window.onload = function() {
//DsPdfViewer.LicenseKey = "***key***";
let viewer;
window.gcd = function(a, b) {
if (!b) return a;
return gcd(b, a % b);
}
window.solveForm = function() {
let fldValue1 = viewer.findAnnotation('fldValue1', {findField: 'fieldName'}),
fldValue2 = viewer.findAnnotation('fldValue2', {findField: 'fieldName'}),
fldResult = viewer.findAnnotation('fldResult', {findField: 'fieldName'});
Promise.all([fldValue1, fldValue2, fldResult]).then(function(arr) {
fldValue1 = arr[0][0].annotation; fldValue2 = arr[1][0].annotation; fldResult = arr[2][0].annotation;
fldResult.fieldValue = gcd(fldValue1.fieldValue, fldValue2.fieldValue);
viewer.updateAnnotation(0, fldResult);
});
}
window.validateForm = function() {
let a, b, result, expectedAnswer;
let validationResult = viewer.validateForm(function(fieldValue, field) {
switch(field.fieldName) {
case 'fldValue1':
a = parseFloat(fieldValue);
break;
case 'fldValue2':
b = parseFloat(fieldValue);
break;
case 'fldResult':
result = parseFloat(fieldValue);
break;
}
if(a && b && result) {
expectedAnswer = gcd(a, b);
if(parseFloat(fieldValue) !== expectedAnswer) {
return 'Incorrect answer.';
}
}
return true;
}, true);
if(expectedAnswer) {
if(validationResult !== true) {
viewer.showMessage(validationResult, 'Correct answer is ' + expectedAnswer, 'error');
} else {
viewer.showMessage('Your answer is correct.', null, 'info');
}
} else {
viewer.showMessage('Please input your answer.', null, 'warn');
}
setTimeout(function(){ viewer.repaint([0]); }, 100);
}
viewer = new DsPdfViewer("#viewer");
viewer.addDefaultPanels();
viewer.options.jsExecutionConfig = {
// Handler function which will be called before JS action execution started.
before: function() {
// Returned promise will be awaited before further JS execution.
return new Promise(function(resolve) {
if(document.activeElement && document.activeElement.blur)
document.activeElement.blur();
setTimeout(resolve, 100);
});
},
// Handler function which will be called after JS action execution finished.
after: function() {
}
};
viewer.open("/document-solutions/javascript-pdf-viewer/demos/product-bundles/assets/pdf/viewer-custom-validation.pdf");
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Localization</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="./src/styles.css">
<script src="/document-solutions/javascript-pdf-viewer/demos/product-bundles/build/dspdfviewer.js"></script>
<script src="/document-solutions/javascript-pdf-viewer/demos/product-bundles/build/wasmSupportApi.js"></script>
<script src="/document-solutions/javascript-pdf-viewer/demos/resource/js/init.js"></script>
<script src="./src/app.js"></script>
</head>
<body>
<div id="viewer"></div>
</body>
</html>
#viewer {
height: 100%;
}
