documize/gui/app/templates/components/document/view-revision.hbs

<div class="mt-5">
	{{#unless hasRevisions}}
		<p>No revisions made</p>
	{{else}}
		<div class="row">
			<div class="col-12">
				<div class="form-group">
					{{ui-select tagName="span" class="revision-picker" content=revisions action=(action 'onSelectRevision') optionValuePath="id" optionLabelPath="label"}}
				</div>
			</div>
		</div>
		<div class="row">
			<div class="col-12 view-revision">
				<div class="diff-zone">
					{{#if hasDiff}}
						<div class="wysiwyg">
							{{{diff}}}
						</div>
					{{/if}}
				</div>
			</div>
		</div>
		{{#if canRollback}}
			<div class="row">
				<div class="col-12">
					<div class="form-group">
						<div id="restore-history-button" class="btn btn-danger" data-toggle="modal" data-target="#document-rollback-modal" data-backdrop="static">Restore to this version</div>
					</div>
				</div>
			</div>
		{{/if}}
	{{/unless}}
</div>

<div id="document-rollback-modal" class="modal" tabindex="-1" role="dialog">
	<div class="modal-dialog" role="document">
		<div class="modal-content">
			<div class="modal-header">Restore Section</div>
			<div class="modal-body">
				<p>Are you sure you want to restore this revision?</p>
			</div>
			<div class="modal-footer">
				<button type="button" class="btn btn-outline-secondary" data-dismiss="modal">Cancel</button>
				<button type="button" class="btn btn-success" onclick={{action 'onRollback'}}>Restore</button>
			</div>
		</div>
	</div>
</div>