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/* Any copyright is dedicated to the Public Domain.
"use strict";
const { RootMessageHandlerRegistry } = ChromeUtils.importESModule(
);
const { RootMessageHandler } = ChromeUtils.importESModule(
);
/**
* Test that events can be intercepted in the windowglobal-in-root layer.
*/
add_task(async function test_intercepted_event() {
const tab = BrowserTestUtils.addTab(
gBrowser,
);
await BrowserTestUtils.browserLoaded(tab.linkedBrowser);
const browsingContext = tab.linkedBrowser.browsingContext;
const rootMessageHandler = createRootMessageHandler(
"session-id-intercepted_event"
);
const onInterceptedEvent = rootMessageHandler.once(
"event.testEventWithInterception"
);
rootMessageHandler.handleCommand({
moduleName: "event",
commandName: "testEmitEventWithInterception",
destination: {
type: WindowGlobalMessageHandler.type,
id: browsingContext.id,
},
});
const interceptedEvent = await onInterceptedEvent;
is(
interceptedEvent.additionalInformation,
"information added through interception",
"Intercepted event contained additional information"
);
rootMessageHandler.destroy();
gBrowser.removeTab(tab);
});
/**
* Test that events can be canceled in the windowglobal-in-root layer.
*/
add_task(async function test_cancelable_event() {
const tab = BrowserTestUtils.addTab(
gBrowser,
);
await BrowserTestUtils.browserLoaded(tab.linkedBrowser);
const browsingContext = tab.linkedBrowser.browsingContext;
const rootMessageHandler = createRootMessageHandler(
"session-id-cancelable_event"
);
const cancelableEvents = [];
const onCancelableEvent = (name, event) => cancelableEvents.push(event);
rootMessageHandler.on(
"event.testEventCancelableWithInterception",
onCancelableEvent
);
// Emit an event that should be canceled in the windowglobal-in-root layer.
// Note that `shouldCancel` is only something supported for this test event,
// and not a general message handler mechanism to cancel events.
await rootMessageHandler.handleCommand({
moduleName: "event",
commandName: "testEmitEventCancelableWithInterception",
destination: {
type: WindowGlobalMessageHandler.type,
id: browsingContext.id,
},
params: {
shouldCancel: true,
},
});
is(cancelableEvents.length, 0, "No event was received");
// Emit another event which should not be canceled (shouldCancel: false).
await rootMessageHandler.handleCommand({
moduleName: "event",
commandName: "testEmitEventCancelableWithInterception",
destination: {
type: WindowGlobalMessageHandler.type,
id: browsingContext.id,
},
params: {
shouldCancel: false,
},
});
await TestUtils.waitForCondition(() => cancelableEvents.length == 1);
is(cancelableEvents[0].shouldCancel, false, "Expected event was received");
rootMessageHandler.off(
"event.testEventCancelableWithInterception",
onCancelableEvent
);
rootMessageHandler.destroy();
gBrowser.removeTab(tab);
});