24eme/signaturepdf
24eme/signaturepdf
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Code Issues Releases Wiki Activity

Automatically reload the pdf if there is a new signature

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This commit is contained in:
Vincent LAURENT 2022-04-15 00:47:36 +02:00
parent 39380bd641
commit ebf7e0e889
2 changed files with 26 additions and 4 deletions
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28
public/js/signature.js
View File

@ -16,9 +16,10 @@ var menu = null;
var menuOffcanvas = null; var menuOffcanvas = null;
var currentCursor = null; var currentCursor = null;
var signaturePad = null; var signaturePad = null;
var nblayers = null;
var loadPDF = async function(pdfBlob, filename) { var loadPDF = async function(pdfBlob, filename) {
let pdfjsLib = window['pdfjs-dist/build/pdf']; const pdfjsLib = window['pdfjs-dist/build/pdf'];
pdfjsLib.GlobalWorkerOptions.workerSrc = '/vendor/pdf.worker.js?legacy'; pdfjsLib.GlobalWorkerOptions.workerSrc = '/vendor/pdf.worker.js?legacy';
let url = await URL.createObjectURL(pdfBlob); let url = await URL.createObjectURL(pdfBlob);
@ -37,7 +38,7 @@ var loadPDF = async function(pdfBlob, filename) {
if(document.getElementById('input_pdf_share')) { if(document.getElementById('input_pdf_share')) {
document.getElementById('input_pdf_share').files = dataTransfer.files; document.getElementById('input_pdf_share').files = dataTransfer.files;
} }
var loadingTask = pdfjsLib.getDocument(url); let loadingTask = pdfjsLib.getDocument(url);
loadingTask.promise.then(function(pdf) { loadingTask.promise.then(function(pdf) {
if(pdf.numPages > maxPage) { if(pdf.numPages > maxPage) {
@ -156,6 +157,23 @@ var loadPDF = async function(pdfBlob, filename) {
}); });
}; };
var reloadPDF = async function(url) {
const pdfjsLib = window['pdfjs-dist/build/pdf'];
pdfjsLib.GlobalWorkerOptions.workerSrc = '/vendor/pdf.worker.js?legacy';
pdfjsLib.getDocument(url).promise.then(function(pdf) {
for(let pageNumber = 1; pageNumber <= pdf.numPages; pageNumber++ ) {
pdf.getPage(pageNumber).then(function(page) {
page.render({
canvasContext: document.getElementById('canvas-pdf-' + (page.pageNumber - 1)).getContext('2d'),
viewport: page.getViewport({scale: currentScale}),
enhanceTextSelection: true
});
});
}
});
}
var is_mobile = function() { var is_mobile = function() {
return !(window.getComputedStyle(document.getElementById('is_mobile')).display === "none"); return !(window.getComputedStyle(document.getElementById('is_mobile')).display === "none");
}; };
@ -994,7 +1012,11 @@ var updateNbLayers = function() {
xhr.open('GET', '/signature/'+hash+'/nblayers', true); xhr.open('GET', '/signature/'+hash+'/nblayers', true);
xhr.onload = function() { xhr.onload = function() {
if (xhr.status == 200) { if (xhr.status == 200) {
let nblayers = xhr.response; let newNblayers = xhr.response;
if(nblayers !== null && nblayers != newNblayers) {
reloadPDF('/signature/'+hash+'/pdf');
}
nblayers = newNblayers;
document.querySelectorAll('.nblayers').forEach(function(item) { document.querySelectorAll('.nblayers').forEach(function(item) {
item.innerHTML = nblayers; item.innerHTML = nblayers;
}); });

2
templates/signature.html.php
View File

@ -247,6 +247,6 @@
hash = "<?php echo $hash ?>"; hash = "<?php echo $hash ?>";
<?php endif; ?> <?php endif; ?>
</script> </script>
<script src="/js/signature.js?202204141030"></script> <script src="/js/signature.js?202204150047"></script>
</body> </body>
</html> </html>