Remove the IL10n interface

Given that we either use the `L10n` class directly or extend it via `GenericL10n`, it should no longer be necessary to keep the interface-definition.
This should help reduce the maintenance burden of the code, since you no longer need to remember to update separate code when touching the `L10n` class.

src/display/editor/annotation_editor_layer.js

@@ -18,7 +18,6 @@
 /** @typedef {import("../display_utils.js").PageViewport} PageViewport */
 // eslint-disable-next-line max-len
 /** @typedef {import("../../../web/text_accessibility.js").TextAccessibilityManager} TextAccessibilityManager */
-/** @typedef {import("../../../web/interfaces").IL10n} IL10n */
 // eslint-disable-next-line max-len
 /** @typedef {import("../annotation_layer.js").AnnotationLayer} AnnotationLayer */
 /** @typedef {import("../draw_layer.js").DrawLayer} DrawLayer */
@@ -47,7 +46,7 @@ import { StampEditor } from "./stamp.js";
  * @property {boolean} enabled
  * @property {TextAccessibilityManager} [accessibilityManager]
  * @property {number} pageIndex
- * @property {IL10n} l10n
+ * @property {L10n} l10n
  * @property {AnnotationLayer} [annotationLayer]
  * @property {HTMLDivElement} [textLayer]
  * @property {DrawLayer} drawLayer

web/annotation_editor_layer_builder.js

@@ -20,7 +20,6 @@
 /** @typedef {import("../src/display/editor/tools.js").AnnotationEditorUIManager} AnnotationEditorUIManager */
 // eslint-disable-next-line max-len
 /** @typedef {import("./text_accessibility.js").TextAccessibilityManager} TextAccessibilityManager */
-/** @typedef {import("./interfaces").IL10n} IL10n */
 // eslint-disable-next-line max-len
 /** @typedef {import("../src/display/annotation_layer.js").AnnotationLayer} AnnotationLayer */
 // eslint-disable-next-line max-len
@@ -33,7 +32,7 @@ import { GenericL10n } from "web-null_l10n";
  * @typedef {Object} AnnotationEditorLayerBuilderOptions
  * @property {AnnotationEditorUIManager} [uiManager]
  * @property {PDFPageProxy} pdfPage
- * @property {IL10n} [l10n]
+ * @property {L10n} [l10n]
  * @property {StructTreeLayerBuilder} [structTreeLayer]
  * @property {TextAccessibilityManager} [accessibilityManager]
  * @property {AnnotationLayer} [annotationLayer]

web/app.js

@@ -13,7 +13,6 @@
  * limitations under the License.
  */
 
-/** @typedef {import("./interfaces.js").IL10n} IL10n */
 // eslint-disable-next-line max-len
 /** @typedef {import("../src/display/api.js").PDFDocumentProxy} PDFDocumentProxy */
 // eslint-disable-next-line max-len
@@ -160,7 +159,7 @@ const PDFViewerApplication = {
   secondaryToolbar: null,
   /** @type {EventBus} */
   eventBus: null,
-  /** @type {IL10n} */
+  /** @type {L10n} */
   l10n: null,
   /** @type {AnnotationEditorParams} */
   annotationEditorParams: null,

web/external_services.js

@@ -13,8 +13,6 @@
  * limitations under the License.
  */
 
-/** @typedef {import("./interfaces.js").IL10n} IL10n */
-
 class BaseExternalServices {
   constructor() {
     if (
@@ -36,7 +34,7 @@ class BaseExternalServices {
   reportText(data) {}
 
   /**
-   * @returns {Promise<IL10n>}
+   * @returns {Promise<L10n>}
    */
   async createL10n() {
     throw new Error("Not implemented: createL10n");

web/genericl10n.js

@@ -13,8 +13,6 @@
  * limitations under the License.
  */
 
-/** @typedef {import("./interfaces").IL10n} IL10n */
-
 import { FeatureTest, fetchData } from "pdfjs-lib";
 import { FluentBundle, FluentResource } from "fluent-bundle";
 import { DOMLocalization } from "fluent-dom";
@@ -49,9 +47,6 @@ function createBundle(lang, text) {
   return bundle;
 }
 
-/**
- * @implements {IL10n}
- */
 class GenericL10n extends L10n {
   constructor(lang) {
     super({ lang });

web/interfaces.js

@@ -71,49 +71,6 @@ class IDownloadManager {
   download(data, url, filename) {}
 }
 
-/**
- * @interface
- */
-class IL10n {
-  /**
-   * @returns {string} - The current locale.
-   */
-  getLanguage() {}
-
-  /**
-   * @returns {string} - 'rtl' or 'ltr'.
-   */
-  getDirection() {}
-
-  /**
-   * Translates text identified by the key and adds/formats data using the args
-   * property bag. If the key was not found, translation falls back to the
-   * fallback text.
-   * @param {Array | string} ids
-   * @param {Object | null} [args]
-   * @param {string} [fallback]
-   * @returns {Promise<string>}
-   */
-  async get(ids, args = null, fallback) {}
-
-  /**
-   * Translates HTML element.
-   * @param {HTMLElement} element
-   * @returns {Promise<void>}
-   */
-  async translate(element) {}
-
-  /**
-   * Pause the localization.
-   */
-  pause() {}
-
-  /**
-   * Resume the localization.
-   */
-  resume() {}
-}
-
 /**
  * @interface
  */
@@ -129,4 +86,4 @@ class IPDFPrintServiceFactory {
   }
 }
 
-export { IDownloadManager, IL10n, IPDFPrintServiceFactory, IRenderableView };
+export { IDownloadManager, IPDFPrintServiceFactory, IRenderableView };

web/l10n.js

@@ -13,12 +13,9 @@
  * limitations under the License.
  */
 
-/** @typedef {import("./interfaces").IL10n} IL10n */
-
 /**
  * NOTE: The L10n-implementations should use lowercase language-codes
  *       internally.
- * @implements {IL10n}
  */
 class L10n {
   #dir;

web/pdf_document_properties.js

@@ -14,7 +14,6 @@
  */
 
 /** @typedef {import("./event_utils.js").EventBus} EventBus */
-/** @typedef {import("./interfaces.js").IL10n} IL10n */
 /** @typedef {import("./overlay_manager.js").OverlayManager} OverlayManager */
 // eslint-disable-next-line max-len
 /** @typedef {import("../src/display/api.js").PDFDocumentProxy} PDFDocumentProxy */
@@ -58,7 +57,7 @@ class PDFDocumentProperties {
    * @param {PDFDocumentPropertiesOptions} options
    * @param {OverlayManager} overlayManager - Manager for the viewer overlays.
    * @param {EventBus} eventBus - The application event bus.
-   * @param {IL10n} l10n - Localization service.
+   * @param {L10n} l10n - Localization service.
    * @param {function} fileNameLookup - The function that is used to lookup
    *   the document fileName.
    */

web/pdf_page_view.js

@@ -18,7 +18,6 @@
 // eslint-disable-next-line max-len
 /** @typedef {import("../src/display/optional_content_config").OptionalContentConfig} OptionalContentConfig */
 /** @typedef {import("./event_utils").EventBus} EventBus */
-/** @typedef {import("./interfaces").IL10n} IL10n */
 /** @typedef {import("./interfaces").IRenderableView} IRenderableView */
 // eslint-disable-next-line max-len
 /** @typedef {import("./pdf_rendering_queue").PDFRenderingQueue} PDFRenderingQueue */
@@ -98,7 +97,7 @@ import { XfaLayerBuilder } from "./xfa_layer_builder.js";
  * @property {Object} [pageColors] - Overwrites background and foreground colors
  *   with user defined ones in order to improve readability in high contrast
  *   mode.
- * @property {IL10n} [l10n] - Localization service.
+ * @property {L10n} [l10n] - Localization service.
  * @property {Object} [layerProperties] - The object that is used to lookup
  *   the necessary layer-properties.
  * @property {boolean} [enableAutoLinking] - Enable creation of hyperlinks from

web/pdf_viewer.js

@@ -21,7 +21,6 @@
 /** @typedef {import("../src/display/optional_content_config").OptionalContentConfig} OptionalContentConfig */
 /** @typedef {import("./event_utils").EventBus} EventBus */
 /** @typedef {import("./interfaces").IDownloadManager} IDownloadManager */
-/** @typedef {import("./interfaces").IL10n} IL10n */
 // eslint-disable-next-line max-len
 /** @typedef {import("./pdf_find_controller").PDFFindController} PDFFindController */
 // eslint-disable-next-line max-len
@@ -134,7 +133,7 @@ function isValidAnnotationEditorMode(mode) {
  *   rendering will keep track of which areas of the page each PDF operation
  *   affects. Then, when rendering a partial page (if `enableDetailCanvas` is
  *   enabled), it will only run through the operations that affect that portion.
- * @property {IL10n} [l10n] - Localization service.
+ * @property {L10n} [l10n] - Localization service.
  * @property {boolean} [enablePermissions] - Enables PDF document permissions,
  *   when they exist. The default value is `false`.
  * @property {Object} [pageColors] - Overwrites background and foreground colors

web/views_manager.js

@@ -14,7 +14,6 @@
  */
 
 /** @typedef {import("./event_utils.js").EventBus} EventBus */
-/** @typedef {import("./interfaces.js").IL10n} IL10n */
 
 import {
   docStyle,
@@ -34,7 +33,7 @@ const UI_NOTIFICATION_CLASS = "pdfSidebarNotification";
  * @typedef {Object} PDFSidebarOptions
  * @property {PDFSidebarElements} elements - The DOM elements.
  * @property {EventBus} eventBus - The application event bus.
- * @property {IL10n} l10n - The localization service.
+ * @property {L10n} l10n - The localization service.
  */
 
 /**