create modal

src/server/views/modal/empty_trash.html

@@ -0,0 +1,31 @@
+<div class="modal" id="emptyTrash">
+  <div class="modal-dialog">
+    <div class="modal-content">
+
+    <form role="form" id="empty-trash-form" onsubmit="return false;">
+
+      <div class="modal-header bg-danger">
+        <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
+        <div class="modal-title">
+          <i class="icon-fw icon-trash"></i> ゴミ箱を空にします
+        </div>
+      </div>
+      <div class="modal-body">
+
+      </div>
+      <div class="modal-footer">
+        <div class="d-flex justify-content-end">
+          <div>
+            <input type="hidden" name="_csrf" value="{{ csrf() }}">
+            <button type="submit" class="m-l-10 btn btn-danger delete-button">
+              <i class="icon-trash" aria-hidden="true"></i>
+              {{ t('Delete') }}
+            </button>
+          </div>
+        </div>
+      </div><!-- /.modal-footer -->
+
+    </form>
+    </div><!-- /.modal-content -->
+  </div><!-- /.modal-dialog -->
+</div><!-- /.modal -->

src/server/views/widget/page_alerts.html

@@ -91,7 +91,7 @@
       <ul class="list-inline">
         {% if user and user.admin %}
         <li>
-          <button href="#" class="btn btn-danger btn-rounded btn-sm" data-target="#trashEmpty" data-toggle="modal"><i class="icon-trash" aria-hidden="true"></i>ゴミ箱を空にする</button>
+          <button href="#" class="btn btn-danger btn-rounded btn-sm" data-target="#emptyTrash" data-toggle="modal"><i class="icon-trash" aria-hidden="true"></i>ゴミ箱を空にする</button>
         </li>
         {% endif %}
         {% if page.isDeleted() and user %}

src/server/views/widget/page_modals.html

@@ -1,4 +1,5 @@
 {% include '../modal/rename.html' %}
+{% include '../modal/empty_trash.html' %}
 {% include '../modal/delete.html' %}
 {% include '../modal/create_template.html' %}
 {% include '../modal/duplicate.html' %}