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
17package com.google.android.droiddriver.actions;
18
19import android.graphics.Rect;
20import android.os.SystemClock;
21import android.view.ViewConfiguration;
22
23import com.google.android.droiddriver.InputInjector;
24import com.google.android.droiddriver.UiElement;
25import com.google.android.droiddriver.exceptions.ActionException;
26import com.google.android.droiddriver.util.Events;
27
28/**
29 * A {@link ScrollAction} that swipes the touch screen.
30 */
31public class SwipeAction extends ScrollAction {
32
33  private final ScrollDirection direction;
34  private final boolean drag;
35
36  /**
37   * Defaults timeoutMillis to 0.
38   */
39  public SwipeAction(ScrollDirection direction, boolean drag) {
40    this(direction, drag, 0L);
41  }
42
43  public SwipeAction(ScrollDirection direction, boolean drag, long timeoutMillis) {
44    super(timeoutMillis);
45    this.direction = direction;
46    this.drag = drag;
47  }
48
49  @Override
50  public boolean perform(InputInjector injector, UiElement element) {
51    Rect elementRect = element.getVisibleBounds();
52
53    int swipeAreaHeightAdjust = (int) (elementRect.height() * 0.1);
54    int swipeAreaWidthAdjust = (int) (elementRect.width() * 0.1);
55    int steps = 50;
56    int startX;
57    int startY;
58    int endX;
59    int endY;
60
61    switch (direction) {
62      case DOWN:
63        startX = elementRect.centerX();
64        startY = elementRect.bottom - swipeAreaHeightAdjust;
65        endX = elementRect.centerX();
66        endY = elementRect.top + swipeAreaHeightAdjust;
67        break;
68      case UP:
69        startX = elementRect.centerX();
70        startY = elementRect.top + swipeAreaHeightAdjust;
71        endX = elementRect.centerX();
72        endY = elementRect.bottom - swipeAreaHeightAdjust;
73        break;
74      case LEFT:
75        startX = elementRect.left + swipeAreaWidthAdjust;
76        startY = elementRect.centerY();
77        endX = elementRect.right - swipeAreaWidthAdjust;
78        endY = elementRect.centerY();
79        break;
80      case RIGHT:
81        startX = elementRect.right - swipeAreaWidthAdjust;
82        startY = elementRect.centerY();
83        endX = elementRect.left + swipeAreaHeightAdjust;
84        endY = elementRect.centerY();
85        break;
86      default:
87        throw new ActionException("Unknown scroll direction: " + direction);
88    }
89
90    double xStep = ((double) (endX - startX)) / steps;
91    double yStep = ((double) (endY - startY)) / steps;
92
93    // First touch starts exactly at the point requested
94    long downTime = Events.touchDown(injector, startX, startY);
95    if (drag) {
96      SystemClock.sleep((long) (ViewConfiguration.getLongPressTimeout() * 1.5f));
97    }
98    for (int i = 1; i < steps; i++) {
99      Events.touchMove(injector, downTime, startX + (int) (xStep * i), startY + (int) (yStep * i));
100      SystemClock.sleep(5);
101    }
102    if (drag) {
103      // Hold final position for a little bit to simulate drag.
104      SystemClock.sleep(100);
105    }
106    Events.touchUp(injector, downTime, endX, endY);
107    return true;
108  }
109}
110