diff --git a/src/display/api.js b/src/display/api.js
index f5c6b15e7..a72fc525f 100644
--- a/src/display/api.js
+++ b/src/display/api.js
@@ -577,166 +577,179 @@ var PDFDataRangeTransport = (function pdfDataRangeTransportClosure() {
/**
* Proxy to a PDFDocument in the worker thread. Also, contains commonly used
* properties that can be read synchronously.
- * @class
- * @alias PDFDocumentProxy
*/
-var PDFDocumentProxy = (function PDFDocumentProxyClosure() {
- function PDFDocumentProxy(pdfInfo, transport, loadingTask) {
- this._pdfInfo = pdfInfo;
- this.transport = transport;
+class PDFDocumentProxy {
+ constructor(pdfInfo, transport, loadingTask) {
this.loadingTask = loadingTask;
- }
- PDFDocumentProxy.prototype = /** @lends PDFDocumentProxy.prototype */ {
- /**
- * @return {number} Total number of pages the PDF contains.
- */
- get numPages() {
- return this._pdfInfo.numPages;
- },
- /**
- * @return {string} A unique ID to identify a PDF. Not guaranteed to be
- * unique.
- */
- get fingerprint() {
- return this._pdfInfo.fingerprint;
- },
- /**
- * @param {number} pageNumber The page number to get. The first page is 1.
- * @return {Promise} A promise that is resolved with a {@link PDFPageProxy}
- * object.
- */
- getPage(pageNumber) {
- return this.transport.getPage(pageNumber);
- },
- /**
- * @param {{num: number, gen: number}} ref The page reference. Must have
- * the 'num' and 'gen' properties.
- * @return {Promise} A promise that is resolved with the page index that is
- * associated with the reference.
- */
- getPageIndex: function PDFDocumentProxy_getPageIndex(ref) {
- return this.transport.getPageIndex(ref);
- },
- /**
- * @return {Promise} A promise that is resolved with a lookup table for
- * mapping named destinations to reference numbers.
- *
- * This can be slow for large documents: use getDestination instead
- */
- getDestinations: function PDFDocumentProxy_getDestinations() {
- return this.transport.getDestinations();
- },
- /**
- * @param {string} id - The named destination to get.
- * @return {Promise} A promise that is resolved with all information
- * of the given named destination.
- */
- getDestination: function PDFDocumentProxy_getDestination(id) {
- return this.transport.getDestination(id);
- },
- /**
- * @return {Promise} A promise that is resolved with:
- * an Array containing the pageLabels that correspond to the pageIndexes,
- * or `null` when no pageLabels are present in the PDF file.
- */
- getPageLabels: function PDFDocumentProxy_getPageLabels() {
- return this.transport.getPageLabels();
- },
- /**
- * @return {Promise} A promise that is resolved with a {string} containing
- * the PageMode name.
- */
- getPageMode() {
- return this.transport.getPageMode();
- },
- /**
- * @return {Promise} A promise that is resolved with a lookup table for
- * mapping named attachments to their content.
- */
- getAttachments: function PDFDocumentProxy_getAttachments() {
- return this.transport.getAttachments();
- },
- /**
- * @return {Promise} A promise that is resolved with an {Array} of all the
- * JavaScript strings in the name tree, or `null` if no JavaScript exists.
- */
- getJavaScript() {
- return this.transport.getJavaScript();
- },
- /**
- * @return {Promise} A promise that is resolved with an {Array} that is a
- * tree outline (if it has one) of the PDF. The tree is in the format of:
- * [
- * {
- * title: string,
- * bold: boolean,
- * italic: boolean,
- * color: rgb Uint8ClampedArray,
- * dest: dest obj,
- * url: string,
- * items: array of more items like this
- * },
- * ...
- * ].
- */
- getOutline: function PDFDocumentProxy_getOutline() {
- return this.transport.getOutline();
- },
- /**
- * @return {Promise} A promise that is resolved with an {Object} that has
- * info and metadata properties. Info is an {Object} filled with anything
- * available in the information dictionary and similarly metadata is a
- * {Metadata} object with information from the metadata section of the PDF.
- */
- getMetadata: function PDFDocumentProxy_getMetadata() {
- return this.transport.getMetadata();
- },
- /**
- * @return {Promise} A promise that is resolved with a TypedArray that has
- * the raw data from the PDF.
- */
- getData: function PDFDocumentProxy_getData() {
- return this.transport.getData();
- },
- /**
- * @return {Promise} A promise that is resolved when the document's data
- * is loaded. It is resolved with an {Object} that contains the length
- * property that indicates size of the PDF data in bytes.
- */
- getDownloadInfo: function PDFDocumentProxy_getDownloadInfo() {
- return this.transport.downloadInfoCapability.promise;
- },
- /**
- * @return {Promise} A promise this is resolved with current stats about
- * document structures (see {@link PDFDocumentStats}).
- */
- getStats: function PDFDocumentProxy_getStats() {
- return this.transport.getStats();
- },
- /**
- * Cleans up resources allocated by the document, e.g. created @font-face.
- */
- cleanup: function PDFDocumentProxy_cleanup() {
- this.transport.startCleanup();
- },
- /**
- * Destroys current document instance and terminates worker.
- */
- destroy: function PDFDocumentProxy_destroy() {
- return this.loadingTask.destroy();
- },
- /**
- * @return {Object} A subset of the current {DocumentInitParameters},
- * which are either needed in the viewer and/or whose default values
- * may be affected by the `apiCompatibilityParams`.
- */
- get loadingParams() {
- return this.transport.loadingParams;
- },
- };
- return PDFDocumentProxy;
-})();
+ this._pdfInfo = pdfInfo;
+ this._transport = transport;
+ }
+
+ /**
+ * @return {number} Total number of pages the PDF contains.
+ */
+ get numPages() {
+ return this._pdfInfo.numPages;
+ }
+
+ /**
+ * @return {string} A (not guaranteed to be) unique ID to identify a PDF.
+ */
+ get fingerprint() {
+ return this._pdfInfo.fingerprint;
+ }
+
+ /**
+ * @param {number} pageNumber - The page number to get. The first page is 1.
+ * @return {Promise} A promise that is resolved with a {@link PDFPageProxy}
+ * object.
+ */
+ getPage(pageNumber) {
+ return this._transport.getPage(pageNumber);
+ }
+
+ /**
+ * @param {{num: number, gen: number}} ref - The page reference. Must have
+ * the `num` and `gen` properties.
+ * @return {Promise} A promise that is resolved with the page index that is
+ * associated with the reference.
+ */
+ getPageIndex(ref) {
+ return this._transport.getPageIndex(ref);
+ }
+
+ /**
+ * @return {Promise} A promise that is resolved with a lookup table for
+ * mapping named destinations to reference numbers.
+ *
+ * This can be slow for large documents. Use `getDestination` instead.
+ */
+ getDestinations() {
+ return this._transport.getDestinations();
+ }
+
+ /**
+ * @param {string} id - The named destination to get.
+ * @return {Promise} A promise that is resolved with all information
+ * of the given named destination.
+ */
+ getDestination(id) {
+ return this._transport.getDestination(id);
+ }
+
+ /**
+ * @return {Promise} A promise that is resolved with an {Array} containing
+ * the page labels that correspond to the page indexes, or `null` when
+ * no page labels are present in the PDF file.
+ */
+ getPageLabels() {
+ return this._transport.getPageLabels();
+ }
+
+ /**
+ * @return {Promise} A promise that is resolved with a {string} containing
+ * the page mode name.
+ */
+ getPageMode() {
+ return this._transport.getPageMode();
+ }
+
+ /**
+ * @return {Promise} A promise that is resolved with a lookup table for
+ * mapping named attachments to their content.
+ */
+ getAttachments() {
+ return this._transport.getAttachments();
+ }
+
+ /**
+ * @return {Promise} A promise that is resolved with an {Array} of all the
+ * JavaScript strings in the name tree, or `null` if no JavaScript exists.
+ */
+ getJavaScript() {
+ return this._transport.getJavaScript();
+ }
+
+ /**
+ * @return {Promise} A promise that is resolved with an {Array} that is a
+ * tree outline (if it has one) of the PDF. The tree is in the format of:
+ * [
+ * {
+ * title: string,
+ * bold: boolean,
+ * italic: boolean,
+ * color: rgb Uint8ClampedArray,
+ * dest: dest obj,
+ * url: string,
+ * items: array of more items like this
+ * },
+ * ...
+ * ]
+ */
+ getOutline() {
+ return this._transport.getOutline();
+ }
+
+ /**
+ * @return {Promise} A promise that is resolved with an {Object} that has
+ * `info` and `metadata` properties. `info` is an {Object} filled with
+ * anything available in the information dictionary and similarly
+ * `metadata` is a {Metadata} object with information from the metadata
+ * section of the PDF.
+ */
+ getMetadata() {
+ return this._transport.getMetadata();
+ }
+
+ /**
+ * @return {Promise} A promise that is resolved with a {TypedArray} that has
+ * the raw data from the PDF.
+ */
+ getData() {
+ return this._transport.getData();
+ }
+
+ /**
+ * @return {Promise} A promise that is resolved when the document's data
+ * is loaded. It is resolved with an {Object} that contains the `length`
+ * property that indicates size of the PDF data in bytes.
+ */
+ getDownloadInfo() {
+ return this._transport.downloadInfoCapability.promise;
+ }
+
+ /**
+ * @return {Promise} A promise this is resolved with current statistics about
+ * document structures (see {@link PDFDocumentStats}).
+ */
+ getStats() {
+ return this._transport.getStats();
+ }
+
+ /**
+ * Cleans up resources allocated by the document, e.g. created `@font-face`.
+ */
+ cleanup() {
+ this._transport.startCleanup();
+ }
+
+ /**
+ * Destroys the current document instance and terminates the worker.
+ */
+ destroy() {
+ return this.loadingTask.destroy();
+ }
+
+ /**
+ * @return {Object} A subset of the current {DocumentInitParameters},
+ * which are either needed in the viewer and/or whose default values
+ * may be affected by the `apiCompatibilityParams`.
+ */
+ get loadingParams() {
+ return this._transport.loadingParams;
+ }
+}
/**
* Page getTextContent parameters.