Added SearchFinish event on MaterialSearch

Author: kevzlou7979

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

@@ -31,7 +31,7 @@ public class SearchObject implements Serializable {
 
     private IconType icon;
     private String keyword;
-    private String link;
+    private String link = "";
     private Object o;
 
     public SearchObject() {}
@@ -67,6 +67,17 @@ public SearchObject(Object o, String link, String keyword, IconType icon) {
         this.icon = icon;
     }
 
+    /**
+     * Plain search only, you may need to add searchfinish callback instead of redirecting
+     * to any links.
+     * @param icon
+     * @param keyword
+     */
+    public SearchObject(IconType icon, String keyword) {
+        this.icon = icon;
+        this.keyword = keyword;
+    }
+
     public String getKeyword() {
         return keyword;
     }

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

@@ -0,0 +1,50 @@
+package gwt.material.design.client.events;
+
+/*
+ * #%L
+ * GwtMaterial
+ * %%
+ * Copyright (C) 2015 GwtMaterialDesign
+ * %%
+ * 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.
+ * #L%
+ */
+
+
+import com.google.gwt.event.shared.EventHandler;
+import com.google.gwt.event.shared.GwtEvent;
+import com.google.gwt.event.shared.HasHandlers;
+import gwt.material.design.client.events.SearchFinishEvent.SearchFinishHandler;
+
+public class SearchFinishEvent extends GwtEvent<SearchFinishHandler> {
+
+    public interface SearchFinishHandler extends EventHandler {
+        void onSearchFinish(SearchFinishEvent event);
+    }
+
+    public static final Type<SearchFinishHandler> TYPE = new Type<>();
+
+    public static void fire(HasHandlers source) {
+        source.fireEvent(new SearchFinishEvent());
+    }
+
+    @Override
+    public Type<SearchFinishHandler> getAssociatedType() {
+        return TYPE;
+    }
+
+    @Override
+    protected void dispatch(SearchFinishHandler handler) {
+        handler.onSearchFinish(this);
+    }
+}

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

@@ -30,6 +30,7 @@
 import gwt.material.design.client.base.SearchObject;
 import gwt.material.design.client.constants.IconType;
 import gwt.material.design.client.constants.InputType;
+import gwt.material.design.client.events.SearchFinishEvent;
 import gwt.material.design.client.ui.html.Label;
 
 import java.util.ArrayList;
@@ -74,10 +75,32 @@ public class MaterialSearch extends MaterialValueBox<String> implements HasClose
     private Label label = new Label();
     private MaterialIcon iconSearch = new MaterialIcon(IconType.SEARCH);
     private MaterialIcon iconClose = new MaterialIcon(IconType.CLOSE);
+
+    /**
+     * The list of search objects added to MaterialSearchResult panel to
+     * display the lists of result items
+     */
     private List<SearchObject> listSearches = new ArrayList<>();
+    /**
+     * Used to determine the selected searches while matching the keyword to result
+     */
+    private List<SearchObject> tempSearches = new ArrayList<>();
+    /**
+     * Panel to display the result items
+     */
     private MaterialSearchResult searchResult;
+    /**
+     * Link selected to determine easily during the selection event (up / down key events)
+     */
     private MaterialLink selectedLink;
+    /**
+     * Gets the selected object after Search Finish event
+     */
     private SearchObject selectedObject;
+    /**
+     * -1 means that the selected index is not yet selected.
+     * It will increment or decrement once triggere by key up / down events
+     */
     private int curSel = -1;
 
     public MaterialSearch() {
@@ -106,7 +129,9 @@ public void onLoad() {
             @Override
             public void onKeyUp(KeyUpEvent event) {
                 String keyword = getText().toLowerCase();
+                // Clear the panel and temp objects
                 searchResult.clear();
+                tempSearches.clear();
 
                 // Populate the search result items
                 for(final SearchObject obj : getListSearches()) {
@@ -119,20 +144,26 @@ public void onKeyUp(KeyUpEvent event) {
                     link.addClickHandler(new ClickHandler() {
                         @Override
                         public void onClick(ClickEvent event) {
+                            setSelectedObject(obj);
                             reset(obj.getKeyword());
                         }
                     });
-                    // If matches add to search result container
+                    // If matches add to search result container and object to temp searches
                     if (obj.getKeyword().toLowerCase().contains(keyword)){
                         searchResult.add(link);
+                        tempSearches.add(obj);
                     }
                 }
 
                 // Apply selected search
                 if(event.getNativeEvent().getKeyCode() == KeyCodes.KEY_ENTER){
                     if(getCurSel()==-1){
+                        setSelectedObject(tempSearches.get(0));
                         setSelectedLink((MaterialLink) searchResult.getWidget(0));
+                    }else{
+                        setSelectedObject(tempSearches.get(curSel));
                     }
+
                     MaterialLink selLink = getSelectedLink();
                     locateSearch(selLink.getHref());
                     reset(selLink.getText());
@@ -164,6 +195,7 @@ public void onClick(ClickEvent event) {
 
             // Resets the search result panel
             private void reset(String keyword){
+                SearchFinishEvent.fire(MaterialSearch.this);
                 curSel = -1;
                 setText(keyword);
                 searchResult.clear();
@@ -227,13 +259,27 @@ public void setCurSel(int curSel) {
     }
 
     public SearchObject getSelectedObject() {
-        listSearches.get(curSel);
         return selectedObject;
     }
 
     public void setSelectedObject(SearchObject selectedObject) {
         this.selectedObject = selectedObject;
     }
+
+    /**
+     * Gets the tempory search objects
+     * @return
+     */
+    public List<SearchObject> getTempSearches() {
+        return tempSearches;
+    }
+
+    /**
+     * This handler will be triggered when search is finish
+     */
+    public HandlerRegistration addSearchFinishHandler(SearchFinishEvent.SearchFinishHandler handler) {
+        return addHandler(handler, SearchFinishEvent.TYPE);
+    }
 }