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24eme-signaturepdf/public/js/signature.js
2025-12-03 11:10:42 +01:00

1397 lines
49 KiB
JavaScript

let canvasEditions = [];
let fontCaveat = null;
let copiedObject = null;
let forceAddLock = true;
let addLock = true;
let activeCanvas = null;
let activeCanvasPointer = null;
let pdfRenderTasks = [];
let pdfPages = [];
let svgCollections = [];
let resizeTimeout;
let pdfHistory = {};
let currentScale = 1.5;
let windowWidth = window.innerWidth;
let menu = null;
let menuOffcanvas = null;
let currentCursor = null;
let signaturePad = null;
const penColorPicker = document.getElementById('penColorPicker');
let penColor = localStorage.getItem('penColor') ?? '#000000'
let nblayers = null;
let hasModifications = false;
let currentTextScale = 1;
const defaultScale = 1.5;
async function loadPDF(pdfBlob) {
let filename = pdfBlob.name;
let url = await URL.createObjectURL(pdfBlob);
document.title = filename + ' - ' + document.title;
let text_document_name = document.querySelector('#text_document_name');
text_document_name.querySelector('span').innerText = filename;
text_document_name.setAttribute('title', filename);
let dataTransfer = new DataTransfer();
dataTransfer.items.add(new File([pdfBlob], filename, {
type: 'application/pdf'
}));
if(document.getElementById('input_pdf')) {
document.getElementById('input_pdf').files = dataTransfer.files;
}
if(document.getElementById('input_pdf_share')) {
document.getElementById('input_pdf_share').files = dataTransfer.files;
}
let loadingTask = pdfjsLib.getDocument(url);
loadingTask.promise.then(function(pdf) {
if(pdf.numPages > maxPage) {
alert("Le PDF de doit pas dépasser "+maxPage+" pages");
document.location = "/";
return;
}
for(let pageNumber = 1; pageNumber <= pdf.numPages; pageNumber++ ) {
pdf.getPage(pageNumber).then(function(page) {
let scale = 1.5;
let viewport = page.getViewport({scale: scale});
if(viewport.width > document.getElementById('container-pages').clientWidth - 40) {
viewport = page.getViewport({scale: 1});
scale = (document.getElementById('container-pages').clientWidth - 40) / viewport.width;
viewport = page.getViewport({ scale: scale });
}
currentScale = scale;
let pageIndex = page.pageNumber - 1;
document.getElementById('form_block').insertAdjacentHTML('beforeend', '<input name="svg[' + pageIndex + ']" id="data-svg-' + pageIndex + '" type="hidden" value="" />');
document.getElementById('container-pages').insertAdjacentHTML('beforeend', '<div class="position-relative mt-1 ms-1 me-1 d-inline-block" id="canvas-container-' + pageIndex +'"><canvas id="canvas-pdf-'+pageIndex+'" class="shadow-sm canvas-pdf"></canvas><div class="position-absolute top-0 start-0"><canvas id="canvas-edition-'+pageIndex+'"></canvas></div></div>');
let canvasPDF = document.getElementById('canvas-pdf-' + pageIndex);
let canvasEditionHTML = document.getElementById('canvas-edition-' + pageIndex);
// Prepare canvas using PDF page dimensions
let context = canvasPDF.getContext('2d');
canvasPDF.height = viewport.height;
canvasPDF.width = viewport.width;
canvasEditionHTML.height = canvasPDF.height;
canvasEditionHTML.width = canvasPDF.width;
let renderContext = {
canvasContext: context,
viewport: viewport,
enhanceTextSelection: true
};
let renderTask = page.render(renderContext);
pdfRenderTasks.push(renderTask);
pdfPages.push(page);
let canvasEdition = new fabric.Canvas('canvas-edition-' + pageIndex, {
selection : false,
allowTouchScrolling: true
});
document.getElementById('canvas-container-' + pageIndex).addEventListener('drop', function(event) {
var input_selected = document.querySelector('input[name="svg_2_add"]:checked');
if(!input_selected) {
return;
}
createAndAddSvgInCanvas(canvasEdition, input_selected.value, event.layerX, event.layerY, input_selected.dataset.height);
input_selected.checked = false;
input_selected.dispatchEvent(new Event("change"));
});
canvasEdition.on('mouse:move', function(event) {
activeCanvas = this;
activeCanvasPointer = event.pointer;
});
canvasEdition.on('mouse:down:before', function(event) {
currentCursor = this.defaultCursor;
});
canvasEdition.on('mouse:down', function(event) {
if(event.target) {
this.defaultCursor = 'default';
return;
}
var input_selected = document.querySelector('input[name="svg_2_add"]:checked');
if(currentCursor == 'default' && input_selected) {
this.defaultCursor = 'copy';
}
if(currentCursor != 'copy') {
return;
}
if(!input_selected) {
return;
}
createAndAddSvgInCanvas(this, input_selected.value, event.pointer.x, event.pointer.y, input_selected.dataset.height);
if(addLock) {
return;
}
input_selected.checked = false;
input_selected.dispatchEvent(new Event("change"));
});
canvasEdition.on('object:scaling', function(event) {
if (event.target instanceof fabric.Line) {
return;
}
if (event.target instanceof fabric.Rect) {
return;
}
if(event.transform.action == "scaleX") {
event.target.scaleY = event.target.scaleX;
}
if(event.transform.action == "scaleY") {
event.target.scaleX = event.target.scaleY;
}
});
canvasEdition.on('object:modified', function(event) {
if (event.target instanceof fabric.IText) {
currentTextScale = event.target.scaleX;
return;
}
var item = getSvgItem(event.target.svgOrigin);
if(!item) {
return;
}
item.scale = event.target.width * event.target.scaleX / event.target.canvas.width;
storeCollections();
});
canvasEdition.on("text:changed", function(event) {
if (!event.target instanceof fabric.IText) {
return;
}
const textLinesMaxWidth = event.target.textLines.reduce((max, _, i) => Math.max(max, event.target.getLineWidth(i)), 0);
event.target.set({width: textLinesMaxWidth});
});
canvasEdition.on("selection:created", function(event) {
if (event.selected.length > 1 || event.selected.length === 0) {
return;
}
toolBox.init(event.selected[0])
});
canvasEdition.on("selection:updated", function(event) {
toolBox.reset()
if (event.selected.length > 1 || event.selected.length === 0) {
return;
}
toolBox.init(event.selected[0])
});
canvasEdition.on("object:modified", function(event) {
toolBox.init(event.target)
});
canvasEdition.on("object:moving", function(event) {
toolBox.reset()
});
canvasEdition.on("selection:cleared", function(event) {
toolBox.reset()
});
canvasEditions.push(canvasEdition);
});
}
}, function (reason) {
console.error(reason);
});
};
async function reloadPDF(url) {
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
});
});
}
});
}
function responsiveDisplay() {
if(is_mobile()) {
document.getElementById('page-signature').classList.remove('decalage-pdf-div');
menu.classList.remove('show');
menuOffcanvas.hide();
document.getElementById('container-pages').classList.remove('vh-100');
} else {
menuOffcanvas.show();
document.getElementById('page-signature').classList.add('decalage-pdf-div');
document.getElementById('container-pages').classList.add('vh-100');
}
menu.classList.remove('d-md-block');
menu.classList.remove('d-none');
};
function storeCollections() {
localStorage.setItem('svgCollections', JSON.stringify(svgCollections));
};
function getSvgItem(svg) {
for (index in svgCollections) {
let svgItem = svgCollections[index];
if(svgItem.svg == svg) {
return svgItem;
}
}
return null;
};
function svgClick(label, event) {
if(event.detail == 1) {
label.dataset.lock = parseInt(addLock*1);
}
if(event.detail > 1){
stateAddLock(parseInt(label.dataset.lock*1) != 1);
}
if(event.detail > 1) {
return;
}
if(!document.getElementById(label.htmlFor)) {
return;
}
if(!document.getElementById(label.htmlFor).checked) {
return;
}
document.getElementById(label.htmlFor).checked = false;
document.getElementById(label.htmlFor).dispatchEvent(new Event("change"));
event.preventDefault();
};
function svgDblClick(label, event) {
if(parseInt(label.dataset.lock*1) == 1) {
return;
}
stateAddLock(true);
};
function svgDragStart(label, event) {
document.getElementById(label.htmlFor).checked = true;
document.getElementById(label.htmlFor).dispatchEvent(new Event("change"));
};
function svgChange(input, event) {
if(input.checked) {
document.getElementById('btn_svn_select').classList.add('d-none');
document.getElementById('svg_object_actions').classList.add('d-none');
document.getElementById('svg_selected_container').classList.remove('d-none');
if(input.value.match(/^data:/)) {
document.getElementById('svg_selected').src = input.value;
} else {
document.getElementById('svg_selected').src = input.dataset.svg;
}
} else {
document.getElementById('btn_svn_select').classList.remove('d-none');
document.getElementById('svg_object_actions').classList.add('d-none');
document.getElementById('svg_selected_container').classList.add('d-none');
document.getElementById('svg_selected').src = "";
}
stateAddLock(false);
let input_selected = document.querySelector('input[name="svg_2_add"]:checked');
if(input_selected && !input_selected.value.match(/^data:/) && input_selected.value != "text" && input_selected.value != "strikethrough" && input_selected.value != "rectangle") {
input_selected = null;
}
document.querySelectorAll('.btn-svg').forEach(function(item) {
if(input_selected && item.htmlFor == input_selected.id) {
item.style.setProperty('cursor', 'copy');
} else {
item.style.removeProperty('cursor');
}
});
canvasEditions.forEach(function(canvasEdition, index) {
if(input_selected) {
canvasEdition.defaultCursor = 'copy';
} else {
canvasEdition.defaultCursor = 'default';
}
})
if(is_mobile()) {
menuOffcanvas.hide();
}
};
function getHtmlSvg(svg, i) {
let inputRadio = document.createElement('input');
inputRadio.type = "radio";
inputRadio.classList.add("btn-check");
inputRadio.id="radio_svg_"+i;
inputRadio.name = "svg_2_add";
inputRadio.autocomplete = "off";
inputRadio.value = svg.svg;
inputRadio.addEventListener('change', function() {
svgChange(this, event);
});
let svgButton = document.createElement('label');
svgButton.id = "label_svg_"+i;
svgButton.classList.add('position-relative');
svgButton.classList.add('btn');
svgButton.classList.add('btn-svg');
svgButton.classList.add('btn-outline-secondary');
svgButton.htmlFor = "radio_svg_"+i;
if(svg.type == 'signature') {
svgButton.innerHTML += '<i class="bi bi-vector-pen text-black align-middle float-start"></i>';
}
if(svg.type == 'initials') {
svgButton.innerHTML += '<i class="bi bi-type text-black align-middle float-start"></i>';
}
if(svg.type == 'rubber_stamber') {
svgButton.innerHTML += '<i class="bi bi-card-text text-black align-middle float-start"></i>';
}
if(svg.type) {
document.querySelector('.btn-add-svg-type[data-type="'+svg.type+'"]').classList.add('d-none');
}
svgButton.innerHTML += '<a title="Supprimer" data-index="'+i+'" class="btn-svg-list-suppression opacity-50 link-dark position-absolute"><i class="bi bi-trash"></i></a>';
svgButton.draggable = true;
svgButton.addEventListener('dragstart', function(event) {
svgDragStart(this, event);
});
svgButton.addEventListener('click', function(event) {
svgClick(this, event);
});
svgButton.addEventListener('dblclick', function(event) {
svgDblClick(this, event);
});
svgButton.addEventListener('mouseout', function(event) {
this.style.removeProperty('cursor');
})
let svgImg = document.createElement('img');
svgImg.src = svg.svg;
svgImg.draggable = false;
svgImg.style = "max-width: 180px;max-height: 70px;";
svgButton.appendChild(svgImg);
let svgContainer = document.createElement('div');
svgContainer.classList.add('d-grid');
svgContainer.classList.add('gap-2');
svgContainer.appendChild(inputRadio);
svgContainer.appendChild(svgButton);
return svgContainer;
};
function stateAddLock(state) {
if(forceAddLock) {
state = true;
}
let checkbox = document.getElementById('add-lock-checkbox');
let input_selected = document.querySelector('input[name="svg_2_add"]:checked');
addLock = state;
if(!input_selected) {
addLock = false;
checkbox.disabled = true;
} else {
checkbox.disabled = false;
}
if(addLock && input_selected) {
let svgButton = document.querySelector('.btn-svg[for="'+input_selected.id+'"]');
checkbox.checked = true;
return;
}
checkbox.checked = false;
};
function displaysSVG() {
document.getElementById('svg_list').innerHTML = "";
document.getElementById('svg_list_signature').innerHTML = "";
document.getElementById('svg_list_initials').innerHTML = "";
document.getElementById('svg_list_rubber_stamber').innerHTML = "";
document.querySelectorAll('.btn-add-svg-type').forEach(function(item) {
item.classList.remove('d-none');
});
svgCollections.forEach((svg, i) => {
let svgHtmlChild = getHtmlSvg(svg, i);
if(svg.type) {
document.getElementById('svg_list_'+svg.type).appendChild(svgHtmlChild);
return;
}
document.getElementById('svg_list').appendChild(svgHtmlChild);
});
if(svgCollections.length > 0) {
document.getElementById('btn-add-svg').classList.add('btn-light');
document.getElementById('btn-add-svg').classList.remove('btn-primary');
}
if(document.getElementById('btn-add-svg').classList.contains('btn-primary')) {
document.getElementById('btn-add-svg').focus();
}
document.querySelectorAll('.btn-svg-list-suppression').forEach(function(item) {
item.addEventListener('click', function() {
svgCollections.splice(this.dataset.index, 1);
displaysSVG();
storeCollections();
});
});
};
function uploadSVG(formData) {
document.getElementById('btn_modal_ajouter').setAttribute('disabled', 'disabled');
document.getElementById('btn_modal_ajouter_spinner').classList.remove('d-none');
document.getElementById('btn_modal_ajouter_check').classList.add('d-none');
let xhr = new XMLHttpRequest();
xhr.open( 'POST', document.getElementById('form-image-upload').action, true );
xhr.onreadystatechange = function () {
var svgImage = svgToDataUrl(trimSvgWhitespace(this.responseText));
document.getElementById('img-upload').src = svgImage;
document.getElementById('img-upload').classList.remove("d-none");
document.getElementById('btn_modal_ajouter').removeAttribute('disabled');
document.getElementById('btn_modal_ajouter_spinner').classList.add('d-none');
document.getElementById('btn_modal_ajouter_check').classList.remove('d-none');
document.getElementById('btn_modal_ajouter').focus();
};
xhr.send( formData );
};
function deleteActiveObject() {
canvasEditions.forEach(function(canvasEdition, index) {
canvasEdition.getActiveObjects().forEach(function(activeObject) {
canvasEdition.remove(activeObject);
if(activeObject.type == "rect") {
updateFlatten();
}
});
})
};
function addObjectInCanvas(canvas, item) {
item.on('selected', function(event) {
if(!is_mobile()) {
return;
}
document.getElementById('svg_object_actions').classList.remove('d-none');
document.getElementById('svg_selected_container').classList.add('d-none');
document.getElementById('btn_svn_select').classList.add('d-none');
});
item.on('deselected', function(event) {
if(!is_mobile()) {
return;
}
if(document.querySelector('input[name="svg_2_add"]:checked')) {
document.getElementById('svg_selected_container').classList.remove('d-none');
} else {
document.getElementById('btn_svn_select').classList.remove('d-none');
}
document.getElementById('svg_object_actions').classList.add('d-none');
});
return canvas.add(item);
};
function updateWatermark() {
if (document.querySelector('input[name=watermark]') === null) {
return
}
const text = new fabric.Text(document.querySelector('input[name=watermark]').value, {angle: -40, fill: document.querySelector("#watermark-color-picker").value, fontSize: 27 * currentScale})
text.scale = 0.
const overlay = new fabric.Rect({
fill: new fabric.Pattern({
source: text.toCanvasElement(),
}),
})
canvasEditions.forEach(function (canvas) {
overlay.height = canvas.height
overlay.width = canvas.width
canvas.objectCaching = false
canvas.setOverlayImage(overlay, canvas.renderAll.bind(canvas), {
objectCaching: false
})
})
}
function updateFlatten() {
let flatten = Boolean(document.querySelector('input[name=watermark]').value);
flatten = flatten || canvasEditions.some(function (canvas) {
return canvas.getObjects().some(function (object) {
return object.type === "rect"
})
})
document.querySelector('input[name=flatten]').checked = flatten;
if(document.getElementById('save_flatten_indicator')) {
document.getElementById('save_flatten_indicator').classList.toggle('invisible', !flatten);
}
}
function setIsChanged(changed) {
hasModifications = changed
if(document.querySelector('#alert-signature-help')) {
document.querySelector('#alert-signature-help').classList.toggle('d-none', changed);
}
if(document.getElementById('save')) {
document.getElementById('save').toggleAttribute('disabled', !changed);
}
if(document.getElementById('save_mobile')) {
document.getElementById('save_mobile').toggleAttribute('disabled', !changed);
}
if(document.getElementById('btn_download')) {
document.getElementById('btn_download').classList.toggle('btn-outline-dark', !changed);
document.getElementById('btn_download').classList.toggle('btn-outline-secondary', changed);
}
if(document.getElementById('btn_share')) {
document.getElementById('btn_share').classList.toggle('btn-outline-dark', !changed);
document.getElementById('btn_share').classList.toggle('btn-outline-secondary', changed);
}
}
function createAndAddSvgInCanvas(canvas, item, x, y, height = null) {
setIsChanged(true)
if(!height) {
height = 100;
}
if(item == 'text') {
let textbox = new fabric.Textbox(trad['Text to modify'], {
left: x,
top: y - 20,
fontSize: 20,
direction: direction,
fontFamily: 'Monospace',
fill: penColor
});
fabric.Textbox.prototype.customEnterAction = function (e) {
if (e.ctrlKey) {
this.insertChars('\n', undefined, this.selectionStart)
this.exitEditing();
this.enterEditing();
this.moveCursorRight(e);
return
}
this.exitEditing()
}
addObjectInCanvas(canvas, textbox).setActiveObject(textbox);
textbox.keysMap[13] = "customEnterAction";
textbox.lockScalingFlip = true;
textbox.scaleX = currentTextScale;
textbox.scaleY = currentTextScale;
textbox.enterEditing();
textbox.selectAll();
return;
}
if(item == 'strikethrough') {
let line = new fabric.Line([x, y, x + 250, y], {
fill: penColor,
stroke: penColor,
lockScalingFlip: true,
strokeWidth: 2,
padding: 10,
});
line.setControlsVisibility({ bl: false, br: false, mt: false, mb: false, tl: false, tr: false})
addObjectInCanvas(canvas, line).setActiveObject(line);
return;
}
if(item == 'rectangle') {
let rect = new fabric.Rect({
left: x,
top: y,
width: 200,
height: 100,
fill: '#000',
lockScalingFlip: true
});
rect.setControlsVisibility({ tl: false, tr: false, bl: false, br: false,})
addObjectInCanvas(canvas, rect).setActiveObject(rect);
updateFlatten();
return;
}
fabric.loadSVGFromURL(item, function(objects, options) {
let svg = fabric.util.groupSVGElements(objects, options);
svg.svgOrigin = item;
svg.lockScalingFlip = true;
svg.scaleToHeight(height);
if(svg.getScaledWidth() > 200) {
svg.scaleToWidth(200);
}
let svgItem = getSvgItem(item);
if(svgItem && svgItem.scale) {
svg.scaleToWidth(canvas.width * svgItem.scale);
}
svg.top = y - (svg.getScaledHeight() / 2);
svg.left = x - (svg.getScaledWidth() / 2);
svg.fill = penColor
addObjectInCanvas(canvas, svg);
});
};
function autoZoom() {
clearTimeout(resizeTimeout);
resizeTimeout = setTimeout(resizePDF, 100);
};
function zoomChange(inOrOut) {
if(resizeTimeout) {
return;
}
let deltaScale = 0.2 * inOrOut;
if(currentScale + deltaScale < 0) {
return
}
if(currentScale + deltaScale > 3) {
return
}
clearTimeout(resizeTimeout);
currentScale += deltaScale;
resizeTimeout = setTimeout(resizePDF(currentScale), 50);
};
function resizePDF(scale = 'auto') {
renderComplete = true;
pdfRenderTasks.forEach(function(renderTask) {
if(!renderTask) {
renderComplete = false;
}
});
if(!renderComplete) {
clearTimeout(resizeTimeout);
resizeTimeout = setTimeout(function(){ resizePDF(scale) }, 50);
return;
}
pdfPages.forEach(function(page, pageIndex) {
let renderTask = pdfRenderTasks[pageIndex];
if(scale == 'auto' && page.getViewport({scale: 1.5}).width > document.getElementById('container-pages').clientWidth - 40) {
scale = (document.getElementById('container-pages').clientWidth - 40) / page.getViewport({scale: 1}).width;
}
if(scale == 'auto') {
scale = 1.5;
}
let viewport = page.getViewport({scale: scale});
currentScale = scale;
let canvasPDF = document.getElementById('canvas-pdf-' + pageIndex);
let context = canvasPDF.getContext('2d');
canvasPDF.height = viewport.height;
canvasPDF.width = viewport.width;
canvasEdition = canvasEditions[pageIndex];
let scaleMultiplier = canvasPDF.width / canvasEdition.width;
let objects = canvasEdition.getObjects();
for (let i in objects) {
objects[i].scaleX = objects[i].scaleX * scaleMultiplier;
objects[i].scaleY = objects[i].scaleY * scaleMultiplier;
objects[i].left = objects[i].left * scaleMultiplier;
objects[i].top = objects[i].top * scaleMultiplier;
objects[i].setCoords();
}
canvasEdition.setWidth(canvasEdition.getWidth() * scaleMultiplier);
canvasEdition.setHeight(canvasEdition.getHeight() * scaleMultiplier);
canvasEdition.renderAll();
canvasEdition.calcOffset();
let renderContext = {
canvasContext: context,
viewport: viewport,
enhanceTextSelection: true
};
renderTask.cancel();
pdfRenderTasks[pageIndex] = null;
renderTask = page.render(renderContext);
renderTask.promise.then(function () {
pdfRenderTasks[pageIndex] = renderTask;
clearTimeout(resizeTimeout);
resizeTimeout = null;
});
});
updateWatermark();
};
function createEventsListener() {
document.getElementById('add-lock-checkbox').addEventListener('change', function() {
stateAddLock(this.checked);
});
document.querySelectorAll('.btn-add-svg-type').forEach(function(item) {
item.addEventListener('click', function(event) {
document.getElementById('input-svg-type').value = this.dataset.type;
if(this.dataset.modalnav) {
bootstrap.Tab.getOrCreateInstance(document.querySelector('#modalAddSvg #nav-tab '+this.dataset.modalnav)).show();
}
});
});
document.querySelectorAll('label.btn-svg').forEach(function(item) {
item.addEventListener('dragstart', function(event) {
svgDragStart(this, event);
});
item.addEventListener('click', function(event) {
svgClick(this, event);
});
item.addEventListener('dblclick', function(event) {
svgDblClick(this, event);
});
});
document.querySelectorAll('input[name="svg_2_add"]').forEach(function (item) {
item.addEventListener('change', function(event) {
svgChange(this, event);
});
});
document.getElementById('btn_modal_ajouter').addEventListener('click', function() {
let svgItem = {};
if(document.getElementById('input-svg-type').value) {
svgItem.type = document.getElementById('input-svg-type').value;
}
if(document.getElementById('nav-draw-tab').classList.contains('active')) {
svgItem.svg = document.getElementById('img-upload').src;
}
if(document.getElementById('nav-type-tab').classList.contains('active')) {
let fontPath = fontCaveat.getPath(document.getElementById('input-text-signature').value, 0, 0, 42);
let fabricPath = new fabric.Path(fontPath.toPathData());
fabricPath.top = 0;
fabricPath.left = 0;
fabricPath.height = fabricPath.getScaledHeight();
let textCanvas = document.createElement('canvas');
textCanvas.width = fabricPath.getScaledWidth();
textCanvas.height = fabricPath.getScaledHeight();
let textCanvasFabric = new fabric.Canvas(textCanvas);
textCanvasFabric.add(fabricPath).renderAll();
svgItem.svg = svgToDataUrl(textCanvasFabric.toSVG());
}
if(document.getElementById('nav-import-tab').classList.contains('active')) {
svgItem.svg = document.getElementById('img-upload').src;
}
svgCollections.push(svgItem);
displaysSVG();
localStorage.setItem('svgCollections', JSON.stringify(svgCollections));
let svg_list_id = "svg_list";
if(svgItem.type) {
svg_list_id = svg_list_id + "_" + svgItem.type;
}
document.querySelector('#'+svg_list_id+' label:last-child').click();
if(document.querySelector('#save').disabled && document.querySelector('#alert-signature-help.auto-open') && !is_mobile()) {
document.querySelector('#alert-signature-help').classList.remove('d-none');
}
});
document.getElementById('signature-pad-reset').addEventListener('click', function(event) {
signaturePad.clear();
event.preventDefault();
})
document.querySelectorAll('#modalAddSvg .nav-link').forEach(function(item) { item.addEventListener('shown.bs.tab', function (event) {
let firstInput = document.querySelector(event.target.dataset.bsTarget).querySelector('input');
if(firstInput) {
firstInput.focus();
}
})});
document.getElementById('modalAddSvg').addEventListener('shown.bs.modal', function (event) {
document.querySelector('#modalAddSvg #nav-tab button:first-child').focus();
let tab = document.querySelector('#modalAddSvg .tab-pane.active');
if(tab.querySelector('input')) {
tab.querySelector('input').focus();
}
let input_selected = document.querySelector('input[name="svg_2_add"]:checked');
if(input_selected) {
input_selected.checked = false;
input_selected.dispatchEvent(new Event("change"));
}
})
document.getElementById('modalAddSvg').addEventListener('hidden.bs.modal', function (event) {
signaturePad.clear();
document.getElementById('btn_modal_ajouter').setAttribute('disabled', 'disabled');
document.getElementById('input-svg-type').value = null;
document.getElementById('input-text-signature').value = null;
document.getElementById('input-image-upload').value = null;
document.getElementById('img-upload').src = "";
document.getElementById('img-upload').classList.add("d-none");
bootstrap.Tab.getOrCreateInstance(document.querySelector('#modalAddSvg #nav-tab button:first-child')).show();
})
document.getElementById('input-text-signature').addEventListener('keydown', function(event) {
document.getElementById('btn_modal_ajouter').removeAttribute('disabled');
if(event.key == 'Enter') {
document.getElementById('btn_modal_ajouter').click()
}
})
document.getElementById('input-image-upload').addEventListener('change', function(event) {
let data = new FormData();
data.append('file', document.getElementById('input-image-upload').files[0]);
uploadSVG(data);
event.preventDefault();
});
document.querySelector('.input-watermark-placeholder')?.addEventListener('click', function (e) {
const div = e.target
const input = div.parentNode.querySelector('.input-group')
input.classList.remove('d-none')
div.classList.add('d-none')
input.querySelector('input[type=text]').focus()
})
document.querySelector('input[name=watermark]')?.addEventListener('keyup', debounce(function (e) {
setIsChanged(hasModifications || !!e.target.value)
updateFlatten();
updateWatermark();
}, 750))
document.querySelector('input[name=watermark]')?.addEventListener('change', function (e) {
setIsChanged(hasModifications || !!e.target.value)
updateFlatten();
updateWatermark();
});
document.querySelector('#watermark-color-picker')?.addEventListener('change', function (e) {
document.querySelector('input[name=watermark]').dispatchEvent(new Event("change"));
});
if(document.querySelector('#alert-signature-help')) {
document.getElementById('btn-signature-help').addEventListener('click', function(event) {
document.querySelector('#alert-signature-help').classList.remove('d-none');
event.preventDefault();
});
document.querySelector('#alert-signature-help .btn-close').addEventListener('click', function(event) {
document.querySelector('#alert-signature-help').classList.add('d-none');
event.preventDefault();
});
}
if(document.getElementById('save')) {
document.getElementById('save').addEventListener('click', async function(event) {
if(!pdfHash) {
event.preventDefault()
}
let previousScale = currentScale;
if(currentScale != defaultScale) {
resizePDF(defaultScale)
while(!renderComplete) { }
}
let dataTransfer = new DataTransfer();
canvasEditions.forEach(function(canvasEdition, index) {
dataTransfer.items.add(new File([canvasEdition.toSVG()], index+'.svg', {
type: 'image/svg+xml'
}));
})
document.getElementById('input_svg').files = dataTransfer.files;
if(previousScale != currentScale) {
clearTimeout(resizeTimeout);
resizeTimeout = setTimeout(resizePDF(previousScale), 100);
}
if(!pdfHash) {
startProcessingMode(this)
const formData = new FormData(this.form)
const response = await fetch(this.form.action, {
method: "POST",
body: formData
})
const blob = await response.blob()
await download(blob, formData.get('pdf').name.replace(/\.pdf$/, '_signe.pdf'))
await storeFileInCache(blob, formData.get('pdf').name)
endProcessingMode(this)
}
hasModifications = false;
});
}
if(document.getElementById('save_share')) {
document.getElementById('save_share').addEventListener('click', function(event) {
let dataTransfer = new DataTransfer();
if(!document.getElementById('save').hasAttribute('disabled')) {
canvasEditions.forEach(function(canvasEdition, index) {
dataTransfer.items.add(new File([canvasEdition.toSVG()], index+'.svg', {
type: 'image/svg+xml'
}));
})
}
document.getElementById('input_svg_share').files = dataTransfer.files;
hasModifications = false;
document.getElementById('input_pdf_hash').value = generatePdfHash();
if (document.getElementById('checkbox_encryption').checked) {
storeSymmetricKeyCookie(document.getElementById('input_pdf_hash').value, generateSymmetricKey());
}
});
}
document.getElementById('save_mobile').addEventListener('click', function(event) {
document.getElementById('save').click();
event.preventDefault();
return false;
});
document.getElementById('btn-svg-pdf-delete').addEventListener('click', function(event) {
deleteActiveObject();
});
document.getElementById('btn_svg_selected_close').addEventListener('click', function(event) {
let input_selected = document.querySelector('input[name="svg_2_add"]:checked');
stateAddLock(false);
input_selected.checked = false;
input_selected.dispatchEvent(new Event("change"));
this.blur();
});
document.addEventListener('click', function(event) {
if(event.target.nodeName == "DIV") {
let input_selected = document.querySelector('input[name="svg_2_add"]:checked');
if(!input_selected) {
return;
}
stateAddLock(false);
input_selected.checked = false;
input_selected.dispatchEvent(new Event("change"));
}
});
document.addEventListener('keydown', function(event) {
if(event.key == 'Escape' && (event.target.tagName == "BODY" || event.target.name == "svg_2_add")) {
let input_selected = document.querySelector('input[name="svg_2_add"]:checked');
if(!input_selected) {
return;
}
input_selected.checked = false;
stateAddLock(false);
input_selected.dispatchEvent(new Event("change"));
input_selected.blur();
return;
}
if(event.target.tagName != "BODY") {
return;
}
if(event.key == 'Delete') {
deleteActiveObject();
return;
}
if(event.ctrlKey && event.key == 'c') {
if(!activeCanvas || !activeCanvas.getActiveObject()) {
return;
}
copiedObject = fabric.util.object.clone(activeCanvas.getActiveObject());
return;
}
if(event.ctrlKey && event.key == 'v') {
copiedObject = fabric.util.object.clone(copiedObject);
copiedObject.left = activeCanvasPointer.x;
copiedObject.top = activeCanvasPointer.y;
activeCanvas.add(copiedObject).renderAll();
return;
}
if(event.ctrlKey && (event.key == 'à' || event.key == '0')) {
autoZoom();
event.preventDefault() && event.stopPropagation();
return;
}
if(event.ctrlKey && (event.key == '=' || event.key == '+')) {
zoomChange(1);
event.preventDefault() && event.stopPropagation();
return;
}
if(event.ctrlKey && event.key == '-') {
zoomChange(-1);
event.preventDefault() && event.stopPropagation();
return;
}
});
window.addEventListener('resize', function(event) {
event.preventDefault() && event.stopPropagation();
if(windowWidth == window.innerWidth) {
return;
}
responsiveDisplay();
windowWidth = window.innerWidth;
autoZoom();
});
document.addEventListener('wheel', function(event) {
if(!event.ctrlKey) {
return;
}
event.preventDefault() && event.stopPropagation();
if(event.deltaY > 0) {
zoomChange(-1)
} else {
zoomChange(1)
}
}, { passive: false });
document.getElementById('btn-zoom-decrease').addEventListener('click', function() {
zoomChange(-1)
});
document.getElementById('btn-zoom-increase').addEventListener('click', function() {
zoomChange(1)
});
penColorPicker.addEventListener('input', function (e) {
e.preventDefault()
storePenColor(penColorPicker.value)
})
document.getElementById('color-picker').addEventListener('click', function(event) {
penColorPicker.click();
})
window.addEventListener('beforeunload', function(event) {
if(!hasModifications) {
return;
}
event.preventDefault();
return true;
});
if(pdfHash) {
updateNbLayers();
setInterval(function() {
updateNbLayers();
}, 10000);
}
};
function createSignaturePad() {
signaturePad = new SignaturePad(document.getElementById('signature-pad'), {
penColor: 'rgb(0, 0, 0)',
minWidth: 1,
maxWidth: 2
});
signaturePad.addEventListener('endStroke', debounce(function(){
const file = new File([dataURLtoBlob(signaturePad.toDataURL())], "draw.png", {
type: 'image/png'
});
let data = new FormData();
data.append('file', file);
uploadSVG(data);
}, 500));
};
function modalSharing() {
if(openModal == "shareinformations") {
let modalInformationsEl = document.getElementById('modal-share-informations');
let modalInformations = bootstrap.Modal.getOrCreateInstance(modalInformationsEl);
modalInformations.show();
}
if(openModal == 'signed') {
let modalSignedEl = document.getElementById('modal-signed');
let modalSigned = bootstrap.Modal.getOrCreateInstance(modalSignedEl);
document.querySelector('#modal-signed #text_nomail_notification a').addEventListener('click', function() {
this.href = this.href.replace(/DOCUMENT_NAME/g, document.getElementById('text_document_name').title);
this.href = this.href.replace('DOCUMENT_URL', document.location.href);
});
document.querySelector('#modal-signed #text_nomail_notification a').href = document.getElementById('link_compose_mail').href;
modalSigned.show();
}
}
function runCron() {
const xhr = new XMLHttpRequest();
xhr.open('GET', '/cron');
xhr.send();
}
async function pageUpload() {
document.querySelector('body').classList.remove('bg-light');
document.getElementById('input_pdf_upload').value = '';
document.getElementById('page-upload').classList.remove('d-none');
document.getElementById('page-signature').classList.add('d-none');
document.getElementById('input_pdf_upload').focus();
document.getElementById('input_pdf_upload').addEventListener('change', async function(event) {
if(await canUseCache()) {
const file = document.getElementById('input_pdf_upload').files[0]
storeFileInCache(file, file.name);
//history.pushState({}, '', `${REVERSE_PROXY_URL ? '/': ''}${REVERSE_PROXY_URL}/signature#${file.name}`);
history.pushState({}, '', `${REVERSE_PROXY_URL}/signature#${encodeURIComponent(file.name)}`);
}
pageSignature(null);
});
}
function updateNbLayers() {
const xhr = new XMLHttpRequest();
xhr.open('GET', '/signature/'+pdfHash+'/nblayers', true);
xhr.onload = function() {
if (xhr.status == 200) {
let newNblayers = xhr.response;
if(nblayers !== null && nblayers != newNblayers) {
console.log('/signature/'+pdfHash+'/pdf');
reloadPDF('/signature/'+pdfHash+'/pdf');
}
nblayers = newNblayers;
document.querySelectorAll('.nblayers').forEach(function(item) {
item.innerHTML = nblayers;
});
document.querySelector('#nblayers_text').classList.remove('d-none');
if(!nblayers) {
document.querySelector('#nblayers_text').classList.add('d-none');
}
}
};
xhr.send();
};
async function pageSignature(url) {
document.querySelector('body').classList.add('bg-light');
modalSharing();
document.getElementById('page-upload').classList.add('d-none');
document.getElementById('page-signature').classList.remove('d-none');
fabric.Textbox.prototype._wordJoiners = /[]/;
menu = document.getElementById('sidebarTools');
menuOffcanvas = new bootstrap.Offcanvas(menu);
forceAddLock = !is_mobile();
addLock = forceAddLock;
if(localStorage.getItem('svgCollections')) {
svgCollections = JSON.parse(localStorage.getItem('svgCollections'));
}
if(svgCollections.length == 0 && document.querySelector('#alert-signature-help')) {
document.querySelector('#alert-signature-help').classList.add('auto-open');
}
opentype.load(url_font, function(err, font) {
fontCaveat = font;
});
if(url && url.match(/^cache:\/\//)) {
await loadFileFromCache(url.replace(/^cache:\/\//, ''));
} else if (url) {
await loadFileFromUrl(url);
}
if(!document.getElementById('input_pdf_upload').files.length) {
alert("Chargement du PDF impossible");
document.location = '/signature';
return;
}
if(document.getElementById('input_pdf_upload').files[0].size > maxSize) {
alert("Le PDF ne doit pas dépasser " + convertOctet2MegoOctet(maxSize) + " Mo");
document.getElementById('input_pdf_upload').value = "";
return;
}
storePenColor(penColor)
createSignaturePad();
responsiveDisplay();
displaysSVG();
stateAddLock();
createEventsListener();
loadPDF(document.getElementById('input_pdf_upload').files[0]);
};
document.addEventListener('DOMContentLoaded', function () {
if(sharingMode) {
setTimeout(function() { runCron() }, 2000);
}
if(pdfHash) {
if (window.location.hash && window.location.hash.match(/^\#/)) {
storeSymmetricKeyCookie(pdfHash, window.location.hash.replace(/^#/, ''));
} else if (getSymmetricKey(pdfHash)) {
window.location.hash = getSymmetricKey(pdfHash);
}
pageSignature('/signature/'+pdfHash+'/pdf');
} else if(window.location.hash && window.location.hash.match(/^\#http/)) {
pageSignature(window.location.hash.replace(/^\#/, ''));
} else if(window.location.hash) {
pageSignature('cache:///pdf/'+window.location.hash.replace(/^\#/, ''));
} else {
pageUpload();
}
window.addEventListener('hashchange', function() {
window.location.reload();
})
});
function storePenColor(color) {
penColor = color
penColorPicker.value = color
localStorage.setItem('penColor', penColor)
document.getElementById('color-picker').style.backgroundColor = penColor;
if(penColor != "#000000") {
document.getElementById('color-picker').style.opacity = 1;
} else {
document.getElementById('color-picker').style.opacity = 0.25;
}
}
const toolBox = (function () {
let _elSelected
const _elToolbox = document.createElement('div')
_elToolbox.id = 'toolbox'
_elToolbox.classList.add('position-absolute', 'border', 'p-1', 'bg-body-secondary', 'shadow-sm', 'ms-3', 'mt-3', 'd-none', 'd-md-block', 'user-select-none')
_elToolbox.style['z-index'] = 1030
_elToolbox.style.width = 'max-content'
const _elToolboxElements = document.querySelector("#toolbox-elements-template").content.cloneNode(true)
_elToolbox.appendChild(_elToolboxElements)
_elToolbox.addEventListener('click', function (e) {
e.preventDefault()
target = e.target
el = target.closest("[data-action]")
if (el) {
switch (el.dataset.action) {
case "changeColor":
_changeColor(); break;
case "delete":
_delete(); break;
case "copy":
_copy(); break;
case "duplicate":
_duplicate(); break;
}
}
})
function _changeColor() {
const _colorpicker = document.createElement('input')
_colorpicker.setAttribute('type', 'color')
_colorpicker.value = penColor
_colorpicker.addEventListener('input', function (e) {
_elSelected.set({ fill: e.target.value })
_elSelected.canvas.requestRenderAll()
if(_elSelected.type != "rect") {
storePenColor(e.target.value)
}
})
_colorpicker.click()
_colorpicker.remove()
}
function _copy() {
_elSelected.clone(function (clonedItem) {
clonedItem.top -= 20;
clonedItem.left += 20;
addObjectInCanvas(_elSelected.canvas, clonedItem).setActiveObject(clonedItem)
})
}
function _duplicate() {
canvasEditions.forEach(function (canvas) {
if (_elSelected.canvas === canvas) {
return
}
_elSelected.clone(function (clonedItem) {
addObjectInCanvas(canvas, clonedItem)
})
})
}
function _delete() {
deleteActiveObject()
reset()
}
function init(el) {
if (_elToolbox) {
reset()
}
_elSelected = el
const container = document.getElementById('container-pages')
container.appendChild(_elToolbox)
const xCoords = _elSelected.getCoords().map((c) => c.x)
const yCoords = _elSelected.getCoords().map((c) => c.y)
_elToolbox.style.left = (
Math.min(...xCoords) // on sélectionne le coin le plus à gauche
+ _elSelected.canvas._offset.left // décalage du canvas dans le viewport
+ (
Math.max(...xCoords) // on sélectionne le coin le plus à droite
- Math.min(...xCoords) // on sélectionne le coin le plus à gauche
) / 2 // pour calculer la largeur et avoir le centre
- _elToolbox.offsetWidth / 2 // centre de la toolbox
- +window.getComputedStyle(_elToolbox).getPropertyValue("margin-left").replace('px', '')
) + 'px'
_elToolbox.style.top = (
Math.max(...yCoords) // on sélectionne le coin le plus bas
+ _elSelected.canvas._offset.top // hauteur du canvas dans le viewport
+ container.scrollTop // haut du container
) + 'px'
}
function reset() {
_elSelected = null
_elToolbox.remove()
}
return {
init: init,
reset: reset
}
})()