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      1 /*
      2  * Copyright (C) 2016 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 package com.android.systemui.recents.tv.views;
     17 
     18 import android.animation.Animator;
     19 import android.support.v7.widget.RecyclerView;
     20 import android.util.Log;
     21 import android.view.LayoutInflater;
     22 import android.view.View;
     23 import android.view.ViewGroup;
     24 
     25 import com.android.systemui.R;
     26 import com.android.systemui.recents.Recents;
     27 import com.android.systemui.recents.events.EventBus;
     28 import com.android.systemui.recents.events.activity.LaunchTvTaskEvent;
     29 import com.android.systemui.recents.events.ui.DeleteTaskDataEvent;
     30 import com.android.systemui.recents.model.RecentsTaskLoader;
     31 import com.android.systemui.recents.model.Task;
     32 import com.android.systemui.recents.views.AnimationProps;
     33 
     34 import java.util.ArrayList;
     35 import java.util.List;
     36 
     37 import static android.app.ActivityManager.StackId.INVALID_STACK_ID;
     38 
     39 public class TaskStackHorizontalViewAdapter extends
     40         RecyclerView.Adapter<TaskStackHorizontalViewAdapter.ViewHolder> {
     41 
     42     //Full class name is 30 characters
     43     private static final String TAG = "TaskStackViewAdapter";
     44     private List<Task> mTaskList;
     45     private TaskStackHorizontalGridView mGridView;
     46 
     47     public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
     48         private TaskCardView mTaskCardView;
     49         private Task mTask;
     50         public ViewHolder(View v) {
     51             super(v);
     52             mTaskCardView = (TaskCardView) v;
     53         }
     54 
     55         public void init(Task task) {
     56             mTaskCardView.init(task);
     57             mTask = task;
     58             mTaskCardView.setOnClickListener(this);
     59         }
     60 
     61         @Override
     62         public void onClick(View v) {
     63             try {
     64                 if (mTaskCardView.isInDismissState()) {
     65                     mTaskCardView.startDismissTaskAnimation(
     66                             getRemoveAtListener(getAdapterPosition(), mTaskCardView.getTask()));
     67                 } else {
     68                     EventBus.getDefault().send(new LaunchTvTaskEvent(mTaskCardView, mTask,
     69                             null, INVALID_STACK_ID));
     70                 }
     71             } catch (Exception e) {
     72                 Log.e(TAG, v.getContext()
     73                         .getString(R.string.recents_launch_error_message, mTask.title), e);
     74             }
     75 
     76         }
     77 
     78         private Animator.AnimatorListener getRemoveAtListener(final int position,
     79                                                               final Task task) {
     80             return new Animator.AnimatorListener() {
     81 
     82                 @Override
     83                 public void onAnimationStart(Animator animation) { }
     84 
     85                 @Override
     86                 public void onAnimationEnd(Animator animation) {
     87                     removeTask(task);
     88                     EventBus.getDefault().send(new DeleteTaskDataEvent(task));
     89                 }
     90 
     91                 @Override
     92                 public void onAnimationCancel(Animator animation) { }
     93 
     94                 @Override
     95                 public void onAnimationRepeat(Animator animation) { }
     96             };
     97 
     98         }
     99     }
    100 
    101     public TaskStackHorizontalViewAdapter(List tasks) {
    102         mTaskList = new ArrayList<Task>(tasks);
    103     }
    104 
    105     public void setNewStackTasks(List tasks) {
    106         mTaskList.clear();
    107         mTaskList.addAll(tasks);
    108         notifyDataSetChanged();
    109     }
    110 
    111     @Override
    112     public TaskStackHorizontalViewAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
    113             int viewType) {
    114         LayoutInflater inflater = LayoutInflater.from(parent.getContext());
    115         ViewHolder viewHolder = new ViewHolder(
    116                         inflater.inflate(R.layout.recents_tv_task_card_view, parent, false));
    117         return viewHolder;
    118     }
    119 
    120     @Override
    121     public void onBindViewHolder(ViewHolder holder, int position) {
    122         Task task = mTaskList.get(position);
    123         // Retrives from caches, loading only if necessary
    124         Recents.getTaskLoader().loadTaskData(task);
    125         holder.init(task);
    126     }
    127 
    128     @Override
    129     public int getItemCount() {
    130         return mTaskList.size();
    131     }
    132 
    133     public void removeTask(Task task) {
    134         int position = mTaskList.indexOf(task);
    135         if (position >= 0) {
    136             mTaskList.remove(position);
    137             notifyItemRemoved(position);
    138             if (mGridView != null) {
    139                 mGridView.getStack().removeTask(task, AnimationProps.IMMEDIATE,
    140                         false);
    141             }
    142         }
    143     }
    144 
    145     public int getPositionOfTask(Task task) {
    146         int position = mTaskList.indexOf(task);
    147         return (position >= 0) ? position : 0;
    148     }
    149 
    150 
    151     public void setTaskStackHorizontalGridView(TaskStackHorizontalGridView gridView) {
    152         mGridView = gridView;
    153     }
    154 
    155     public void addTaskAt(Task task, int position) {
    156         mTaskList.add(position, task);
    157         notifyItemInserted(position);
    158     }
    159 }
    160