invidious/assets/js/playlist_widget.js

"use strict";
var playlist_data = JSON.parse(
  document.getElementById("playlist_data").textContent,
);
var payload = "csrf_token=" + playlist_data.csrf_token;

function add_playlist_video(event) {
  const target = event.target;
  var select = document.querySelector("#playlists");
  var option = select.children[select.selectedIndex];

  var url =
    "/playlist_ajax?action=add_video&redirect=false" +
    "&video_id=" +
    target.getAttribute("data-id") +
    "&playlist_id=" +
    option.getAttribute("data-plid");

  helpers.xhr(
    "POST",
    url,
    { payload: payload },
    {
      on200: function (response) {
        option.textContent = "✓ " + option.textContent;
      },
    },
  );
}

function add_playlist_item(event) {
  event.preventDefault();
  const target = event.target;
  const video_id = target.getAttribute("data-id");
  var card = document.querySelector(`#video-card-${video_id}`);
  card.classList.add("hide");

  var url =
    "/playlist_ajax?action=add_video&redirect=false" +
    "&video_id=" +
    target.getAttribute("data-id") +
    "&playlist_id=" +
    target.getAttribute("data-plid");

  helpers.xhr(
    "POST",
    url,
    { payload: payload },
    {
      onNon200: function (xhr) {
        card.classList.remove("hide");
      },
    },
  );
}

function remove_playlist_item(event) {
  event.preventDefault();
  const target = event.target;
  const video_index = target.getAttribute("data-index");
  const card = document.querySelector(
    `.video-card [data-index="${video_index}"]`,
  );
  card.classList.add("hide");

  var url =
    "/playlist_ajax?action=remove_video&redirect=false" +
    "&set_video_id=" +
    target.getAttribute("data-index") +
    "&playlist_id=" +
    target.getAttribute("data-plid");

  helpers.xhr(
    "POST",
    url,
    { payload: payload },
    {
      onNon200: function (xhr) {
        card.classList.remove("hide");
      },
    },
  );
}