pdf.js/test/integration/find_spec.mjs
2023-10-27 16:10:06 +02:00

116 lines
4.4 KiB
JavaScript

/* Copyright 2021 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { closePages, loadAndWait } from "./test_utils.mjs";
function fuzzyMatch(a, b, browserName, pixelFuzz = 3) {
expect(a)
.withContext(`In ${browserName}`)
.toBeLessThan(b + pixelFuzz);
expect(a)
.withContext(`In ${browserName}`)
.toBeGreaterThan(b - pixelFuzz);
}
describe("find bar", () => {
describe("highlight all", () => {
let pages;
beforeAll(async () => {
pages = await loadAndWait("find_all.pdf", ".textLayer", 100);
});
afterAll(async () => {
await closePages(pages);
});
it("must highlight text in the right position", async () => {
await Promise.all(
pages.map(async ([browserName, page]) => {
await page.click("#viewFind");
await page.waitForSelector("#viewFind", { hidden: false });
await page.type("#findInput", "a");
await page.click("#findHighlightAll");
await page.waitForSelector(".textLayer .highlight");
// The PDF has the text "AB BA" in a monospace font.
// Make sure we have the right number of highlighted divs.
const highlights = await page.$$(".textLayer .highlight");
expect(highlights.length).withContext(`In ${browserName}`).toEqual(2);
const glyphWidth = 15.98; // From the PDF.
const pageDiv = await page.$(".page canvas");
const pageBox = await pageDiv.boundingBox();
const firstA = await highlights[0].boundingBox();
const secondA = await highlights[1].boundingBox();
// Subtract the page offset from the text bounding boxes;
firstA.x -= pageBox.x;
firstA.y -= pageBox.y;
secondA.x -= pageBox.x;
secondA.y -= pageBox.y;
// They should be on the same line.
expect(firstA.y).withContext(`In ${browserName}`).toEqual(secondA.y);
const fontSize = 26.66; // From the PDF.
// The highlighted text has more padding.
fuzzyMatch(firstA.height, fontSize + 5, browserName);
fuzzyMatch(secondA.height, fontSize + 5, browserName);
const expectedFirstAX = 28;
fuzzyMatch(firstA.x, expectedFirstAX, browserName);
// The second 'A' should be 4 glyphs widths from the first.
fuzzyMatch(secondA.x, expectedFirstAX + glyphWidth * 4, browserName);
})
);
});
});
describe("highlight all", () => {
let pages;
beforeAll(async () => {
pages = await loadAndWait("xfa_imm5257e.pdf", ".xfaLayer");
});
afterAll(async () => {
await closePages(pages);
});
it("must search xfa correctly", async () => {
await Promise.all(
pages.map(async ([browserName, page]) => {
await page.click("#viewFind");
await page.waitForSelector("#viewFind", { hidden: false });
await page.type("#findInput", "preferences");
await page.waitForSelector("#findInput[data-status='']");
await page.waitForSelector(".xfaLayer .highlight");
await page.waitForFunction(
() => !!document.querySelector("#findResultsCount")?.textContent
);
const resultElement = await page.waitForSelector("#findResultsCount");
const resultText = await resultElement.evaluate(el => el.textContent);
/** Unicode bidi isolation characters. */
const FSI = "\u2068";
const PDI = "\u2069";
// Fluent adds these markers to the result text.
expect(resultText).toEqual(`${FSI}1${PDI} of ${FSI}1${PDI} match`);
const selectedElement = await page.waitForSelector(
".highlight.selected"
);
const selectedText = await selectedElement.evaluate(
el => el.textContent
);
expect(selectedText).toEqual("Preferences");
})
);
});
});
});