diff --git a/web/.eslintrc b/web/.eslintrc
index 4bf1e6286..3fe119c0d 100644
--- a/web/.eslintrc
+++ b/web/.eslintrc
@@ -9,5 +9,6 @@
// ECMAScript 6
"no-var": "error",
+ "prefer-const": "error",
},
}
diff --git a/web/annotation_layer_builder.js b/web/annotation_layer_builder.js
index 54b10102e..280de1027 100644
--- a/web/annotation_layer_builder.js
+++ b/web/annotation_layer_builder.js
@@ -64,7 +64,7 @@ class AnnotationLayerBuilder {
return;
}
- let parameters = {
+ const parameters = {
viewport: viewport.clone({ dontFlip: true }),
div: this.div,
annotations,
diff --git a/web/app.js b/web/app.js
index 1bfae6314..20031b10b 100644
--- a/web/app.js
+++ b/web/app.js
@@ -108,7 +108,7 @@ const DefaultExternalServices = {
},
};
-let PDFViewerApplication = {
+const PDFViewerApplication = {
initialBookmark: document.location.hash.substring(1),
initialized: false,
fellback: false,
@@ -190,7 +190,7 @@ let PDFViewerApplication = {
this.bindWindowEvents();
// We can start UI localization now.
- let appContainer = appConfig.appContainer || document.documentElement;
+ const appContainer = appConfig.appContainer || document.documentElement;
this.l10n.translate(appContainer).then(() => {
// Dispatch the 'localized' event on the `eventBus` once the viewer
// has been fully initialized and translated.
@@ -233,8 +233,8 @@ let PDFViewerApplication = {
const waitOn = [];
// Special debugging flags in the hash section of the URL.
- let hash = document.location.hash.substring(1);
- let hashParams = parseQueryString(hash);
+ const hash = document.location.hash.substring(1);
+ const hashParams = parseQueryString(hash);
if (
"disableworker" in hashParams &&
@@ -280,14 +280,14 @@ let PDFViewerApplication = {
case "visible":
case "shadow":
case "hover":
- let viewer = this.appConfig.viewerContainer;
+ const viewer = this.appConfig.viewerContainer;
viewer.classList.add("textLayer-" + hashParams["textlayer"]);
break;
}
}
if ("pdfbug" in hashParams) {
AppOptions.set("pdfBug", true);
- let enabled = hashParams["pdfbug"].split(",");
+ const enabled = hashParams["pdfbug"].split(",");
waitOn.push(loadAndEnablePDFBug(enabled));
}
// It is not possible to change locale for the (various) extension builds.
@@ -328,18 +328,18 @@ let PDFViewerApplication = {
getGlobalEventBus(AppOptions.get("eventBusDispatchToDOM"));
this.eventBus = eventBus;
- let pdfRenderingQueue = new PDFRenderingQueue();
+ const pdfRenderingQueue = new PDFRenderingQueue();
pdfRenderingQueue.onIdle = this.cleanup.bind(this);
this.pdfRenderingQueue = pdfRenderingQueue;
- let pdfLinkService = new PDFLinkService({
+ const pdfLinkService = new PDFLinkService({
eventBus,
externalLinkTarget: AppOptions.get("externalLinkTarget"),
externalLinkRel: AppOptions.get("externalLinkRel"),
});
this.pdfLinkService = pdfLinkService;
- let downloadManager = this.externalServices.createDownloadManager({
+ const downloadManager = this.externalServices.createDownloadManager({
disableCreateObjectURL: AppOptions.get("disableCreateObjectURL"),
});
this.downloadManager = downloadManager;
@@ -519,7 +519,7 @@ let PDFViewerApplication = {
document.fullscreenEnabled === true ||
document.mozFullScreenEnabled === true;
} else {
- let doc = document.documentElement;
+ const doc = document.documentElement;
support = !!(
doc.requestFullscreen ||
doc.mozRequestFullScreen ||
@@ -552,7 +552,7 @@ let PDFViewerApplication = {
},
get loadingBar() {
- let bar = new ProgressBar("#loadingBar");
+ const bar = new ProgressBar("#loadingBar");
return shadow(this, "loadingBar", bar);
},
@@ -632,14 +632,14 @@ let PDFViewerApplication = {
* destruction is completed.
*/
async close() {
- let errorWrapper = this.appConfig.errorWrapper.container;
+ const errorWrapper = this.appConfig.errorWrapper.container;
errorWrapper.setAttribute("hidden", "true");
if (!this.pdfLoadingTask) {
return undefined;
}
- let promise = this.pdfLoadingTask.destroy();
+ const promise = this.pdfLoadingTask.destroy();
this.pdfLoadingTask = null;
if (this.pdfDocument) {
@@ -692,11 +692,11 @@ let PDFViewerApplication = {
}
// Set the necessary global worker parameters, using the available options.
const workerParameters = AppOptions.getAll(OptionKind.WORKER);
- for (let key in workerParameters) {
+ for (const key in workerParameters) {
GlobalWorkerOptions[key] = workerParameters[key];
}
- let parameters = Object.create(null);
+ const parameters = Object.create(null);
if (typeof file === "string") {
// URL
this.setTitleUsingUrl(file);
@@ -710,7 +710,7 @@ let PDFViewerApplication = {
}
// Set the necessary API parameters, using the available options.
const apiParameters = AppOptions.getAll(OptionKind.API);
- for (let key in apiParameters) {
+ for (const key in apiParameters) {
let value = apiParameters[key];
if (key === "docBaseUrl" && !value) {
@@ -727,7 +727,7 @@ let PDFViewerApplication = {
}
if (args) {
- for (let key in args) {
+ for (const key in args) {
const value = args[key];
if (key === "length") {
@@ -737,7 +737,7 @@ let PDFViewerApplication = {
}
}
- let loadingTask = getDocument(parameters);
+ const loadingTask = getDocument(parameters);
this.pdfLoadingTask = loadingTask;
loadingTask.onPassword = (updateCallback, reason) => {
@@ -762,7 +762,7 @@ let PDFViewerApplication = {
return undefined; // Ignore errors for previously opened PDF files.
}
- let message = exception && exception.message;
+ const message = exception && exception.message;
let loadingErrorMessage;
if (exception instanceof InvalidPDFException) {
// change error message also for other builds
@@ -805,12 +805,12 @@ let PDFViewerApplication = {
downloadManager.downloadUrl(url, filename);
}
- let url = this.baseUrl;
+ const url = this.baseUrl;
// Use this.url instead of this.baseUrl to perform filename detection based
// on the reference fragment as ultimate fallback if needed.
- let filename =
+ const filename =
this.contentDispositionFilename || getPDFFileNameFromURL(this.url);
- let downloadManager = this.downloadManager;
+ const downloadManager = this.downloadManager;
downloadManager.onerror = err => {
// This error won't really be helpful because it's likely the
// fallback won't work either (or is already open).
@@ -867,7 +867,7 @@ let PDFViewerApplication = {
* optionally a 'stack' property.
*/
error(message, moreInfo) {
- let moreInfoText = [
+ const moreInfoText = [
this.l10n.get(
"error_version_info",
{ version: version || "?", build: build || "?" },
@@ -916,21 +916,21 @@ let PDFViewerApplication = {
typeof PDFJSDev === "undefined" ||
!PDFJSDev.test("FIREFOX || MOZCENTRAL")
) {
- let errorWrapperConfig = this.appConfig.errorWrapper;
- let errorWrapper = errorWrapperConfig.container;
+ const errorWrapperConfig = this.appConfig.errorWrapper;
+ const errorWrapper = errorWrapperConfig.container;
errorWrapper.removeAttribute("hidden");
- let errorMessage = errorWrapperConfig.errorMessage;
+ const errorMessage = errorWrapperConfig.errorMessage;
errorMessage.textContent = message;
- let closeButton = errorWrapperConfig.closeButton;
+ const closeButton = errorWrapperConfig.closeButton;
closeButton.onclick = function() {
errorWrapper.setAttribute("hidden", "true");
};
- let errorMoreInfo = errorWrapperConfig.errorMoreInfo;
- let moreInfoButton = errorWrapperConfig.moreInfoButton;
- let lessInfoButton = errorWrapperConfig.lessInfoButton;
+ const errorMoreInfo = errorWrapperConfig.errorMoreInfo;
+ const moreInfoButton = errorWrapperConfig.moreInfoButton;
+ const lessInfoButton = errorWrapperConfig.lessInfoButton;
moreInfoButton.onclick = function() {
errorMoreInfo.removeAttribute("hidden");
moreInfoButton.setAttribute("hidden", "true");
@@ -964,7 +964,7 @@ let PDFViewerApplication = {
// already been fetched (only an issue when disableAutoFetch is enabled).
return;
}
- let percent = Math.round(level * 100);
+ const percent = Math.round(level * 100);
// When we transition from full request to range requests, it's possible
// that we discard some of the loaded data. This can cause the loading
// bar to move backwards. So prevent this by only updating the bar if it
@@ -1038,13 +1038,13 @@ let PDFViewerApplication = {
this.pdfLinkService.setDocument(pdfDocument, baseDocumentUrl);
this.pdfDocumentProperties.setDocument(pdfDocument, this.url);
- let pdfViewer = this.pdfViewer;
+ const pdfViewer = this.pdfViewer;
pdfViewer.setDocument(pdfDocument);
- let firstPagePromise = pdfViewer.firstPagePromise;
- let pagesPromise = pdfViewer.pagesPromise;
- let onePageRendered = pdfViewer.onePageRendered;
+ const firstPagePromise = pdfViewer.firstPagePromise;
+ const pagesPromise = pdfViewer.pagesPromise;
+ const onePageRendered = pdfViewer.onePageRendered;
- let pdfThumbnailViewer = this.pdfThumbnailViewer;
+ const pdfThumbnailViewer = this.pdfThumbnailViewer;
pdfThumbnailViewer.setDocument(pdfDocument);
firstPagePromise.then(pdfPage => {
@@ -1354,7 +1354,7 @@ let PDFViewerApplication = {
}.bind(null, info.Producer.toLowerCase())
);
}
- let formType = !info.IsAcroFormPresent
+ const formType = !info.IsAcroFormPresent
? null
: info.IsXFAPresent
? "xfa"
@@ -1507,9 +1507,9 @@ let PDFViewerApplication = {
return;
}
- let pagesOverview = this.pdfViewer.getPagesOverview();
- let printContainer = this.appConfig.printContainer;
- let printService = PDFPrintServiceFactory.instance.createPrintService(
+ const pagesOverview = this.pdfViewer.getPagesOverview();
+ const printContainer = this.appConfig.printContainer;
+ const printService = PDFPrintServiceFactory.instance.createPrintService(
this.pdfDocument,
pagesOverview,
printContainer,
@@ -1542,7 +1542,7 @@ let PDFViewerApplication = {
if (!this.pdfDocument) {
return;
}
- let newRotation = (this.pdfViewer.pagesRotation + 360 + delta) % 360;
+ const newRotation = (this.pdfViewer.pagesRotation + 360 + delta) % 360;
this.pdfViewer.pagesRotation = newRotation;
// Note that the thumbnail viewer is updated, and rendering is triggered,
// in the 'rotationchanging' event handler.
@@ -1556,7 +1556,7 @@ let PDFViewerApplication = {
},
bindEvents() {
- let { eventBus, _boundEvents } = this;
+ const { eventBus, _boundEvents } = this;
_boundEvents.beforePrint = this.beforePrint.bind(this);
_boundEvents.afterPrint = this.afterPrint.bind(this);
@@ -1605,7 +1605,7 @@ let PDFViewerApplication = {
},
bindWindowEvents() {
- let { eventBus, _boundEvents } = this;
+ const { eventBus, _boundEvents } = this;
_boundEvents.windowResize = () => {
eventBus.dispatch("resize", { source: window });
@@ -1634,7 +1634,7 @@ let PDFViewerApplication = {
},
unbindEvents() {
- let { eventBus, _boundEvents } = this;
+ const { eventBus, _boundEvents } = this;
eventBus.off("resize", webViewerResize);
eventBus.off("hashchange", webViewerHashchange);
@@ -1683,7 +1683,7 @@ let PDFViewerApplication = {
},
unbindWindowEvents() {
- let { _boundEvents } = this;
+ const { _boundEvents } = this;
window.removeEventListener("visibilitychange", webViewerVisibilityChange);
window.removeEventListener("wheel", webViewerWheel);
@@ -1713,12 +1713,12 @@ if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
return;
}
try {
- let viewerOrigin = new URL(window.location.href).origin || "null";
+ const viewerOrigin = new URL(window.location.href).origin || "null";
if (HOSTED_VIEWER_ORIGINS.includes(viewerOrigin)) {
// Hosted or local viewer, allow for any file locations
return;
}
- let { origin, protocol } = new URL(file, window.location.href);
+ const { origin, protocol } = new URL(file, window.location.href);
// Removing of the following line will not guarantee that the viewer will
// start accepting URLs from foreign origin -- CORS headers on the remote
// server must be properly configured.
@@ -1729,7 +1729,7 @@ if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
throw new Error("file origin does not match viewer's");
}
} catch (ex) {
- let message = ex && ex.message;
+ const message = ex && ex.message;
PDFViewerApplication.l10n
.get("loading_error", null, "An error occurred while loading the PDF.")
.then(loadingErrorMessage => {
@@ -1755,7 +1755,7 @@ async function loadFakeWorker() {
}
function loadAndEnablePDFBug(enabledTabs) {
- let appConfig = PDFViewerApplication.appConfig;
+ const appConfig = PDFViewerApplication.appConfig;
return loadScript(appConfig.debuggerScriptPath).then(function() {
PDFBug.enable(enabledTabs);
PDFBug.init(
@@ -1769,11 +1769,11 @@ function loadAndEnablePDFBug(enabledTabs) {
}
function webViewerInitialized() {
- let appConfig = PDFViewerApplication.appConfig;
+ const appConfig = PDFViewerApplication.appConfig;
let file;
if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
- let queryString = document.location.search.substring(1);
- let params = parseQueryString(queryString);
+ const queryString = document.location.search.substring(1);
+ const params = parseQueryString(queryString);
file = "file" in params ? params.file : AppOptions.get("defaultUrl");
validateFileURL(file);
} else if (PDFJSDev.test("FIREFOX || MOZCENTRAL")) {
@@ -1783,7 +1783,7 @@ function webViewerInitialized() {
}
if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
- let fileInput = document.createElement("input");
+ const fileInput = document.createElement("input");
fileInput.id = appConfig.openFileInputName;
fileInput.className = "fileInput";
fileInput.setAttribute("type", "file");
@@ -1803,7 +1803,7 @@ function webViewerInitialized() {
}
fileInput.addEventListener("change", function(evt) {
- let files = evt.target.files;
+ const files = evt.target.files;
if (!files || files.length === 0) {
return;
}
@@ -1924,9 +1924,9 @@ if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
}
function webViewerPageRendered(evt) {
- let pageNumber = evt.pageNumber;
- let pageIndex = pageNumber - 1;
- let pageView = PDFViewerApplication.pdfViewer.getPageView(pageIndex);
+ const pageNumber = evt.pageNumber;
+ const pageIndex = pageNumber - 1;
+ const pageView = PDFViewerApplication.pdfViewer.getPageView(pageIndex);
// If the page is still visible when it has finished rendering,
// ensure that the page number input loading indicator is hidden.
@@ -1942,7 +1942,7 @@ function webViewerPageRendered(evt) {
// Use the rendered page to set the corresponding thumbnail image.
if (PDFViewerApplication.pdfSidebar.isThumbnailViewVisible) {
- let thumbnailView = PDFViewerApplication.pdfThumbnailViewer.getThumbnail(
+ const thumbnailView = PDFViewerApplication.pdfThumbnailViewer.getThumbnail(
pageIndex
);
thumbnailView.setImage(pageView);
@@ -2032,7 +2032,7 @@ function webViewerPageMode(evt) {
function webViewerNamedAction(evt) {
// Processing couple of named actions that might be useful.
// See also PDFLinkService.executeNamedAction
- let action = evt.action;
+ const action = evt.action;
switch (action) {
case "GoToPage":
PDFViewerApplication.appConfig.toolbar.pageNumber.select();
@@ -2047,7 +2047,7 @@ function webViewerNamedAction(evt) {
}
function webViewerPresentationModeChanged(evt) {
- let { active, switchInProgress } = evt;
+ const { active, switchInProgress } = evt;
PDFViewerApplication.pdfViewer.presentationModeState = switchInProgress
? PresentationModeState.CHANGING
: active
@@ -2059,7 +2059,7 @@ function webViewerSidebarViewChanged(evt) {
PDFViewerApplication.pdfRenderingQueue.isThumbnailViewEnabled =
PDFViewerApplication.pdfSidebar.isThumbnailViewVisible;
- let store = PDFViewerApplication.store;
+ const store = PDFViewerApplication.store;
if (store && PDFViewerApplication.isInitialViewSet) {
// Only update the storage when the document has been loaded *and* rendered.
store.set("sidebarView", evt.view).catch(function() {});
@@ -2067,7 +2067,7 @@ function webViewerSidebarViewChanged(evt) {
}
function webViewerUpdateViewarea(evt) {
- let location = evt.location,
+ const location = evt.location,
store = PDFViewerApplication.store;
if (store && PDFViewerApplication.isInitialViewSet) {
@@ -2083,22 +2083,22 @@ function webViewerUpdateViewarea(evt) {
/* unable to write to storage */
});
}
- let href = PDFViewerApplication.pdfLinkService.getAnchorUrl(
+ const href = PDFViewerApplication.pdfLinkService.getAnchorUrl(
location.pdfOpenParams
);
PDFViewerApplication.appConfig.toolbar.viewBookmark.href = href;
PDFViewerApplication.appConfig.secondaryToolbar.viewBookmarkButton.href = href;
// Show/hide the loading indicator in the page number input element.
- let currentPage = PDFViewerApplication.pdfViewer.getPageView(
+ const currentPage = PDFViewerApplication.pdfViewer.getPageView(
PDFViewerApplication.page - 1
);
- let loading = currentPage.renderingState !== RenderingStates.FINISHED;
+ const loading = currentPage.renderingState !== RenderingStates.FINISHED;
PDFViewerApplication.toolbar.updateLoadingIndicatorState(loading);
}
function webViewerScrollModeChanged(evt) {
- let store = PDFViewerApplication.store;
+ const store = PDFViewerApplication.store;
if (store && PDFViewerApplication.isInitialViewSet) {
// Only update the storage when the document has been loaded *and* rendered.
store.set("scrollMode", evt.mode).catch(function() {});
@@ -2106,7 +2106,7 @@ function webViewerScrollModeChanged(evt) {
}
function webViewerSpreadModeChanged(evt) {
- let store = PDFViewerApplication.store;
+ const store = PDFViewerApplication.store;
if (store && PDFViewerApplication.isInitialViewSet) {
// Only update the storage when the document has been loaded *and* rendered.
store.set("spreadMode", evt.mode).catch(function() {});
@@ -2114,11 +2114,11 @@ function webViewerSpreadModeChanged(evt) {
}
function webViewerResize() {
- let { pdfDocument, pdfViewer } = PDFViewerApplication;
+ const { pdfDocument, pdfViewer } = PDFViewerApplication;
if (!pdfDocument) {
return;
}
- let currentScaleValue = pdfViewer.currentScaleValue;
+ const currentScaleValue = pdfViewer.currentScaleValue;
if (
currentScaleValue === "auto" ||
currentScaleValue === "page-fit" ||
@@ -2131,7 +2131,7 @@ function webViewerResize() {
}
function webViewerHashchange(evt) {
- let hash = evt.hash;
+ const hash = evt.hash;
if (!hash) {
return;
}
@@ -2151,7 +2151,7 @@ if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
) {
return; // Opening a new PDF file isn't supported in Presentation Mode.
}
- let file = evt.fileInput.files[0];
+ const file = evt.fileInput.files[0];
if (URL.createObjectURL && !AppOptions.get("disableCreateObjectURL")) {
let url = URL.createObjectURL(file);
@@ -2162,16 +2162,16 @@ if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
} else {
PDFViewerApplication.setTitleUsingUrl(file.name);
// Read the local file into a Uint8Array.
- let fileReader = new FileReader();
+ const fileReader = new FileReader();
fileReader.onload = function webViewerChangeFileReaderOnload(evt) {
- let buffer = evt.target.result;
+ const buffer = evt.target.result;
PDFViewerApplication.open(new Uint8Array(buffer));
};
fileReader.readAsArrayBuffer(file);
}
// URL does not reflect proper document location - hiding some icons.
- let appConfig = PDFViewerApplication.appConfig;
+ const appConfig = PDFViewerApplication.appConfig;
appConfig.toolbar.viewBookmark.setAttribute("hidden", "true");
appConfig.secondaryToolbar.viewBookmarkButton.setAttribute(
"hidden",
@@ -2187,7 +2187,7 @@ function webViewerPresentationMode() {
}
function webViewerOpenFile() {
if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
- let openFileInputName = PDFViewerApplication.appConfig.openFileInputName;
+ const openFileInputName = PDFViewerApplication.appConfig.openFileInputName;
document.getElementById(openFileInputName).click();
}
}
@@ -2223,7 +2223,7 @@ function webViewerZoomReset() {
PDFViewerApplication.zoomReset();
}
function webViewerPageNumberChanged(evt) {
- let pdfViewer = PDFViewerApplication.pdfViewer;
+ const pdfViewer = PDFViewerApplication.pdfViewer;
// Note that for `` HTML elements, an empty string will
// be returned for non-number inputs; hence we simply do nothing in that case.
if (evt.value !== "") {
@@ -2318,7 +2318,7 @@ function webViewerRotationChanging(evt) {
}
function webViewerPageChanging(evt) {
- let page = evt.pageNumber;
+ const page = evt.pageNumber;
PDFViewerApplication.toolbar.setPageNumber(page, evt.pageLabel || null);
PDFViewerApplication.secondaryToolbar.setPageNumber(page);
@@ -2329,7 +2329,7 @@ function webViewerPageChanging(evt) {
// We need to update stats.
if (typeof Stats !== "undefined" && Stats.enabled) {
- let pageView = PDFViewerApplication.pdfViewer.getPageView(page - 1);
+ const pageView = PDFViewerApplication.pdfViewer.getPageView(page - 1);
if (pageView && pageView.stats) {
Stats.add(page, pageView.stats);
}
@@ -2374,27 +2374,27 @@ function webViewerWheel(evt) {
return;
}
- let previousScale = pdfViewer.currentScale;
+ const previousScale = pdfViewer.currentScale;
- let delta = normalizeWheelEventDelta(evt);
+ const delta = normalizeWheelEventDelta(evt);
const MOUSE_WHEEL_DELTA_PER_PAGE_SCALE = 3.0;
- let ticks = delta * MOUSE_WHEEL_DELTA_PER_PAGE_SCALE;
+ const ticks = delta * MOUSE_WHEEL_DELTA_PER_PAGE_SCALE;
if (ticks < 0) {
PDFViewerApplication.zoomOut(-ticks);
} else {
PDFViewerApplication.zoomIn(ticks);
}
- let currentScale = pdfViewer.currentScale;
+ const currentScale = pdfViewer.currentScale;
if (previousScale !== currentScale) {
// After scaling the page via zoomIn/zoomOut, the position of the upper-
// left corner is restored. When the mouse wheel is used, the position
// under the cursor should be restored instead.
- let scaleCorrectionFactor = currentScale / previousScale - 1;
- let rect = pdfViewer.container.getBoundingClientRect();
- let dx = evt.clientX - rect.left;
- let dy = evt.clientY - rect.top;
+ const scaleCorrectionFactor = currentScale / previousScale - 1;
+ const rect = pdfViewer.container.getBoundingClientRect();
+ const dx = evt.clientX - rect.left;
+ const dy = evt.clientY - rect.top;
pdfViewer.container.scrollLeft += dx * scaleCorrectionFactor;
pdfViewer.container.scrollTop += dy * scaleCorrectionFactor;
}
@@ -2407,7 +2407,7 @@ function webViewerClick(evt) {
if (!PDFViewerApplication.secondaryToolbar.isOpen) {
return;
}
- let appConfig = PDFViewerApplication.appConfig;
+ const appConfig = PDFViewerApplication.appConfig;
if (
PDFViewerApplication.pdfViewer.containsElement(evt.target) ||
(appConfig.toolbar.container.contains(evt.target) &&
@@ -2424,14 +2424,15 @@ function webViewerKeyDown(evt) {
let handled = false,
ensureViewerFocused = false;
- let cmd =
+ const cmd =
(evt.ctrlKey ? 1 : 0) |
(evt.altKey ? 2 : 0) |
(evt.shiftKey ? 4 : 0) |
(evt.metaKey ? 8 : 0);
- let pdfViewer = PDFViewerApplication.pdfViewer;
- let isViewerInPresentationMode = pdfViewer && pdfViewer.isInPresentationMode;
+ const pdfViewer = PDFViewerApplication.pdfViewer;
+ const isViewerInPresentationMode =
+ pdfViewer && pdfViewer.isInPresentationMode;
// First, handle the key bindings that are independent whether an input
// control is selected or not.
@@ -2446,7 +2447,7 @@ function webViewerKeyDown(evt) {
break;
case 71: // g
if (!PDFViewerApplication.supportsIntegratedFind) {
- let findState = PDFViewerApplication.findController.state;
+ const findState = PDFViewerApplication.findController.state;
if (findState) {
PDFViewerApplication.findController.executeCommand("findagain", {
query: findState.query,
@@ -2549,8 +2550,8 @@ function webViewerKeyDown(evt) {
// Some shortcuts should not get handled if a control/input element
// is selected.
- let curElement = document.activeElement || document.querySelector(":focus");
- let curElementTagName = curElement && curElement.tagName.toUpperCase();
+ const curElement = document.activeElement || document.querySelector(":focus");
+ const curElementTagName = curElement && curElement.tagName.toUpperCase();
if (
curElementTagName === "INPUT" ||
curElementTagName === "TEXTAREA" ||
@@ -2777,7 +2778,7 @@ function apiPageModeToSidebarView(mode) {
}
/* Abstract factory for the print service. */
-let PDFPrintServiceFactory = {
+const PDFPrintServiceFactory = {
instance: {
supportsPrinting: false,
createPrintService() {
diff --git a/web/base_viewer.js b/web/base_viewer.js
index a2f0b2a50..632d67ac6 100644
--- a/web/base_viewer.js
+++ b/web/base_viewer.js
@@ -82,9 +82,9 @@ const DEFAULT_CACHE_SIZE = 10;
*/
function PDFPageViewBuffer(size) {
- let data = [];
+ const data = [];
this.push = function(view) {
- let i = data.indexOf(view);
+ const i = data.indexOf(view);
if (i >= 0) {
data.splice(i, 1);
}
@@ -279,7 +279,7 @@ class BaseViewer {
}
let page = val | 0; // Fallback page number.
if (this._pageLabels) {
- let i = this._pageLabels.indexOf(val);
+ const i = this._pageLabels.indexOf(val);
if (i >= 0) {
page = i + 1;
}
@@ -353,10 +353,10 @@ class BaseViewer {
}
this._pagesRotation = rotation;
- let pageNumber = this._currentPageNumber;
+ const pageNumber = this._currentPageNumber;
for (let i = 0, ii = this._pages.length; i < ii; i++) {
- let pageView = this._pages[i];
+ const pageView = this._pages[i];
pageView.update(pageView.scale, rotation);
}
// Prevent errors in case the rotation changes *before* the scale has been
@@ -398,9 +398,9 @@ class BaseViewer {
if (!pdfDocument) {
return;
}
- let pagesCount = pdfDocument.numPages;
+ const pagesCount = pdfDocument.numPages;
- let pagesCapability = createPromiseCapability();
+ const pagesCapability = createPromiseCapability();
this.pagesPromise = pagesCapability.promise;
pagesCapability.promise.then(() => {
@@ -443,14 +443,14 @@ class BaseViewer {
// viewport for all pages
firstPagePromise
.then(firstPdfPage => {
- let scale = this.currentScale;
+ const scale = this.currentScale;
const viewport = firstPdfPage.getViewport({ scale: scale * CSS_UNITS });
for (let pageNum = 1; pageNum <= pagesCount; ++pageNum) {
let textLayerFactory = null;
if (this.textLayerMode !== TextLayerMode.DISABLE) {
textLayerFactory = this;
}
- let pageView = new PDFPageView({
+ const pageView = new PDFPageView({
container: this._setDocumentViewerElement,
eventBus: this.eventBus,
id: pageNum,
@@ -509,7 +509,7 @@ class BaseViewer {
for (let pageNum = 2; pageNum <= pagesCount; ++pageNum) {
pdfDocument.getPage(pageNum).then(
pdfPage => {
- let pageView = this._pages[pageNum - 1];
+ const pageView = this._pages[pageNum - 1];
if (!pageView.pdfPage) {
pageView.setPdfPage(pdfPage);
}
@@ -561,8 +561,8 @@ class BaseViewer {
}
// Update all the `PDFPageView` instances.
for (let i = 0, ii = this._pages.length; i < ii; i++) {
- let pageView = this._pages[i];
- let label = this._pageLabels && this._pageLabels[i];
+ const pageView = this._pages[i];
+ const label = this._pageLabels && this._pageLabels[i];
pageView.setPageLabel(label);
}
}
@@ -665,7 +665,7 @@ class BaseViewer {
if (scale > 0) {
this._setScaleUpdatePages(scale, value, noScroll, /* preset = */ false);
} else {
- let currentPage = this._pages[this._currentPageNumber - 1];
+ const currentPage = this._pages[this._currentPageNumber - 1];
if (!currentPage) {
return;
}
@@ -676,10 +676,10 @@ class BaseViewer {
if (!noPadding && this._isScrollModeHorizontal) {
[hPadding, vPadding] = [vPadding, hPadding]; // Swap the padding values.
}
- let pageWidthScale =
+ const pageWidthScale =
((this.container.clientWidth - hPadding) / currentPage.width) *
currentPage.scale;
- let pageHeightScale =
+ const pageHeightScale =
((this.container.clientHeight - vPadding) / currentPage.height) *
currentPage.scale;
switch (value) {
@@ -698,7 +698,7 @@ class BaseViewer {
case "auto":
// For pages in landscape mode, fit the page height to the viewer
// *unless* the page would thus become too wide to fit horizontally.
- let horizontalScale = isPortraitOrientation(currentPage)
+ const horizontalScale = isPortraitOrientation(currentPage)
? pageWidthScale
: Math.min(pageHeightScale, pageWidthScale);
scale = Math.min(MAX_AUTO_SCALE, horizontalScale);
@@ -723,7 +723,7 @@ class BaseViewer {
this._setScale(this._currentScaleValue, true);
}
- let pageView = this._pages[this._currentPageNumber - 1];
+ const pageView = this._pages[this._currentPageNumber - 1];
this._scrollIntoView({ pageDiv: pageView.div });
}
@@ -768,12 +768,12 @@ class BaseViewer {
height = 0,
widthScale,
heightScale;
- let changeOrientation = pageView.rotation % 180 === 0 ? false : true;
- let pageWidth =
+ const changeOrientation = pageView.rotation % 180 === 0 ? false : true;
+ const pageWidth =
(changeOrientation ? pageView.height : pageView.width) /
pageView.scale /
CSS_UNITS;
- let pageHeight =
+ const pageHeight =
(changeOrientation ? pageView.width : pageView.height) /
pageView.scale /
CSS_UNITS;
@@ -817,8 +817,8 @@ class BaseViewer {
y = destArray[3];
width = destArray[4] - x;
height = destArray[5] - y;
- let hPadding = this.removePageBorders ? 0 : SCROLLBAR_PADDING;
- let vPadding = this.removePageBorders ? 0 : VERTICAL_PADDING;
+ const hPadding = this.removePageBorders ? 0 : SCROLLBAR_PADDING;
+ const vPadding = this.removePageBorders ? 0 : VERTICAL_PADDING;
widthScale =
(this.container.clientWidth - hPadding) / width / CSS_UNITS;
@@ -848,7 +848,7 @@ class BaseViewer {
return;
}
- let boundingRect = [
+ const boundingRect = [
pageView.viewport.convertToViewportPoint(x, y),
pageView.viewport.convertToViewportPoint(x + width, y + height),
];
@@ -870,24 +870,24 @@ class BaseViewer {
}
_updateLocation(firstPage) {
- let currentScale = this._currentScale;
- let currentScaleValue = this._currentScaleValue;
- let normalizedScaleValue =
+ const currentScale = this._currentScale;
+ const currentScaleValue = this._currentScaleValue;
+ const normalizedScaleValue =
parseFloat(currentScaleValue) === currentScale
? Math.round(currentScale * 10000) / 100
: currentScaleValue;
- let pageNumber = firstPage.id;
+ const pageNumber = firstPage.id;
let pdfOpenParams = "#page=" + pageNumber;
pdfOpenParams += "&zoom=" + normalizedScaleValue;
- let currentPageView = this._pages[pageNumber - 1];
- let container = this.container;
- let topLeft = currentPageView.getPagePoint(
+ const currentPageView = this._pages[pageNumber - 1];
+ const container = this.container;
+ const topLeft = currentPageView.getPagePoint(
container.scrollLeft - firstPage.x,
container.scrollTop - firstPage.y
);
- let intLeft = Math.round(topLeft[0]);
- let intTop = Math.round(topLeft[1]);
+ const intLeft = Math.round(topLeft[0]);
+ const intTop = Math.round(topLeft[1]);
pdfOpenParams += "," + intLeft + "," + intTop;
this._location = {
@@ -1066,11 +1066,11 @@ class BaseViewer {
}
forceRendering(currentlyVisiblePages) {
- let visiblePages = currentlyVisiblePages || this._getVisiblePages();
- let scrollAhead = this._isScrollModeHorizontal
+ const visiblePages = currentlyVisiblePages || this._getVisiblePages();
+ const scrollAhead = this._isScrollModeHorizontal
? this.scroll.right
: this.scroll.down;
- let pageView = this.renderingQueue.getHighestPriority(
+ const pageView = this.renderingQueue.getHighestPriority(
visiblePages,
this._pages,
scrollAhead
@@ -1140,9 +1140,9 @@ class BaseViewer {
* widths and heights.
*/
get hasEqualPageSizes() {
- let firstPageView = this._pages[0];
+ const firstPageView = this._pages[0];
for (let i = 1, ii = this._pages.length; i < ii; ++i) {
- let pageView = this._pages[i];
+ const pageView = this._pages[i];
if (
pageView.width !== firstPageView.width ||
pageView.height !== firstPageView.height
@@ -1158,8 +1158,8 @@ class BaseViewer {
* @returns {Array} Array of objects with width/height/rotation fields.
*/
getPagesOverview() {
- let pagesOverview = this._pages.map(function(pageView) {
- let viewport = pageView.pdfPage.getViewport({ scale: 1 });
+ const pagesOverview = this._pages.map(function(pageView) {
+ const viewport = pageView.pdfPage.getViewport({ scale: 1 });
return {
width: viewport.width,
height: viewport.height,
@@ -1169,7 +1169,7 @@ class BaseViewer {
if (!this.enablePrintAutoRotate) {
return pagesOverview;
}
- let isFirstPagePortrait = isPortraitOrientation(pagesOverview[0]);
+ const isFirstPagePortrait = isPortraitOrientation(pagesOverview[0]);
return pagesOverview.map(function(size) {
if (isFirstPagePortrait === isPortraitOrientation(size)) {
return size;
diff --git a/web/chromecom.js b/web/chromecom.js
index b3c805029..eccdd8418 100644
--- a/web/chromecom.js
+++ b/web/chromecom.js
@@ -26,7 +26,7 @@ if (typeof PDFJSDev === "undefined" || !PDFJSDev.test("CHROME")) {
);
}
-let ChromeCom = {
+const ChromeCom = {
/**
* Creates an event that the extension is listening for and will
* asynchronously respond by calling the callback.
@@ -38,7 +38,7 @@ let ChromeCom = {
* immediately invoked with no arguments.
*/
request(action, data, callback) {
- let message = {
+ const message = {
action,
data,
};
@@ -110,7 +110,7 @@ let ChromeCom = {
};
function getEmbedderOrigin(callback) {
- let origin = window === top ? location.origin : location.ancestorOrigins[0];
+ const origin = window === top ? location.origin : location.ancestorOrigins[0];
if (origin === "null") {
// file:-URLs, data-URLs, sandboxed frames, etc.
getParentOrigin(callback);
@@ -171,14 +171,14 @@ function requestAccessToLocalFile(fileUrl, overlayManager, callback) {
);
}
chromeFileAccessOverlayPromise.then(function() {
- let iconPath = chrome.runtime.getManifest().icons[48];
+ const iconPath = chrome.runtime.getManifest().icons[48];
document.getElementById("chrome-pdfjs-logo-bg").style.backgroundImage =
"url(" + chrome.runtime.getURL(iconPath) + ")";
// Use Chrome's definition of UI language instead of PDF.js's #lang=...,
// because the shown string should match the UI at chrome://extensions.
// These strings are from chrome/app/resources/generated_resources_*.xtb.
- let i18nFileAccessLabel = PDFJSDev.json(
+ const i18nFileAccessLabel = PDFJSDev.json(
"$ROOT/web/chrome-i18n-allow-access-to-file-urls.json"
)[chrome.i18n.getUILanguage && chrome.i18n.getUILanguage()];
@@ -188,7 +188,7 @@ function requestAccessToLocalFile(fileUrl, overlayManager, callback) {
).textContent = i18nFileAccessLabel;
}
- let link = document.getElementById("chrome-link-to-extensions-page");
+ const link = document.getElementById("chrome-link-to-extensions-page");
link.href = "chrome://extensions/?id=" + chrome.runtime.id;
link.onclick = function(e) {
// Direct navigation to chrome:// URLs is blocked by Chrome, so we
@@ -207,12 +207,12 @@ function requestAccessToLocalFile(fileUrl, overlayManager, callback) {
document.getElementById("chrome-url-of-local-file").textContent = fileUrl;
document.getElementById("chrome-file-fallback").onchange = function() {
- let file = this.files[0];
+ const file = this.files[0];
if (file) {
- let originalFilename = decodeURIComponent(fileUrl.split("/").pop());
+ const originalFilename = decodeURIComponent(fileUrl.split("/").pop());
let originalUrl = fileUrl;
if (originalFilename !== file.name) {
- let msg =
+ const msg =
"The selected file does not match the original file." +
"\nOriginal: " +
originalFilename +
@@ -288,7 +288,7 @@ function setReferer(url, callback) {
// back and forward, the background page will not observe a HTTP request
// with Referer. To make sure that the Referer is preserved, store it in
// history.state, which is preserved across reloads/navigations.
- let state = window.history.state || {};
+ const state = window.history.state || {};
state.chromecomState = referer;
window.history.replaceState(state, "");
}
@@ -309,13 +309,13 @@ function setReferer(url, callback) {
// chrome.storage.sync is not supported in every Chromium-derivate.
// Note: The background page takes care of migrating values from
// chrome.storage.local to chrome.storage.sync when needed.
-let storageArea = chrome.storage.sync || chrome.storage.local;
+const storageArea = chrome.storage.sync || chrome.storage.local;
class ChromePreferences extends BasePreferences {
async _writeToStorage(prefObj) {
return new Promise(resolve => {
if (prefObj === this.defaults) {
- let keysToRemove = Object.keys(this.defaults);
+ const keysToRemove = Object.keys(this.defaults);
// If the storage is reset, remove the keys so that the values from
// managed storage are applied again.
storageArea.remove(keysToRemove, function() {
@@ -331,7 +331,7 @@ class ChromePreferences extends BasePreferences {
async _readFromStorage(prefObj) {
return new Promise(resolve => {
- let getPreferences = defaultPrefs => {
+ const getPreferences = defaultPrefs => {
if (chrome.runtime.lastError) {
// Managed storage not supported, e.g. in Opera.
defaultPrefs = this.defaults;
@@ -349,7 +349,7 @@ class ChromePreferences extends BasePreferences {
// Deprecated preferences are removed from web/default_preferences.json,
// but kept in extensions/chromium/preferences_schema.json for backwards
// compatibility with managed preferences.
- let defaultManagedPrefs = Object.assign(
+ const defaultManagedPrefs = Object.assign(
{
enableHandToolOnLoad: false,
disableTextLayer: false,
@@ -404,9 +404,9 @@ class ChromePreferences extends BasePreferences {
}
}
-let ChromeExternalServices = Object.create(DefaultExternalServices);
+const ChromeExternalServices = Object.create(DefaultExternalServices);
ChromeExternalServices.initPassiveLoading = function(callbacks) {
- let { overlayManager } = PDFViewerApplication;
+ const { overlayManager } = PDFViewerApplication;
// defaultUrl is set in viewer.js
ChromeCom.resolvePDFFile(
AppOptions.get("defaultUrl"),
diff --git a/web/debugger.js b/web/debugger.js
index 6733a14c5..255c4a32c 100644
--- a/web/debugger.js
+++ b/web/debugger.js
@@ -21,20 +21,22 @@ var FontInspector = (function FontInspectorClosure() {
var active = false;
var fontAttribute = "data-font-name";
function removeSelection() {
- let divs = document.querySelectorAll(`span[${fontAttribute}]`);
- for (let div of divs) {
+ const divs = document.querySelectorAll(`span[${fontAttribute}]`);
+ for (const div of divs) {
div.className = "";
}
}
function resetSelection() {
- let divs = document.querySelectorAll(`span[${fontAttribute}]`);
- for (let div of divs) {
+ const divs = document.querySelectorAll(`span[${fontAttribute}]`);
+ for (const div of divs) {
div.className = "debuggerHideText";
}
}
function selectFont(fontName, show) {
- let divs = document.querySelectorAll(`span[${fontAttribute}=${fontName}]`);
- for (let div of divs) {
+ const divs = document.querySelectorAll(
+ `span[${fontAttribute}=${fontName}]`
+ );
+ for (const div of divs) {
div.className = show ? "debuggerShowText" : "debuggerHideText";
}
}
diff --git a/web/download_manager.js b/web/download_manager.js
index 192d7f0f5..5c5401550 100644
--- a/web/download_manager.js
+++ b/web/download_manager.js
@@ -30,7 +30,7 @@ const DISABLE_CREATE_OBJECT_URL =
apiCompatibilityParams.disableCreateObjectURL || false;
function download(blobUrl, filename) {
- let a = document.createElement("a");
+ const a = document.createElement("a");
if (!a.click) {
throw new Error('DownloadManager: "a.click()" is not supported.');
}
@@ -66,7 +66,7 @@ class DownloadManager {
navigator.msSaveBlob(new Blob([data], { type: contentType }), filename);
return;
}
- let blobUrl = createObjectURL(
+ const blobUrl = createObjectURL(
data,
contentType,
this.disableCreateObjectURL
@@ -89,7 +89,7 @@ class DownloadManager {
return;
}
- let blobUrl = URL.createObjectURL(blob);
+ const blobUrl = URL.createObjectURL(blob);
download(blobUrl, filename);
}
}
diff --git a/web/firefox_print_service.js b/web/firefox_print_service.js
index 25574c96b..d2846a676 100644
--- a/web/firefox_print_service.js
+++ b/web/firefox_print_service.js
@@ -20,7 +20,7 @@ import { shadow } from "pdfjs-lib";
// Creates a placeholder with div and canvas with right size for the page.
function composePage(pdfDocument, pageNumber, size, printContainer) {
- let canvas = document.createElement("canvas");
+ const canvas = document.createElement("canvas");
// The size of the canvas in pixels for printing.
const PRINT_RESOLUTION = AppOptions.get("printResolution") || 150;
@@ -32,13 +32,13 @@ function composePage(pdfDocument, pageNumber, size, printContainer) {
canvas.style.width = Math.floor(size.width * CSS_UNITS) + "px";
canvas.style.height = Math.floor(size.height * CSS_UNITS) + "px";
- let canvasWrapper = document.createElement("div");
+ const canvasWrapper = document.createElement("div");
canvasWrapper.appendChild(canvas);
printContainer.appendChild(canvasWrapper);
canvas.mozPrintCallback = function(obj) {
// Printing/rendering the page.
- let ctx = obj.context;
+ const ctx = obj.context;
ctx.save();
ctx.fillStyle = "rgb(255, 255, 255)";
@@ -48,7 +48,7 @@ function composePage(pdfDocument, pageNumber, size, printContainer) {
pdfDocument
.getPage(pageNumber)
.then(function(pdfPage) {
- let renderContext = {
+ const renderContext = {
canvasContext: ctx,
transform: [PRINT_UNITS, 0, 0, PRINT_UNITS, 0, 0],
viewport: pdfPage.getViewport({ scale: 1, rotation: size.rotation }),
@@ -103,8 +103,8 @@ FirefoxPrintService.prototype = {
PDFPrintServiceFactory.instance = {
get supportsPrinting() {
- let canvas = document.createElement("canvas");
- let value = "mozPrintCallback" in canvas;
+ const canvas = document.createElement("canvas");
+ const value = "mozPrintCallback" in canvas;
return shadow(this, "supportsPrinting", value);
},
diff --git a/web/firefoxcom.js b/web/firefoxcom.js
index df580728c..11c5ea575 100644
--- a/web/firefoxcom.js
+++ b/web/firefoxcom.js
@@ -29,7 +29,7 @@ if (
);
}
-let FirefoxCom = (function FirefoxComClosure() {
+const FirefoxCom = (function FirefoxComClosure() {
return {
/**
* Creates an event that the extension is listening for and will
@@ -41,17 +41,17 @@ let FirefoxCom = (function FirefoxComClosure() {
* @returns {*} The response.
*/
requestSync(action, data) {
- let request = document.createTextNode("");
+ const request = document.createTextNode("");
document.documentElement.appendChild(request);
- let sender = document.createEvent("CustomEvent");
+ const sender = document.createEvent("CustomEvent");
sender.initCustomEvent("pdf.js.message", true, false, {
action,
data,
sync: true,
});
request.dispatchEvent(sender);
- let response = sender.detail.response;
+ const response = sender.detail.response;
document.documentElement.removeChild(request);
return response;
},
@@ -65,11 +65,11 @@ let FirefoxCom = (function FirefoxComClosure() {
* with one data argument.
*/
request(action, data, callback) {
- let request = document.createTextNode("");
+ const request = document.createTextNode("");
if (callback) {
document.addEventListener("pdf.js.response", function listener(event) {
- let node = event.target;
- let response = event.detail.response;
+ const node = event.target;
+ const response = event.detail.response;
document.documentElement.removeChild(node);
@@ -79,7 +79,7 @@ let FirefoxCom = (function FirefoxComClosure() {
}
document.documentElement.appendChild(request);
- let sender = document.createEvent("CustomEvent");
+ const sender = document.createEvent("CustomEvent");
sender.initCustomEvent("pdf.js.message", true, false, {
action,
data,
@@ -104,7 +104,7 @@ class DownloadManager {
}
downloadData(data, filename, contentType) {
- let blobUrl = createObjectURL(data, contentType);
+ const blobUrl = createObjectURL(data, contentType);
FirefoxCom.request("download", {
blobUrl,
@@ -115,8 +115,8 @@ class DownloadManager {
}
download(blob, url, filename) {
- let blobUrl = URL.createObjectURL(blob);
- let onResponse = err => {
+ const blobUrl = URL.createObjectURL(blob);
+ const onResponse = err => {
if (err && this.onerror) {
this.onerror(err);
}
@@ -145,7 +145,7 @@ class FirefoxPreferences extends BasePreferences {
async _readFromStorage(prefObj) {
return new Promise(function(resolve) {
FirefoxCom.request("getPreferences", prefObj, function(prefStr) {
- let readPrefs = JSON.parse(prefStr);
+ const readPrefs = JSON.parse(prefStr);
resolve(readPrefs);
});
});
@@ -259,7 +259,7 @@ PDFViewerApplication.externalServices = {
console.warn("Rejected untrusted message from " + e.origin);
return;
}
- let args = e.data;
+ const args = e.data;
if (typeof args !== "object" || !("pdfjsLoadAction" in args)) {
return;
@@ -328,28 +328,30 @@ PDFViewerApplication.externalServices = {
},
createL10n(options) {
- let mozL10n = document.mozL10n;
+ const mozL10n = document.mozL10n;
// TODO refactor mozL10n.setExternalLocalizerServices
return new MozL10n(mozL10n);
},
get supportsIntegratedFind() {
- let support = FirefoxCom.requestSync("supportsIntegratedFind");
+ const support = FirefoxCom.requestSync("supportsIntegratedFind");
return shadow(this, "supportsIntegratedFind", support);
},
get supportsDocumentFonts() {
- let support = FirefoxCom.requestSync("supportsDocumentFonts");
+ const support = FirefoxCom.requestSync("supportsDocumentFonts");
return shadow(this, "supportsDocumentFonts", support);
},
get supportsDocumentColors() {
- let support = FirefoxCom.requestSync("supportsDocumentColors");
+ const support = FirefoxCom.requestSync("supportsDocumentColors");
return shadow(this, "supportsDocumentColors", support);
},
get supportedMouseWheelZoomModifierKeys() {
- let support = FirefoxCom.requestSync("supportedMouseWheelZoomModifierKeys");
+ const support = FirefoxCom.requestSync(
+ "supportedMouseWheelZoomModifierKeys"
+ );
return shadow(this, "supportedMouseWheelZoomModifierKeys", support);
},
};
diff --git a/web/genericcom.js b/web/genericcom.js
index 446458214..3fc0eda00 100644
--- a/web/genericcom.js
+++ b/web/genericcom.js
@@ -25,7 +25,7 @@ if (typeof PDFJSDev !== "undefined" && !PDFJSDev.test("GENERIC")) {
);
}
-let GenericCom = {};
+const GenericCom = {};
class GenericPreferences extends BasePreferences {
async _writeToStorage(prefObj) {
@@ -37,7 +37,7 @@ class GenericPreferences extends BasePreferences {
}
}
-let GenericExternalServices = Object.create(DefaultExternalServices);
+const GenericExternalServices = Object.create(DefaultExternalServices);
GenericExternalServices.createDownloadManager = function(options) {
return new DownloadManager(options);
};
diff --git a/web/genericl10n.js b/web/genericl10n.js
index 785c931b7..dae376505 100644
--- a/web/genericl10n.js
+++ b/web/genericl10n.js
@@ -15,7 +15,7 @@
import "../external/webL10n/l10n";
-let webL10n = document.webL10n;
+const webL10n = document.webL10n;
class GenericL10n {
constructor(lang) {
diff --git a/web/password_prompt.js b/web/password_prompt.js
index 1706fec8d..29fae9609 100644
--- a/web/password_prompt.js
+++ b/web/password_prompt.js
@@ -97,7 +97,7 @@ class PasswordPrompt {
}
verify() {
- let password = this.input.value;
+ const password = this.input.value;
if (password && password.length > 0) {
this.close();
this.updateCallback(password);
diff --git a/web/pdf_attachment_viewer.js b/web/pdf_attachment_viewer.js
index b36e49e54..61b11a238 100644
--- a/web/pdf_attachment_viewer.js
+++ b/web/pdf_attachment_viewer.js
@@ -135,18 +135,18 @@ class PDFAttachmentViewer {
return;
}
- let names = Object.keys(attachments).sort(function(a, b) {
+ const names = Object.keys(attachments).sort(function(a, b) {
return a.toLowerCase().localeCompare(b.toLowerCase());
});
attachmentsCount = names.length;
for (let i = 0; i < attachmentsCount; i++) {
- let item = attachments[names[i]];
- let filename = removeNullCharacters(getFilenameFromUrl(item.filename));
+ const item = attachments[names[i]];
+ const filename = removeNullCharacters(getFilenameFromUrl(item.filename));
- let div = document.createElement("div");
+ const div = document.createElement("div");
div.className = "attachmentsItem";
- let button = document.createElement("button");
+ const button = document.createElement("button");
button.textContent = filename;
if (
/\.pdf$/i.test(filename) &&
@@ -175,7 +175,7 @@ class PDFAttachmentViewer {
if (!attachments) {
attachments = Object.create(null);
} else {
- for (let name in attachments) {
+ for (const name in attachments) {
if (id === name) {
return; // Ignore the new attachment if it already exists.
}
diff --git a/web/pdf_cursor_tools.js b/web/pdf_cursor_tools.js
index a99f34f53..e8b45f5b4 100644
--- a/web/pdf_cursor_tools.js
+++ b/web/pdf_cursor_tools.js
@@ -74,7 +74,7 @@ class PDFCursorTools {
return; // The requested tool is already active.
}
- let disableActiveTool = () => {
+ const disableActiveTool = () => {
switch (this.active) {
case CursorTool.SELECT:
break;
diff --git a/web/pdf_document_properties.js b/web/pdf_document_properties.js
index a7cfd8e80..120806a70 100644
--- a/web/pdf_document_properties.js
+++ b/web/pdf_document_properties.js
@@ -102,7 +102,7 @@ class PDFDocumentProperties {
* Open the document properties overlay.
*/
open() {
- let freezeFieldData = data => {
+ const freezeFieldData = data => {
Object.defineProperty(this, "fieldData", {
value: Object.freeze(data),
writable: false,
@@ -193,7 +193,7 @@ class PDFDocumentProperties {
if (fileSize === this.fieldData["fileSize"]) {
return; // The fileSize has already been correctly set.
}
- let data = Object.assign(Object.create(null), this.fieldData);
+ const data = Object.assign(Object.create(null), this.fieldData);
data["fileSize"] = fileSize;
freezeFieldData(data);
@@ -267,7 +267,7 @@ class PDFDocumentProperties {
*/
_updateUI(reset = false) {
if (reset || !this.fieldData) {
- for (let id in this.fields) {
+ for (const id in this.fields) {
this.fields[id].textContent = DEFAULT_FIELD_CONTENT;
}
return;
@@ -277,8 +277,8 @@ class PDFDocumentProperties {
// since it will be updated the next time `this.open` is called.
return;
}
- for (let id in this.fields) {
- let content = this.fieldData[id];
+ for (const id in this.fields) {
+ const content = this.fieldData[id];
this.fields[id].textContent =
content || content === 0 ? content : DEFAULT_FIELD_CONTENT;
}
@@ -288,7 +288,7 @@ class PDFDocumentProperties {
* @private
*/
async _parseFileSize(fileSize = 0) {
- let kb = fileSize / 1024;
+ const kb = fileSize / 1024;
if (!kb) {
return undefined;
} else if (kb < 1024) {
diff --git a/web/pdf_find_bar.js b/web/pdf_find_bar.js
index 1d7c0682c..c71dfe9d5 100644
--- a/web/pdf_find_bar.js
+++ b/web/pdf_find_bar.js
@@ -255,8 +255,8 @@ class PDFFindBar {
// wrapped). Here we detect and fix that.
this.bar.classList.remove("wrapContainers");
- let findbarHeight = this.bar.clientHeight;
- let inputContainerHeight = this.bar.firstElementChild.clientHeight;
+ const findbarHeight = this.bar.clientHeight;
+ const inputContainerHeight = this.bar.firstElementChild.clientHeight;
if (findbarHeight > inputContainerHeight) {
// The findbar is taller than the input container, which means that
diff --git a/web/pdf_history.js b/web/pdf_history.js
index 20d736d61..970966ace 100644
--- a/web/pdf_history.js
+++ b/web/pdf_history.js
@@ -136,7 +136,7 @@ class PDFHistory {
// The browser history contains a valid entry, ensure that the history is
// initialized correctly on PDF document load.
- let destination = state.destination;
+ const destination = state.destination;
this._updateInternalState(
destination,
state.uid,
@@ -221,7 +221,7 @@ class PDFHistory {
}
}
- let hash = namedDest || JSON.stringify(explicitDest);
+ const hash = namedDest || JSON.stringify(explicitDest);
if (!hash) {
// The hash *should* never be undefined, but if that were to occur,
// avoid any possible issues by not updating the browser history.
@@ -288,7 +288,7 @@ class PDFHistory {
if (!this._initialized || this._popStateInProgress) {
return;
}
- let state = window.history.state;
+ const state = window.history.state;
if (this._isValidState(state) && state.uid > 0) {
window.history.back();
}
@@ -302,7 +302,7 @@ class PDFHistory {
if (!this._initialized || this._popStateInProgress) {
return;
}
- let state = window.history.state;
+ const state = window.history.state;
if (this._isValidState(state) && state.uid < this._maxUid) {
window.history.forward();
}
@@ -331,8 +331,8 @@ class PDFHistory {
* @private
*/
_pushOrReplaceState(destination, forceReplace = false) {
- let shouldReplace = forceReplace || !this._destination;
- let newState = {
+ const shouldReplace = forceReplace || !this._destination;
+ const newState = {
fingerprint: this._fingerprint,
uid: shouldReplace ? this._uid : this._uid + 1,
destination,
@@ -575,7 +575,7 @@ class PDFHistory {
* @private
*/
_popState({ state }) {
- let newHash = getCurrentHash(),
+ const newHash = getCurrentHash(),
hashChanged = this._currentHash !== newHash;
this._currentHash = newHash;
@@ -628,7 +628,7 @@ class PDFHistory {
}
// Navigate to the new destination.
- let destination = state.destination;
+ const destination = state.destination;
this._updateInternalState(
destination,
state.uid,
@@ -711,7 +711,7 @@ function isDestHashesEqual(destHash, pushHash) {
if (destHash === pushHash) {
return true;
}
- let { nameddest } = parseQueryString(destHash);
+ const { nameddest } = parseQueryString(destHash);
if (nameddest === pushHash) {
return true;
}
@@ -730,7 +730,7 @@ function isDestArraysEqual(firstDest, secondDest) {
if (Object.keys(first).length !== Object.keys(second).length) {
return false;
}
- for (let key in first) {
+ for (const key in first) {
if (!isEntryEqual(first[key], second[key])) {
return false;
}
diff --git a/web/pdf_link_service.js b/web/pdf_link_service.js
index b34643f9d..a8d2359d9 100644
--- a/web/pdf_link_service.js
+++ b/web/pdf_link_service.js
@@ -106,7 +106,7 @@ class PDFLinkService {
* @param {string|Array} dest - The named, or explicit, PDF destination.
*/
navigateTo(dest) {
- let goToDestination = ({ namedDest, explicitDest }) => {
+ const goToDestination = ({ namedDest, explicitDest }) => {
// Dest array looks like that:
let destRef = explicitDest[0],
pageNumber;
@@ -196,7 +196,7 @@ class PDFLinkService {
return this.getAnchorUrl("#" + escape(dest));
}
if (Array.isArray(dest)) {
- let str = JSON.stringify(dest);
+ const str = JSON.stringify(dest);
return this.getAnchorUrl("#" + escape(str));
}
return this.getAnchorUrl("");
@@ -218,7 +218,7 @@ class PDFLinkService {
setHash(hash) {
let pageNumber, dest;
if (hash.includes("=")) {
- let params = parseQueryString(hash);
+ const params = parseQueryString(hash);
if ("search" in params) {
this.eventBus.dispatch("findfromurlhash", {
source: this,
@@ -236,9 +236,9 @@ class PDFLinkService {
}
if ("zoom" in params) {
// Build the destination array.
- let zoomArgs = params.zoom.split(","); // scale,left,top
- let zoomArg = zoomArgs[0];
- let zoomArgNumber = parseFloat(zoomArg);
+ const zoomArgs = params.zoom.split(","); // scale,left,top
+ const zoomArg = zoomArgs[0];
+ const zoomArgNumber = parseFloat(zoomArg);
if (!zoomArg.includes("Fit")) {
// If the zoomArg is a number, it has to get divided by 100. If it's
@@ -410,7 +410,7 @@ function isValidExplicitDestination(dest) {
if (destLength < 2) {
return false;
}
- let page = dest[0];
+ const page = dest[0];
if (
!(
typeof page === "object" &&
@@ -421,7 +421,7 @@ function isValidExplicitDestination(dest) {
) {
return false;
}
- let zoom = dest[1];
+ const zoom = dest[1];
if (!(typeof zoom === "object" && typeof zoom.name === "string")) {
return false;
}
@@ -452,7 +452,7 @@ function isValidExplicitDestination(dest) {
return false;
}
for (let i = 2; i < destLength; i++) {
- let param = dest[i];
+ const param = dest[i];
if (!(typeof param === "number" || (allowNull && param === null))) {
return false;
}
diff --git a/web/pdf_outline_viewer.js b/web/pdf_outline_viewer.js
index d0adae489..bf2f058c5 100644
--- a/web/pdf_outline_viewer.js
+++ b/web/pdf_outline_viewer.js
@@ -69,7 +69,7 @@ class PDFOutlineViewer {
* @private
*/
_bindLink(element, { url, newWindow, dest }) {
- let { linkService } = this;
+ const { linkService } = this;
if (url) {
addLinkAttributes(element, {
@@ -114,7 +114,7 @@ class PDFOutlineViewer {
* @private
*/
_addToggleButton(div, { count, items }) {
- let toggler = document.createElement("div");
+ const toggler = document.createElement("div");
toggler.className = "outlineItemToggler";
if (count < 0 && Math.abs(count) === items.length) {
toggler.classList.add("outlineItemsHidden");
@@ -124,7 +124,7 @@ class PDFOutlineViewer {
toggler.classList.toggle("outlineItemsHidden");
if (evt.shiftKey) {
- let shouldShowAll = !toggler.classList.contains("outlineItemsHidden");
+ const shouldShowAll = !toggler.classList.contains("outlineItemsHidden");
this._toggleOutlineItem(div, shouldShowAll);
}
};
@@ -173,16 +173,16 @@ class PDFOutlineViewer {
return;
}
- let fragment = document.createDocumentFragment();
- let queue = [{ parent: fragment, items: this.outline }];
+ const fragment = document.createDocumentFragment();
+ const queue = [{ parent: fragment, items: this.outline }];
let hasAnyNesting = false;
while (queue.length > 0) {
const levelData = queue.shift();
for (const item of levelData.items) {
- let div = document.createElement("div");
+ const div = document.createElement("div");
div.className = "outlineItem";
- let element = document.createElement("a");
+ const element = document.createElement("a");
this._bindLink(element, item);
this._setStyles(element, item);
element.textContent = removeNullCharacters(item.title) || DEFAULT_TITLE;
@@ -193,7 +193,7 @@ class PDFOutlineViewer {
hasAnyNesting = true;
this._addToggleButton(div, item);
- let itemsDiv = document.createElement("div");
+ const itemsDiv = document.createElement("div");
itemsDiv.className = "outlineItems";
div.appendChild(itemsDiv);
queue.push({ parent: itemsDiv, items: item.items });
diff --git a/web/pdf_page_view.js b/web/pdf_page_view.js
index 3c09cb7f1..e2209bd7c 100644
--- a/web/pdf_page_view.js
+++ b/web/pdf_page_view.js
@@ -71,8 +71,8 @@ class PDFPageView {
* @param {PDFPageViewOptions} options
*/
constructor(options) {
- let container = options.container;
- let defaultViewport = options.defaultViewport;
+ const container = options.container;
+ const defaultViewport = options.defaultViewport;
this.id = options.id;
this.renderingId = "page" + this.id;
@@ -110,7 +110,7 @@ class PDFPageView {
this.textLayer = null;
this.zoomLayer = null;
- let div = document.createElement("div");
+ const div = document.createElement("div");
div.className = "page";
div.style.width = Math.floor(this.viewport.width) + "px";
div.style.height = Math.floor(this.viewport.height) + "px";
@@ -124,7 +124,7 @@ class PDFPageView {
this.pdfPage = pdfPage;
this.pdfPageRotate = pdfPage.rotate;
- let totalRotation = (this.rotation + this.pdfPageRotate) % 360;
+ const totalRotation = (this.rotation + this.pdfPageRotate) % 360;
this.viewport = pdfPage.getViewport({
scale: this.scale * CSS_UNITS,
rotation: totalRotation,
@@ -147,7 +147,7 @@ class PDFPageView {
if (!this.zoomLayer) {
return;
}
- let zoomLayerCanvas = this.zoomLayer.firstChild;
+ const zoomLayerCanvas = this.zoomLayer.firstChild;
this.paintedViewportMap.delete(zoomLayerCanvas);
// Zeroing the width and height causes Firefox to release graphics
// resources immediately, which can greatly reduce memory consumption.
@@ -165,17 +165,17 @@ class PDFPageView {
this.cancelRendering(keepAnnotations);
this.renderingState = RenderingStates.INITIAL;
- let div = this.div;
+ const div = this.div;
div.style.width = Math.floor(this.viewport.width) + "px";
div.style.height = Math.floor(this.viewport.height) + "px";
- let childNodes = div.childNodes;
- let currentZoomLayerNode = (keepZoomLayer && this.zoomLayer) || null;
- let currentAnnotationNode =
+ const childNodes = div.childNodes;
+ const currentZoomLayerNode = (keepZoomLayer && this.zoomLayer) || null;
+ const currentAnnotationNode =
(keepAnnotations && this.annotationLayer && this.annotationLayer.div) ||
null;
for (let i = childNodes.length - 1; i >= 0; i--) {
- let node = childNodes[i];
+ const node = childNodes[i];
if (currentZoomLayerNode === node || currentAnnotationNode === node) {
continue;
}
@@ -220,7 +220,7 @@ class PDFPageView {
this.rotation = rotation;
}
- let totalRotation = (this.rotation + this.pdfPageRotate) % 360;
+ const totalRotation = (this.rotation + this.pdfPageRotate) % 360;
this.viewport = this.viewport.clone({
scale: this.scale * CSS_UNITS,
rotation: totalRotation,
@@ -240,7 +240,7 @@ class PDFPageView {
let isScalingRestricted = false;
if (this.canvas && this.maxCanvasPixels > 0) {
- let outputScale = this.outputScale;
+ const outputScale = this.outputScale;
if (
((Math.floor(this.viewport.width) * outputScale.sx) | 0) *
((Math.floor(this.viewport.height) * outputScale.sy) | 0) >
@@ -299,17 +299,17 @@ class PDFPageView {
cssTransform(target, redrawAnnotations = false) {
// Scale target (canvas or svg), its wrapper and page container.
- let width = this.viewport.width;
- let height = this.viewport.height;
- let div = this.div;
+ const width = this.viewport.width;
+ const height = this.viewport.height;
+ const div = this.div;
target.style.width = target.parentNode.style.width = div.style.width =
Math.floor(width) + "px";
target.style.height = target.parentNode.style.height = div.style.height =
Math.floor(height) + "px";
// The canvas may have been originally rotated; rotate relative to that.
- let relativeRotation =
+ const relativeRotation =
this.viewport.rotation - this.paintedViewportMap.get(target).rotation;
- let absRotation = Math.abs(relativeRotation);
+ const absRotation = Math.abs(relativeRotation);
let scaleX = 1,
scaleY = 1;
if (absRotation === 90 || absRotation === 270) {
@@ -317,7 +317,7 @@ class PDFPageView {
scaleX = height / width;
scaleY = width / height;
}
- let cssTransform =
+ const cssTransform =
"rotate(" +
relativeRotation +
"deg) " +
@@ -333,15 +333,15 @@ class PDFPageView {
// the text layer are rotated.
// TODO: This could probably be simplified by drawing the text layer in
// one orientation and then rotating overall.
- let textLayerViewport = this.textLayer.viewport;
- let textRelativeRotation =
+ const textLayerViewport = this.textLayer.viewport;
+ const textRelativeRotation =
this.viewport.rotation - textLayerViewport.rotation;
- let textAbsRotation = Math.abs(textRelativeRotation);
+ const textAbsRotation = Math.abs(textRelativeRotation);
let scale = width / textLayerViewport.width;
if (textAbsRotation === 90 || textAbsRotation === 270) {
scale = width / textLayerViewport.height;
}
- let textLayerDiv = this.textLayer.textLayerDiv;
+ const textLayerDiv = this.textLayer.textLayerDiv;
let transX, transY;
switch (textAbsRotation) {
case 0:
@@ -411,11 +411,11 @@ class PDFPageView {
this.renderingState = RenderingStates.RUNNING;
- let pdfPage = this.pdfPage;
- let div = this.div;
+ const pdfPage = this.pdfPage;
+ const div = this.div;
// Wrap the canvas so that if it has a CSS transform for high DPI the
// overflow will be hidden in Firefox.
- let canvasWrapper = document.createElement("div");
+ const canvasWrapper = document.createElement("div");
canvasWrapper.style.width = div.style.width;
canvasWrapper.style.height = div.style.height;
canvasWrapper.classList.add("canvasWrapper");
@@ -429,7 +429,7 @@ class PDFPageView {
let textLayer = null;
if (this.textLayerMode !== TextLayerMode.DISABLE && this.textLayerFactory) {
- let textLayerDiv = document.createElement("div");
+ const textLayerDiv = document.createElement("div");
textLayerDiv.className = "textLayer";
textLayerDiv.style.width = canvasWrapper.style.width;
textLayerDiv.style.height = canvasWrapper.style.height;
@@ -500,18 +500,18 @@ class PDFPageView {
}
};
- let paintTask =
+ const paintTask =
this.renderer === RendererType.SVG
? this.paintOnSvg(canvasWrapper)
: this.paintOnCanvas(canvasWrapper);
paintTask.onRenderContinue = renderContinueCallback;
this.paintTask = paintTask;
- let resultPromise = paintTask.promise.then(
+ const resultPromise = paintTask.promise.then(
function() {
return finishPaintTask(null).then(function() {
if (textLayer) {
- let readableStream = pdfPage.streamTextContent({
+ const readableStream = pdfPage.streamTextContent({
normalizeWhitespace: true,
});
textLayer.setTextContentStream(readableStream);
@@ -546,8 +546,8 @@ class PDFPageView {
}
paintOnCanvas(canvasWrapper) {
- let renderCapability = createPromiseCapability();
- let result = {
+ const renderCapability = createPromiseCapability();
+ const result = {
promise: renderCapability.promise,
onRenderContinue(cont) {
cont();
@@ -557,15 +557,15 @@ class PDFPageView {
},
};
- let viewport = this.viewport;
- let canvas = document.createElement("canvas");
+ const viewport = this.viewport;
+ const canvas = document.createElement("canvas");
canvas.id = this.renderingId;
// Keep the canvas hidden until the first draw callback, or until drawing
// is complete when `!this.renderingQueue`, to prevent black flickering.
canvas.setAttribute("hidden", "hidden");
let isCanvasHidden = true;
- let showCanvas = function() {
+ const showCanvas = function() {
if (isCanvasHidden) {
canvas.removeAttribute("hidden");
isCanvasHidden = false;
@@ -582,12 +582,12 @@ class PDFPageView {
canvas.mozOpaque = true;
}
- let ctx = canvas.getContext("2d", { alpha: false });
- let outputScale = getOutputScale(ctx);
+ const ctx = canvas.getContext("2d", { alpha: false });
+ const outputScale = getOutputScale(ctx);
this.outputScale = outputScale;
if (this.useOnlyCssZoom) {
- let actualSizeViewport = viewport.clone({ scale: CSS_UNITS });
+ const actualSizeViewport = viewport.clone({ scale: CSS_UNITS });
// Use a scale that makes the canvas have the originally intended size
// of the page.
outputScale.sx *= actualSizeViewport.width / viewport.width;
@@ -596,8 +596,8 @@ class PDFPageView {
}
if (this.maxCanvasPixels > 0) {
- let pixelsInViewport = viewport.width * viewport.height;
- let maxScale = Math.sqrt(this.maxCanvasPixels / pixelsInViewport);
+ const pixelsInViewport = viewport.width * viewport.height;
+ const maxScale = Math.sqrt(this.maxCanvasPixels / pixelsInViewport);
if (outputScale.sx > maxScale || outputScale.sy > maxScale) {
outputScale.sx = maxScale;
outputScale.sy = maxScale;
@@ -608,8 +608,8 @@ class PDFPageView {
}
}
- let sfx = approximateFraction(outputScale.sx);
- let sfy = approximateFraction(outputScale.sy);
+ const sfx = approximateFraction(outputScale.sx);
+ const sfy = approximateFraction(outputScale.sy);
canvas.width = roundToDivide(viewport.width * outputScale.sx, sfx[0]);
canvas.height = roundToDivide(viewport.height * outputScale.sy, sfy[0]);
canvas.style.width = roundToDivide(viewport.width, sfx[1]) + "px";
@@ -618,17 +618,17 @@ class PDFPageView {
this.paintedViewportMap.set(canvas, viewport);
// Rendering area
- let transform = !outputScale.scaled
+ const transform = !outputScale.scaled
? null
: [outputScale.sx, 0, 0, outputScale.sy, 0, 0];
- let renderContext = {
+ const renderContext = {
canvasContext: ctx,
transform,
viewport: this.viewport,
enableWebGL: this.enableWebGL,
renderInteractiveForms: this.renderInteractiveForms,
};
- let renderTask = this.pdfPage.render(renderContext);
+ const renderTask = this.pdfPage.render(renderContext);
renderTask.onContinue = function(cont) {
showCanvas();
if (result.onRenderContinue) {
@@ -666,7 +666,7 @@ class PDFPageView {
}
let cancelled = false;
- let ensureNotCancelled = () => {
+ const ensureNotCancelled = () => {
if (cancelled) {
throw new RenderingCancelledException(
"Rendering cancelled, page " + this.id,
@@ -675,11 +675,11 @@ class PDFPageView {
}
};
- let pdfPage = this.pdfPage;
- let actualSizeViewport = this.viewport.clone({ scale: CSS_UNITS });
- let promise = pdfPage.getOperatorList().then(opList => {
+ const pdfPage = this.pdfPage;
+ const actualSizeViewport = this.viewport.clone({ scale: CSS_UNITS });
+ const promise = pdfPage.getOperatorList().then(opList => {
ensureNotCancelled();
- let svgGfx = new SVGGraphics(pdfPage.commonObjs, pdfPage.objs);
+ const svgGfx = new SVGGraphics(pdfPage.commonObjs, pdfPage.objs);
return svgGfx.getSVG(opList, actualSizeViewport).then(svg => {
ensureNotCancelled();
this.svg = svg;
diff --git a/web/pdf_presentation_mode.js b/web/pdf_presentation_mode.js
index 991334fd1..f85deb2fe 100644
--- a/web/pdf_presentation_mode.js
+++ b/web/pdf_presentation_mode.js
@@ -116,9 +116,9 @@ class PDFPresentationMode {
evt.preventDefault();
- let delta = normalizeWheelEventDelta(evt);
- let currentTime = new Date().getTime();
- let storedTime = this.mouseScrollTimeStamp;
+ const delta = normalizeWheelEventDelta(evt);
+ const currentTime = new Date().getTime();
+ const storedTime = this.mouseScrollTimeStamp;
// If we've already switched page, avoid accidentally switching again.
if (
@@ -137,9 +137,9 @@ class PDFPresentationMode {
this.mouseScrollDelta += delta;
if (Math.abs(this.mouseScrollDelta) >= PAGE_SWITCH_THRESHOLD) {
- let totalDelta = this.mouseScrollDelta;
+ const totalDelta = this.mouseScrollDelta;
this._resetMouseScrollState();
- let success =
+ const success =
totalDelta > 0 ? this._goToPreviousPage() : this._goToNextPage();
if (success) {
this.mouseScrollTimeStamp = currentTime;
@@ -160,7 +160,7 @@ class PDFPresentationMode {
* @private
*/
_goToPreviousPage() {
- let page = this.pdfViewer.currentPageNumber;
+ const page = this.pdfViewer.currentPageNumber;
// If we're at the first page, we don't need to do anything.
if (page <= 1) {
return false;
@@ -173,7 +173,7 @@ class PDFPresentationMode {
* @private
*/
_goToNextPage() {
- let page = this.pdfViewer.currentPageNumber;
+ const page = this.pdfViewer.currentPageNumber;
// If we're at the last page, we don't need to do anything.
if (page >= this.pdfViewer.pagesCount) {
return false;
@@ -254,7 +254,7 @@ class PDFPresentationMode {
* @private
*/
_exit() {
- let page = this.pdfViewer.currentPageNumber;
+ const page = this.pdfViewer.currentPageNumber;
this.container.classList.remove(ACTIVE_SELECTOR);
// Ensure that the correct page is scrolled into view when exiting
@@ -288,7 +288,7 @@ class PDFPresentationMode {
if (evt.button === 0) {
// Enable clicking of links in presentation mode. Note: only links
// pointing to destinations in the current PDF document work.
- let isInternalLink =
+ const isInternalLink =
evt.target.href && evt.target.classList.contains("internalLink");
if (!isInternalLink) {
// Unless an internal link was clicked, advance one page.
@@ -384,9 +384,9 @@ class PDFPresentationMode {
return;
}
let delta = 0;
- let dx = this.touchSwipeState.endX - this.touchSwipeState.startX;
- let dy = this.touchSwipeState.endY - this.touchSwipeState.startY;
- let absAngle = Math.abs(Math.atan2(dy, dx));
+ const dx = this.touchSwipeState.endX - this.touchSwipeState.startX;
+ const dy = this.touchSwipeState.endY - this.touchSwipeState.startY;
+ const absAngle = Math.abs(Math.atan2(dy, dx));
if (
Math.abs(dx) > SWIPE_MIN_DISTANCE_THRESHOLD &&
(absAngle <= SWIPE_ANGLE_THRESHOLD ||
diff --git a/web/pdf_print_service.js b/web/pdf_print_service.js
index 000b2a9c2..96613fc07 100644
--- a/web/pdf_print_service.js
+++ b/web/pdf_print_service.js
@@ -23,7 +23,7 @@ let overlayManager = null;
// Renders the page to the canvas of the given print service, and returns
// the suggested dimensions of the output page.
function renderPage(activeServiceOnEntry, pdfDocument, pageNumber, size) {
- let scratchCanvas = activeService.scratchCanvas;
+ const scratchCanvas = activeService.scratchCanvas;
// The size of the canvas in pixels for printing.
const PRINT_RESOLUTION = AppOptions.get("printResolution") || 150;
@@ -32,10 +32,10 @@ function renderPage(activeServiceOnEntry, pdfDocument, pageNumber, size) {
scratchCanvas.height = Math.floor(size.height * PRINT_UNITS);
// The physical size of the img as specified by the PDF document.
- let width = Math.floor(size.width * CSS_UNITS) + "px";
- let height = Math.floor(size.height * CSS_UNITS) + "px";
+ const width = Math.floor(size.width * CSS_UNITS) + "px";
+ const height = Math.floor(size.height * CSS_UNITS) + "px";
- let ctx = scratchCanvas.getContext("2d");
+ const ctx = scratchCanvas.getContext("2d");
ctx.save();
ctx.fillStyle = "rgb(255, 255, 255)";
ctx.fillRect(0, 0, scratchCanvas.width, scratchCanvas.height);
@@ -44,7 +44,7 @@ function renderPage(activeServiceOnEntry, pdfDocument, pageNumber, size) {
return pdfDocument
.getPage(pageNumber)
.then(function(pdfPage) {
- let renderContext = {
+ const renderContext = {
canvasContext: ctx,
transform: [PRINT_UNITS, 0, 0, PRINT_UNITS, 0, 0],
viewport: pdfPage.getViewport({ scale: 1, rotation: size.rotation }),
@@ -79,7 +79,7 @@ PDFPrintService.prototype = {
const body = document.querySelector("body");
body.setAttribute("data-pdfjsprinting", true);
- let hasEqualPageSizes = this.pagesOverview.every(function(size) {
+ const hasEqualPageSizes = this.pagesOverview.every(function(size) {
return (
size.width === this.pagesOverview[0].width &&
size.height === this.pagesOverview[0].height
@@ -102,7 +102,7 @@ PDFPrintService.prototype = {
// https://bugzil.la/851441), the next stylesheet will be ignored and the
// user has to select the correct paper size in the UI if wanted.
this.pageStyleSheet = document.createElement("style");
- let pageSize = this.pagesOverview[0];
+ const pageSize = this.pagesOverview[0];
this.pageStyleSheet.textContent =
// "size: " is what we need. But also add "A4" because
// Firefox incorrectly reports support for the other value.
@@ -144,15 +144,15 @@ PDFPrintService.prototype = {
},
renderPages() {
- let pageCount = this.pagesOverview.length;
- let renderNextPage = (resolve, reject) => {
+ const pageCount = this.pagesOverview.length;
+ const renderNextPage = (resolve, reject) => {
this.throwIfInactive();
if (++this.currentPage >= pageCount) {
renderProgress(pageCount, pageCount, this.l10n);
resolve();
return;
}
- let index = this.currentPage;
+ const index = this.currentPage;
renderProgress(index, pageCount, this.l10n);
renderPage(this, this.pdfDocument, index + 1, this.pagesOverview[index])
.then(this.useRenderedPage.bind(this))
@@ -165,11 +165,11 @@ PDFPrintService.prototype = {
useRenderedPage(printItem) {
this.throwIfInactive();
- let img = document.createElement("img");
+ const img = document.createElement("img");
img.style.width = printItem.width;
img.style.height = printItem.height;
- let scratchCanvas = this.scratchCanvas;
+ const scratchCanvas = this.scratchCanvas;
if ("toBlob" in scratchCanvas && !this.disableCreateObjectURL) {
scratchCanvas.toBlob(function(blob) {
img.src = URL.createObjectURL(blob);
@@ -178,7 +178,7 @@ PDFPrintService.prototype = {
img.src = scratchCanvas.toDataURL();
}
- let wrapper = document.createElement("div");
+ const wrapper = document.createElement("div");
wrapper.appendChild(img);
this.printContainer.appendChild(wrapper);
@@ -217,7 +217,7 @@ PDFPrintService.prototype = {
},
};
-let print = window.print;
+const print = window.print;
window.print = function print() {
if (activeService) {
console.warn("Ignored window.print() because of a pending print job.");
@@ -241,7 +241,7 @@ window.print = function print() {
});
return; // eslint-disable-line no-unsafe-finally
}
- let activeServiceOnEntry = activeService;
+ const activeServiceOnEntry = activeService;
activeService
.renderPages()
.then(function() {
@@ -264,7 +264,7 @@ window.print = function print() {
};
function dispatchEvent(eventType) {
- let event = document.createEvent("CustomEvent");
+ const event = document.createEvent("CustomEvent");
event.initCustomEvent(eventType, false, false, "custom");
window.dispatchEvent(event);
}
@@ -277,10 +277,10 @@ function abort() {
}
function renderProgress(index, total, l10n) {
- let progressContainer = document.getElementById("printServiceOverlay");
- let progress = Math.round((100 * index) / total);
- let progressBar = progressContainer.querySelector("progress");
- let progressPerc = progressContainer.querySelector(".relative-progress");
+ const progressContainer = document.getElementById("printServiceOverlay");
+ const progress = Math.round((100 * index) / total);
+ const progressBar = progressContainer.querySelector("progress");
+ const progressPerc = progressContainer.querySelector(".relative-progress");
progressBar.value = progress;
l10n.get("print_progress_percent", { progress }, progress + "%").then(msg => {
progressPerc.textContent = msg;
@@ -316,7 +316,7 @@ window.addEventListener(
if ("onbeforeprint" in window) {
// Do not propagate before/afterprint events when they are not triggered
// from within this polyfill. (FF /IE / Chrome 63+).
- let stopPropagationIfNeeded = function(event) {
+ const stopPropagationIfNeeded = function(event) {
if (event.detail !== "custom" && event.stopImmediatePropagation) {
event.stopImmediatePropagation();
}
diff --git a/web/pdf_rendering_queue.js b/web/pdf_rendering_queue.js
index f9d015193..f4d9c4f46 100644
--- a/web/pdf_rendering_queue.js
+++ b/web/pdf_rendering_queue.js
@@ -103,14 +103,14 @@ class PDFRenderingQueue {
* 2. if last scrolled down, the page after the visible pages, or
* if last scrolled up, the page before the visible pages
*/
- let visibleViews = visible.views;
+ const visibleViews = visible.views;
- let numVisible = visibleViews.length;
+ const numVisible = visibleViews.length;
if (numVisible === 0) {
return null;
}
for (let i = 0; i < numVisible; ++i) {
- let view = visibleViews[i].view;
+ const view = visibleViews[i].view;
if (!this.isViewFinished(view)) {
return view;
}
@@ -118,13 +118,13 @@ class PDFRenderingQueue {
// All the visible views have rendered; try to render next/previous pages.
if (scrolledDown) {
- let nextPageIndex = visible.last.id;
+ const nextPageIndex = visible.last.id;
// IDs start at 1, so no need to add 1.
if (views[nextPageIndex] && !this.isViewFinished(views[nextPageIndex])) {
return views[nextPageIndex];
}
} else {
- let previousPageIndex = visible.first.id - 2;
+ const previousPageIndex = visible.first.id - 2;
if (
views[previousPageIndex] &&
!this.isViewFinished(views[previousPageIndex])
diff --git a/web/pdf_sidebar.js b/web/pdf_sidebar.js
index c7cec24f4..3a735a5e6 100644
--- a/web/pdf_sidebar.js
+++ b/web/pdf_sidebar.js
@@ -307,14 +307,14 @@ class PDFSidebar {
* @private
*/
_updateThumbnailViewer() {
- let { pdfViewer, pdfThumbnailViewer } = this;
+ const { pdfViewer, pdfThumbnailViewer } = this;
// Use the rendered pages to set the corresponding thumbnail images.
- let pagesCount = pdfViewer.pagesCount;
+ const pagesCount = pdfViewer.pagesCount;
for (let pageIndex = 0; pageIndex < pagesCount; pageIndex++) {
- let pageView = pdfViewer.getPageView(pageIndex);
+ const pageView = pdfViewer.getPageView(pageIndex);
if (pageView && pageView.renderingState === RenderingStates.FINISHED) {
- let thumbnailView = pdfThumbnailViewer.getThumbnail(pageIndex);
+ const thumbnailView = pdfThumbnailViewer.getThumbnail(pageIndex);
thumbnailView.setImage(pageView);
}
}
@@ -367,7 +367,7 @@ class PDFSidebar {
return;
}
- let removeNotification = view => {
+ const removeNotification = view => {
switch (view) {
case SidebarView.OUTLINE:
this.outlineButton.classList.remove(UI_NOTIFICATION_CLASS);
@@ -431,7 +431,7 @@ class PDFSidebar {
// Disable/enable views.
this.eventBus.on("outlineloaded", evt => {
- let outlineCount = evt.outlineCount;
+ const outlineCount = evt.outlineCount;
this.outlineButton.disabled = !outlineCount;
diff --git a/web/pdf_sidebar_resizer.js b/web/pdf_sidebar_resizer.js
index dd8049c5e..0f85543d3 100644
--- a/web/pdf_sidebar_resizer.js
+++ b/web/pdf_sidebar_resizer.js
@@ -123,7 +123,7 @@ class PDFSidebarResizer {
// ... and ensure that rendering will always be triggered.
this.eventBus.dispatch("resize", { source: this });
- let _boundEvents = this._boundEvents;
+ const _boundEvents = this._boundEvents;
window.removeEventListener("mousemove", _boundEvents.mouseMove);
window.removeEventListener("mouseup", _boundEvents.mouseUp);
}
@@ -135,7 +135,7 @@ class PDFSidebarResizer {
if (!this.enabled) {
return;
}
- let _boundEvents = this._boundEvents;
+ const _boundEvents = this._boundEvents;
_boundEvents.mouseMove = this._mouseMove.bind(this);
_boundEvents.mouseUp = this._mouseUp.bind(this);
@@ -175,7 +175,7 @@ class PDFSidebarResizer {
return;
}
this.outerContainer.classList.add(SIDEBAR_RESIZING_CLASS);
- let updated = this._updateWidth(this._width);
+ const updated = this._updateWidth(this._width);
Promise.resolve().then(() => {
this.outerContainer.classList.remove(SIDEBAR_RESIZING_CLASS);
diff --git a/web/pdf_single_page_viewer.js b/web/pdf_single_page_viewer.js
index 04b07dad1..4fb78f7d9 100644
--- a/web/pdf_single_page_viewer.js
+++ b/web/pdf_single_page_viewer.js
@@ -43,10 +43,10 @@ class PDFSinglePageViewer extends BaseViewer {
}
_ensurePageViewVisible() {
- let pageView = this._pages[this._currentPageNumber - 1];
- let previousPageView = this._pages[this._previousPageNumber - 1];
+ const pageView = this._pages[this._currentPageNumber - 1];
+ const previousPageView = this._pages[this._previousPageNumber - 1];
- let viewerNodes = this.viewer.childNodes;
+ const viewerNodes = this.viewer.childNodes;
switch (viewerNodes.length) {
case 0: // Should *only* occur on initial loading.
this.viewer.appendChild(pageView.div);
diff --git a/web/pdf_thumbnail_view.js b/web/pdf_thumbnail_view.js
index f714e504b..9fe8b071c 100644
--- a/web/pdf_thumbnail_view.js
+++ b/web/pdf_thumbnail_view.js
@@ -59,7 +59,7 @@ const TempImageFactory = (function TempImageFactoryClosure() {
tempCanvas.mozOpaque = true;
}
- let ctx = tempCanvas.getContext("2d", { alpha: false });
+ const ctx = tempCanvas.getContext("2d", { alpha: false });
ctx.save();
ctx.fillStyle = "rgb(255, 255, 255)";
ctx.fillRect(0, 0, width, height);
@@ -68,7 +68,7 @@ const TempImageFactory = (function TempImageFactoryClosure() {
},
destroyCanvas() {
- let tempCanvas = tempCanvasCache;
+ const tempCanvas = tempCanvasCache;
if (tempCanvas) {
// Zeroing the width and height causes Firefox to release graphics
// resources immediately, which can greatly reduce memory consumption.
@@ -123,7 +123,7 @@ class PDFThumbnailView {
this.l10n = l10n;
- let anchor = document.createElement("a");
+ const anchor = document.createElement("a");
anchor.href = linkService.getAnchorUrl("#page=" + id);
this.l10n
.get("thumb_page_title", { page: id }, "Page {{page}}")
@@ -136,14 +136,14 @@ class PDFThumbnailView {
};
this.anchor = anchor;
- let div = document.createElement("div");
+ const div = document.createElement("div");
div.className = "thumbnail";
div.setAttribute("data-page-number", this.id);
this.div = div;
- let ring = document.createElement("div");
+ const ring = document.createElement("div");
ring.className = "thumbnailSelectionRing";
- let borderAdjustment = 2 * THUMBNAIL_CANVAS_BORDER_WIDTH;
+ const borderAdjustment = 2 * THUMBNAIL_CANVAS_BORDER_WIDTH;
ring.style.width = this.canvasWidth + borderAdjustment + "px";
ring.style.height = this.canvasHeight + borderAdjustment + "px";
this.ring = ring;
@@ -156,7 +156,7 @@ class PDFThumbnailView {
setPdfPage(pdfPage) {
this.pdfPage = pdfPage;
this.pdfPageRotate = pdfPage.rotate;
- let totalRotation = (this.rotation + this.pdfPageRotate) % 360;
+ const totalRotation = (this.rotation + this.pdfPageRotate) % 360;
this.viewport = pdfPage.getViewport({ scale: 1, rotation: totalRotation });
this.reset();
}
@@ -173,12 +173,12 @@ class PDFThumbnailView {
this.scale = this.canvasWidth / this.pageWidth;
this.div.removeAttribute("data-loaded");
- let ring = this.ring;
- let childNodes = ring.childNodes;
+ const ring = this.ring;
+ const childNodes = ring.childNodes;
for (let i = childNodes.length - 1; i >= 0; i--) {
ring.removeChild(childNodes[i]);
}
- let borderAdjustment = 2 * THUMBNAIL_CANVAS_BORDER_WIDTH;
+ const borderAdjustment = 2 * THUMBNAIL_CANVAS_BORDER_WIDTH;
ring.style.width = this.canvasWidth + borderAdjustment + "px";
ring.style.height = this.canvasHeight + borderAdjustment + "px";
@@ -199,7 +199,7 @@ class PDFThumbnailView {
if (typeof rotation !== "undefined") {
this.rotation = rotation;
}
- let totalRotation = (this.rotation + this.pdfPageRotate) % 360;
+ const totalRotation = (this.rotation + this.pdfPageRotate) % 360;
this.viewport = this.viewport.clone({
scale: 1,
rotation: totalRotation,
@@ -223,7 +223,7 @@ class PDFThumbnailView {
* @private
*/
_getPageDrawContext(noCtxScale = false) {
- let canvas = document.createElement("canvas");
+ const canvas = document.createElement("canvas");
// Keep the no-thumbnail outline visible, i.e. `data-loaded === false`,
// until rendering/image conversion is complete, to avoid display issues.
this.canvas = canvas;
@@ -234,8 +234,8 @@ class PDFThumbnailView {
) {
canvas.mozOpaque = true;
}
- let ctx = canvas.getContext("2d", { alpha: false });
- let outputScale = getOutputScale(ctx);
+ const ctx = canvas.getContext("2d", { alpha: false });
+ const outputScale = getOutputScale(ctx);
canvas.width = (this.canvasWidth * outputScale.sx) | 0;
canvas.height = (this.canvasHeight * outputScale.sy) | 0;
@@ -258,8 +258,8 @@ class PDFThumbnailView {
if (this.renderingState !== RenderingStates.FINISHED) {
return;
}
- let id = this.renderingId;
- let className = "thumbnailImage";
+ const id = this.renderingId;
+ const className = "thumbnailImage";
if (this.disableCanvasToImageConversion) {
this.canvas.id = id;
@@ -278,7 +278,7 @@ class PDFThumbnailView {
this.ring.appendChild(this.canvas);
return;
}
- let image = document.createElement("img");
+ const image = document.createElement("img");
image.id = id;
image.className = className;
this.l10n
@@ -314,8 +314,8 @@ class PDFThumbnailView {
}
this.renderingState = RenderingStates.RUNNING;
- let renderCapability = createPromiseCapability();
- let finishRenderTask = error => {
+ const renderCapability = createPromiseCapability();
+ const finishRenderTask = error => {
// The renderTask may have been replaced by a new one, so only remove
// the reference to the renderTask if it matches the one that is
// triggering this callback.
@@ -338,9 +338,9 @@ class PDFThumbnailView {
}
};
- let ctx = this._getPageDrawContext();
- let drawViewport = this.viewport.clone({ scale: this.scale });
- let renderContinueCallback = cont => {
+ const ctx = this._getPageDrawContext();
+ const drawViewport = this.viewport.clone({ scale: this.scale });
+ const renderContinueCallback = cont => {
if (!this.renderingQueue.isHighestPriority(this)) {
this.renderingState = RenderingStates.PAUSED;
this.resume = () => {
@@ -352,11 +352,11 @@ class PDFThumbnailView {
cont();
};
- let renderContext = {
+ const renderContext = {
canvasContext: ctx,
viewport: drawViewport,
};
- let renderTask = (this.renderTask = this.pdfPage.render(renderContext));
+ const renderTask = (this.renderTask = this.pdfPage.render(renderContext));
renderTask.onContinue = renderContinueCallback;
renderTask.promise.then(
@@ -374,7 +374,7 @@ class PDFThumbnailView {
if (this.renderingState !== RenderingStates.INITIAL) {
return;
}
- let img = pageView.canvas;
+ const img = pageView.canvas;
if (!img) {
return;
}
@@ -384,8 +384,8 @@ class PDFThumbnailView {
this.renderingState = RenderingStates.FINISHED;
- let ctx = this._getPageDrawContext(true);
- let canvas = ctx.canvas;
+ const ctx = this._getPageDrawContext(true);
+ const canvas = ctx.canvas;
if (img.width <= 2 * canvas.width) {
ctx.drawImage(
img,
@@ -405,8 +405,11 @@ class PDFThumbnailView {
// drawImage does an awful job of rescaling the image, doing it gradually.
let reducedWidth = canvas.width << MAX_NUM_SCALING_STEPS;
let reducedHeight = canvas.height << MAX_NUM_SCALING_STEPS;
- let reducedImage = TempImageFactory.getCanvas(reducedWidth, reducedHeight);
- let reducedImageCtx = reducedImage.getContext("2d");
+ const reducedImage = TempImageFactory.getCanvas(
+ reducedWidth,
+ reducedHeight
+ );
+ const reducedImageCtx = reducedImage.getContext("2d");
while (reducedWidth > img.width || reducedHeight > img.height) {
reducedWidth >>= 1;
diff --git a/web/pdf_thumbnail_viewer.js b/web/pdf_thumbnail_viewer.js
index ea229bb1b..b2180dc36 100644
--- a/web/pdf_thumbnail_viewer.js
+++ b/web/pdf_thumbnail_viewer.js
@@ -12,7 +12,6 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-/* eslint no-var: error, prefer-const: error */
import {
getVisibleElements,
diff --git a/web/preferences.js b/web/preferences.js
index 8bf163c89..f01b37406 100644
--- a/web/preferences.js
+++ b/web/preferences.js
@@ -12,7 +12,6 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-/* eslint no-var: error, prefer-const: error */
let defaultPreferences = null;
function getDefaultPreferences() {
diff --git a/web/secondary_toolbar.js b/web/secondary_toolbar.js
index eca5c19e8..f31916949 100644
--- a/web/secondary_toolbar.js
+++ b/web/secondary_toolbar.js
@@ -12,7 +12,6 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-/* eslint no-var: error, prefer-const: error */
import { SCROLLBAR_PADDING, ScrollMode, SpreadMode } from "./ui_utils";
import { CursorTool } from "./pdf_cursor_tools";
diff --git a/web/text_layer_builder.js b/web/text_layer_builder.js
index 23238808b..fb1f23095 100644
--- a/web/text_layer_builder.js
+++ b/web/text_layer_builder.js
@@ -12,7 +12,6 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-/* eslint no-var: error, prefer-const: error */
import { getGlobalEventBus } from "./ui_utils";
import { renderTextLayer } from "pdfjs-lib";
diff --git a/web/toolbar.js b/web/toolbar.js
index 3f905def2..76aaafed5 100644
--- a/web/toolbar.js
+++ b/web/toolbar.js
@@ -12,7 +12,6 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-/* eslint no-var: error, prefer-const: error */
import {
animationStarted,
diff --git a/web/ui_utils.js b/web/ui_utils.js
index 13c6d8f5f..fd9c4e461 100644
--- a/web/ui_utils.js
+++ b/web/ui_utils.js
@@ -12,7 +12,6 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-/* eslint no-var: error, prefer-const: error */
const CSS_UNITS = 96.0 / 72.0;
const DEFAULT_SCALE_VALUE = "auto";
diff --git a/web/view_history.js b/web/view_history.js
index 065d29b45..e150d1e36 100644
--- a/web/view_history.js
+++ b/web/view_history.js
@@ -12,7 +12,6 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-/* eslint no-var: error, prefer-const: error */
const DEFAULT_VIEW_HISTORY_CACHE_SIZE = 20;
diff --git a/web/viewer.js b/web/viewer.js
index 4fb49951c..d8d0359d2 100644
--- a/web/viewer.js
+++ b/web/viewer.js
@@ -12,7 +12,6 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-/* eslint no-var: error, prefer-const: error */
"use strict";
diff --git a/web/viewer_compatibility.js b/web/viewer_compatibility.js
index 142b27df6..c0c169d32 100644
--- a/web/viewer_compatibility.js
+++ b/web/viewer_compatibility.js
@@ -12,7 +12,6 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-/* eslint no-var: error, prefer-const: error */
const compatibilityParams = Object.create(null);
if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {