bug 3127: during upload, warn user if she wants to leave the page (works fine on Firefox/Chrome)

git-svn-id: http://piwigo.org/svn/trunk@29356 68402e56-0260-453c-a942-63ccdbb3a9ee

admin/themes/default/template/photos_add_direct.tpl

@@ -103,6 +103,11 @@ jQuery(document).ready(function(){
       BeforeUpload: function(up, file) {
         console.log('[BeforeUpload]', file);
 
+        // warn user if she wants to leave page while upload is running
+        jQuery(window).bind('beforeunload', function() {
+          return "{/literal}{'Upload in progress'|translate|escape}{literal}";
+        });
+
         // no more change on category/level
         jQuery("select[name=level]").attr("disabled", "disabled");
 
@@ -165,10 +170,12 @@ jQuery(document).ready(function(){
         jQuery(".batchLink").html(sprintf(batch_Label, uploadedPhotos.length));
 
         jQuery(".afterUploadActions").show();
+
+        // user can safely leave page without warning
+        jQuery(window).unbind('beforeunload');
       }
     }
 	});
-
 {/literal}
 });
 {/footer_script}

language/en_UK/admin.lang.php

@@ -981,4 +981,5 @@ $lang['based on'] = 'based on';
 $lang['file name'] = 'file name';
 $lang['date & time'] = 'date & time';
 $lang['width & height'] = 'width & height';
+$lang['Upload in progress'] = 'Upload in progress';
 ?>

language/fr_FR/admin.lang.php

@@ -982,4 +982,5 @@ $lang['based on'] = 'basé sur';
 $lang['file name'] = 'nom de fichier';
 $lang['date & time'] = 'date et heure';
 $lang['width & height'] = 'largeur et hauteur';
-$lang['No and unlock sub-albums'] = 'Déverrouiller ou non les sous-albums';
+$lang['No and unlock sub-albums'] = 'Non, et déverrouiller les sous-albums';
+$lang['Upload in progress'] = 'Transfert en cours...';