Make immediate mode the default

Change-Id: I0a1fc0bf6f3de1b7d6975cd87cb7bb65c38dba4e

3 files changed, 24 insertions, 30 deletions

diff --git a/server/src/main/java/com/vaadin/legacy/ui/LegacyAbstractField.java b/server/src/main/java/com/vaadin/legacy/ui/LegacyAbstractField.java
index 402f1fb257..901cb78932 100644
--- a/server/src/main/java/com/vaadin/legacy/ui/LegacyAbstractField.java
+++ b/server/src/main/java/com/vaadin/legacy/ui/LegacyAbstractField.java
@@ -1798,24 +1798,6 @@ public abstract class LegacyAbstractField<T> extends AbstractComponent
         }
     }
 
-    /**
-     * {@inheritDoc}
-     * <p>
-     * Fields are automatically set to immediate if validators have been added.
-     */
-    @Override
-    public boolean isImmediate() {
-        if (getExplicitImmediateValue() != null) {
-            return getExplicitImmediateValue();
-        }
-        // Make field immediate when there is some kind of validation present
-        // (validator or required). This will avoid the UI being in a wrong
-        // state, e.g. user entered valid data but old validation error is still
-        // shown
-        return super.isImmediate() || !getValidators().isEmpty()
-                || isRequired();
-    }
-
     /*
      * (non-Javadoc)
      * 
diff --git a/server/src/main/java/com/vaadin/ui/AbstractComponent.java b/server/src/main/java/com/vaadin/ui/AbstractComponent.java
index 24f1ef098b..61cd991116 100644
--- a/server/src/main/java/com/vaadin/ui/AbstractComponent.java
+++ b/server/src/main/java/com/vaadin/ui/AbstractComponent.java
@@ -39,9 +39,8 @@ import com.vaadin.event.ConnectorActionManager;
 import com.vaadin.event.ContextClickEvent;
 import com.vaadin.event.ContextClickEvent.ContextClickListener;
 import com.vaadin.event.ContextClickEvent.ContextClickNotifier;
-import com.vaadin.legacy.ui.LegacyField;
-import com.vaadin.legacy.ui.LegacyField.ValueChangeEvent;
 import com.vaadin.event.ShortcutListener;
+import com.vaadin.legacy.ui.LegacyField;
 import com.vaadin.server.AbstractClientConnector;
 import com.vaadin.server.AbstractErrorMessage.ContentMode;
 import com.vaadin.server.ComponentSizeValidator;
@@ -455,9 +454,7 @@ public abstract class AbstractComponent extends AbstractClientConnector
     /**
      * Returns the immediate mode of the component.
      * <p>
-     * Certain operations such as adding a value change listener will set the
-     * component into immediate mode if {@link #setImmediate(boolean)} has not
-     * been explicitly called with false.
+     * Since Vaadin 8, the default mode is immediate.
      * 
      * @return true if the component is in immediate mode (explicitly or
      *         implicitly set), false if the component if not in immediate mode
@@ -465,14 +462,8 @@ public abstract class AbstractComponent extends AbstractClientConnector
     public boolean isImmediate() {
         if (explicitImmediateValue != null) {
             return explicitImmediateValue;
-        } else if (hasListeners(ValueChangeEvent.class)) {
-            /*
-             * Automatic immediate for fields that developers are interested
-             * about.
-             */
-            return true;
         } else {
-            return false;
+            return true;
         }
     }
 
diff --git a/server/src/main/java/com/vaadin/ui/Upload.java b/server/src/main/java/com/vaadin/ui/Upload.java
index a61bcf1bd9..0a88b40215 100644
--- a/server/src/main/java/com/vaadin/ui/Upload.java
+++ b/server/src/main/java/com/vaadin/ui/Upload.java
@@ -1194,6 +1194,27 @@ public class Upload extends AbstractComponent implements Component.Focusable,
         return super.getListeners(eventType);
     }
 
+    /**
+     * Returns the immediate mode of the component.
+     * <p>
+     * An immediate mode Upload component displays the browser file choosing
+     * button immediately, whereas a non-immediate upload only shows a Vaadin
+     * button.
+     * <p>
+     * The default mode of an Upload component is non-immediate.
+     *
+     * @return true if the component is in immediate mode, false if the
+     *         component if not in immediate mode
+     */
+    @Override
+    public boolean isImmediate() {
+        if (getExplicitImmediateValue() != null) {
+            return getExplicitImmediateValue();
+        } else {
+            return false;
+        }
+    }
+
     @Override
     protected UploadState getState() {
         return (UploadState) super.getState();