/* 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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"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 }
);