mirror of
https://github.com/24eme/signaturepdf.git
synced 2023-08-25 09:33:08 +02:00
297 lines
13 KiB
JavaScript
297 lines
13 KiB
JavaScript
var windowWidth = window.innerWidth;
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var is_mobile = function() {
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return !(window.getComputedStyle(document.getElementById('is_mobile')).display === "none");
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};
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var nbPagePerLine = 5;
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if(is_mobile()) {
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nbPagePerLine = 2;
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}
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var pdfjsLib = window['pdfjs-dist/build/pdf'];
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pdfjsLib.GlobalWorkerOptions.workerSrc = '/vendor/pdf.worker.js?legacy';
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var nbPDF = 0;
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var pages = [];
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var loadPDF = async function(pdfBlob, filename, pdfIndex) {
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let url = await URL.createObjectURL(pdfBlob);
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let dataTransfer = new DataTransfer();
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let i = 0;
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for (i = 0; i < document.getElementById('input_pdf').files.length; i++) {
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dataTransfer.items.add(document.getElementById('input_pdf').files[i]);
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}
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dataTransfer.items.add(new File([pdfBlob], filename, {
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type: 'application/pdf'
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}));
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document.getElementById('input_pdf').files = dataTransfer.files;
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let pdfLetter = String.fromCharCode(96 + i+1).toUpperCase();
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let loadingTask = pdfjsLib.getDocument(url);
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loadingTask.promise.then(function(pdf) {
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for(var pageNumber = 1; pageNumber <= pdf.numPages; pageNumber++ ) {
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pdf.getPage(pageNumber).then(function(page) {
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let pageIndex = pdfLetter + "_" + (page.pageNumber - 1);
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pages[pageIndex] = page;
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document.getElementById('container-pages').insertAdjacentHTML('beforeend', '<div class="position-relative mt-0 ms-1 me-0 mb-1 canvas-container shadow-sm d-flex align-items-center justify-content-center bg-white" id="canvas-container-' + pageIndex +'" draggable="true"><canvas class="canvas-pdf" style="border: 2px solid transparent;"></canvas><div class="position-absolute top-50 start-50 translate-middle p-2 ps-3 pe-3 rounded-circle container-resize btn-drag"><i class="bi bi-arrows-move"></i></div><div class="position-absolute top-50 end-0 translate-middle-y p-2 ps-3 pe-3 rounded-circle container-rotate btn-rotate"><i class="bi bi-arrow-clockwise"></i></div><div class="position-absolute text-center w-100 pt-1 container-checkbox pb-4" style="background: rgb(255,255,255,0.8); bottom: 0; cursor: pointer;"><div class="form-switch"><input form="form_pdf" class="form-check-input checkbox-page" role="switch" type="checkbox" checked="checked" style="cursor: pointer;" value="'+pdfLetter+page.pageNumber+'" /></div></div><p class="position-absolute text-center w-100 ps-2 pe-2 pb-0 mb-1 opacity-75" style="bottom: 0; font-size: 10px; text-overflow: ellipsis; white-space: nowrap; overflow: hidden;">Page '+page.pageNumber+' - '+filename+'</p><input type="hidden" class="input-rotate" value="0" id="input_rotate_'+pageIndex+'" /></div>');
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let canvasContainer = document.getElementById('canvas-container-' + pageIndex);
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canvasContainer.addEventListener('dragstart', function(e) {
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this.querySelector('.container-checkbox').classList.add('d-none');
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this.querySelector('.container-resize').classList.add('d-none');
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this.querySelector('.canvas-pdf').classList.add('shadow-lg');
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this.querySelector('.canvas-pdf').style.border = '2px dashed #777';
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e.dataTransfer.setData('element', this.id);
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this.style.opacity = 0.4;
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document.querySelector('#container-bar').classList.add('d-none');
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});
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canvasContainer.addEventListener('dragend', function(e) {
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this.querySelector('.container-checkbox').classList.remove('d-none');
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this.querySelector('.container-resize').classList.remove('d-none');
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this.querySelector('.canvas-pdf').classList.remove('shadow-lg');
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this.querySelector('.canvas-pdf').style.border = '2px solid transparent';
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this.style.opacity = 1;
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document.querySelector('#container-bar').classList.remove('d-none');
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stateCheckbox(this.querySelector('input[type=checkbox]'));
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});
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canvasContainer.addEventListener('dragover', function(e) {
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if (e.preventDefault) {
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e.preventDefault();
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}
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if(e.layerX > e.target.clientWidth / 2) {
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this.insertAdjacentElement('beforebegin', document.querySelector('#'+e.dataTransfer.getData('element')));
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} else {
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this.insertAdjacentElement('afterend', document.querySelector('#'+e.dataTransfer.getData('element')));
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}
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return false;
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});
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canvasContainer.querySelector('input[type=checkbox]').addEventListener('click', function(e) {
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e.stopPropagation();
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});
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canvasContainer.querySelector('input[type=checkbox]').addEventListener('change', function(e) {
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stateCheckbox(this);
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stateCheckboxAll();
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});
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canvasContainer.querySelector('.container-checkbox').addEventListener('click', function(e) {
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let checkbox = this.querySelector('input[type=checkbox]');
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checkbox.checked = !checkbox.checked;
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stateCheckbox(checkbox);
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stateCheckboxAll();
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});
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canvasContainer.querySelector('.btn-rotate').addEventListener('click', function(e) {
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let inputRotate = document.querySelector('#input_rotate_'+pageIndex);
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inputRotate.value = (parseInt(inputRotate.value) + 90) % 360;
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pageRender(pageIndex);
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})
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pageRender(pageIndex);
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});
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}
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}, function (reason) {
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console.error(reason);
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});
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};
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var pageRenderAll = function() {
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for(pageIndex in pages) {
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pageRender(pageIndex);
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}
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}
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var pageRender = function(pageIndex) {
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let page = pages[pageIndex];
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let rotation = parseInt(document.querySelector('#input_rotate_'+pageIndex).value);
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let viewport = page.getViewport({scale: 1, rotation: rotation});
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let size = Math.floor((document.getElementById('container-pages').offsetWidth - (8*(nbPagePerLine+1)) - 12) / nbPagePerLine);
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let scaleWidth = size / viewport.width;
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let scaleHeight = size / viewport.height;
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let viewportWidth = page.getViewport({scale: scaleWidth, rotation: rotation});
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let viewportHeight = page.getViewport({scale: scaleHeight, rotation: rotation});
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if(viewportWidth.height > size) {
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viewport = viewportHeight;
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} else {
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viewport = viewportWidth;
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}
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let canvasContainer = document.getElementById('canvas-container-' + pageIndex);
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canvasContainer.style.height = (size + 4) + "px";
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canvasContainer.style.width = (size + 4) + "px";
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let canvasPDF = canvasContainer.querySelector('.canvas-pdf');
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let context = canvasPDF.getContext('2d');
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canvasPDF.height = viewport.height;
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canvasPDF.width = viewport.width;
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page.render({
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canvasContext: context,
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viewport: viewport,
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});
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}
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var stateCheckbox = function(checkbox) {
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let checkboxContainer = checkbox.parentNode.parentNode.parentNode;
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if(checkbox.checked) {
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checkboxContainer.querySelector('.canvas-pdf').style.opacity = '1';
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checkboxContainer.querySelector('.canvas-pdf').style.cursor = 'inherit';
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checkboxContainer.querySelector('.container-resize').classList.remove('d-none');
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checkboxContainer.querySelector('.container-rotate').classList.remove('d-none');
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checkboxContainer.querySelector('.container-checkbox').style.background = 'rgb(255,255,255,0.8)';
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} else {
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checkboxContainer.querySelector('.canvas-pdf').style.opacity = '0.3';
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checkboxContainer.querySelector('.canvas-pdf').style.cursor = 'pointer';
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checkboxContainer.querySelector('.container-resize').classList.add('d-none');
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checkboxContainer.querySelector('.container-rotate').classList.add('d-none');
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checkboxContainer.querySelector('.container-checkbox').style.background = 'transparent';
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}
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};
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var stateCheckboxAll = function() {
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document.querySelector('#checkbox_all_pages').checked = (document.querySelectorAll('.checkbox-page:checked').length == document.querySelectorAll('.checkbox-page').length);
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};
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var createEventsListener = function() {
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document.querySelector('#checkbox_all_pages').addEventListener('change', function() {
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let checkboxAll = this;
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document.querySelectorAll('.checkbox-page').forEach(function(checkbox) {
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checkbox.checked = checkboxAll.checked;
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stateCheckbox(checkbox);
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});
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});
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document.getElementById('save').addEventListener('click', function(event) {
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let order = [];
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document.querySelectorAll('.canvas-container').forEach(function(canvasContainer) {
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let checkbox = canvasContainer.querySelector('.checkbox-page');
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let inputRotate = canvasContainer.querySelector('.input-rotate');
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let pageValue = "";
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if(checkbox.checked) {
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pageValue = checkbox.value;
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}
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if(pageValue && inputRotate.value == 90) {
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pageValue = pageValue + "-east";
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}
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if(pageValue && inputRotate.value == 180) {
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pageValue = pageValue + "-south";
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}
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if(pageValue && inputRotate.value == 270) {
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pageValue = pageValue + "-west";
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}
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if(pageValue) {
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order.push(pageValue);
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}
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});
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document.querySelector('#input_pages').value = order.join(',');
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});
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document.getElementById('input_pdf_upload_2').addEventListener('change', async function(event) {
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if(this.files[0].size > maxSize) {
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alert("Le PDF ne doit pas dépasser " + Math.round(maxSize/1024/1024) + " Mo");
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this.value = "";
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return;
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}
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const cache = await caches.open('pdf');
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let filename = this.files[0].name;
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let response = new Response(this.files[0], { "status" : 200, "statusText" : "OK" });
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let urlPdf = '/pdf/'+filename;
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await cache.put(urlPdf, response);
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let pdfBlob = await getPDFBlobFromCache(urlPdf);
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nbPDF++;
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loadPDF(pdfBlob, filename, nbPDF);
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this.value = '';
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});
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document.getElementById('btn-zoom-decrease').addEventListener('click', function(event) {
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nbPagePerLine++;
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pageRenderAll();
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});
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document.getElementById('btn-zoom-increase').addEventListener('click', function(event) {
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nbPagePerLine--;
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pageRenderAll();
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});
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}
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async function getPDFBlobFromCache(cacheUrl) {
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const cache = await caches.open('pdf');
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let responsePdf = await cache.match(cacheUrl);
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if(!responsePdf) {
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return null;
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}
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let pdfBlob = await responsePdf.blob();
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return pdfBlob;
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}
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async function uploadFromUrl(url) {
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history.replaceState({}, '', '/organization');
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var response = await fetch(url);
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if(response.status != 200) {
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return;
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}
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var pdfBlob = await response.blob();
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if(pdfBlob.type != 'application/pdf' && pdfBlob.type != 'application/octet-stream') {
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return;
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}
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let dataTransfer = new DataTransfer();
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let filename = url.replace(/^.*\//, '');
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dataTransfer.items.add(new File([pdfBlob], filename, {
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type: 'application/pdf'
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}));
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document.getElementById('input_pdf_upload').files = dataTransfer.files;
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document.getElementById('input_pdf_upload').dispatchEvent(new Event("change"));
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}
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var pageUpload = async function() {
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document.getElementById('input_pdf_upload').value = '';
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document.getElementById('page-upload').classList.remove('d-none');
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document.getElementById('page-organization').classList.add('d-none');
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document.getElementById('input_pdf_upload').focus();
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const cache = await caches.open('pdf');
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document.getElementById('input_pdf_upload').addEventListener('change', async function(event) {
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if(document.getElementById('input_pdf_upload').files[0].size > maxSize) {
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alert("Le PDF ne doit pas dépasser " + Math.round(maxSize/1024/1024) + " Mo");
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document.getElementById('input_pdf_upload').value = "";
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return;
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}
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let filename = document.getElementById('input_pdf_upload').files[0].name;
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let response = new Response(document.getElementById('input_pdf_upload').files[0], { "status" : 200, "statusText" : "OK" });
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let urlPdf = '/pdf/'+filename;
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await cache.put(urlPdf, response);
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history.pushState({}, '', '/organization#'+filename);
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pageOrganization(urlPdf)
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});
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}
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var pageOrganization = async function(url) {
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let filename = url.replace('/pdf/', '');
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document.title = filename + ' - ' + document.title;
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document.getElementById('page-upload').classList.add('d-none');
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document.getElementById('page-organization').classList.remove('d-none');
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let pdfBlob = await getPDFBlobFromCache(url);
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if(!pdfBlob) {
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document.location = '/organization';
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return;
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}
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createEventsListener();
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loadPDF(pdfBlob, filename, nbPDF);
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};
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(function () {
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if(window.location.hash && window.location.hash.match(/^\#http/)) {
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let hashUrl = window.location.hash.replace(/^\#/, '');
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pageUpload();
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uploadFromUrl(hashUrl);
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} else if(window.location.hash) {
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pageOrganization('/pdf/'+window.location.hash.replace(/^\#/, ''));
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} else {
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pageUpload();
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}
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window.addEventListener('hashchange', function() {
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window.location.reload();
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})
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})(); |