粘贴发送优化

@@ -4,10 +4,9 @@
  * @date: 2017/03/09
  */
 
-/* global gDomains injected from client.hbs*/
+/* global gDomains injected from client.hbs*/ // eslint-disable-line
 var $ = require('yoho-jquery');
 var Handlebars = require('yoho-handlebars');
-var config = require('../../../config/common');
 
 // dialog html
 var $view = '<div class="mask-dialog preview-dialog">' +
@@ -35,7 +34,9 @@ var $viewHbs = Handlebars.compile($view);
  * @param cb 上传成功的回调
  */
 function Paste(sl, cb) {
-    if (typeof sl !== 'string') { return; }
+    if (typeof sl !== 'string') {
+        return;
+    }
     this.$el = document.querySelector(sl);
     this.formData = null;
     this.uploadCb = cb;
@@ -143,7 +144,12 @@ Paste.prototype = {
     },
 
     open: function() {
+        var dh, vh = $(window).height();
+        var $main = $('.preview-dialog .dialog-main');
+
         this.$preview.show();
+        dh = $main.height();
+        $main.css('top', (vh - dh - 40) / 2);
     },
 
     close: function() {

@@ -5,7 +5,7 @@
     top: 0;
     width: 100%;
     height: 100%;
-    
+
     .dialog-mask {
         position: fixed;
         top: 0;
@@ -15,13 +15,12 @@
         z-index: 1070;
         background-color: #000;
         filter: alpha(opacity=50);
-        opacity: .4;
+        opacity: 0.4;
         -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";
     }
 
     .dialog-main {
         position: relative;
-        top: 50px;
         width: 600px;
         padding: 20px;
         z-index: 1100;
@@ -55,7 +54,6 @@
                 max-height: 400px;
                 border: 1px solid #eee;
             }
-
         }
 
         .foot-part {
@@ -82,7 +80,6 @@
             .cancel-btn {
                 color: #000;
             }
-
         }
     }
 }