From 5c921be9b94c4944b00fb767a32cbb3fd97e59e5 Mon Sep 17 00:00:00 2001
From: Joonas Lehtinen <joonas.lehtinen@itmill.com>
Date: Mon, 19 May 2008 08:58:08 +0000
Subject: [PATCH] Fixes #1661

svn changeset:4539/svn branch:trunk
---
 .../toolkit/tests/tickets/Ticket846.java      | 86 ++++++++++---------
 src/com/itmill/toolkit/ui/AbstractField.java  | 51 +++++++++--
 2 files changed, 91 insertions(+), 46 deletions(-)

diff --git a/src/com/itmill/toolkit/tests/tickets/Ticket846.java b/src/com/itmill/toolkit/tests/tickets/Ticket846.java
index 8fa5bab992..75066890f4 100644
--- a/src/com/itmill/toolkit/tests/tickets/Ticket846.java
+++ b/src/com/itmill/toolkit/tests/tickets/Ticket846.java
@@ -1,6 +1,5 @@
 package com.itmill.toolkit.tests.tickets;
 
-
 import com.itmill.toolkit.Application;
 import com.itmill.toolkit.data.Validator;
 import com.itmill.toolkit.data.util.MethodProperty;
@@ -10,45 +9,50 @@ import com.itmill.toolkit.ui.Window;
 
 public class Ticket846 extends Application {
 
-	public void init() {
-
-		final Window mainWin = new Window("Test app for #846");
-		setMainWindow(mainWin);
-
-		final TextField tx = new TextField("Integer");
-		mainWin.addComponent(tx);
-		tx.setImmediate(true);
-		tx.addValidator(new Validator() {
-
-			public boolean isValid(Object value) {
-				try {
-					Integer.parseInt("" + value);
-					return true;
-				} catch (NumberFormatException e) {
-					return false;
-				}
-			}
-
-			public void validate(Object value) throws InvalidValueException {
-				if (!isValid(value))
-					throw new InvalidValueException(value + " is not a number");
-			}
-		});
-		
-		final String[] visibleProps = {"required","invalidAllowed","readOnly","readThrough","invalidCommitted"}; 
-		for (int i=0;i<visibleProps.length; i++ ) {
-			Button b = new Button(visibleProps[i],new MethodProperty(tx,visibleProps[i]));
-			b.setImmediate(true);
-			mainWin.addComponent(b);
-		}
-
-		mainWin.addComponent(new Button("Validate integer",
-				new Button.ClickListener() {
-					public void buttonClick(
-							com.itmill.toolkit.ui.Button.ClickEvent event) {
-						mainWin.showNotification("The field is " + (tx.isValid()?"":"not ") + "valid");
-					};
-				}));
-	}
+    public void init() {
+
+        final Window mainWin = new Window("Test app for #846");
+        setMainWindow(mainWin);
+
+        final TextField tx = new TextField("Integer");
+        mainWin.addComponent(tx);
+        tx.setImmediate(true);
+        tx.addValidator(new Validator() {
+
+            public boolean isValid(Object value) {
+                try {
+                    Integer.parseInt("" + value);
+                    return true;
+                } catch (NumberFormatException e) {
+                    return false;
+                }
+            }
+
+            public void validate(Object value) throws InvalidValueException {
+                if (!isValid(value)) {
+                    throw new InvalidValueException(value + " is not a number");
+                }
+            }
+        });
+
+        final String[] visibleProps = { "required", "invalidAllowed",
+                "readOnly", "readThrough", "invalidCommitted",
+                "validationVisible" };
+        for (int i = 0; i < visibleProps.length; i++) {
+            Button b = new Button(visibleProps[i], new MethodProperty(tx,
+                    visibleProps[i]));
+            b.setImmediate(true);
+            mainWin.addComponent(b);
+        }
+
+        mainWin.addComponent(new Button("Validate integer",
+                new Button.ClickListener() {
+                    public void buttonClick(
+                            com.itmill.toolkit.ui.Button.ClickEvent event) {
+                        mainWin.showNotification("The field is "
+                                + (tx.isValid() ? "" : "not ") + "valid");
+                    };
+                }));
+    }
 
 }
diff --git a/src/com/itmill/toolkit/ui/AbstractField.java b/src/com/itmill/toolkit/ui/AbstractField.java
index 7fef394a97..fb251d70b6 100644
--- a/src/com/itmill/toolkit/ui/AbstractField.java
+++ b/src/com/itmill/toolkit/ui/AbstractField.java
@@ -110,6 +110,11 @@ public abstract class AbstractField extends AbstractComponent implements Field,
      */
     private boolean required = false;
 
+    /**
+     * Is automatic validation enabled.
+     */
+    private boolean validationVisible = true;
+
     /* Component basics ************************************************ */
 
     /*
@@ -691,12 +696,14 @@ public abstract class AbstractField extends AbstractComponent implements Field,
      */
     public ErrorMessage getErrorMessage() {
 
-        // Check validation errors
+        // Check validation errors only if automatic validation is enabled
         ErrorMessage validationError = null;
-        try {
-            validate();
-        } catch (Validator.InvalidValueException e) {
-            validationError = e;
+        if (isValidationVisible()) {
+            try {
+                validate();
+            } catch (Validator.InvalidValueException e) {
+                validationError = e;
+            }
         }
 
         // Check if there are any systems errors
@@ -976,4 +983,38 @@ public abstract class AbstractField extends AbstractComponent implements Field,
         requestRepaint();
     }
 
+    /**
+     * Is automatic, visible validation enabled?
+     * 
+     * If automatic validation is enabled, any validators connected to this
+     * component are evaluated while painting the component and potential error
+     * messages are sent to client. If the automatic validation is turned off,
+     * isValid() and validate() methods still work, but one must show the
+     * validation in their own code.
+     * 
+     * @return True, if automatic validation is enabled.
+     */
+    public boolean isValidationVisible() {
+        return validationVisible;
+    }
+
+    /**
+     * Enable or disable automatic, visible validation.
+     * 
+     * If automatic validation is enabled, any validators connected to this
+     * component are evaluated while painting the component and potential error
+     * messages are sent to client. If the automatic validation is turned off,
+     * isValid() and validate() methods still work, but one must show the
+     * validation in their own code.
+     * 
+     * @param validateAutomatically
+     *                True, if automatic validation is enabled.
+     */
+    public void setValidationVisible(boolean validateAutomatically) {
+        if (validationVisible != validateAutomatically) {
+            requestRepaint();
+            validationVisible = validateAutomatically;
+        }
+    }
+
 }
\ No newline at end of file
-- 
2.39.5