chiya/assets/js/app.js

// Include phoenix_html to handle method=PUT/DELETE in forms and buttons.
import "phoenix_html"
// Establish Phoenix Socket and LiveView configuration.
import { Socket } from "phoenix"
import { LiveSocket } from "phoenix_live_view"
import topbar from "../vendor/topbar"
import darkmode from "./darkmode"

let csrfToken = document.querySelector("meta[name='csrf-token']").getAttribute("content")
let liveSocket = new LiveSocket("/live", Socket, { params: { _csrf_token: csrfToken } })

// Show progress bar on live navigation and form submits
topbar.config({ barColors: { 0: "#29d" }, shadowColor: "rgba(0, 0, 0, .3)" })
window.addEventListener("phx:page-loading-start", _info => topbar.show(300))
window.addEventListener("phx:page-loading-stop", _info => topbar.hide())

// connect if there are any LiveViews on the page
liveSocket.connect()

// expose liveSocket on window for web console debug logs and latency simulation:
// >> liveSocket.enableDebug()
// >> liveSocket.enableLatencySim(1000)  // enabled for duration of browser session
// >> liveSocket.disableLatencySim()
window.liveSocket = liveSocket

document.addEventListener("DOMContentLoaded", function() {
    darkmode()

    document
        .querySelectorAll('textarea')
        .forEach(e => e.addEventListener('keydown', function(e) {
          if (e.key == 'Tab') {
            e.preventDefault();
            var start = this.selectionStart;
            var end = this.selectionEnd;

            // set textarea value to: text before caret + tab + text after caret
            this.value = this.value.substring(0, start) +
              "\t" + this.value.substring(end);

            // put caret at right position again
            this.selectionStart =
              this.selectionEnd = start + 1;
          }
        }))
})