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ampache/lib/javascript/html5_player.js
2013-09-20 11:53:27 -04:00

246 lines
8 KiB
JavaScript

/* vim:set tabstop=4 softtabstop=4 shiftwidth=4 expandtab: */
/**
*
* LICENSE: GNU General Public License, version 2 (GPLv2)
* Copyright 2013 Ampache.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License v2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
var current_playlist_item = null;
function play_item(event)
{
stop();
current_playlist_item = event.findElement().getStorage().get('playlist_item');
play();
}
function adjust_buttons()
{
if(!current_playlist_item.player.paused)
{
$('play').addClassName('inactive');
$('pause').removeClassName('inactive');
$('stop').removeClassName('inactive');
}
else
{
$('play').removeClassName('inactive');
$('pause').addClassName('inactive');
$('stop').addClassName('inactive');
}
}
function stop(event)
{
if(current_playlist_item)
{
current_playlist_item.player.pause();
current_playlist_item.player.currentTime = 0;
if(current_playlist_item.player.currentTime)
{
var src=current_playlist_item.player.src;
current_playlist_item.player.src=null;
current_playlist_item.player.src=src;
}
current_playlist_item.element.removeClassName('playing');
adjust_buttons();
}
}
function pause(event)
{
if(current_playlist_item)
{
current_playlist_item.player.pause();
adjust_buttons();
}
}
function play(event)
{
if(current_playlist_item)
{
$('title').update(current_playlist_item.info_url);
$('title').select('a')[0].writeAttribute('target', '_new');
$('album').update(current_playlist_item.f_album_link);
//$('album').select('a')[0].writeAttribute('target', '_new');
$('artist').update(current_playlist_item.author);
//$('artist').select('a')[0].writeAttribute('target', '_new');
$('albumart').update(new Element('img', {src: current_playlist_item.albumart_url + '&thumb=4'}));
dequeue(current_playlist_item.element);
current_playlist_item.player.writeAttribute('preload', 'auto');
current_playlist_item.player.play();
if(current_playlist_item.element.offsetTop - $('playlist').offsetTop - $('playlist').scrollTop > $('playlist').measure('height') || current_playlist_item.element.offsetTop - $('playlist').offsetTop - $('playlist').scrollTop < 0)
{
$('playlist').scrollTop = current_playlist_item.element.offsetTop - $('playlist').offsetTop;
}
current_playlist_item.element.addClassName('playing');
adjust_buttons();
}
}
function next(event)
{
if(current_playlist_item && current_playlist_item.next)
{
stop();
var next = current_playlist_item.next;
$$('[data-queue-id=1]').each(function(e) { next=e.getStorage().get('playlist_item') });
current_playlist_item = next;
play();
}
}
function previous(event)
{
if(current_playlist_item && current_playlist_item.previous)
{
stop();
current_playlist_item = current_playlist_item.previous;
play();
}
}
function seconds_to_string(seconds)
{
return Math.floor(seconds / 60) + ":" + (Math.floor(seconds % 60) < 10 ? '0' : '') + Math.floor(seconds % 60);
}
function timeupdate(event)
{
if(current_playlist_item)
{
$('progress_text').update(seconds_to_string(current_playlist_item.player.currentTime) + "/" + seconds_to_string(current_playlist_item.time));
if(current_playlist_item.player.currentTime > current_playlist_item.time / 2)
{
if(current_playlist_item.next)
{
current_playlist_item.next.player.writeAttribute('preload', 'auto');
}
}
//fix for chrome where ended is not thrown properly
if(current_playlist_item.player.currentTime >= current_playlist_item.time)
{
ended(event);
}
}
}
function ended(event)
{
next(event);
}
function search(event)
{
var search = new RegExp(".*" + event.findElement().value + ".*", "i");
for(var item = $('playlist').firstDescendant(); item; item = item.next())
{
if(!search.test(item.textContent != undefined ? item.textContent : item.innerText))
{
item.hide();
}
else
{
item.show();
}
}
}
function clear_search(event)
{
event.findElement().value = "";
search(event);
}
function queue(event)
{
var queue_id=0;
if(event.findElement().getAttribute('data-queue-id'))
{
return dequeue(event.findElement());
}
$$('[data-queue-id]').each(
function(e)
{
if(parseInt(e.getAttribute('data-queue-id')) > queue_id)
{
queue_id = parseInt(e.getAttribute('data-queue-id'));
}
});
event.findElement().setAttribute('data-queue-id', queue_id+1);
}
function dequeue(element)
{
var queue_id=0;
$$('[data-queue-id]').sort(
function(x, y)
{
return parseInt(x.getAttribute('data-queue-id'))-parseInt(y.getAttribute('data-queue-id'));
})
.each(
function(e)
{
if(queue_id)
{
e.setAttribute('data-queue-id', queue_id++);
}
if(e==element)
{
queue_id=parseInt(e.getAttribute('data-queue-id'));
e.removeAttribute('data-queue-id');
}
});
}
document.observe("dom:loaded", function()
{
var last_item = null, first_item = null;
for(id in playlist_items)
{
var li = new Element('li');
$('playlist').insert(li);
playlist_items[id].play_url += '&transcode_to=' + (Prototype.Browser.IE || Prototype.Browser.WebKit || Prototype.Browser.MobileSafari ? 'mp3' : 'ogg');
li.update(playlist_items[id].title);
playlist_items[id].player = new Element("audio", {preload: Prototype.Browser.IE ? 'auto' : 'none', src : playlist_items[id].play_url});
li.insert(playlist_items[id].player);
li.getStorage().set('playlist_item', playlist_items[id]);
li.observe('click', play_item);
li.observe('mousedown', function(event) {if(event.which==2 || event.which==3) queue(event)});
li.setAttribute('data-tooltip', playlist_items[id].album + ' - ' + playlist_items[id].author);
playlist_items[id].player.observe('ended', ended);
playlist_items[id].player.observe('timeupdate', timeupdate);
playlist_items[id].element = li;
if(last_item)
{
last_item.next = playlist_items[id];
}
if(first_item == null)
{
first_item = playlist_items[id];
}
playlist_items[id].previous = last_item;
last_item = playlist_items[id];
}
if(first_item)
{
// first_item.previous = last_item;
// last_item.next = first_item;
current_playlist_item = first_item;
play();
}
$('stop').observe('click', stop);
$('play').observe('click', play);
$('pause').observe('click', pause);
$('next').observe('click', next);
$('previous').observe('click', previous);
$('input_search').observe('keyup', search);
$('input_search').observe('html5_player:clear_search', clear_search);
$('input_search').observe('focus', clear_search);
$('clear_search').observe('click', function() {
$('input_search').fire('html5_player:clear_search')
});
});