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<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css" type="text/css"?>
<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
<script src="chrome://mochikit/content/tests/SimpleTest/WindowSnapshot.js"></script>
<html:style xmlns:html="http://www.w3.org/1999/xhtml" type="text/css">
* { outline: none; }
#b3:focus-visible { outline: auto }
#l1:focus-visible, #l3:focus-visible, #b1:focus-visible { outline: 2px solid red; }
#l2:focus, #b2:focus { outline: 2px solid red; }
</html:style>
<script>
<![CDATA[
SimpleTest.waitForExplicitFinish();
const kIsMac = navigator.platform.includes("Mac");
function snapShot(element) {
var rect = element.getBoundingClientRect();
adjustedRect = { left: rect.left - 6, top: rect.top - 6,
width: rect.width + 12, height: rect.height + 12 }
return SpecialPowers.snapshotRect(window, adjustedRect, "transparent");
}
async function initTest() {
if (kIsMac) {
// FIXME: Historically this pref was only respected on mac,
// and the test uses that assumption.
//
// Ideally it should be refactored to test with the different
// values of the pref, independently of the platform.
await SpecialPowers.pushPrefEnv({
"set": [
['accessibility.mouse_focuses_formcontrol', 0],
]
});
}
runTest();
}
function runTest()
{
var isWinOrLinux = navigator.platform.includes("Win") || navigator.platform.includes("Linux");
function checkFocus(element, visible, testid)
{
var outline = getComputedStyle(element, "").outlineWidth;
is(outline, visible ? "2px" : "0px", testid);
}
// make sure that a focus ring appears on the focused button
if (kIsMac) {
var focusedButton = $("b3");
const retBefore = compareSnapshots(snapShot(focusedButton), snapShot($("b2")), true);
ok(retBefore[0], `unfocused shows no ring,\nRESULT:\n${retBefore[1]}, \nREFERENCE:\n${retBefore[2]}`);
focusedButton.focus();
const retAfter = compareSnapshots(snapShot(focusedButton), snapShot($("b2")), false);
ok(retAfter[0], `focus shows ring,\nRESULT:\n${retAfter[1]}, \nREFERENCE:\n${retAfter[2]}`);
}
checkFocus($("l1"), false, "initial appearance");
// we can't really test the situation on Windows where a dialog doesn't show
// focus rings until a key is pressed, as the default state depends on what
// kind of real user input, mouse or key, was last entered. But we can handle
// the test regardless of which user input last occurred.
$("l1").focus();
var expectedVisible = (!isWinOrLinux || getComputedStyle($("l1"), "").outlineWidth == "2px");
testHTMLElements(htmlElements, isWinOrLinux && !expectedVisible);
$("l1").focus();
checkFocus($("l1"), expectedVisible, "appearance on list after focus() with :moz-focusring");
$("l2").focus();
checkFocus($("l2"), true, "appearance on list after focus() with :focus");
is(getComputedStyle($("l1"), "").outlineWidth, "0px", "appearance on previous list after focus() with :focus");
synthesizeMouse($("l1"), 4, 4, { });
checkFocus($("l1"), false, "appearance on list after mouse focus with :moz-focusring");
synthesizeMouse($("l2"), 4, 4, { });
checkFocus($("l2"), true, "appearance on list after mouse focus with :focus");
synthesizeMouse($("b1"), 4, 4, { });
checkFocus($("b1"), false, "appearance on button after mouse focus with :moz-focusring");
synthesizeMouse($("b2"), 4, 4, { });
checkFocus($("b2"), !kIsMac, "appearance on button after mouse focus with :focus");
// after a key is pressed, the focus ring will always be visible
$("l2").focus();
synthesizeKey("KEY_Tab");
checkFocus($("l3"), true, "appearance on list after tab focus");
if (kIsMac) {
SpecialPowers.pushPrefEnv({"set": [['accessibility.mouse_focuses_formcontrol', 1]]}, testMacFocusesFormControl);
}
else {
SimpleTest.finish();
}
}
async function testMacFocusesFormControl()
{
await SimpleTest.promiseFocus(window);
testHTMLElements(htmlElementsMacPrefSet, false);
SimpleTest.finish();
}
var htmlElements = [
"<button id='elem'>Button</button>",
"<input id='elem' type='button'>",
"<input id='elem' type='checkbox'>",
"<input id='elem' class='canfocus'>",
"<input id='elem' type='password' class='canfocus'>",
"<textarea id='elem' class='canfocus'></textarea>",
"<select id='elem' class='canfocus'><option>One</select>",
"<select id='elem' rows='5' class='canfocus'><option>One</select>",
"<div id='elem' tabindex='0' class='canfocus' style='width: 10px; height: 10px;'></div>",
"<a href='about:blank' class='canfocus' onclick='return false;'>about:blank</a>",
];
var htmlElementsMacPrefSet = [
"<button id='elem' class='canfocus'>Button</button>",
"<input id='elem' class='canfocus'>",
"<input id='elem' type='button' class='canfocus'>",
"<input id='elem' type='checkbox' class='canfocus'>",
];
function createElement(str) {
let doc = new DOMParser().parseFromSafeString(`<html><body>${str}</body></html>`, "text/html");
return doc.body.firstChild;
}
function testHTMLElements(list, expectedNoRingsOnWin) {
var childwin = frames[0];
var childdoc = childwin.document;
var container = childdoc.getElementById("container");
for (var e = 0; e < list.length; e++) {
// Using innerHTML would be sanitized, so use the DOM parser instead to
// create the elements.
var elem = childdoc.adoptNode(createElement(list[e]));
container.appendChild(elem);
var shouldFocus = !kIsMac || (elem.className == "canfocus");
var ringSize = (shouldFocus ? (expectedNoRingsOnWin ? 2 : 1) : 0) + "px";
var expectedMatchWithMouse = shouldFocus && !expectedNoRingsOnWin;
var mouseRingSize = ringSize;
if (shouldFocus) {
var textControl = (function() {
if (elem.localName == "textarea")
return true;
if (elem.localName == "input")
return elem.type == "text" || elem.type == "password";
return false;
}());
expectedMatchWithMouse = textControl;
mouseRingSize = textControl ? "1px" : "2px";
}
if (elem.localName == "a") {
mouseRingSize = ringSize = "0px";
expectedMatchWithMouse = expectedMatchWithMouse && !kIsMac;
}
synthesizeMouse(elem, 8, 8, { }, childwin);
is(childdoc.activeElement, shouldFocus ? elem : childdoc.body, "mouse click on " + list[e]);
is(childwin.getComputedStyle(elem).outlineWidth, mouseRingSize, "mouse click on " + list[e] + " ring");
is(elem.matches(":-moz-focusring"), expectedMatchWithMouse, "mouse click on " + list[e] + " selector");
if (childdoc.activeElement)
childdoc.activeElement.blur();
ringSize = mouseRingSize;
if (kIsMac && !shouldFocus && elem.localName != "a") {
ringSize = "1px";
}
elem.focus();
is(childdoc.activeElement, elem, "focus() on " + list[e]);
is(childwin.getComputedStyle(elem).outlineWidth, ringSize,
"focus() on " + list[e] + " ring");
childdoc.activeElement.blur();
// Clear out the container for the next test.
while (container.firstChild) {
container.firstChild.remove();
}
}
}
SimpleTest.waitForFocus(initTest);
]]>
</script>
<richlistbox id="l1" class="plain" height="20"/>
<richlistbox id="l2" class="plain" height="20"/>
<richlistbox id="l3" class="plain" height="20"/>
<button id="b1" label="Button"/>
<button id="b2" label="Button"/>
<button id="b3" label="Button"/>
<iframe id="child" src="file_focusrings.html"/>
<body xmlns="http://www.w3.org/1999/xhtml" style="height: 300px; overflow: auto;"/>
</window>
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