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pyodide
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Use promise for initialization. Use postRun hook to resolve.

This commit is contained in:
Michael Droettboom 2018-04-17 10:43:26 -04:00
parent 93469d2996
commit 2a1a5b722e
1 changed files with 14 additions and 8 deletions
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22
src/pyodide.js
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@ -1,7 +1,6 @@
var languagePluginLoader = new Promise((resolve, reject) => {
{
let baseURL = "{{DEPLOY}}"; let baseURL = "{{DEPLOY}}";
let wasmURL = baseURL + 'pyodide.asm.wasm?x=' + Date.now(); let wasmURL = `${baseURL}pyodide.asm.wasm?x=${Date.now()}`;
let wasmXHR = new XMLHttpRequest(); let wasmXHR = new XMLHttpRequest();
wasmXHR.open('GET', wasmURL, true); wasmXHR.open('GET', wasmURL, true);
wasmXHR.responseType = 'arraybuffer'; wasmXHR.responseType = 'arraybuffer';
@ -11,14 +10,21 @@
if (wasmXHR.status === 200 || wasmXHR.status === 0) { if (wasmXHR.status === 200 || wasmXHR.status === 0) {
Module.wasmBinary = wasmXHR.response; Module.wasmBinary = wasmXHR.response;
} else { } else {
alert("Couldn't download the pyodide.asm.wasm binary. Response was " + wasmXHR.status); alert(`Couldn't download the pyodide.asm.wasm binary. Response was ${wasmXHR.status}`);
reject();
} }
Module.baseURL = baseURL; Module.baseURL = baseURL;
var script = document.createElement('script'); Module.postRun = () => {
script.onload = function() { window.pyodide = pyodide(Module); }; resolve();
script.src = baseURL + "pyodide.asm.js"; }
let script = document.createElement('script');
script.src = `${baseURL}pyodide.asm.js`;
script.onload = () => {
window.pyodide = pyodide(Module);
};
document.body.appendChild(script); document.body.appendChild(script);
}; };
wasmXHR.send(null); wasmXHR.send(null);
} });
languagePluginLoader