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120 lines
3.3 KiB
JavaScript
120 lines
3.3 KiB
JavaScript
/* Copyright 2021 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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/** @typedef {import("../src/display/api").PDFPageProxy} PDFPageProxy */
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// eslint-disable-next-line max-len
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/** @typedef {import("../src/display/annotation_storage").AnnotationStorage} AnnotationStorage */
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// eslint-disable-next-line max-len
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/** @typedef {import("../src/display/display_utils").PageViewport} PageViewport */
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/** @typedef {import("./interfaces").IPDFLinkService} IPDFLinkService */
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import { XfaLayer } from "pdfjs-lib";
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/**
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* @typedef {Object} XfaLayerBuilderOptions
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* @property {PDFPageProxy} pdfPage
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* @property {AnnotationStorage} [annotationStorage]
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* @property {IPDFLinkService} linkService
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* @property {Object} [xfaHtml]
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*/
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/**
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* @typedef {Object} XfaLayerBuilderRenderOptions
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* @property {PageViewport} viewport
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* @property {string} [intent] - The default value is "display".
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*/
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class XfaLayerBuilder {
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/**
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* @param {XfaLayerBuilderOptions} options
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*/
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constructor({
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pdfPage,
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annotationStorage = null,
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linkService,
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xfaHtml = null,
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}) {
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this.pdfPage = pdfPage;
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this.annotationStorage = annotationStorage;
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this.linkService = linkService;
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this.xfaHtml = xfaHtml;
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this.div = null;
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this._cancelled = false;
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}
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/**
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* @param {XfaLayerBuilderRenderOptions} viewport
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* @returns {Promise<Object | void>} A promise that is resolved when rendering
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* of the XFA layer is complete. The first rendering will return an object
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* with a `textDivs` property that can be used with the TextHighlighter.
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*/
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async render({ viewport, intent = "display" }) {
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if (intent === "print") {
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const parameters = {
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viewport: viewport.clone({ dontFlip: true }),
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div: this.div,
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xfaHtml: this.xfaHtml,
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annotationStorage: this.annotationStorage,
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linkService: this.linkService,
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intent,
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};
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// Create an xfa layer div and render the form
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this.div = document.createElement("div");
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parameters.div = this.div;
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return XfaLayer.render(parameters);
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}
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// intent === "display"
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const xfaHtml = await this.pdfPage.getXfa();
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if (this._cancelled || !xfaHtml) {
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return { textDivs: [] };
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}
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const parameters = {
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viewport: viewport.clone({ dontFlip: true }),
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div: this.div,
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xfaHtml,
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annotationStorage: this.annotationStorage,
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linkService: this.linkService,
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intent,
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};
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if (this.div) {
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return XfaLayer.update(parameters);
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}
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// Create an xfa layer div and render the form
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this.div = document.createElement("div");
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parameters.div = this.div;
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return XfaLayer.render(parameters);
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}
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cancel() {
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this._cancelled = true;
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}
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hide() {
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if (!this.div) {
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return;
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}
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this.div.hidden = true;
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}
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}
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export { XfaLayerBuilder };
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