add importScreen

static/js/importScreen.js

@@ -0,0 +1,47 @@
+'use strict';
+
+oml.ui.importScreen = function() {
+
+    var that = Ox.Element()
+        .attr({id: 'importScreen'})
+        .css({
+            position: 'absolute',
+            left: 0,
+            top: 0,
+            right: 0,
+            bottom: 0,
+            backgroundColor: 'rgba(0, 0, 0, 0.5)',
+            zIndex: 1000
+        })
+        .on({
+            click: function() {
+                that.remove();
+            },
+            dragleave: function() {
+                that.remove();
+            }
+        });
+
+    Ox.Element()
+        .css({
+            position: 'absolute',
+            left: 0,
+            top: 0,
+            right: 0,
+            bottom: 0,
+            width: 128,
+            height: 16,
+            padding: '8px 0',
+            borderRadius: 8,
+            margin: 'auto',
+            background: 'rgba(255, 255, 255, 0.9)',
+            fontSize: 13,
+            color: 'rgb(0, 0, 0)',
+            textAlign: 'center'
+        })
+        .text(Ox._('Import Books'))
+        .appendTo(that);
+
+    return that;
+
+};