fune/toolkit/modules/tests/browser/browser_Finder_overflowed_textarea.js
Brad Werth f64622d129 Bug 1430187 Part 2: Add a test of find-in-page with overflowed textareas. r=mikedeboer
MozReview-Commit-ID: dKXyp826Y5

--HG--
extra : rebase_source : 56801b078992413ac54208b62230d32fa62ce7a9
2018-01-22 13:16:51 -08:00

63 lines
1.9 KiB
JavaScript

/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
add_task(async function test_offscreen_text() {
// Generate URI of a big DOM that contains the target text
// within a textarea at several line positions (to force
// some targets to be overflowed).
const linesToGenerate = 155;
const linesToInsertTargetText = [5, 50, 150];
const targetCount = linesToInsertTargetText.length;
let t = 0;
const TARGET_TEXT = "findthis";
let URI = "<body><textarea>";
for (let i = 0; i < linesToGenerate; i++) {
URI += i + " ";
if (t < targetCount && linesToInsertTargetText[t] == i) {
URI += TARGET_TEXT;
t++;
}
URI += "\n";
}
URI += "</textarea></body>";
await BrowserTestUtils.withNewTab({ gBrowser, url: "data:text/html;charset=utf-8," + encodeURIComponent(URI) },
async function(browser) {
let finder = browser.finder;
let listener = {
onFindResult() {
ok(false, "callback wasn't replaced");
}
};
finder.addResultListener(listener);
function waitForFind() {
return new Promise(resolve => {
listener.onFindResult = resolve;
});
}
// Find each of the targets.
for (let t = 0; t < targetCount; ++t) {
let promiseFind = waitForFind();
if (t == 0) {
finder.fastFind(TARGET_TEXT, false, false);
} else {
finder.findAgain(false, false, false);
}
let findResult = await promiseFind;
is(findResult.result, Ci.nsITypeAheadFind.FIND_FOUND, "Found target " + t);
}
// Find one more time and make sure we wrap.
let promiseFind = waitForFind();
finder.findAgain(false, false, false);
let findResult = await promiseFind;
is(findResult.result, Ci.nsITypeAheadFind.FIND_WRAPPED, "Wrapped to first target");
finder.removeResultListener(listener);
});
});