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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.settings.dashboard.suggestions;
     18 
     19 import android.content.Context;
     20 import android.support.v7.widget.RecyclerView;
     21 import android.support.v7.widget.helper.ItemTouchHelper;
     22 
     23 import com.android.settings.R;
     24 import com.android.settings.overlay.FeatureFactory;
     25 import com.android.settingslib.drawer.Tile;
     26 import com.android.settingslib.suggestions.SuggestionParser;
     27 
     28 public class SuggestionDismissController extends ItemTouchHelper.SimpleCallback {
     29 
     30     public interface Callback {
     31 
     32         /**
     33          * Returns suggestion tile data from the callback
     34          */
     35         Tile getSuggestionForPosition(int position);
     36 
     37         /**
     38          * Called when a suggestion is dismissed.
     39          */
     40         void onSuggestionDismissed(Tile suggestion);
     41     }
     42 
     43     private final Context mContext;
     44     private final SuggestionFeatureProvider mSuggestionFeatureProvider;
     45     private final SuggestionParser mSuggestionParser;
     46     private final Callback mCallback;
     47 
     48     public SuggestionDismissController(Context context, RecyclerView recyclerView,
     49             SuggestionParser parser, Callback callback) {
     50         super(0, ItemTouchHelper.START | ItemTouchHelper.END);
     51         mContext = context;
     52         mSuggestionParser = parser;
     53         mSuggestionFeatureProvider = FeatureFactory.getFactory(context)
     54                 .getSuggestionFeatureProvider(context);
     55         mCallback = callback;
     56         final ItemTouchHelper itemTouchHelper = new ItemTouchHelper(this);
     57         itemTouchHelper.attachToRecyclerView(recyclerView);
     58     }
     59 
     60     @Override
     61     public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder,
     62             RecyclerView.ViewHolder target) {
     63         return true;
     64     }
     65 
     66     @Override
     67     public int getSwipeDirs(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
     68         final int layoutId = viewHolder.getItemViewType();
     69         if (layoutId == R.layout.suggestion_tile
     70                 || layoutId == R.layout.suggestion_tile_remote_container) {
     71             // Only return swipe direction for suggestion tiles. All other types are not swipeable.
     72             return super.getSwipeDirs(recyclerView, viewHolder);
     73         }
     74         return 0;
     75     }
     76 
     77     @Override
     78     public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
     79         if (mCallback == null) {
     80             return;
     81         }
     82         final Tile suggestion = mCallback.getSuggestionForPosition(viewHolder.getAdapterPosition());
     83         mSuggestionFeatureProvider.dismissSuggestion(mContext, mSuggestionParser, suggestion);
     84         mCallback.onSuggestionDismissed(suggestion);
     85     }
     86 }
     87