root/content/public/test/android/javatests/src/org/chromium/content/browser/test/util/TestTouchUtils.java

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DEFINITIONS

This source file includes following definitions.
  1. getAbsoluteLocationFromRelative
  2. sendAction
  3. singleClick
  4. singleClickView
  5. singleClickView
  6. sleepForDoubleTapTimeout
  7. longClickView
  8. longClickView
  9. dragStart
  10. dragTo
  11. dragEnd
  12. dragCompleteView
  13. performClickOnMainSync
  14. clickById

// Copyright 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

package org.chromium.content.browser.test.util;

import android.app.Activity;
import android.app.Instrumentation;
import android.os.SystemClock;
import android.test.InstrumentationTestCase;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewConfiguration;

/**
 * Collection of utilities for generating touch events.
 * Based on android.test.TouchUtils, but slightly more flexible (allows to
 * specify coordinates for longClick, splits drag operation in three stages, etc).
 */
public class TestTouchUtils extends android.test.TouchUtils {
    /**
     * Returns the absolute location in screen coordinates from location relative
     * to view.
     * @param v The view the coordinates are relative to.
     * @param x Relative x location.
     * @param y Relative y location.
     * @return the absolute x and y location in an array.
     */
    public static int[] getAbsoluteLocationFromRelative(View v, int x, int y) {
        int location[] = new int[2];
        v.getLocationOnScreen(location);
        location[0] += x;
        location[1] += y;
        return location;
    }

    private static void sendAction(Instrumentation instrumentation, int action, long downTime,
            float x, float y) {
        long eventTime = SystemClock.uptimeMillis();
        MotionEvent event = MotionEvent.obtain(downTime, eventTime, action, x, y, 0);
        instrumentation.sendPointerSync(event);
        instrumentation.waitForIdleSync();
    }

    /**
     * Sends (synchronously) a single click to an absolute screen coordinates.
     *
     * @param instrumentation Instrumentation object used by the test.
     * @param x Screen absolute x location.
     * @param y Screen absolute y location.
     */
    public static void singleClick(Instrumentation instrumentation, float x, float y) {
        long downTime = SystemClock.uptimeMillis();
        sendAction(instrumentation, MotionEvent.ACTION_DOWN, downTime, x, y);
        sendAction(instrumentation, MotionEvent.ACTION_UP, downTime, x, y);
    }

    /**
     * Sends (synchronously) a single click to the View at the specified coordinates.
     *
     * @param instrumentation Instrumentation object used by the test.
     * @param v The view the coordinates are relative to.
     * @param x Relative x location to the view.
     * @param y Relative y location to the view.
     */
    public static void singleClickView(Instrumentation instrumentation, View v, int x, int y) {
        int location[] = getAbsoluteLocationFromRelative(v, x, y);
        int absoluteX = location[0];
        int absoluteY = location[1];
        singleClick(instrumentation, absoluteX, absoluteY);
    }

    /**
     * Sends (synchronously) a single click to the center of the View.
     *
     * @param instrumentation Instrumentation object used by the test.
     * @param v The view the coordinates are relative to.
     */
    public static void singleClickView(Instrumentation instrumentation, View v) {
        int x = v.getWidth() / 2;
        int y = v.getHeight() / 2;
        singleClickView(instrumentation, v, x, y);
    }

    /**
     * Sleeps for at least the length of the double tap timeout.
     *
     * @param instrumentation Instrumentation object used by the test.
     */
    public static void sleepForDoubleTapTimeout(Instrumentation instrumentation) {
        SystemClock.sleep((long) (ViewConfiguration.getDoubleTapTimeout() * 1.5));
    }

    /**
     * Sends (synchronously) a long click to the View at the specified coordinates.
     *
     * @param instrumentation Instrumentation object used by the test.
     * @param v The view the coordinates are relative to.
     * @param x Relative x location to the view.
     * @param y Relative y location to the view.
     */
    public static void longClickView(Instrumentation instrumentation, View v, int x, int y) {
        int location[] = getAbsoluteLocationFromRelative(v, x, y);
        int absoluteX = location[0];
        int absoluteY = location[1];

        long downTime = SystemClock.uptimeMillis();
        sendAction(instrumentation, MotionEvent.ACTION_DOWN, downTime, absoluteX, absoluteY);
        SystemClock.sleep((long) (ViewConfiguration.getLongPressTimeout() * 1.5));
        sendAction(instrumentation, MotionEvent.ACTION_UP, downTime, absoluteX, absoluteY);
    }

    /**
     * Sends (synchronously) a long click to the View at its center.
     *
     * @param instrumentation Instrumentation object used by the test.
     * @param v The view to long click.
     */
    public static void longClickView(Instrumentation instrumentation, View v) {
        int x = v.getWidth() / 2;
        int y = v.getHeight() / 2;
        longClickView(instrumentation, v, x, y);
    }

    /**
     * Starts (synchronously) a drag motion. Normally followed by dragTo() and dragEnd().
     *
     * @param instrumentation Instrumentation object used by the test.
     * @param x The x location.
     * @param y The y location.
     * @return The downTime of the triggered event.
     */
    public static long dragStart(Instrumentation instrumentation, float x, float y) {
        long downTime = SystemClock.uptimeMillis();
        sendAction(instrumentation, MotionEvent.ACTION_DOWN, downTime, x, y);
        return downTime;
    }

    /**
     * Drags / moves (synchronously) to the specified coordinates. Normally preceeded by
     * dragStart() and followed by dragEnd()
     *
     * @param instrumentation Instrumentation object used by the test.
     * @param fromX The relative x-coordinate of the start point of the drag.
     * @param toX The relative x-coordinate of the end point of the drag.
     * @param fromY The relative y-coordinate of the start point of the drag.
     * @param toY The relative y-coordinate of the end point of the drag.
     * @param stepCount The total number of motion events that should be generated during the drag.
     * @param downTime The initial time of the drag, in ms.
     */
    public static void dragTo(Instrumentation instrumentation, float fromX, float toX, float fromY,
            float toY, int stepCount, long downTime) {
        float x = fromX;
        float y = fromY;
        float yStep = (toY - fromY) / stepCount;
        float xStep = (toX - fromX) / stepCount;
        for (int i = 0; i < stepCount; ++i) {
            y += yStep;
            x += xStep;
            sendAction(instrumentation, MotionEvent.ACTION_MOVE, downTime, x, y);
        }
    }

    /**
     * Finishes (synchronously) a drag / move at the specified coordinate.
     * Normally preceeded by dragStart() and dragTo().
     *
     * @param instrumentation Instrumentation object used by the test.
     * @param x The x location.
     * @param y The y location.
     * @param downTime The initial time of the drag, in ms.
     */
    public static void dragEnd(Instrumentation instrumentation, float x, float y, long downTime) {
        sendAction(instrumentation, MotionEvent.ACTION_UP, downTime, x, y);
    }

    /**
     * Performs a drag between the given coordinates, specified relative to the given view.
     * This method makes calls to dragStart, dragTo and dragEnd.
     *
     * @param instrumentation Instrumentation object used by the test.
     * @param view The view the coordinates are relative to.
     * @param fromX The relative x-coordinate of the start point of the drag.
     * @param toX The relative x-coordinate of the end point of the drag.
     * @param fromY The relative y-coordinate of the start point of the drag.
     * @param toY The relative y-coordinate of the end point of the drag.
     * @param stepCount The total number of motion events that should be generated during the drag.
     */
    public static void dragCompleteView(Instrumentation instrumentation, View view,
            int fromX, int toX, int fromY, int toY, int stepCount) {
        int fromLocation[] = getAbsoluteLocationFromRelative(view, fromX, fromY);
        int toLocation[] = getAbsoluteLocationFromRelative(view, toX, toY);
        long downTime = dragStart(instrumentation, fromLocation[0], fromLocation[1]);
        dragTo(instrumentation, fromLocation[0], toLocation[0], fromLocation[1], toLocation[1],
                stepCount, downTime);
        dragEnd(instrumentation, toLocation[0], toLocation[1], downTime);
    }

    /**
     * Calls performClick on a View on the main UI thread.
     *
     * @param instrumentation Instrumentation object used by the test.
     * @param v The view to call performClick on.
     */
    public static void performClickOnMainSync(Instrumentation instrumentation, final View v) {
        instrumentation.runOnMainSync(new Runnable() {
            @Override
            public void run() {
                v.performClick();
            }
        });
    }

    /**
     * Clicks on specified view in the given {@link Activity}.
     *
     * @param test The test case using this utility.
     * @param activity Activity containing the view.
     * @param id The view to be clicked.
     * @return {@code true} if a view with the given id exists.
     */
    public static boolean clickById(InstrumentationTestCase test, Activity activity, int id) {
        View v = activity.findViewById(id);
        if (v == null) return false;
        clickView(test, v);
        return true;
    }
}

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