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thurtle: Support unicode in body

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This commit is contained in:
Remko Tronçon 2024-01-20 12:12:29 +01:00
parent 0e4fda92bb
commit 88daa57838
1 changed files with 34 additions and 4 deletions
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38
src/web/thurtle/thurtle.tsx
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@ -21,6 +21,31 @@ import draw from "./draw";
declare let bootstrap: any; declare let bootstrap: any;
async function b64encode(bs: Uint8Array, forURL?: boolean) {
const url = await new Promise<string>((resolve) => {
const reader = new FileReader();
reader.onload = () => {
resolve(reader.result as string);
};
reader.readAsDataURL(new Blob([bs]));
});
const result = url.slice(url.indexOf(",") + 1);
return forURL
? result.replace(/\//g, "_").replace(/\+/g, "-").replace(/=+$/, "")
: result;
}
function b64decode(s: string) {
if (s.length % 4 != 0) {
s += "===".slice(0, 4 - (s.length % 4));
}
return new Uint8Array(
[...atob(s.replace(/_/g, "/").replace(/-/g, "+"))].map((c) =>
c.charCodeAt(0)
)
);
}
function parseQS(sqs = window.location.search) { function parseQS(sqs = window.location.search) {
const qs: Record<string, string> = {}; const qs: Record<string, string> = {};
const sqss = sqs const sqss = sqs
@ -492,6 +517,9 @@ async function downloadPNG(ev: MouseEvent) {
img.style.display = "none"; img.style.display = "none";
document.body.appendChild(img); document.body.appendChild(img);
try { try {
const imgSrc =
"data:image/svg+xml;base64," +
(await b64encode(new TextEncoder().encode(svg.data)));
const dataURL = await new Promise<string>((resolve, reject) => { const dataURL = await new Promise<string>((resolve, reject) => {
img.onerror = (e) => { img.onerror = (e) => {
reject(e); reject(e);
@ -504,7 +532,7 @@ async function downloadPNG(ev: MouseEvent) {
ctx.drawImage(img, 0, 0, canvas.width, canvas.height); ctx.drawImage(img, 0, 0, canvas.width, canvas.height);
resolve(canvas.toDataURL("image/png")); resolve(canvas.toDataURL("image/png"));
}; };
img.src = "data:image/svg+xml;base64," + btoa(svg.data); img.src = imgSrc;
}); });
const blob = await (await fetch(dataURL)).blob(); const blob = await (await fetch(dataURL)).blob();
saveAs(blob, programsEl.value + ".png"); saveAs(blob, programsEl.value + ".png");
@ -516,14 +544,16 @@ async function downloadPNG(ev: MouseEvent) {
} }
} }
function share(ev: MouseEvent) { async function share(ev: MouseEvent) {
ev.preventDefault(); ev.preventDefault();
shareModalTitleEl.innerText = programsEl.value; shareModalTitleEl.innerText = programsEl.value;
shareModalURLEl.value = `${window.location.protocol}//${ shareModalURLEl.value = `${window.location.protocol}//${
window.location.host window.location.host
}${window.location.pathname}?pn=${encodeURIComponent( }${window.location.pathname}?pn=${encodeURIComponent(
programsEl.value programsEl.value
)}&p=${encodeURIComponent(btoa(editor.getValue()))}&ar=1`; )}&p=${encodeURIComponent(
await b64encode(new TextEncoder().encode(editor.getValue()), true)
)}&ar=1`;
shareModal.show(); shareModal.show();
} }
@ -581,7 +611,7 @@ async function reset() {
///////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////
if (qs.p) { if (qs.p) {
saveProgram(qs.pn ?? "", atob(qs.p), true); saveProgram(qs.pn ?? "", new TextDecoder().decode(b64decode(qs.p)), true);
loadPrograms(); loadPrograms();
loadProgram(qs.pn); loadProgram(qs.pn);
} else { } else {