Support Toast positioning.

Author: kevzlou7979

gwt-material/src/main/java/gwt/material/design/client/base/ToastPosition.java

@@ -0,0 +1,19 @@
+package gwt.material.design.client.base;
+
+public enum ToastPosition {
+    DEFAULT(""),
+    TOP_LEFT("top-left"),
+    TOP_RIGHT("top-right"),
+    BOTTOM_LEFT("bottom-left"),
+    BOTTOM_RIGHT("bottom-right");
+
+    private String name;
+
+    ToastPosition(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+}

gwt-material/src/main/java/gwt/material/design/client/events/OpeningEvent.java

@@ -7,9 +7,9 @@
  * 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.

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

@@ -24,6 +24,7 @@
 import com.google.gwt.user.client.DOM;
 import com.google.gwt.user.client.ui.RootPanel;
 import com.google.gwt.user.client.ui.Widget;
+import gwt.material.design.client.base.ToastPosition;
 import gwt.material.design.client.js.JsMaterialElement;
 import gwt.material.design.jquery.client.api.Functions;
 import gwt.material.design.jquery.client.api.JQueryElement;
@@ -137,13 +138,17 @@ public void toast(String msg, String className) {
         toast(msg, DURATION, className);
     }
 
+    public void toast(String msg, int lifeMillis, String className) {
+        toast(msg, lifeMillis, className, ToastPosition.DEFAULT);
+    }
+
     /**
      * @param msg        Message text for your toast.
      * @param lifeMillis how long it should present itself before being removed.
      *                   If value is less than 0 - then it will be treated as unlimited duration
      * @param className  class name to custom style your toast.
      */
-    public void toast(String msg, int lifeMillis, String className) {
+    public void toast(String msg, int lifeMillis, String className, ToastPosition position) {
         String id;
         if (element != null) {
             id = (String) element.attr("id");
@@ -171,7 +176,7 @@ public void toast(String msg, int lifeMillis, String className) {
         element = $(".toast." + id);
         element.attr("id", id);
         //element.toggleClass(className, true);
-
+        element.addClass(position.getName());
         if (widgets != null) {
             RootPanel toast = RootPanel.get(id);
             for (Widget widget : widgets) {