app/assets/javascripts/app/views/generic/attachment.jst.eco
<div class="attachments"></div>
<div class="article-attachment">
<% if !@attribute.disabled: %>
<div class="attachmentPlaceholder">
<span class="attachmentPlaceholder-inputHolder fileUpload">
<% uid = _.uniqueId('fileUpload_') %>
<input multiple="multiple" type="file" name="file" id="<%- uid %>">
<label class="attachmentPlaceholder-label" for="<%- uid %>">
<%- @T('select attachment…') %>
</label>
</span>
</div>
<% end %>
<div class="attachmentUpload hide">
<div class="horizontal">
<div class="u-highlight">
<%- @T('Uploading') %> (<span class="js-percentage">0</span>%) ...
</div>
<div class="attachmentUpload-cancel js-cancel">
<%- @Icon('diagonal-cross') %><%- @T('Cancel Upload') %>
</div>
</div>
<div class="attachmentUpload-progressBar" style="width: 0%"></div>
</div>
</div>
<div class="fit dropArea">
<div class="dropArea-inner">
<%- @T('Drop files here') %>
</div>
</div>