framework/ember/app/views/index/index.js

import Ember from 'ember';

export default Ember.View.extend({
  didInsertElement: function() {
    this.updateTitle();
    var scrollTop = this.get('controller.scrollTop');
    $(window).scrollTop(scrollTop);

    var lastDiscussion = this.get('controller.lastDiscussion');
    if (lastDiscussion) {
      var $discussion = $('.index-area .discussion-summary[data-id='+lastDiscussion.get('id')+']');
      if ($discussion.length) {
        var indexTop = $('#header').outerHeight();
        var discussionTop = $discussion.offset().top;
        if (discussionTop < scrollTop + indexTop || discussionTop + $discussion.outerHeight() > scrollTop + $(window).height()) {
          $(window).scrollTop(discussionTop - indexTop);
        }
      }
    }
  },

  willDestroyElement: function() {
    this.set('controller.scrollTop', $(window).scrollTop());
  },

  updateTitle: Ember.observer('controller.searchQuery', function() {
    var q = this.get('controller.searchQuery');
    this.get('controller.controllers.application').set('pageTitle', q ? '"'+q+'"' : '');
  })
});