheel(1); // scroll up
					cTouch.y_start = cTouch.y_end;
				};
				if (y_delta < -p.settings.h / cSettings.rowHeight) {
					on_mouse_wheel(-1); // scroll down
					cTouch.y_start = cTouch.y_end;
				};
			};
		};
		p.settings.on_mouse("move", x, y);

	} else {

		if (cTouch.down) {

			if (p.headerBar.columnDragged < 1 && !p.headerBar.borderDragged) {
				cTouch.y_end = y;
				var y_delta = (cTouch.y_end - cTouch.y_start);
				if (x < p.list.w) {
					if (y_delta > p.list.h / cTrack.height) {
						on_mouse_wheel(1); // scroll up
						cTouch.y_start = cTouch.y_end;
					};
					if (y_delta < -p.list.h / cTrack.height) {
						on_mouse_wheel(-1); // scroll down
						cTouch.y_start = cTouch.y_end;
					};
				};
			};

		} else {

			// playlist manager (if visible)
			if (p.playlistManager.woffset > 0) {
				if (!cPlaylistManager.blink_timer) {
					p.playlistManager.check("move", x, y);
				};
			};

			// check list
			p.list.check("move", x, y);

			// check scrollbar
			if (!cPlaylistManager.visible) {
				if (properties.showscrollbar && p.scrollbar && p.list.totalRows > 0 && (p.list.totalRows > p.list.totalRowVisible)) {
					p.scrollbar.check("move", x, y);
				};
			};

			// check topbar
			if (cTopBar.visible)
				p.topBar.check("move", x, y);

			// check headerbar
			if (p.headerBar.visible)
				p.headerBar.on_mouse("move", x, y);

			// if cover column resized (or init), refresh column cover, minimum count, ... and playlist
			if (cover.previous_max_size != p.headerBar.columns[0].w) {
				cover.resized = true;
				if (p.headerBar.columns[0].w > 0) {
					cover.column = true;
					cGroup.count_minimum = Math.ceil((p.headerBar.columns[0].w) / cTrack.height);
					if (cGroup.count_minimum < cGroup.default_count_minimum)
						cGroup.count_minimum = cGroup.default_count_minimum;
				} else {
					cover.column = false;
					cGroup.count_minimum = cGroup.default_count_minimum;
				};
				cover.previous_max_size = p.headerBar.columns[0].w;
			};

			// check toolbar for mouse icon dragging mode ***
			if (p.list.mclicked && !p.headerBar.borderDragged && !p.headerBar.columnDragged) {
				if (p.list.ishover || p.playlistManager.ishover || p.playlistManager.ishoverHeader) {
					if (dragndrop.enabled && (dragndrop.drag_in || dragndrop.moved)) {
						if ((p.playlistManager.ishover && p.playlistManager.hoverId == -1) || p.playlistManager.scrollbar.isHoverScrollbar) {
							if (!p.playlistManager.ishoverHeader) {
								window.SetCursor(IDC_NO);
							} else {
								window.SetCursor(IDC_HELP);
							};
						} else {
							if (p.playlistManager.ishover && (p.playlistManager.playlists[p.playlistManager.hoverId].isAutoPlaylist || p.playlistManager.playlists[p.playlistManager.hoverId].isReservedPlaylist || p.playlistManager.playlists[p.playlistManager.hoverId].idx == plman.ActivePlaylist)) {
								window.SetCursor(IDC_NO);
							} else {
								window.SetCursor(IDC_HELP);
							};
						};
					} else {
						window.SetCursor(IDC_ARROW);
					};
				} else {
					if (dragndrop.enabled && (dragndrop.drag_in || dragndrop.moved)) {
						window.SetCursor(IDC_NO);
					} else {
						window.SetCursor(IDC_ARROW);
					};
				};
			};
			if (cPlaylistManager.drag_moved) {
				if (p.playlistManager.ishoverItem) {
					window.SetCursor(IDC_HELP);
				} else {
					window.SetCursor(IDC_NO);
				};
			};

			// if Dragging Track on playlist, scroll playlist if required
			if (dragndrop.drag_in) {
				// Dragn Drop
				if (p.playlistManager.woffset == 0 || (cPlaylistManager.visible && x < p.playlistManager.x - p.playlistManager.woffset)) {
					if (y < p.list.y) {
						if (!p.list.buttonclicked) {
							p.list.buttonclicked = true;
							//
							var scroll_speed_ms = 5;
							//
							if (!cScrollBar.timerID1) {
								cScrollBar.timerID1 = window.SetInterval(function () {
										on_mouse_wheel(1);
									}, scroll_speed_ms);
							};
						} else {
							full_repaint();
						};
					} else if (y > p.list.y + p.list.h) {
						if (!p.list.buttonclicked) {
							p.list.buttonclicked = true;
							//
							var scroll_speed_ms = 5;
							//
							if (!cScrollBar.timerID1) {
								cScrollBar.timerID1 = window.SetInterval(function () {
										on_mouse_wheel(-1);
									}, scroll_speed_ms);
							};
						} else {
							full_repaint();
						};
					} else {
						cScrollBar.timerID1 && window.ClearInterval(cScrollBar.timerID1);
						cScrollBar.timerID1 = false;
						p.list.buttonclicked = false;
						if (!dragndrop.timerID) {
							dragndrop.timerID = window.SetTimeout(function () {
									full_repaint();
									dragndrop.timerID && window.ClearTimeout(dragndrop.timerID);
									dragndrop.timerID = false;
								}, 75);
						};
					};
				} else {
					cScrollBar.timerID1 && window.ClearInterval(cScrollBar.timerID1);
					cScrollBar.timerID1 = false;
				};
			};
		};
	};

	// save coords
	mouse_x = x;
	mouse_y = y;
};

function on_mouse_wheel(delta) {

	if (g_middle_clicked)
		return;

	if (utils.IsKeyPressed(VK_CONTROL)) {
		var zoomStep = 15;
		if (delta > 0) {
			g_forced_percent = (g_forced_percent < g_dpi_percent ? g_dpi_percent + zoomStep : g_forced_percent + zoomStep);
			if (g_forced_percent > 250)
				g_forced_percent = 250;
		} else {
			g_forced_percent -= zoomStep;
			if (g_forced_percent <= g_dpi_percent)
				g_forced_percent = 0;
		};
		window.SetProperty("SYSTEM.dpi (0 = Default)", g_forced_percent);
		g_dpi = (g_forced_percent == 0 ? g_dpi_percent : g_forced_percent);
		adjustMetrics(1);
		resize_panels();
		full_repaint();
	} else {
		// check settings
		if (cSettings.visible) {
			p.settings.on_mouse("wheel", mouse_x, mouse_y, delta);
			if (cSettings.wheel_timer) {
				window.ClearTimeout(cSettings.wheel_timer);
				cSettings.wheel_timer = false;
			};
			cSettings.wheel_timer = window.SetTimeout(function () {
					on_mouse_move(mouse_x + 1, mouse_y + 1);
					window.ClearTimeout(cSettings.wheel_timer);
					cSettings.wheel_timer = false;
				}, 50);
		} else {

			// handle p.list Beam
			var limit_reached = false;
			var maxOffset = (p.list.totalRows > p.list.totalRowVisible ? p.list.totalRows - p.list.totalRowVisible : 0);
			if (maxOffset > 0) {
				if (delta > 0) { // scroll up requested
					if (p.list.offset == 0) {
						// top beam to draw
						p.list.beam = 1;
						cList.beam_sens = 1;
						limit_reached = true;
					};
				} else { // scroll down requested
					if (p.list.offset >= maxOffset) {
						// bottom beam to draw
						p.list.beam = 2;
						cList.beam_sens = 1;
						limit_reached = true;
					};
				};
				if (limit_reached) {
					if (!cList.beam_timer) {
						p.list.beam_alpha = 0;
						cList.beam_timer = window.SetInterval(function () {
								if (cList.beam_sens == 1) {
									p.list.beam_alpha = (p.list.beam_alpha <= 275 ? p.list.beam_alpha + 25 : 300);
									if (p.list.beam_alpha >= 300) {
										cList.beam_sens = 2;
									};
								} else {
									p.list.beam_alpha = (p.list.beam_alpha >= 25 ? p.list.beam_alpha - 25 : 0);
									if (p.list.beam_alpha <= 0) {
										p.list.beam = 0;
										window.ClearInterval(cList.beam_timer);
										cList.beam_timer = false;
									};
								};
								full_repaint();
							}, 32);
					};
				};
			};

			reset_cover_timers();

			if (p.list.ishover || cScrollBar.timerID1 || cList.repaint_timer) {
				// timer to tell to other functions (on cover load asynch done, ...) that a repaint is already running
				if (!g_mouse_wheel_timer) {
					// set scroll speed / mouse y offset from panel limits
					if (g_dragndrop_status) {
						if (g_dragndrop_y < p.list.y + cTrack.height) {
							var s = Math.abs(g_dragndrop_y - (p.list.y + cTrack.height));
							var h = Math.ceil(cTrack.height / 2);
							if (s > h)
								s = h;
							var t = h - s + 1;
							var r = Math.round(500 / h);
							var scroll_speed_ms = ((t * r) < 10 ? 10 : (t * r));
						} else if (g_dragndrop_y > p.list.y + p.list.h - cTrack.height) {
							var s = Math.abs(g_dragndrop_y - (p.list.y + p.list.h - cTrack.height));
							var h = Math.ceil(cTrack.height / 2);
							if (s > h)
								s = h;
							var t = h - s + 1;
							var r = Math.round(500 / h);
							var scroll_speed_ms = ((t * r) < 10 ? 10 : (t * r));
						} else {
							scroll_speed_ms = 20;
						};
					} else {
						if (mouse_y < p.list.y) {
							var s = Math.abs(mouse_y - p.list.y);
							var h = Math.ceil(cTrack.height / 2);
							if (s > h)
								s = h;
							var t = h - s + 1;
							var r = Math.round(500 / h);
							var scroll_speed_ms = ((t * r) < 10 ? 10 : (t * r));
						} else if (mouse_y > p.list.y + p.list.h) {
							var s = Math.abs(mouse_y - (p.list.y + p.list.h));
							var h = Math.ceil(cTrack.height / 2);
							if (s > h)
								s = h;
							var t = h - s + 1;
							var r = Math.round(500 / h);
							var scroll_speed_ms = ((t * r) < 10 ? 10 : (t * r));
						} else {
							scroll_speed_ms = 20;
						};
					};
					//
					g_mouse_wheel_timer = window.SetTimeout(function () {
							var cw = cover.column ? ((p.headerBar.columns[0].w <= cover.max_w) ? cover.max_w : p.headerBar.columns[0].w) : cover.max_w;
							var ch = cw;
							p.list.scrollItems(delta, properties.enableTouchControl ? cList.touchstep : cList.scrollstep);
							g_mouse_wheel_timer && window.ClearTimeout(g_mouse_wheel_timer);
							g_mouse_wheel_timer = false;
						}, scroll_speed_ms);
				};
			} else {
				if (!dragndrop.moved) {
					p.playlistManager.check("wheel", mouse_x, mouse_y, delta);
				};
			};
		};
	};
};

function on_mouse_mbtn_down(x, y, mask) {
	g_middle_clicked = true;
	togglePlaylistManager();
};

function on_mouse_mbtn_dblclk(x, y, mask) {
	on_mouse_mbtn_down(x, y, mask);
};

function on_mouse_mbtn_up(x, y, mask) {
	if (g_middle_click_timer) {
		window.ClearTimeout(g_middle_click_timer);
		g_middle_click_timer = false;
	};
	g_middle_click_timer = window.SetTimeout(function () {
			g_middle_clicked = false;
			window.ClearTimeout(g_middle_click_timer);
			g_middle_click_timer = false;
		}, 250);
};

function on_mouse_leave() {
	g_leave = true;

	p.list.check("leave", 0, 0);

	if (properties.showscrollbar && p.scrollbar && p.list.totalRows > 0 && (p.list.totalRows > p.list.totalRowVisible)) {
		p.scrollbar.check("leave", 0, 0);
	};

	p.topBar.check("leave", 0, 0);

	p.headerBar.on_mouse("leave", 0, 0);

	p.playlistManager.check("leave", 0, 0);
};

//=================================================// Callbacks

function update_playlist(iscollapsed) {
	if (g_selHolder)
		g_selHolder.Dispose();
	g_selHolder = fb.AcquireUiSelectionHolder();
	// activate playlist selection tracking
	g_selHolder.SetPlaylistSelectionTracking();

	g_group_id_focused = 0;
	p.list.updateHandleList(plman.ActivePlaylist, iscollapsed);

	p.list.setItems(false);
	p.scrollbar.setCursor(p.list.totalRowVisible, p.list.totalRows, p.list.offset);
	// if sort by header click was requested, reset mouse cursor to default
	if (cHeaderBar.sortRequested) {
		window.SetCursor(IDC_ARROW);
		cHeaderBar.sortRequested = false;
	};
};

function on_playlist_switch() {
	update_playlist(properties.collapseGroupsByDefault);
	p.topBar.setDatas();
	p.headerBar.resetSortIndicators();
	full_repaint();
};

function on_playlists_changed() {

	if (!g_avoid_on_playlists_changed) {

		if (cPlaylistManager.mediaLibraryPlaylist)
			checkMediaLibrayPlaylist();

		if (plman.ActivePlaylist < 0 || plman.ActivePlaylist > plman.PlaylistCount - 1) {
			plman.ActivePlaylist = 0;
		};

		// close timers if dragging tracks is running
		if (dragndrop.drag_in || dragndrop.moved) {
			if (dragndrop.timerID) {
				window.ClearTimeout(dragndrop.timerID);
				dragndrop.timerID = false;
			};
			dragndrop.drag_in = false;
			dragndrop.moved = false;
			dragndrop.x = 0;
			dragndrop.y = 0;
			if (!cPlaylistManager.visible) {
				if (cPlaylistManager.hscroll_timer) {
					window.ClearTimeout(cPlaylistManager.hscroll_timer);
					cPlaylistManager.hscroll_timer = false;
				};
				p.playlistManager.woffset = 0;
				if (cPlaylistManager.vscroll_timer) {
					window.ClearTimeout(cPlaylistManager.vscroll_timer);
					cPlaylistManager.vscroll_timer = false;
				};
				p.playlistManager.woffset = 0;
				on_mouse_move(mouse_x + 1, mouse_y); // to reset window cursor style to a simple arrow
			};
		};

		p.list.playlist = plman.ActivePlaylist;
		p.topBar.setDatas();
		if (cPlaylistManager.visible) {
			if (cPlaylistManager.drag_droped) { // no reset of the scroll offset if playlist item moved by dragging
				window.SetCursor(IDC_ARROW);
				p.playlistManager.refresh("", false, false, false);
			} else {
				p.playlistManager.refresh("", false, false);
			};
		} else {
			p.playlistManager.refresh("", true, true);
		};
		full_repaint();
	};
};

function on_playlist_items_added(playlist_idx) {
	if (!g_avoid_on_playlist_items_added) {
		if (playlist_idx == p.list.playlist) {
			update_playlist(properties.collapseGroupsByDefault);
			p.topBar.setDatas();
			p.headerBar.resetSortIndicators();
			full_repaint();
		};
	};
};

function on_playlist_items_removed(playlist_idx, new_count) {
	if (!g_avoid_on_playlist_items_removed) {
		if (playlist_idx == p.list.playlist) {
			update_playlist(properties.collapseGroupsByDefault);
			p.topBar.setDatas();
			p.headerBar.resetSortIndicators();
			full_repaint();
		};
	};
};

function on_playlist_items_reordered(playlist_idx) {
	if (!g_avoid_on_playlist_items_reordered) {
		if (playlist_idx == p.list.playlist && p.headerBar.columnDragged == 0) {
			update_playlist(properties.collapseGroupsByDefault);
			p.headerBar.resetSortIndicators();
			full_repaint();
		} else {
			p.headerBar.columnDragged = 0;
		};
	};
};

function on_playlist_items_selection_change() {
	full_repaint();
};

function on_selection_changed(metadb) {};

function on_item_focus_change(playlist, from, to) {
	if (!g_avoid_on_item_focus_change) {
		g_metadb = (fb.IsPlaying || fb.IsPaused) ? fb.GetNowPlaying() : plman.PlaylistItemCount(plman.ActivePlaylist) > 0 ? fb.GetFocusItem() : false;
		if (g_metadb) {
			on_metadb_changed();
		} else {
			g_path = "";
			g_track_type = "";
		};
		if (playlist == p.list.playlist) {
			p.list.focusedTrackId = to;
			plman.SetActivePlaylistContext();
			var center_focus_item = p.list.isFocusedItemVisible();

			if (properties.autocollapse) { // && !center_focus_item
				var grpId = p.list.getGroupIdfromTrackId(to);
				if (grpId >= 0) {
					if (p.list.groups[grpId].collapsed) {
						p.list.updateGroupStatus(grpId);
						p.list.setItems(true);
						center_focus_item = p.list.isFocusedItemVisible();
					} else {
						if ((!center_focus_item && !p.list.drawRectSel) || (center_focus_item && to == 0)) {
							p.list.setItems(true);
						};
					};
				};
			} else {
				if ((!center_focus_item && !p.list.drawRectSel) || (center_focus_item && to == 0)) {
					p.list.setItems(true);
				};
			};
			p.scrollbar.setCursor(p.list.totalRowVisible, p.list.totalRows, p.list.offset);
		};
	};
};

function on_metadb_changed(metadb_or_metadbs, fromhook) {
	if (g_metadb) {
		g_path = tf_path.EvalWithMetadb(g_metadb);
		g_track_type = TrackType(g_path);
	};
	// rebuild list to draw
	p.list.setItems(false);
	full_repaint();
};

//=================================================// Keyboard Callbacks
function on_key_up(vkey) {
	if (cSettings.visible) {
		var fin = p.settings.pages[p.settings.currentPageId].elements.length;
		for (var j = 0; j < fin; j++) {
			p.settings.pages[p.settings.currentPageId].elements[j].on_key("up", vkey);
		};
	} else {

		// after a cover column resize, update cover image and empty rows to show the whole cover if low tracks count in group
		if (cover.resized == true) {
			cover.resized = false;
			update_playlist(properties.collapseGroupsByDefault);
		};

		// scroll keys up and down RESET (step and timers)
		p.list.keypressed = false;
		cScrollBar.timerID1 && window.ClearTimeout(cScrollBar.timerID1);
		cScrollBar.timerID1 = false;
		cScrollBar.timerID2 && window.ClearTimeout(cScrollBar.timerID2);
		cScrollBar.timerID2 = false;
		if (vkey == VK_SHIFT) {
			p.list.SHIFT_start_id = null;
			p.list.SHIFT_count = 0;
		};
	};
};

function on_key_down(vkey) {

	var mask = GetKeyboardMask();

	if (cSettings.visible) {
		g_textbox_tabbed = false;
		var fin = p.settings.pages[p.settings.currentPageId].elements.length;
		for (var j = 0; j < fin; j++) {
			p.settings.pages[p.settings.currentPageId].elements[j].on_key("down", vkey);
		};
	} else {
		if (dragndrop.drag_in)
			return true;

		if (p.playlistManager.inputboxID >= 0) {

			var act_pls = plman.ActivePlaylist;

			if (mask == KMask.none) {
				switch (vkey) {
				case VK_ESCAPE:
				case 222:
					p.playlistManager.inputboxID = -1;
					full_repaint();
					break;
				default:
					p.playlistManager.inputbox.on_key_down(vkey);
				};
			} else {
				p.playlistManager.inputbox.on_key_down(vkey);
			};

		} else {

			var act_pls = plman.ActivePlaylist;

			if (mask == KMask.none) {
				switch (vkey) {
				case VK_F2:
					// rename playlist (playlist manager panel visible)
					if (cPlaylistManager.visible) {
						var id = plman.ActivePlaylist;
						p.playlistManager.inputbox = new oInputbox(p.playlistManager.w - p.playlistManager.border - p.playlistManager.scrollbarWidth - 40, cPlaylistManager.rowHeight - 10, plman.GetPlaylistName(id), "", g_color_normal_txt, g_color_normal_bg, RGB(0, 0, 0), g_color_selected_bg & 0xccffffff, "renamePlaylist()", "p.playlistManager", 0, g_fsize, 225);
						p.playlistManager.inputboxID = id;
						// activate box content + selection activated
						if (cPlaylistManager.inputbox_timer) {
							window.ClearTimeout(cPlaylistManager.inputbox_timer);
							cPlaylistManager.inputbox_timer = false;
						};
						cPlaylistManager.inputbox_timer = window.SetTimeout(inputboxPlaylistManager_activate, 20);
					}
					break;
				case VK_F5:
					// refresh covers
					g_image_cache = new image_cache;
					CollectGarbage();
					full_repaint();
					break;
				case VK_F6:
					properties.showDPI = !properties.showDPI;
					window.SetProperty("SYSTEM.Show DPI", properties.showDPI);
					full_repaint();
					break;
				case VK_TAB:
					togglePlaylistManager();
					break;
				case VK_BACK:
					if (cList.search_string.length > 0) {
						cList.inc_search_noresult = false;
						p.list.tt_x = ((p.list.w) / 2) - (((cList.search_string.length * zoom(13, g_dpi)) + (zoom(10, g_dpi) * 2)) / 2);
						p.list.tt_y = p.list.y + Math.floor((p.list.h / 2) - zoom(30, g_dpi));
						p.list.tt_w = ((cList.search_string.length * zoom(13, g_dpi)) + (zoom(10, g_dpi) * 2));
						p.list.tt_h = zoom(60, g_dpi);
						cList.search_string = cList.search_string.substring(0, cList.search_string.length - 1);
						full_repaint();
						cList.clear_incsearch_timer && window.ClearTimeout(cList.clear_incsearch_timer);
						cList.clear_incsearch_timer = false;
						cList.incsearch_timer && window.ClearTimeout(cList.incsearch_timer);
						cList.incsearch_timer = window.SetTimeout(function () {
								p.list.incrementalSearch();
								window.ClearTimeout(cList.incsearch_timer);
								cList.incsearch_timer = false;
								cList.inc_search_noresult = false;
							}, 400);
					};
					break;
				case VK_ESCAPE:
				case 222:
					p.playlistManager.inputboxID = -1;
					//
					p.list.tt_x = ((p.list.w) / 2) - (((cList.search_string.length * zoom(13, g_dpi)) + (zoom(10, g_dpi) * 2)) / 2);
					p.list.tt_y = p.list.y + Math.floor((p.list.h / 2) - zoom(30, g_dpi));
					p.list.tt_w = ((cList.search_string.length * zoom(13, g_dpi)) + (zoom(10, g_dpi) * 2));
					p.list.tt_h = zoom(60, g_dpi);
					cList.search_string = "";
					window.RepaintRect(0, p.list.tt_y - 2, p.list.w, p.list.tt_h + 4);
					break;
				case VK_UP:
					var scrollstep = 1;
					var new_focus_id = 0;
					if (p.list.count > 0 && !p.list.keypressed && !cScrollBar.timerID1) {
						p.list.keypressed = true;
						reset_cover_timers();

						if (p.list.focusedTrackId < 0) {
							var old_grpId = 0;
						} else {
							var old_grpId = p.list.getGroupIdfromTrackId(p.list.focusedTrackId);
						};
						new_focus_id = (p.list.focusedTrackId > 0) ? p.list.focusedTrackId - scrollstep : 0;
						var grpId = p.list.getGroupIdfromTrackId(new_focus_id);
						if (!properties.autocollapse) {
							if (p.list.groups[old_grpId].collapsed) {
								if (old_grpId > 0 && old_grpId == grpId) {
									new_focus_id = (p.list.groups[grpId].start > 0) ? p.list.groups[grpId].start - scrollstep : 0;
									var grpId = p.list.getGroupIdfromTrackId(new_focus_id);
								};
							};
						};

						//new_focus_id = (p.list.focusedTrackId > 0) ? p.list.focusedTrackId - scrollstep : 0;
						// if new track focused id is in a collapsed group, set the 1st track of the group as the focused track (= group focused)
						//var grpId = p.list.getGroupIdfromTrackId(new_focus_id);
						if (p.list.groups[grpId].collapsed) {
							if (properties.autocollapse) {
								new_focus_id = p.list.groups[grpId].start + p.list.groups[grpId].count - 1;
							} else {
								new_focus_id = p.list.groups[grpId].start;
							};
						};
						if (p.list.focusedTrackId == 0 && p.list.offset > 0) {
							p.list.scrollItems(1, scrollstep);
							cScrollBar.timerID1 = window.SetTimeout(function () {
									p.list.scrollItems(1, scrollstep);
									cScrollBar.timerID1 && window.ClearTimeout(cScrollBar.timerID1);
									cScrollBar.timerID1 = false;
									cScrollBar.timerID2 && window.ClearInterval(cScrollBar.timerID2);
									cScrollBar.timerID2 = window.SetInterval(function () {
											p.list.scrollItems(1, scrollstep);
										}, 50);
								}, 400);
						} else {
							plman.SetPlaylistFocusItem(act_pls, new_focus_id);
							plman.ClearPlaylistSelection(act_pls);
							plman.SetPlaylistSelectionSingle(act_pls, new_focus_id, true);
							cScrollBar.timerID1 = window.SetTimeout(function () {
									cScrollBar.timerID1 && window.ClearTimeout(cScrollBar.timerID1);
									cScrollBar.timerID1 = false;
									cScrollBar.timerID2 && window.ClearInterval(cScrollBar.timerID2);
									cScrollBar.timerID2 = window.SetInterval(function () {
											new_focus_id = (p.list.focusedTrackId > 0) ? p.list.focusedTrackId - scrollstep : 0;
											// if new track focused id is in a collapsed group, set the 1st track of the group as the focused track (= group focused)
											var grpId = p.list.getGroupIdfromTrackId(new_focus_id);
											if (p.list.groups[grpId].collapsed) {
												if (properties.autocollapse) {
													new_focus_id = p.list.groups[grpId].start + p.list.groups[grpId].count - 1;
												} else {
													new_focus_id = p.list.groups[grpId].start;
												};
											};
											plman.SetPlaylistFocusItem(act_pls, new_focus_id);
											plman.ClearPlaylistSelection(act_pls);
											plman.SetPlaylistSelectionSingle(act_pls, new_focus_id, true);
										}, 50);
								}, 400);
						};
					};
					break;
				case VK_DOWN:
					var new_focus_id = 0;
					if (p.list.count > 0 && !p.list.keypressed && !cScrollBar.timerID1) {
						p.list.keypressed = true;
						reset_cover_timers();

						if (p.list.focusedTrackId < 0) {
							var old_grpId = 0;
						} else {
							var old_grpId = p.list.getGroupIdfromTrackId(p.list.focusedTrackId);
						};
						new_focus_id = (p.list.focusedTrackId < p.list.count - 1) ? p.list.focusedTrackId + 1 : p.list.count - 1;
						var grpId = p.list.getGroupIdfromTrackId(new_focus_id);
						if (!properties.autocollapse) {
							if (p.list.groups[old_grpId].collapsed) {
								if (old_grpId < (p.list.groups.length - 1) && old_grpId == grpId) {
									new_focus_id = ((p.list.groups[grpId].start + p.list.groups[grpId].count - 1) < (p.list.count - 1)) ? (p.list.groups[grpId].start + p.list.groups[grpId].count - 1) + 1 : p.list.count - 1;
									var grpId = p.list.getGroupIdfromTrackId(new_focus_id);
								};
							};
						};

						//new_focus_id = (p.list.focusedTrackId < p.list.count - 1) ? p.list.focusedTrackId + 1 : p.list.count - 1;
						// if new track focused id is in a collapsed group, set the last track of the group as the focused track (= group focused)
						//var grpId = p.list.getGroupIdfromTrackId(new_focus_id);
						if (p.list.groups[grpId].collapsed) {
							if (properties.autocollapse) {
								new_focus_id = p.list.groups[grpId].start;
							} else {
								new_focus_id = p.list.groups[grpId].start + p.list.groups[grpId].count - 1;
							};
						};
						plman.SetPlaylistFocusItem(act_pls, new_focus_id);
						plman.ClearPlaylistSelection(act_pls);
						plman.SetPlaylistSelectionSingle(act_pls, new_focus_id, true);
						cScrollBar.timerID1 = window.SetTimeout(function () {
								cScrollBar.timerID1 && window.ClearTimeout(cScrollBar.timerID1);
								cScrollBar.timerID1 = false;
								cScrollBar.timerID2 && window.ClearInterval(cScrollBar.timerID2);
								cScrollBar.timerID2 = window.SetInterval(function () {
										new_focus_id = (p.list.focusedTrackId < p.list.count - 1) ? p.list.focusedTrackId + 1 : p.list.count - 1;
										// if new track focused id is in a collapsed group, set the last track of the group as the focused track (= group focused)
										var grpId = p.list.getGroupIdfromTrackId(new_focus_id);
										if (p.list.groups[grpId].collapsed) {
											if (properties.autocollapse) {
												new_focus_id = p.list.groups[grpId].start;
											} else {
												new_focus_id = p.list.groups[grpId].start + p.list.groups[grpId].count - 1;
											};
										};
										plman.SetPlaylistFocusItem(act_pls, new_focus_id);
										plman.ClearPlaylistSelection(act_pls);
										plman.SetPlaylistSelectionSingle(act_pls, new_focus_id, true);
									}, 50);
							}, 400);
					};
					break;
				case VK_PGUP:
					var scrollstep = p.list.totalRowVisible;
					var new_focus_id = 0;
					if (p.list.count > 0 && !p.list.keypressed && !cScrollBar.timerID1) {
						p.list.keypressed = true;
						reset_cover_timers();
						new_focus_id = (p.list.focusedTrackId > scrollstep) ? p.list.focusedTrackId - scrollstep : 0;
						if (p.list.focusedTrackId == 0 && p.list.offset > 0) {
							p.list.scrollItems(1, scrollstep);
							cScrollBar.timerID1 = window.SetTimeout(function () {
									p.list.scrollItems(1, scrollstep);
									cScrollBar.timerID1 && window.ClearTimeout(cScrollBar.timerID1);
									cScrollBar.timerID1 = false;
									cScrollBar.timerID2 && window.ClearInterval(cScrollBar.timerID2);
									cScrollBar.timerID2 = window.SetInterval(function () {
											p.list.scrollItems(1, scrollstep);
										}, 60);
								}, 400);
						} else {
							plman.SetPlaylistFocusItem(act_pls, new_focus_id);
							plman.ClearPlaylistSelection(act_pls);
							plman.SetPlaylistSelectionSingle(act_pls, new_focus_id, true);
							cScrollBar.timerID1 = window.SetTimeout(function () {
									cScrollBar.timerID1 && window.ClearTimeout(cScrollBar.timerID1);
									cScrollBar.timerID1 = false;
									cScrollBar.timerID2 && window.ClearInterval(cScrollBar.timerID2);
									cScrollBar.timerID2 = window.SetInterval(function () {
											new_focus_id = (p.list.focusedTrackId > scrollstep) ? p.list.focusedTrackId - scrollstep : 0;
											plman.SetPlaylistFocusItem(act_pls, new_focus_id);
											plman.ClearPlaylistSelection(act_pls);
											plman.SetPlaylistSelectionSingle(act_pls, new_focus_id, true);
										}, 60);
								}, 400);
						};
					};
					break;
				case VK_PGDN:
					var scrollstep = p.list.totalRowVisible;
					var new_focus_id = 0;
					if (p.list.count > 0 && !p.list.keypressed && !cScrollBar.timerID1) {
						p.list.keypressed = true;
						reset_cover_timers();
						new_focus_id = (p.list.focusedTrackId < p.list.count - scrollstep) ? p.list.focusedTrackId + scrollstep : p.list.count - 1;
						plman.SetPlaylistFocusItem(act_pls, new_focus_id);
						plman.ClearPlaylistSelection(act_pls);
						plman.SetPlaylistSelectionSingle(act_pls, new_focus_id, true);
						cScrollBar.timerID1 = window.SetTimeout(function () {
								cScrollBar.timerID1 && window.ClearTimeout(cScrollBar.timerID1);
								cScrollBar.timerID1 = false;
								cScrollBar.timerID2 && window.ClearInterval(cScrollBar.timerID2);
								cScrollBar.timerID2 = window.SetInterval(function () {
										new_focus_id = (p.list.focusedTrackId < p.list.count - scrollstep) ? p.list.focusedTrackId + scrollstep : p.list.count - 1;
										plman.SetPlaylistFocusItem(act_pls, new_focus_id);
										plman.ClearPlaylistSelection(act_pls);
										plman.SetPlaylistSelectionSingle(act_pls, new_focus_id, true);
									}, 60);
							}, 400);
					};
					break;
				case VK_RETURN:
					// play/enqueue focused item
					if (!isQueuePlaylistActive()) {
						var cmd = properties.defaultPlaylistItemAction;
						if (cmd == "Play") {
							plman.ExecutePlaylistDefaultAction(act_pls, p.list.focusedTrackId);
						} else {
							fb.RunContextCommandWithMetadb(cmd, p.list.handleList.Item(p.list.focusedTrackId), 0);
						};
					};
					break;
				case VK_END:
					if (p.list.count > 0) {
						plman.SetPlaylistFocusItem(act_pls, p.list.count - 1);
						plman.ClearPlaylistSelection(act_pls);
						plman.SetPlaylistSelectionSingle(act_pls, p.list.count - 1, true);
					};
					break;
				case VK_HOME:
					if (p.list.count > 0) {
						plman.SetPlaylistFocusItem(act_pls, 0);
						plman.ClearPlaylistSelection(act_pls);
						plman.SetPlaylistSelectionSingle(act_pls, 0, true);
					};
					break;
				case VK_DELETE:
					if (!plman.IsAutoPlaylist(act_pls)) {
						plman.UndoBackup(act_pls);
						if (isQueuePlaylistActive()) {
							var affected_items = Array();
							var first_focus_id = null;
							var next_focus_id = null;
							for (var k = 0; k < p.list.count; k++) {
								if (plman.IsPlaylistItemSelected(act_pls, k)) {
									affected_items.push(k);
									if (first_focus_id == null)
										fist_focus_id = k;
									next_focus_id = k + 1;
								};
							};
							if (next_focus_id >= p.list.count) {
								next_focus_id = first_focus_id;
							};
							if (next_focus_id != null) {
								plman.SetPlaylistFocusItem(act_pls, next_focus_id);
								plman.SetPlaylistSelectionSingle(act_pls, next_focus_id, true);
							};
							plman.RemoveItemsFromPlaybackQueue(affected_items);
						} else {
							plman.RemovePlaylistSelection(act_pls, false);
						};
						plman.RemovePlaylistSelection(act_pls, false);
						plman.SetPlaylistSelectionSingle(act_pls, plman.GetPlaylistFocusItemIndex(act_pls), true);
					};
					break;
				};
			} else {
				switch (mask) {
				case KMask.shift:
					switch (vkey) {
					case VK_SHIFT: // SHIFT key alone
						p.list.SHIFT_count = 0;
						break;
					case VK_UP: // SHIFT + KEY UP
						if (p.list.SHIFT_count == 0) {
							if (p.list.SHIFT_start_id == null) {
								p.list.SHIFT_start_id = p.list.focusedTrackId;
							};
							plman.ClearPlaylistSelection(act_pls);
							plman.SetPlaylistSelectionSingle(act_pls, p.list.focusedTrackId, true);
							if (p.list.focusedTrackId > 0) {
								p.list.SHIFT_count--;
								p.list.focusedTrackId--;
								plman.SetPlaylistSelectionSingle(act_pls, p.list.focusedTrackId, true);
								plman.SetPlaylistFocusItem(act_pls, p.list.focusedTrackId);
							};
						} else if (p.list.SHIFT_count < 0) {
							if (p.list.focusedTrackId > 0) {
								p.list.SHIFT_count--;
								p.list.focusedTrackId--;
								plman.SetPlaylistSelectionSingle(act_pls, p.list.focusedTrackId, true);
								plman.SetPlaylistFocusItem(act_pls, p.list.focusedTrackId);
							};
						} else {
							plman.SetPlaylistSelectionSingle(act_pls, p.list.focusedTrackId, false);
							p.list.SHIFT_count--;
							p.list.focusedTrackId--;
							plman.SetPlaylistFocusItem(act_pls, p.list.focusedTrackId);
						};
						break;
					case VK_DOWN: // SHIFT + KEY DOWN
						if (p.list.SHIFT_count == 0) {
							if (p.list.SHIFT_start_id == null) {
								p.list.SHIFT_start_id = p.list.focusedTrackId;
							};
							plman.ClearPlaylistSelection(act_pls);
							plman.SetPlaylistSelectionSingle(act_pls, p.list.focusedTrackId, true);
							if (p.list.focusedTrackId < p.list.count - 1) {
								p.list.SHIFT_count++;
								p.list.focusedTrackId++;
								plman.SetPlaylistSelectionSingle(act_pls, p.list.focusedTrackId, true);
								plman.SetPlaylistFocusItem(act_pls, p.list.focusedTrackId);
							};
						} else if (p.list.SHIFT_count > 0) {
							if (p.list.focusedTrackId < p.list.count - 1) {
								p.list.SHIFT_count++;
								p.list.focusedTrackId++;
								plman.SetPlaylistSelectionSingle(act_pls, p.list.focusedTrackId, true);
								plman.SetPlaylistFocusItem(act_pls, p.list.focusedTrackId);
							};
						} else {
							plman.SetPlaylistSelectionSingle(act_pls, p.list.focusedTrackId, false);
							p.list.SHIFT_count++;
							p.list.focusedTrackId++;
							plman.SetPlaylistFocusItem(act_pls, p.list.focusedTrackId);
						};
						break;
					};
					break;
				case KMask.ctrl:
					if (vkey == 65) { // CTRL+A
						fb.RunMainMenuCommand("Edit/Select all");
						p.list.metadblist_selection = plman.GetPlaylistSelectedItems(p.list.playlist);
						full_repaint();
					};
					if (vkey == 88) { // CTRL+X
						if (!plman.IsAutoPlaylist(act_pls)) {
							plman.UndoBackup(act_pls);
							clipboard.selection = plman.GetPlaylistSelectedItems(plman.ActivePlaylist);

							if (isQueuePlaylistActive()) {
								var affected_items = Array();
								var first_focus_id = null;
								var next_focus_id = null;
								for (var k = 0; k < p.list.count; k++) {
									if (plman.IsPlaylistItemSelected(act_pls, k)) {
										affected_items.push(k);
										if (first_focus_id == null)
											fist_focus_id = k;
										next_focus_id = k + 1;
									};
								};
								if (next_focus_id >= p.list.count) {
									next_focus_id = first_focus_id;
								};
								if (next_focus_id != null) {
									plman.SetPlaylistFocusItem(act_pls, next_focus_id);
									plman.SetPlaylistSelectionSingle(act_pls, next_focus_id, true);
								};
								plman.RemoveItemsFromPlaybackQueue(affected_items);
							} else {
								plman.RemovePlaylistSelection(act_pls, false);
							};

							plman.RemovePlaylistSelection(act_pls, false);
							plman.SetPlaylistSelectionSingle(act_pls, plman.GetPlaylistFocusItemIndex(act_pls), true);
						};
					};
					if (vkey == 67) { // CTRL+C
						clipboard.selection = plman.GetPlaylistSelectedItems(plman.ActivePlaylist);
					};
					if (vkey == 86) { // CTRL+V
						// insert the clipboard selection (handles) after the current position in the active playlist
						if (clipboard.selection) {
							if (clipboard.selection.Count > 0) {
								try {
									plman.UndoBackup(plman.ActivePlaylist);
									if (p.list.count > 0) {
										plman.InsertPlaylistItems(plman.ActivePlaylist, p.list.focusedTrackId + 1, clipboard.selection);
									} else {
										plman.InsertPlaylistItems(plman.ActivePlaylist, 0, clipboard.selection);
									};
								} catch (e) {
									fb.trace("WSH Playlist WARNING: Clipboard can't be pasted, invalid clipboard content.");
								};
							};
						};
					};
					if (vkey == 73) { // CTRL+I
						cTopBar.visible = !cTopBar.visible;
						window.SetProperty("SYSTEM.TopBar.Visible", cTopBar.visible);
						resize_panels();
						full_repaint();
					};
					if (vkey == 84) { // CTRL+T
						// Toggle Toolbar
						if (!p.timer_onKey) {
							cHeaderBar.locked = !cHeaderBar.locked;
							window.SetProperty("SYSTEM.HeaderBar.Locked", cHeaderBar.locked);
							if (!cHeaderBar.locked) {
								p.headerBar.visible = false;
							};
							resize_panels();
							full_repaint();
							p.timer_onKey = window.SetTimeout(function () {
									p.timer_onKey && window.ClearTimeout(p.timer_onKey);
									p.timer_onKey = false;
								}, 300);
						};
					};
					if (vkey == 48) { // CTRL + 0
						g_forced_percent = 0;
						window.SetProperty("SYSTEM.dpi (0 = Default)", g_forced_percent);
						g_dpi = (g_forced_percent == 0 ? g_dpi_percent : g_forced_percent);
						//
						adjustMetrics(0);
						//
						resize_panels();
						full_repaint();
					};
					if (vkey == 89) { // CTRL + Y
						fb.RunMainMenuCommand("Edit/Redo");
					};
					if (vkey == 90) { // CTRL + Z
						fb.RunMainMenuCommand("Edit/Undo");
					};
					break;
				};
			};
		};
	};
};

function on_char(code) {
	if (cSettings.visible) {
		var fin = p.settings.pages.length;
		var fin2;
		for (var i = 0; i < fin; i++) {
			fin2 = p.settings.pages[i].elements.length;
			for (var j = 0; j < fin2; j++) {
				p.settings.pages[i].elements[j].on_char(code);
			};
		};
	} else {
		if (p.playlistManager.inputboxID >= 0) {
			p.playlistManager.inputbox.on_char(code);
		} else {
			if (p.list.count > 0) {
				p.list.tt_x = ((p.list.w) / 2) - (((cList.search_string.length * zoom(13, g_dpi)) + (zoom(10, g_dpi) * 2)) / 2);
				p.list.tt_y = p.list.y + Math.floor((p.list.h / 2) - zoom(30, g_dpi));
				p.list.tt_w = ((cList.search_string.length * zoom(13, g_dpi)) + (zoom(10, g_dpi) * 2));
				p.list.tt_h = zoom(60, g_dpi);
				if (code == 32 && cList.search_string.length == 0)
					return true; // SPACE Char not allowed on 1st char
				if (cList.search_string.length <= 20 && p.list.tt_w <= p.list.w - 20) {
					if (code > 31) {
						cList.search_string = cList.search_string + String.fromCharCode(code).toUpperCase();
						full_repaint();
						cList.clear_incsearch_timer && window.ClearTimeout(cList.clear_incsearch_timer);
						cList.clear_incsearch_timer = false;
						cList.incsearch_timer && window.ClearTimeout(cList.incsearch_timer);
						cList.incsearch_timer = window.SetTimeout(function () {
								p.list.incrementalSearch();
								window.ClearTimeout(cList.incsearch_timer);
								cList.incsearch_timer = false;
							}, 400);
					};
				};
			};
		};
	};
};

//=================================================// Playback Callbacks

function on_playback_starting(cmd, is_paused) {
	// called only on user action (cmd)
};

function on_playback_new_track(metadb) {
	// update historic playlist
	if (cPlaylistManager.enableHistoricPlaylist) {
		addToHistoricPlaylist(metadb);
	};

	// update statistics (if changing track without stop action <=> continous play)
	update_statistics();

	// update g_metadb and g_track_type because of on_playback_time uses
	//on_item_focus_change();
	g_metadb = metadb;
	if (g_metadb) {
		g_path = tf_path.EvalWithMetadb(g_metadb);
		g_track_type = TrackType(g_path);
	};

	if (properties.showwallpaper) {
		p.wallpaperImg = setWallpaperImg(properties.wallpaperpath, metadb);
	};

	/*
	if(properties.autocollapse) {
	if(plman.PlayingPlaylist == p.list.playlist) {
	//plman.SetPlaylistFocusItemByHandle(p.list.playlist, metadb);
	var nowplaying = plman.GetPlayingItemLocation();
	p.list.focusedTrackId = plman.GetPlaylistFocusItemIndex(p.list.playlist);
	if(nowplaying.PlaylistItemIndex == p.list.focusedTrackId) {
	var grpId = p.list.getGroupIdfromTrackId(p.list.focusedTrackId);
	if(grpId >= 0) {
	p.list.updateGroupStatus(grpId);
	var center_focus_item = p.list.isFocusedItemVisible();
	if(!center_focus_item) {
	p.list.setItems(!center_focus_item);
	p.scrollbar.setCursor(p.list.totalRowVisible, p.list.totalRows, p.list.offset);
	};
	};
	};
	};
	};
	 */

	full_repaint();
};

function on_playback_stop(reason) { // reason: (integer, begin with 0): user, eof, starting_another
	switch (reason) {
	case 0: // user stop
	case 1: // eof (e.g. end of playlist)
		// update wallpaper
		if (properties.showwallpaper) {
			p.wallpaperImg = null
		};
		// update statistics
		update_statistics();
		full_repaint();
		break;
	case 2: // starting_another (only called on user action, i.e. click on next button)
		break;
	};

};

function on_playback_pause(state) {
	if (p.list.nowplaying_y + cTrack.height > p.list.y && p.list.nowplaying_y < p.list.y + p.list.h) {
		window.RepaintRect(p.list.x, p.list.nowplaying_y, p.list.w, cTrack.height);
	};
};

function on_playback_seek(time) {};

function on_playback_time(time) {

	g_seconds = time;

	// -------------------------------------------------------------------------------/
	// WSH Statistics TAGs Engine (v0.6 by Br3tt)
	// Update file after 50% time played with TAG update on track's ending:
	// <FIRST_PLAYED>, <LAST_PLAYED>, <PLAY_COUNTER> (<PLAY_COUNT> replaced if found)
	// -------------------------------------------------------------------------------/
	var bool;
	var played_seconds = time;
	if (played_seconds <= 1)
		var total_seconds = tf_length_seconds.Eval();

	if (g_track_type < 2 && fb.IsMetadbInMediaLibrary(g_metadb)) {
		if (played_seconds <= 1) {
			wsh_time_elaps = Math.floor(played_seconds);
			if (total_seconds >= 10) {
				wsh_limit_stats = total_seconds - 5;
				wsh_delay_stats = Math.floor(total_seconds / 2);
			} else {
				wsh_limit_stats = total_seconds - 1;
				wsh_delay_stats = 2;
			};
			if (wsh_delay_stats < 0)
				wsh_delay_stats = 0;

		} else if (wsh_time_elaps > 0) {
			wsh_time_elaps++;
		};

		if (opt_stats && wsh_time_elaps >= wsh_delay_stats && played_seconds <= wsh_limit_stats) {
			wsh_time_elaps = 0;
			cStats.waiting_for_writing = true;
			cStats.handle = g_metadb;
			// report to console
			fb.trace("--- WSH Statistics ---");
			fb.trace("--- Queued for track: \"" + cStats.handle.Path + "\"");
		};
	};

	if (!cSettings.visible) {
		if (p.list.nowplaying_y + cTrack.height > p.list.y && p.list.nowplaying_y < p.list.y + p.list.h) {
			//window.RepaintRect(p.list.x, p.list.nowplaying_y, p.list.w, cTrack.height);
			full_repaint();
		};
	};
};

function on_playback_order_changed(new_order_index) {};

function on_focus(is_focused) {

	g_focus = is_focused;

	if (p.playlistManager.inputboxID >= 0) {
		p.playlistManager.inputbox.on_focus(is_focused);
	};
	if (!is_focused) {
		p.playlistManager.inputboxID = -1;
		full_repaint();
	} else {};
};

function on_notify_data(name, info) {
	switch (name) {
	case "xxx":

		break;
	};
};

//=================================================// Colour + Font + Images Callbacks
function on_font_changed() {
	get_font();
	full_repaint();
};

function on_colors_changed() {
	get_colors();
	get_images();
	p.topBar.setButtons();
	p.headerBar.setButtons();
	if (p.list) {
		if (p.list.totalRows > p.list.totalRowVisible) {
			p.scrollbar.setButtons();
			p.scrollbar.setCursorButton();
		};
		p.list.setItemColors();
	};
	p.playlistManager.setColors();
	p.playlistManager.setButtons();
	p.playlistManager.refresh("", false, false, false);
	if (cSettings.visible) {
		p.settings.refreshColors();
	};
	full_repaint();
};

function get_font() {
	var font_error = false;

	if (g_instancetype == 0) {
		g_font = window.GetFontCUI(FontTypeCUI.items);
		g_font_headers = window.GetFontCUI(FontTypeCUI.labels);
	} else if (g_instancetype == 1) {
		g_font = window.GetFontDUI(FontTypeDUI.playlists);
		g_font_headers = window.GetFontDUI(FontTypeDUI.tabs);
	};

	// tweak to fix a problem with WSH Panel Mod 1.5.6 and lower version on Font object Name property
	try {
		g_fname = g_font.Name;
		g_fsize = g_font.Size;
		g_fstyle = g_font.Style;
	} catch (e) {
		fb.trace("WSH report: Unable to use your default font. Using Segoe UI instead.");
		g_fname = "segoe ui";
		g_fsize = 12;
		g_fstyle = 0;
		font_error = true;
	};

	g_dpi_percent = Math.floor(g_fsize / 12 * 100);
	g_forced_percent = window.GetProperty("SYSTEM.dpi (0 = Default)", 0);
	g_dpi = (g_forced_percent == 0 ? g_dpi_percent : g_forced_percent);

	g_z2 = zoom(2, g_dpi);
	g_z3 = zoom(3, g_dpi);
	g_z4 = zoom(4, g_dpi);
	g_z5 = zoom(5, g_dpi);
	g_z6 = zoom(6, g_dpi);
	g_z8 = zoom(8, g_dpi);
	g_z10 = zoom(10, g_dpi);
	g_z16 = zoom(16, g_dpi);

	if (g_forced_percent) {
		g_fsize = Math.ceil(zoom(g_fsize, g_forced_percent));
		g_font = gdi.Font(g_fname, g_fsize, g_fstyle);
	} else if (font_error) {
		g_font = gdi.Font(g_fname, g_fsize, g_fstyle);
	};

	g_font_playicon = gdi.Font("wingdings 3", Math.floor(zoom(17, g_dpi)), 0);
	g_font_pauseicon = gdi.Font("wingdings", Math.floor(zoom(17, g_dpi)), 0);
	g_font_checkbox = gdi.Font("wingdings 2", Math.floor(zoom(18, g_dpi)), 0);
	g_font_queue_idx = gdi.Font("tahoma", Math.floor(zoom(11, g_dpi)), 1);

	if (g_font_guifx_found) {
		g_font_rating = gdi.Font("guifx v2 transports", Math.floor(zoom(17, g_dpi)), 0);
		g_font_mood = gdi.Font("guifx v2 transports", Math.floor(zoom(16, g_dpi)), 0);
	} else {
		g_font_rating = gdi.Font("wingdings 2", Math.floor(zoom(19, g_dpi)), 0);
		g_font_mood = gdi.Font("wingdings 2", Math.floor(zoom(24, g_dpi)), 1);
	};
	g_font_wd1 = gdi.Font("wingdings", Math.floor(zoom(19, g_dpi)), 0);
	g_font_wd2 = gdi.Font("wingdings 2", Math.floor(zoom(19, g_dpi)), 0);
	g_font_wd3 = gdi.Font("wingdings 3", Math.floor(zoom(19, g_dpi)), 0);
	g_font_wd3_headerBar = gdi.Font("wingdings 3", Math.floor(zoom(12, g_dpi)), 0);
	g_font_wd3_scrollBar = gdi.Font("wingdings 3", Math.floor(zoom(10, g_dpi)), 0);

	// group font
	g_font_group1 = gdi.Font(g_fname, g_fsize + 4, 0);
	g_font_group1_bold = gdi.Font(g_fname, g_fsize + 3, 1);
	g_font_group2 = gdi.Font(g_fname, g_fsize + 2, 0);

};

function get_colors() {
	var arr;
	// get some system colors
	g_syscolor_window_bg = utils.GetSysColor(COLOR_WINDOW);
	g_syscolor_highlight = utils.GetSysColor(COLOR_HIGHLIGHT);
	g_syscolor_button_bg = utils.GetSysColor(COLOR_BTNFACE);
	g_syscolor_button_txt = utils.GetSysColor(COLOR_BTNTEXT);

	arr = window.GetProperty("SYSTEM.COLOR TEXT NORMAL", "180-180-180").split("-");
	g_color_selected_txt = window.GetProperty("SYSTEM.COLOR TEXT SELECTED", "200-210-255");
	g_color_normal_bg = window.GetProperty("SYSTEM.COLOR BACKGROUND NORMAL", "25-25-35");
	g_color_selected_bg = window.GetProperty("SYSTEM.COLOR BACKGROUND SELECTED", "130-150-255");
	g_color_highlight = window.GetProperty("SYSTEM.COLOR HIGHLIGHT", "255-175-50");

	arr = window.GetProperty("SYSTEM.COLOR TEXT NORMAL", "180-180-180").split("-");
	g_color_normal_txt = RGB(arr[0], arr[1], arr[2]);
	arr = window.GetProperty("SYSTEM.COLOR TEXT SELECTED", "200-210-255").split("-");
	g_color_selected_txt = RGB(arr[0], arr[1], arr[2]);
	arr = window.GetProperty("SYSTEM.COLOR BACKGROUND NORMAL", "25-25-35").split("-");
	g_color_normal_bg = RGB(arr[0], arr[1], arr[2]);
	arr = window.GetProperty("SYSTEM.COLOR BACKGROUND SELECTED", "130-150-255").split("-");
	g_color_selected_bg = RGB(arr[0], arr[1], arr[2]);
	arr = window.GetProperty("SYSTEM.COLOR HIGHLIGHT", "255-175-50").split("-");
	g_color_highlight = RGB(arr[0], arr[1], arr[2]);

	// get custom colors from window Properties first
	if (!properties.enableCustomColors) {
		// get UI colors set in UI Preferences if no custom color set
		if (g_instancetype == 0) {
			g_color_normal_txt = window.GetColorCUI(ColorTypeCUI.text);
			g_color_selected_txt = window.GetColorCUI(ColorTypeCUI.selection_text);
			g_color_normal_bg = window.GetColorCUI(ColorTypeCUI.background);
			g_color_selected_bg = window.GetColorCUI(ColorTypeCUI.selection_background);
			g_color_highlight = window.GetColorCUI(ColorTypeCUI.active_item_frame);
		} else if (g_instancetype == 1) {
			g_color_normal_txt = window.GetColorDUI(ColorTypeDUI.text);
			g_color_selected_txt = window.GetColorDUI(ColorTypeDUI.selection);
			g_color_normal_bg = window.GetColorDUI(ColorTypeDUI.background);
			g_color_selected_bg = g_color_selected_txt;
			g_color_highlight = window.GetColorDUI(ColorTypeDUI.highlight);
		};
	};

	get_images();

	if (!g_first_launch) {
		if (p.playlistManager) {
			p.playlistManager.setColors();
		};
	};
};

function get_images() {
	var gb;
	var gui_font = gdi.Font("guifx v2 transports", 15, 0);

	images.glass_reflect = draw_glass_reflect(400, 400);

	images.sortdirection = gdi.CreateImage(7, 5);
	gb = images.sortdirection.GetGraphics();
	gb.FillSolidRect(1, 1, 5, 1, g_color_normal_txt);
	gb.FillSolidRect(2, 2, 3, 1, g_color_normal_txt);
	gb.FillSolidRect(3, 3, 1, 1, g_color_normal_txt);
	images.sortdirection.ReleaseGraphics(gb);

	images.nocover = gdi.Image(images.path + "nocover.png");
	images.noartist = gdi.Image(images.path + "noartist.png");
	images.stream = gdi.Image(images.path + "stream.png");
	images.loading = gdi.Image(images.path + "load.png");
	images.logo = gdi.Image(images.path + "logo.png");
	images.beam = draw_beam_image();
	images.noresult = gdi.Image(images.path + "noresult.png");
};

// ===================================================== // Wallpaper

function setWallpaperImg(path, metadb) {

	var fmt_path = fb.TitleFormat(path).Eval(true);
	var fmt_path_arr = utils.Glob(fmt_path).toArray();
	if (fmt_path_arr.length > 0) {
		var final_path = fmt_path_arr[0];
	} else {
		var final_path = null;
	};

	if (metadb && properties.wallpapermode > -1) {
		var tmp_img = utils.GetAlbumArtV2(metadb, properties.wallpapermode);
	} else {
		if (final_path) {
			tmp_img = gdi.Image(final_path);
		} else {
			tmp_img = null;
		};
	};
	if (!tmp_img) {
		if (final_path) {
			tmp_img = gdi.Image(final_path);
		} else {
			tmp_img = null;
		};
	};

	p.wallpaperImg = null;
	var img = FormatWallpaper(tmp_img, ww, wh, 2, 0, 0, "", true);
	return img;
};

function draw_beam_image() {
	var sbeam = gdi.CreateImage(500, 128);
	// Get graphics interface like "gr" in on_paint
	var gb = sbeam.GetGraphics();
	gb.FillEllipse(-250, 50, 1000, 640, g_color_highlight & 0x60ffffff);
	sbeam.ReleaseGraphics(gb);

	var beamA = sbeam.Resize(500 / 50, 128 / 50, 2);
	var beamB = beamA.Resize(500, 128, 2);
	return beamB;
};

function draw_blurred_image(image, ix, iy, iw, ih, bx, by, bw, bh, blur_value, overlay_color) {
	var blurValue = blur_value;
	var imgA = image.Resize(iw * blurValue / 100, ih * blurValue / 100, 2);
	var imgB = imgA.resize(iw, ih, 2);

	var bbox = gdi.CreateImage(bw, bh);
	// Get graphics interface like "gr" in on_paint
	var gb = bbox.GetGraphics();
	var offset = 90 - blurValue;
	gb.DrawImage(imgB, 0 - offset, 0 - (ih - bh) - offset, iw + offset * 2, ih + offset * 2, 0, 0, imgB.Width, imgB.Height, 0, 255);
	bbox.ReleaseGraphics(gb);

	var newImg = gdi.CreateImage(iw, ih);
	var gb = newImg.GetGraphics();

	if (ix != bx || iy != by || iw != bw || ih != bh) {
		gb.DrawImage(image, ix, iy, iw, ih, 0, 0, image.Width, image.Height, 0, 255);
		gb.FillSolidRect(bx, by, bw, bh, 0xffffffff);
	};
	gb.DrawImage(bbox, bx, by, bw, bh, 0, 0, bbox.Width, bbox.Height, 0, 255);

	// overlay
	if (overlay_color != null) {
		gb.FillSolidRect(bx, by, bw, bh, overlay_color);
	};

	// top border of blur area
	if (ix != bx || iy != by || iw != bw || ih != bh) {
		gb.FillSolidRect(bx, by, bw, 1, 0x22ffffff);
		gb.FillSolidRect(bx, by - 1, bw, 1, 0x22000000);
	};
	newImg.ReleaseGraphics(gb);

	return newImg;
};

function FormatWallpaper(image, iw, ih, interpolation_mode, display_mode, angle, txt, rawBitmap) {
	if (!image || !iw || !ih)
		return image;
	var i,
	j;

	var panel_ratio = iw / ih;
	wpp_img_info.ratio = image.Width / image.Height;
	wpp_img_info.orient = 0;

	if (wpp_img_info.ratio > panel_ratio) {
		wpp_img_info.orient = 1;
		// 1/3 : default image is in landscape mode
		switch (display_mode) {
		case 0: // Filling
			//wpp_img_info.w = iw * wpp_img_info.ratio / panel_ratio;
			wpp_img_info.w = ih * wpp_img_info.ratio;
			wpp_img_info.h = ih;
			wpp_img_info.cut = wpp_img_info.w - iw;
			wpp_img_info.x = 0 - (wpp_img_info.cut / 2);
			wpp_img_info.y = 0;
			break;
		case 1: // Adjust
			wpp_img_info.w = iw;
			wpp_img_info.h = ih / wpp_img_info.ratio * panel_ratio;
			wpp_img_info.cut = ih - wpp_img_info.h;
			wpp_img_info.x = 0;
			wpp_img_info.y = wpp_img_info.cut / 2;
			break;
		case 2: // Stretch
			wpp_img_info.w = iw;
			wpp_img_info.h = ih;
			wpp_img_info.cut = 0;
			wpp_img_info.x = 0;
			wpp_img_info.y = 0;
			break;
		};
	} else if (wpp_img_info.ratio < panel_ratio) {
		wpp_img_info.orient = 2;
		// 2/3 : default image is in portrait mode
		switch (display_mode) {
		case 0: // Filling
			wpp_img_info.w = iw;
			//wpp_img_info.h = ih / wpp_img_info.ratio * panel_ratio;
			wpp_img_info.h = iw / wpp_img_info.ratio;
			wpp_img_info.cut = wpp_img_info.h - ih;
			wpp_img_info.x = 0;
			wpp_img_info.y = 0 - (wpp_img_info.cut / 4);
			break;
		case 1: // Adjust
			wpp_img_info.h = ih;
			wpp_img_info.w = iw * wpp_img_info.ratio / panel_ratio;
			wpp_img_info.cut = iw - wpp_img_info.w;
			wpp_img_info.y = 0;
			wpp_img_info.x = wpp_img_info.cut / 2;
			break;
		case 2: // Stretch
			wpp_img_info.w = iw;
			wpp_img_info.h = ih;
			wpp_img_info.cut = 0;
			wpp_img_info.x = 0;
			wpp_img_info.y = 0;
			break;
		};
	} else {
		// 3/3 : default image is a square picture, ratio = 1
		wpp_img_info.w = iw;
		wpp_img_info.h = ih;
		wpp_img_info.cut = 0;
		wpp_img_info.x = 0;
		wpp_img_info.y = 0;
	};

	var tmp_img = gdi.CreateImage(iw, ih);
	var gp = tmp_img.GetGraphics();
	gp.SetInterpolationMode(interpolation_mode);
	gp.DrawImage(image, wpp_img_info.x, wpp_img_info.y, wpp_img_info.w, wpp_img_info.h, 0, 0, image.Width, image.Height, angle, 255);
	tmp_img.ReleaseGraphics(gp);

	// blur it!
	if (properties.wallpaperblurred) {
		var blur_factor = properties.wallpaperblurvalue; // [1-90]
		tmp_img = draw_blurred_image(tmp_img, 0, 0, tmp_img.Width, tmp_img.Height, 0, 0, tmp_img.Width, tmp_img.Height, blur_factor, 0x00ffffff);
	};

	CollectGarbage();
	if (rawBitmap) {
		return tmp_img.CreateRawBitmap();
	} else {
		return tmp_img;
	};
};

//=================================================// Queue Playlist features
function isQueuePlaylistActive() {
	var queue_pl_idx = isQueuePlaylistPresent();
	if (queue_pl_idx < 0) {
		return false;
	} else if (plman.ActivePlaylist == queue_pl_idx) {
		return true;
	} else {
		return false;
	};
};

function isQueuePlaylistPresent() {
	for (var i = 0; i < plman.PlaylistCount; i++) {
		if (plman.GetPlaylistName(i) == "Queue Content")
			return i;
	};
	return -1;
};

function isTrackQueued(handle) {
	var queue_total = plman.GetPlaybackQueueCount();
	if (queue_total > 0) {
		var vbarr = plman.GetPlaybackQueueContents();
		var arr = vbarr.toArray();
		for (var j = 0; j < queue_total; j++) {
			if (handle.Compare(arr[j].Handle)) {
				return j + 1;
			}
		};
		return -1;
	} else {
		return -1;
	};
};

function SetPlaylistQueue() {
	var total_pl = plman.PlaylistCount;
	var queue_pl_idx = isQueuePlaylistPresent();
	if (queue_pl_idx < 0) {
		return true;
	} else {
		var total_in_pls = plman.PlaylistItemCount(queue_pl_idx);
		if (total_in_pls > 0) {
			var affected_items = Array();
			for (var i = 0; i < total_in_pls; i++) {
				affected_items.push(i);
			};
			plman.SetPlaylistSelection(queue_pl_idx, affected_items, true);
			plman.RemovePlaylistSelection(queue_pl_idx);
		};
	};
	var queue_total = plman.GetPlaybackQueueCount();
	var vbarr = plman.GetPlaybackQueueContents();
	var arr = vbarr.toArray();
	var q_handlelist = plman.GetPlaylistSelectedItems(-1);
	for (var j = 0; j < queue_total; j++) {
		q_handlelist.Add(arr[j].Handle);
	};
	plman.InsertPlaylistItems(queue_pl_idx, j, q_handlelist, false);
};

function ShowPlaylistQueue(focus_id) {
	var total_pl = plman.PlaylistCount;
	var queue_pl_idx = isQueuePlaylistPresent();
	if (queue_pl_idx < 0) {
		plman.CreatePlaylist(total_pl, "Queue Content");
		queue_pl_idx = total_pl;
		plman.ActivePlaylist = queue_pl_idx;
	} else {
		plman.ActivePlaylist = queue_pl_idx;
		fb.ClearPlaylist();
	};
	var queue_total = plman.GetPlaybackQueueCount();
	var vbarr = plman.GetPlaybackQueueContents();
	var arr = vbarr.toArray();
	var q_handlelist = plman.GetPlaylistSelectedItems(-1);
	for (var i = 0; i < queue_total; i++) {
		q_handlelist.Add(arr[i].Handle);
	};
	plman.InsertPlaylistItems(queue_pl_idx, i, q_handlelist, false);
	plman.SetPlaylistFocusItem(queue_pl_idx, 0);
};

function ClearQueuePlaylist() {
	var current_pl = plman.ActivePlaylist;
	var total_pl = plman.PlaylistCount;
	var queue_pl_idx = isQueuePlaylistPresent();
	if (queue_pl_idx >= 0) {
		plman.ActivePlaylist = queue_pl_idx;
		plman.RemovePlaylist(queue_pl_idx);
		//fb.ClearPlaylist();
		plman.ActivePlaylist = current_pl < plman.PlaylistCount ? current_pl : current_pl - 1;
	};
};

function CheckPlaylistQueue() {
	var current = plman.ActivePlaylist;
	var total_pl = plman.PlaylistCount;
	var queue_pl_idx = isQueuePlaylistPresent();
	if (queue_pl_idx < 0) {
		plman.CreatePlaylist(total_pl, "Queue Content");
		queue_pl_idx = total_pl;
	} else {
		plman.RemovePlaylist(queue_pl_idx);
		plman.CreatePlaylist(queue_pl_idx, "Queue Content");
	};
	var queue_total = plman.GetPlaybackQueueCount();
	var vbarr = plman.GetPlaybackQueueContents();
	var arr = vbarr.toArray();
	var q_handlelist = plman.GetPlaylistSelectedItems(-1);
	for (var i = 0; i < queue_total; i++) {
		q_handlelist.Add(arr[i].Handle);
	};
	plman.InsertPlaylistItems(queue_pl_idx, i, q_handlelist, false);
	plman.SetPlaylistFocusItem(queue_pl_idx, 0);
};

function on_playback_queue_changed(origin) {
	g_queue_origin = origin;

	if (!cList.addToQueue_timer) {

		g_avoid_on_playlists_changed = true;
		g_avoid_on_playlist_items_added = true;
		g_avoid_on_playlist_items_removed = true;

		switch (g_queue_origin) {
		case 0: // changed_user_added
			// Prepare/Clear Queue playlist
			var current = plman.ActivePlaylist;
			var total_pl = plman.PlaylistCount;
			var queue_pl_idx = isQueuePlaylistPresent();
			if (queue_pl_idx < 0) {
				plman.CreatePlaylist(total_pl, "Queue Content");
				queue_pl_idx = total_pl;
			} else {
				if (current == queue_pl_idx) {
					fb.ClearPlaylist();
				} else {
					plman.RemovePlaylist(queue_pl_idx);
					plman.CreatePlaylist(queue_pl_idx, "Queue Content");
				};
			};
			// fill it
			var queue_total = plman.GetPlaybackQueueCount();
			var vbarr = plman.GetPlaybackQueueContents();
			var arr = vbarr.toArray();
			var q_handlelist = plman.GetPlaylistSelectedItems(-1);
			for (var i = 0; i < queue_total; i++) {
				q_handlelist.Add(arr[i].Handle);
			};
			plman.InsertPlaylistItems(queue_pl_idx, 0, q_handlelist, false);
			break;
		case 1: // changed_user_removed
			// clear Queue playlist
			var current = plman.ActivePlaylist;
			var total_pl = plman.PlaylistCount;
			var queue_pl_idx = isQueuePlaylistPresent();
			if (queue_pl_idx < 0) {
				return false;
			} else {
				if (current == queue_pl_idx) {
					fb.ClearPlaylist();
				} else {
					plman.RemovePlaylist(queue_pl_idx);
					plman.CreatePlaylist(queue_pl_idx, "Queue Content");
				};
			};
			// fill it
			var queue_total = plman.GetPlaybackQueueCount();
			if (queue_total > 0) {
				var vbarr = plman.GetPlaybackQueueContents();
				var arr = vbarr.toArray();
				var q_handlelist = plman.GetPlaylistSelectedItems(-1);
				for (var i = 0; i < queue_total; i++) {
					q_handlelist.Add(arr[i].Handle);
				};
				plman.InsertPlaylistItems(queue_pl_idx, 0, q_handlelist, false);
			} else { // remove queue playlist!
				plman.RemovePlaylist(queue_pl_idx);
			};
			break;
		case 2: // changed_playback_advance
			// clear Queue playlist
			var current = plman.ActivePlaylist;
			var total_pl = plman.PlaylistCount;
			var queue_pl_idx = isQueuePlaylistPresent();
			if (queue_pl_idx < 0) {
				return false;
			} else {
				var queue_total = plman.GetPlaybackQueueCount();
				if (queue_total > 0) {
					if (current == queue_pl_idx) {
						fb.ClearPlaylist();
					} else {
						plman.RemovePlaylist(queue_pl_idx);
						plman.CreatePlaylist(queue_pl_idx, "Queue Content");
					};
					// fill it
					var queue_total = plman.GetPlaybackQueueCount();
					var vbarr = plman.GetPlaybackQueueContents();
					var arr = vbarr.toArray();
					var q_handlelist = plman.GetPlaylistSelectedItems(-1);
					for (var i = 0; i < queue_total; i++) {
						q_handlelist.Add(arr[i].Handle);
					};
					plman.InsertPlaylistItems(queue_pl_idx, 0, q_handlelist, false);
				} else { // remove queue playlist!
					plman.RemovePlaylist(queue_pl_idx);
				};
			};
			break;
		};

		if (isQueuePlaylistActive()) {
			ShowPlaylistQueue(0);
			full_repaint();
		} else {
			SetPlaylistQueue();
			//CheckPlaylistQueue();
		};

		g_avoid_on_playlists_changed = false;
		g_avoid_on_playlist_items_added = false;
		g_avoid_on_playlist_items_removed = false;

		cList.addToQueue_timer = window.SetTimeout(function () {
				window.ClearTimeout(cList.addToQueue_timer);
				cList.addToQueue_timer = false;
			}, 250);

	};

};

//=================================================// Drag'n'Drop Callbacks
var g_dragndrop_hover_playlistManager = false;

function on_drag_enter() {
	g_dragndrop_status = true;
	g_dragndrop_drop_forbidden = false;
};

function on_drag_leave() {
	g_dragndrop_status = false;
	g_dragndrop_hover_playlistManager = false;
	g_dragndrop_trackId = -1;
	g_dragndrop_rowId = -1;
	g_dragndrop_targetPlaylistId = -1;
	p.list.buttonclicked = false;
	cScrollBar.timerID1 && window.ClearInterval(cScrollBar.timerID1);
	cScrollBar.timerID1 = false;
	if (g_dragndrop_drop_forbidden) {
		g_dragndrop_drop_forbidden = false;
		full_repaint();
	};
};

function on_drag_over(action, x, y, mask) {

	if (x == g_dragndrop_x && y == g_dragndrop_y)
		return true;

	if (g_dragndrop_hover_playlistManager) {
		g_dragndrop_hover_playlistManager = false;
		full_repaint();
	};

	if (plman.IsAutoPlaylist(plman.ActivePlaylist)) {
		g_dragndrop_drop_forbidden = true;
		full_repaint();
		if (p.playlistManager.woffset == 0 || (cPlaylistManager.visible && x < p.playlistManager.x - p.playlistManager.woffset)) {
			return true;
		};
	};

	g_dragndrop_trackId = -1;
	g_dragndrop_rowId = -1;
	g_dragndrop_targetPlaylistId = -1;
	g_dragndrop_bottom = false;
	if (p.playlistManager.woffset == 0 || (cPlaylistManager.visible && x < p.playlistManager.x - p.playlistManager.woffset)) {
		p.list.check("drag_over", x, y);
	} else if (cPlaylistManager.visible && p.playlistManager.isHoverObject(x, y)) {
		g_dragndrop_hover_playlistManager = true;
		p.playlistManager.check("drag_over", x, y);
	};

	if (p.playlistManager.woffset == 0 || (cPlaylistManager.visible && x < p.playlistManager.x - p.playlistManager.woffset)) {
		// scroll if required
		if (p.playlistManager.woffset == 0 || (cPlaylistManager.visible && x < p.playlistManager.x - p.playlistManager.woffset)) {
			if (p.list.offset > 0 && y < p.list.y + cTrack.height) {
				if (!p.list.buttonclicked) {
					p.list.buttonclicked = true;
					//
					var scroll_speed_ms = 5;
					//
					if (!cScrollBar.timerID1) {
						cScrollBar.timerID1 = window.SetInterval(function () {
								on_mouse_wheel(1);
								if (p.list.offset <= 0) {
									window.ClearInterval(cScrollBar.timerID1);
									cScrollBar.timerID1 = false;
									p.list.buttonclicked = false;
									if (!dragndrop.timerID) {
										dragndrop.timerID = window.SetTimeout(function () {
												if (p.playlistManager.woffset == 0 || (cPlaylistManager.visible && g_dragndrop_x < p.playlistManager.x - p.playlistManager.woffset)) {
													p.list.check("drag_over", g_dragndrop_x, g_dragndrop_y);
												} else if (cPlaylistManager.visible && p.playlistManager.isHoverObject(g_dragndrop_x, g_dragndrop_y)) {
													p.playlistManager.check("drag_over", g_dragndrop_x, g_dragndrop_y);
												};
												full_repaint();
												dragndrop.timerID && window.ClearTimeout(dragndrop.timerID);
												dragndrop.timerID = false;
											}, 75);
									};
								};
							}, scroll_speed_ms);
					};
				} else {
					full_repaint();
				};
			} else if (p.list.offset < p.list.totalRows - p.list.totalRowVisible && y > p.list.y + p.list.h - cTrack.height) {
				if (!p.list.buttonclicked) {
					p.list.buttonclicked = true;
					//
					var scroll_speed_ms = 5;
					//
					if (!cScrollBar.timerID1) {
						cScrollBar.timerID1 = window.SetInterval(function () {
								on_mouse_wheel(-1);
								if (p.list.offset >= p.list.totalRows - p.list.totalRowVisible) {
									window.ClearInterval(cScrollBar.timerID1);
									cScrollBar.timerID1 = false;
									p.list.buttonclicked = false;
									if (!dragndrop.timerID) {
										dragndrop.timerID = window.SetTimeout(function () {
												if (p.playlistManager.woffset == 0 || (cPlaylistManager.visible && g_dragndrop_x < p.playlistManager.x - p.playlistManager.woffset)) {
													p.list.check("drag_over", g_dragndrop_x, g_dragndrop_y);
												} else if (cPlaylistManager.visible && p.playlistManager.isHoverObject(g_dragndrop_x, g_dragndrop_y)) {
													//p.playlistManager.check("drag_over", g_dragndrop_x, g_dragndrop_y);
												};
												full_repaint();
												dragndrop.timerID && window.ClearTimeout(dragndrop.timerID);
												dragndrop.timerID = false;
											}, 75);
									};
								};
							}, scroll_speed_ms);
					};
				} else {
					full_repaint();
				};
			} else {
				cScrollBar.timerID1 && window.ClearInterval(cScrollBar.timerID1);
				cScrollBar.timerID1 = false;
				p.list.buttonclicked = false;
				if (!dragndrop.timerID) {
					dragndrop.timerID = window.SetTimeout(function () {
							full_repaint();
							dragndrop.timerID && window.ClearTimeout(dragndrop.timerID);
							dragndrop.timerID = false;
						}, 75);
				};
			};
		} else {
			cScrollBar.timerID1 && window.ClearInterval(cScrollBar.timerID1);
			cScrollBar.timerID1 = false;
		};

	} else if (cPlaylistManager.visible && p.playlistManager.isHoverObject(x, y)) {

		// vscroll playlist manager on dragging
		// ************************************
		var inner_padding = 0;
		var area_h = p.playlistManager.h - (cPlaylistManager.showStatusBar ? cPlaylistManager.statusBarHeight : 0);
		if (x > p.playlistManager.x - p.playlistManager.woffset && x < p.playlistManager.x - p.playlistManager.woffset + p.playlistManager.w) {
			if (p.playlistManager.offset > 0 && y < p.playlistManager.y + cPlaylistManager.rowHeight + inner_padding) {
				if (p.playlistManager.scrollbarWidth > 0 && !cPlaylistManager.vscroll_timer_loop) {
					cPlaylistManager.vscroll_timer_loop = window.SetInterval(function () {
							//
							var s = Math.abs(g_dragndrop_y - (p.playlistManager.y + cPlaylistManager.rowHeight));
							var h = Math.ceil(cPlaylistManager.rowHeight / 2);
							if (s > h)
								s = h;
							var t = h - s + 1;
							var r = Math.round(500 / h);
							var scroll_speed_ms = ((t * r) < 10 ? 10 : (t * r));
							//
							if (!cPlaylistManager.vscroll_timer) {
								cPlaylistManager.vscroll_timer = window.SetTimeout(function () {
										p.playlistManager.offset = p.playlistManager.offset > 0 ? p.playlistManager.offset - 1 : 0;
										p.playlistManager.scrollbar.reSet(p.playlistManager.rowTotal, cPlaylistManager.rowHeight, p.playlistManager.offset);
										full_repaint();
										if (p.playlistManager.offset == 0 || p.playlistManager.woffset < cPlaylistManager.width) { // kill interval timer!
											window.ClearTimeout(cPlaylistManager.vscroll_timer_loop);
											cPlaylistManager.vscroll_timer_loop = false;
										};
										window.ClearTimeout(cPlaylistManager.vscroll_timer);
										cPlaylistManager.vscroll_timer = false;
									}, scroll_speed_ms);
							};
						}, 20);
				};
			} else if (p.playlistManager.offset < p.playlistManager.rowTotal - p.playlistManager.totalRows && y > p.playlistManager.y + area_h - inner_padding) {
				if (p.playlistManager.scrollbarWidth > 0 && !cPlaylistManager.vscroll_timer_loop) {
					cPlaylistManager.vscroll_timer_loop = window.SetInterval(function () {
							//
							var s = Math.abs(g_dragndrop_y - (p.playlistManager.y + area_h));
							var h = Math.ceil(cPlaylistManager.rowHeight / 2);
							if (s > h)
								s = h;
							var t = h - s + 1;
							var r = Math.round(500 / h);
							var scroll_speed_ms = ((t * r) < 10 ? 10 : (t * r));
							//
							if (!cPlaylistManager.vscroll_timer) {
								cPlaylistManager.vscroll_timer = window.SetTimeout(function () {
										p.playlistManager.offset = p.playlistManager.offset < p.playlistManager.rowTotal - p.playlistManager.totalRows ? p.playlistManager.offset + 1 : p.playlistManager.rowTotal - p.playlistManager.totalRows;
										p.playlistManager.scrollbar.reSet(p.playlistManager.rowTotal, cPlaylistManager.rowHeight, p.playlistManager.offset);
										full_repaint();
										if (p.playlistManager.offset == p.playlistManager.rowTotal - p.playlistManager.totalRows || p.playlistManager.woffset < cPlaylistManager.width) { // kill interval timer!
											window.ClearTimeout(cPlaylistManager.vscroll_timer_loop);
											cPlaylistManager.vscroll_timer_loop = false;
										};
										window.ClearTimeout(cPlaylistManager.vscroll_timer);
										cPlaylistManager.vscroll_timer = false;
									}, scroll_speed_ms);
							};
						}, 20);
				};
			} else {
				if (cPlaylistManager.vscroll_timer) {
					window.ClearInterval(cPlaylistManager.vscroll_timer_loop);
					cPlaylistManager.vscroll_timer_loop = false;
				};
				if (!cPlaylistManager.drag_move_timer) {
					cPlaylistManager.drag_move_timer = window.SetTimeout(function () {
							if (p.playlistManager.hoverId != p.playlistManager.hoverId_previous) {
								full_repaint();
								p.playlistManager.hoverId_previous = p.playlistManager.hoverId;
							};
							window.ClearInterval(cPlaylistManager.drag_move_timer);
							cPlaylistManager.drag_move_timer = false;
						}, 50);
				};
			};
		} else {
			if (cPlaylistManager.vscroll_timer_loop) {
				window.ClearInterval(cPlaylistManager.vscroll_timer_loop);
				cPlaylistManager.vscroll_timer_loop = false;
			};
		};

	};

	full_repaint();

	g_dragndrop_x = x;
	g_dragndrop_y = y;
};

function on_drag_drop(action, x, y, mask) {

	if (p.playlistManager.woffset == 0 || (cPlaylistManager.visible && x < p.playlistManager.x - p.playlistManager.woffset)) {

		if (plman.IsAutoPlaylist(plman.ActivePlaylist)) {
			g_dragndrop_drop_forbidden = false;
			g_dragndrop_hover_playlistManager = false;
			full_repaint();
			return true;
		};

		g_dragndrop_total_before = p.list.count;
		p.list.buttonclicked = false;
		cScrollBar.timerID1 && window.ClearInterval(cScrollBar.timerID1);
		cScrollBar.timerID1 = false;
		g_dragndrop_status = false;

		// We are going to process the dropped items to a playlist
		var total_pl = plman.PlaylistCount;
		if (total_pl < 1) {
			plman.CreatePlaylist(0, "Dropped Items");
			plman.ActivePlaylist = 0;
			action.ToPlaylist();
			action.Playlist = plman.ActivePlaylist;
			action.ToSelect = true;
		} else {
			if (g_dragndrop_bottom) {
				plman.ClearPlaylistSelection(plman.ActivePlaylist);
				plman.UndoBackup(plman.ActivePlaylist);
				action.ToPlaylist();
				action.Playlist = plman.ActivePlaylist;
				action.ToSelect = true;
				g_dragndrop_timer && window.ClearTimeout(g_dragndrop_timer);
				g_dragndrop_timer = window.SetTimeout(function () {
						plman.SetPlaylistFocusItem(plman.ActivePlaylist, g_dragndrop_total_before);
						p.list.showFocusedItem();
						//full_repaint();
						g_dragndrop_trackId = -1;
						g_dragndrop_rowId = -1;
						window.ClearTimeout(g_dragndrop_timer);
						g_dragndrop_timer = false;
					}, 75);
			} else {
				g_avoid_on_playlist_items_added = true;
				g_avoid_on_playlist_items_reordered = true;

				plman.ClearPlaylistSelection(plman.ActivePlaylist);
				plman.UndoBackup(plman.ActivePlaylist);
				action.ToPlaylist();
				action.Playlist = plman.ActivePlaylist; ;
				action.ToSelect = true;

				g_dragndrop_timer && window.ClearTimeout(g_dragndrop_timer);
				g_dragndrop_timer = window.SetTimeout(function () {
						var delta = (g_dragndrop_total_before - g_dragndrop_trackId) * -1;
						plman.MovePlaylistSelection(plman.ActivePlaylist, delta);
						plman.SetPlaylistFocusItem(plman.ActivePlaylist, g_dragndrop_trackId);
						p.list.showFocusedItem();
						g_dragndrop_trackId = -1;
						g_dragndrop_rowId = -1;
						g_avoid_on_playlist_items_added = false;
						g_avoid_on_playlist_items_reordered = false;
						window.ClearTimeout(g_dragndrop_timer);
						g_dragndrop_timer = false;
					}, 75);
			};
		};

	} else if (cPlaylistManager.visible && p.playlistManager.isHoverObject(x, y)) {

		var drop_done = false;
		if (p.playlistManager.hoverId > -1 && p.playlistManager.hoverId < p.playlistManager.playlists.length && !p.playlistManager.playlists[p.playlistManager.hoverId].isAutoPlaylist && !p.playlistManager.playlists[p.playlistManager.hoverId].isReservedPlaylist) {
			drop_done = true;
			plman.UndoBackup(g_dragndrop_targetPlaylistId);
			action.ToPlaylist();
			action.Playlist = g_dragndrop_targetPlaylistId;
			action.ToSelect = true;
		} else if (p.playlistManager.ishoverHeader && g_dragndrop_targetPlaylistId < 0) {
			drop_done = true;
			var total_pl = plman.PlaylistCount;
			plman.CreatePlaylist(total_pl, "Dropped Items");
			action.ToPlaylist();
			action.Playlist = total_pl;
			action.ToSelect = true;
		};
		if (drop_done) {
			// create a timer to blink the playlist item where tracks have been droped!
			if (!cPlaylistManager.blink_timer) {
				cPlaylistManager.blink_x = x;
				cPlaylistManager.blink_y = y;
				cPlaylistManager.blink_totaltracks = 1;
				cPlaylistManager.blink_id = p.playlistManager.hoverId;
				cPlaylistManager.blink_counter = 0;
				cPlaylistManager.blink_timer = window.SetInterval(function () {
						cPlaylistManager.blink_counter++;
						if (cPlaylistManager.blink_counter > (cPlaylistManager.visible ? 5 : 10)) {
							window.ClearInterval(cPlaylistManager.blink_timer);
							cPlaylistManager.blink_timer = false;
							cPlaylistManager.blink_counter = -1;
							cPlaylistManager.blink_id = null;
						};
						full_repaint();
					}, 125);
			};
		};
	};
	g_dragndrop_drop_forbidden = false;
	g_dragndrop_hover_playlistManager = false;
	full_repaint();
};

function on_script_unload() {
	g_timer1 && window.ClearInterval(g_timer1);
	g_timer1 = false;
	g_timer2 && window.ClearInterval(g_timer2);
	g_timer2 = false;
	ClearQueuePlaylist();
	// update statisitics if required (closing foobar2000 on track's playing without stoping the track)
	update_statistics();
};
