GUAC-901: Allow client display to be scrolled via properties.

guacamole/src/main/webapp/app/client/directives/guacClient.js

@@ -318,6 +318,18 @@ angular.module('client').directive('guacClient', [function guacClient() {
                     client.setClipboard(data);
             });
 
+            /*
+             * SCROLLING
+             */
+
+            $scope.$watch('clientProperties.scrollLeft', function scrollLeftChanged(newValue, oldValue) {
+                main.scrollLeft += newValue - oldValue;
+            });
+
+            $scope.$watch('clientProperties.scrollTop', function scrollTopChanged(newValue, oldValue) {
+                main.scrollTop += newValue - oldValue;
+            });
+
             /*
              * CONNECT / RECONNECT
              */

guacamole/src/main/webapp/app/client/types/ClientProperties.js

@@ -83,6 +83,22 @@ angular.module('client').factory('ClientProperties', [function defineClientPrope
          */
         this.emulateAbsoluteMouse = template.emulateAbsoluteMouse || true;
 
+        /**
+         * The relative Y coordinate of the scroll offset of the display within
+         * the client element.
+         * 
+         * @type Number
+         */
+        this.scrollTop = template.scrollTop || 0;
+
+        /**
+         * The relative X coordinate of the scroll offset of the display within
+         * the client element.
+         * 
+         * @type Number
+         */
+        this.scrollLeft = template.scrollLeft || 0;
+
     };
 
     return ClientProperties;