add media player

This commit is contained in:
ed 2019-06-10 02:29:07 +00:00
parent f172c149a1
commit df2c158142
3 changed files with 597 additions and 1 deletions

View file

@ -287,7 +287,11 @@ class HttpCli(object):
if not buf:
break
self.s.send(buf)
try:
self.s.send(buf)
except ConnectionResetError:
return False
# TODO propagate (self.ok or return)
def tx_mounts(self):
html = self.conn.tpl_mounts.render(this=self)

View file

@ -42,6 +42,7 @@
<canvas id="barbuf"></canvas>
</div>
</div>
<script src="/.cpr/browser.js"></script>
</body>
</html>

591
copyparty/web/browser.js Normal file
View file

@ -0,0 +1,591 @@
// error handler for mobile devices
function hcroak(msg) {
document.body.innerHTML = msg;
window.onerror = undefined;
throw 'fatal_err';
}
function croak(msg) {
document.body.textContent = msg;
window.onerror = undefined;
throw msg;
}
function esc(txt) {
return txt.replace(/[&"<>]/g, function (c) {
return {
'&': '&amp;',
'"': '&quot;',
'<': '&lt;',
'>': '&gt;'
}[c];
});
}
window.onerror = function (msg, url, lineNo, columnNo, error) {
window.onerror = undefined;
var html = ['<h1>you hit a bug!</h1><p>please screenshot this error and send me a copy arigathanks gozaimuch (ed/irc.rizon.net or ed#2644)</p><p>',
esc(String(msg)), '</p><p>', esc(url + ' @' + lineNo + ':' + columnNo), '</p>'];
if (error) {
var find = ['desc', 'stack', 'trace'];
for (var a = 0; a < find.length; a++)
if (String(error[find[a]]) !== 'undefined')
html.push('<h2>' + find[a] + '</h2>' +
esc(String(error[find[a]])).replace(/\n/g, '<br />\n'));
}
document.body.style.fontSize = '0.8em';
hcroak(html.join('\n'));
};
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
if (!String.prototype.endsWith) {
String.prototype.endsWith = function (search, this_len) {
if (this_len === undefined || this_len > this.length) {
this_len = this.length;
}
return this.substring(this_len - search.length, this_len) === search;
};
}
// https://stackoverflow.com/a/950146
function import_js(url, cb) {
var head = document.head || document.getElementsByTagName('head')[0];
var script = document.createElement('script');
script.type = 'text/javascript';
script.src = url;
script.onreadystatechange = cb;
script.onload = cb;
head.appendChild(script);
}
function ebi(id) {
return document.getElementById(id);
}
// extract songs + add play column
var mp = (function () {
var tracks = [];
var ret = {
'au': null,
'au_native': null,
'au_ogvjs': null,
'tracks': tracks,
'cover_url': ''
};
var re_audio = new RegExp(/\.(opus|ogg|m4a|aac|mp3|wav|flac)$/, 'i');
var re_cover = new RegExp(/^(cover|folder|cd|front|back)\.(jpe?g|png|gif)$/, 'i');
var trs = document.getElementById('files').getElementsByTagName('tbody')[0].getElementsByTagName('tr');
for (var a = 0, aa = trs.length; a < aa; a++) {
var tds = trs[a].getElementsByTagName('td');
var link = tds[1].getElementsByTagName('a')[0];
var url = link.getAttribute('href');
var m = re_audio.exec(url);
if (m) {
var ntrack = tracks.length;
tracks.push(url);
tds[0].innerHTML = '<a id="trk' + ntrack + '" href="#trk' + ntrack + '" class="play">play</a></td>';
}
}
for (var a = 0, aa = tracks.length; a < aa; a++)
ebi('trk' + a).onclick = ev_play;
ret.vol = localStorage.getItem('vol');
if (ret.vol !== null)
ret.vol = parseFloat(ret.vol);
else
ret.vol = 0.5;
ret.expvol = function () {
return 0.5 * ret.vol + 0.5 * ret.vol * ret.vol;
};
ret.setvol = function (vol) {
ret.vol = Math.max(Math.min(vol, 1), 0);
localStorage.setItem('vol', vol);
if (ret.au)
ret.au.volume = ret.expvol();
};
return ret;
})();
// toggle player widget
var widget = (function () {
var ret = {};
var widget = document.getElementById('widget');
var wtoggle = document.getElementById('wtoggle');
var touchmode = false;
var side_open = false;
var was_paused = true;
ret.open = function () {
if (side_open)
return false;
widget.className = 'open';
side_open = true;
return true;
};
ret.close = function () {
if (!side_open)
return false;
widget.className = '';
side_open = false;
return true;
};
ret.toggle = function (e) {
ret.open() || ret.close();
e.preventDefault();
return false;
};
ret.paused = function (paused) {
if (was_paused != paused) {
was_paused = paused;
ebi('bplay').innerHTML = paused ? '▶' : '⏸';
}
};
var click_handler = function (e) {
if (!touchmode)
ret.toggle(e);
return false;
};
if (window.Touch) {
var touch_handler = function (e) {
touchmode = true;
return ret.toggle(e);
};
wtoggle.addEventListener('touchstart', touch_handler, false);
}
wtoggle.onclick = click_handler;
return ret;
})();
// buffer/position bar
var pbar = (function () {
var r = {};
r.bcan = ebi('barbuf');
r.pcan = ebi('barpos');
r.bctx = r.bcan.getContext('2d');
r.pctx = r.pcan.getContext('2d');
var bctx = r.bctx;
var pctx = r.pctx;
var scale = (window.devicePixelRatio || 1) / (
bctx.webkitBackingStorePixelRatio ||
bctx.mozBackingStorePixelRatio ||
bctx.msBackingStorePixelRatio ||
bctx.oBackingStorePixelRatio ||
bctx.BackingStorePixelRatio || 1);
var gradh = 0;
var grad = null;
r.drawbuf = function () {
var cs = getComputedStyle(r.bcan);
var sw = parseInt(cs['width']);
var sh = parseInt(cs['height']);
var sm = sw * 1.0 / mp.au.duration;
r.bcan.width = (sw * scale);
r.bcan.height = (sh * scale);
bctx.setTransform(scale, 0, 0, scale, 0, 0);
if (!grad || gradh != sh) {
grad = bctx.createLinearGradient(0, 0, 0, sh);
grad.addColorStop(0, 'hsl(85,35%,42%)');
grad.addColorStop(0.49, 'hsl(85,40%,49%)');
grad.addColorStop(0.50, 'hsl(85,37%,47%)');
grad.addColorStop(1, 'hsl(85,35%,42%)');
gradh = sh;
}
bctx.fillStyle = grad;
bctx.clearRect(0, 0, sw, sh);
for (var a = 0; a < mp.au.buffered.length; a++) {
var x1 = sm * mp.au.buffered.start(a);
var x2 = sm * mp.au.buffered.end(a);
bctx.fillRect(x1, 0, x2 - x1, sh);
}
};
r.drawpos = function () {
var cs = getComputedStyle(r.bcan);
var sw = parseInt(cs['width']);
var sh = parseInt(cs['height']);
var sm = sw * 1.0 / mp.au.duration;
r.pcan.width = (sw * scale);
r.pcan.height = (sh * scale);
pctx.setTransform(scale, 0, 0, scale, 0, 0);
pctx.clearRect(0, 0, sw, sh);
var w = 8;
var x = sm * mp.au.currentTime;
pctx.fillStyle = '#573'; pctx.fillRect((x - w / 2) - 1, 0, w + 2, sh);
pctx.fillStyle = '#dfc'; pctx.fillRect((x - w / 2), 0, 8, sh);
};
return r;
})();
// volume bar
var vbar = (function () {
var r = {};
r.can = ebi('pvol');
r.ctx = r.can.getContext('2d');
var bctx = r.ctx;
var scale = (window.devicePixelRatio || 1) / (
bctx.webkitBackingStorePixelRatio ||
bctx.mozBackingStorePixelRatio ||
bctx.msBackingStorePixelRatio ||
bctx.oBackingStorePixelRatio ||
bctx.BackingStorePixelRatio || 1);
var gradh = 0;
var grad1 = null;
var grad2 = null;
r.draw = function () {
var cs = getComputedStyle(r.can);
var sw = parseInt(cs['width']);
var sh = parseInt(cs['height']);
r.can.width = (sw * scale);
r.can.height = (sh * scale);
bctx.setTransform(scale, 0, 0, scale, 0, 0);
if (!grad1 || gradh != sh) {
gradh = sh;
grad1 = bctx.createLinearGradient(0, 0, 0, sh);
grad1.addColorStop(0, 'hsl(50,45%,42%)');
grad1.addColorStop(0.49, 'hsl(50,50%,49%)');
grad1.addColorStop(0.50, 'hsl(50,47%,47%)');
grad1.addColorStop(1, 'hsl(50,45%,42%)');
grad2 = bctx.createLinearGradient(0, 0, 0, sh);
grad2.addColorStop(0, 'hsl(205,10%,16%)');
grad2.addColorStop(0.49, 'hsl(205,15%,20%)');
grad2.addColorStop(0.50, 'hsl(205,13%,18%)');
grad2.addColorStop(1, 'hsl(205,10%,16%)');
}
bctx.fillStyle = grad2; bctx.fillRect(0, 0, sw, sh);
bctx.fillStyle = grad1; bctx.fillRect(0, 0, sw * mp.vol, sh);
};
var rect;
function mousedown(e) {
rect = r.can.getBoundingClientRect();
mousemove(e);
}
function mousemove(e) {
if (e.changedTouches && e.changedTouches.length > 0) {
e = e.changedTouches[0];
}
else if (e.buttons === 0) {
r.can.onmousemove = null;
return;
}
var x = e.clientX - rect.left;
var mul = x * 1.0 / rect.width;
if (mul > 0.98)
mul = 1;
mp.setvol(mul);
r.draw();
}
r.can.onmousedown = function (e) {
if (e.button !== 0)
return;
r.can.onmousemove = mousemove;
mousedown(e);
};
r.can.onmouseup = function (e) {
if (e.button === 0)
r.can.onmousemove = null;
};
if (window.Touch) {
r.can.ontouchstart = mousedown;
r.can.ontouchmove = mousemove;
}
r.draw();
return r;
})();
// hook up the widget buttons
(function () {
var bskip = function (n) {
var tid = null;
if (mp.au)
tid = mp.au.tid;
if (tid !== null)
play(tid + n);
else
play(0);
};
ebi('bplay').onclick = function (e) {
e.preventDefault();
if (mp.au) {
if (mp.au.paused)
mp.au.play();
else
mp.au.pause();
}
else
play(0);
};
ebi('bprev').onclick = function (e) {
e.preventDefault();
bskip(-1);
};
ebi('bnext').onclick = function (e) {
e.preventDefault();
bskip(1);
};
ebi('barpos').onclick = function (e) {
if (!mp.au)
return play(0);
var rect = pbar.pcan.getBoundingClientRect();
var x = e.clientX - rect.left;
var mul = x * 1.0 / rect.width;
mp.au.currentTime = mp.au.duration * mul;
if (mp.au === mp.au_native)
// hack: ogv.js breaks on .play() during playback
mp.au.play();
};
})();
// periodic tasks
(function () {
var nth = 0;
var last_skip_url = '';
var progress_updater = function () {
if (!mp.au) {
widget.paused(true);
}
else {
// indicate playback state in ui
widget.paused(mp.au.paused);
// draw current position in song
if (!mp.au.paused)
pbar.drawpos();
// occasionally draw buffered regions
if (++nth == 10) {
pbar.drawbuf();
nth = 0;
}
// switch to next track if approaching the end
if (last_skip_url != mp.au.src) {
var pos = mp.au.currentTime;
var len = mp.au.duration;
if (pos > 0 && pos > len - 0.1) {
last_skip_url = mp.au.src;
play(mp.au.tid + 1);
}
}
}
setTimeout(progress_updater, 100);
};
progress_updater();
})();
// event from play button next to a file in the list
function ev_play(e) {
e.preventDefault();
play(parseInt(this.getAttribute('id').substr(3)));
return false;
}
function setclass(id, clas) {
ebi(id).setAttribute('class', clas);
}
var iOS = !!navigator.platform &&
/iPad|iPhone|iPod/.test(navigator.platform);
// plays the tid'th audio file on the page
function play(tid, call_depth) {
if (mp.tracks.length == 0)
return alert('no audio found wait what');
while (tid >= mp.tracks.length)
tid -= mp.tracks.length;
while (tid < 0)
tid += mp.tracks.length;
if (mp.au) {
mp.au.pause();
setclass('trk' + mp.au.tid, 'play');
}
// ogv.js breaks on .play() unless directly user-triggered
var hack_attempt_play = true;
var url = mp.tracks[tid];
if (iOS && /\.(ogg|opus)$/i.test(url)) {
if (mp.au_ogvjs) {
mp.au = mp.au_ogvjs;
}
else if (window['OGVPlayer']) {
mp.au = mp.au_ogvjs = new OGVPlayer();
hack_attempt_play = false;
mp.au.addEventListener('error', evau_error, true);
mp.au.addEventListener('progress', pbar.drawpos, false);
widget.open();
}
else {
if (call_depth !== undefined)
return alert('failed to load ogv.js');
show_modal('<h1>loading ogv.js</h1><h2>thanks apple</h2>');
import_js('/.nfi-audio/ogvjs-1.5.8/ogv.js', function () {
play(tid, 1);
});
return;
}
}
else {
if (!mp.au_native) {
mp.au = mp.au_native = new Audio();
mp.au.addEventListener('error', evau_error, true);
mp.au.addEventListener('progress', pbar.drawpos, false);
widget.open();
}
mp.au = mp.au_native;
}
mp.au.tid = tid;
mp.au.src = url;
mp.au.volume = mp.expvol();
setclass('trk' + tid, 'play act');
try {
if (hack_attempt_play)
mp.au.play();
if (mp.au.paused)
autoplay_blocked();
location.hash = 'trk' + tid;
pbar.drawbuf();
return true;
}
catch (ex) {
alert('playback failed: ' + ex);
}
setclass('trk' + mp.au.tid, 'play');
setTimeout('play(' + (mp.au.tid + 1) + ');', 500);
}
// event from the audio object if something breaks
function evau_error(e) {
var err = '';
var eplaya = (e && e.target) || (window.event && window.event.srcElement);
var url = eplaya.src;
switch (eplaya.error.code) {
case eplaya.error.MEDIA_ERR_ABORTED:
err = "You aborted the playback attempt (how tho)";
break;
case eplaya.error.MEDIA_ERR_NETWORK:
err = "Your internet connection is wonky";
break;
case eplaya.error.MEDIA_ERR_DECODE:
err = "This file is supposedly corrupted??";
break;
case eplaya.error.MEDIA_ERR_SRC_NOT_SUPPORTED:
err = "Your browser does not understand this audio format";
break;
default:
err = 'Unknown Errol';
break;
}
if (eplaya.error.message)
err += '\n\n' + eplaya.error.message;
err += '\n\nFile: «' + decodeURIComponent(eplaya.src.split('/').slice(-1)[0]) + '»';
alert(err);
play(eplaya.tid + 1);
}
// show a fullscreen message
function show_modal(html) {
var body = document.body || document.getElementsByTagName('body')[0];
var div = document.createElement('div');
div.setAttribute('id', 'blocked');
div.innerHTML = html;
unblocked();
body.appendChild(div);
}
// hide fullscreen message
function unblocked() {
var dom = ebi('blocked');
if (dom)
dom.remove();
}
// show ui to manually start playback of a linked song
function autoplay_blocked(tid) {
show_modal(`
<div id="blk_play">
<a id="blk_go"></a>
</div>
<div id="blk_abrt">
<a id="blk_na">Cancel<br /><br />(show file list)</a>
</div>`);
var go = ebi('blk_go');
var na = ebi('blk_na');
go.textContent = 'Play "' + mp.tracks[mp.au.tid].split(/\//).pop() + '"';
go.onclick = function () {
unblocked();
mp.au.play();
};
na.onclick = unblocked;
}
// autoplay linked track
(function () {
var v = location.hash;
if (v && v.length > 4 && v.indexOf('#trk') === 0)
play(parseInt(v.substr(4)));
})();
//widget.open();