native pdf viewer with mozilla pdfjs

2026-09-22 13:38:45 +00:00 · 2021-12-29 02:13:17 +08:00
parent 0e8629e935
commit 53539e2cd9
8 changed files with 56 additions and 318 deletions
@@ -0,0 +1,23 @@
+import { FunctionComponent } from 'react'
+
+import DownloadBtn from '../DownloadBtn'
+
+const PDFEmbedPreview: FunctionComponent<{ file: any }> = ({ file }) => {
+  // const url = `/api/proxy?url=${encodeURIComponent(file['@microsoft.graph.downloadUrl'])}&inline=true`
+  const url = `https://mozilla.github.io/pdf.js/web/viewer.html?file=${encodeURIComponent(
+    file['@microsoft.graph.downloadUrl']
+  )}`
+
+  return (
+    <>
+      <div className="w-full rounded overflow-hidden" style={{ height: '80vh' }}>
+        <iframe src={url} frameBorder="0" width="100%" height="100%"></iframe>
+      </div>
+      <div className="mt-4">
+        <DownloadBtn downloadUrl={file['@microsoft.graph.downloadUrl']} />
+      </div>
+    </>
+  )
+}
+
+export default PDFEmbedPreview
@@ -1,98 +0,0 @@
-import { FunctionComponent, useEffect, useRef, useState } from 'react'
-import { Document, Page, pdfjs } from 'react-pdf'
-import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
-
-import Loading from '../Loading'
-import DownloadBtn from '../DownloadBtn'
-
-pdfjs.GlobalWorkerOptions.workerSrc = `//cdnjs.cloudflare.com/ajax/libs/pdf.js/${pdfjs.version}/pdf.worker.min.js`
-
-const PDFPreview: FunctionComponent<{ file: any }> = ({ file }) => {
-  const [pageNumber, setPageNumber] = useState(1)
-  const [totalPages, setTotalPages] = useState(0)
-  const [loadingText, setLoadingText] = useState('Loading PDF ...')
-
-  const [pdfContainerWidth, setPdfContainerWidth] = useState(400)
-  const pdfContainter = useRef<HTMLDivElement>(null)
-
-  const onDocumentLoadSuccess = (pdf: any) => {
-    setTotalPages(pdf.numPages)
-  }
-
-  useEffect(() => {
-    setPdfContainerWidth(pdfContainter.current ? pdfContainter.current.offsetWidth : 400)
-  }, [])
-
-  return (
-    <>
-      <div
-        className="dark:bg-gray-900 md:p-3 no-scrollbar flex flex-col w-full overflow-scroll bg-white rounded"
-        style={{ maxHeight: '90vh' }}
-      >
-        <div className="no-scrollbar flex-1 w-full overflow-scroll" ref={pdfContainter} style={{ maxHeight: '80vh' }}>
-          <Document
-            className="dark:bg-gray-800 bg-gray-100"
-            file={file['@microsoft.graph.downloadUrl']}
-            onLoadSuccess={onDocumentLoadSuccess}
-            loading={<Loading loadingText={loadingText} />}
-            onLoadProgress={({ loaded, total }) => {
-              setLoadingText(`Loading PDF ${Math.round((loaded / total) * 100)}%`)
-            }}
-            options={{
-              cMapUrl: `//cdn.jsdelivr.net/npm/pdfjs-dist@${pdfjs.version}/cmaps/`,
-              cMapPacked: true,
-            }}
-          >
-            <Page
-              pageNumber={pageNumber}
-              width={pdfContainerWidth > 400 ? pdfContainerWidth * 0.8 : pdfContainerWidth}
-            />
-          </Document>
-        </div>
-
-        <div className="md:mb-0 dark:text-white flex flex-wrap items-center justify-center w-full my-4 space-x-2">
-          <button
-            className="focus:ring focus:ring-red-300 focus:outline-none hover:bg-red-600 disabled:opacity-50 px-4 py-2 text-white transition-all duration-75 bg-red-500 rounded cursor-pointer"
-            onClick={() => {
-              pageNumber > 1 && setPageNumber(pageNumber - 1)
-            }}
-            disabled={!(pageNumber > 1)}
-          >
-            <FontAwesomeIcon icon="arrow-left" />
-          </button>
-          <div className="px-4 py-2">
-            Page{' '}
-            <input
-              value={pageNumber}
-              className="bg-red-50 dark:bg-gray-600 focus:ring focus:ring-red-300 dark:focus:ring-red-700 focus:outline-none w-10 p-1 mr-1 text-center rounded"
-              style={{
-                maxWidth: 50,
-              }}
-              onChange={e => {
-                const v = parseInt(e.target.value)
-                if (v <= totalPages && v >= 0) {
-                  setPageNumber(v)
-                }
-              }}
-            ></input>
-            /<span className="ml-1 text-center">{totalPages}</span>
-          </div>
-          <button
-            className="focus:ring focus:ring-red-300 focus:outline-none hover:bg-red-600 disabled:opacity-50 px-4 py-2 text-white transition-all duration-75 bg-red-500 rounded cursor-pointer"
-            onClick={() => {
-              pageNumber < totalPages && setPageNumber(pageNumber + 1)
-            }}
-            disabled={!(pageNumber < totalPages)}
-          >
-            <FontAwesomeIcon icon="arrow-right" />
-          </button>
-        </div>
-      </div>
-      <div className="mt-4">
-        <DownloadBtn downloadUrl={file['@microsoft.graph.downloadUrl']} />
-      </div>
-    </>
-  )
-}
-
-export default PDFPreview