【发布时间】:2021-10-06 06:01:16
【问题描述】:
我使用pdf.js 和pdf.worker.js 来显示弹出模式。它在除 IE 之外的所有浏览器中都能正常工作。我已经看到了这个问题的不同答案,但没有一个对我有用。
我试过compatible.js 使pdf.js 工作,但没有帮助。你们中有人对此有任何想法吗?
请问我真的需要帮助。
我用来在弹出模式中显示 pdf 文档的代码如下:
// shows te pdf in pop up
function showPDF(pdf_url) {
$("#pdf-loader").show();
PDFJS.getDocument({ url: pdf_url }).then(function (pdf_doc) {
__PDF_DOC = pdf_doc;
__TOTAL_PAGES = __PDF_DOC.numPages;
// Hide the pdf loader and show pdf container in HTML
$("#pdf-loader").hide();
$("#pdf-contents").show();
$("#pdf-total-pages").text(__TOTAL_PAGES);
// Show the first page
__PDF_DOC.getPage(1).then(handlePages);
}).catch(function (error) {
// If error re-show the upload button
$("#pdf-loader").hide();
$("#upload-button").show();
});
}
// takes the pages of pdf
function handlePages(page) {
//This gives us the page's dimensions at full scale
var viewport = page.getViewport(1);
//We'll create a canvas for each page to draw it on
var canvas = document.createElement("canvas");
//canvas.style.display = "block";
canvas.setAttribute("id", "pdf" + __CURRENT_PAGE);
canvas.style.cssText = "border-bottom:1px solid #000000; cursor:crosshair; text-align:center; ";
var context = canvas.getContext('2d');
canvas.height = viewport.height;
canvas.width = viewport.width;
var a = canvas.width + 70;
document.getElementById("con").style.width = (a + "px");
if (a > 690) {
console.log(a);
$("#header").css({ marginLeft: "0px" });
$("#header1").css({ marginLeft: "0px" });
}
else {
$("#header").css({ marginLeft: "0px" });
$("#header1").css({ marginLeft: "0px" });
}
//Draw it on the canvas
page.render({ canvasContext: context, viewport: viewport });
//Add it to the web page
document.getElementById("div").appendChild(canvas);
//document.body.appendChild(canvas);
//Move to next page
__CURRENT_PAGE++;
if (__CURRENT_PAGE <= __TOTAL_PAGES) {
__PDF_DOC.getPage(__CURRENT_PAGE).then(handlePages);
}
}
【问题讨论】:
标签: javascript pdf canvas modal-dialog internet-explorer-11