app/views/fields/secret_field/_index.html.erb
<%#
# SecretField Index Partial
%>
<%= javascript_include_tag "secretField" %>
<div data-secret-text="<%= field.data %>" class="cell-data__secret-field">
<span data-secret-masked="true">••••••••••</span>
<button onclick="toggleSecretField(event)" data-secret-toggler>
<svg width="20" height="20">
<use xlink:href="#eye-show" />
</svg>
</button>
<button onclick="copySecretField(event)" data-secret-copier>
<svg width="20" height="20">
<use xlink:href="#icon-copy" />
</svg>
</button>
</div>