Merge branch 'release_2.0' of https://github.com/GwtMaterialDesign/gwt-material into release_2.0

Author: kevzlou7979

gwt-material/src/main/java/gwt/material/design/client/ui/MaterialDoubleBox.java

@@ -54,8 +54,7 @@ public MaterialDoubleBox(String placeholder, double value) {
     }
 
     @Override
-    public Double getValue() {
-        double number = getValueAsNumber();
+    protected Double parseNumber(double number) {
         if (Double.isNaN(number)) {
             return null;
         }

gwt-material/src/main/java/gwt/material/design/client/ui/MaterialFloatBox.java

@@ -53,8 +53,7 @@ public MaterialFloatBox(String placeholder, float value) {
     }
 
     @Override
-    public Float getValue() {
-        double number = getValueAsNumber();
+    protected Float parseNumber(double number) {
         if (Double.isNaN(number)) {
             return null;
         }

gwt-material/src/main/java/gwt/material/design/client/ui/MaterialIntegerBox.java

@@ -54,8 +54,7 @@ public MaterialIntegerBox(String placeholder, int value) {
     }
 
     @Override
-    public Integer getValue() {
-        double number = getValueAsNumber();
+    protected Integer parseNumber(double number) {
         if (Double.isNaN(number)) {
             return null;
         }

gwt-material/src/main/java/gwt/material/design/client/ui/MaterialLongBox.java

@@ -54,8 +54,7 @@ public MaterialLongBox(String placeholder, long value) {
     }
 
     @Override
-    public Long getValue() {
-        double number = getValueAsNumber();
+    protected Long parseNumber(double number) {
         if (Double.isNaN(number)) {
             return null;
         }

gwt-material/src/main/java/gwt/material/design/client/ui/MaterialNumberBox.java

@@ -20,7 +20,6 @@
 package gwt.material.design.client.ui;
 
 import com.google.gwt.dom.client.Element;
-import com.google.gwt.uibinder.client.UiConstructor;
 import gwt.material.design.client.base.NumberBox;
 import gwt.material.design.client.base.NumberBox.NumberHandler;
 import gwt.material.design.client.constants.InputType;
@@ -35,7 +34,7 @@
  * @see <a href="http://gwtmaterialdesign.github.io/gwt-material-demo/#!forms">Material MaterialNumberBox</a>
  */
 //@formatter:on
-public class MaterialNumberBox<T> extends MaterialValueBox<T> {
+public abstract class MaterialNumberBox<T> extends MaterialValueBox<T> {
 
     protected MaterialNumberBox() {
         initValueBox(new NumberBox<>(new NumberHandler<>(this)));
@@ -71,21 +70,13 @@ public String getMax() {
         return valueBoxBase.getElement().getAttribute("max");
     }
 
-    @Override
-    public String getText() {
-        return valueBoxBase.getText();
-    }
-
-    /**
-     * This is expected to be overridden in the inherited classes.
-     */
     @Override
     public T getValue() {
-        throw new RuntimeException("MaterialNumberBox#getValue should not be called directly, " +
-            "please make sure you are not using the MaterialNumberBox directly. See MaterialIntegerBox, " +
-            "MaterialDoubleBox, MaterialFloatBox, MaterialLongBox for correct implementations.");
+        return parseNumber(getValueAsNumber());
     }
 
+    protected abstract T parseNumber(double number);
+
     /**
      * Returns the value parsed natively by the browser.
      *
@@ -101,5 +92,4 @@ public double getValueAsNumber() {
     protected native double getValueAsNumber(Element el)/*-{
         return el.valueAsNumber;
     }-*/;
-
 }