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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /screen-capture/capture-controller-event-target.https.window.html - WPT Dashboard Interop Dashboard
'use strict';
const controller = new CaptureController();
const type = 'my-event-type';
const listeners = {};
const listener_count = 10;
for (let i = 0; i < listener_count; i++) {
listeners[i] = {
callback: (event) => {
assert_equals(event.type, type, `Event type sent to listener ${i}`);
listeners[i].execution_count++;
}
};
}
test(() => {
for (const i in listeners) {
listeners[i].execution_count = 0;
controller.addEventListener(type, listeners[i].callback);
}
controller.dispatchEvent(new Event(type));
for (const i in listeners) {
assert_equals(
listeners[i].execution_count, 1,
`Callback execution count for listener ${i}`);
}
}, 'Registering listeners on CaptureController and dispatching an event.');
test(() => {
for (const i in listeners) {
listeners[i].execution_count = 0;
}
controller.dispatchEvent(new Event(type));
controller.dispatchEvent(new Event(type));
controller.dispatchEvent(new Event(type));
for (const i in listeners) {
assert_equals(
listeners[i].execution_count, 3,
`Callback execution count for listener ${i}`);
}
}, 'Dispatching an multiple events to CaptureController.');
test(() => {
for (const i in listeners) {
listeners[i].execution_count = 0;
if (i % 3) {
listeners[i].removed = false;
} else {
listeners[i].removed = true;
controller.removeEventListener(type, listeners[i].callback);
};
}
controller.dispatchEvent(new Event(type));
controller.dispatchEvent(new Event(type));
for (const i in listeners) {
assert_equals(
listeners[i].execution_count, listeners[i].removed ? 0 : 2,
`Callback execution count for listener ${i}`);
}
}, 'Unregistering listeners from CaptureController and dispatching an event.');