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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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* global EVENT_TEXT_INSERTED, EVENT_TEXT_REMOVED,
nsIAccessibleTextChangeEvent */
'use strict';
function checkTextChangeEvent(event, id, text, start, end, isInserted, isFromUserInput) {
let tcEvent = event.QueryInterface(nsIAccessibleTextChangeEvent);
is(tcEvent.start, start, `Correct start offset for ${prettyName(id)}`);
is(tcEvent.length, end - start, `Correct length for ${prettyName(id)}`);
is(tcEvent.isInserted, isInserted,
`Correct isInserted flag for ${prettyName(id)}`);
is(tcEvent.modifiedText, text, `Correct text for ${prettyName(id)}`);
is(tcEvent.isFromUserInput, isFromUserInput,
`Correct value of isFromUserInput for ${prettyName(id)}`);
}
function* changeText(browser, id, value, events) {
let onEvents = waitForMultipleEvents(events.map(({ isInserted }) => {
let eventType = isInserted ? EVENT_TEXT_INSERTED : EVENT_TEXT_REMOVED;
return { id, eventType };
}));
// Change text in the subtree.
yield ContentTask.spawn(browser, [id, value], ([contentId, contentValue]) => {
content.document.getElementById(contentId).firstChild.textContent =
contentValue;
});
let resolvedEvents = yield onEvents;
events.forEach(({ isInserted, str, offset }, idx) =>
checkTextChangeEvent(resolvedEvents[idx],
id, str, offset, offset + str.length, isInserted, false));
}
function* removeTextFromInput(browser, id, value, start, end) {
let onTextRemoved = waitForEvent(EVENT_TEXT_REMOVED, id);
// Select text and delete it.
yield ContentTask.spawn(browser, [id, start, end], ([contentId, contentStart, contentEnd]) => {
let el = content.document.getElementById(contentId);
el.focus();
el.setSelectionRange(contentStart, contentEnd);
});
yield BrowserTestUtils.sendChar('VK_DELETE', browser);
let event = yield onTextRemoved;
checkTextChangeEvent(event, id, value, start, end, false, true);
}
/**
* Test text change event and its interface:
* - start
* - length
* - isInserted
* - modifiedText
* - isFromUserInput
*/
addAccessibleTask(`
<p id="p">abc</p>
<input id="input" value="input" />`, function*(browser) {
let events = [
{ isInserted: false, str: 'abc', offset: 0 },
{ isInserted: true, str: 'def', offset: 0 }
];
yield changeText(browser, 'p', 'def', events);
events = [{ isInserted: true, str: 'DEF', offset: 2 }];
yield changeText(browser, 'p', 'deDEFf', events);
// Test isFromUserInput property.
yield removeTextFromInput(browser, 'input', 'n', 1, 2);
});
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