1 /* 2 * Copyright (C) 2013 DroidDriver committers 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 io.appium.droiddriver.actions.accessibility; 18 19 import android.annotation.TargetApi; 20 import android.view.accessibility.AccessibilityNodeInfo; 21 22 import io.appium.droiddriver.UiElement; 23 import io.appium.droiddriver.actions.ScrollAction; 24 import io.appium.droiddriver.scroll.Direction.PhysicalDirection; 25 import io.appium.droiddriver.util.Strings; 26 27 /** 28 * An {@link AccessibilityAction} that scrolls an UiElement. 29 */ 30 @TargetApi(18) 31 public class AccessibilityScrollAction extends AccessibilityAction implements ScrollAction { 32 private final PhysicalDirection direction; 33 AccessibilityScrollAction(PhysicalDirection direction)34 public AccessibilityScrollAction(PhysicalDirection direction) { 35 this(direction, 1000L); 36 } 37 AccessibilityScrollAction(PhysicalDirection direction, long timeoutMillis)38 public AccessibilityScrollAction(PhysicalDirection direction, long timeoutMillis) { 39 super(timeoutMillis); 40 this.direction = direction; 41 } 42 43 @Override perform(AccessibilityNodeInfo node, UiElement element)44 protected boolean perform(AccessibilityNodeInfo node, UiElement element) { 45 if (!element.isScrollable()) { 46 return false; 47 } 48 49 switch (direction) { 50 case UP: 51 case LEFT: 52 return node.performAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 53 case DOWN: 54 case RIGHT: 55 return node.performAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 56 } 57 return false; 58 } 59 60 @Override toString()61 public String toString() { 62 return Strings.toStringHelper(this).addValue(direction).toString(); 63 } 64 } 65