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pdfje zdaj renderamo z pdf.js

master
Kostanjevec 2022-06-04 14:22:54 +02:00
parent 3c96d0a795
commit fb2d5a08ad
1 changed files with 50 additions and 16 deletions
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66
templates/deck/index.html
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@ -8,27 +8,61 @@
<p>BODY</p>
<article class="post">
<div>
<header>
<h1>{{ card['title'] }}</h1>
</header>
<header>
<h1>{{ card['title'] }}</h1>
</header>
<!--iframe src={{ card['item_location'] }} width="auto" height="auto"> </iframe-->
<div id="pdf-doc"></div>
<!--iframe src={{ card['item_location'] }} width="auto" height="auto"> </iframe-->
<canvas id="pdf-doc"></canvas>
<form method="post">
<button input type="submit" name="rate" data-cardtitle=card[title] value="Yes">Yes</button>
<button input type="submit" name="rate" value="Maybe">Maybe</button>
<button input type="submit" name="rate" value="No">No</button>
</form>
</div>
<form method="post">
<button input type="submit" name="rate" data-cardtitle=card[title] value="Yes">Yes</button>
<button input type="submit" name="rate" value="Maybe">Maybe</button>
<button input type="submit" name="rate" value="No">No</button>
</form>
</article>
<script type="text/javascript" src="{{ url_for('static', filename='js/pdfobject.min.js') }}"></script>
<script type="text/javascript" src="{{ url_for('static', filename='js/pdf.js') }}"></script>
<script type="text/javascript" src="{{ url_for('static', filename='js/pdf.worker.js') }}"></script>
<script type="text/javascript">
document.addEventListener('DOMContentLoaded', function (){
PDFObject.embed("{{ card['item_location'] }}", "#pdf-doc");
});
var zoomed = false;
var canvas = document.getElementById('pdf-doc');
var context = canvas.getContext('2d');
var openPage = function(pdfFile, pageNumber) {
pdfFile.getPage(pageNumber).then(function(page) {
var scale = 1.5;
var viewport = page.getViewport({ scale: scale, });
// Support HiDPI-screens.
var outputScale = window.devicePixelRatio || 1;
canvas.width = Math.floor(viewport.width * outputScale);
canvas.height = Math.floor(viewport.height * outputScale);
canvas.style.width = Math.floor(viewport.width) + "px";
canvas.style.height = Math.floor(viewport.height) + "px";
var transform = outputScale !== 1
? [outputScale, 0, 0, outputScale, 0, 0]
: null;
var renderContext = {
canvasContext: context,
viewport: viewport,
transform: transform
};
page.render(renderContext);
});
};
pdfjsLib.disableStream = true;
var doc = pdfjsLib.getDocument('{{ card["item_location"] }}');
doc.promise.then(function(pdf) {
// Do something with the PDF file stored in the `pdf` variable
openPage(pdf, 1);
});
});
</script>
{% endblock %}