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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
// Test that the autocomplete popup is resized when needed.
const TEST_URI = `data:text/html;charset=utf-8,<!DOCTYPE html>
<head>
<script>
/* Create prototype-less object so popup does not contain native
* Object prototype properties.
*/
window.xx = Object.create(null, Object.getOwnPropertyDescriptors({
["y".repeat(10)]: 1,
["z".repeat(20)]: 2
}));
window.xxx = 1;
</script>
</head>
<body>Test</body>`;
add_task(async function () {
const hud = await openNewTabAndConsole(TEST_URI);
const { jsterm } = hud;
const { autocompletePopup: popup } = jsterm;
info(`wait for completion suggestions for "xx"`);
await setInputValueForAutocompletion(hud, "xx");
ok(popup.isOpen, "popup is open");
const expectedPopupItems = ["xx", "xxx"];
ok(
hasExactPopupLabels(popup, expectedPopupItems),
"popup has expected items"
);
const originalWidth = popup._tooltip.container.clientWidth;
Assert.greaterOrEqual(
originalWidth,
getLongestLabelWidth(jsterm),
`popup (${originalWidth}px) is at least wider than the width of the longest list item (${getLongestLabelWidth(
jsterm
)}px)`
);
info(`wait for completion suggestions for "xx."`);
let onAutocompleteUpdated = jsterm.once("autocomplete-updated");
EventUtils.sendString(".");
await onAutocompleteUpdated;
ok(
hasExactPopupLabels(popup, ["y".repeat(10), "z".repeat(20)]),
"popup has expected items"
);
const newPopupWidth = popup._tooltip.container.clientWidth;
Assert.greaterOrEqual(
newPopupWidth,
originalWidth,
`The popup width was updated (${originalWidth}px -> ${newPopupWidth}px)`
);
Assert.greaterOrEqual(
newPopupWidth,
getLongestLabelWidth(jsterm),
`popup (${newPopupWidth}px) is at least wider than the width of the longest list item (${getLongestLabelWidth(
jsterm
)}px)`
);
info(`wait for completion suggestions for "xx"`);
onAutocompleteUpdated = jsterm.once("autocomplete-updated");
EventUtils.synthesizeKey("KEY_Backspace");
await onAutocompleteUpdated;
is(
popup._tooltip.container.clientWidth,
originalWidth,
"popup is back to its original width"
);
info("Close autocomplete popup");
await closeAutocompletePopup(hud);
});
function getLongestLabelWidth(jsterm) {
return (
jsterm._inputCharWidth *
getAutocompletePopupLabels(jsterm.autocompletePopup).sort(
(a, b) => a < b
)[0].length
);
}