3e550f392a
Rather than re-computing this value in a number of different places throughout the code-base[1], we can expose this in the API via the existing `PixelsPerInch`-structure instead. There's also been feature requests asking for the old `CSS_UNITS` viewer constant to be made accessible, such that it could be used in third-party implementations. I suppose that it could be argued that it's somewhat confusing to place a unitless property in `PixelsPerInch`, however given that the `PDF_TO_CSS_UNITS`-property is defined strictly in terms of the existing properties this is hopefully deemed reasonable. --- [1] These include: - The viewer, with the `CSS_UNITS` name. - The reference-tests. - The display-layer, when rendering images; see PR 13991.
42 lines
1.4 KiB
JavaScript
42 lines
1.4 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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import { getXfaPageViewport, PixelsPerInch } from "pdfjs-lib";
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import { DefaultXfaLayerFactory } from "./xfa_layer_builder.js";
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function getXfaHtmlForPrinting(printContainer, pdfDocument) {
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const xfaHtml = pdfDocument.allXfaHtml;
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const factory = new DefaultXfaLayerFactory();
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const scale = Math.round(PixelsPerInch.PDF_TO_CSS_UNITS * 100) / 100;
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for (const xfaPage of xfaHtml.children) {
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const page = document.createElement("div");
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page.className = "xfaPrintedPage";
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printContainer.appendChild(page);
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const builder = factory.createXfaLayerBuilder(
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/* pageDiv = */ page,
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/* pdfPage = */ null,
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/* annotationStorage = */ pdfDocument.annotationStorage,
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/* xfaHtml = */ xfaPage
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);
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const viewport = getXfaPageViewport(xfaPage, { scale });
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builder.render(viewport, "print");
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}
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}
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export { getXfaHtmlForPrinting };
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