Java程序
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/*
* Copyright (C) 2017 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.view.autofill;
import static android.service.autofill.FillRequest.FLAG_MANUAL_REQUEST;
import static android.view.autofill.Helper.sDebug;
import static android.view.autofill.Helper.sVerbose;
import android.accessibilityservice.AccessibilityServiceInfo;
import android.annotation.IntDef;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.RequiresFeature;
import android.annotation.SystemService;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentSender;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.Rect;
import android.metrics.LogMaker;
import android.os.Bundle;
import android.os.IBinder;
import android.os.Parcelable;
import android.os.RemoteException;
import android.service.autofill.AutofillService;
import android.service.autofill.FillEventHistory;
import android.service.autofill.UserData;
import android.util.ArrayMap;
import android.util.ArraySet;
import android.util.Log;
import android.util.SparseArray;
import android.view.Choreographer;
import android.view.KeyEvent;
import android.view.View;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityManager;
import android.view.accessibility.AccessibilityNodeInfo;
import android.view.accessibility.AccessibilityNodeProvider;
import android.view.accessibility.AccessibilityWindowInfo;
import com.android.internal.annotations.GuardedBy;
import com.android.internal.logging.MetricsLogger;
import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
import com.android.internal.util.ArrayUtils;
import com.android.internal.util.Preconditions;
import org.xmlpull.v1.XmlPullParserException;
import java.io.IOException;
import java.io.PrintWriter;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
//TODO: use java.lang.ref.Cleaner once Android supports Java 9
import sun.misc.Cleaner;
/**
* The {@link AutofillManager} provides ways for apps and custom views to integrate with the
* Autofill Framework lifecycle.
*
* <p>The autofill lifecycle starts with the creation of an autofill context associated with an
* activity context; the autofill context is created when one of the following methods is called for
* the first time in an activity context, and the current user has an enabled autofill service:
*
* <ul>
* <li>{@link #notifyViewEntered(View)}
* <li>{@link #notifyViewEntered(View, int, Rect)}
* <li>{@link #requestAutofill(View)}
* </ul>
*
* <p>Tipically, the context is automatically created when the first view of the activity is
* focused because {@code View.onFocusChanged()} indirectly calls
* {@link #notifyViewEntered(View)}. App developers can call {@link #requestAutofill(View)} to
* explicitly create it (for example, a custom view developer could offer a contextual menu action
* in a text-field view to let users manually request autofill).
*
* <p>After the context is created, the Android System creates a {@link android.view.ViewStructure}
* that represents the view hierarchy by calling
* {@link View#dispatchProvideAutofillStructure(android.view.ViewStructure, int)} in the root views
* of all application windows. By default, {@code dispatchProvideAutofillStructure()} results in
* subsequent calls to {@link View#onProvideAutofillStructure(android.view.ViewStructure, int)} and
* {@link View#onProvideAutofillVirtualStructure(android.view.ViewStructure, int)} for each view in
* the hierarchy.
*
* <p>The resulting {@link android.view.ViewStructure} is then passed to the autofill service, which
* parses it looking for views that can be autofilled. If the service finds such views, it returns
* a data structure to the Android System containing the following optional info:
*
* <ul>
* <li>Datasets used to autofill subsets of views in the activity.
* <li>Id of views that the service can save their values for future autofilling.
* </ul>
*
* <p>When the service returns datasets, the Android System displays an autofill dataset picker
* UI associated with the view, when the view is focused on and is part of a dataset.
* The application can be notified when the UI is shown by registering an
* {@link AutofillCallback} through {@link #registerCallback(AutofillCallback)}. When the user
* selects a dataset from the UI, all views present in the dataset are autofilled, through
* calls to {@link View#autofill(AutofillValue)} or {@link View#autofill(SparseArray)}.
*
* <p>When the service returns ids of savable views, the Android System keeps track of changes
* made to these views, so they can be used to determine if the autofill save UI is shown later.
*
* <p>The context is then finished when one of the following occurs:
*
* <ul>
* <li>{@link #commit()} is called or all savable views are gone.
* <li>{@link #cancel()} is called.
* </ul>
*
* <p>Finally, after the autofill context is commited (i.e., not cancelled), the Android System
* shows an autofill save UI if the value of savable views have changed. If the user selects the
* option to Save, the current value of the views is then sent to the autofill service.
*
* <p>It is safe to call into its methods from any thread.
*/
@SystemService(Context.AUTOFILL_MANAGER_SERVICE)
@RequiresFeature(PackageManager.FEATURE_AUTOFILL)
public final class AutofillManager {
private static final String TAG = "AutofillManager";
/**
* Intent extra: The assist structure which captures the filled screen.
*
* <p>
* Type: {@link android.app.assist.AssistStructure}
*/
public static final String EXTRA_ASSIST_STRUCTURE =
"android.view.autofill.extra.ASSIST_STRUCTURE";
/**
* Intent extra: The result of an authentication operation. It is
* either a fully populated {@link android.service.autofill.FillResponse}
* or a fully populated {@link android.service.autofill.Dataset} if
* a response or a dataset is being authenticated respectively.
*
* <p>
* Type: {@link android.service.autofill.FillResponse} or a
* {@link android.service.autofill.Dataset}
*/
public static final String EXTRA_AUTHENTICATION_RESULT =
"android.view.autofill.extra.AUTHENTICATION_RESULT";
/**
* Intent extra: The optional extras provided by the
* {@link android.service.autofill.AutofillService}.
*
* <p>For example, when the service responds to a {@link
* android.service.autofill.FillCallback#onSuccess(android.service.autofill.FillResponse)} with
* a {@code FillResponse} that requires authentication, the Intent that launches the
* service authentication will contain the Bundle set by
* {@link android.service.autofill.FillResponse.Builder#setClientState(Bundle)} on this extra.
*
* <p>On Android {@link android.os.Build.VERSION_CODES#P} and higher, the autofill service
* can also add this bundle to the {@link Intent} set as the
* {@link android.app.Activity#setResult(int, Intent) result} for an authentication request,
* so the bundle can be recovered later on
* {@link android.service.autofill.SaveRequest#getClientState()}.
*
* <p>
* Type: {@link android.os.Bundle}
*/
public static final String EXTRA_CLIENT_STATE =
"android.view.autofill.extra.CLIENT_STATE";
/** @hide */
public static final String EXTRA_RESTORE_SESSION_TOKEN =
"android.view.autofill.extra.RESTORE_SESSION_TOKEN";
private static final String SESSION_ID_TAG = "android:sessionId";
private static final String STATE_TAG = "android:state";
private static final String LAST_AUTOFILLED_DATA_TAG = "android:lastAutoFilledData";
/** @hide */ public static final int ACTION_START_SESSION = 1;
/** @hide */ public static final int ACTION_VIEW_ENTERED = 2;
/** @hide */ public static final int ACTION_VIEW_EXITED = 3;
/** @hide */ public static final int ACTION_VALUE_CHANGED = 4;
/** @hide */ public static final int FLAG_ADD_CLIENT_ENABLED = 0x1;
/** @hide */ public static final int FLAG_ADD_CLIENT_DEBUG = 0x2;
/** @hide */ public static final int FLAG_ADD_CLIENT_VERBOSE = 0x4;
/** Which bits in an authentication id are used for the dataset id */
private static final int AUTHENTICATION_ID_DATASET_ID_MASK = 0xFFFF;
/** How many bits in an authentication id are used for the dataset id */
private static final int AUTHENTICATION_ID_DATASET_ID_SHIFT = 16;
/** @hide The index for an undefined data set */
public static final int AUTHENTICATION_ID_DATASET_ID_UNDEFINED = 0xFFFF;
/**
* Used on {@link #onPendingSaveUi(int, IBinder)} to cancel the pending UI.
*
* @hide
*/
public static final int PENDING_UI_OPERATION_CANCEL = 1;
/**
* Used on {@link #onPendingSaveUi(int, IBinder)} to restore the pending UI.
*
* @hide
*/
public static final int PENDING_UI_OPERATION_RESTORE = 2;
/**
* Initial state of the autofill context, set when there is no session (i.e., when
* {@link #mSessionId} is {@link #NO_SESSION}).
*
* <p>In this state, app callbacks (such as {@link #notifyViewEntered(View)}) are notified to
* the server.
*
* @hide
*/
public static final int STATE_UNKNOWN = 0;
/**
* State where the autofill context hasn't been {@link #commit() finished} nor
* {@link #cancel() canceled} yet.
*
* @hide
*/
public static final int STATE_ACTIVE = 1;
/**
* State where the autofill context was finished by the server because the autofill
* service could not autofill the activity.
*
* <p>In this state, most apps callback (such as {@link #notifyViewEntered(View)}) are ignored,
* exception {@link #requestAutofill(View)} (and {@link #requestAutofill(View, int, Rect)}).
*
* @hide
*/
public static final int STATE_FINISHED = 2;
/**
* State where the autofill context has been {@link #commit() finished} but the server still has
* a session because the Save UI hasn't been dismissed yet.
*
* @hide
*/
public static final int STATE_SHOWING_SAVE_UI = 3;
/**
* State where the autofill is disabled because the service cannot autofill the activity at all.
*
* <p>In this state, every call is ignored, even {@link #requestAutofill(View)}
* (and {@link #requestAutofill(View, int, Rect)}).
*
* @hide
*/
public static final int STATE_DISABLED_BY_SERVICE = 4;
/**
* Same as {@link #STATE_UNKNOWN}, but used on
* {@link AutofillManagerClient#setSessionFinished(int)} when the session was finished because
* the URL bar changed on client mode
*
* @hide
*/
public static final int STATE_UNKNOWN_COMPAT_MODE = 5;
/**
* Timeout in ms for calls to the field classification service.
* @hide
*/
public static final int FC_SERVICE_TIMEOUT = 5000;
/**
* Makes an authentication id from a request id and a dataset id.
*
* @param requestId The request id.
* @param datasetId The dataset id.
* @return The authentication id.
* @hide
*/
public static int makeAuthenticationId(int requestId, int datasetId) {
return (requestId << AUTHENTICATION_ID_DATASET_ID_SHIFT)
| (datasetId & AUTHENTICATION_ID_DATASET_ID_MASK);
}
/**
* Gets the request id from an authentication id.
*
* @param authRequestId The authentication id.
* @return The request id.
* @hide
*/
public static int getRequestIdFromAuthenticationId(int authRequestId) {
return (authRequestId >> AUTHENTICATION_ID_DATASET_ID_SHIFT);
}
/**
* Gets the dataset id from an authentication id.
*
* @param authRequestId The authentication id.
* @return The dataset id.
* @hide
*/
public static int getDatasetIdFromAuthenticationId(int authRequestId) {
return (authRequestId & AUTHENTICATION_ID_DATASET_ID_MASK);
}
private final MetricsLogger mMetricsLogger = new MetricsLogger();
/**
* There is currently no session running.
* {@hide}
*/
public static final int NO_SESSION = Integer.MIN_VALUE;
private final IAutoFillManager mService;
private final Object mLock = new Object();
@GuardedBy("mLock")
private IAutoFillManagerClient mServiceClient;
@GuardedBy("mLock")
private Cleaner mServiceClientCleaner;
@GuardedBy("mLock")
private AutofillCallback mCallback;
private final Context mContext;
@GuardedBy("mLock")
private int mSessionId = NO_SESSION;
@GuardedBy("mLock")
private int mState = STATE_UNKNOWN;
@GuardedBy("mLock")
private boolean mEnabled;
/** If a view changes to this mapping the autofill operation was successful */
@GuardedBy("mLock")
@Nullable private ParcelableMap mLastAutofilledData;
/** If view tracking is enabled, contains the tracking state */
@GuardedBy("mLock")
@Nullable private TrackedViews mTrackedViews;
/** Views that are only tracked because they are fillable and could be anchoring the UI. */
@GuardedBy("mLock")
@Nullable private ArraySet<AutofillId> mFillableIds;
/** id of last requested autofill ui */
@Nullable private AutofillId mIdShownFillUi;
/**
* Views that were already "entered" - if they're entered again when the session is not active,
* they're ignored
* */
@GuardedBy("mLock")
@Nullable private ArraySet<AutofillId> mEnteredIds;
/** If set, session is commited when the field is clicked. */
@GuardedBy("mLock")
@Nullable private AutofillId mSaveTriggerId;
/** set to true when onInvisibleForAutofill is called, used by onAuthenticationResult */
@GuardedBy("mLock")
private boolean mOnInvisibleCalled;
/** If set, session is commited when the activity is finished; otherwise session is canceled. */
@GuardedBy("mLock")
private boolean mSaveOnFinish;
/** If compatibility mode is enabled - this is a bridge to interact with a11y */
@GuardedBy("mLock")
private CompatibilityBridge mCompatibilityBridge;
/** @hide */
public interface AutofillClient {
/**
* Asks the client to start an authentication flow.
*
* @param authenticationId A unique id of the authentication operation.
* @param intent The authentication intent.
* @param fillInIntent The authentication fill-in intent.
*/
void autofillClientAuthenticate(int authenticationId, IntentSender intent,
Intent fillInIntent);
/**
* Tells the client this manager has state to be reset.
*/
void autofillClientResetableStateAvailable();
/**
* Request showing the autofill UI.
*
* @param anchor The real view the UI needs to anchor to.
* @param width The width of the fill UI content.
* @param height The height of the fill UI content.
* @param virtualBounds The bounds of the virtual decendant of the anchor.
* @param presenter The presenter that controls the fill UI window.
* @return Whether the UI was shown.
*/
boolean autofillClientRequestShowFillUi(@NonNull View anchor, int width, int height,
@Nullable Rect virtualBounds, IAutofillWindowPresenter presenter);
/**
* Dispatch unhandled keyevent from Autofill window
* @param anchor The real view the UI needs to anchor to.
* @param keyEvent Unhandled KeyEvent from autofill window.
*/
void autofillClientDispatchUnhandledKey(@NonNull View anchor, @NonNull KeyEvent keyEvent);
/**
* Request hiding the autofill UI.
*
* @return Whether the UI was hidden.
*/
boolean autofillClientRequestHideFillUi();
/**
* Gets whether the fill UI is currenlty being shown.
*
* @return Whether the fill UI is currently being shown
*/
boolean autofillClientIsFillUiShowing();
/**
* Checks if views are currently attached and visible.
*
* @return And array with {@code true} iff the view is attached or visible
*/
@NonNull boolean[] autofillClientGetViewVisibility(@NonNull AutofillId[] autofillIds);
/**
* Checks is the client is currently visible as understood by autofill.
*
* @return {@code true} if the client is currently visible
*/
boolean autofillClientIsVisibleForAutofill();
/**
* Client might disable enter/exit event e.g. when activity is paused.
*/
boolean isDisablingEnterExitEventForAutofill();
/**
* Finds views by traversing the hierarchies of the client.
*
* @param autofillIds The autofill ids of the views to find
*
* @return And array containing the views (empty if no views found).
*/
@NonNull View[] autofillClientFindViewsByAutofillIdTraversal(
@NonNull AutofillId[] autofillIds);
/**
* Finds a view by traversing the hierarchies of the client.
*
* @param autofillId The autofill id of the views to find
*
* @return The view, or {@code null} if not found
*/
@Nullable View autofillClientFindViewByAutofillIdTraversal(@NonNull AutofillId autofillId);
/**
* Finds a view by a11y id in a given client window.
*
* @param viewId The accessibility id of the views to find
* @param windowId The accessibility window id where to search
*
* @return The view, or {@code null} if not found
*/
@Nullable View autofillClientFindViewByAccessibilityIdTraversal(int viewId, int windowId);
/**
* Runs the specified action on the UI thread.
*/
void autofillClientRunOnUiThread(Runnable action);
/**
* Gets the complete component name of this client.
*/
ComponentName autofillClientGetComponentName();
/**
* Gets the activity token
*/
@Nullable IBinder autofillClientGetActivityToken();
/**
* @return Whether compatibility mode is enabled.
*/
boolean autofillClientIsCompatibilityModeEnabled();
/**
* Gets the next unique autofill ID.
*
* <p>Typically used to manage views whose content is recycled - see
* {@link View#setAutofillId(AutofillId)} for more info.
*
* @return An ID that is unique in the activity.
*/
@Nullable AutofillId autofillClientGetNextAutofillId();
}
/**
* @hide
*/
public AutofillManager(Context context, IAutoFillManager service) {
mContext = Preconditions.checkNotNull(context, "context cannot be null");
mService = service;
}
/**
* @hide
*/
public void enableCompatibilityMode() {
synchronized (mLock) {
// The accessibility manager is a singleton so we may need to plug
// different bridge based on which activity is currently focused
// in the current process. Since compat would be rarely used, just
// create and register a new instance every time.
mCompatibilityBridge = new CompatibilityBridge();
}
}
/**
* Restore state after activity lifecycle
*
* @param savedInstanceState The state to be restored
*
* {@hide}
*/
public void onCreate(Bundle savedInstanceState) {
if (!hasAutofillFeature()) {
return;
}
synchronized (mLock) {
mLastAutofilledData = savedInstanceState.getParcelable(LAST_AUTOFILLED_DATA_TAG);
if (isActiveLocked()) {
Log.w(TAG, "New session was started before onCreate()");
return;
}
mSessionId = savedInstanceState.getInt(SESSION_ID_TAG, NO_SESSION);
mState = savedInstanceState.getInt(STATE_TAG, STATE_UNKNOWN);
if (mSessionId != NO_SESSION) {
ensureServiceClientAddedIfNeededLocked();
final AutofillClient client = getClient();
if (client != null) {
try {
final boolean sessionWasRestored = mService.restoreSession(mSessionId,
client.autofillClientGetActivityToken(),
mServiceClient.asBinder());
if (!sessionWasRestored) {
Log.w(TAG, "Session " + mSessionId + " could not be restored");
mSessionId = NO_SESSION;
mState = STATE_UNKNOWN;
} else {
if (sDebug) {
Log.d(TAG, "session " + mSessionId + " was restored");
}
client.autofillClientResetableStateAvailable();
}
} catch (RemoteException e) {
Log.e(TAG, "Could not figure out if there was an autofill session", e);
}
}
}
}
}
/**
* Called once the client becomes visible.
*
* @see AutofillClient#autofillClientIsVisibleForAutofill()
*
* {@hide}
*/
public void onVisibleForAutofill() {
// This gets called when the client just got visible at which point the visibility
// of the tracked views may not have been computed (due to a pending layout, etc).
// While generally we have no way to know when the UI has settled. We will evaluate
// the tracked views state at the end of next frame to guarantee that everything
// that may need to be laid out is laid out.
Choreographer.getInstance().postCallback(Choreographer.CALLBACK_COMMIT, () -> {
synchronized (mLock) {
if (mEnabled && isActiveLocked() && mTrackedViews != null) {
mTrackedViews.onVisibleForAutofillChangedLocked();
}
}
}, null);
}
/**
* Called once the client becomes invisible.
*
* @see AutofillClient#autofillClientIsVisibleForAutofill()
*
* {@hide}
*/
public void onInvisibleForAutofill() {
synchronized (mLock) {
mOnInvisibleCalled = true;
}
}
/**
* Save state before activity lifecycle
*
* @param outState Place to store the state
*
* {@hide}
*/
public void onSaveInstanceState(Bundle outState) {
if (!hasAutofillFeature()) {
return;
}
synchronized (mLock) {
if (mSessionId != NO_SESSION) {
outState.putInt(SESSION_ID_TAG, mSessionId);
}
if (mState != STATE_UNKNOWN) {
outState.putInt(STATE_TAG, mState);
}
if (mLastAutofilledData != null) {
outState.putParcelable(LAST_AUTOFILLED_DATA_TAG, mLastAutofilledData);
}
}
}
/**
* @hide
*/
@GuardedBy("mLock")
public boolean isCompatibilityModeEnabledLocked() {
return mCompatibilityBridge != null;
}
/**
* Checks whether autofill is enabled for the current user.
*
* <p>Typically used to determine whether the option to explicitly request autofill should
* be offered - see {@link #requestAutofill(View)}.
*
* @return whether autofill is enabled for the current user.
*/
public boolean isEnabled() {
if (!hasAutofillFeature()) {
return false;
}
synchronized (mLock) {
if (isDisabledByServiceLocked()) {
return false;
}
ensureServiceClientAddedIfNeededLocked();
return mEnabled;
}
}
/**
* Should always be called from {@link AutofillService#getFillEventHistory()}.
*
* @hide
*/
@Nullable public FillEventHistory getFillEventHistory() {
try {
return mService.getFillEventHistory();
} catch (RemoteException e) {
e.rethrowFromSystemServer();
return null;
}
}
/**
* Explicitly requests a new autofill context.
*
* <p>Normally, the autofill context is automatically started if necessary when
* {@link #notifyViewEntered(View)} is called, but this method should be used in the
* cases where it must be explicitly started. For example, when the view offers an AUTOFILL
* option on its contextual overflow menu, and the user selects it.
*
* @param view view requesting the new autofill context.
*/
public void requestAutofill(@NonNull View view) {
notifyViewEntered(view, FLAG_MANUAL_REQUEST);
}
/**
* Explicitly requests a new autofill context for virtual views.
*
* <p>Normally, the autofill context is automatically started if necessary when
* {@link #notifyViewEntered(View, int, Rect)} is called, but this method should be used in the
* cases where it must be explicitly started. For example, when the virtual view offers an
* AUTOFILL option on its contextual overflow menu, and the user selects it.
*
* <p>The virtual view boundaries must be absolute screen coordinates. For example, if the
* parent view uses {@code bounds} to draw the virtual view inside its Canvas,
* the absolute bounds could be calculated by:
*
* <pre class="prettyprint">
* int offset[] = new int[2];
* getLocationOnScreen(offset);
* Rect absBounds = new Rect(bounds.left + offset[0],
* bounds.top + offset[1],
* bounds.right + offset[0], bounds.bottom + offset[1]);
* </pre>
*
* @param view the virtual view parent.
* @param virtualId id identifying the virtual child inside the parent view.
* @param absBounds absolute boundaries of the virtual view in the screen.
*/
public void requestAutofill(@NonNull View view, int virtualId, @NonNull Rect absBounds) {
notifyViewEntered(view, virtualId, absBounds, FLAG_MANUAL_REQUEST);
}
/**
* Called when a {@link View} that supports autofill is entered.
*
* @param view {@link View} that was entered.
*/
public void notifyViewEntered(@NonNull View view) {
notifyViewEntered(view, 0);
}
@GuardedBy("mLock")
private boolean shouldIgnoreViewEnteredLocked(@NonNull AutofillId id, int flags) {
if (isDisabledByServiceLocked()) {
if (sVerbose) {
Log.v(TAG, "ignoring notifyViewEntered(flags=" + flags + ", view=" + id
+ ") on state " + getStateAsStringLocked() + " because disabled by svc");
}
return true;
}
if (isFinishedLocked()) {
// Session already finished: ignore if automatic request and view already entered
if ((flags & FLAG_MANUAL_REQUEST) == 0 && mEnteredIds != null
&& mEnteredIds.contains(id)) {
if (sVerbose) {
Log.v(TAG, "ignoring notifyViewEntered(flags=" + flags + ", view=" + id
+ ") on state " + getStateAsStringLocked()
+ " because view was already entered: " + mEnteredIds);
}
return true;
}
}
if (sVerbose) {
Log.v(TAG, "not ignoring notifyViewEntered(flags=" + flags + ", view=" + id
+ ", state " + getStateAsStringLocked() + ", enteredIds=" + mEnteredIds);
}
return false;
}
private boolean isClientVisibleForAutofillLocked() {
final AutofillClient client = getClient();
return client != null && client.autofillClientIsVisibleForAutofill();
}
private boolean isClientDisablingEnterExitEvent() {
final AutofillClient client = getClient();
return client != null && client.isDisablingEnterExitEventForAutofill();
}
private void notifyViewEntered(@NonNull View view, int flags) {
if (!hasAutofillFeature()) {
return;
}
AutofillCallback callback;
synchronized (mLock) {
callback = notifyViewEnteredLocked(view, flags);
}
if (callback != null) {
mCallback.onAutofillEvent(view, AutofillCallback.EVENT_INPUT_UNAVAILABLE);
}
}
/** Returns AutofillCallback if need fire EVENT_INPUT_UNAVAILABLE */
@GuardedBy("mLock")
private AutofillCallback notifyViewEnteredLocked(@NonNull View view, int flags) {
final AutofillId id = view.getAutofillId();
if (shouldIgnoreViewEnteredLocked(id, flags)) return null;
AutofillCallback callback = null;
ensureServiceClientAddedIfNeededLocked();
if (!mEnabled) {
if (mCallback != null) {
callback = mCallback;
}
} else {
// don't notify entered when Activity is already in background
if (!isClientDisablingEnterExitEvent()) {
final AutofillValue value = view.getAutofillValue();
if (!isActiveLocked()) {
// Starts new session.
startSessionLocked(id, null, value, flags);
} else {
// Update focus on existing session.
updateSessionLocked(id, null, value, ACTION_VIEW_ENTERED, flags);
}
addEnteredIdLocked(id);
}
}
return callback;
}
/**
* Called when a {@link View} that supports autofill is exited.
*
* @param view {@link View} that was exited.
*/
public void notifyViewExited(@NonNull View view) {
if (!hasAutofillFeature()) {
return;
}
synchronized (mLock) {
notifyViewExitedLocked(view);
}
}
@GuardedBy("mLock")
void notifyViewExitedLocked(@NonNull View view) {
ensureServiceClientAddedIfNeededLocked();
if (mEnabled && isActiveLocked()) {
// dont notify exited when Activity is already in background
if (!isClientDisablingEnterExitEvent()) {
final AutofillId id = view.getAutofillId();
// Update focus on existing session.
updateSessionLocked(id, null, null, ACTION_VIEW_EXITED, 0);
}
}
}
/**
* Called when a {@link View view's} visibility changed.
*
* @param view {@link View} that was exited.
* @param isVisible visible if the view is visible in the view hierarchy.
*/
public void notifyViewVisibilityChanged(@NonNull View view, boolean isVisible) {
notifyViewVisibilityChangedInternal(view, 0, isVisible, false);
}
/**
* Called when a virtual view's visibility changed.
*
* @param view {@link View} that was exited.
* @param virtualId id identifying the virtual child inside the parent view.
* @param isVisible visible if the view is visible in the view hierarchy.
*/
public void notifyViewVisibilityChanged(@NonNull View view, int virtualId, boolean isVisible) {
notifyViewVisibilityChangedInternal(view, virtualId, isVisible, true);
}
/**
* Called when a view/virtual view's visibility changed.
*
* @param view {@link View} that was exited.
* @param virtualId id identifying the virtual child inside the parent view.
* @param isVisible visible if the view is visible in the view hierarchy.
* @param virtual Whether the view is virtual.
*/
private void notifyViewVisibilityChangedInternal(@NonNull View view, int virtualId,
boolean isVisible, boolean virtual) {
synchronized (mLock) {
if (mEnabled && isActiveLocked()) {
final AutofillId id = virtual ? getAutofillId(view, virtualId)
: view.getAutofillId();
if (sVerbose) Log.v(TAG, "visibility changed for " + id + ": " + isVisible);
if (!isVisible && mFillableIds != null) {
if (mFillableIds.contains(id)) {
if (sDebug) Log.d(TAG, "Hidding UI when view " + id + " became invisible");
requestHideFillUi(id, view);
}
}
if (mTrackedViews != null) {
mTrackedViews.notifyViewVisibilityChangedLocked(id, isVisible);
} else if (sVerbose) {
Log.v(TAG, "Ignoring visibility change on " + id + ": no tracked views");
}
}
}
}
/**
* Called when a virtual view that supports autofill is entered.
*
* <p>The virtual view boundaries must be absolute screen coordinates. For example, if the
* parent, non-virtual view uses {@code bounds} to draw the virtual view inside its Canvas,
* the absolute bounds could be calculated by:
*
* <pre class="prettyprint">
* int offset[] = new int[2];
* getLocationOnScreen(offset);
* Rect absBounds = new Rect(bounds.left + offset[0],
* bounds.top + offset[1],
* bounds.right + offset[0], bounds.bottom + offset[1]);
* </pre>
*
* @param view the virtual view parent.
* @param virtualId id identifying the virtual child inside the parent view.
* @param absBounds absolute boundaries of the virtual view in the screen.
*/
public void notifyViewEntered(@NonNull View view, int virtualId, @NonNull Rect absBounds) {
notifyViewEntered(view, virtualId, absBounds, 0);
}
private void notifyViewEntered(View view, int virtualId, Rect bounds, int flags) {
if (!hasAutofillFeature()) {
return;
}
AutofillCallback callback;
synchronized (mLock) {
callback = notifyViewEnteredLocked(view, virtualId, bounds, flags);
}
if (callback != null) {
callback.onAutofillEvent(view, virtualId,
AutofillCallback.EVENT_INPUT_UNAVAILABLE);
}
}
/** Returns AutofillCallback if need fire EVENT_INPUT_UNAVAILABLE */
@GuardedBy("mLock")
private AutofillCallback notifyViewEnteredLocked(View view, int virtualId, Rect bounds,
int flags) {
final AutofillId id = getAutofillId(view, virtualId);
AutofillCallback callback = null;
if (shouldIgnoreViewEnteredLocked(id, flags)) return callback;
ensureServiceClientAddedIfNeededLocked();
if (!mEnabled) {
if (mCallback != null) {
callback = mCallback;
}
} else {
// don't notify entered when Activity is already in background
if (!isClientDisablingEnterExitEvent()) {
if (!isActiveLocked()) {
// Starts new session.
startSessionLocked(id, bounds, null, flags);
} else {
// Update focus on existing session.
updateSessionLocked(id, bounds, null, ACTION_VIEW_ENTERED, flags);
}
addEnteredIdLocked(id);
}
}
return callback;
}
@GuardedBy("mLock")
private void addEnteredIdLocked(@NonNull AutofillId id) {
if (mEnteredIds == null) {
mEnteredIds = new ArraySet<>(1);
}
mEnteredIds.add(id);
}
/**
* Called when a virtual view that supports autofill is exited.
*
* @param view the virtual view parent.
* @param virtualId id identifying the virtual child inside the parent view.
*/
public void notifyViewExited(@NonNull View view, int virtualId) {
if (sVerbose) Log.v(TAG, "notifyViewExited(" + view.getAutofillId() + ", " + virtualId);
if (!hasAutofillFeature()) {
return;
}
synchronized (mLock) {
notifyViewExitedLocked(view, virtualId);
}
}
@GuardedBy("mLock")
private void notifyViewExitedLocked(@NonNull View view, int virtualId) {
ensureServiceClientAddedIfNeededLocked();
if (mEnabled && isActiveLocked()) {
// don't notify exited when Activity is already in background
if (!isClientDisablingEnterExitEvent()) {
final AutofillId id = getAutofillId(view, virtualId);
// Update focus on existing session.
updateSessionLocked(id, null, null, ACTION_VIEW_EXITED, 0);
}
}
}
/**
* Called to indicate the value of an autofillable {@link View} changed.
*
* @param view view whose value changed.
*/
public void notifyValueChanged(View view) {
if (!hasAutofillFeature()) {
return;
}
AutofillId id = null;
boolean valueWasRead = false;
AutofillValue value = null;
synchronized (mLock) {
// If the session is gone some fields might still be highlighted, hence we have to
// remove the isAutofilled property even if no sessions are active.
if (mLastAutofilledData == null) {
view.setAutofilled(false);
} else {
id = view.getAutofillId();
if (mLastAutofilledData.containsKey(id)) {
value = view.getAutofillValue();
valueWasRead = true;
if (Objects.equals(mLastAutofilledData.get(id), value)) {
view.setAutofilled(true);
} else {
view.setAutofilled(false);
mLastAutofilledData.remove(id);
}
} else {
view.setAutofilled(false);
}
}
if (!mEnabled || !isActiveLocked()) {
if (sVerbose) {
Log.v(TAG, "notifyValueChanged(" + view.getAutofillId()
+ "): ignoring on state " + getStateAsStringLocked());
}
return;
}
if (id == null) {
id = view.getAutofillId();
}
if (!valueWasRead) {
value = view.getAutofillValue();
}
updateSessionLocked(id, null, value, ACTION_VALUE_CHANGED, 0);
}
}
/**
* Called to indicate the value of an autofillable virtual view has changed.
*
* @param view the virtual view parent.
* @param virtualId id identifying the virtual child inside the parent view.
* @param value new value of the child.
*/
public void notifyValueChanged(View view, int virtualId, AutofillValue value) {
if (!hasAutofillFeature()) {
return;
}
synchronized (mLock) {
if (!mEnabled || !isActiveLocked()) {
if (sVerbose) {
Log.v(TAG, "notifyValueChanged(" + view.getAutofillId() + ":" + virtualId
+ "): ignoring on state " + getStateAsStringLocked());
}
return;
}
final AutofillId id = getAutofillId(view, virtualId);
updateSessionLocked(id, null, value, ACTION_VALUE_CHANGED, 0);
}
}
/**
* Called to indicate a {@link View} is clicked.
*
* @param view view that has been clicked.
*/
public void notifyViewClicked(@NonNull View view) {
notifyViewClicked(view.getAutofillId());
}
/**
* Called to indicate a virtual view has been clicked.
*
* @param view the virtual view parent.
* @param virtualId id identifying the virtual child inside the parent view.
*/
public void notifyViewClicked(@NonNull View view, int virtualId) {
notifyViewClicked(getAutofillId(view, virtualId));
}
private void notifyViewClicked(AutofillId id) {
if (!hasAutofillFeature()) {
return;
}
if (sVerbose) Log.v(TAG, "notifyViewClicked(): id=" + id + ", trigger=" + mSaveTriggerId);
synchronized (mLock) {
if (!mEnabled || !isActiveLocked()) {
return;
}
if (mSaveTriggerId != null && mSaveTriggerId.equals(id)) {
if (sDebug) Log.d(TAG, "triggering commit by click of " + id);
commitLocked();
mMetricsLogger.write(newLog(MetricsEvent.AUTOFILL_SAVE_EXPLICITLY_TRIGGERED));
}
}
}
/**
* Called by {@link android.app.Activity} to commit or cancel the session on finish.
*
* @hide
*/
public void onActivityFinishing() {
if (!hasAutofillFeature()) {
return;
}
synchronized (mLock) {
if (mSaveOnFinish) {
if (sDebug) Log.d(TAG, "onActivityFinishing(): calling commitLocked()");
commitLocked();
} else {
if (sDebug) Log.d(TAG, "onActivityFinishing(): calling cancelLocked()");
cancelLocked();
}
}
}
/**
* Called to indicate the current autofill context should be commited.
*
* <p>This method is typically called by {@link View Views} that manage virtual views; for
* example, when the view is rendering an {@code HTML} page with a form and virtual views
* that represent the HTML elements, it should call this method after the form is submitted and
* another page is rendered.
*
* <p><b>Note:</b> This method does not need to be called on regular application lifecycle
* methods such as {@link android.app.Activity#finish()}.
*/
public void commit() {
if (!hasAutofillFeature()) {
return;
}
if (sVerbose) Log.v(TAG, "commit() called by app");
synchronized (mLock) {
commitLocked();
}
}
@GuardedBy("mLock")
private void commitLocked() {
if (!mEnabled && !isActiveLocked()) {
return;
}
finishSessionLocked();
}
/**
* Called to indicate the current autofill context should be cancelled.
*
* <p>This method is typically called by {@link View Views} that manage virtual views; for
* example, when the view is rendering an {@code HTML} page with a form and virtual views
* that represent the HTML elements, it should call this method if the user does not post the
* form but moves to another form in this page.
*
* <p><b>Note:</b> This method does not need to be called on regular application lifecycle
* methods such as {@link android.app.Activity#finish()}.
*/
public void cancel() {
if (sVerbose) Log.v(TAG, "cancel() called by app");
if (!hasAutofillFeature()) {
return;
}
synchronized (mLock) {
cancelLocked();
}
}
@GuardedBy("mLock")
private void cancelLocked() {
if (!mEnabled && !isActiveLocked()) {
return;
}
cancelSessionLocked();
}
/** @hide */
public void disableOwnedAutofillServices() {
disableAutofillServices();
}
/**
* If the app calling this API has enabled autofill services they
* will be disabled.
*/
public void disableAutofillServices() {
if (!hasAutofillFeature()) {
return;
}
try {
mService.disableOwnedAutofillServices(mContext.getUserId());
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
/**
* Returns {@code true} if the calling application provides a {@link AutofillService} that is
* enabled for the current user, or {@code false} otherwise.
*/
public boolean hasEnabledAutofillServices() {
if (mService == null) return false;
try {
return mService.isServiceEnabled(mContext.getUserId(), mContext.getPackageName());
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
/**
* Returns the component name of the {@link AutofillService} that is enabled for the current
* user.
*/
@Nullable
public ComponentName getAutofillServiceComponentName() {
if (mService == null) return null;
try {
return mService.getAutofillServiceComponentName();
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
/**
* Gets the id of the {@link UserData} used for
* <a href="AutofillService.html#FieldClassification">field classification</a>.
*
* <p>This method is useful when the service must check the status of the {@link UserData} in
* the device without fetching the whole object.
*
* <p><b>Note:</b> This method should only be called by an app providing an autofill service,
* and it's ignored if the caller currently doesn't have an enabled autofill service for
* the user.
*
* @return id of the {@link UserData} previously set by {@link #setUserData(UserData)}
* or {@code null} if it was reset or if the caller currently does not have an enabled autofill
* service for the user.
*/
@Nullable public String getUserDataId() {
try {
return mService.getUserDataId();
} catch (RemoteException e) {
e.rethrowFromSystemServer();
return null;
}
}
/**
* Gets the user data used for
* <a href="AutofillService.html#FieldClassification">field classification</a>.
*
* <p><b>Note:</b> This method should only be called by an app providing an autofill service,
* and it's ignored if the caller currently doesn't have an enabled autofill service for
* the user.
*
* @return value previously set by {@link #setUserData(UserData)} or {@code null} if it was
* reset or if the caller currently does not have an enabled autofill service for the user.
*/
@Nullable public UserData getUserData() {
try {
return mService.getUserData();
} catch (RemoteException e) {
e.rethrowFromSystemServer();
return null;
}
}
/**
* Sets the {@link UserData} used for
* <a href="AutofillService.html#FieldClassification">field classification</a>
*
* <p><b>Note:</b> This method should only be called by an app providing an autofill service,
* and it's ignored if the caller currently doesn't have an enabled autofill service for
* the user.
*/
public void setUserData(@Nullable UserData userData) {
try {
mService.setUserData(userData);
} catch (RemoteException e) {
e.rethrowFromSystemServer();
}
}
/**
* Checks if <a href="AutofillService.html#FieldClassification">field classification</a> is
* enabled.
*
* <p>As field classification is an expensive operation, it could be disabled, either
* temporarily (for example, because the service exceeded a rate-limit threshold) or
* permanently (for example, because the device is a low-level device).
*
* <p><b>Note:</b> This method should only be called by an app providing an autofill service,
* and it's ignored if the caller currently doesn't have an enabled autofill service for
* the user.
*/
public boolean isFieldClassificationEnabled() {
try {
return mService.isFieldClassificationEnabled();
} catch (RemoteException e) {
e.rethrowFromSystemServer();
return false;
}
}
/**
* Gets the name of the default algorithm used for
* <a href="AutofillService.html#FieldClassification">field classification</a>.
*
* <p>The default algorithm is used when the algorithm on {@link UserData} is invalid or not
* set.
*
* <p><b>Note:</b> This method should only be called by an app providing an autofill service,
* and it's ignored if the caller currently doesn't have an enabled autofill service for
* the user.
*/
@Nullable
public String getDefaultFieldClassificationAlgorithm() {
try {
return mService.getDefaultFieldClassificationAlgorithm();
} catch (RemoteException e) {
e.rethrowFromSystemServer();
return null;
}
}
/**
* Gets the name of all algorithms currently available for
* <a href="AutofillService.html#FieldClassification">field classification</a>.
*
* <p><b>Note:</b> This method should only be called by an app providing an autofill service,
* and it returns an empty list if the caller currently doesn't have an enabled autofill service
* for the user.
*/
@NonNull
public List<String> getAvailableFieldClassificationAlgorithms() {
final String[] algorithms;
try {
algorithms = mService.getAvailableFieldClassificationAlgorithms();
return algorithms != null ? Arrays.asList(algorithms) : Collections.emptyList();
} catch (RemoteException e) {
e.rethrowFromSystemServer();
return null;
}
}
/**
* Returns {@code true} if autofill is supported by the current device and
* is supported for this user.
*
* <p>Autofill is typically supported, but it could be unsupported in cases like:
* <ol>
* <li>Low-end devices.
* <li>Device policy rules that forbid its usage.
* </ol>
*/
public boolean isAutofillSupported() {
if (mService == null) return false;
try {
return mService.isServiceSupported(mContext.getUserId());
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
// Note: don't need to use locked suffix because mContext is final.
private AutofillClient getClient() {
final AutofillClient client = mContext.getAutofillClient();
if (client == null && sDebug) {
Log.d(TAG, "No AutofillClient for " + mContext.getPackageName() + " on context "
+ mContext);
}
return client;
}
/**
* Check if autofill ui is showing, must be called on UI thread.
* @hide
*/
public boolean isAutofillUiShowing() {
final AutofillClient client = mContext.getAutofillClient();
return client != null && client.autofillClientIsFillUiShowing();
}
/** @hide */
public void onAuthenticationResult(int authenticationId, Intent data, View focusView) {
if (!hasAutofillFeature()) {
return;
}
// TODO: the result code is being ignored, so this method is not reliably
// handling the cases where it's not RESULT_OK: it works fine if the service does not
// set the EXTRA_AUTHENTICATION_RESULT extra, but it could cause weird results if the
// service set the extra and returned RESULT_CANCELED...
if (sDebug) Log.d(TAG, "onAuthenticationResult(): d=" + data);
synchronized (mLock) {
if (!isActiveLocked()) {
return;
}
// If authenticate activity closes itself during onCreate(), there is no onStop/onStart
// of app activity. We enforce enter event to re-show fill ui in such case.
// CTS example:
// LoginActivityTest#testDatasetAuthTwoFieldsUserCancelsFirstAttempt
// LoginActivityTest#testFillResponseAuthBothFieldsUserCancelsFirstAttempt
if (!mOnInvisibleCalled && focusView != null
&& focusView.canNotifyAutofillEnterExitEvent()) {
notifyViewExitedLocked(focusView);
notifyViewEnteredLocked(focusView, 0);
}
if (data == null) {
// data is set to null when result is not RESULT_OK
return;
}
final Parcelable result = data.getParcelableExtra(EXTRA_AUTHENTICATION_RESULT);
final Bundle responseData = new Bundle();
responseData.putParcelable(EXTRA_AUTHENTICATION_RESULT, result);
final Bundle newClientState = data.getBundleExtra(EXTRA_CLIENT_STATE);
if (newClientState != null) {
responseData.putBundle(EXTRA_CLIENT_STATE, newClientState);
}
try {
mService.setAuthenticationResult(responseData, mSessionId, authenticationId,
mContext.getUserId());
} catch (RemoteException e) {
Log.e(TAG, "Error delivering authentication result", e);
}
}
}
/**
* Gets the next unique autofill ID for the activity context.
*
* <p>Typically used to manage views whose content is recycled - see
* {@link View#setAutofillId(AutofillId)} for more info.
*
* @return An ID that is unique in the activity, or {@code null} if autofill is not supported in
* the {@link Context} associated with this {@link AutofillManager}.
*/
@Nullable
public AutofillId getNextAutofillId() {
final AutofillClient client = getClient();
if (client == null) return null;
final AutofillId id = client.autofillClientGetNextAutofillId();
if (id == null && sDebug) {
Log.d(TAG, "getNextAutofillId(): client " + client + " returned null");
}
return id;
}
private static AutofillId getAutofillId(View parent, int virtualId) {
return new AutofillId(parent.getAutofillViewId(), virtualId);
}
@GuardedBy("mLock")
private void startSessionLocked(@NonNull AutofillId id, @NonNull Rect bounds,
@NonNull AutofillValue value, int flags) {
if (sVerbose) {
Log.v(TAG, "startSessionLocked(): id=" + id + ", bounds=" + bounds + ", value=" + value
+ ", flags=" + flags + ", state=" + getStateAsStringLocked()
+ ", compatMode=" + isCompatibilityModeEnabledLocked()
+ ", enteredIds=" + mEnteredIds);
}
if (mState != STATE_UNKNOWN && !isFinishedLocked() && (flags & FLAG_MANUAL_REQUEST) == 0) {
if (sVerbose) {
Log.v(TAG, "not automatically starting session for " + id
+ " on state " + getStateAsStringLocked() + " and flags " + flags);
}
return;
}
try {
final AutofillClient client = getClient();
if (client == null) return; // NOTE: getClient() already logged it..
mSessionId = mService.startSession(client.autofillClientGetActivityToken(),
mServiceClient.asBinder(), id, bounds, value, mContext.getUserId(),
mCallback != null, flags, client.autofillClientGetComponentName(),
isCompatibilityModeEnabledLocked());
if (mSessionId != NO_SESSION) {
mState = STATE_ACTIVE;
}
client.autofillClientResetableStateAvailable();
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
@GuardedBy("mLock")
private void finishSessionLocked() {
if (sVerbose) Log.v(TAG, "finishSessionLocked(): " + getStateAsStringLocked());
if (!isActiveLocked()) return;
try {
mService.finishSession(mSessionId, mContext.getUserId());
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
resetSessionLocked(/* resetEnteredIds= */ true);
}
@GuardedBy("mLock")
private void cancelSessionLocked() {
if (sVerbose) Log.v(TAG, "cancelSessionLocked(): " + getStateAsStringLocked());
if (!isActiveLocked()) return;
try {
mService.cancelSession(mSessionId, mContext.getUserId());
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
resetSessionLocked(/* resetEnteredIds= */ true);
}
@GuardedBy("mLock")
private void resetSessionLocked(boolean resetEnteredIds) {
mSessionId = NO_SESSION;
mState = STATE_UNKNOWN;
mTrackedViews = null;
mFillableIds = null;
mSaveTriggerId = null;
mIdShownFillUi = null;
if (resetEnteredIds) {
mEnteredIds = null;
}
}
@GuardedBy("mLock")
private void updateSessionLocked(AutofillId id, Rect bounds, AutofillValue value, int action,
int flags) {
if (sVerbose) {
Log.v(TAG, "updateSessionLocked(): id=" + id + ", bounds=" + bounds
+ ", value=" + value + ", action=" + action + ", flags=" + flags);
}
boolean restartIfNecessary = (flags & FLAG_MANUAL_REQUEST) != 0;
try {
if (restartIfNecessary) {
final AutofillClient client = getClient();
if (client == null) return; // NOTE: getClient() already logd it..
final int newId = mService.updateOrRestartSession(
client.autofillClientGetActivityToken(),
mServiceClient.asBinder(), id, bounds, value, mContext.getUserId(),
mCallback != null, flags, client.autofillClientGetComponentName(),
mSessionId, action, isCompatibilityModeEnabledLocked());
if (newId != mSessionId) {
if (sDebug) Log.d(TAG, "Session restarted: " + mSessionId + "=>" + newId);
mSessionId = newId;
mState = (mSessionId == NO_SESSION) ? STATE_UNKNOWN : STATE_ACTIVE;
client.autofillClientResetableStateAvailable();
}
} else {
mService.updateSession(mSessionId, id, bounds, value, action, flags,
mContext.getUserId());
}
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
@GuardedBy("mLock")
private void ensureServiceClientAddedIfNeededLocked() {
if (getClient() == null) {
return;
}
if (mServiceClient == null) {
mServiceClient = new AutofillManagerClient(this);
try {
final int userId = mContext.getUserId();
final int flags = mService.addClient(mServiceClient, userId);
mEnabled = (flags & FLAG_ADD_CLIENT_ENABLED) != 0;
sDebug = (flags & FLAG_ADD_CLIENT_DEBUG) != 0;
sVerbose = (flags & FLAG_ADD_CLIENT_VERBOSE) != 0;
final IAutoFillManager service = mService;
final IAutoFillManagerClient serviceClient = mServiceClient;
mServiceClientCleaner = Cleaner.create(this, () -> {
try {
service.removeClient(serviceClient, userId);
} catch (RemoteException e) {
}
});
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
}
/**
* Registers a {@link AutofillCallback} to receive autofill events.
*
* @param callback callback to receive events.
*/
public void registerCallback(@Nullable AutofillCallback callback) {
if (!hasAutofillFeature()) {
return;
}
synchronized (mLock) {
if (callback == null) return;
final boolean hadCallback = mCallback != null;
mCallback = callback;
if (!hadCallback) {
try {
mService.setHasCallback(mSessionId, mContext.getUserId(), true);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
}
}
/**
* Unregisters a {@link AutofillCallback} to receive autofill events.
*
* @param callback callback to stop receiving events.
*/
public void unregisterCallback(@Nullable AutofillCallback callback) {
if (!hasAutofillFeature()) {
return;
}
synchronized (mLock) {
if (callback == null || mCallback == null || callback != mCallback) return;
mCallback = null;
try {
mService.setHasCallback(mSessionId, mContext.getUserId(), false);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
}
private void requestShowFillUi(int sessionId, AutofillId id, int width, int height,
Rect anchorBounds, IAutofillWindowPresenter presenter) {
final View anchor = findView(id);
if (anchor == null) {
return;
}
AutofillCallback callback = null;
synchronized (mLock) {
if (mSessionId == sessionId) {
AutofillClient client = getClient();
if (client != null) {
if (client.autofillClientRequestShowFillUi(anchor, width, height,
anchorBounds, presenter)) {
callback = mCallback;
mIdShownFillUi = id;
}
}
}
}
if (callback != null) {
if (id.isVirtual()) {
callback.onAutofillEvent(anchor, id.getVirtualChildId(),
AutofillCallback.EVENT_INPUT_SHOWN);
} else {
callback.onAutofillEvent(anchor, AutofillCallback.EVENT_INPUT_SHOWN);
}
}
}
private void authenticate(int sessionId, int authenticationId, IntentSender intent,
Intent fillInIntent) {
synchronized (mLock) {
if (sessionId == mSessionId) {
final AutofillClient client = getClient();
if (client != null) {
// clear mOnInvisibleCalled and we will see if receive onInvisibleForAutofill()
// before onAuthenticationResult()
mOnInvisibleCalled = false;
client.autofillClientAuthenticate(authenticationId, intent, fillInIntent);
}
}
}
}
private void dispatchUnhandledKey(int sessionId, AutofillId id, KeyEvent keyEvent) {
final View anchor = findView(id);
if (anchor == null) {
return;
}
AutofillCallback callback = null;
synchronized (mLock) {
if (mSessionId == sessionId) {
AutofillClient client = getClient();
if (client != null) {
client.autofillClientDispatchUnhandledKey(anchor, keyEvent);
}
}
}
}
/** @hide */
public static final int SET_STATE_FLAG_ENABLED = 0x01;
/** @hide */
public static final int SET_STATE_FLAG_RESET_SESSION = 0x02;
/** @hide */
public static final int SET_STATE_FLAG_RESET_CLIENT = 0x04;
/** @hide */
public static final int SET_STATE_FLAG_DEBUG = 0x08;
/** @hide */
public static final int SET_STATE_FLAG_VERBOSE = 0x10;
private void setState(int flags) {
if (sVerbose) Log.v(TAG, "setState(" + flags + ")");
synchronized (mLock) {
mEnabled = (flags & SET_STATE_FLAG_ENABLED) != 0;
if (!mEnabled || (flags & SET_STATE_FLAG_RESET_SESSION) != 0) {
// Reset the session state
resetSessionLocked(/* resetEnteredIds= */ true);
}
if ((flags & SET_STATE_FLAG_RESET_CLIENT) != 0) {
// Reset connection to system
mServiceClient = null;
if (mServiceClientCleaner != null) {
mServiceClientCleaner.clean();
mServiceClientCleaner = null;
}
}
}
sDebug = (flags & SET_STATE_FLAG_DEBUG) != 0;
sVerbose = (flags & SET_STATE_FLAG_VERBOSE) != 0;
}
/**
* Sets a view as autofilled if the current value is the {code targetValue}.
*
* @param view The view that is to be autofilled
* @param targetValue The value we want to fill into view
*/
private void setAutofilledIfValuesIs(@NonNull View view, @Nullable AutofillValue targetValue) {
AutofillValue currentValue = view.getAutofillValue();
if (Objects.equals(currentValue, targetValue)) {
synchronized (mLock) {
if (mLastAutofilledData == null) {
mLastAutofilledData = new ParcelableMap(1);
}
mLastAutofilledData.put(view.getAutofillId(), targetValue);
}
view.setAutofilled(true);
}
}
private void autofill(int sessionId, List<AutofillId> ids, List<AutofillValue> values) {
synchronized (mLock) {
if (sessionId != mSessionId) {
return;
}
final AutofillClient client = getClient();
if (client == null) {
return;
}
final int itemCount = ids.size();
int numApplied = 0;
ArrayMap<View, SparseArray<AutofillValue>> virtualValues = null;
final View[] views = client.autofillClientFindViewsByAutofillIdTraversal(
Helper.toArray(ids));
ArrayList<AutofillId> failedIds = null;
for (int i = 0; i < itemCount; i++) {
final AutofillId id = ids.get(i);
final AutofillValue value = values.get(i);
final int viewId = id.getViewId();
final View view = views[i];
if (view == null) {
// Most likely view has been removed after the initial request was sent to the
// the service; this is fine, but we need to update the view status in the
// server side so it can be triggered again.
Log.d(TAG, "autofill(): no View with id " + id);
if (failedIds == null) {
failedIds = new ArrayList<>();
}
failedIds.add(id);
continue;
}
if (id.isVirtual()) {
if (virtualValues == null) {
// Most likely there will be just one view with virtual children.
virtualValues = new ArrayMap<>(1);
}
SparseArray<AutofillValue> valuesByParent = virtualValues.get(view);
if (valuesByParent == null) {
// We don't know the size yet, but usually it will be just a few fields...
valuesByParent = new SparseArray<>(5);
virtualValues.put(view, valuesByParent);
}
valuesByParent.put(id.getVirtualChildId(), value);
} else {
// Mark the view as to be autofilled with 'value'
if (mLastAutofilledData == null) {
mLastAutofilledData = new ParcelableMap(itemCount - i);
}
mLastAutofilledData.put(id, value);
view.autofill(value);
// Set as autofilled if the values match now, e.g. when the value was updated
// synchronously.
// If autofill happens async, the view is set to autofilled in
// notifyValueChanged.
setAutofilledIfValuesIs(view, value);
numApplied++;
}
}
if (failedIds != null) {
if (sVerbose) {
Log.v(TAG, "autofill(): total failed views: " + failedIds);
}
try {
mService.setAutofillFailure(mSessionId, failedIds, mContext.getUserId());
} catch (RemoteException e) {
// In theory, we could ignore this error since it's not a big deal, but
// in reality, we rather crash the app anyways, as the failure could be
// a consequence of something going wrong on the server side...
e.rethrowFromSystemServer();
}
}
if (virtualValues != null) {
for (int i = 0; i < virtualValues.size(); i++) {
final View parent = virtualValues.keyAt(i);
final SparseArray<AutofillValue> childrenValues = virtualValues.valueAt(i);
parent.autofill(childrenValues);
numApplied += childrenValues.size();
// TODO: we should provide a callback so the parent can call failures; something
// like notifyAutofillFailed(View view, int[] childrenIds);
}
}
mMetricsLogger.write(newLog(MetricsEvent.AUTOFILL_DATASET_APPLIED)
.addTaggedData(MetricsEvent.FIELD_AUTOFILL_NUM_VALUES, itemCount)
.addTaggedData(MetricsEvent.FIELD_AUTOFILL_NUM_VIEWS_FILLED, numApplied));
}
}
private LogMaker newLog(int category) {
final LogMaker log = new LogMaker(category)
.addTaggedData(MetricsEvent.FIELD_AUTOFILL_SESSION_ID, mSessionId);
if (isCompatibilityModeEnabledLocked()) {
log.addTaggedData(MetricsEvent.FIELD_AUTOFILL_COMPAT_MODE, 1);
}
final AutofillClient client = getClient();
if (client == null) {
// Client should never be null here, but it doesn't hurt to check...
log.setPackageName(mContext.getPackageName());
} else {
log.setComponentName(client.autofillClientGetComponentName());
}
return log;
}
/**
* Set the tracked views.
*
* @param trackedIds The views to be tracked.
* @param saveOnAllViewsInvisible Finish the session once all tracked views are invisible.
* @param saveOnFinish Finish the session once the activity is finished.
* @param fillableIds Views that might anchor FillUI.
* @param saveTriggerId View that when clicked triggers commit().
*/
private void setTrackedViews(int sessionId, @Nullable AutofillId[] trackedIds,
boolean saveOnAllViewsInvisible, boolean saveOnFinish,
@Nullable AutofillId[] fillableIds, @Nullable AutofillId saveTriggerId) {
synchronized (mLock) {
if (mEnabled && mSessionId == sessionId) {
if (saveOnAllViewsInvisible) {
mTrackedViews = new TrackedViews(trackedIds);
} else {
mTrackedViews = null;
}
mSaveOnFinish = saveOnFinish;
if (fillableIds != null) {
if (mFillableIds == null) {
mFillableIds = new ArraySet<>(fillableIds.length);
}
for (AutofillId id : fillableIds) {
mFillableIds.add(id);
}
if (sVerbose) {
Log.v(TAG, "setTrackedViews(): fillableIds=" + fillableIds
+ ", mFillableIds" + mFillableIds);
}
}
if (mSaveTriggerId != null && !mSaveTriggerId.equals(saveTriggerId)) {
// Turn off trigger on previous view id.
setNotifyOnClickLocked(mSaveTriggerId, false);
}
if (saveTriggerId != null && !saveTriggerId.equals(mSaveTriggerId)) {
// Turn on trigger on new view id.
mSaveTriggerId = saveTriggerId;
setNotifyOnClickLocked(mSaveTriggerId, true);
}
}
}
}
private void setNotifyOnClickLocked(@NonNull AutofillId id, boolean notify) {
final View view = findView(id);
if (view == null) {
Log.w(TAG, "setNotifyOnClick(): invalid id: " + id);
return;
}
view.setNotifyAutofillManagerOnClick(notify);
}
private void setSaveUiState(int sessionId, boolean shown) {
if (sDebug) Log.d(TAG, "setSaveUiState(" + sessionId + "): " + shown);
synchronized (mLock) {
if (mSessionId != NO_SESSION) {
// Race condition: app triggered a new session after the previous session was
// finished but before server called setSaveUiState() - need to cancel the new
// session to avoid further inconsistent behavior.
Log.w(TAG, "setSaveUiState(" + sessionId + ", " + shown
+ ") called on existing session " + mSessionId + "; cancelling it");
cancelSessionLocked();
}
if (shown) {
mSessionId = sessionId;
mState = STATE_SHOWING_SAVE_UI;
} else {
mSessionId = NO_SESSION;
mState = STATE_UNKNOWN;
}
}
}
/**
* Marks the state of the session as finished.
*
* @param newState {@link #STATE_FINISHED} (because the autofill service returned a {@code null}
* FillResponse), {@link #STATE_UNKNOWN} (because the session was removed),
* {@link #STATE_UNKNOWN_COMPAT_MODE} (beucase the session was finished when the URL bar
* changed on compat mode), or {@link #STATE_DISABLED_BY_SERVICE} (because the autofill service
* disabled further autofill requests for the activity).
*/
private void setSessionFinished(int newState) {
synchronized (mLock) {
if (sVerbose) {
Log.v(TAG, "setSessionFinished(): from " + getStateAsStringLocked() + " to "
+ getStateAsString(newState));
}
if (newState == STATE_UNKNOWN_COMPAT_MODE) {
resetSessionLocked(/* resetEnteredIds= */ true);
mState = STATE_UNKNOWN;
} else {
resetSessionLocked(/* resetEnteredIds= */ false);
mState = newState;
}
}
}
/** @hide */
public void requestHideFillUi() {
requestHideFillUi(mIdShownFillUi, true);
}
private void requestHideFillUi(AutofillId id, boolean force) {
final View anchor = id == null ? null : findView(id);
if (sVerbose) Log.v(TAG, "requestHideFillUi(" + id + "): anchor = " + anchor);
if (anchor == null) {
if (force) {
// When user taps outside autofill window, force to close fill ui even id does
// not match.
AutofillClient client = getClient();
if (client != null) {
client.autofillClientRequestHideFillUi();
}
}
return;
}
requestHideFillUi(id, anchor);
}
private void requestHideFillUi(AutofillId id, View anchor) {
AutofillCallback callback = null;
synchronized (mLock) {
// We do not check the session id for two reasons:
// 1. If local and remote session id are off sync the UI would be stuck shown
// 2. There is a race between the user state being destroyed due the fill
// service being uninstalled and the UI being dismissed.
AutofillClient client = getClient();
if (client != null) {
if (client.autofillClientRequestHideFillUi()) {
mIdShownFillUi = null;
callback = mCallback;
}
}
}
if (callback != null) {
if (id.isVirtual()) {
callback.onAutofillEvent(anchor, id.getVirtualChildId(),
AutofillCallback.EVENT_INPUT_HIDDEN);
} else {
callback.onAutofillEvent(anchor, AutofillCallback.EVENT_INPUT_HIDDEN);
}
}
}
private void notifyNoFillUi(int sessionId, AutofillId id, int sessionFinishedState) {
if (sVerbose) {
Log.v(TAG, "notifyNoFillUi(): sessionId=" + sessionId + ", autofillId=" + id
+ ", sessionFinishedState=" + sessionFinishedState);
}
final View anchor = findView(id);
if (anchor == null) {
return;
}
AutofillCallback callback = null;
synchronized (mLock) {
if (mSessionId == sessionId && getClient() != null) {
callback = mCallback;
}
}
if (callback != null) {
if (id.isVirtual()) {
callback.onAutofillEvent(anchor, id.getVirtualChildId(),
AutofillCallback.EVENT_INPUT_UNAVAILABLE);
} else {
callback.onAutofillEvent(anchor, AutofillCallback.EVENT_INPUT_UNAVAILABLE);
}
}
if (sessionFinishedState != 0) {
// Callback call was "hijacked" to also update the session state.
setSessionFinished(sessionFinishedState);
}
}
/**
* Find a single view by its id.
*
* @param autofillId The autofill id of the view
*
* @return The view or {@code null} if view was not found
*/
private View findView(@NonNull AutofillId autofillId) {
final AutofillClient client = getClient();
if (client != null) {
return client.autofillClientFindViewByAutofillIdTraversal(autofillId);
}
return null;
}
/** @hide */
public boolean hasAutofillFeature() {
return mService != null;
}
/** @hide */
public void onPendingSaveUi(int operation, IBinder token) {
if (sVerbose) Log.v(TAG, "onPendingSaveUi(" + operation + "): " + token);
synchronized (mLock) {
try {
mService.onPendingSaveUi(operation, token);
} catch (RemoteException e) {
e.rethrowFromSystemServer();
}
}
}
/** @hide */
public void dump(String outerPrefix, PrintWriter pw) {
pw.print(outerPrefix); pw.println("AutofillManager:");
final String pfx = outerPrefix + " ";
pw.print(pfx); pw.print("sessionId: "); pw.println(mSessionId);
pw.print(pfx); pw.print("state: "); pw.println(getStateAsStringLocked());
pw.print(pfx); pw.print("context: "); pw.println(mContext);
pw.print(pfx); pw.print("client: "); pw.println(getClient());
pw.print(pfx); pw.print("enabled: "); pw.println(mEnabled);
pw.print(pfx); pw.print("hasService: "); pw.println(mService != null);
pw.print(pfx); pw.print("hasCallback: "); pw.println(mCallback != null);
pw.print(pfx); pw.print("onInvisibleCalled "); pw.println(mOnInvisibleCalled);
pw.print(pfx); pw.print("last autofilled data: "); pw.println(mLastAutofilledData);
pw.print(pfx); pw.print("tracked views: ");
if (mTrackedViews == null) {
pw.println("null");
} else {
final String pfx2 = pfx + " ";
pw.println();
pw.print(pfx2); pw.print("visible:"); pw.println(mTrackedViews.mVisibleTrackedIds);
pw.print(pfx2); pw.print("invisible:"); pw.println(mTrackedViews.mInvisibleTrackedIds);
}
pw.print(pfx); pw.print("fillable ids: "); pw.println(mFillableIds);
pw.print(pfx); pw.print("entered ids: "); pw.println(mEnteredIds);
pw.print(pfx); pw.print("save trigger id: "); pw.println(mSaveTriggerId);
pw.print(pfx); pw.print("save on finish(): "); pw.println(mSaveOnFinish);
pw.print(pfx); pw.print("compat mode enabled: "); pw.println(
isCompatibilityModeEnabledLocked());
pw.print(pfx); pw.print("debug: "); pw.print(sDebug);
pw.print(" verbose: "); pw.println(sVerbose);
}
@GuardedBy("mLock")
private String getStateAsStringLocked() {
return getStateAsString(mState);
}
@NonNull
private static String getStateAsString(int state) {
switch (state) {
case STATE_UNKNOWN:
return "UNKNOWN";
case STATE_ACTIVE:
return "ACTIVE";
case STATE_FINISHED:
return "FINISHED";
case STATE_SHOWING_SAVE_UI:
return "SHOWING_SAVE_UI";
case STATE_DISABLED_BY_SERVICE:
return "DISABLED_BY_SERVICE";
case STATE_UNKNOWN_COMPAT_MODE:
return "UNKNOWN_COMPAT_MODE";
default:
return "INVALID:" + state;
}
}
@GuardedBy("mLock")
private boolean isActiveLocked() {
return mState == STATE_ACTIVE;
}
@GuardedBy("mLock")
private boolean isDisabledByServiceLocked() {
return mState == STATE_DISABLED_BY_SERVICE;
}
@GuardedBy("mLock")
private boolean isFinishedLocked() {
return mState == STATE_FINISHED;
}
private void post(Runnable runnable) {
final AutofillClient client = getClient();
if (client == null) {
if (sVerbose) Log.v(TAG, "ignoring post() because client is null");
return;
}
client.autofillClientRunOnUiThread(runnable);
}
/**
* Implementation of the accessibility based compatibility.
*/
private final class CompatibilityBridge implements AccessibilityManager.AccessibilityPolicy {
@GuardedBy("mLock")
private final Rect mFocusedBounds = new Rect();
@GuardedBy("mLock")
private final Rect mTempBounds = new Rect();
@GuardedBy("mLock")
private int mFocusedWindowId = AccessibilityWindowInfo.UNDEFINED_WINDOW_ID;
@GuardedBy("mLock")
private long mFocusedNodeId = AccessibilityNodeInfo.UNDEFINED_NODE_ID;
// Need to report a fake service in case a11y clients check the service list
@NonNull
@GuardedBy("mLock")
AccessibilityServiceInfo mCompatServiceInfo;
CompatibilityBridge() {
final AccessibilityManager am = AccessibilityManager.getInstance(mContext);
am.setAccessibilityPolicy(this);
}
private AccessibilityServiceInfo getCompatServiceInfo() {
synchronized (mLock) {
if (mCompatServiceInfo != null) {
return mCompatServiceInfo;
}
final Intent intent = new Intent();
intent.setComponent(new ComponentName("android",
"com.android.server.autofill.AutofillCompatAccessibilityService"));
final ResolveInfo resolveInfo = mContext.getPackageManager().resolveService(
intent, PackageManager.MATCH_SYSTEM_ONLY | PackageManager.GET_META_DATA);
try {
mCompatServiceInfo = new AccessibilityServiceInfo(resolveInfo, mContext);
} catch (XmlPullParserException | IOException e) {
Log.e(TAG, "Cannot find compat autofill service:" + intent);
throw new IllegalStateException("Cannot find compat autofill service");
}
return mCompatServiceInfo;
}
}
@Override
public boolean isEnabled(boolean accessibilityEnabled) {
return true;
}
@Override
public int getRelevantEventTypes(int relevantEventTypes) {
return relevantEventTypes | AccessibilityEvent.TYPE_VIEW_FOCUSED
| AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED
| AccessibilityEvent.TYPE_VIEW_CLICKED
| AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED;
}
@Override
public List<AccessibilityServiceInfo> getInstalledAccessibilityServiceList(
List<AccessibilityServiceInfo> installedServices) {
if (installedServices == null) {
installedServices = new ArrayList<>();
}
installedServices.add(getCompatServiceInfo());
return installedServices;
}
@Override
public List<AccessibilityServiceInfo> getEnabledAccessibilityServiceList(
int feedbackTypeFlags, List<AccessibilityServiceInfo> enabledService) {
if (enabledService == null) {
enabledService = new ArrayList<>();
}
enabledService.add(getCompatServiceInfo());
return enabledService;
}
@Override
public AccessibilityEvent onAccessibilityEvent(AccessibilityEvent event,
boolean accessibilityEnabled, int relevantEventTypes) {
switch (event.getEventType()) {
case AccessibilityEvent.TYPE_VIEW_FOCUSED: {
synchronized (mLock) {
if (mFocusedWindowId == event.getWindowId()
&& mFocusedNodeId == event.getSourceNodeId()) {
return event;
}
if (mFocusedWindowId != AccessibilityWindowInfo.UNDEFINED_WINDOW_ID
&& mFocusedNodeId != AccessibilityNodeInfo.UNDEFINED_NODE_ID) {
notifyViewExited(mFocusedWindowId, mFocusedNodeId);
mFocusedWindowId = AccessibilityWindowInfo.UNDEFINED_WINDOW_ID;
mFocusedNodeId = AccessibilityNodeInfo.UNDEFINED_NODE_ID;
mFocusedBounds.set(0, 0, 0, 0);
}
final int windowId = event.getWindowId();
final long nodeId = event.getSourceNodeId();
if (notifyViewEntered(windowId, nodeId, mFocusedBounds)) {
mFocusedWindowId = windowId;
mFocusedNodeId = nodeId;
}
}
} break;
case AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED: {
synchronized (mLock) {
if (mFocusedWindowId == event.getWindowId()
&& mFocusedNodeId == event.getSourceNodeId()) {
notifyValueChanged(event.getWindowId(), event.getSourceNodeId());
}
}
} break;
case AccessibilityEvent.TYPE_VIEW_CLICKED: {
synchronized (mLock) {
notifyViewClicked(event.getWindowId(), event.getSourceNodeId());
}
} break;
case AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED: {
final AutofillClient client = getClient();
if (client != null) {
synchronized (mLock) {
if (client.autofillClientIsFillUiShowing()) {
notifyViewEntered(mFocusedWindowId, mFocusedNodeId, mFocusedBounds);
}
updateTrackedViewsLocked();
}
}
} break;
}
return accessibilityEnabled ? event : null;
}
private boolean notifyViewEntered(int windowId, long nodeId, Rect focusedBounds) {
final int virtualId = AccessibilityNodeInfo.getVirtualDescendantId(nodeId);
if (!isVirtualNode(virtualId)) {
return false;
}
final View view = findViewByAccessibilityId(windowId, nodeId);
if (view == null) {
return false;
}
final AccessibilityNodeInfo node = findVirtualNodeByAccessibilityId(view, virtualId);
if (node == null) {
return false;
}
if (!node.isEditable()) {
return false;
}
final Rect newBounds = mTempBounds;
node.getBoundsInScreen(newBounds);
if (newBounds.equals(focusedBounds)) {
return false;
}
focusedBounds.set(newBounds);
AutofillManager.this.notifyViewEntered(view, virtualId, newBounds);
return true;
}
private void notifyViewExited(int windowId, long nodeId) {
final int virtualId = AccessibilityNodeInfo.getVirtualDescendantId(nodeId);
if (!isVirtualNode(virtualId)) {
return;
}
final View view = findViewByAccessibilityId(windowId, nodeId);
if (view == null) {
return;
}
AutofillManager.this.notifyViewExited(view, virtualId);
}
private void notifyValueChanged(int windowId, long nodeId) {
final int virtualId = AccessibilityNodeInfo.getVirtualDescendantId(nodeId);
if (!isVirtualNode(virtualId)) {
return;
}
final View view = findViewByAccessibilityId(windowId, nodeId);
if (view == null) {
return;
}
final AccessibilityNodeInfo node = findVirtualNodeByAccessibilityId(view, virtualId);
if (node == null) {
return;
}
AutofillManager.this.notifyValueChanged(view, virtualId,
AutofillValue.forText(node.getText()));
}
private void notifyViewClicked(int windowId, long nodeId) {
final int virtualId = AccessibilityNodeInfo.getVirtualDescendantId(nodeId);
if (!isVirtualNode(virtualId)) {
return;
}
final View view = findViewByAccessibilityId(windowId, nodeId);
if (view == null) {
return;
}
final AccessibilityNodeInfo node = findVirtualNodeByAccessibilityId(view, virtualId);
if (node == null) {
return;
}
AutofillManager.this.notifyViewClicked(view, virtualId);
}
@GuardedBy("mLock")
private void updateTrackedViewsLocked() {
if (mTrackedViews != null) {
mTrackedViews.onVisibleForAutofillChangedLocked();
}
}
private View findViewByAccessibilityId(int windowId, long nodeId) {
final AutofillClient client = getClient();
if (client == null) {
return null;
}
final int viewId = AccessibilityNodeInfo.getAccessibilityViewId(nodeId);
return client.autofillClientFindViewByAccessibilityIdTraversal(viewId, windowId);
}
private AccessibilityNodeInfo findVirtualNodeByAccessibilityId(View view, int virtualId) {
final AccessibilityNodeProvider provider = view.getAccessibilityNodeProvider();
if (provider == null) {
return null;
}
return provider.createAccessibilityNodeInfo(virtualId);
}
private boolean isVirtualNode(int nodeId) {
return nodeId != AccessibilityNodeProvider.HOST_VIEW_ID
&& nodeId != AccessibilityNodeInfo.UNDEFINED_ITEM_ID;
}
}
/**
* View tracking information. Once all tracked views become invisible the session is finished.
*/
private class TrackedViews {
/** Visible tracked views */
@Nullable private ArraySet<AutofillId> mVisibleTrackedIds;
/** Invisible tracked views */
@Nullable private ArraySet<AutofillId> mInvisibleTrackedIds;
/**
* Check if set is null or value is in set.
*
* @param set The set or null (== empty set)
* @param value The value that might be in the set
*
* @return {@code true} iff set is not empty and value is in set
*/
// TODO: move to Helper as static method
private <T> boolean isInSet(@Nullable ArraySet<T> set, T value) {
return set != null && set.contains(value);
}
/**
* Add a value to a set. If set is null, create a new set.
*
* @param set The set or null (== empty set)
* @param valueToAdd The value to add
*
* @return The set including the new value. If set was {@code null}, a set containing only
* the new value.
*/
// TODO: move to Helper as static method
@NonNull
private <T> ArraySet<T> addToSet(@Nullable ArraySet<T> set, T valueToAdd) {
if (set == null) {
set = new ArraySet<>(1);
}
set.add(valueToAdd);
return set;
}
/**
* Remove a value from a set.
*
* @param set The set or null (== empty set)
* @param valueToRemove The value to remove
*
* @return The set without the removed value. {@code null} if set was null, or is empty
* after removal.
*/
// TODO: move to Helper as static method
@Nullable
private <T> ArraySet<T> removeFromSet(@Nullable ArraySet<T> set, T valueToRemove) {
if (set == null) {
return null;
}
set.remove(valueToRemove);
if (set.isEmpty()) {
return null;
}
return set;
}
/**
* Set the tracked views.
*
* @param trackedIds The views to be tracked
*/
TrackedViews(@Nullable AutofillId[] trackedIds) {
final AutofillClient client = getClient();
if (!ArrayUtils.isEmpty(trackedIds) && client != null) {
final boolean[] isVisible;
if (client.autofillClientIsVisibleForAutofill()) {
if (sVerbose) Log.v(TAG, "client is visible, check tracked ids");
isVisible = client.autofillClientGetViewVisibility(trackedIds);
} else {
// All false
isVisible = new boolean[trackedIds.length];
}
final int numIds = trackedIds.length;
for (int i = 0; i < numIds; i++) {
final AutofillId id = trackedIds[i];
if (isVisible[i]) {
mVisibleTrackedIds = addToSet(mVisibleTrackedIds, id);
} else {
mInvisibleTrackedIds = addToSet(mInvisibleTrackedIds, id);
}
}
}
if (sVerbose) {
Log.v(TAG, "TrackedViews(trackedIds=" + Arrays.toString(trackedIds) + "): "
+ " mVisibleTrackedIds=" + mVisibleTrackedIds
+ " mInvisibleTrackedIds=" + mInvisibleTrackedIds);
}
if (mVisibleTrackedIds == null) {
finishSessionLocked();
}
}
/**
* Called when a {@link View view's} visibility changes.
*
* @param id the id of the view/virtual view whose visibility changed.
* @param isVisible visible if the view is visible in the view hierarchy.
*/
@GuardedBy("mLock")
void notifyViewVisibilityChangedLocked(@NonNull AutofillId id, boolean isVisible) {
if (sDebug) {
Log.d(TAG, "notifyViewVisibilityChangedLocked(): id=" + id + " isVisible="
+ isVisible);
}
if (isClientVisibleForAutofillLocked()) {
if (isVisible) {
if (isInSet(mInvisibleTrackedIds, id)) {
mInvisibleTrackedIds = removeFromSet(mInvisibleTrackedIds, id);
mVisibleTrackedIds = addToSet(mVisibleTrackedIds, id);
}
} else {
if (isInSet(mVisibleTrackedIds, id)) {
mVisibleTrackedIds = removeFromSet(mVisibleTrackedIds, id);
mInvisibleTrackedIds = addToSet(mInvisibleTrackedIds, id);
}
}
}
if (mVisibleTrackedIds == null) {
if (sVerbose) {
Log.v(TAG, "No more visible ids. Invisibile = " + mInvisibleTrackedIds);
}
finishSessionLocked();
}
}
/**
* Called once the client becomes visible.
*
* @see AutofillClient#autofillClientIsVisibleForAutofill()
*/
@GuardedBy("mLock")
void onVisibleForAutofillChangedLocked() {
// The visibility of the views might have changed while the client was not be visible,
// hence update the visibility state for all views.
AutofillClient client = getClient();
ArraySet<AutofillId> updatedVisibleTrackedIds = null;
ArraySet<AutofillId> updatedInvisibleTrackedIds = null;
if (client != null) {
if (sVerbose) {
Log.v(TAG, "onVisibleForAutofillChangedLocked(): inv= " + mInvisibleTrackedIds
+ " vis=" + mVisibleTrackedIds);
}
if (mInvisibleTrackedIds != null) {
final ArrayList<AutofillId> orderedInvisibleIds =
new ArrayList<>(mInvisibleTrackedIds);
final boolean[] isVisible = client.autofillClientGetViewVisibility(
Helper.toArray(orderedInvisibleIds));
final int numInvisibleTrackedIds = orderedInvisibleIds.size();
for (int i = 0; i < numInvisibleTrackedIds; i++) {
final AutofillId id = orderedInvisibleIds.get(i);
if (isVisible[i]) {
updatedVisibleTrackedIds = addToSet(updatedVisibleTrackedIds, id);
if (sDebug) {
Log.d(TAG, "onVisibleForAutofill() " + id + " became visible");
}
} else {
updatedInvisibleTrackedIds = addToSet(updatedInvisibleTrackedIds, id);
}
}
}
if (mVisibleTrackedIds != null) {
final ArrayList<AutofillId> orderedVisibleIds =
new ArrayList<>(mVisibleTrackedIds);
final boolean[] isVisible = client.autofillClientGetViewVisibility(
Helper.toArray(orderedVisibleIds));
final int numVisibleTrackedIds = orderedVisibleIds.size();
for (int i = 0; i < numVisibleTrackedIds; i++) {
final AutofillId id = orderedVisibleIds.get(i);
if (isVisible[i]) {
updatedVisibleTrackedIds = addToSet(updatedVisibleTrackedIds, id);
} else {
updatedInvisibleTrackedIds = addToSet(updatedInvisibleTrackedIds, id);
if (sDebug) {
Log.d(TAG, "onVisibleForAutofill() " + id + " became invisible");
}
}
}
}
mInvisibleTrackedIds = updatedInvisibleTrackedIds;
mVisibleTrackedIds = updatedVisibleTrackedIds;
}
if (mVisibleTrackedIds == null) {
if (sVerbose) {
Log.v(TAG, "onVisibleForAutofillChangedLocked(): no more visible ids");
}
finishSessionLocked();
}
}
}
/**
* Callback for autofill related events.
*
* <p>Typically used for applications that display their own "auto-complete" views, so they can
* enable / disable such views when the autofill UI is shown / hidden.
*/
public abstract static class AutofillCallback {
/** @hide */
@IntDef(prefix = { "EVENT_INPUT_" }, value = {
EVENT_INPUT_SHOWN,
EVENT_INPUT_HIDDEN,
EVENT_INPUT_UNAVAILABLE
})
@Retention(RetentionPolicy.SOURCE)
public @interface AutofillEventType {}
/**
* The autofill input UI associated with the view was shown.
*
* <p>If the view provides its own auto-complete UI and its currently shown, it
* should be hidden upon receiving this event.
*/
public static final int EVENT_INPUT_SHOWN = 1;
/**
* The autofill input UI associated with the view was hidden.
*
* <p>If the view provides its own auto-complete UI that was hidden upon a
* {@link #EVENT_INPUT_SHOWN} event, it could be shown again now.
*/
public static final int EVENT_INPUT_HIDDEN = 2;
/**
* The autofill input UI associated with the view isn't shown because
* autofill is not available.
*
* <p>If the view provides its own auto-complete UI but was not displaying it
* to avoid flickering, it could shown it upon receiving this event.
*/
public static final int EVENT_INPUT_UNAVAILABLE = 3;
/**
* Called after a change in the autofill state associated with a view.
*
* @param view view associated with the change.
*
* @param event currently either {@link #EVENT_INPUT_SHOWN} or {@link #EVENT_INPUT_HIDDEN}.
*/
public void onAutofillEvent(@NonNull View view, @AutofillEventType int event) {
}
/**
* Called after a change in the autofill state associated with a virtual view.
*
* @param view parent view associated with the change.
* @param virtualId id identifying the virtual child inside the parent view.
*
* @param event currently either {@link #EVENT_INPUT_SHOWN} or {@link #EVENT_INPUT_HIDDEN}.
*/
public void onAutofillEvent(@NonNull View view, int virtualId,
@AutofillEventType int event) {
}
}
private static final class AutofillManagerClient extends IAutoFillManagerClient.Stub {
private final WeakReference<AutofillManager> mAfm;
AutofillManagerClient(AutofillManager autofillManager) {
mAfm = new WeakReference<>(autofillManager);
}
@Override
public void setState(int flags) {
final AutofillManager afm = mAfm.get();
if (afm != null) {
afm.post(() -> afm.setState(flags));
}
}
@Override
public void autofill(int sessionId, List<AutofillId> ids, List<AutofillValue> values) {
final AutofillManager afm = mAfm.get();
if (afm != null) {
afm.post(() -> afm.autofill(sessionId, ids, values));
}
}
@Override
public void authenticate(int sessionId, int authenticationId, IntentSender intent,
Intent fillInIntent) {
final AutofillManager afm = mAfm.get();
if (afm != null) {
afm.post(() -> afm.authenticate(sessionId, authenticationId, intent, fillInIntent));
}
}
@Override
public void requestShowFillUi(int sessionId, AutofillId id, int width, int height,
Rect anchorBounds, IAutofillWindowPresenter presenter) {
final AutofillManager afm = mAfm.get();
if (afm != null) {
afm.post(() -> afm.requestShowFillUi(sessionId, id, width, height, anchorBounds,
presenter));
}
}
@Override
public void requestHideFillUi(int sessionId, AutofillId id) {
final AutofillManager afm = mAfm.get();
if (afm != null) {
afm.post(() -> afm.requestHideFillUi(id, false));
}
}
@Override
public void notifyNoFillUi(int sessionId, AutofillId id, int sessionFinishedState) {
final AutofillManager afm = mAfm.get();
if (afm != null) {
afm.post(() -> afm.notifyNoFillUi(sessionId, id, sessionFinishedState));
}
}
@Override
public void dispatchUnhandledKey(int sessionId, AutofillId id, KeyEvent fullScreen) {
final AutofillManager afm = mAfm.get();
if (afm != null) {
afm.post(() -> afm.dispatchUnhandledKey(sessionId, id, fullScreen));
}
}
@Override
public void startIntentSender(IntentSender intentSender, Intent intent) {
final AutofillManager afm = mAfm.get();
if (afm != null) {
afm.post(() -> {
try {
afm.mContext.startIntentSender(intentSender, intent, 0, 0, 0);
} catch (IntentSender.SendIntentException e) {
Log.e(TAG, "startIntentSender() failed for intent:" + intentSender, e);
}
});
}
}
@Override
public void setTrackedViews(int sessionId, AutofillId[] ids,
boolean saveOnAllViewsInvisible, boolean saveOnFinish, AutofillId[] fillableIds,
AutofillId saveTriggerId) {
final AutofillManager afm = mAfm.get();
if (afm != null) {
afm.post(() -> afm.setTrackedViews(sessionId, ids, saveOnAllViewsInvisible,
saveOnFinish, fillableIds, saveTriggerId));
}
}
@Override
public void setSaveUiState(int sessionId, boolean shown) {
final AutofillManager afm = mAfm.get();
if (afm != null) {
afm.post(() -> afm.setSaveUiState(sessionId, shown));
}
}
@Override
public void setSessionFinished(int newState) {
final AutofillManager afm = mAfm.get();
if (afm != null) {
afm.post(() -> afm.setSessionFinished(newState));
}
}
}
}