2023-04-18 04:08:38 +02:00
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<!DOCTYPE html>
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<html th:lang="${#locale.toString()}" th:lang-direction="#{language.direction}" xmlns:th="http://www.thymeleaf.org">
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2023-04-21 14:13:35 +02:00
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<th:block th:insert="~{fragments/common :: head(title=#{multiTool.title})}"></th:block>
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2023-04-18 04:08:38 +02:00
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<body>
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<div id="page-container">
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<div id="content-wrap">
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<div th:insert="~{fragments/navbar.html :: navbar}"></div>
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<br> <br>
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<div class="container">
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<div class="row justify-content-center">
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<div class="col-md-6" style="text-align: center">
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2023-04-21 14:13:35 +02:00
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<h2 th:text="#{multiTool.header}"></h2>
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2023-04-18 04:08:38 +02:00
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<div id="global-buttons-container">
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<button class="btn btn-primary" onclick="addPdfs()">
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<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-file-earmark-plus" viewBox="0 0 16 16">
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<path d="M8 6.5a.5.5 0 0 1 .5.5v1.5H10a.5.5 0 0 1 0 1H8.5V11a.5.5 0 0 1-1 0V9.5H6a.5.5 0 0 1 0-1h1.5V7a.5.5 0 0 1 .5-.5z"/>
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<path d="M14 4.5V14a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V2a2 2 0 0 1 2-2h5.5L14 4.5zm-3 0A1.5 1.5 0 0 1 9.5 3V1H4a1 1 0 0 0-1 1v12a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1V4.5h-2z"/>
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</svg>
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</button>
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<button class="btn btn-secondary" onclick="rotateAll(-90)">
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<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-counterclockwise" viewBox="0 0 16 16">
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<path fill-rule="evenodd" d="M8 3a5 5 0 1 1-4.546 2.914.5.5 0 0 0-.908-.417A6 6 0 1 0 8 2v1z" />
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<path d="M8 4.466V.534a.25.25 0 0 0-.41-.192L5.23 2.308a.25.25 0 0 0 0 .384l2.36 1.966A.25.25 0 0 0 8 4.466z" />
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</svg>
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</button>
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<button class="btn btn-secondary" onclick="rotateAll(90)">
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<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-clockwise" viewBox="0 0 16 16">
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<path fill-rule="evenodd" d="M8 3a5 5 0 1 0 4.546 2.914.5.5 0 0 1 .908-.417A6 6 0 1 1 8 2v1z" />
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<path d="M8 4.466V.534a.25.25 0 0 1 .41-.192l2.36 1.966c.12.1.12.284 0 .384L8.41 4.658A.25.25 0 0 1 8 4.466z" />
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</svg>
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</button>
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<button id="export-button" class="btn btn-primary" onclick="exportPdf()">
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<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-download" viewBox="0 0 16 16">
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<path d="M.5 9.9a.5.5 0 0 1 .5.5v2.5a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1v-2.5a.5.5 0 0 1 1 0v2.5a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2v-2.5a.5.5 0 0 1 .5-.5z"/>
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<path d="M7.646 11.854a.5.5 0 0 0 .708 0l3-3a.5.5 0 0 0-.708-.708L8.5 10.293V1.5a.5.5 0 0 0-1 0v8.793L5.354 8.146a.5.5 0 1 0-.708.708l3 3z"/>
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</svg>
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</button>
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</div>
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<div id="pages-container"></div>
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</div>
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</div>
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</div>
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</div>
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<div th:insert="~{fragments/footer.html :: footer}"></div>
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</div>
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<script>
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var myDocument = null;
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var myRenderer = null;
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const pagesContainer = document.getElementById("pages-container");
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function addPdfs() {
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var input = document.createElement('input');
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input.type = 'file';
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input.multiple = true;
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input.onchange = async(e) => {
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const files = e.target.files;
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for (var i=0; i < files.length; i++) {
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addPdfFile(files[i]);
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}
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}
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input.click();
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}
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async function addPdfFile(file) {
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const { renderer, pdfDocument } = await loadFile(file);
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for (var i=0; i < renderer.pageCount; i++) {
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const div = document.createElement('div');
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div.classList.add("page-container");
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var img = document.createElement('img');
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img.src = await renderer.renderPage(i);
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img.pageIdx = i;
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img.rend = renderer;
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img.doc = pdfDocument;
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div.appendChild(img);
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const buttonContainer = document.createElement('div');
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buttonContainer.classList.add("button-container");
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const moveUp = document.createElement('button');
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moveUp.classList.add("move-up-button","btn", "btn-secondary");
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moveUp.innerHTML = '<i class="bi bi-arrow-up-short"></i>';
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moveUp.onclick = e => {
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var imgContainer = e.target;
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while (!imgContainer.classList.contains("page-container")) {
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imgContainer = imgContainer.parentNode;
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}
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console.log("imgContainer", imgContainer);
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const sibling = imgContainer.previousSibling;
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console.log("sibling", sibling);
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if (sibling) {
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pagesContainer.removeChild(imgContainer);
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pagesContainer.insertBefore(imgContainer, sibling);
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imgContainer.scrollIntoView({
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behavior: "instant",
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block: "center",
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})
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}
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}
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buttonContainer.appendChild(moveUp);
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const moveDown = document.createElement('button');
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moveDown.classList.add("move-down-button","btn", "btn-secondary");
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moveDown.innerHTML = '<i class="bi bi-arrow-down-short"></i>';
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moveDown.onclick = e => {
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var imgContainer = e.target;
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while (!imgContainer.classList.contains("page-container")) {
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imgContainer = imgContainer.parentNode;
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}
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console.log("imgContainer", imgContainer);
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const sibling = imgContainer.nextSibling;
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console.log("sibling", sibling);
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if (sibling) {
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pagesContainer.removeChild(imgContainer);
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if (sibling.nextSibling) {
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pagesContainer.insertBefore(imgContainer, sibling.nextSibling);
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console.log("insert sibling.nextSibling", sibling.nextSibling);
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} else {
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pagesContainer.appendChild(imgContainer)
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console.log("append");
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}
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imgContainer.scrollIntoView({
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behavior: "instant",
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block: "center",
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})
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}
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}
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buttonContainer.appendChild(moveDown);
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const rotateCCW = document.createElement('button');
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rotateCCW.classList.add("btn", "btn-secondary");
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rotateCCW.innerHTML = `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-counterclockwise" viewBox="0 0 16 16">
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<path fill-rule="evenodd" d="M8 3a5 5 0 1 1-4.546 2.914.5.5 0 0 0-.908-.417A6 6 0 1 0 8 2v1z" />
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<path d="M8 4.466V.534a.25.25 0 0 0-.41-.192L5.23 2.308a.25.25 0 0 0 0 .384l2.36 1.966A.25.25 0 0 0 8 4.466z" />
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</svg>`;
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rotateCCW.onclick = e => {
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var imgContainer = e.target;
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while (!imgContainer.classList.contains("page-container")) {
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imgContainer = imgContainer.parentNode;
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}
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const img = imgContainer.querySelector("img");
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rotateElement(img, -90)
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}
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buttonContainer.appendChild(rotateCCW);
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const rotateCW = document.createElement('button');
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rotateCW.classList.add("btn", "btn-secondary");
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rotateCW.innerHTML = `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-clockwise" viewBox="0 0 16 16">
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<path fill-rule="evenodd" d="M8 3a5 5 0 1 0 4.546 2.914.5.5 0 0 1 .908-.417A6 6 0 1 1 8 2v1z" />
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<path d="M8 4.466V.534a.25.25 0 0 1 .41-.192l2.36 1.966c.12.1.12.284 0 .384L8.41 4.658A.25.25 0 0 1 8 4.466z" />
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</svg>`;
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rotateCW.onclick = e => {
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var imgContainer = e.target;
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while (!imgContainer.classList.contains("page-container")) {
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imgContainer = imgContainer.parentNode;
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}
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const img = imgContainer.querySelector("img");
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rotateElement(img, 90)
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}
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buttonContainer.appendChild(rotateCW);
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const deletePage = document.createElement('button');
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deletePage.classList.add("btn", "btn-secondary");
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deletePage.innerHTML = `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-trash" viewBox="0 0 16 16">
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<path d="M5.5 5.5A.5.5 0 0 1 6 6v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5Zm2.5 0a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5Zm3 .5a.5.5 0 0 0-1 0v6a.5.5 0 0 0 1 0V6Z"/>
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<path d="M14.5 3a1 1 0 0 1-1 1H13v9a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V4h-.5a1 1 0 0 1-1-1V2a1 1 0 0 1 1-1H6a1 1 0 0 1 1-1h2a1 1 0 0 1 1 1h3.5a1 1 0 0 1 1 1v1ZM4.118 4 4 4.059V13a1 1 0 0 0 1 1h6a1 1 0 0 0 1-1V4.059L11.882 4H4.118ZM2.5 3h11V2h-11v1Z"/>
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</svg>`;
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deletePage.onclick = e => {
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var imgContainer = e.target;
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while (!imgContainer.classList.contains("page-container")) {
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imgContainer = imgContainer.parentNode;
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}
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pagesContainer.removeChild(imgContainer);
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}
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buttonContainer.appendChild(deletePage);
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div.appendChild(buttonContainer);
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pagesContainer.appendChild(div);
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}
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}
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function rotateElement(element, deg) {
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var lastTransform = element.style.rotate;
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if (!lastTransform) {
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lastTransform = "0";
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}
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const lastAngle = parseInt(lastTransform.replace(/[^\d-]/g, ''));
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const newAngle = lastAngle + deg;
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element.style.rotate = newAngle + "deg";
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}
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function rotateAll(deg) {
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for (var i=0; i<pagesContainer.childNodes.length; i++) {
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const img = pagesContainer.childNodes[i].querySelector("img");
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rotateElement(img, deg)
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}
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}
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async function exportPdf() {
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const pdfDoc = await PDFLib.PDFDocument.create();
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for (var i=0; i<pagesContainer.childNodes.length; i++) {
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const img = pagesContainer.childNodes[i].querySelector("img");
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const pages = await pdfDoc.copyPages(img.doc, [img.pageIdx])
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const page = pages[0];
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const rotation = img.style.rotate;
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if (rotation) {
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const rotationAngle = parseInt(rotation.replace(/[^\d-]/g, ''));
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console.log(img.style.rotate, img.style.rotate.replace(/[^\d-]/g, ''))
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page.setRotation(PDFLib.degrees(page.getRotation().angle + rotationAngle))
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}
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pdfDoc.addPage(page);
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}
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const pdfBytes = await pdfDoc.save()
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const pdfBlob = new Blob([pdfBytes], { type: 'application/pdf' });
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const url = URL.createObjectURL(pdfBlob);
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const downloadLink = document.createElement('a');
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downloadLink.href = url;
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downloadLink.download = 'example.pdf';
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downloadLink.click(); // Simulate a click on the download link to start the download
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}
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async function loadFile(file) {
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var objectUrl = URL.createObjectURL(file);
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var pdfDocument = await toPdfLib(objectUrl);
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var renderer = await toRenderer(objectUrl);
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myDocument = pdfDocument;
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myRenderer = renderer;
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console.log(renderer, pdfDocument)
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return { renderer, pdfDocument };
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}
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async function toPdfLib(objectUrl) {
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const existingPdfBytes = await fetch(objectUrl).then(res => res.arrayBuffer());
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const pdfDoc = await PDFLib.PDFDocument.load(existingPdfBytes);
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return pdfDoc;
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}
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async function toRenderer(objectUrl) {
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const pdf = await pdfjsLib.getDocument(objectUrl).promise;
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return {
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document: pdf,
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pageCount: pdf.numPages,
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renderPage: async function(pageIdx) {
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const page = await this.document.getPage(pageIdx+1);
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const canvas = document.createElement("canvas");
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// set the canvas size to the size of the page
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if (page.rotate == 90 || page.rotate == 270) {
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canvas.width = page.view[3];
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canvas.height = page.view[2];
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} else {
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canvas.width = page.view[2];
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canvas.height = page.view[3];
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}
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// render the page onto the canvas
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var renderContext = {
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|
|
|
|
canvasContext: canvas.getContext("2d"),
|
|
|
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|
viewport: page.getViewport({ scale: 1 })
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|
|
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|
};
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|
|
|
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|
|
await page.render(renderContext).promise;
|
|
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|
|
return canvas.toDataURL();
|
|
|
|
|
}
|
|
|
|
|
};
|
|
|
|
|
}
|
|
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
<style>
|
|
|
|
|
#global-buttons-container {
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|
|
|
|
display: flex;
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|
|
|
|
gap: 10px;
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|
|
|
|
align-items: start;
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|
|
|
|
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|
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|
|
background: rgba(13, 110, 253, 0.1);
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|
|
|
|
border: 1px solid rgba(0, 0, 0, .25);
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|
|
|
|
backdrop-filter: blur(2px);
|
|
|
|
|
|
|
|
|
|
position: sticky;
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|
|
|
|
top: 10px;
|
|
|
|
|
z-index: 10;
|
|
|
|
|
padding: 10px;
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|
|
|
|
margin-top: 30px;
|
|
|
|
|
border-radius: 8px;
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|
|
|
|
}
|
|
|
|
|
#global-buttons-container > * {
|
|
|
|
|
padding: 0.6rem 0.75rem;
|
|
|
|
|
}
|
|
|
|
|
#global-buttons-container svg {
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|
|
|
|
width: 20px;
|
|
|
|
|
height: 20px;
|
|
|
|
|
}
|
|
|
|
|
#export-button {
|
|
|
|
|
margin-left: auto;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#pages-container {
|
|
|
|
|
width: 100%;
|
|
|
|
|
display: flex;
|
|
|
|
|
gap: 0px;
|
|
|
|
|
flex-direction: column;
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|
|
|
|
align-items: center;
|
|
|
|
|
margin: 30px 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
.page-container {
|
|
|
|
|
width: 500px;
|
|
|
|
|
aspect-ratio: 1;
|
|
|
|
|
text-align: center;
|
|
|
|
|
position: relative;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
.page-container img {
|
|
|
|
|
max-width: calc(100% - 15px);
|
|
|
|
|
max-height: calc(100% - 15px);
|
|
|
|
|
display: block;
|
|
|
|
|
position: absolute;
|
|
|
|
|
left: 50%;
|
|
|
|
|
top: 50%;
|
|
|
|
|
translate: -50% -50%;
|
|
|
|
|
box-shadow: 0 0 10px rgba(0,0,0);
|
|
|
|
|
transition: rotate .3s;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
.page-container .button-container {
|
|
|
|
|
position: absolute;
|
|
|
|
|
top: 50%;
|
|
|
|
|
translate: 0 -50%;
|
|
|
|
|
right: 6px;
|
|
|
|
|
}
|
|
|
|
|
.page-container .button-container > * {
|
|
|
|
|
padding: 0.25rem 0.5rem;
|
|
|
|
|
margin: 3px;
|
|
|
|
|
display: block;
|
|
|
|
|
}
|
|
|
|
|
.page-container svg {
|
|
|
|
|
width: 16px;
|
|
|
|
|
height: 16px;
|
|
|
|
|
}
|
|
|
|
|
.page-container:first-child .move-up-button {
|
|
|
|
|
visibility: hidden;
|
|
|
|
|
}
|
|
|
|
|
.page-container:last-child .move-down-button {
|
|
|
|
|
visibility: hidden;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#add-pdf-button {
|
|
|
|
|
margin: 0 auto;
|
|
|
|
|
}
|
|
|
|
|
</style>
|
|
|
|
|
</body>
|
|
|
|
|
|
|
|
|
|
</html>
|
