beaverjs/dist/ContextEventHandler.js

An abstraction around WebExtension messaging

import { BaseEventHandler } from './BaseEventHandler';
import { Destination } from './destination';
import { listen } from './listeners';
export class ContextEventHandler extends BaseEventHandler {
    emitBackground(key, data) {
        return this.emit(key, data, Destination.Background);
    }
    emitContent(key, data) {
        return this.emit(key, data, Destination.Content);
    }
    deserialize(serialized) {
        return { data: serialized.data, type: serialized.event };
    }
    sendEvent(serialized, destination) {
        destination !== null && destination !== void 0 ? destination : (destination = Destination.Passthrough);
        postMessage({ data: serialized, destination }, '*');
    }
    serialize(type, data) {
        return { event: type, data };
    }
    setup() {
        listen({
            thisActor: 'context',
            listenFrom: new Set(['content']),
            onMessage: (msg, sender) => {
                this.handleSerialized(msg.data, sender);
            },
        });
    }
}
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