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"use strict";
function savePatch(ev) {
let text = document.getElementById("patch")
localStorage["UF2_PATCH"] = text.value
}
function genRnd(ev) {
ev.preventDefault()
let vals = new Uint32Array(1)
window.crypto.getRandomValues(vals)
document.getElementById("rnd-res").textContent = "Random number: 0x" +
("000000000" + vals[0].toString(16)).slice(-8)
}
function restorePatch() {
let text = document.getElementById("patch")
text.value = localStorage["UF2_PATCH"] || ""
document.getElementById("apply").onclick = applyPatch
document.getElementById("rnd").onclick = genRnd
}
function download(buf, name) {
let blob = new Blob([buf], {
type: "application/x-uf2"
});
let url = URL.createObjectURL(blob);
let a = document.createElement("a");
document.body.appendChild(a);
a.style = "display: none";
a.href = url;
a.download = name;
a.click();
window.URL.revokeObjectURL(url);
}
let currUF2 = null
let currUF2Name = ""
function showMSG() {
if (infoMsg)
document.getElementById("currconfig").textContent = infoMsg
}
function wrap(f) {
try {
infoMsg = ""
f()
showMSG()
} catch (e) {
log("Exception: " + e.message)
showMSG()
}
}
function defines() {
download(configkeysH(), "configkeys.h")
}
function applyPatch() {
wrap(() => {
let text = document.getElementById("patch")
let newcfg = text.value.trim()
if (!currUF2)
log("You have to drop a UF2 or BIN file with bootloader above before applying patches.")
else if (!newcfg)
log("You didn't give any patch to apply.")
else {
let buf = currUF2.slice()
let r = patchConfig(buf, newcfg)
if (!r.changes) {
log("No changes.")
} else {
log("\nChanges:\n" + r.changes)
}
log("Downloading " + currUF2Name)
download(r.patched, currUF2Name)
}
})
}
function dropHandler(ev) {
ev.preventDefault();
for (let i = 0; i < ev.dataTransfer.items.length; i++) {
if (ev.dataTransfer.items[i].kind === 'file') {
let file = ev.dataTransfer.items[i].getAsFile();
let reader = new FileReader();
infoMsg = ""
reader.onload = e => {
wrap(() => {
let buf = new Uint8Array(reader.result)
let cfg = readConfig(buf)
currUF2 = buf
infoMsg += "\n" + cfg
currUF2Name = file.name
})
}
reader.readAsArrayBuffer(file);
break
}
}
}
function dragOverHandler(ev) {
ev.preventDefault();
ev.dataTransfer.dropEffect = 'copy';
}
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