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e4d0e84802
This replaces our custom `PromiseCapability`-class with the new native `Promise.withResolvers()` functionality, which does *almost* the same thing[1]; please see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/withResolvers The only difference is that `PromiseCapability` also had a `settled`-getter, which was however not widely used and the call-sites can either be removed or re-factored to avoid it. In particular: - In `src/display/api.js` we can tweak the `PDFObjects`-class to use a "special" initial data-value and just compare against that, in order to replace the `settled`-state. - In `web/app.js` we change the only case to manually track the `settled`-state, which should hopefully be OK given how this is being used. - In `web/pdf_outline_viewer.js` we can remove the `settled`-checks, since the code should work just fine without it. The only thing that could potentially happen is that we try to `resolve` a Promise multiple times, which is however *not* a problem since the value of a Promise cannot be changed once fulfilled or rejected. - In `web/pdf_viewer.js` we can remove the `settled`-checks, since the code should work fine without them: - For the `_onePageRenderedCapability` case the `settled`-check is used in a `EventBus`-listener which is *removed* on its first (valid) invocation. - For the `_pagesCapability` case the `settled`-check is used in a print-related helper that works just fine with "only" the other checks. - In `test/unit/api_spec.js` we can change the few relevant cases to manually track the `settled`-state, since this is both simple and *test-only* code. --- [1] In browsers/environments that lack native support, note [the compatibility data](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/withResolvers#browser_compatibility), it'll be polyfilled via the `core-js` library (but only in `legacy` builds).
132 lines
3.7 KiB
JavaScript
132 lines
3.7 KiB
JavaScript
/* Copyright 2012 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// eslint-disable-next-line max-len
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/** @typedef {import("./display/api").OnProgressParameters} OnProgressParameters */
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// eslint-disable-next-line max-len
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/** @typedef {import("./display/api").PDFDocumentLoadingTask} PDFDocumentLoadingTask */
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/** @typedef {import("./display/api").PDFDocumentProxy} PDFDocumentProxy */
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/** @typedef {import("./display/api").PDFPageProxy} PDFPageProxy */
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/** @typedef {import("./display/api").RenderTask} RenderTask */
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/** @typedef {import("./display/display_utils").PageViewport} PageViewport */
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// eslint-disable-next-line max-len
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/** @typedef {import("./display/text_layer").TextLayerRenderTask} TextLayerRenderTask */
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import {
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AbortException,
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AnnotationEditorParamsType,
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AnnotationEditorType,
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AnnotationMode,
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CMapCompressionType,
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createValidAbsoluteUrl,
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FeatureTest,
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ImageKind,
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InvalidPDFException,
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MissingPDFException,
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normalizeUnicode,
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OPS,
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PasswordResponses,
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PermissionFlag,
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shadow,
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UnexpectedResponseException,
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Util,
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VerbosityLevel,
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} from "./shared/util.js";
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import {
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build,
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getDocument,
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PDFDataRangeTransport,
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PDFWorker,
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version,
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} from "./display/api.js";
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import {
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DOMSVGFactory,
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fetchData,
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getFilenameFromUrl,
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getPdfFilenameFromUrl,
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getXfaPageViewport,
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isDataScheme,
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isPdfFile,
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noContextMenu,
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PDFDateString,
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PixelsPerInch,
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RenderingCancelledException,
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setLayerDimensions,
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} from "./display/display_utils.js";
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import { renderTextLayer, updateTextLayer } from "./display/text_layer.js";
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import { AnnotationEditorLayer } from "./display/editor/annotation_editor_layer.js";
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import { AnnotationEditorUIManager } from "./display/editor/tools.js";
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import { AnnotationLayer } from "./display/annotation_layer.js";
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import { ColorPicker } from "./display/editor/color_picker.js";
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import { DrawLayer } from "./display/draw_layer.js";
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import { GlobalWorkerOptions } from "./display/worker_options.js";
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import { Outliner } from "./display/editor/outliner.js";
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import { XfaLayer } from "./display/xfa_layer.js";
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/* eslint-disable-next-line no-unused-vars */
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const pdfjsVersion =
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typeof PDFJSDev !== "undefined" ? PDFJSDev.eval("BUNDLE_VERSION") : void 0;
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/* eslint-disable-next-line no-unused-vars */
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const pdfjsBuild =
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typeof PDFJSDev !== "undefined" ? PDFJSDev.eval("BUNDLE_BUILD") : void 0;
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export {
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AbortException,
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AnnotationEditorLayer,
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AnnotationEditorParamsType,
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AnnotationEditorType,
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AnnotationEditorUIManager,
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AnnotationLayer,
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AnnotationMode,
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build,
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CMapCompressionType,
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ColorPicker,
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createValidAbsoluteUrl,
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DOMSVGFactory,
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DrawLayer,
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FeatureTest,
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fetchData,
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getDocument,
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getFilenameFromUrl,
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getPdfFilenameFromUrl,
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getXfaPageViewport,
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GlobalWorkerOptions,
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ImageKind,
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InvalidPDFException,
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isDataScheme,
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isPdfFile,
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MissingPDFException,
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noContextMenu,
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normalizeUnicode,
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OPS,
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Outliner,
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PasswordResponses,
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PDFDataRangeTransport,
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PDFDateString,
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PDFWorker,
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PermissionFlag,
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PixelsPerInch,
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RenderingCancelledException,
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renderTextLayer,
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setLayerDimensions,
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shadow,
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UnexpectedResponseException,
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updateTextLayer,
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Util,
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VerbosityLevel,
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version,
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XfaLayer,
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};
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