GestureSelectionHelperTest.java revision 2a32c7e1264b14a20ed900abadea828b804a46ce
163d2846409d84487d4856d3b8d18cc4684352e29Steve McKay/* 263d2846409d84487d4856d3b8d18cc4684352e29Steve McKay * Copyright 2017 The Android Open Source Project 363d2846409d84487d4856d3b8d18cc4684352e29Steve McKay * 463d2846409d84487d4856d3b8d18cc4684352e29Steve McKay * Licensed under the Apache License, Version 2.0 (the "License"); 563d2846409d84487d4856d3b8d18cc4684352e29Steve McKay * you may not use this file except in compliance with the License. 663d2846409d84487d4856d3b8d18cc4684352e29Steve McKay * You may obtain a copy of the License at 763d2846409d84487d4856d3b8d18cc4684352e29Steve McKay * 863d2846409d84487d4856d3b8d18cc4684352e29Steve McKay * http://www.apache.org/licenses/LICENSE-2.0 963d2846409d84487d4856d3b8d18cc4684352e29Steve McKay * 1063d2846409d84487d4856d3b8d18cc4684352e29Steve McKay * Unless required by applicable law or agreed to in writing, software 1163d2846409d84487d4856d3b8d18cc4684352e29Steve McKay * distributed under the License is distributed on an "AS IS" BASIS, 1263d2846409d84487d4856d3b8d18cc4684352e29Steve McKay * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1363d2846409d84487d4856d3b8d18cc4684352e29Steve McKay * See the License for the specific language governing permissions and 1463d2846409d84487d4856d3b8d18cc4684352e29Steve McKay * limitations under the License. 1563d2846409d84487d4856d3b8d18cc4684352e29Steve McKay */ 1663d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 172a32c7e1264b14a20ed900abadea828b804a46ceAurimas Liutikaspackage androidx.recyclerview.selection; 1863d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 1963d2846409d84487d4856d3b8d18cc4684352e29Steve McKayimport static org.junit.Assert.assertFalse; 2063d2846409d84487d4856d3b8d18cc4684352e29Steve McKayimport static org.junit.Assert.assertTrue; 2163d2846409d84487d4856d3b8d18cc4684352e29Steve McKayimport static org.junit.Assert.fail; 2263d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 2363d2846409d84487d4856d3b8d18cc4684352e29Steve McKayimport android.support.test.filters.SmallTest; 2463d2846409d84487d4856d3b8d18cc4684352e29Steve McKayimport android.support.test.runner.AndroidJUnit4; 2563d2846409d84487d4856d3b8d18cc4684352e29Steve McKayimport android.support.v7.widget.RecyclerView; 2663d2846409d84487d4856d3b8d18cc4684352e29Steve McKayimport android.view.MotionEvent; 2763d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 2863d2846409d84487d4856d3b8d18cc4684352e29Steve McKayimport org.junit.Before; 2963d2846409d84487d4856d3b8d18cc4684352e29Steve McKayimport org.junit.Test; 3063d2846409d84487d4856d3b8d18cc4684352e29Steve McKayimport org.junit.runner.RunWith; 3163d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 322a32c7e1264b14a20ed900abadea828b804a46ceAurimas Liutikasimport androidx.recyclerview.selection.testing.SelectionProbe; 332a32c7e1264b14a20ed900abadea828b804a46ceAurimas Liutikasimport androidx.recyclerview.selection.testing.SelectionTrackers; 342a32c7e1264b14a20ed900abadea828b804a46ceAurimas Liutikasimport androidx.recyclerview.selection.testing.TestAutoScroller; 352a32c7e1264b14a20ed900abadea828b804a46ceAurimas Liutikasimport androidx.recyclerview.selection.testing.TestEvents; 3663d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 3763d2846409d84487d4856d3b8d18cc4684352e29Steve McKay@RunWith(AndroidJUnit4.class) 3863d2846409d84487d4856d3b8d18cc4684352e29Steve McKay@SmallTest 3963d2846409d84487d4856d3b8d18cc4684352e29Steve McKaypublic class GestureSelectionHelperTest { 4063d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 4163d2846409d84487d4856d3b8d18cc4684352e29Steve McKay private static final MotionEvent DOWN = TestEvents.builder() 4263d2846409d84487d4856d3b8d18cc4684352e29Steve McKay .action(MotionEvent.ACTION_DOWN) 4363d2846409d84487d4856d3b8d18cc4684352e29Steve McKay .location(1, 1) 4463d2846409d84487d4856d3b8d18cc4684352e29Steve McKay .build(); 4563d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 4663d2846409d84487d4856d3b8d18cc4684352e29Steve McKay private static final MotionEvent MOVE = TestEvents.builder() 4763d2846409d84487d4856d3b8d18cc4684352e29Steve McKay .action(MotionEvent.ACTION_MOVE) 4863d2846409d84487d4856d3b8d18cc4684352e29Steve McKay .location(1, 1) 4963d2846409d84487d4856d3b8d18cc4684352e29Steve McKay .build(); 5063d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 5163d2846409d84487d4856d3b8d18cc4684352e29Steve McKay private static final MotionEvent UP = TestEvents.builder() 5263d2846409d84487d4856d3b8d18cc4684352e29Steve McKay .action(MotionEvent.ACTION_UP) 5363d2846409d84487d4856d3b8d18cc4684352e29Steve McKay .location(1, 1) 5463d2846409d84487d4856d3b8d18cc4684352e29Steve McKay .build(); 5563d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 5663d2846409d84487d4856d3b8d18cc4684352e29Steve McKay private GestureSelectionHelper mHelper; 577fb763509e07f98d650efc25c91bff8b1cb239acSteve McKay private SelectionTracker<String> mSelectionTracker; 5863d2846409d84487d4856d3b8d18cc4684352e29Steve McKay private SelectionProbe mSelection; 597fb763509e07f98d650efc25c91bff8b1cb239acSteve McKay private OperationMonitor mLock; 6063d2846409d84487d4856d3b8d18cc4684352e29Steve McKay private TestViewDelegate mView; 6163d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 6263d2846409d84487d4856d3b8d18cc4684352e29Steve McKay @Before 6363d2846409d84487d4856d3b8d18cc4684352e29Steve McKay public void setUp() { 647fb763509e07f98d650efc25c91bff8b1cb239acSteve McKay mSelectionTracker = SelectionTrackers.createStringTracker("gesture-selection-test", 100); 657fb763509e07f98d650efc25c91bff8b1cb239acSteve McKay mSelection = new SelectionProbe(mSelectionTracker); 667fb763509e07f98d650efc25c91bff8b1cb239acSteve McKay mLock = new OperationMonitor(); 6763d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mView = new TestViewDelegate(); 6863d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mHelper = new GestureSelectionHelper( 697fb763509e07f98d650efc25c91bff8b1cb239acSteve McKay mSelectionTracker, mView, new TestAutoScroller(), mLock); 7063d2846409d84487d4856d3b8d18cc4684352e29Steve McKay } 7163d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 7263d2846409d84487d4856d3b8d18cc4684352e29Steve McKay @Test 7363d2846409d84487d4856d3b8d18cc4684352e29Steve McKay public void testIgnoresDownOnNoPosition() { 7463d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mView.mNextPosition = RecyclerView.NO_POSITION; 7563d2846409d84487d4856d3b8d18cc4684352e29Steve McKay assertFalse(mHelper.onInterceptTouchEvent(null, DOWN)); 7663d2846409d84487d4856d3b8d18cc4684352e29Steve McKay } 7763d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 7863d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 7963d2846409d84487d4856d3b8d18cc4684352e29Steve McKay @Test 8063d2846409d84487d4856d3b8d18cc4684352e29Steve McKay public void testNoStartOnIllegalPosition() { 8163d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mHelper.onInterceptTouchEvent(null, DOWN); 8263d2846409d84487d4856d3b8d18cc4684352e29Steve McKay try { 8363d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mHelper.start(); 8463d2846409d84487d4856d3b8d18cc4684352e29Steve McKay fail("Should have thrown."); 8563d2846409d84487d4856d3b8d18cc4684352e29Steve McKay } catch (Exception expected) { 8663d2846409d84487d4856d3b8d18cc4684352e29Steve McKay } 8763d2846409d84487d4856d3b8d18cc4684352e29Steve McKay } 8863d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 8963d2846409d84487d4856d3b8d18cc4684352e29Steve McKay @Test 9063d2846409d84487d4856d3b8d18cc4684352e29Steve McKay public void testClaimsDownOnItem() { 9163d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mView.mNextPosition = 0; 9263d2846409d84487d4856d3b8d18cc4684352e29Steve McKay assertTrue(mHelper.onInterceptTouchEvent(null, DOWN)); 9363d2846409d84487d4856d3b8d18cc4684352e29Steve McKay } 9463d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 9563d2846409d84487d4856d3b8d18cc4684352e29Steve McKay @Test 9663d2846409d84487d4856d3b8d18cc4684352e29Steve McKay public void testClaimsMoveIfStarted() { 9763d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mView.mNextPosition = 0; 9863d2846409d84487d4856d3b8d18cc4684352e29Steve McKay assertTrue(mHelper.onInterceptTouchEvent(null, DOWN)); 9963d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 10063d2846409d84487d4856d3b8d18cc4684352e29Steve McKay // Normally, this is controller by the TouchSelectionHelper via a a long press gesture. 1017fb763509e07f98d650efc25c91bff8b1cb239acSteve McKay mSelectionTracker.select("1"); 1027fb763509e07f98d650efc25c91bff8b1cb239acSteve McKay mSelectionTracker.anchorRange(1); 10363d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mHelper.start(); 10463d2846409d84487d4856d3b8d18cc4684352e29Steve McKay assertTrue(mHelper.onInterceptTouchEvent(null, MOVE)); 10563d2846409d84487d4856d3b8d18cc4684352e29Steve McKay } 10663d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 10763d2846409d84487d4856d3b8d18cc4684352e29Steve McKay @Test 10863d2846409d84487d4856d3b8d18cc4684352e29Steve McKay public void testCreatesRangeSelection() { 10963d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mView.mNextPosition = 1; 11063d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mHelper.onInterceptTouchEvent(null, DOWN); 11163d2846409d84487d4856d3b8d18cc4684352e29Steve McKay // Another way we are implicitly coupled to TouchInputHandler, is that we depend on 11263d2846409d84487d4856d3b8d18cc4684352e29Steve McKay // long press to establish the initial anchor point. Without that we'll get an 11363d2846409d84487d4856d3b8d18cc4684352e29Steve McKay // error when we try to extend the range. 11463d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 1157fb763509e07f98d650efc25c91bff8b1cb239acSteve McKay mSelectionTracker.select("1"); 1167fb763509e07f98d650efc25c91bff8b1cb239acSteve McKay mSelectionTracker.anchorRange(1); 11763d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mHelper.start(); 11863d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 11963d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mHelper.onTouchEvent(null, MOVE); 12063d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 12163d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mView.mNextPosition = 9; 12263d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mHelper.onTouchEvent(null, MOVE); 12363d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mHelper.onTouchEvent(null, UP); 12463d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 12563d2846409d84487d4856d3b8d18cc4684352e29Steve McKay mSelection.assertRangeSelected(1, 9); 12663d2846409d84487d4856d3b8d18cc4684352e29Steve McKay } 12763d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 12863d2846409d84487d4856d3b8d18cc4684352e29Steve McKay private static final class TestViewDelegate extends GestureSelectionHelper.ViewDelegate { 12963d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 13063d2846409d84487d4856d3b8d18cc4684352e29Steve McKay private int mNextPosition = RecyclerView.NO_POSITION; 13163d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 13263d2846409d84487d4856d3b8d18cc4684352e29Steve McKay @Override 13363d2846409d84487d4856d3b8d18cc4684352e29Steve McKay int getHeight() { 13463d2846409d84487d4856d3b8d18cc4684352e29Steve McKay return 1000; 13563d2846409d84487d4856d3b8d18cc4684352e29Steve McKay } 13663d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 13763d2846409d84487d4856d3b8d18cc4684352e29Steve McKay @Override 13863d2846409d84487d4856d3b8d18cc4684352e29Steve McKay int getItemUnder(MotionEvent e) { 13963d2846409d84487d4856d3b8d18cc4684352e29Steve McKay return mNextPosition; 14063d2846409d84487d4856d3b8d18cc4684352e29Steve McKay } 14163d2846409d84487d4856d3b8d18cc4684352e29Steve McKay 14263d2846409d84487d4856d3b8d18cc4684352e29Steve McKay @Override 14363d2846409d84487d4856d3b8d18cc4684352e29Steve McKay int getLastGlidedItemPosition(MotionEvent e) { 14463d2846409d84487d4856d3b8d18cc4684352e29Steve McKay return mNextPosition; 14563d2846409d84487d4856d3b8d18cc4684352e29Steve McKay } 14663d2846409d84487d4856d3b8d18cc4684352e29Steve McKay } 14763d2846409d84487d4856d3b8d18cc4684352e29Steve McKay} 148