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<!DOCTYPE html>
<title>HTMLselectElement Test: events</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<!-- This test is optional because the HTML spec does not require that specific
behaviors are mapped to specific keyboard buttons. -->
<select id="select0">
<button id="select0-button">
<selectedcontent></selectedcontent>
select0-button
</button>
<option>one</option>
<option>two</option>
<option>three</option>
</select>
<select id="select1">
<option>one</option>
<option>
two
<button id="select1-button">select1-button</button>
</option>
<option>three</option>
</select>
<select id="select2">
<option>one</option>
<option>two</option>
<option>three</option>
</select>
<select id="select3">
<option>same</option>
<option>same</option>
</select>
<select id="select4">
<option>one</option>
<option id="select4-option2">two</option>
</select>
<select id="select5WithTabIndex" tabindex="1">
<option>one</option>
<option>two</option>
</select>
<input id="input6"/>
<select id="select7">
<button id="select7-button">
select7-button
</button>
<option>one</option>
<option>two</option>
</select>
<style>
select, ::picker(select) {
appearance: base-select;
}
</style>
<script>
function clickOn(element) {
const actions = new test_driver.Actions();
return actions.pointerMove(0, 0, {origin: element})
.pointerDown({button: actions.ButtonType.LEFT})
.pointerUp({button: actions.ButtonType.LEFT})
.send();
}
promise_test(async (t) => {
const select = document.getElementById("select0");
assert_false(select.matches(':open'));
const selectButtonWatcher = new EventWatcher(t, select, ["mousedown"]);
const selectButtonPromise = selectButtonWatcher.wait_for("mousedown").then((e) => {
assert_false(select.matches(':open'), "Listbox shouldn't have opened yet");
// PreventDefaulting the event here should prevent UA controller code
// on the button part from opening the listbox.
e.preventDefault();
});
const selectWatcher = new EventWatcher(t, select, ["mousedown"]);
const selectPromise = selectWatcher.wait_for("mousedown").then((e) => {
assert_true(e.defaultPrevented, "Event should have been defaultPrevented by select mousedown handler");
assert_false(select.matches(':open'), "Listbox shouldn't have opened, because mousedown event was defaultPrevented.");
});
return Promise.all([selectButtonPromise, selectPromise, clickOn(select)]);
}, "Button controller code should not run if the mousedown event is preventDefaulted.");
// See https://w3c.github.io/webdriver/#keyboard-actions
const KEY_CODE_MAP = {
'Tab': '\uE004',
'Enter': '\uE007',
'Space': '\uE00D',
'ArrowUp': '\uE013',
'ArrowDown': '\uE015',
};
promise_test(async (t) => {
const select = document.getElementById("select1");
await clickOn(select);
assert_true(select.matches(':open'));
const selectButtonWatcher = new EventWatcher(t, select, ["mousedown"]);
const selectButtonPromise = selectButtonWatcher.wait_for("mousedown").then((e) => {
assert_true(select.matches(':open'), "Listbox shouldn't have closed yet");
// PreventDefaulting the event here should prevent UA controller code
// on the listbox part from selecting the option and closing the listbox.
e.preventDefault();
});
const selectWatcher = new EventWatcher(t, select, ["mousedown"]);
const selectPromise = selectWatcher.wait_for("mousedown").then((e) => {
assert_true(e.defaultPrevented, "Event should have been defaultPrevented by select mousedown handler");
assert_true(select.matches(':open'), "Listbox shouldn't have closed, because keydown event was defaultPrevented.");
assert_equals(select.value, "one", "<select> shouldn't have changed value, because keydown event was defaultPrevented.");
});
return Promise.all([selectButtonPromise, selectPromise, clickOn(select)]);
}, "Listbox controller code should not run if the mousedown event is preventDefaulted.");
promise_test(async (t) => {
const select = document.getElementById("select2");
const events = [];
select.addEventListener("input", t.step_func((e) => {
assert_true(e.composed, "input event should be composed.");
events.push('input');
}));
select.addEventListener("change", t.step_func((e) => {
assert_false(e.composed, "change event should not be composed.");
events.push('change');
}));
await clickOn(select);
assert_true(select.matches(':open'));
await test_driver.send_keys(document.activeElement, KEY_CODE_MAP.Enter);
assert_false(select.matches(':open'));
assert_equals(select.value, "one");
assert_array_equals(events, [], "input and change shouldn't fire if value wansn't changed.");
await clickOn(select);
assert_true(select.matches(':open'));
await test_driver.send_keys(document.activeElement, KEY_CODE_MAP.ArrowDown);
assert_equals(select.value, "one", "value shouldn't change when user switches options with arrow key.");
assert_array_equals(events, [], "input event should not fire when user switches options with arrow key.");
await test_driver.send_keys(document.activeElement, KEY_CODE_MAP.Enter);
assert_equals(select.value, "two");
assert_array_equals(events, ['input', 'change'], "input and change should fire after pressing enter.");
}, "<select> should fire input and change events when new option is selected.");
promise_test(async (t) => {
const select = document.getElementById("select3");
const events = [];
select.addEventListener("input", t.step_func((e) => {
assert_true(e.composed, "input event should be composed.");
events.push('input');
}));
select.addEventListener("change", t.step_func((e) => {
assert_false(e.composed, "change event should not be composed.");
events.push('change');
}));
await clickOn(select);
assert_true(select.matches(':open'));
await test_driver.send_keys(select, KEY_CODE_MAP.ArrowDown);
assert_array_equals(events, [], "input event not should have fired after ArrowDown.");
await test_driver.send_keys(select, KEY_CODE_MAP.Enter);
assert_array_equals(events, [], "input and change should not fire after pressing Enter.");
}, "<select> should not fire input and change events when new selected option has the same value as the old.");
promise_test(async (t) => {
const select = document.getElementById("select4");
const selectOption2 = document.getElementById("select4-option2");
let input_event_count = 0;
let change_event_count = 0;
select.addEventListener("input", t.step_func((e) => {
assert_true(e.composed, "input event should be composed");
assert_equals(input_event_count, 0, "input event should not fire twice");
assert_equals(change_event_count, 0, "input event should not fire before change");
input_event_count++;
}));
select.addEventListener("change", t.step_func((e) => {
assert_false(e.composed, "change event should not be composed");
assert_equals(input_event_count, 1, "change event should fire after input");
assert_equals(change_event_count, 0, "change event should not fire twice");
change_event_count++;
}));
await clickOn(select);
assert_true(select.matches(':open'));
await clickOn(selectOption2);
assert_equals(input_event_count, 1, "input event shouldn't fire when selected option didn't change");
assert_equals(change_event_count, 1, "change event shouldn't fire when selected option didn't change");
}, "<select> should fire input and change events when option in listbox is clicked");
promise_test(async() => {
const select = document.getElementById("select2");
await test_driver.send_keys(select, " ");
assert_true(select.matches(':open'), "<Space> should open select");
await test_driver.send_keys(document.activeElement, KEY_CODE_MAP.Enter);
assert_false(select.matches(':open'), "<Enter> should close select");
}, "Check that <Space> opens <select>.");
promise_test(async() => {
const select = document.getElementById("select5WithTabIndex");
await test_driver.send_keys(select, " ");
assert_true(select.matches(':open'), "<Space> should open select");
await test_driver.send_keys(document.activeElement, KEY_CODE_MAP.Enter);
assert_false(select.matches(':open'), "<Enter> should close select");
}, "Check that <Space> opens <select> when <select> specifies tabindex");
</script>
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