| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| package com.android.systemui.recents.history; |
| |
| import android.content.Context; |
| import android.support.v7.widget.RecyclerView; |
| import android.support.v7.widget.helper.ItemTouchHelper; |
| import com.android.internal.logging.MetricsLogger; |
| import com.android.systemui.recents.Constants; |
| import com.android.systemui.recents.events.EventBus; |
| import com.android.systemui.recents.events.ui.DismissTaskEvent; |
| |
| |
| /** |
| * An item touch handler for items in the history view. |
| */ |
| public class RecentsHistoryItemTouchCallbacks extends ItemTouchHelper.SimpleCallback { |
| |
| private Context mContext; |
| private RecentsHistoryAdapter mAdapter; |
| |
| public RecentsHistoryItemTouchCallbacks(Context context, RecentsHistoryAdapter adapter) { |
| super(0, ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT); |
| mContext = context; |
| mAdapter = adapter; |
| } |
| |
| @Override |
| public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, |
| RecyclerView.ViewHolder target) { |
| return false; |
| } |
| |
| @Override |
| public int getSwipeDirs(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) { |
| int viewType = mAdapter.getItemViewType(viewHolder.getAdapterPosition()); |
| switch (viewType) { |
| case RecentsHistoryAdapter.DATE_ROW_VIEW_TYPE: |
| // Disallow swiping |
| return 0; |
| default: |
| return super.getSwipeDirs(recyclerView, viewHolder); |
| } |
| } |
| |
| @Override |
| public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) { |
| int position = viewHolder.getAdapterPosition(); |
| if (position != RecyclerView.NO_POSITION) { |
| RecentsHistoryAdapter.Row row = mAdapter.getRow(position); |
| RecentsHistoryAdapter.TaskRow taskRow = (RecentsHistoryAdapter.TaskRow) row; |
| |
| // Remove the task from the system |
| EventBus.getDefault().send(new DismissTaskEvent(taskRow.task)); |
| mAdapter.onTaskRemoved(taskRow.task, position); |
| |
| // Keep track of deletions by swiping within history |
| MetricsLogger.histogram(mContext, "overview_task_dismissed_source", |
| Constants.Metrics.DismissSourceHistorySwipeGesture); |
| } |
| } |
| } |