Apple-2-SW
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vnIIc
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feature detection

This commit is contained in:
Joshua Bell 2019-06-25 13:14:40 -07:00
parent 987ea17971
commit 2425c89f7d
2 changed files with 26 additions and 1 deletions
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13
index.html
View File

@ -1,4 +1,5 @@
<!doctype html>
<meta charset=utf-8>
<title>vnIIc</title>
<link rel=icon href="res/icon128.png">
<link rel=stylesheet href="https://fonts.googleapis.com/css?family=Audiowide">
@ -20,6 +21,15 @@ body {
section { font-size: 80%; }
body:not(.supports-serial) #serial-support::before,
body:not(.supports-getDisplayMedia) #stream-support::before {
content: "👎 not supported"
}
body.supports-serial #serial-support::before,
body.supports-getDisplayMedia #stream-support::before {
content: "👍 supported!"
}
</style>
<div id=title>
@ -34,7 +44,8 @@ Desktop streaming to an Apple II with Super Serial Card
<section id=requirements>
<h2>Requirements</h2>
<ul>
<li>Modern browser with support for <a target=_blank href="https://w3c.github.io/mediacapture-screen-share/">Screen Capture</a> (<a target=_blank href="https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getDisplayMedia#Browser_compatibility">list</a>) and <a target=_blank href="https://wicg.github.io/serial/">Web Serial</a> (circa mid-2019, not yet available)
<li>Browser support for <a target=_blank href="https://w3c.github.io/mediacapture-screen-share/">Screen Capture</a>: <span id=stream-support></span>
<li>Browser support for <a target=_blank href="https://wicg.github.io/serial/">Web Serial</a>: <span id=serial-support></span>
<li>Apple II with Super Serial Card in slot 2. (e.g. Apple IIc, Apple IIgs, Laser 128)
<li>Serial connection between your modern computer and the Apple, such as via a <a target=_blank href="https://en.wikipedia.org/wiki/Null_modem">null-modem</a> cable and USB to RS-232 adapter from <a target=_blank href="http://retrofloppy.com/products/">RetroFloppy</a>.
</ul>

14
server.js
View File

@ -6,6 +6,20 @@
const $ = document.querySelector.bind(document);
if ('serial' in navigator) {
document.body.classList.add('supports-serial');
} else {
$('#bootstrap').disabled = true;
}
if ('mediaDevices' in navigator &&
'getDisplayMedia' in navigator.mediaDevices) {
document.body.classList.add('supports-getDisplayMedia');
} else {
$('#start').disabled = true;
$('#dither').disabled = true;
$('#save').disabled = true;
}
let dither_factor = 0.9;
$('#dither').addEventListener('input', e => {