script.js

function show_activaton_type(type) {
    console.log("activation with type of " + type);
    let el = document.getElementById(type);
    if (!el)
        return;

    el.style.display = 'block';
}

function activate_navigate() {
    show_activaton_type("launch");
}

function activate_shared(searchParams) {
    show_activaton_type("share");
    const title = searchParams.get("title");
    const text = searchParams.get("text");
    const url = searchParams.get("url");
    document.getElementById("shared_from").innerHTML += "Title: " + title + "<br>";
    text ? document.getElementById("shared_from").innerHTML += "Text: " + text + "<br>": text;
    url ? document.getElementById("shared_from").innerHTML += "Url: " + url + "<br>" : url;
}

document.addEventListener('DOMContentLoaded', ()=> {
  if ('serviceWorker' in navigator) {
    navigator.serviceWorker.register('service-worker.js')
    .then ((reg) => {
      console.log('service worker is registered successfully, ' + location.href);
    }).catch((e) => {
      console.log('service worker registration failed');
    });
  }

  // document.getElementsByClassName('shared')[0].style.visibility =   'hidden';
  // document.getElementsByClassName('filetype')[0].style.visibility = 'hidden';

  // Web Apps start from start_url from the manifest, which is a hint to
  // check whether it is a Web Apps activation or browser navigation.
  if (location.search.length == 0) {
    show_activaton_type("browser");
    return;
  }

  var searchParams = new URLSearchParams(location.search);
  if (location.search.length == 1) {
    const launch_type = searchParams.get("utm_source");
    if (launch_type == "app") {
      show_activaton_type("launch");
      return;
    }
  }

  const activation_type = searchParams.get("activation");

  if (activation_type == "share") {
    activate_shared(searchParams);
  } else if (activation_type == "file") {
    activate_filehandler(searchParams).then((value) => {
      show_activaton_type("file");
      console.log('file handler: ' + value);
    })
  } else {
    show_activaton_type("browser");
  }

  document.getElementById('simple-text-editor').addEventListener('click', (e) => {
    
  });

})