Implement a new DateField based on LocalDate

Change-Id: I342a0ebd8562b2c0ab4deb3ed918ebfe9ee2f932

4 files changed, 280 insertions, 0 deletions

diff --git a/client/src/main/java/com/vaadin/client/connectors/fields/DateFieldConnector.java b/client/src/main/java/com/vaadin/client/connectors/fields/DateFieldConnector.java
new file mode 100644
index 0000000000..e07e66a3a5
--- /dev/null
+++ b/client/src/main/java/com/vaadin/client/connectors/fields/DateFieldConnector.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.vaadin.client.connectors.fields;
+
+import com.google.gwt.event.dom.client.ChangeEvent;
+import com.google.gwt.event.dom.client.ChangeHandler;
+import com.google.gwt.user.client.ui.TextBox;
+import com.vaadin.client.communication.StateChangeEvent;
+import com.vaadin.client.ui.AbstractComponentConnector;
+import com.vaadin.shared.ui.Connect;
+import com.vaadin.shared.ui.Connect.LoadStyle;
+import com.vaadin.shared.ui.components.field.DateFieldServerRpc;
+import com.vaadin.shared.ui.components.field.DateFieldState;
+
+@Connect(value = com.vaadin.ui.components.field.DateField.class, loadStyle = LoadStyle.EAGER)
+public class DateFieldConnector extends AbstractComponentConnector {
+
+    @Override
+    protected void init() {
+        getWidget().addChangeHandler(new ChangeHandler() {
+
+            @Override
+            public void onChange(ChangeEvent event) {
+                String value = getWidget().getValue();
+                value = (value == null) ? "" : value.trim();
+                //TODO validation
+
+                getRpcProxy(DateFieldServerRpc.class)
+                        .setDate(value);
+            }
+        });
+    }
+
+    @Override
+    public DateFieldState getState() {
+        return (DateFieldState) super.getState();
+    }
+
+    @Override
+    public TextBox getWidget() {
+        return (TextBox) super.getWidget();
+    }
+
+    @Override
+    public void onStateChanged(StateChangeEvent stateChangeEvent) {
+        // TODO Split into separate @OnStateChanged methods
+        super.onStateChanged(stateChangeEvent);
+
+        final TextBox w = getWidget();
+        final DateFieldState state = getState();
+
+        w.setReadOnly(state.readOnly);
+
+        w.getElement().setAttribute("placeholder", "DD-MM-YYYY");
+        w.getElement().setAttribute("maxlength", "10");
+        w.setValue(state.value);
+
+    }
+}
diff --git a/server/src/main/java/com/vaadin/ui/components/field/DateField.java b/server/src/main/java/com/vaadin/ui/components/field/DateField.java
new file mode 100644
index 0000000000..735adf17de
--- /dev/null
+++ b/server/src/main/java/com/vaadin/ui/components/field/DateField.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.vaadin.ui.components.field;
+
+import com.vaadin.event.ConnectorEventListener;
+import com.vaadin.event.FieldEvents.BlurEvent;
+import com.vaadin.event.FieldEvents.FocusEvent;
+import com.vaadin.event.handler.Handler;
+import com.vaadin.event.handler.Registration;
+import com.vaadin.shared.ui.components.field.DateFieldServerRpc;
+import com.vaadin.shared.ui.components.field.DateFieldState;
+import com.vaadin.ui.AbstractComponent;
+import com.vaadin.ui.Component;
+import com.vaadin.ui.components.HasValue;
+import com.vaadin.ui.declarative.DesignContext;
+import com.vaadin.util.ReflectTools;
+import org.jsoup.nodes.Element;
+
+import java.lang.reflect.Method;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.time.temporal.TemporalQueries;
+
+/**
+ * Simplest date input components.
+ * 
+ * @author Vaadin Ltd.
+ */
+public abstract class DateField extends AbstractComponent
+        implements HasValue<LocalDate> {
+
+    private static final DateTimeFormatter FORMATTER = DateTimeFormatter.ofPattern("dd-MM-uuuu");
+
+    public static abstract class LocalDateChangeEvent extends Component.Event {
+        public LocalDateChangeEvent(Component source) {
+            super(source);
+        }
+        /**
+         * @return the content of the field after the
+         *         {@link LocalDateChangeEvent}
+         */
+        public abstract LocalDate getLocalDate();
+
+    }
+    public interface LocalDateChangeListener extends ConnectorEventListener {
+        public static String EVENT_ID = "ie";
+        public static Method EVENT_METHOD = ReflectTools.findMethod(
+                LocalDateChangeListener.class, "localDateChange", LocalDateChangeEvent.class);
+
+        /**
+         * This method is called repeatedly while the date is edited by a user.
+         *
+         * @param event
+         *            the event providing details of the change
+         */
+        public void localDateChange(LocalDateChangeEvent event);
+
+    }
+
+    public DateField() {
+        registerRpc(new DateFieldServerRpc() {
+
+            @Override
+            public void blur() {
+                fireEvent(new BlurEvent(DateField.this));
+            }
+
+            @Override
+            public void focus() {
+                fireEvent(new FocusEvent(DateField.this));
+            }
+
+            @Override
+            public void setDate(String value) {
+                if (!isReadOnly()) {
+                    LocalDate localDate = FORMATTER.parse(value,TemporalQueries.localDate());
+                    setValue(localDate);
+                    fireEvent(new LocalDateChangeEvent(DateField.this) {
+                        @Override
+                        public LocalDate getLocalDate() {
+                            return localDate;
+                        }
+                    });
+                }
+            }
+        });
+    }
+
+    @Override
+    protected DateFieldState getState() {
+        return (DateFieldState) super.getState();
+    }
+
+    @Override
+    protected DateFieldState getState(boolean markAsDirty) {
+        return (DateFieldState) super.getState(markAsDirty);
+    }
+
+
+
+    @Override
+    public void setValue(LocalDate date) {
+        DateFieldState state = getState();
+        state.value = date.format(FORMATTER);
+    }
+
+    @Override
+    public LocalDate getValue() {
+        DateFieldState state = getState(false);
+        return FORMATTER.parse(state.value, TemporalQueries.localDate());
+    }
+
+    @Override
+    public Registration onChange(Handler<LocalDate> handler) {
+        LocalDateChangeListener l = e -> handler
+                .handleEvent(new com.vaadin.event.handler.Event<LocalDate>(this,
+                        e.getLocalDate(), true));
+
+        addListener(LocalDateChangeListener.EVENT_ID, LocalDateChangeEvent.class, l,
+                LocalDateChangeListener.EVENT_METHOD);
+
+        return () -> removeListener(LocalDateChangeEvent.class, l);
+    }
+
+
+    @Override
+    public void readDesign(Element design, DesignContext designContext) {
+        super.readDesign(design, designContext);
+    }
+
+}
diff --git a/shared/src/main/java/com/vaadin/shared/ui/components/field/DateFieldServerRpc.java b/shared/src/main/java/com/vaadin/shared/ui/components/field/DateFieldServerRpc.java
new file mode 100644
index 0000000000..9e2e9328a1
--- /dev/null
+++ b/shared/src/main/java/com/vaadin/shared/ui/components/field/DateFieldServerRpc.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.vaadin.shared.ui.components.field;
+
+import com.vaadin.shared.communication.FieldRpc.FocusAndBlurServerRpc;
+
+public interface DateFieldServerRpc extends FocusAndBlurServerRpc {
+
+    void setDate(String value);
+}
diff --git a/shared/src/main/java/com/vaadin/shared/ui/components/field/DateFieldState.java b/shared/src/main/java/com/vaadin/shared/ui/components/field/DateFieldState.java
new file mode 100644
index 0000000000..525e21d694
--- /dev/null
+++ b/shared/src/main/java/com/vaadin/shared/ui/components/field/DateFieldState.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.shared.ui.components.field;
+
+import com.vaadin.shared.AbstractFieldState;
+import com.vaadin.shared.annotations.NoLayout;
+
+public class DateFieldState extends AbstractFieldState {
+    {
+        primaryStyleName = "v-datefield";
+    }
+
+    /*
+     * Year field
+     */
+    @NoLayout
+    public String value;
+
+    /**
+     * The prompt to display in an empty field. Null when disabled.
+     */
+    @NoLayout
+    public String placeholder = "DD-MM-YYYY";
+
+}