Refresh the all apps container search result when apps are installed

b/30102209

> After user comes back from the play store after installing
the app that didn't exist when searched, the app will now be
shown in the filtered search result list.

Change-Id: Ia5fe501596127a7401928e5db2d6f425ad753701

src/com/android/launcher3/allapps/AllAppsSearchBarController.java

@@ -46,6 +46,7 @@ public abstract class AllAppsSearchBarController
     protected AlphabeticalAppsList mApps;
     protected Callbacks mCb;
     protected ExtendedEditText mInput;
+    private String mQuery;
 
     protected DefaultAppSearchAlgorithm mSearchAlgorithm;
     protected InputMethodManager mInputMethodManager;
@@ -94,16 +95,25 @@ public abstract class AllAppsSearchBarController
 
     @Override
     public void afterTextChanged(final Editable s) {
-        String query = s.toString();
-        if (query.isEmpty()) {
+        mQuery = s.toString();
+        if (mQuery.isEmpty()) {
             mSearchAlgorithm.cancel(true);
             mCb.clearSearchResult();
         } else {
             mSearchAlgorithm.cancel(false);
-            mSearchAlgorithm.doSearch(query, mCb);
+            mSearchAlgorithm.doSearch(mQuery, mCb);
         }
     }
 
+    protected void refreshSearchResult() {
+        if (mQuery == null) {
+            return;
+        }
+        // If play store continues auto updating an app, we want to show partial result.
+        mSearchAlgorithm.cancel(false);
+        mSearchAlgorithm.doSearch(mQuery, mCb);
+    }
+
     @Override
     public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
         // Skip if it's not the right action
@@ -155,6 +165,7 @@ public abstract class AllAppsSearchBarController
      * Resets the search bar state.
      */
     public void reset() {
+        mQuery = null;
         unfocusSearchField();
         mCb.clearSearchResult();
         mInput.setText("");