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media.js
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media.js
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// Copyright (C) 2011-2019 Andrew "Jamoozy" C. Sabisch
//
// This file is part of GOPF.
//
// GOPF is free software: you can redistribute it and/or modify it under the
// terms of the GNU Affero General Public as published by the Free Software
// Foundation, either version 3 of the License, or (at your option) any later
// version.
//
// GOPF 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 Affero General Public License for more
// details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GOPF. If not, see http://www.gnu.org/licenses/.
var media = (function() {
// Adds a string to the notification thing---meant for notifications
// to the user. To print debug statements, use window.console.log().
function notify(str) {
$("#notification").html(str);
}
function inspect(obj) {
var out = '';
for (var p in obj) {
out += p + ': ' + obj[p] + '\n';
}
window.console.log(out);
}
function get_ith_media(i) {
var meds = $("#media").children();
return meds.length > i ? meds[i] : null;
}
function play(m) {
var playing = $(".playing");
if (playing.length > 0) {
playing.first().attr("class", "media");
}
var media = $(m),
path = media.attr("path"),
player = $("#player");
$("#page-title").html(media.html());
$("#title-header").html('<h1 class="header">Now Playing:</h1>\n' +
'<div class="title"><span id="url-link" class="url-link" href="#">☃</span> ' + media.html() + "</div>");
$("#url-link").click(function(e) {
window.console.log("toggling " + $("#url"));
$("#url").html(document.location.origin + document.location.pathname +
"?p=" + encodeURIComponent($(".selected").html()) +
"&m=" + encodeURIComponent($(".playing").html()) +
"&t=" + Math.round($("#player")[0].currentTime));
$("#url").toggle();
});
media.attr("class", "media playing");
player.prop("src", path);
if (!shouldShuffle()) {
var i = nextID();
if (i >= 0) {
var path = $($("#media").children()[i]).attr("path");
$("#preload").prop("href", path);
}
}
player[0].play();
}
function playRandomSong(meds) {
if (!meds || meds.length <= 0) {
return;
}
var j = media.i;
while ((j = Math.floor(Math.random() * meds.length)) == media.i);
media.i = j;
play(meds[media.i]);
}
function shouldLoop() {
return $("#loop").prop('checked');
}
function shouldShuffle() {
return $("#shuf").prop('checked');
}
function nextID() {
var meds = $("#media").children(),
i = media.i + 1;
if (meds.length > i) {
return i;
}
return shouldLoop() ? 0 : -1;
}
return {
i : 0, // index of playing media
init : function(e) {
var player = $("#player");
player.on("play", function(e) {
media.onplay(player);
});
player.on("ended", media.onended);
$("#prev").click(media.prev);
$("#next").click(media.next);
$("#loop_label").click(function(e) {
$("#loop").trigger("click");
});
$("#shuf_label").click(function(e) {
$("#shuf").trigger("click");
});
// On any kind of player error (during playback?), just go to the next
// song.
player.on("error", media.onerror);
// Check for a get request that requests we play something right away.
var playing = $('.playing');
if (playing.size() <= 0) {
return;
}
media.i = $(".media").index(playing) - 1;
play(playing[0]);
var match = /\Wt=(\d+)/.exec(document.location.href);
if (!match) {
return;
}
var quickplay = function() {
this.currentTime = parseInt(match[1]);
$(this).off('playing', null, quickplay);
this.play();
}
$("#player").on('playing', quickplay);
},
onclick : function(med) {
var meds = $("#media").children();
// Find media's place in the playlist
for (media.i = 0; media.i < meds.size(); media.i++) {
if (meds[media.i] === med) {
break;
}
}
// Set media to #selected?
$("#selected").removeAttr('id');
$(med).attr('id', 'selected');
play(med);
},
onended : function(e) {
window.console.log("Media ended. Calling next.");
media.next(e);
},
onerror : function(e) {
window.console.log("Warning! Got a playback error:");
window.console.log(e);
media.next(e);
},
load : function(med) {
$("#player").setAttribute("src", med.getAttribute("path"));
},
next : function(e) {
var meds = $("#media").children();
if (meds.length <= 0) {
return;
}
if (shouldShuffle()) {
playRandomSong(meds);
return;
}
var i = nextID();
if (i != -1) {
media.i = i
play(meds[i])
}
},
prev : function(e) {
var meds = $("#media").children();
if (shouldShuffle()) {
playRandomSong(meds);
return;
}
if (media.i > 0) {
media.i -= 1;
} else if (shouldLoop()) {
media.i = meds.length - 1; // loop 'round
}
play(meds[media.i]);
},
onplay : function(player) {
var selected = $(".playing");
if (selected.length === 0) {
play($("#media").children().first());
}
}
};
})();
$(window).load(media.init);