Elite Dangerous Web Journal hook snippet

hook.js

window.addEventListener("message", (message) => {
    console.log(message)
    if (message.source != window) {
        return // Important, don't trust any other sources
    }
    if (message.data.origin && message.data.origin === 'Elite Dangerous Web Journal') { // Simple check
        console.log('Received event:', message.data.eventName)
        switch (message.data.eventName) {
            case 'enabled': // Message received when the user clicks the extension. Script is injected and ready to communicate.
                console.log('Enabled. Sending getJournal event')
                window.postMessage({ // Ask for initial, full journal data
                    origin: 'Elite Dangerous Web Journal',
                    eventName: 'getJournal'
                })
                break;
            case 'disabled':
                console.log('Extension has been disabled.')
                break
            case 'journal':
                const journal = message.data.data // Full journal, array of events
                console.log('Received initial journal data')
                journal.forEach((journalEvent) => {
                    /*
                    Do what you want with existing journal data
                    */
                    console.log(journalEvent)
                })
                break;
            case 'event':
                const event = message.data.data // Single event
                console.log('Received single event', event.event)
                /*
                Do what you want with live events
                */
                break;
        }
    }
})