ComboBox - Added Hide Search field demo and code blocks.

Author: kevzlou7979

src/main/java/gwt/material/design/demo/client/application/addins/combobox/ComboBoxView.java

@@ -46,7 +46,7 @@ interface Binder extends UiBinder<Widget, ComboBoxView> {
 
     @UiField
     MaterialComboBox<String> comboTimeZone, comboTimeZone1, comboTimeZone2, comboTimeZone3, comboTimeZone4,
-                             comboTimeZone6, comboTimeZone7;
+                             comboTimeZone6, comboTimeZone7, comboTimeHideSearch;
 
     @UiField
     MaterialComboBox<State> comboTimeZone8, comboTimeZone8_1, comboTimeZone9, comboTimeZone9_1, comboTimeZone10,
@@ -68,6 +68,7 @@ interface Binder extends UiBinder<Widget, ComboBoxView> {
     }
 
     protected void populateTimeZones() {
+        addStringItems(comboTimeHideSearch);
         addStringItems(comboTimeZone);
         addStringItemsWithoutGroup(comboTimeZone1);
         addStringItemsWithoutGroup(comboTimeZone2);

src/main/java/gwt/material/design/demo/client/application/addins/combobox/ComboBoxView.ui.xml

@@ -117,6 +117,18 @@
             </m:MaterialColumn>
         </m:MaterialRow>
 
+        <m:MaterialRow addStyleNames="code">
+            <m:MaterialTitle title="Hide Search" description="Set it to true if you want to disable the search field into the combobox"/>
+            <m:MaterialColumn grid="l6 m6 s12">
+                <combobox:MaterialComboBox placeholder="Time Zone" ui:field="comboTimeHideSearch" hideSearch="true" />
+            </m:MaterialColumn>
+            <m:MaterialColumn>
+                <demo:PrettyPre addStyleNames="lang-xml">
+                    &lt;combobox:MaterialComboBox placeholder="Time Zone" ui:field="comboTimeHideSearch" hideSearch="true" />
+                </demo:PrettyPre>
+            </m:MaterialColumn>
+        </m:MaterialRow>
+
         <m:MaterialRow addStyleNames="code">
             <m:MaterialColumn grid="l6 m6 s12">
                 <m:MaterialTitle title="With OptGroup" description="Just like on java way of adding optgroup, we have also added it on UiBinder way."/>