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