Tweak additional files to integrate decryption and clean up js
This commit is contained in:
Reece Browne
@@ -32,163 +32,7 @@
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</div>
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</div>
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<script type="module" th:src="@{'/pdfjs-legacy/pdf.mjs'}"></script>
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<script>
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let pdfCanvas = document.getElementById('cropPdfCanvas');
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let overlayCanvas = document.getElementById('overlayCanvas');
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let canvasesContainer = document.getElementById('canvasesContainer');
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canvasesContainer.style.display = "none";
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let containerRect = canvasesContainer.getBoundingClientRect();
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let context = pdfCanvas.getContext('2d');
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let overlayContext = overlayCanvas.getContext('2d');
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overlayCanvas.width = pdfCanvas.width;
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overlayCanvas.height = pdfCanvas.height;
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let isDrawing = false; // New flag to check if drawing is ongoing
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let cropForm = document.getElementById('cropForm');
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let fileInput = document.getElementById('fileInput-input');
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let xInput = document.getElementById('x');
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let yInput = document.getElementById('y');
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let widthInput = document.getElementById('width');
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let heightInput = document.getElementById('height');
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let pdfDoc = null;
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let currentPage = 1;
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let totalPages = 0;
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let startX = 0;
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let startY = 0;
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let rectWidth = 0;
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let rectHeight = 0;
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let pageScale = 1; // The scale which the pdf page renders
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let timeId = null; // timeout id for resizing canvases event
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function renderPageFromFile(file) {
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if (file.type === 'application/pdf') {
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let reader = new FileReader();
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reader.onload = function(ev) {
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let typedArray = new Uint8Array(reader.result);
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pdfjsLib.GlobalWorkerOptions.workerSrc = './pdfjs-legacy/pdf.worker.mjs'
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pdfjsLib.getDocument(typedArray).promise.then(function(pdf) {
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pdfDoc = pdf;
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totalPages = pdf.numPages;
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renderPage(currentPage);
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});
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};
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reader.readAsArrayBuffer(file);
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}
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}
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window.addEventListener("resize", function() {
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clearTimeout(timeId);
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timeId = setTimeout(function () {
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if (fileInput.files.length == 0) return;
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let canvasesContainer = document.getElementById('canvasesContainer');
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let containerRect = canvasesContainer.getBoundingClientRect();
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context.clearRect(0, 0, pdfCanvas.width, pdfCanvas.height);
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overlayContext.clearRect(0, 0, overlayCanvas.width, overlayCanvas.height);
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pdfCanvas.width = containerRect.width;
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pdfCanvas.height = containerRect.height;
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overlayCanvas.width = containerRect.width;
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overlayCanvas.height = containerRect.height;
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let file = fileInput.files[0];
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renderPageFromFile(file);
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}, 1000);
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});
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fileInput.addEventListener('change', function(e) {
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canvasesContainer.style.display = "block"; // set for visual purposes
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let file = e.target.files[0];
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renderPageFromFile(file);
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});
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cropForm.addEventListener('submit', function(e) {
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if (xInput.value == "" && yInput.value == "" && widthInput.value == "" && heightInput.value == "") {
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// Ορίστε συντεταγμένες για ολόκληρη την επιφάνεια του PDF
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xInput.value = 0;
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yInput.value = 0;
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widthInput.value = containerRect.width;
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heightInput.value = containerRect.height;
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}
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});
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overlayCanvas.addEventListener('mousedown', function(e) {
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// Clear previously drawn rectangle on the main canvas
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context.clearRect(0, 0, pdfCanvas.width, pdfCanvas.height);
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renderPage(currentPage); // Re-render the PDF
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// Clear the overlay canvas to ensure old drawings are removed
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overlayContext.clearRect(0, 0, overlayCanvas.width, overlayCanvas.height);
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startX = e.offsetX;
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startY = e.offsetY;
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isDrawing = true;
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});
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overlayCanvas.addEventListener('mousemove', function(e) {
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if (!isDrawing) return;
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overlayContext.clearRect(0, 0, overlayCanvas.width, overlayCanvas.height); // Clear previous rectangle
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rectWidth = e.offsetX - startX;
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rectHeight = e.offsetY - startY;
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overlayContext.strokeStyle = 'red';
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overlayContext.strokeRect(startX, startY, rectWidth, rectHeight);
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});
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overlayCanvas.addEventListener('mouseup', function(e) {
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isDrawing = false;
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rectWidth = e.offsetX - startX;
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rectHeight = e.offsetY - startY;
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let flippedY = pdfCanvas.height - e.offsetY;
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xInput.value = startX / pageScale;
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yInput.value = flippedY / pageScale;
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widthInput.value = rectWidth / pageScale;
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heightInput.value = rectHeight /pageScale;
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// Draw the final rectangle on the main canvas
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context.strokeStyle = 'red';
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context.strokeRect(startX, startY, rectWidth, rectHeight);
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overlayContext.clearRect(0, 0, overlayCanvas.width, overlayCanvas.height); // Clear the overlay
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});
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function renderPage(pageNumber) {
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pdfDoc.getPage(pageNumber).then(function(page) {
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let canvasesContainer = document.getElementById('canvasesContainer');
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let containerRect = canvasesContainer.getBoundingClientRect();
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pageScale = containerRect.width / page.getViewport({ scale: 1 }).width; // The new scale
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let viewport = page.getViewport({ scale: containerRect.width / page.getViewport({ scale: 1 }).width });
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canvasesContainer.width =viewport.width;
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canvasesContainer.height = viewport.height;
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pdfCanvas.width = viewport.width;
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pdfCanvas.height = viewport.height;
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overlayCanvas.width = viewport.width; // Match overlay canvas size with PDF canvas
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overlayCanvas.height = viewport.height;
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let renderContext = { canvasContext: context, viewport: viewport };
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page.render(renderContext);
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pdfCanvas.classList.add("shadow-canvas");
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});
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}
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</script>
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<script type="module" th:src="@{'/js/pages/crop.js'}"></script>
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</div>
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</div>
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<th:block th:insert="~{fragments/footer.html :: footer}"></th:block>
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