sockscape/client/lib/check.js
2017-05-22 16:03:13 -05:00

40 lines
1.2 KiB
JavaScript

// feature checking trashcode (c) obrado 1989
window.onload = function() {
var support = {
anim: true,
canvas: true,
webgl: true,
idb: true
};
if(!document.getElementById("cs").getContext)
support.canvas = false;
// check for webgl support
var canvas = document.getElementById("cs");
if(!(canvas.getContext("webgl") || canvas.getContext("experimental-webgl")))
support.webgl = false;
// check for indexedDB support
window.indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
window.IDBTransaction = window.IDBTransaction || window.webkitIDBTransaction || window.msIDBransaction;
window.IDBKeyRange = window.IDBKeyRange || window.webkitIDBKeyRange || window.msIDBKeyRange;
if(!window.indexedDB)
support.idb = false;
var supported = true;
for(var i in support)
supported = supported && support[i];
if(!supported) {
var supportStr = "";
for(var i in support)
supportStr += ""+ (+support[i]);
window.location.href = "error.html?err="+ supportStr;
return;
}
Entrypoint.start();
}