{% load fr_display %}
{% if request.user.is_authenticated %}

<div class="dropdown secondary">
<form name="shelve" action="/shelve/" method="post">
    {% csrf_token %}
    <input type="hidden" name="book" value="{{ book.id }}"></input>
    <input type="hidden" name="shelf" value="{% shelve_button_identifier book %}"></input>
    <button class="dropdown-button" type="submit" style="">{% shelve_button_text book %}</button></form><div class="dropdown-arrow" style="display: inline;"><button class="dropdown-button">&dArr;</button>
<div class="dropdown-content">
    <form name="shelve" action="/shelve/" method="post">
        {% csrf_token %}
        <input type="hidden" name="book" value="{{ book.id }}"></input>
        {% for shelf in request.user.shelf_set.all %}
            <button class="secondary" name="shelf" type="submit" value="{{ shelf.identifier }}" {% if shelf in book.shelf_set.all %} disabled {% endif %}>{{ shelf.name }} {% if shelf in book.shelf_set.all %} ✓ {% endif %}</button>
        {% endfor %}
    </form>
</div>
</div>
</div>

{% endif %}