X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Futil%2Fdialogrunner%2FDialogRunnerI.java;h=1fc41e7c60cec166e33f913e096b9350b364d942;hb=1f41372a2bda3efcc27abaed092495548135b6b4;hp=758d421e11c516b3e208369778e3363c1585db52;hpb=2e02b14ba33c2cf4618f65c831a506f81e621589;p=jalview.git

diff --git a/src/jalview/util/dialogrunner/DialogRunnerI.java b/src/jalview/util/dialogrunner/DialogRunnerI.java
index 758d421..1fc41e7 100644
--- a/src/jalview/util/dialogrunner/DialogRunnerI.java
+++ b/src/jalview/util/dialogrunner/DialogRunnerI.java
@@ -20,24 +20,43 @@
  */
 package jalview.util.dialogrunner;
 
+import java.util.concurrent.Callable;
+
 /**
- * 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
 {
 
   /**
-   * Adds a new response for this dialog, and returns the dialog (this), to allow chaining, eg.
-   * <pre>
-   * dialog.addResponse(newRunResponse(OK_PRessed) { run()...})
-   *     .addResponse(new RunResponse(CANCEL_PRESSED);
-   * </pre>
+   * 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
+   */
+  DialogRunnerI setResponseHandler(Object response, Callable<Void> 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
    */
-  T addResponse(RunResponse action);
+  default void handleResponse(Object response)
+  {
+  }
 }