function processFile(blob, fileName) {
var out = document.getElementById('box2');
function flashCopiedUi() {
var status = document.getElementById('clipboard-status');
var check = document.getElementById('clipboard-check');
if (typeof showClipboardNotification === 'function') {
showClipboardNotification();
} else {
if (status) status.style.display = 'block';
if (check) check.style.display = 'inline';
}
var btns = document.querySelectorAll('.copy-btn');
for (var i = 0; i < btns.length; i++) {
btns[i].innerHTML = ' Copied!';
}
if (btns.length) {
setTimeout(function () {
for (var i = 0; i < btns.length; i++) {
btns[i].innerHTML = '';
}
}, 2000);
}
}
function autoCopyResultText(value) {
if (!value) return;
function fallbackCopy() {
if (!out) return;
var prevStart = out.selectionStart;
var prevEnd = out.selectionEnd;
var previousFocus = document.activeElement;
try {
out.focus();
out.select();
if (document.execCommand('copy')) {
flashCopiedUi();
}
} catch (_) { }
try {
if (typeof prevStart === 'number' && typeof prevEnd === 'number' && out.setSelectionRange) {
out.setSelectionRange(prevStart, prevEnd);
}
} catch (_) { }
try {
if (previousFocus && previousFocus !== out && typeof previousFocus.focus === 'function') {
previousFocus.focus();
}
} catch (_) { }
}
if (navigator.clipboard && navigator.clipboard.writeText) {
navigator.clipboard.writeText(value).then(function () {
flashCopiedUi();
}).catch(function () {
fallbackCopy();
});
} else {
fallbackCopy();
}
}
if (out) out.value = 'Loading OCR engine (first run downloads ~10 MB)...';
loadScriptPromise('https://cdn.jsdelivr.net/npm/tesseract.js@5.1.1/dist/tesseract.min.js').then(function() {
if (!window.Tesseract) { alert('OCR library failed to load.'); return; }
var imgUrl = URL.createObjectURL(blob);
Tesseract.recognize(imgUrl, 'eng', {
logger: function(m) {
if (out && m && m.status) {
var pct = m.progress != null ? ' ' + Math.round(m.progress * 100) + '%' : '';
out.value = m.status + pct;
}
}
}).then(function(result) {
var text = (result && result.data && result.data.text) || '';
if (out) out.value = text.trim() ? text : '(No text was detected in this image.)';
if (text && text.trim()) autoCopyResultText(text);
var base = (fileName || 'image').replace(/\.[^.]+$/, '');
var txtBlob = new Blob([text], { type: 'text/plain;charset=utf-8' });
add_file_output(URL.createObjectURL(txtBlob), base + '.txt');
URL.revokeObjectURL(imgUrl);
$('#waiting').hide();
$('#social').fadeIn(2000);
}).catch(function(err) {
if (out) out.value = '';
alert('OCR failed: ' + (err && err.message || err));
URL.revokeObjectURL(imgUrl);
});
}).catch(function() { alert('Could not load the OCR library.'); });
}
var _loadedScripts = {};
function loadScriptPromise(url) {
if (_loadedScripts[url]) return _loadedScripts[url];
_loadedScripts[url] = new Promise(function (resolve, reject) {
var s = document.createElement('script');
s.src = url;
s.onload = resolve;
s.onerror = reject;
document.head.appendChild(s);
});
return _loadedScripts[url];
}
function replaceAll(find, replace, str) {
return str.replace(new RegExp(find, 'g'), replace);
}
function beautify(str) {
var result = '';
var length = str.length;
var i = 0;
var braceCountLeft = 0;
var braceCountRight = 0;
var withinQuotes = false;
while (i < length) {
var c = str[i];
if (c == '"' && (i == 0 || c[i - 1] != '\\')) {
// non-escaped quotes
withinQuotes = !withinQuotes;
}
if (!withinQuotes && (c == '}' || c == '{' || c == ',')) {
console.log('Start####' + result);
// look back and remove carriage returns and whitespace that are already there
var resultIndex = result.length - 1;
while (resultIndex >= 0 && (result[resultIndex] == ' ' || result[resultIndex] == '\r' || result[resultIndex] == '\n' || result[resultIndex] == '\t')) {
resultIndex = resultIndex - 1;
result = result.substr(0, resultIndex + 1);
console.log('char ' + result[resultIndex] + '-----' + result + 'zzz ' + result.length + ' ' + resultIndex);
}
if (c == '{') {
braceCountLeft++;
result += c + '\r' + GetTabs(braceCountLeft - braceCountRight);
} else if (c == '}') {
braceCountRight++;
// precede with carriage return
result += '\r' + GetTabs(braceCountLeft - braceCountRight) + c;
} else if (c == ',') {
result += c + '\r' + GetTabs(braceCountLeft - braceCountRight);
}
var nextChar = '';
// advance through whitespace and remove carriage returns that are already there
while (i < length && (str[i + 1] == ' ' || str[i + 1] == '\r' || str[i + 1] == '\n' || str[i + 1] == '\t')) {
i++;
}
} else {
result += str[i];
}
i++;
}
return result;
}
function GetTabs(count) {
var result = '';
for (var i = 0; i < count; i++) {
result += ' ';
}
return result;
}