f0719ed565
If, as PR 10368 suggests, more parameters should be added to `getViewport` I think that it would be a mistake to not change the signature *first* to avoid needlessly unwieldy call-sites. To not break any existing code and third-party use-cases, this is obviously implemented with a deprecation warning *and* with a working fallback[1] for the old method signature. --- [1] This is limited to `GENERIC` builds, which should be sufficient.
99 lines
3.0 KiB
JavaScript
99 lines
3.0 KiB
JavaScript
/* Copyright 2017 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 { buildGetDocumentParams } from './test_utils';
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import { DOMCanvasFactory } from '../../src/display/dom_utils';
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import { getDocument } from '../../src/display/api';
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import isNodeJS from '../../src/shared/is_node';
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function getTopLeftPixel(canvasContext) {
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let imgData = canvasContext.getImageData(0, 0, 1, 1);
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return {
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r: imgData.data[0],
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g: imgData.data[1],
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b: imgData.data[2],
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a: imgData.data[3],
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};
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}
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describe('custom canvas rendering', function() {
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let transparentGetDocumentParams = buildGetDocumentParams('transparent.pdf');
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let CanvasFactory;
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let loadingTask;
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let page;
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beforeAll(function(done) {
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if (isNodeJS()) {
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// NOTE: To support running the canvas-related tests in Node.js,
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// a `NodeCanvasFactory` would need to be added (in test_utils.js).
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} else {
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CanvasFactory = new DOMCanvasFactory();
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}
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loadingTask = getDocument(transparentGetDocumentParams);
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loadingTask.promise.then(function(doc) {
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return doc.getPage(1);
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}).then(function(data) {
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page = data;
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done();
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}).catch(done.fail);
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});
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afterAll(function(done) {
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CanvasFactory = null;
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page = null;
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loadingTask.destroy().then(done);
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});
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it('renders to canvas with a default white background', function(done) {
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if (isNodeJS()) {
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pending('TODO: Support Canvas testing in Node.js.');
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}
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var viewport = page.getViewport({ scale: 1, });
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var canvasAndCtx = CanvasFactory.create(viewport.width, viewport.height);
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const renderTask = page.render({
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canvasContext: canvasAndCtx.context,
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viewport,
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});
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renderTask.promise.then(function() {
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expect(getTopLeftPixel(canvasAndCtx.context)).toEqual(
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{ r: 255, g: 255, b: 255, a: 255, });
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CanvasFactory.destroy(canvasAndCtx);
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done();
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}).catch(done.fail);
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});
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it('renders to canvas with a custom background', function(done) {
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if (isNodeJS()) {
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pending('TODO: Support Canvas testing in Node.js.');
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}
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var viewport = page.getViewport({ scale: 1, });
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var canvasAndCtx = CanvasFactory.create(viewport.width, viewport.height);
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const renderTask = page.render({
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canvasContext: canvasAndCtx.context,
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viewport,
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background: 'rgba(255,0,0,1.0)',
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});
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renderTask.promise.then(function() {
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expect(getTopLeftPixel(canvasAndCtx.context)).toEqual(
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{ r: 255, g: 0, b: 0, a: 255, });
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CanvasFactory.destroy(canvasAndCtx);
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done();
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}).catch(done.fail);
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});
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});
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