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2023-06-22
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<%--
Class Name : weekendCsWork.jsp
Description : 발신번호 리스트 조회 페이지
Modification Information
수정일 수정자 수정내용
------- -------- ---------------------------
2021.03.31 신명섭 최초 생성
Copyright (C) 2009 by ITN All right reserved.
--%>
<%@ page contentType="text/html; charset=utf-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="ui" uri="http://egovframework.gov/ctl/ui"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<%@ taglib prefix="ec" uri="/WEB-INF/tld/ecnet_tld.tld"%>
<%
response.setHeader("Cache-Control","no-store");
response.setHeader("Pragma","no-cache");
response.setDateHeader("Expires",0);
if (request.getProtocol().equals("HTTP/1.1")) response.setHeader("Cache-Control", "no-cache");
%>
<!DOCTYPE html>
<html lang="ko">
<head>
<script type="text/javascript" src="<c:url value='/js/EgovMultiFile.js'/>"></script>
<script src="//mozilla.github.io/pdf.js/build/pdf.js"></script>
</head>
<body>
<div>
<button id="prev">Previous</button>
<button id="next">Next</button>
<span>Page: <span id="page_num"></span> / <span id="page_count"></span></span>
</div>
<canvas id="the-canvas" name="the-canvas"></canvas>
</body>
</html>
<script type="text/javaScript" language="javascript">
var pdfDoc = null;
var pageNum = 1;
var pageRendering = false;
var pageNumPending = null;
var scale = 0.8;
var canvas = document.getElementById('the-canvas');
var ctx = canvas.getContext('2d');
/* var url = '/cmm/fms/FileDown.do?atchFileId=FILE_000000000019061&fileSn=0'; */
// var url = '/usr/local/tomcat/file/sht/pdf/2ccbb16e-62df-48c0-bbb1-3b6559bd4c36.pdf';
var url = '${pdfPath}';
/**
* Get page info from document, resize canvas accordingly, and render page.
* @param num Page number.
*/
function renderPage(num) {
pageRendering = true;
// Using promise to fetch the page
pdfDoc.getPage(num).then(function(page) {
var viewport = page.getViewport({scale: scale});
canvas.height = viewport.height;
canvas.width = viewport.width;
// Render PDF page into canvas context
var renderContext = {
canvasContext: ctx,
viewport: viewport
};
var renderTask = page.render(renderContext);
// Wait for rendering to finish
renderTask.promise.then(function() {
pageRendering = false;
if (pageNumPending !== null) {
// New page rendering is pending
renderPage(pageNumPending);
pageNumPending = null;
}
});
});
// Update page counters
document.getElementById('page_num').textContent = num;
}
/**
* If another page rendering in progress, waits until the rendering is
* finised. Otherwise, executes rendering immediately.
*/
function queueRenderPage(num) {
if (pageRendering) {
pageNumPending = num;
} else {
renderPage(num);
}
}
/**
* Displays previous page.
*/
function onPrevPage() {
if (pageNum <= 1) {
return;
}
pageNum--;
queueRenderPage(pageNum);
}
document.getElementById('prev').addEventListener('click', onPrevPage);
/**
* Displays next page.
*/
function onNextPage() {
if (pageNum >= pdfDoc.numPages) {
return;
}
pageNum++;
queueRenderPage(pageNum);
}
document.getElementById('next').addEventListener('click', onNextPage);
/**
* Asynchronously downloads PDF.
*/
pdfjsLib.getDocument(url).promise.then(function(pdfDoc_) {
pdfDoc = pdfDoc_;
document.getElementById('page_count').textContent = pdfDoc.numPages;
// Initial/first page rendering
renderPage(pageNum);
});
</script>