/* 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";
// Checks for the AccessibleWalkerActor
add_task(async function () {
let {client, walker, accessibility} =
await initAccessibilityFrontForUrl(MAIN_DOMAIN + "doc_accessibility.html");
let a11yWalker = await accessibility.getWalker();
ok(a11yWalker, "The AccessibleWalkerFront was returned");
await accessibility.enable();
let rootNode = await walker.getRootNode();
let a11yDoc = await a11yWalker.getAccessibleFor(rootNode);
ok(a11yDoc, "The AccessibleFront for root doc is created");
let children = await a11yWalker.children();
is(children.length, 1,
"AccessibleWalker only has 1 child - root doc accessible");
is(a11yDoc, children[0],
"Root accessible must be AccessibleWalker's only child");
let buttonNode = await walker.querySelector(walker.rootNode, "#button");
let accessibleFront = await a11yWalker.getAccessibleFor(buttonNode);
checkA11yFront(accessibleFront, {
name: "Accessible Button",
role: "pushbutton"
});
let ancestry = await a11yWalker.getAncestry(accessibleFront);
is(ancestry.length, 1, "Button is a direct child of a root document.");
is(ancestry[0].accessible, a11yDoc,
"Button's only ancestor is a root document");
is(ancestry[0].children.length, 3,
"Root doc should have correct number of children");
ok(ancestry[0].children.includes(accessibleFront),
"Button accessible front is in root doc's children");
let browser = gBrowser.selectedBrowser;
// Ensure name-change event is emitted by walker when cached accessible's name
// gets updated (via DOM manipularion).
await emitA11yEvent(a11yWalker, "name-change",
(front, parent) => {
checkA11yFront(front, { name: "Renamed" }, accessibleFront);
checkA11yFront(parent, { }, a11yDoc);
},
() => ContentTask.spawn(browser, null, () =>
content.document.getElementById("button").setAttribute(
"aria-label", "Renamed")));
// Ensure reorder event is emitted by walker when DOM tree changes.
let docChildren = await a11yDoc.children();
is(docChildren.length, 3, "Root doc should have correct number of children");
await emitA11yEvent(a11yWalker, "reorder",
front => checkA11yFront(front, { }, a11yDoc),
() => ContentTask.spawn(browser, null, () => {
let input = content.document.createElement("input");
input.type = "text";
input.title = "This is a tooltip";
input.value = "New input";
content.document.body.appendChild(input);
}));
docChildren = await a11yDoc.children();
is(docChildren.length, 4, "Root doc should have correct number of children");
// Ensure destory event is emitted by walker when cached accessible's raw
// accessible gets destroyed.
await emitA11yEvent(a11yWalker, "accessible-destroy",
destroyedFront => checkA11yFront(destroyedFront, { }, accessibleFront),
() => ContentTask.spawn(browser, null, () =>
content.document.getElementById("button").remove()));
let shown = await a11yWalker.highlightAccessible(docChildren[0]);
ok(shown, "AccessibleHighlighter highlighted the node");
shown = await a11yWalker.highlightAccessible(a11yDoc);
ok(!shown, "AccessibleHighlighter does not highlight an accessible with no bounds");
await a11yWalker.unhighlight();
info("Checking AccessibleWalker picker functionality");
ok(a11yWalker.pick, "AccessibleWalker pick method exists");
ok(a11yWalker.pickAndFocus, "AccessibleWalker pickAndFocus method exists");
ok(a11yWalker.cancelPick, "AccessibleWalker cancelPick method exists");
let onPickerEvent = a11yWalker.once("picker-accessible-hovered");
await a11yWalker.pick();
await BrowserTestUtils.synthesizeMouseAtCenter("#h1", { type: "mousemove" }, browser);
let acc = await onPickerEvent;
checkA11yFront(acc, { name: "Accessibility Test" }, docChildren[0]);
onPickerEvent = a11yWalker.once("picker-accessible-previewed");
await BrowserTestUtils.synthesizeMouseAtCenter("#h1", { shiftKey: true }, browser);
acc = await onPickerEvent;
checkA11yFront(acc, { name: "Accessibility Test" }, docChildren[0]);
onPickerEvent = a11yWalker.once("picker-accessible-canceled");
await BrowserTestUtils.synthesizeKey("VK_ESCAPE", { type: "keydown" }, browser);
await onPickerEvent;
onPickerEvent = a11yWalker.once("picker-accessible-hovered");
await a11yWalker.pick();
await BrowserTestUtils.synthesizeMouseAtCenter("#h1", { type: "mousemove" }, browser);
await onPickerEvent;
onPickerEvent = a11yWalker.once("picker-accessible-picked");
await BrowserTestUtils.synthesizeMouseAtCenter("#h1", { }, browser);
acc = await onPickerEvent;
checkA11yFront(acc, { name: "Accessibility Test" }, docChildren[0]);
await a11yWalker.cancelPick();
info("Checking document-ready event fired by walker when top level accessible " +
"document is recreated.");
let reloaded = BrowserTestUtils.browserLoaded(browser);
let documentReady = a11yWalker.once("document-ready");
browser.reload();
await reloaded;
await documentReady;
await accessibility.disable();
await waitForA11yShutdown();
await client.close();
gBrowser.removeCurrentTab();
});