118 lines
3.9 KiB
JavaScript
118 lines
3.9 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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/* import-globals-from ../../mochitest/layout.js */
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async function testContentBounds(browser, acc, expectedWidth, expectedHeight) {
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let [expectedX, expectedY] = await getContentBoundsForDOMElm(
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browser,
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getAccessibleDOMNodeID(acc)
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);
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let contentDPR = await getContentDPR(browser);
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let [x, y, width, height] = getBounds(acc, contentDPR);
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let prettyAccName = prettyName(acc);
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is(x, expectedX, "Wrong x coordinate of " + prettyAccName);
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is(y, expectedY, "Wrong y coordinate of " + prettyAccName);
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is(width, expectedWidth, "Wrong width of " + prettyAccName);
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is(height, expectedHeight, "Wrong height of " + prettyAccName);
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}
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/**
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* Test accessible bounds with different combinations of overflow and
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* non-zero frame area.
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*/
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addAccessibleTask(
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`
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<div id="a1" style="height:100px; width:100px; background:green;"></div>
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<div id="a2" style="height:100px; width:100px; background:green;"><div style="height:300px; max-width: 300px; background:blue;"></div></div>
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<div id="a3" style="height:0; width:0;"><div style="height:200px; width:200px; background:green;"></div></div>
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`,
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async function (browser, accDoc) {
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const a1 = findAccessibleChildByID(accDoc, "a1");
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const a2 = findAccessibleChildByID(accDoc, "a2");
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const a3 = findAccessibleChildByID(accDoc, "a3");
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await testContentBounds(browser, a1, 100, 100);
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await testContentBounds(browser, a2, 100, 100);
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await testContentBounds(browser, a3, 200, 200);
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}
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);
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/**
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* Ensure frames with zero area have their x, y coordinates correctly reported
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* in bounds()
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*/
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addAccessibleTask(
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`
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<br>
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<div id="a" style="height:0; width:0;"></div>
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`,
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async function (browser, accDoc) {
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const a = findAccessibleChildByID(accDoc, "a");
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await testContentBounds(browser, a, 0, 0);
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}
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);
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/**
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* Ensure accessibles have accurately signed dimensions and position when
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* offscreen.
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*/
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addAccessibleTask(
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`
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<input type="radio" id="radio" style="left: -671091em; position: absolute;">
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`,
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async function (browser, accDoc) {
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const radio = findAccessibleChildByID(accDoc, "radio");
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const contentDPR = await getContentDPR(browser);
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const [x, y, width, height] = getBounds(radio, contentDPR);
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Assert.less(x, 0, "X coordinate should be negative");
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Assert.greater(y, 0, "Y coordinate should be positive");
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Assert.greater(width, 0, "Width should be positive");
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Assert.greater(height, 0, "Height should be positive");
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// Note: the exact values of x, y, width, and height
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// are inconsistent with the DOM element values of those
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// fields, so we don't check our bounds against them with
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// `testContentBounds` here. DOM reports a negative width,
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// positive height, and a slightly different (+/- 20)
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// x and y.
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}
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);
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/**
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* Test height: 0 with align-items: flex-end. This causes the content to
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* overflow above the frame's main rect.
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*/
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addAccessibleTask(
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`
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<aside style="height: 0; display: flex; align-items: flex-end;">
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<div id="inner0">testing</div>
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</aside>
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<aside style="height: 1; display: flex; align-items: flex-end;">
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<div id="inner1">testing</div>
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</aside>
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`,
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async function (browser, docAcc) {
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await testBoundsWithContent(docAcc, "inner0", browser);
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await testBoundsWithContent(docAcc, "inner1", browser);
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},
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{ chrome: true, topLevel: true, remoteIframe: true }
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);
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/**
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* Test a div (block) inside a span (inline). This causes the span's primary
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* frame to have an empty rect offset from its visible content.
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*/
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addAccessibleTask(
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`
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<span id="span" tabindex="-1">
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<div id="div">Testing</div>
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</span>
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`,
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async function (browser, docAcc) {
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await testBoundsWithContent(docAcc, "span", browser);
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await testBoundsWithContent(docAcc, "div", browser);
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},
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{ chrome: true, topLevel: true, remoteIframe: true }
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);
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