Merging search bar with all apps

Change-Id: I78577124cd3c05d52669c3e52b0294d6eb1d194d

1 files changed, 131 insertions, 17 deletions

diff --git a/src/com/android/launcher3/allapps/AllAppsSearchBarController.java b/src/com/android/launcher3/allapps/AllAppsSearchBarController.java
index 2b363c0cb..fdce3895f 100644
--- a/src/com/android/launcher3/allapps/AllAppsSearchBarController.java
+++ b/src/com/android/launcher3/allapps/AllAppsSearchBarController.java
@@ -15,65 +15,179 @@
  */
 package com.android.launcher3.allapps;
 
-import android.content.ComponentName;
+import android.content.Context;
 import android.graphics.Rect;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.KeyEvent;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.inputmethod.EditorInfo;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.TextView;
+import android.widget.TextView.OnEditorActionListener;
 
+import com.android.launcher3.ExtendedEditText;
+import com.android.launcher3.Utilities;
 import com.android.launcher3.util.ComponentKey;
 
 import java.util.ArrayList;
+import java.util.List;
 
 /**
  * An interface to a search box that AllApps can command.
  */
-public abstract class AllAppsSearchBarController {
+public abstract class AllAppsSearchBarController
+        implements TextWatcher, OnEditorActionListener, ExtendedEditText.OnBackKeyListener {
 
+    private static final boolean ALLOW_SINGLE_APP_LAUNCH = true;
+
+    protected AllAppsRecyclerView mAppsRecyclerView;
     protected AlphabeticalAppsList mApps;
     protected Callbacks mCb;
+    protected ExtendedEditText mInput;
+
+    protected DefaultAppSearchAlgorithm mSearchAlgorithm;
+    protected InputMethodManager mInputMethodManager;
 
     /**
      * Sets the references to the apps model and the search result callback.
      */
-    public final void initialize(AlphabeticalAppsList apps, Callbacks cb) {
+    public final void initialize(
+            AlphabeticalAppsList apps, ExtendedEditText input,
+            AllAppsRecyclerView recycleView, Callbacks cb) {
         mApps = apps;
         mCb = cb;
-        onInitialize();
+        mAppsRecyclerView = recycleView;
+
+        mInput = input;
+        mInput.addTextChangedListener(this);
+        mInput.setOnEditorActionListener(this);
+        mInput.setOnBackKeyListener(this);
+
+        mInputMethodManager = (InputMethodManager)
+                mInput.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
+
+        mSearchAlgorithm = onInitializeSearch();
     }
 
     /**
-     * To be overridden by subclasses.  This method will get called when the controller is set,
-     * before getView().
+     * To be overridden by subclasses. This method will get called when the controller is set.
      */
-    protected abstract void onInitialize();
+    protected DefaultAppSearchAlgorithm onInitializeSearch() {
+        return null;
+    }
+
+    @Override
+    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+        // Do nothing
+    }
+
+    @Override
+    public void onTextChanged(CharSequence s, int start, int before, int count) {
+        // Do nothing
+    }
+
+    @Override
+    public void afterTextChanged(final Editable s) {
+        String query = s.toString();
+        if (query.isEmpty()) {
+            mSearchAlgorithm.cancel(true);
+            mCb.clearSearchResult();
+        } else {
+            mSearchAlgorithm.cancel(false);
+            mSearchAlgorithm.doSearch(query, mCb);
+        }
+    }
+
+    @Override
+    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
+        // Skip if we disallow app-launch-on-enter
+        if (!ALLOW_SINGLE_APP_LAUNCH) {
+            return false;
+        }
+        // Skip if it's not the right action
+        if (actionId != EditorInfo.IME_ACTION_SEARCH) {
+            return false;
+        }
+        // Skip if there are more than one icon
+        if (mApps.getNumFilteredApps() > 1) {
+            return false;
+        }
+        // Otherwise, find the first icon, or fallback to the search-market-view and launch it
+        List<AlphabeticalAppsList.AdapterItem> items = mApps.getAdapterItems();
+        for (int i = 0; i < items.size(); i++) {
+            AlphabeticalAppsList.AdapterItem item = items.get(i);
+            switch (item.viewType) {
+                case AllAppsGridAdapter.ICON_VIEW_TYPE:
+                case AllAppsGridAdapter.SEARCH_MARKET_VIEW_TYPE:
+                    mAppsRecyclerView.getChildAt(i).performClick();
+                    mInputMethodManager.hideSoftInputFromWindow(mInput.getWindowToken(), 0);
+                    return true;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public boolean onBackKey() {
+        // Only hide the search field if there is no query, or if there
+        // are no filtered results
+        String query = Utilities.trim(mInput.getEditableText().toString());
+        if (query.isEmpty() || mApps.hasNoFilteredResults()) {
+            reset();
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Resets the search bar state.
+     */
+    public void reset() {
+        unfocusSearchField();
+        mCb.clearSearchResult();
+        mInput.setText("");
+        mInputMethodManager.hideSoftInputFromWindow(mInput.getWindowToken(), 0);
+    }
+
+    protected void unfocusSearchField() {
+        View nextFocus = mInput.focusSearch(View.FOCUS_DOWN);
+        if (nextFocus != null) {
+            nextFocus.requestFocus();
+        }
+    }
 
     /**
      * Returns the search bar view.
      * @param parent the parent to attach the search bar view to.
      */
-    public abstract View getView(ViewGroup parent);
+    public View getView(ViewGroup parent) {
+        return null;
+    }
 
     /**
      * Focuses the search field to handle key events.
      */
-    public abstract void focusSearchField();
+    public void focusSearchField() {
+        mInput.requestFocus();
+        mInputMethodManager.showSoftInput(mInput, InputMethodManager.SHOW_IMPLICIT);
+    }
 
     /**
      * Returns whether the search field is focused.
      */
-    public abstract boolean isSearchFieldFocused();
-
-    /**
-     * Resets the search bar state.
-     */
-    public abstract void reset();
+    public boolean isSearchFieldFocused() {
+        return mInput.isFocused();
+    }
 
     /**
      * Returns whether the prediction bar should currently be visible depending on the state of
      * the search bar.
      */
-    @Deprecated
-    public abstract boolean shouldShowPredictionBar();
+    public boolean shouldShowPredictionBar() {
+        return false;
+    }
 
     /**
      * Callback for getting search results.