279 lines
12 KiB
JavaScript
279 lines
12 KiB
JavaScript
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// Loaded via <script> tag, create shortcut to access PDF.js exports.
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var pdfjsLib = window['pdfjs-dist/build/pdf'];
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// The workerSrc property shall be specified.
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pdfjsLib.GlobalWorkerOptions.workerSrc = '/vendor/pdf.worker.js?legacy';
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// Asynchronous download of PDF
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var loadingTask = pdfjsLib.getDocument(url);
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loadingTask.promise.then(function(pdf) {
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var fontCaveat = null;
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var copiedObject = null;
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var activeCanvas = null;
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var activeCanvasPointer = null;
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var canvasEditions = [];
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var svgCollections = [];
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if(localStorage.getItem('svgCollections')) {
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svgCollections = JSON.parse(localStorage.getItem('svgCollections'));
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console.log(svgCollections);
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}
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opentype.load('/vendor/fonts/Caveat-Regular.ttf', function(err, font) {
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fontCaveat = font;
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});
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var displaysSVG = function() {
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document.getElementById('svg_list').innerHTML = "";
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svgCollections.forEach((svg, i) => {
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var inputRadio = document.createElement('input');
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inputRadio.type = "radio";
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inputRadio.classList.add("btn-check");
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inputRadio.id="radio_svg_"+i;
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inputRadio.name = "svg_2_add";
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inputRadio.autocomplete = "off";
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inputRadio.value = svg;
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var svgButton = document.createElement('label');
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svgButton.classList.add('btn');
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svgButton.classList.add('btn-lg');
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svgButton.classList.add('btn-outline-secondary');
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svgButton.htmlFor = "radio_svg_"+i;
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var svgImg = document.createElement('img');
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svgImg.src = svg;
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svgImg.style = "max-width: 180px;max-height: 70px;";
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svgButton.appendChild(svgImg);
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document.getElementById('svg_list').appendChild(inputRadio);
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document.getElementById('svg_list').appendChild(svgButton);
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});
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}
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displaysSVG();
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document.getElementById('btn_modal_ajouter').addEventListener('click', function() {
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if(document.getElementById('nav-draw-tab').classList.contains('active')) {
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svgCollections.push(document.getElementById('img-upload').src);
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}
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if(document.getElementById('nav-type-tab').classList.contains('active')) {
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var fontPath = fontCaveat.getPath(document.getElementById('input-text-signature').value, 0, 0, 42);
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var fabricPath = new fabric.Path(fontPath.toPathData());
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fabricPath.top = 0;
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fabricPath.left = 0;
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fabricPath.height = fabricPath.getScaledHeight();
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var textCanvas = document.createElement('canvas');
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textCanvas.width = fabricPath.getScaledWidth();
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textCanvas.height = fabricPath.getScaledHeight();
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var textCanvas = new fabric.Canvas(textCanvas);
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textCanvas.add(fabricPath).renderAll();
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svgCollections.push("data:image/svg+xml;base64,"+btoa(textCanvas.toSVG()));
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}
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if(document.getElementById('nav-import-tab').classList.contains('active')) {
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svgCollections.push(document.getElementById('img-upload').src);
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}
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displaysSVG();
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document.querySelector('#svg_list label:last-child').click();
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localStorage.setItem('svgCollections', JSON.stringify(svgCollections));
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});
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function dataURLtoBlob(dataurl) {
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var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1],
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bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);
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while(n--){
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u8arr[n] = bstr.charCodeAt(n);
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}
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return new Blob([u8arr], {type:mime});
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}
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function trimSvgWhitespace(svgContent) {
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if(!svgContent) {
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return null;
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}
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var svgContainer = document.createElement("div")
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svgContainer.classList.add('invisible');
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svgContainer.classList.add('position-absolute');
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svgContainer.classList.add('top-0');
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svgContainer.classList.add('start-0');
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svgContainer.style = "z-index: -1;";
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svgContainer.innerHTML = svgContent;
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document.body.appendChild(svgContainer);
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var svg = svgContainer.querySelector('svg');
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var box = svg.getBBox();
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svg.setAttribute("viewBox", [box.x, box.y, box.width, box.height].join(" "));
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svgContent = svgContainer.innerHTML;
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document.body.removeChild(svgContainer)
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return svgContent = svgContainer.innerHTML;
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document;
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}
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var signaturePad = new SignaturePad(document.getElementById('signature-pad'), {
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penColor: 'rgb(0, 0, 0)',
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minWidth: 1.25,
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maxWidth: 2,
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throttle: 0,
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onEnd: function() {
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const file = new File([dataURLtoBlob(signaturePad.toDataURL("image/svg+xml"))], "draw.svg", {
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type: 'image/svg+xml'
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});
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var data = new FormData();
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data.append('file', file);
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xhr = new XMLHttpRequest();
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xhr.open( 'POST', document.getElementById('form-image-upload').action, true );
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xhr.onreadystatechange = function () {
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var svgImage = "data:image/svg+xml;base64,"+btoa(trimSvgWhitespace(this.responseText));
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document.getElementById('img-upload').src = svgImage;
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document.getElementById('img-upload').classList.remove("d-none");
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document.getElementById('btn_modal_ajouter').focus();
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};
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xhr.send( data );
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}
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});
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document.querySelectorAll('#modalAddSvg .nav-link').forEach(function(item) { item.addEventListener('shown.bs.tab', function (event) {
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var firstInput = document.querySelector(event.target.dataset.bsTarget).querySelector('input');
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if(firstInput) {
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firstInput.focus();
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}
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})});
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document.getElementById('modalAddSvg').addEventListener('shown.bs.modal', function (event) {
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document.querySelector('#modalAddSvg #nav-tab button:first-child').focus()
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})
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document.getElementById('modalAddSvg').addEventListener('hidden.bs.modal', function (event) {
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signaturePad.clear();
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document.getElementById('input-text-signature').value = null;
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document.getElementById('input-image-upload').value = null;
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document.getElementById('img-upload').src = null;
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document.getElementById('img-upload').classList.add("d-none");
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bootstrap.Tab.getOrCreateInstance(document.querySelector('#modalAddSvg #nav-tab button:first-child')).show();
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})
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document.getElementById('input-text-signature').addEventListener('keypress', function(event) {
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if(event.key == 'Enter') {
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document.getElementById('btn_modal_ajouter').click()
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}
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})
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document.getElementById('input-image-upload').addEventListener('change', function(event) {
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var data = new FormData();
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data.append('file', document.getElementById('input-image-upload').files[0]);
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xhr = new XMLHttpRequest();
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xhr.open( 'POST', document.getElementById('form-image-upload').action, true );
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xhr.onreadystatechange = function () {
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var svgImage = "data:image/svg+xml;base64,"+btoa(trimSvgWhitespace(this.responseText));
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document.getElementById('img-upload').src = svgImage;
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document.getElementById('img-upload').classList.remove("d-none");
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document.getElementById('btn_modal_ajouter').focus();
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};
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xhr.send( data );
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event.preventDefault();
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});
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document.getElementById('save').addEventListener('click', function(event) {
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canvasEditions.forEach(function(canvasEdition, index) {
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document.getElementById('data-svg-'+index).value = canvasEdition.toSVG();
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})
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});
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document.addEventListener('keydown', function(event) {
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if(event.target.tagName != "BODY") {
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return;
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}
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if(event.key == 'Delete') {
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canvasEditions.forEach(function(canvasEdition, index) {
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canvasEdition.getActiveObjects().forEach(function(activeObject) {
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canvasEdition.remove(activeObject);
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});
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})
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return;
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}
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if(event.ctrlKey && event.key == 'c') {
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if(!activeCanvas || !activeCanvas.getActiveObject()) {
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return;
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}
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copiedObject = fabric.util.object.clone(activeCanvas.getActiveObject());
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return;
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}
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if(event.ctrlKey && event.key == 'v') {
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copiedObject = fabric.util.object.clone(copiedObject);
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copiedObject.left = activeCanvasPointer.x;
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copiedObject.top = activeCanvasPointer.y;
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activeCanvas.add(copiedObject).renderAll();
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return;
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}
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});
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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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var scale = 1.5;
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var viewport = page.getViewport({scale: scale});
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var pageIndex = page.pageNumber - 1;
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document.getElementById('form_pdf').insertAdjacentHTML('beforeend', '<input name="svg[' + pageIndex + ']" id="data-svg-' + pageIndex + '" type="hidden" value="" />');
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document.getElementById('container-pages').insertAdjacentHTML('beforeend', '<div class="position-relative mt-2 d-inline-block"><canvas id="canvas-pdf-'+pageIndex+'" class="shadow"></canvas><div class="position-absolute top-0 start-0"><canvas id="canvas-edition-'+pageIndex+'"></canvas></div></div><div></div>');
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var canvasPDF = document.getElementById('canvas-pdf-' + pageIndex);
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var canvasEditionHTML = document.getElementById('canvas-edition-' + pageIndex);
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// Prepare canvas using PDF page dimensions
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var context = canvasPDF.getContext('2d');
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canvasPDF.height = viewport.height;
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canvasPDF.width = viewport.width;
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canvasEditionHTML.height = viewport.height;
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canvasEditionHTML.width = viewport.width;
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var canvasEdition = new fabric.Canvas('canvas-edition-' + pageIndex, {'selection' : false});
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canvasEdition.on('mouse:move', function(event) {
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activeCanvas = this;
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activeCanvasPointer = event.pointer;
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});
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canvasEdition.on('mouse:dblclick', function(event) {
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x = event.pointer.x
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y = event.pointer.y
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if(document.querySelector('input[name="svg_2_add"]:checked')) {
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fabric.loadSVGFromURL(document.querySelector('input[name="svg_2_add"]:checked').value, function(objects, options) {
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var svg = fabric.util.groupSVGElements(objects, options);
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svg.scaleToHeight(100);
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svg.top = y - (svg.getScaledHeight() / 2);
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svg.left = x - (svg.getScaledWidth() / 2);
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canvasEdition.add(svg).renderAll();
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});
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}
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/*if(document.getElementById('radio_signature_text_classic').checked) {
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var textSignature = new fabric.Text(document.getElementById('input-signature-text-classic').value, { fontSize: 16 });
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textSignature.top = y - (textSignature.getScaledHeight() / 2);
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textSignature.left = x - (textSignature.getScaledWidth() / 2);
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canvasEdition.add(textSignature).renderAll();
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}*/
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});
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canvasEditions.push(canvasEdition);
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var renderContext = {
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canvasContext: context,
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viewport: viewport,
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enhanceTextSelection: true
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};
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var renderTask = page.render(renderContext);
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renderTask.promise.then(function () {
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});
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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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}); |