first import

sites/all/modules/media/js/plugins/media.upload_multiple.js

@@ -0,0 +1,21 @@
+Drupal.behaviors.mediaUploadMultiple = {};
+
+Drupal.behaviors.mediaUploadMultiple.attach = function (context, settings) {
+  // When the plupload element initializes, it expands the size of the elements
+  // it has created, so we need to resize the browser iframe after it's done.
+  var uploader = jQuery('#edit-upload').pluploadQueue();
+  if (uploader) {
+    // Handle the case in which the uploader has already finished initializing.
+    Drupal.media.browser.resizeIframe();
+    // Handle the case in which the uploader has not yet initialized.
+    uploader.bind("PostInit", Drupal.media.browser.resizeIframe);
+
+    uploader.bind('StateChanged', Drupal.behaviors.mediaUploadMultiple.submit);
+  }
+};
+
+Drupal.behaviors.mediaUploadMultiple.submit = function (uploader, file) {
+  if (uploader.state == 2) {
+    jQuery('#media-add-upload-multiple .form-submit').val(Drupal.t('Loading...'));
+  }
+};