How to extend WordPress Media Library [Updated Version 2022]

var frame = wp.media.view.MediaFrame.Post;
wp.media.view.MediaFrame.Post = frame.extend({
  initialize: function () {
    frame.prototype.initialize.apply(this, arguments);

    var State = wp.media.controller.State.extend({
      insert: function () {
        console.log("Something...");
        this.frame.close();
      }
    });

    this.states.add([
      new State({
        id: "ademedia",
        search: false,
        title: "Ade Media"
      })
    ]);

    //on render
    this.on("content:render:ademedia", this.renderAdemediaContent, this);
  },
  browseRouter: function (routerView) {
    routerView.set({
      upload: {
        text: wp.media.view.l10n.uploadFilesTitle,
        priority: 20
      },
      ademedia: {
        text: "Ade Media",
        priority: 30
      },
      browse: {
        text: wp.media.view.l10n.mediaLibraryTitle,
        priority: 40
      }
    });
  },
  renderAdemediaContent: function () {
    var AdemediaContent = wp.Backbone.View.extend({
      tagName: "div",
      className: "ademediacontent",
      template: wp.template("ademedia"),
      active: !1,
      toolbar: null,
      frame: null
    });

    var view = new AdemediaContent();

    this.content.set(view);
  }
});