pdf annotations, use n to add annotation for current selection
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2fdd070361
commit
8e39b18fe8
3 changed files with 161 additions and 14 deletions
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@ -50,9 +50,11 @@ See https://github.com/adobe-type-tools/cmap-resources
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<script src="/static/pdf.js/pdf.js"></script>
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<!--
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<script src="/static/pdf.js/debugger.js"></script>
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-->
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<script src="/static/pdf.js/viewer.js"></script>
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<script src="/static/reader/pdf.js"></script>
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</head>
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@ -426,7 +428,6 @@ See https://github.com/adobe-type-tools/cmap-resources
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</div>
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</div>
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</div>
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</body>
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</html>
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@ -2,6 +2,7 @@
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var reader;
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var id = document.location.pathname.split('/')[1];
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var annotations = JSON.parse(localStorage[id + '.annotations'] || '[]')
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var currentSelection;
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function saveAnnotations() {
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localStorage[id + '.annotations'] = JSON.stringify(annotations)
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@ -45,6 +46,7 @@ document.onreadystatechange = function () {
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rendition.annotations.highlight(a.cfiRange, a.data || {}, onHighlightClicked);
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})
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reader.rendition.on('keydown', function(event) {
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if (event.key == 'Delete') {
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document.querySelectorAll('.epubjs-hl.selected').forEach(function(a) {
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@ -55,23 +57,43 @@ document.onreadystatechange = function () {
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saveAnnotations()
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})
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}
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})
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rendition.on("selected", function(cfiRange, contents) {
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getText(book, cfiRange, function(quote) {
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var data = {
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quote: quote
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}
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rendition.annotations.highlight(cfiRange, data, onHighlightClicked);
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annotations.push({
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cfiRange: cfiRange,
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data: data
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})
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if (event.key == 'n') {
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if (currentSelection) {
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/*
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var range = currentSelection.contents.window.getSelection().getRangeAt(0)
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console.log(
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currentSelection.cfiRange,
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reader.rendition.book.section().cfiFromRange(range).toString()
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)
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//currentSelection.cfiRange = reader.rendition.book.section().cfiFromRange(range).toString()
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*/
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rendition.annotations.highlight(currentSelection.cfiRange, currentSelection.data, onHighlightClicked);
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currentSelection.contents.window.getSelection().removeAllRanges();
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delete currentSelection.contents
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annotations.push(currentSelection)
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saveAnnotations()
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document.querySelectorAll('.epubjs-hl.selected').forEach(function(other) {
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other.classList.remove('selected')
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})
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currentSelection = null
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}
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}
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})
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rendition.on("mark", function(cfiRange, contents) {
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console.log('!! mark', cfiRange)
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})
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rendition.on("selected", function(cfiRange, contents) {
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console.log('!! selected', cfiRange)
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getText(book, cfiRange, function(quote) {
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currentSelection = {
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cfiRange: cfiRange,
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data: {
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quote: quote
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},
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contents: contents
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}
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})
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contents.window.getSelection().removeAllRanges();
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});
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}
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};
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124
static/reader/pdf.js
Normal file
124
static/reader/pdf.js
Normal file
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@ -0,0 +1,124 @@
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var id = document.location.pathname.split('/')[1];
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var annotations = JSON.parse(localStorage[id + '.annotations'] || '[]')
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var currentPage = 1, rendered = false
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function getID() {
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var id = 0;
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while (annotations.filter(function(a) {
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return a.id == id
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}).length) {
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id++
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}
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return id
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}
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window.addEventListener('keydown', function(event) {
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if (event.key == 'Delete') {
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var selected = document.querySelector('.oml-annotation.selected')
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if (selected) {
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removeAnnotation(selected.dataset.id)
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}
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} else if (event.key == 'n') {
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if (!window.getSelection().isCollapsed) {
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var annot = getHighlight()
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renderAnnotation(annot)
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addAnnotation(annot)
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window.getSelection().removeAllRanges();
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}
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event.stopPropagation()
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event.preventDefault()
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}
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})
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window.addEventListener('pagerendered', function (event) {
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loadAnnotations(event.detail.pageNumber - 1)
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})
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function getHighlight() {
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var pageIndex = PDFViewerApplication.pdfViewer.currentPageNumber - 1;
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var page = PDFViewerApplication.pdfViewer.getPageView(pageIndex);
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var pageRect = page.canvas.getClientRects()[0];
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var selectionRects = window.getSelection().getRangeAt(0).getClientRects();
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var viewport = page.viewport;
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var selected = Array.from(selectionRects).map(function (r) {
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return viewport.convertToPdfPoint(r.left - pageRect.x, r.top - pageRect.y).concat(
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viewport.convertToPdfPoint(r.right - pageRect.x, r.bottom - pageRect.y));
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});
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return {page: pageIndex, coords: selected, id: getID()};
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}
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function renderAnnotation(annotation) {
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var pageIndex = annotation.page;
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var page = PDFViewerApplication.pdfViewer.getPageView(pageIndex);
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if (!page.canvas) {
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setTimeout(function() {
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renderAnnotation(annotation)
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}, 50)
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return
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}
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var pageElement = page.canvas.parentElement;
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var viewport = page.viewport;
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annotation.coords.forEach(function (rect) {
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var bounds = viewport.convertToViewportRectangle(rect);
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var el = document.createElement('div');
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el.classList.add('oml-annotation')
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el.classList.add('a' + annotation.id)
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el.classList.add('page' + annotation.page)
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el.dataset.id = annotation.id
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el.setAttribute('style', 'position: absolute; background-color: yellow;opacity:0.3;' +
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'left:' + Math.min(bounds[0], bounds[2]) + 'px; top:' + Math.min(bounds[1], bounds[3]) + 'px;' +
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'width:' + Math.abs(bounds[0] - bounds[2]) + 'px; height:' + Math.abs(bounds[1] - bounds[3]) + 'px;');
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el.addEventListener('click', function() {
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if (el.classList.contains('selected')) {
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deselectAnnotation(annotation.id)
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} else {
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selectAnnotation(annotation.id)
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}
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});
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pageElement.appendChild(el);
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});
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}
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function addAnnotation(annotation) {
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annotations.push(annotation)
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saveAnnotations()
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}
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function selectAnnotation(id) {
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document.querySelectorAll('.oml-annotation.a' + id).forEach(function(g) {
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g.classList.add('selected')
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g.style.backgroundColor = 'blue'
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})
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}
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function deselectAnnotation(id) {
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document.querySelectorAll('.oml-annotation.a' + id).forEach(function(g) {
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g.classList.remove('selected')
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g.style.backgroundColor = 'yellow'
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})
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}
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function removeAnnotation(id) {
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document.querySelectorAll('.oml-annotation.a' + id).forEach(function(a) {
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a.remove()
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})
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annotations = annotations.filter(function(annotation) {
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return annotation.id != id
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})
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saveAnnotations()
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}
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function saveAnnotations() {
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localStorage[id + '.annotations'] = JSON.stringify(annotations)
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}
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function loadAnnotations(page) {
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document.querySelectorAll('.oml-annotation.page' + page).forEach(function(e) {
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e.remove()
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})
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annotations.filter(function(a) {
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return a.page == page
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}).forEach(function(annot) {
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renderAnnotation(annot)
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})
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}
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