/*
* Copyright (C) 2013 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 android.app;
import android.accessibilityservice.AccessibilityService.Callbacks;
import android.accessibilityservice.AccessibilityService.IAccessibilityServiceClientWrapper;
import android.accessibilityservice.AccessibilityServiceInfo;
import android.accessibilityservice.IAccessibilityServiceClient;
import android.accessibilityservice.IAccessibilityServiceConnection;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Point;
import android.hardware.display.DisplayManagerGlobal;
import android.os.IBinder;
import android.os.Looper;
import android.os.ParcelFileDescriptor;
import android.os.RemoteException;
import android.os.SystemClock;
import android.util.Log;
import android.view.Display;
import android.view.InputEvent;
import android.view.KeyEvent;
import android.view.Surface;
import android.view.WindowAnimationFrameStats;
import android.view.WindowContentFrameStats;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityInteractionClient;
import android.view.accessibility.AccessibilityNodeInfo;
import android.view.accessibility.AccessibilityWindowInfo;
import android.view.accessibility.IAccessibilityInteractionConnection;
import libcore.io.IoUtils;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeoutException;
/**
* Class for interacting with the device's UI by simulation user actions and
* introspection of the screen content. It relies on the platform accessibility
* APIs to introspect the screen and to perform some actions on the remote view
* tree. It also allows injecting of arbitrary raw input events simulating user
* interaction with keyboards and touch devices. One can think of a UiAutomation
* as a special type of {@link android.accessibilityservice.AccessibilityService}
* which does not provide hooks for the service life cycle and exposes other
* APIs that are useful for UI test automation.
* <p>
* The APIs exposed by this class are low-level to maximize flexibility when
* developing UI test automation tools and libraries. Generally, a UiAutomation
* client should be using a higher-level library or implement high-level functions.
* For example, performing a tap on the screen requires construction and injecting
* of a touch down and up events which have to be delivered to the system by a
* call to {@link #injectInputEvent(InputEvent, boolean)}.
* </p>
* <p>
* The APIs exposed by this class operate across applications enabling a client
* to write tests that cover use cases spanning over multiple applications. For
* example, going to the settings application to change a setting and then
* interacting with another application whose behavior depends on that setting.
* </p>
*/
public final class UiAutomation {
private static final String LOG_TAG = UiAutomation.class.getSimpleName();
private static final boolean DEBUG = false;
private static final int CONNECTION_ID_UNDEFINED = -1;
private static final long CONNECT_TIMEOUT_MILLIS = 5000;
/** Rotation constant: Unfreeze rotation (rotating the device changes its rotation state). */
public static final int ROTATION_UNFREEZE = -2;
/** Rotation constant: Freeze rotation to its current state. */
public static final int ROTATION_FREEZE_CURRENT = -1;
/** Rotation constant: Freeze rotation to 0 degrees (natural orientation) */
public static final int ROTATION_FREEZE_0 = Surface.ROTATION_0;
/** Rotation constant: Freeze rotation to 90 degrees . */
public static final int ROTATION_FREEZE_90 = Surface.ROTATION_90;
/** Rotation constant: Freeze rotation to 180 degrees . */
public static final int ROTATION_FREEZE_180 = Surface.ROTATION_180;
/** Rotation constant: Freeze rotation to 270 degrees . */
public static final int ROTATION_FREEZE_270 = Surface.ROTATION_270;
private final Object mLock = new Object();
private final ArrayList<AccessibilityEvent> mEventQueue = new ArrayList<AccessibilityEvent>();
private final IAccessibilityServiceClient mClient;
private final IUiAutomationConnection mUiAutomationConnection;
private int mConnectionId = CONNECTION_ID_UNDEFINED;
private OnAccessibilityEventListener mOnAccessibilityEventListener;
private boolean mWaitingForEventDelivery;
private long mLastEventTimeMillis;
private boolean mIsConnecting;
/**
* Listener for observing the {@link AccessibilityEvent} stream.
*/
public static interface OnAccessibilityEventListener {
/**
* Callback for receiving an {@link AccessibilityEvent}.
* <p>
* <strong>Note:</strong> This method is <strong>NOT</strong> executed
* on the main test thread. The client is responsible for proper
* synchronization.
* </p>
* <p>
* <strong>Note:</strong> It is responsibility of the client
* to recycle the received events to minimize object creation.
* </p>
*
* @param event The received event.
*/
public void onAccessibilityEvent(AccessibilityEvent event);
}
/**
* Listener for filtering accessibility events.
*/
public static interface AccessibilityEventFilter {
/**
* Callback for determining whether an event is accepted or
* it is filtered out.
*
* @param event The event to process.
* @return True if the event is accepted, false to filter it out.
*/
public boolean accept(AccessibilityEvent event);
}
/**
* Creates a new instance that will handle callbacks from the accessibility
* layer on the thread of the provided looper and perform requests for privileged
* operations on the provided connection.
*
* @param looper The looper on which to execute accessibility callbacks.
* @param connection The connection for performing privileged operations.
*
* @hide
*/
public UiAutomation(Looper looper, IUiAutomationConnection connection) {
if (looper == null) {
throw new IllegalArgumentException("Looper cannot be null!");
}
if (connection == null) {
throw new IllegalArgumentException("Connection cannot be null!");
}
mUiAutomationConnection = connection;
mClient = new IAccessibilityServiceClientImpl(looper);
}
/**
* Connects this UiAutomation to the accessibility introspection APIs.
*
* @hide
*/
public void connect() {
synchronized (mLock) {
throwIfConnectedLocked();
if (mIsConnecting) {
return;
}
mIsConnecting = true;
}
try {
// Calling out without a lock held.
mUiAutomationConnection.connect(mClient);
} catch (RemoteException re) {
throw new RuntimeException("Error while connecting UiAutomation", re);
}
synchronized (mLock) {
final long startTimeMillis = SystemClock.uptimeMillis();
try {
while (true) {
if (isConnectedLocked()) {
break;
}
final long elapsedTimeMillis = SystemClock.uptimeMillis() - startTimeMillis;
final long remainingTimeMillis = CONNECT_TIMEOUT_MILLIS - elapsedTimeMillis;
if (remainingTimeMillis <= 0) {
throw new RuntimeException("Error while connecting UiAutomation");
}
try {
mLock.wait(remainingTimeMillis);
} catch (InterruptedException ie) {
/* ignore */
}
}
} finally {
mIsConnecting = false;
}
}
}
/**
* Disconnects this UiAutomation from the accessibility introspection APIs.
*
* @hide
*/
public void disconnect() {
synchronized (mLock) {
if (mIsConnecting) {
throw new IllegalStateException(
"Cannot call disconnect() while connecting!");
}
throwIfNotConnectedLocked();
mConnectionId = CONNECTION_ID_UNDEFINED;
}
try {
// Calling out without a lock held.
mUiAutomationConnection.disconnect();
} catch (RemoteException re) {
throw new RuntimeException("Error while disconnecting UiAutomation", re);
}
}
/**
* The id of the {@link IAccessibilityInteractionConnection} for querying
* the screen content. This is here for legacy purposes since some tools use
* hidden APIs to introspect the screen.
*
* @hide
*/
public int getConnectionId() {
synchronized (mLock) {
throwIfNotConnectedLocked();
return mConnectionId;
}
}
/**
* Sets a callback for observing the stream of {@link AccessibilityEvent}s.
*
* @param listener The callback.
*/
public void setOnAccessibilityEventListener(OnAccessibilityEventListener listener) {
synchronized (mLock) {
mOnAccessibilityEventListener = listener;
}
}
/**
* Performs a global action. Such an action can be performed at any moment
* regardless of the current application or user location in that application.
* For example going back, going home, opening recents, etc.
*
* @param action The action to perform.
* @return Whether the action was successfully performed.
*
* @see android.accessibilityservice.AccessibilityService#GLOBAL_ACTION_BACK
* @see android.accessibilityservice.AccessibilityService#GLOBAL_ACTION_HOME
* @see android.accessibilityservice.AccessibilityService#GLOBAL_ACTION_NOTIFICATIONS
* @see android.accessibilityservice.AccessibilityService#GLOBAL_ACTION_RECENTS
*/
public final boolean performGlobalAction(int action) {
final IAccessibilityServiceConnection connection;
synchronized (mLock) {
throwIfNotConnectedLocked();
connection = AccessibilityInteractionClient.getInstance()
.getConnection(mConnectionId);
}
// Calling out without a lock held.
if (connection != null) {
try {
return connection.performGlobalAction(action);
} catch (RemoteException re) {
Log.w(LOG_TAG, "Error while calling performGlobalAction", re);
}
}
return false;
}
/**
* Find the view that has the specified focus type. The search is performed
* across all windows.
* <p>
* <strong>Note:</strong> In order to access the windows you have to opt-in
* to retrieve the interactive windows by setting the
* {@link AccessibilityServiceInfo#FLAG_RETRIEVE_INTERACTIVE_WINDOWS} flag.
* Otherwise, the search will be performed only in the active window.
* </p>
*
* @param focus The focus to find. One of {@link AccessibilityNodeInfo#FOCUS_INPUT} or
* {@link AccessibilityNodeInfo#FOCUS_ACCESSIBILITY}.
* @return The node info of the focused view or null.
*
* @see AccessibilityNodeInfo#FOCUS_INPUT
* @see AccessibilityNodeInfo#FOCUS_ACCESSIBILITY
*/
public AccessibilityNodeInfo findFocus(int focus) {
return AccessibilityInteractionClient.getInstance().findFocus(mConnectionId,
AccessibilityNodeInfo.ANY_WINDOW_ID, AccessibilityNodeInfo.ROOT_NODE_ID, focus);
}
/**
* Gets the an {@link AccessibilityServiceInfo} describing this UiAutomation.
* This method is useful if one wants to change some of the dynamically
* configurable properties at runtime.
*
* @return The accessibility service info.
*
* @see AccessibilityServiceInfo
*/
public final AccessibilityServiceInfo getServiceInfo() {
final IAccessibilityServiceConnection connection;
synchronized (mLock) {
throwIfNotConnectedLocked();
connection = AccessibilityInteractionClient.getInstance()
.getConnection(mConnectionId);
}
// Calling out without a lock held.
if (connection != null) {
try {
return connection.getServiceInfo();
} catch (RemoteException re) {
Log.w(LOG_TAG, "Error while getting AccessibilityServiceInfo", re);
}
}
return null;
}
/**
* Sets the {@link AccessibilityServiceInfo} that describes how this
* UiAutomation will be handled by the platform accessibility layer.
*
* @param info The info.
*
* @see AccessibilityServiceInfo
*/
public final void setServiceInfo(AccessibilityServiceInfo info) {
final IAccessibilityServiceConnection connection;
synchronized (mLock) {
throwIfNotConnectedLocked();
AccessibilityInteractionClient.getInstance().clearCache();
connection = AccessibilityInteractionClient.getInstance()
.getConnection(mConnectionId);
}
// Calling out without a lock held.
if (connection != null) {
try {
connection.setServiceInfo(info);
} catch (RemoteException re) {
Log.w(LOG_TAG, "Error while setting AccessibilityServiceInfo", re);
}
}
}
/**
* Gets the windows on the screen. This method returns only the windows
* that a sighted user can interact with, as opposed to all windows.
* For example, if there is a modal dialog shown and the user cannot touch
* anything behind it, then only the modal window will be reported
* (assuming it is the top one). For convenience the returned windows
* are ordered in a descending layer order, which is the windows that
* are higher in the Z-order are reported first.
* <p>
* <strong>Note:</strong> In order to access the windows you have to opt-in
* to retrieve the interactive windows by setting the
* {@link AccessibilityServiceInfo#FLAG_RETRIEVE_INTERACTIVE_WINDOWS} flag.
* </p>
*
* @return The windows if there are windows such, otherwise an empty list.
*/
public List<AccessibilityWindowInfo> getWindows() {
final int connectionId;
synchronized (mLock) {
throwIfNotConnectedLocked();
connectionId = mConnectionId;
}
// Calling out without a lock held.
return AccessibilityInteractionClient.getInstance()
.getWindows(connectionId);
}
/**
* Gets the root {@link AccessibilityNodeInfo} in the active window.
*
* @return The root info.
*/
public AccessibilityNodeInfo getRootInActiveWindow() {
final int connectionId;
synchronized (mLock) {
throwIfNotConnectedLocked();
connectionId = mConnectionId;
}
// Calling out without a lock held.
return AccessibilityInteractionClient.getInstance()
.getRootInActiveWindow(connectionId);
}
/**
* A method for injecting an arbitrary input event.
* <p>
* <strong>Note:</strong> It is caller's responsibility to recycle the event.
* </p>
* @param event The event to inject.
* @param sync Whether to inject the event synchronously.
* @return Whether event injection succeeded.
*/
public boolean injectInputEvent(InputEvent event, boolean sync) {
synchronized (mLock) {
throwIfNotConnectedLocked();
}
try {
if (DEBUG) {
Log.i(LOG_TAG, "Injecting: " + event + " sync: " + sync);
}
// Calling out without a lock held.
return mUiAutomationConnection.injectInputEvent(event, sync);
} catch (RemoteException re) {
Log.e(LOG_TAG, "Error while injecting input event!", re);
}
return false;
}
/**
* Sets the device rotation. A client can freeze the rotation in
* desired state or freeze the rotation to its current state or
* unfreeze the rotation (rotating the device changes its rotation
* state).
*
* @param rotation The desired rotation.
* @return Whether the rotation was set successfully.
*
* @see #ROTATION_FREEZE_0
* @see #ROTATION_FREEZE_90
* @see #ROTATION_FREEZE_180
* @see #ROTATION_FREEZE_270
* @see #ROTATION_FREEZE_CURRENT
* @see #ROTATION_UNFREEZE
*/
public boolean setRotation(int rotation) {
synchronized (mLock) {
throwIfNotConnectedLocked();
}
switch (rotation) {
case ROTATION_FREEZE_0:
case ROTATION_FREEZE_90:
case ROTATION_FREEZE_180:
case ROTATION_FREEZE_270:
case ROTATION_UNFREEZE:
case ROTATION_FREEZE_CURRENT: {
try {
// Calling out without a lock held.
mUiAutomationConnection.setRotation(rotation);
return true;
} catch (RemoteException re) {
Log.e(LOG_TAG, "Error while setting rotation!", re);
}
} return false;
default: {
throw new IllegalArgumentException("Invalid rotation.");
}
}
}
/**
* Executes a command and waits for a specific accessibility event up to a
* given wait timeout. To detect a sequence of events one can implement a
* filter that keeps track of seen events of the expected sequence and
* returns true after the last event of that sequence is received.
* <p>
* <strong>Note:</strong> It is caller's responsibility to recycle the returned event.
* </p>
* @param command The command to execute.
* @param filter Filter that recognizes the expected event.
* @param timeoutMillis The wait timeout in milliseconds.
*
* @throws TimeoutException If the expected event is not received within the timeout.
*/
public AccessibilityEvent executeAndWaitForEvent(Runnable command,
AccessibilityEventFilter filter, long timeoutMillis) throws TimeoutException {
// Acquire the lock and prepare for receiving events.
synchronized (mLock) {
throwIfNotConnectedLocked();
mEventQueue.clear();
// Prepare to wait for an event.
mWaitingForEventDelivery = true;
}
// Note: We have to release the lock since calling out with this lock held
// can bite. We will correctly filter out events from other interactions,
// so starting to collect events before running the action is just fine.
// We will ignore events from previous interactions.
final long executionStartTimeMillis = SystemClock.uptimeMillis();
// Execute the command *without* the lock being held.
command.run();
// Acquire the lock and wait for the event.
synchronized (mLock) {
try {
// Wait for the event.
final long startTimeMillis = SystemClock.uptimeMillis();
while (true) {
// Drain the event queue
while (!mEventQueue.isEmpty()) {
AccessibilityEvent event = mEventQueue.remove(0);
// Ignore events from previous interactions.
if (event.getEventTime() < executionStartTimeMillis) {
continue;
}
if (filter.accept(event)) {
return event;
}
event.recycle();
}
// Check if timed out and if not wait.
final long elapsedTimeMillis = SystemClock.uptimeMillis() - startTimeMillis;
final long remainingTimeMillis = timeoutMillis - elapsedTimeMillis;
if (remainingTimeMillis <= 0) {
throw new TimeoutException("Expected event not received within: "
+ timeoutMillis + " ms.");
}
try {
mLock.wait(remainingTimeMillis);
} catch (InterruptedException ie) {
/* ignore */
}
}
} finally {
mWaitingForEventDelivery = false;
mEventQueue.clear();
mLock.notifyAll();
}
}
}
/**
* Waits for the accessibility event stream to become idle, which is not to
* have received an accessibility event within <code>idleTimeoutMillis</code>.
* The total time spent to wait for an idle accessibility event stream is bounded
* by the <code>globalTimeoutMillis</code>.
*
* @param idleTimeoutMillis The timeout in milliseconds between two events
* to consider the device idle.
* @param globalTimeoutMillis The maximal global timeout in milliseconds in
* which to wait for an idle state.
*
* @throws TimeoutException If no idle state was detected within
* <code>globalTimeoutMillis.</code>
*/
public void waitForIdle(long idleTimeoutMillis, long globalTimeoutMillis)
throws TimeoutException {
synchronized (mLock) {
throwIfNotConnectedLocked();
final long startTimeMillis = SystemClock.uptimeMillis();
if (mLastEventTimeMillis <= 0) {
mLastEventTimeMillis = startTimeMillis;
}
while (true) {
final long currentTimeMillis = SystemClock.uptimeMillis();
// Did we get idle state within the global timeout?
final long elapsedGlobalTimeMillis = currentTimeMillis - startTimeMillis;
final long remainingGlobalTimeMillis =
globalTimeoutMillis - elapsedGlobalTimeMillis;
if (remainingGlobalTimeMillis <= 0) {
throw new TimeoutException("No idle state with idle timeout: "
+ idleTimeoutMillis + " within global timeout: "
+ globalTimeoutMillis);
}
// Did we get an idle state within the idle timeout?
final long elapsedIdleTimeMillis = currentTimeMillis - mLastEventTimeMillis;
final long remainingIdleTimeMillis = idleTimeoutMillis - elapsedIdleTimeMillis;
if (remainingIdleTimeMillis <= 0) {
return;
}
try {
mLock.wait(remainingIdleTimeMillis);
} catch (InterruptedException ie) {
/* ignore */
}
}
}
}
/**
* Takes a screenshot.
*
* @return The screenshot bitmap on success, null otherwise.
*/
public Bitmap takeScreenshot() {
synchronized (mLock) {
throwIfNotConnectedLocked();
}
Display display = DisplayManagerGlobal.getInstance()
.getRealDisplay(Display.DEFAULT_DISPLAY);
Point displaySize = new Point();
display.getRealSize(displaySize);
final int displayWidth = displaySize.x;
final int displayHeight = displaySize.y;
final float screenshotWidth;
final float screenshotHeight;
final int rotation = display.getRotation();
switch (rotation) {
case ROTATION_FREEZE_0: {
screenshotWidth = displayWidth;
screenshotHeight = displayHeight;
} break;
case ROTATION_FREEZE_90: {
screenshotWidth = displayHeight;
screenshotHeight = displayWidth;
} break;
case ROTATION_FREEZE_180: {
screenshotWidth = displayWidth;
screenshotHeight = displayHeight;
} break;
case ROTATION_FREEZE_270: {
screenshotWidth = displayHeight;
screenshotHeight = displayWidth;
} break;
default: {
throw new IllegalArgumentException("Invalid rotation: "
+ rotation);
}
}
// Take the screenshot
Bitmap screenShot = null;
try {
// Calling out without a lock held.
screenShot = mUiAutomationConnection.takeScreenshot((int) screenshotWidth,
(int) screenshotHeight);
if (screenShot == null) {
return null;
}
} catch (RemoteException re) {
Log.e(LOG_TAG, "Error while taking screnshot!", re);
return null;
}
// Rotate the screenshot to the current orientation
if (rotation != ROTATION_FREEZE_0) {
Bitmap unrotatedScreenShot = Bitmap.createBitmap(displayWidth, displayHeight,
Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(unrotatedScreenShot);
canvas.translate(unrotatedScreenShot.getWidth() / 2,
unrotatedScreenShot.getHeight() / 2);
canvas.rotate(getDegreesForRotation(rotation));
canvas.translate(- screenshotWidth / 2, - screenshotHeight / 2);
canvas.drawBitmap(screenShot, 0, 0, null);
canvas.setBitmap(null);
screenShot.recycle();
screenShot = unrotatedScreenShot;
}
// Optimization
screenShot.setHasAlpha(false);
return screenShot;
}
/**
* Sets whether this UiAutomation to run in a "monkey" mode. Applications can query whether
* they are executed in a "monkey" mode, i.e. run by a test framework, and avoid doing
* potentially undesirable actions such as calling 911 or posting on public forums etc.
*
* @param enable whether to run in a "monkey" mode or not. Default is not.
* @see {@link android.app.ActivityManager#isUserAMonkey()}
*/
public void setRunAsMonkey(boolean enable) {
synchronized (mLock) {
throwIfNotConnectedLocked();
}
try {
ActivityManagerNative.getDefault().setUserIsMonkey(enable);
} catch (RemoteException re) {
Log.e(LOG_TAG, "Error while setting run as monkey!", re);
}
}
/**
* Clears the frame statistics for the content of a given window. These
* statistics contain information about the most recently rendered content
* frames.
*
* @param windowId The window id.
* @return Whether the window is present and its frame statistics
* were cleared.
*
* @see android.view.WindowContentFrameStats
* @see #getWindowContentFrameStats(int)
* @see #getWindows()
* @see AccessibilityWindowInfo#getId() AccessibilityWindowInfo.getId()
*/
public boolean clearWindowContentFrameStats(int windowId) {
synchronized (mLock) {
throwIfNotConnectedLocked();
}
try {
if (DEBUG) {
Log.i(LOG_TAG, "Clearing content frame stats for window: " + windowId);
}
// Calling out without a lock held.
return mUiAutomationConnection.clearWindowContentFrameStats(windowId);
} catch (RemoteException re) {
Log.e(LOG_TAG, "Error clearing window content frame stats!", re);
}
return false;
}
/**
* Gets the frame statistics for a given window. These statistics contain
* information about the most recently rendered content frames.
* <p>
* A typical usage requires clearing the window frame statistics via {@link
* #clearWindowContentFrameStats(int)} followed by an interaction with the UI and
* finally getting the window frame statistics via calling this method.
* </p>
* <pre>
* // Assume we have at least one window.
* final int windowId = getWindows().get(0).getId();
*
* // Start with a clean slate.
* uiAutimation.clearWindowContentFrameStats(windowId);
*
* // Do stuff with the UI.
*
* // Get the frame statistics.
* WindowContentFrameStats stats = uiAutomation.getWindowContentFrameStats(windowId);
* </pre>
*
* @param windowId The window id.
* @return The window frame statistics, or null if the window is not present.
*
* @see android.view.WindowContentFrameStats
* @see #clearWindowContentFrameStats(int)
* @see #getWindows()
* @see AccessibilityWindowInfo#getId() AccessibilityWindowInfo.getId()
*/
public WindowContentFrameStats getWindowContentFrameStats(int windowId) {
synchronized (mLock) {
throwIfNotConnectedLocked();
}
try {
if (DEBUG) {
Log.i(LOG_TAG, "Getting content frame stats for window: " + windowId);
}
// Calling out without a lock held.
return mUiAutomationConnection.getWindowContentFrameStats(windowId);
} catch (RemoteException re) {
Log.e(LOG_TAG, "Error getting window content frame stats!", re);
}
return null;
}
/**
* Clears the window animation rendering statistics. These statistics contain
* information about the most recently rendered window animation frames, i.e.
* for window transition animations.
*
* @see android.view.WindowAnimationFrameStats
* @see #getWindowAnimationFrameStats()
* @see android.R.styleable#WindowAnimation
*/
public void clearWindowAnimationFrameStats() {
synchronized (mLock) {
throwIfNotConnectedLocked();
}
try {
if (DEBUG) {
Log.i(LOG_TAG, "Clearing window animation frame stats");
}
// Calling out without a lock held.
mUiAutomationConnection.clearWindowAnimationFrameStats();
} catch (RemoteException re) {
Log.e(LOG_TAG, "Error clearing window animation frame stats!", re);
}
}
/**
* Gets the window animation frame statistics. These statistics contain
* information about the most recently rendered window animation frames, i.e.
* for window transition animations.
*
* <p>
* A typical usage requires clearing the window animation frame statistics via
* {@link #clearWindowAnimationFrameStats()} followed by an interaction that causes
* a window transition which uses a window animation and finally getting the window
* animation frame statistics by calling this method.
* </p>
* <pre>
* // Start with a clean slate.
* uiAutimation.clearWindowAnimationFrameStats();
*
* // Do stuff to trigger a window transition.
*
* // Get the frame statistics.
* WindowAnimationFrameStats stats = uiAutomation.getWindowAnimationFrameStats();
* </pre>
*
* @return The window animation frame statistics.
*
* @see android.view.WindowAnimationFrameStats
* @see #clearWindowAnimationFrameStats()
* @see android.R.styleable#WindowAnimation
*/
public WindowAnimationFrameStats getWindowAnimationFrameStats() {
synchronized (mLock) {
throwIfNotConnectedLocked();
}
try {
if (DEBUG) {
Log.i(LOG_TAG, "Getting window animation frame stats");
}
// Calling out without a lock held.
return mUiAutomationConnection.getWindowAnimationFrameStats();
} catch (RemoteException re) {
Log.e(LOG_TAG, "Error getting window animation frame stats!", re);
}
return null;
}
/**
* Executes a shell command. This method returs a file descriptor that points
* to the standard output stream. The command execution is similar to running
* "adb shell <command>" from a host connected to the device.
* <p>
* <strong>Note:</strong> It is your responsibility to close the retunred file
* descriptor once you are done reading.
* </p>
*
* @param command The command to execute.
* @return A file descriptor to the standard output stream.
*/
public ParcelFileDescriptor executeShellCommand(String command) {
synchronized (mLock) {
throwIfNotConnectedLocked();
}
ParcelFileDescriptor source = null;
ParcelFileDescriptor sink = null;
try {
ParcelFileDescriptor[] pipe = ParcelFileDescriptor.createPipe();
source = pipe[0];
sink = pipe[1];
// Calling out without a lock held.
mUiAutomationConnection.executeShellCommand(command, sink);
} catch (IOException ioe) {
Log.e(LOG_TAG, "Error executing shell command!", ioe);
} catch (RemoteException re) {
Log.e(LOG_TAG, "Error executing shell command!", re);
} finally {
IoUtils.closeQuietly(sink);
}
return source;
}
private static float getDegreesForRotation(int value) {
switch (value) {
case Surface.ROTATION_90: {
return 360f - 90f;
}
case Surface.ROTATION_180: {
return 360f - 180f;
}
case Surface.ROTATION_270: {
return 360f - 270f;
} default: {
return 0;
}
}
}
private boolean isConnectedLocked() {
return mConnectionId != CONNECTION_ID_UNDEFINED;
}
private void throwIfConnectedLocked() {
if (mConnectionId != CONNECTION_ID_UNDEFINED) {
throw new IllegalStateException("UiAutomation not connected!");
}
}
private void throwIfNotConnectedLocked() {
if (!isConnectedLocked()) {
throw new IllegalStateException("UiAutomation not connected!");
}
}
private class IAccessibilityServiceClientImpl extends IAccessibilityServiceClientWrapper {
public IAccessibilityServiceClientImpl(Looper looper) {
super(null, looper, new Callbacks() {
@Override
public void init(int connectionId, IBinder windowToken) {
synchronized (mLock) {
mConnectionId = connectionId;
mLock.notifyAll();
}
}
@Override
public void onServiceConnected() {
/* do nothing */
}
@Override
public void onInterrupt() {
/* do nothing */
}
@Override
public boolean onGesture(int gestureId) {
/* do nothing */
return false;
}
@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
synchronized (mLock) {
mLastEventTimeMillis = event.getEventTime();
if (mWaitingForEventDelivery) {
mEventQueue.add(AccessibilityEvent.obtain(event));
}
mLock.notifyAll();
}
// Calling out only without a lock held.
final OnAccessibilityEventListener listener = mOnAccessibilityEventListener;
if (listener != null) {
listener.onAccessibilityEvent(AccessibilityEvent.obtain(event));
}
}
@Override
public boolean onKeyEvent(KeyEvent event) {
return false;
}
});
}
}
}
|
