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languagePluginLoader.then(() => {
// pyodide is now ready to use...
pyodide.loadPackage('Pygments').then(() => {
pyodide.runPython('import pygments.lexers, pygments.formatters.html, pygments.styles');
let qvars = getQueryVariables();
var lexerlist = pyodide.runPython('list(pygments.lexers.get_all_lexers())');
var sel = document.getElementById("lang");
for (lex of lexerlist) {
if (lex[1][0] === undefined) {
continue;
}
var opt = document.createElement("option");
opt.text = lex[0];
opt.value = lex[1][0];
sel.add(opt);
if (lex[1].indexOf(qvars['lexer']) >= 0) {
opt.selected = true;
}
}
var stylelist = pyodide.runPython('list(pygments.styles.get_all_styles())');
var sel = document.getElementById("style");
for (sty of stylelist) {
if (sty != "default") {
var opt = document.createElement("option");
opt.text = sty;
opt.value = sty;
sel.add(opt);
}
}
document.getElementById("hlbtn").disabled = false;
document.getElementById("loading").style.display = "none";
if (qvars['code'] !== undefined) {
document.getElementById("code").value = qvars['code'];
highlight();
}
});
});
function getQueryVariables() {
var query = window.location.search.substring(1);
var vars = query.split('&');
var var_obj = {};
for (var i = 0; i < vars.length; i++) {
var pair = vars[i].split('=');
var_obj[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
}
return var_obj;
}
function new_file() {
pyodide.globals['fname'] = document.getElementById("file").files[0].name;
var alias = pyodide.runPython('pygments.lexers.find_lexer_class_for_filename(fname).aliases[0]');
var sel = document.getElementById("lang");
for (var i = 0; i < sel.length; i++) {
if (sel.options[i].value == alias) {
sel.selectedIndex = i;
reset_err_hl();
break;
}
}
}
function reset_err_hl() {
document.getElementById("aroundlang").style.backgroundColor = null;
}
function highlight() {
var select = document.getElementById("lang");
var alias = select.options.item(select.selectedIndex).value
if (alias == "") {
document.getElementById("aroundlang").style.backgroundColor = "#ffcccc";
return;
}
pyodide.globals['alias'] = alias;
var select = document.getElementById("style");
pyodide.globals['style'] = select.options.item(select.selectedIndex).value;
pyodide.runPython('lexer = pygments.lexers.get_lexer_by_name(alias)');
pyodide.runPython('fmter = pygments.formatters.html.HtmlFormatter(noclasses=True, style=style)');
var file = document.getElementById("file").files[0];
if (file) {
file.arrayBuffer().then(function(buf) {
pyodide.globals['code_mem'] = buf;
pyodide.runPython('code = bytes(code_mem)');
document.getElementById("copy_btn").style.display = "none";
highlight_now();
});
} else {
var code = document.getElementById("code").value;
pyodide.globals['code'] = code;
var link = document.location.origin + document.location.pathname +
"?lexer=" + encodeURIComponent(alias) + "&code=" + encodeURIComponent(code);
document.getElementById("copy_field").value = link;
document.getElementById("copy_btn").style.display = "";
highlight_now();
}
}
function highlight_now() {
var out = document.getElementById("hlcode");
out.innerHTML = pyodide.runPython('pygments.highlight(code, lexer, fmter)');
document.location.hash = "#try";
document.getElementById("hlcodedl").style.display = "block";
}
function copy_link() {
var copy_field = document.getElementById("copy_field");
copy_field.select();
copy_field.setSelectionRange(0, 99999);
document.execCommand("copy");
}
function download_code() {
var filename = "highlighted.html";
var hlcode = document.getElementById("hlcode").innerHTML;
var blob = new Blob([hlcode], {type: 'text/html'});
if (window.navigator.msSaveOrOpenBlob) {
window.navigator.msSaveBlob(blob, filename);
}
else{
var elem = window.document.createElement('a');
elem.href = window.URL.createObjectURL(blob);
elem.download = filename;
document.body.appendChild(elem);
elem.click();
document.body.removeChild(elem);
window.URL.revokeObjectURL(elem.href);
}
}
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