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const fs = require('fs');
const path = require('path');
const assert = require('assert');
const {JSDOM} = require('jsdom');
const yomichanTest = require('./yomichan-test');
// DOMRect class definition
class DOMRect {
constructor(x, y, width, height) {
this._x = x;
this._y = y;
this._width = width;
this._height = height;
}
get x() { return this._x; }
get y() { return this._y; }
get width() { return this._width; }
get height() { return this._height; }
get left() { return this._x + Math.min(0, this._width); }
get right() { return this._x + Math.max(0, this._width); }
get top() { return this._y + Math.min(0, this._height); }
get bottom() { return this._y + Math.max(0, this._height); }
}
function createJSDOM(fileName) {
const domSource = fs.readFileSync(fileName, {encoding: 'utf8'});
const dom = new JSDOM(domSource);
const document = dom.window.document;
const window = dom.window;
// Define innerText setter as an alias for textContent setter
Object.defineProperty(window.HTMLDivElement.prototype, 'innerText', {
set(value) { this.textContent = value; }
});
// Placeholder for feature detection
document.caretRangeFromPoint = () => null;
return dom;
}
function querySelectorChildOrSelf(element, selector) {
return selector ? element.querySelector(selector) : element;
}
function getChildTextNodeOrSelf(dom, node) {
if (node === null) { return null; }
const Node = dom.window.Node;
const childNode = node.firstChild;
return (childNode !== null && childNode.nodeType === Node.TEXT_NODE ? childNode : node);
}
function getPrototypeOfOrNull(value) {
try {
return Object.getPrototypeOf(value);
} catch (e) {
return null;
}
}
function findImposterElement(document) {
// Finds the imposter element based on it's z-index style
return document.querySelector('div[style*="2147483646"]>*');
}
async function testDocument1() {
const dom = createJSDOM(path.join(__dirname, 'data', 'html', 'test-document1.html'));
const window = dom.window;
const document = window.document;
const Node = window.Node;
const Range = window.Range;
const {DOM} = yomichanTest.requireScript(
'ext/mixed/js/dom.js',
['DOM']
);
const {TextSourceRange, TextSourceElement} = yomichanTest.requireScript(
'ext/fg/js/source.js',
['TextSourceRange', 'TextSourceElement'],
{document, window, Range, Node}
);
const {docRangeFromPoint, docSentenceExtract} = yomichanTest.requireScript(
'ext/fg/js/document.js',
['docRangeFromPoint', 'docSentenceExtract'],
{document, window, Node, TextSourceElement, TextSourceRange, DOM}
);
try {
await testDocument1Inner(dom, {docRangeFromPoint, docSentenceExtract, TextSourceRange, TextSourceElement});
} finally {
window.close();
}
}
async function testDocument1Inner(dom, {docRangeFromPoint, docSentenceExtract, TextSourceRange, TextSourceElement}) {
const document = dom.window.document;
for (const testElement of document.querySelectorAll('.test')) {
// Get test parameters
let {
elementFromPointSelector,
caretRangeFromPointSelector,
startNodeSelector,
startOffset,
endNodeSelector,
endOffset,
resultType,
sentenceExtent,
sentence,
hasImposter
} = testElement.dataset;
const elementFromPointValue = querySelectorChildOrSelf(testElement, elementFromPointSelector);
const caretRangeFromPointValue = querySelectorChildOrSelf(testElement, caretRangeFromPointSelector);
const startNode = getChildTextNodeOrSelf(dom, querySelectorChildOrSelf(testElement, startNodeSelector));
const endNode = getChildTextNodeOrSelf(dom, querySelectorChildOrSelf(testElement, endNodeSelector));
startOffset = parseInt(startOffset, 10);
endOffset = parseInt(endOffset, 10);
sentenceExtent = parseInt(sentenceExtent, 10);
assert.notStrictEqual(elementFromPointValue, null);
assert.notStrictEqual(caretRangeFromPointValue, null);
assert.notStrictEqual(startNode, null);
assert.notStrictEqual(endNode, null);
// Setup functions
document.elementFromPoint = () => elementFromPointValue;
document.caretRangeFromPoint = (x, y) => {
const imposter = getChildTextNodeOrSelf(dom, findImposterElement(document));
assert.strictEqual(!!imposter, hasImposter === 'true');
const range = document.createRange();
range.setStart(imposter ? imposter : startNode, startOffset);
range.setEnd(imposter ? imposter : startNode, endOffset);
// Override getClientRects to return a rect guaranteed to contain (x, y)
range.getClientRects = () => [new DOMRect(x - 1, y - 1, 2, 2)];
return range;
};
// Test docRangeFromPoint
const source = docRangeFromPoint(0, 0, false);
switch (resultType) {
case 'TextSourceRange':
assert.strictEqual(getPrototypeOfOrNull(source), TextSourceRange.prototype);
break;
case 'TextSourceElement':
assert.strictEqual(getPrototypeOfOrNull(source), TextSourceElement.prototype);
break;
case 'null':
assert.strictEqual(source, null);
break;
default:
assert.ok(false);
break;
}
if (source === null) { continue; }
// Test docSentenceExtract
const sentenceActual = docSentenceExtract(source, sentenceExtent).text;
assert.strictEqual(sentenceActual, sentence);
// Clean
source.cleanup();
}
}
async function main() {
await testDocument1();
}
if (require.main === module) { main(); }
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