| /* |
| * Copyright (C) 2018 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.contentcapture; |
| |
| import static android.view.contentcapture.ContentCaptureEvent.TYPE_CONTEXT_UPDATED; |
| import static android.view.contentcapture.ContentCaptureEvent.TYPE_SESSION_FINISHED; |
| import static android.view.contentcapture.ContentCaptureEvent.TYPE_SESSION_PAUSED; |
| import static android.view.contentcapture.ContentCaptureEvent.TYPE_SESSION_RESUMED; |
| import static android.view.contentcapture.ContentCaptureEvent.TYPE_SESSION_STARTED; |
| import static android.view.contentcapture.ContentCaptureEvent.TYPE_VIEW_APPEARED; |
| import static android.view.contentcapture.ContentCaptureEvent.TYPE_VIEW_DISAPPEARED; |
| import static android.view.contentcapture.ContentCaptureEvent.TYPE_VIEW_INSETS_CHANGED; |
| import static android.view.contentcapture.ContentCaptureEvent.TYPE_VIEW_TEXT_CHANGED; |
| import static android.view.contentcapture.ContentCaptureEvent.TYPE_VIEW_TREE_APPEARED; |
| import static android.view.contentcapture.ContentCaptureEvent.TYPE_VIEW_TREE_APPEARING; |
| import static android.view.contentcapture.ContentCaptureHelper.getSanitizedString; |
| import static android.view.contentcapture.ContentCaptureHelper.sDebug; |
| import static android.view.contentcapture.ContentCaptureHelper.sVerbose; |
| import static android.view.contentcapture.ContentCaptureManager.RESULT_CODE_FALSE; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.UiThread; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.pm.ParceledListSlice; |
| import android.graphics.Insets; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.IBinder.DeathRecipient; |
| import android.os.RemoteException; |
| import android.text.Selection; |
| import android.text.Spannable; |
| import android.text.SpannableString; |
| import android.text.Spanned; |
| import android.text.TextUtils; |
| import android.util.LocalLog; |
| import android.util.Log; |
| import android.util.TimeUtils; |
| import android.view.autofill.AutofillId; |
| import android.view.contentcapture.ViewNode.ViewStructureImpl; |
| import android.view.inputmethod.BaseInputConnection; |
| |
| import com.android.internal.os.IResultReceiver; |
| |
| import java.io.PrintWriter; |
| import java.lang.ref.WeakReference; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| /** |
| * Main session associated with a context. |
| * |
| * <p>This session is created when the activity starts and finished when it stops; clients can use |
| * it to create children activities. |
| * |
| * @hide |
| */ |
| public final class MainContentCaptureSession extends ContentCaptureSession { |
| |
| private static final String TAG = MainContentCaptureSession.class.getSimpleName(); |
| |
| // For readability purposes... |
| private static final boolean FORCE_FLUSH = true; |
| |
| /** |
| * Handler message used to flush the buffer. |
| */ |
| private static final int MSG_FLUSH = 1; |
| |
| /** |
| * Name of the {@link IResultReceiver} extra used to pass the binder interface to the service. |
| * @hide |
| */ |
| public static final String EXTRA_BINDER = "binder"; |
| |
| /** |
| * Name of the {@link IResultReceiver} extra used to pass the content capture enabled state. |
| * @hide |
| */ |
| public static final String EXTRA_ENABLED_STATE = "enabled"; |
| |
| @NonNull |
| private final AtomicBoolean mDisabled = new AtomicBoolean(false); |
| |
| @NonNull |
| private final Context mContext; |
| |
| @NonNull |
| private final ContentCaptureManager mManager; |
| |
| @NonNull |
| private final Handler mHandler; |
| |
| /** |
| * Interface to the system_server binder object - it's only used to start the session (and |
| * notify when the session is finished). |
| */ |
| @NonNull |
| private final IContentCaptureManager mSystemServerInterface; |
| |
| /** |
| * Direct interface to the service binder object - it's used to send the events, including the |
| * last ones (when the session is finished) |
| */ |
| @NonNull |
| private IContentCaptureDirectManager mDirectServiceInterface; |
| @Nullable |
| private DeathRecipient mDirectServiceVulture; |
| |
| private int mState = UNKNOWN_STATE; |
| |
| @Nullable |
| private IBinder mApplicationToken; |
| @Nullable |
| private IBinder mShareableActivityToken; |
| |
| @Nullable |
| private ComponentName mComponentName; |
| |
| /** |
| * List of events held to be sent as a batch. |
| */ |
| @Nullable |
| private ArrayList<ContentCaptureEvent> mEvents; |
| |
| // Used just for debugging purposes (on dump) |
| private long mNextFlush; |
| |
| /** |
| * Whether the next buffer flush is queued by a text changed event. |
| */ |
| private boolean mNextFlushForTextChanged = false; |
| |
| @Nullable |
| private final LocalLog mFlushHistory; |
| |
| /** |
| * Binder object used to update the session state. |
| */ |
| @NonNull |
| private final SessionStateReceiver mSessionStateReceiver; |
| |
| private static class SessionStateReceiver extends IResultReceiver.Stub { |
| private final WeakReference<MainContentCaptureSession> mMainSession; |
| |
| SessionStateReceiver(MainContentCaptureSession session) { |
| mMainSession = new WeakReference<>(session); |
| } |
| |
| @Override |
| public void send(int resultCode, Bundle resultData) { |
| final MainContentCaptureSession mainSession = mMainSession.get(); |
| if (mainSession == null) { |
| Log.w(TAG, "received result after mina session released"); |
| return; |
| } |
| final IBinder binder; |
| if (resultData != null) { |
| // Change in content capture enabled. |
| final boolean hasEnabled = resultData.getBoolean(EXTRA_ENABLED_STATE); |
| if (hasEnabled) { |
| final boolean disabled = (resultCode == RESULT_CODE_FALSE); |
| mainSession.mDisabled.set(disabled); |
| return; |
| } |
| binder = resultData.getBinder(EXTRA_BINDER); |
| if (binder == null) { |
| Log.wtf(TAG, "No " + EXTRA_BINDER + " extra result"); |
| mainSession.mHandler.post(() -> mainSession.resetSession( |
| STATE_DISABLED | STATE_INTERNAL_ERROR)); |
| return; |
| } |
| } else { |
| binder = null; |
| } |
| mainSession.mHandler.post(() -> mainSession.onSessionStarted(resultCode, binder)); |
| } |
| } |
| |
| protected MainContentCaptureSession(@NonNull Context context, |
| @NonNull ContentCaptureManager manager, @NonNull Handler handler, |
| @NonNull IContentCaptureManager systemServerInterface) { |
| mContext = context; |
| mManager = manager; |
| mHandler = handler; |
| mSystemServerInterface = systemServerInterface; |
| |
| final int logHistorySize = mManager.mOptions.logHistorySize; |
| mFlushHistory = logHistorySize > 0 ? new LocalLog(logHistorySize) : null; |
| |
| mSessionStateReceiver = new SessionStateReceiver(this); |
| } |
| |
| @Override |
| MainContentCaptureSession getMainCaptureSession() { |
| return this; |
| } |
| |
| @Override |
| ContentCaptureSession newChild(@NonNull ContentCaptureContext clientContext) { |
| final ContentCaptureSession child = new ChildContentCaptureSession(this, clientContext); |
| notifyChildSessionStarted(mId, child.mId, clientContext); |
| return child; |
| } |
| |
| /** |
| * Starts this session. |
| */ |
| @UiThread |
| void start(@NonNull IBinder token, @NonNull IBinder shareableActivityToken, |
| @NonNull ComponentName component, int flags) { |
| if (!isContentCaptureEnabled()) return; |
| |
| if (sVerbose) { |
| Log.v(TAG, "start(): token=" + token + ", comp=" |
| + ComponentName.flattenToShortString(component)); |
| } |
| |
| if (hasStarted()) { |
| // TODO(b/122959591): make sure this is expected (and when), or use Log.w |
| if (sDebug) { |
| Log.d(TAG, "ignoring handleStartSession(" + token + "/" |
| + ComponentName.flattenToShortString(component) + " while on state " |
| + getStateAsString(mState)); |
| } |
| return; |
| } |
| mState = STATE_WAITING_FOR_SERVER; |
| mApplicationToken = token; |
| mShareableActivityToken = shareableActivityToken; |
| mComponentName = component; |
| |
| if (sVerbose) { |
| Log.v(TAG, "handleStartSession(): token=" + token + ", act=" |
| + getDebugState() + ", id=" + mId); |
| } |
| |
| try { |
| mSystemServerInterface.startSession(mApplicationToken, mShareableActivityToken, |
| component, mId, flags, mSessionStateReceiver); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Error starting session for " + component.flattenToShortString() + ": " + e); |
| } |
| } |
| |
| @Override |
| void onDestroy() { |
| mHandler.removeMessages(MSG_FLUSH); |
| mHandler.post(() -> { |
| try { |
| flush(FLUSH_REASON_SESSION_FINISHED); |
| } finally { |
| destroySession(); |
| } |
| }); |
| } |
| |
| /** |
| * Callback from {@code system_server} after call to |
| * {@link IContentCaptureManager#startSession(IBinder, ComponentName, String, int, |
| * IResultReceiver)}. |
| * |
| * @param resultCode session state |
| * @param binder handle to {@code IContentCaptureDirectManager} |
| */ |
| @UiThread |
| private void onSessionStarted(int resultCode, @Nullable IBinder binder) { |
| if (binder != null) { |
| mDirectServiceInterface = IContentCaptureDirectManager.Stub.asInterface(binder); |
| mDirectServiceVulture = () -> { |
| Log.w(TAG, "Keeping session " + mId + " when service died"); |
| mState = STATE_SERVICE_DIED; |
| mDisabled.set(true); |
| }; |
| try { |
| binder.linkToDeath(mDirectServiceVulture, 0); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Failed to link to death on " + binder + ": " + e); |
| } |
| } |
| |
| if ((resultCode & STATE_DISABLED) != 0) { |
| resetSession(resultCode); |
| } else { |
| mState = resultCode; |
| mDisabled.set(false); |
| // Flush any pending data immediately as buffering forced until now. |
| flushIfNeeded(FLUSH_REASON_SESSION_CONNECTED); |
| } |
| if (sVerbose) { |
| Log.v(TAG, "handleSessionStarted() result: id=" + mId + " resultCode=" + resultCode |
| + ", state=" + getStateAsString(mState) + ", disabled=" + mDisabled.get() |
| + ", binder=" + binder + ", events=" + (mEvents == null ? 0 : mEvents.size())); |
| } |
| } |
| |
| @UiThread |
| private void sendEvent(@NonNull ContentCaptureEvent event) { |
| sendEvent(event, /* forceFlush= */ false); |
| } |
| |
| @UiThread |
| private void sendEvent(@NonNull ContentCaptureEvent event, boolean forceFlush) { |
| final int eventType = event.getType(); |
| if (sVerbose) Log.v(TAG, "handleSendEvent(" + getDebugState() + "): " + event); |
| if (!hasStarted() && eventType != ContentCaptureEvent.TYPE_SESSION_STARTED |
| && eventType != ContentCaptureEvent.TYPE_CONTEXT_UPDATED) { |
| // TODO(b/120494182): comment when this could happen (dialogs?) |
| if (sVerbose) { |
| Log.v(TAG, "handleSendEvent(" + getDebugState() + ", " |
| + ContentCaptureEvent.getTypeAsString(eventType) |
| + "): dropping because session not started yet"); |
| } |
| return; |
| } |
| if (mDisabled.get()) { |
| // This happens when the event was queued in the handler before the sesison was ready, |
| // then handleSessionStarted() returned and set it as disabled - we need to drop it, |
| // otherwise it will keep triggering handleScheduleFlush() |
| if (sVerbose) Log.v(TAG, "handleSendEvent(): ignoring when disabled"); |
| return; |
| } |
| final int maxBufferSize = mManager.mOptions.maxBufferSize; |
| if (mEvents == null) { |
| if (sVerbose) { |
| Log.v(TAG, "handleSendEvent(): creating buffer for " + maxBufferSize + " events"); |
| } |
| mEvents = new ArrayList<>(maxBufferSize); |
| } |
| |
| // Some type of events can be merged together |
| boolean addEvent = true; |
| |
| if (eventType == TYPE_VIEW_TEXT_CHANGED) { |
| // We determine whether to add or merge the current event by following criteria: |
| // 1. Don't have composing span: always add. |
| // 2. Have composing span: |
| // 2.1 either last or current text is empty: add. |
| // 2.2 last event doesn't have composing span: add. |
| // Otherwise, merge. |
| final CharSequence text = event.getText(); |
| final boolean hasComposingSpan = event.hasComposingSpan(); |
| if (hasComposingSpan) { |
| ContentCaptureEvent lastEvent = null; |
| for (int index = mEvents.size() - 1; index >= 0; index--) { |
| final ContentCaptureEvent tmpEvent = mEvents.get(index); |
| if (event.getId().equals(tmpEvent.getId())) { |
| lastEvent = tmpEvent; |
| break; |
| } |
| } |
| if (lastEvent != null && lastEvent.hasComposingSpan()) { |
| final CharSequence lastText = lastEvent.getText(); |
| final boolean bothNonEmpty = !TextUtils.isEmpty(lastText) |
| && !TextUtils.isEmpty(text); |
| boolean equalContent = |
| TextUtils.equals(lastText, text) |
| && lastEvent.hasSameComposingSpan(event) |
| && lastEvent.hasSameSelectionSpan(event); |
| if (equalContent) { |
| addEvent = false; |
| } else if (bothNonEmpty) { |
| lastEvent.mergeEvent(event); |
| addEvent = false; |
| } |
| if (!addEvent && sVerbose) { |
| Log.v(TAG, "Buffering VIEW_TEXT_CHANGED event, updated text=" |
| + getSanitizedString(text)); |
| } |
| } |
| } |
| } |
| |
| if (!mEvents.isEmpty() && eventType == TYPE_VIEW_DISAPPEARED) { |
| final ContentCaptureEvent lastEvent = mEvents.get(mEvents.size() - 1); |
| if (lastEvent.getType() == TYPE_VIEW_DISAPPEARED |
| && event.getSessionId() == lastEvent.getSessionId()) { |
| if (sVerbose) { |
| Log.v(TAG, "Buffering TYPE_VIEW_DISAPPEARED events for session " |
| + lastEvent.getSessionId()); |
| } |
| lastEvent.mergeEvent(event); |
| addEvent = false; |
| } |
| } |
| |
| if (addEvent) { |
| mEvents.add(event); |
| } |
| |
| // TODO: we need to change when the flush happens so that we don't flush while the |
| // composing span hasn't changed. But we might need to keep flushing the events for the |
| // non-editable views and views that don't have the composing state; otherwise some other |
| // Content Capture features may be delayed. |
| |
| final int numberEvents = mEvents.size(); |
| |
| final boolean bufferEvent = numberEvents < maxBufferSize; |
| |
| if (bufferEvent && !forceFlush) { |
| final int flushReason; |
| if (eventType == TYPE_VIEW_TEXT_CHANGED) { |
| mNextFlushForTextChanged = true; |
| flushReason = FLUSH_REASON_TEXT_CHANGE_TIMEOUT; |
| } else { |
| if (mNextFlushForTextChanged) { |
| if (sVerbose) { |
| Log.i(TAG, "Not scheduling flush because next flush is for text changed"); |
| } |
| return; |
| } |
| |
| flushReason = FLUSH_REASON_IDLE_TIMEOUT; |
| } |
| scheduleFlush(flushReason, /* checkExisting= */ true); |
| return; |
| } |
| |
| if (mState != STATE_ACTIVE && numberEvents >= maxBufferSize) { |
| // Callback from startSession hasn't been called yet - typically happens on system |
| // apps that are started before the system service |
| // TODO(b/122959591): try to ignore session while system is not ready / boot |
| // not complete instead. Similarly, the manager service should return right away |
| // when the user does not have a service set |
| if (sDebug) { |
| Log.d(TAG, "Closing session for " + getDebugState() |
| + " after " + numberEvents + " delayed events"); |
| } |
| resetSession(STATE_DISABLED | STATE_NO_RESPONSE); |
| // TODO(b/111276913): denylist activity / use special flag to indicate that |
| // when it's launched again |
| return; |
| } |
| final int flushReason; |
| switch (eventType) { |
| case ContentCaptureEvent.TYPE_SESSION_STARTED: |
| flushReason = FLUSH_REASON_SESSION_STARTED; |
| break; |
| case ContentCaptureEvent.TYPE_SESSION_FINISHED: |
| flushReason = FLUSH_REASON_SESSION_FINISHED; |
| break; |
| default: |
| flushReason = FLUSH_REASON_FULL; |
| } |
| |
| flush(flushReason); |
| } |
| |
| @UiThread |
| private boolean hasStarted() { |
| return mState != UNKNOWN_STATE; |
| } |
| |
| @UiThread |
| private void scheduleFlush(@FlushReason int reason, boolean checkExisting) { |
| if (sVerbose) { |
| Log.v(TAG, "handleScheduleFlush(" + getDebugState(reason) |
| + ", checkExisting=" + checkExisting); |
| } |
| if (!hasStarted()) { |
| if (sVerbose) Log.v(TAG, "handleScheduleFlush(): session not started yet"); |
| return; |
| } |
| |
| if (mDisabled.get()) { |
| // Should not be called on this state, as handleSendEvent checks. |
| // But we rather add one if check and log than re-schedule and keep the session alive... |
| Log.e(TAG, "handleScheduleFlush(" + getDebugState(reason) + "): should not be called " |
| + "when disabled. events=" + (mEvents == null ? null : mEvents.size())); |
| return; |
| } |
| if (checkExisting && mHandler.hasMessages(MSG_FLUSH)) { |
| // "Renew" the flush message by removing the previous one |
| mHandler.removeMessages(MSG_FLUSH); |
| } |
| |
| final int flushFrequencyMs; |
| if (reason == FLUSH_REASON_TEXT_CHANGE_TIMEOUT) { |
| flushFrequencyMs = mManager.mOptions.textChangeFlushingFrequencyMs; |
| } else { |
| if (reason != FLUSH_REASON_IDLE_TIMEOUT) { |
| if (sDebug) { |
| Log.d(TAG, "handleScheduleFlush(" + getDebugState(reason) + "): not a timeout " |
| + "reason because mDirectServiceInterface is not ready yet"); |
| } |
| } |
| flushFrequencyMs = mManager.mOptions.idleFlushingFrequencyMs; |
| } |
| |
| mNextFlush = System.currentTimeMillis() + flushFrequencyMs; |
| if (sVerbose) { |
| Log.v(TAG, "handleScheduleFlush(): scheduled to flush in " |
| + flushFrequencyMs + "ms: " + TimeUtils.logTimeOfDay(mNextFlush)); |
| } |
| // Post using a Runnable directly to trim a few μs from PooledLambda.obtainMessage() |
| mHandler.postDelayed(() -> flushIfNeeded(reason), MSG_FLUSH, flushFrequencyMs); |
| } |
| |
| @UiThread |
| private void flushIfNeeded(@FlushReason int reason) { |
| if (mEvents == null || mEvents.isEmpty()) { |
| if (sVerbose) Log.v(TAG, "Nothing to flush"); |
| return; |
| } |
| flush(reason); |
| } |
| |
| @Override |
| @UiThread |
| void flush(@FlushReason int reason) { |
| if (mEvents == null) return; |
| |
| if (mDisabled.get()) { |
| Log.e(TAG, "handleForceFlush(" + getDebugState(reason) + "): should not be when " |
| + "disabled"); |
| return; |
| } |
| |
| if (mDirectServiceInterface == null) { |
| if (sVerbose) { |
| Log.v(TAG, "handleForceFlush(" + getDebugState(reason) + "): hold your horses, " |
| + "client not ready: " + mEvents); |
| } |
| if (!mHandler.hasMessages(MSG_FLUSH)) { |
| scheduleFlush(reason, /* checkExisting= */ false); |
| } |
| return; |
| } |
| |
| mNextFlushForTextChanged = false; |
| |
| final int numberEvents = mEvents.size(); |
| final String reasonString = getFlushReasonAsString(reason); |
| if (sDebug) { |
| Log.d(TAG, "Flushing " + numberEvents + " event(s) for " + getDebugState(reason)); |
| } |
| if (mFlushHistory != null) { |
| // Logs reason, size, max size, idle timeout |
| final String logRecord = "r=" + reasonString + " s=" + numberEvents |
| + " m=" + mManager.mOptions.maxBufferSize |
| + " i=" + mManager.mOptions.idleFlushingFrequencyMs; |
| mFlushHistory.log(logRecord); |
| } |
| try { |
| mHandler.removeMessages(MSG_FLUSH); |
| |
| final ParceledListSlice<ContentCaptureEvent> events = clearEvents(); |
| mDirectServiceInterface.sendEvents(events, reason, mManager.mOptions); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Error sending " + numberEvents + " for " + getDebugState() |
| + ": " + e); |
| } |
| } |
| |
| @Override |
| public void updateContentCaptureContext(@Nullable ContentCaptureContext context) { |
| notifyContextUpdated(mId, context); |
| } |
| |
| /** |
| * Resets the buffer and return a {@link ParceledListSlice} with the previous events. |
| */ |
| @NonNull |
| @UiThread |
| private ParceledListSlice<ContentCaptureEvent> clearEvents() { |
| // NOTE: we must save a reference to the current mEvents and then set it to to null, |
| // otherwise clearing it would clear it in the receiving side if the service is also local. |
| if (mEvents == null) { |
| return new ParceledListSlice<>(Collections.EMPTY_LIST); |
| } |
| |
| final List<ContentCaptureEvent> events = new ArrayList<>(mEvents); |
| mEvents.clear(); |
| return new ParceledListSlice<>(events); |
| } |
| |
| @UiThread |
| private void destroySession() { |
| if (sDebug) { |
| Log.d(TAG, "Destroying session (ctx=" + mContext + ", id=" + mId + ") with " |
| + (mEvents == null ? 0 : mEvents.size()) + " event(s) for " |
| + getDebugState()); |
| } |
| |
| try { |
| mSystemServerInterface.finishSession(mId); |
| } catch (RemoteException e) { |
| Log.e(TAG, "Error destroying system-service session " + mId + " for " |
| + getDebugState() + ": " + e); |
| } |
| |
| if (mDirectServiceInterface != null) { |
| mDirectServiceInterface.asBinder().unlinkToDeath(mDirectServiceVulture, 0); |
| } |
| mDirectServiceInterface = null; |
| } |
| |
| // TODO(b/122454205): once we support multiple sessions, we might need to move some of these |
| // clearings out. |
| @UiThread |
| private void resetSession(int newState) { |
| if (sVerbose) { |
| Log.v(TAG, "handleResetSession(" + getActivityName() + "): from " |
| + getStateAsString(mState) + " to " + getStateAsString(newState)); |
| } |
| mState = newState; |
| mDisabled.set((newState & STATE_DISABLED) != 0); |
| // TODO(b/122454205): must reset children (which currently is owned by superclass) |
| mApplicationToken = null; |
| mShareableActivityToken = null; |
| mComponentName = null; |
| mEvents = null; |
| if (mDirectServiceInterface != null) { |
| mDirectServiceInterface.asBinder().unlinkToDeath(mDirectServiceVulture, 0); |
| } |
| mDirectServiceInterface = null; |
| mHandler.removeMessages(MSG_FLUSH); |
| } |
| |
| @Override |
| void internalNotifyViewAppeared(@NonNull ViewStructureImpl node) { |
| notifyViewAppeared(mId, node); |
| } |
| |
| @Override |
| void internalNotifyViewDisappeared(@NonNull AutofillId id) { |
| notifyViewDisappeared(mId, id); |
| } |
| |
| @Override |
| void internalNotifyViewTextChanged(@NonNull AutofillId id, @Nullable CharSequence text) { |
| notifyViewTextChanged(mId, id, text); |
| } |
| |
| @Override |
| void internalNotifyViewInsetsChanged(@NonNull Insets viewInsets) { |
| notifyViewInsetsChanged(mId, viewInsets); |
| } |
| |
| @Override |
| public void internalNotifyViewTreeEvent(boolean started) { |
| notifyViewTreeEvent(mId, started); |
| } |
| |
| @Override |
| public void internalNotifySessionResumed() { |
| notifySessionResumed(mId); |
| } |
| |
| @Override |
| public void internalNotifySessionPaused() { |
| notifySessionPaused(mId); |
| } |
| |
| @Override |
| boolean isContentCaptureEnabled() { |
| return super.isContentCaptureEnabled() && mManager.isContentCaptureEnabled(); |
| } |
| |
| // Called by ContentCaptureManager.isContentCaptureEnabled |
| boolean isDisabled() { |
| return mDisabled.get(); |
| } |
| |
| /** |
| * Sets the disabled state of content capture. |
| * |
| * @return whether disabled state was changed. |
| */ |
| boolean setDisabled(boolean disabled) { |
| return mDisabled.compareAndSet(!disabled, disabled); |
| } |
| |
| // TODO(b/122454205): refactor "notifyXXXX" methods below to a common "Buffer" object that is |
| // shared between ActivityContentCaptureSession and ChildContentCaptureSession objects. Such |
| // change should also get get rid of the "internalNotifyXXXX" methods above |
| void notifyChildSessionStarted(int parentSessionId, int childSessionId, |
| @NonNull ContentCaptureContext clientContext) { |
| mHandler.post(() -> sendEvent(new ContentCaptureEvent(childSessionId, TYPE_SESSION_STARTED) |
| .setParentSessionId(parentSessionId).setClientContext(clientContext), |
| FORCE_FLUSH)); |
| } |
| |
| void notifyChildSessionFinished(int parentSessionId, int childSessionId) { |
| mHandler.post(() -> sendEvent(new ContentCaptureEvent(childSessionId, TYPE_SESSION_FINISHED) |
| .setParentSessionId(parentSessionId), FORCE_FLUSH)); |
| } |
| |
| void notifyViewAppeared(int sessionId, @NonNull ViewStructureImpl node) { |
| mHandler.post(() -> sendEvent(new ContentCaptureEvent(sessionId, TYPE_VIEW_APPEARED) |
| .setViewNode(node.mNode))); |
| } |
| |
| /** Public because is also used by ViewRootImpl */ |
| public void notifyViewDisappeared(int sessionId, @NonNull AutofillId id) { |
| mHandler.post(() -> sendEvent( |
| new ContentCaptureEvent(sessionId, TYPE_VIEW_DISAPPEARED).setAutofillId(id))); |
| } |
| |
| void notifyViewTextChanged(int sessionId, @NonNull AutofillId id, @Nullable CharSequence text) { |
| // Since the same CharSequence instance may be reused in the TextView, we need to make |
| // a copy of its content so that its value will not be changed by subsequent updates |
| // in the TextView. |
| final CharSequence eventText = stringOrSpannedStringWithoutNoCopySpans(text); |
| |
| final int composingStart; |
| final int composingEnd; |
| if (text instanceof Spannable) { |
| composingStart = BaseInputConnection.getComposingSpanStart((Spannable) text); |
| composingEnd = BaseInputConnection.getComposingSpanEnd((Spannable) text); |
| } else { |
| composingStart = ContentCaptureEvent.MAX_INVALID_VALUE; |
| composingEnd = ContentCaptureEvent.MAX_INVALID_VALUE; |
| } |
| |
| final int startIndex = Selection.getSelectionStart(text); |
| final int endIndex = Selection.getSelectionEnd(text); |
| mHandler.post(() -> sendEvent( |
| new ContentCaptureEvent(sessionId, TYPE_VIEW_TEXT_CHANGED) |
| .setAutofillId(id).setText(eventText) |
| .setComposingIndex(composingStart, composingEnd) |
| .setSelectionIndex(startIndex, endIndex))); |
| } |
| |
| private CharSequence stringOrSpannedStringWithoutNoCopySpans(CharSequence source) { |
| if (source == null) { |
| return null; |
| } else if (source instanceof Spanned) { |
| return new SpannableString(source, /* ignoreNoCopySpan= */ true); |
| } else { |
| return source.toString(); |
| } |
| } |
| |
| /** Public because is also used by ViewRootImpl */ |
| public void notifyViewInsetsChanged(int sessionId, @NonNull Insets viewInsets) { |
| mHandler.post(() -> sendEvent(new ContentCaptureEvent(sessionId, TYPE_VIEW_INSETS_CHANGED) |
| .setInsets(viewInsets))); |
| } |
| |
| /** Public because is also used by ViewRootImpl */ |
| public void notifyViewTreeEvent(int sessionId, boolean started) { |
| final int type = started ? TYPE_VIEW_TREE_APPEARING : TYPE_VIEW_TREE_APPEARED; |
| mHandler.post(() -> sendEvent(new ContentCaptureEvent(sessionId, type), FORCE_FLUSH)); |
| } |
| |
| void notifySessionResumed(int sessionId) { |
| mHandler.post(() -> sendEvent( |
| new ContentCaptureEvent(sessionId, TYPE_SESSION_RESUMED), FORCE_FLUSH)); |
| } |
| |
| void notifySessionPaused(int sessionId) { |
| mHandler.post(() -> sendEvent( |
| new ContentCaptureEvent(sessionId, TYPE_SESSION_PAUSED), FORCE_FLUSH)); |
| } |
| |
| void notifyContextUpdated(int sessionId, @Nullable ContentCaptureContext context) { |
| mHandler.post(() -> sendEvent(new ContentCaptureEvent(sessionId, TYPE_CONTEXT_UPDATED) |
| .setClientContext(context), FORCE_FLUSH)); |
| } |
| |
| @Override |
| void dump(@NonNull String prefix, @NonNull PrintWriter pw) { |
| super.dump(prefix, pw); |
| |
| pw.print(prefix); pw.print("mContext: "); pw.println(mContext); |
| pw.print(prefix); pw.print("user: "); pw.println(mContext.getUserId()); |
| if (mDirectServiceInterface != null) { |
| pw.print(prefix); pw.print("mDirectServiceInterface: "); |
| pw.println(mDirectServiceInterface); |
| } |
| pw.print(prefix); pw.print("mDisabled: "); pw.println(mDisabled.get()); |
| pw.print(prefix); pw.print("isEnabled(): "); pw.println(isContentCaptureEnabled()); |
| pw.print(prefix); pw.print("state: "); pw.println(getStateAsString(mState)); |
| if (mApplicationToken != null) { |
| pw.print(prefix); pw.print("app token: "); pw.println(mApplicationToken); |
| } |
| if (mShareableActivityToken != null) { |
| pw.print(prefix); pw.print("sharable activity token: "); |
| pw.println(mShareableActivityToken); |
| } |
| if (mComponentName != null) { |
| pw.print(prefix); pw.print("component name: "); |
| pw.println(mComponentName.flattenToShortString()); |
| } |
| if (mEvents != null && !mEvents.isEmpty()) { |
| final int numberEvents = mEvents.size(); |
| pw.print(prefix); pw.print("buffered events: "); pw.print(numberEvents); |
| pw.print('/'); pw.println(mManager.mOptions.maxBufferSize); |
| if (sVerbose && numberEvents > 0) { |
| final String prefix3 = prefix + " "; |
| for (int i = 0; i < numberEvents; i++) { |
| final ContentCaptureEvent event = mEvents.get(i); |
| pw.print(prefix3); pw.print(i); pw.print(": "); event.dump(pw); |
| pw.println(); |
| } |
| } |
| pw.print(prefix); pw.print("mNextFlushForTextChanged: "); |
| pw.println(mNextFlushForTextChanged); |
| pw.print(prefix); pw.print("flush frequency: "); |
| if (mNextFlushForTextChanged) { |
| pw.println(mManager.mOptions.textChangeFlushingFrequencyMs); |
| } else { |
| pw.println(mManager.mOptions.idleFlushingFrequencyMs); |
| } |
| pw.print(prefix); pw.print("next flush: "); |
| TimeUtils.formatDuration(mNextFlush - System.currentTimeMillis(), pw); |
| pw.print(" ("); pw.print(TimeUtils.logTimeOfDay(mNextFlush)); pw.println(")"); |
| } |
| if (mFlushHistory != null) { |
| pw.print(prefix); pw.println("flush history:"); |
| mFlushHistory.reverseDump(/* fd= */ null, pw, /* args= */ null); pw.println(); |
| } else { |
| pw.print(prefix); pw.println("not logging flush history"); |
| } |
| |
| super.dump(prefix, pw); |
| } |
| |
| /** |
| * Gets a string that can be used to identify the activity on logging statements. |
| */ |
| private String getActivityName() { |
| return mComponentName == null |
| ? "pkg:" + mContext.getPackageName() |
| : "act:" + mComponentName.flattenToShortString(); |
| } |
| |
| @NonNull |
| private String getDebugState() { |
| return getActivityName() + " [state=" + getStateAsString(mState) + ", disabled=" |
| + mDisabled.get() + "]"; |
| } |
| |
| @NonNull |
| private String getDebugState(@FlushReason int reason) { |
| return getDebugState() + ", reason=" + getFlushReasonAsString(reason); |
| } |
| } |
