X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fjalview%2Futil%2Fdialogrunner%2FDialogRunnerI.java;h=fde80f7843a52154c51915df68f1b41a79e91ed0;hb=3d3cc73c14a48c9af73bf0a33a4897b37a66856b;hp=aaeb30448e52b96ea2bee5fc53d00940e41dc433;hpb=be9359e9a28efb6aade9bdac054d76b4f9452c47;p=jalview.git

diff --git a/src/jalview/util/dialogrunner/DialogRunnerI.java b/src/jalview/util/dialogrunner/DialogRunnerI.java
index aaeb304..fde80f7 100644
--- a/src/jalview/util/dialogrunner/DialogRunnerI.java
+++ b/src/jalview/util/dialogrunner/DialogRunnerI.java
@@ -21,21 +21,38 @@
 package jalview.util.dialogrunner;
 
 /**
- * functional pattern for blocking dialog response handling
+ * An interface for blocking dialog response handling. This is motivated by
+ * JalviewJS - when running as Javascript, there is only a single thread, and
+ * blocking dialogs have to be responsible for performing any actions required
+ * for user responses.
  * 
  * @author jprocter
  *
  */
-public interface DialogRunnerI<T extends DialogRunnerI>
+public interface DialogRunnerI
 {
 
   /**
-   * define a new response for this dialog. eg. dialog.response(new
-   * RunResponse(OK_PRessed) { run()...}).response(new RunResponse(CANCEL_PRESSED)
-   * { ... });
+   * Sets the action to be performed when the dialog returns the given response.
+   * Note this also handles <code>int</code>-valued responses, which will be
+   * converted to <code>Integer</code> when this method is invoked.
    * 
+   * @param response
    * @param action
-   * @return the dialog
+   * @return
    */
-  T response(RunResponse action);
+  DialogRunnerI setResponseHandler(Object response, Runnable action);
+
+  /**
+   * Runs the registered handler (if any) for the given response. The default
+   * action is to do nothing. Typically an action will be need on 'OK' or other
+   * positive selection in the dialog. An action might in some cases also be
+   * needed for a 'Cancel' response.
+   * 
+   * @param response
+   * @return
+   */
+  default void handleResponse(Object response)
+  {
+  }
 }