There are three primary parties involved in the input method
* framework (IMF) architecture:
*
* In most cases, applications that are using the standard
* {@link android.widget.TextView} or its subclasses will have little they need
* to do to work well with soft input methods. The main things you need to
* be aware of are:
*
* More finer-grained control is available through the APIs here to directly
* interact with the IMF and its IME -- either showing or hiding the input
* area, letting the user pick an input method, etc.
*
* For the rare people amongst us writing their own text editors, you
* will need to implement {@link android.view.View#onCreateInputConnection}
* to return a new instance of your own {@link InputConnection} interface
* allowing the IME to interact with your editor.
*
*
* An input method (IME) is implemented
* as a {@link android.app.Service}, typically deriving from
* {@link android.inputmethodservice.InputMethodService}. It must provide
* the core {@link InputMethod} interface, though this is normally handled by
* {@link android.inputmethodservice.InputMethodService} and implementors will
* only need to deal with the higher-level API there.
*
* See the {@link android.inputmethodservice.InputMethodService} class for
* more information on implementing IMEs.
*
*
* There are a lot of security issues associated with input methods,
* since they essentially have freedom to completely drive the UI and monitor
* everything the user enters. The Android input method framework also allows
* arbitrary third party IMEs, so care must be taken to restrict their
* selection and interactions.
*
* If your app targets Android 11 (API level 30) or higher, the methods in
* this class each return a filtered result by the rules of
* package visibility,
* except for the currently connected IME. Apps having a query for the
* {@link InputMethod#SERVICE_INTERFACE} see all IMEs.
*/
@SystemService(Context.INPUT_METHOD_SERVICE)
@RequiresFeature(PackageManager.FEATURE_INPUT_METHODS)
public final class InputMethodManager {
private static final boolean DEBUG = false;
private static final String TAG = "InputMethodManager";
private static final String PENDING_EVENT_COUNTER = "aq:imm";
private static final int NOT_A_SUBTYPE_ID = -1;
/**
* A constant that represents Voice IME.
*
* @see InputMethodSubtype#getMode()
*/
private static final String SUBTYPE_MODE_VOICE = "voice";
/**
* Provide this to {@link IInputMethodManagerGlobalInvoker#startInputOrWindowGainedFocus(int,
* IInputMethodClient, IBinder, int, int, int, EditorInfo,
* com.android.internal.inputmethod.IRemoteInputConnection, IRemoteAccessibilityInputConnection,
* int, int, ImeOnBackInvokedDispatcher)} to receive
* {@link android.window.OnBackInvokedCallback} registrations from IME.
*/
private final ImeOnBackInvokedDispatcher mImeDispatcher =
new ImeOnBackInvokedDispatcher(Handler.getMain()) {
@Override
public WindowOnBackInvokedDispatcher getReceivingDispatcher() {
synchronized (mH) {
return mCurRootView != null ? mCurRootView.getOnBackInvokedDispatcher() : null;
}
}
};
/**
* A runnable that reports {@link InputConnection} opened event for calls to
* {@link IInputMethodManagerGlobalInvoker#startInputOrWindowGainedFocusAsync}.
*/
private abstract static class ReportInputConnectionOpenedRunner implements Runnable {
/**
* Sequence number to track startInput requests to
* {@link IInputMethodManagerGlobalInvoker#startInputOrWindowGainedFocusAsync}
*/
int mSequenceNum;
ReportInputConnectionOpenedRunner(int sequenceNum) {
this.mSequenceNum = sequenceNum;
}
}
private ReportInputConnectionOpenedRunner mReportInputConnectionOpenedRunner;
/**
* Ensures that {@link #sInstance} becomes non-{@code null} for application that have directly
* or indirectly relied on {@link #sInstance} via reflection or something like that.
*
* Here are scenarios we know and there could be more scenarios we are not
* aware of right know.
*
* Since this is purely a compatibility hack, this method must be used only from
* {@link android.view.WindowManagerGlobal#getWindowSession()} and {@link #getInstance()}.
*
* TODO(Bug 116157766): Remove this method once we clean up {@link UnsupportedAppUsage}.
* @hide
*/
public static void ensureDefaultInstanceForDefaultDisplayIfNecessary() {
// Skip this call if we are in system_server, as the system code should not use this
// deprecated instance.
if (!ActivityThread.isSystem()) {
forContextInternal(Display.DEFAULT_DISPLAY, Looper.getMainLooper());
}
}
private static final Object sLock = new Object();
/**
* @deprecated This cannot be compatible with multi-display. Please do not use this.
*/
@Deprecated
@GuardedBy("sLock")
@UnsupportedAppUsage
static InputMethodManager sInstance;
/**
* Global map between display to {@link InputMethodManager}.
*
* Currently this map works like a so-called leaky singleton. Once an instance is registered
* for the associated display ID, that instance will never be garbage collected.
*
* TODO(Bug 116699479): Implement instance clean up mechanism.
*/
@GuardedBy("sLock")
private static final SparseArray sInstanceMap = new SparseArray<>();
/**
* Timeout in milliseconds for delivering a key to an IME.
*/
private static final long INPUT_METHOD_NOT_RESPONDING_TIMEOUT = 2500;
/** @hide */
public static final int DISPATCH_IN_PROGRESS = -1;
/** @hide */
public static final int DISPATCH_NOT_HANDLED = 0;
/** @hide */
public static final int DISPATCH_HANDLED = 1;
/** @hide */
public static final int SHOW_IM_PICKER_MODE_AUTO = 0;
/** @hide */
public static final int SHOW_IM_PICKER_MODE_INCLUDE_AUXILIARY_SUBTYPES = 1;
/** @hide */
public static final int SHOW_IM_PICKER_MODE_EXCLUDE_AUXILIARY_SUBTYPES = 2;
/**
* Clear {@link #SHOW_FORCED} flag when the next IME focused application changed.
*
*
* Note that when this flag enabled in server side, {@link #SHOW_FORCED} will no longer
* affect the next focused application to keep showing IME, in case of unexpected IME visible
* when the next focused app isn't be the IME requester.
*
* @hide
*/
@TestApi
@ChangeId
@EnabledSince(targetSdkVersion = Build.VERSION_CODES.TIRAMISU)
public static final long CLEAR_SHOW_FORCED_FLAG_WHEN_LEAVING = 214016041L; // This is a bug id.
/**
* If {@code true}, avoid calling the
* {@link com.android.server.inputmethod.InputMethodManagerService InputMethodManagerService}
* by skipping the call to {@link IInputMethodManager#startInputOrWindowGainedFocus}
* when we are switching focus between two non-editable views. This saves the cost of a binder
* call into the system server.
* Note:
* The default value is {@code true}.
*/
private static final boolean OPTIMIZE_NONEDITABLE_VIEWS =
SystemProperties.getBoolean("debug.imm.optimize_noneditable_views", true);
/** @hide */
@IntDef(flag = true, prefix = { "HANDWRITING_DELEGATE_FLAG_" }, value = {
HANDWRITING_DELEGATE_FLAG_HOME_DELEGATOR_ALLOWED,
})
@Retention(RetentionPolicy.SOURCE)
public @interface HandwritingDelegateFlags {}
/**
* Flag indicating that views from the default home screen ({@link Intent#CATEGORY_HOME}) may
* act as a handwriting delegator for the delegate editor view. If set, views from the home
* screen package will be trusted for handwriting delegation, in addition to views in the {@code
* delegatorPackageName} passed to
* {@link #acceptStylusHandwritingDelegation(View, String, int, Executor, Consumer)} .
*/
@FlaggedApi(FLAG_HOME_SCREEN_HANDWRITING_DELEGATOR)
public static final int HANDWRITING_DELEGATE_FLAG_HOME_DELEGATOR_ALLOWED = 0x0001;
/**
* @deprecated Use {@link IInputMethodManagerGlobalInvoker} instead.
*/
@Deprecated
@UnsupportedAppUsage
final IInputMethodManager mService;
private final Looper mMainLooper;
// For scheduling work on the main thread. This also serves as our
// global lock.
// Remark on @UnsupportedAppUsage: there were context leaks on old versions
// of android (b/37043700), so developers used this field to perform manual clean up.
// Leaks were fixed, hacks were backported to AppCompatActivity,
// so an access to the field is closed.
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
final H mH;
// Our generic input connection if the current target does not have its own.
private final RemoteInputConnectionImpl mFallbackInputConnection;
private final int mDisplayId;
/**
* True if this input method client is active, initially false.
*/
@GuardedBy("mH")
private boolean mActive = false;
/**
* {@code true} if next {@link ImeFocusController#onPostWindowFocus} needs to
* restart input.
*/
@GuardedBy("mH")
private boolean mRestartOnNextWindowFocus = true;
/**
* As reported by IME through InputConnection.
*/
@GuardedBy("mH")
private boolean mFullscreenMode;
// -----------------------------------------------------------
/**
* This is the view that should currently be served by an input method,
* regardless of the state of setting that up.
*/
@Nullable
@GuardedBy("mH")
private View mServedView;
/**
* This is the next view that will be served by the input method, when
* we get around to updating things.
*/
@Nullable
@GuardedBy("mH")
private View mNextServedView;
/**
* The latest {@link ViewRootImpl} that has, or most recently had, input method focus.
*
*
This value will be cleared when it becomes inactive and no longer has window focus.
*/
@Nullable
@GuardedBy("mH")
ViewRootImpl mCurRootView;
/**
* Whether the {@link #mCurRootView} currently has window focus.
*/
@GuardedBy("mH")
boolean mCurRootViewWindowFocused;
/**
* This is set when we are in the process of connecting, to determine
* when we have actually finished.
*/
@GuardedBy("mH")
private boolean mServedConnecting;
/**
* This is non-null when we have connected the served view; it holds
* the attributes that were last retrieved from the served view and given
* to the input connection.
*/
@GuardedBy("mH")
private EditorInfo mCurrentEditorInfo;
@GuardedBy("mH")
@Nullable
private ViewFocusParameterInfo mPreviousViewFocusParameters;
/**
* The InputConnection that was last retrieved from the served view.
*/
@GuardedBy("mH")
private RemoteInputConnectionImpl mServedInputConnection;
/**
* The completions that were last provided by the served view.
*/
@GuardedBy("mH")
private CompletionInfo[] mCompletions;
// Cursor position on the screen.
@GuardedBy("mH")
@UnsupportedAppUsage
Rect mTmpCursorRect = new Rect();
@GuardedBy("mH")
@UnsupportedAppUsage
Rect mCursorRect = new Rect();
/** Cached value for {@link #isStylusHandwritingAvailable} for userId. */
@GuardedBy("mH")
private PropertyInvalidatedCache mStylusHandwritingAvailableCache;
/** Cached value for {@link #isConnectionlessStylusHandwritingAvailable} for userId. */
@GuardedBy("mH")
private PropertyInvalidatedCache
mConnectionlessStylusHandwritingAvailableCache;
private static final String CACHE_KEY_STYLUS_HANDWRITING_PROPERTY =
"cache_key.system_server.stylus_handwriting";
private static final String CACHE_KEY_CONNECTIONLESS_STYLUS_HANDWRITING_PROPERTY =
"cache_key.system_server.connectionless_stylus_handwriting";
@GuardedBy("mH")
private int mCursorSelStart;
@GuardedBy("mH")
private int mCursorSelEnd;
@GuardedBy("mH")
private int mCursorCandStart;
@GuardedBy("mH")
private int mCursorCandEnd;
@GuardedBy("mH")
private int mInitialSelStart;
@GuardedBy("mH")
private int mInitialSelEnd;
/**
* Handler for {@link RemoteInputConnectionImpl#getInputConnection()}.
*/
@GuardedBy("mH")
private Handler mServedInputConnectionHandler;
/**
* The instance that has previously been sent to the input method.
*/
@GuardedBy("mH")
private CursorAnchorInfo mCursorAnchorInfo = null;
// -----------------------------------------------------------
/**
* ID of the method we are bound to.
*
* @deprecated New code should use {@code mCurBindState.mImeId}.
*/
@Deprecated
@GuardedBy("mH")
@UnsupportedAppUsage(trackingBug = 236937383,
maxTargetSdk = Build.VERSION_CODES.UPSIDE_DOWN_CAKE,
publicAlternatives = "Apps should not change behavior based on the currently connected"
+ " IME. If absolutely needed, use {@link InputMethodInfo#getId()} instead.")
String mCurId;
/**
* Kept for {@link UnsupportedAppUsage}. Not officially maintained.
*
* @deprecated New code should use {@code mCurBindState.mImeSession}.
*/
@Deprecated
@GuardedBy("mH")
@Nullable
@UnsupportedAppUsage(trackingBug = 236937383,
maxTargetSdk = Build.VERSION_CODES.UPSIDE_DOWN_CAKE,
publicAlternatives = "Use methods on {@link InputMethodManager} instead.")
IInputMethodSession mCurMethod;
/**
* Encapsulates per-binding state from {@link InputBindResult}.
*/
@GuardedBy("mH")
@Nullable
private BindState mCurBindState;
/**
* Encapsulates IPCs to the currently connected AccessibilityServices.
*/
@Nullable
@GuardedBy("mH")
private final SparseArray
mAccessibilityInputMethodSession = new SparseArray<>();
@GuardedBy("mH")
private InputChannel mCurChannel;
@GuardedBy("mH")
private ImeInputEventSender mCurSender;
private static final int REQUEST_UPDATE_CURSOR_ANCHOR_INFO_NONE = 0x0;
/**
* The monitor mode for {@link #updateCursorAnchorInfo(View, CursorAnchorInfo)}.
* @deprecated This is kept for {@link UnsupportedAppUsage}. Must not be used.
*/
@Deprecated
@GuardedBy("mH")
private int mRequestUpdateCursorAnchorInfoMonitorMode = REQUEST_UPDATE_CURSOR_ANCHOR_INFO_NONE;
/**
* Applies the IME visibility and listens for other state changes.
*/
@GuardedBy("mH")
private ImeInsetsSourceConsumer mImeInsetsConsumer;
@GuardedBy("mH")
private final Pool mPendingEventPool = new SimplePool<>(20);
@GuardedBy("mH")
private final SparseArray mPendingEvents = new SparseArray<>(20);
private final DelegateImpl mDelegate = new DelegateImpl();
private static boolean sPreventImeStartupUnlessTextEditor;
// -----------------------------------------------------------
private static final int MSG_DUMP = 1;
private static final int MSG_BIND = 2;
private static final int MSG_UNBIND = 3;
private static final int MSG_SET_ACTIVE = 4;
private static final int MSG_SEND_INPUT_EVENT = 5;
private static final int MSG_TIMEOUT_INPUT_EVENT = 6;
private static final int MSG_FLUSH_INPUT_EVENT = 7;
private static final int MSG_REPORT_FULLSCREEN_MODE = 10;
private static final int MSG_BIND_ACCESSIBILITY_SERVICE = 11;
private static final int MSG_UNBIND_ACCESSIBILITY_SERVICE = 12;
private static final int MSG_SET_INTERACTIVE = 13;
private static final int MSG_SET_VISIBILITY = 14;
private static final int MSG_ON_SHOW_REQUESTED = 31;
private static final int MSG_START_INPUT_RESULT = 40;
/**
* Calling this will invalidate Local stylus handwriting availability Cache which
* forces the next query in any process to recompute the cache.
* @hide
*/
public static void invalidateLocalStylusHandwritingAvailabilityCaches() {
PropertyInvalidatedCache.invalidateCache(CACHE_KEY_STYLUS_HANDWRITING_PROPERTY);
}
/**
* Calling this will invalidate the local connectionless stylus handwriting availability cache,
* which forces the next query in any process to recompute the cache.
*
* @hide
*/
public static void invalidateLocalConnectionlessStylusHandwritingAvailabilityCaches() {
PropertyInvalidatedCache.invalidateCache(
CACHE_KEY_CONNECTIONLESS_STYLUS_HANDWRITING_PROPERTY);
}
private static boolean isAutofillUIShowing(View servedView) {
AutofillManager afm = servedView.getContext().getSystemService(AutofillManager.class);
return afm != null && afm.isAutofillUiShowing();
}
/**
* Returns fallback {@link InputMethodManager} if the called one is not likely to be compatible
* with the given {@code view}.
*
* @param view {@link View} to be checked.
* @return {@code null} when it is unnecessary (or impossible) to use fallback
* {@link InputMethodManager} to which IME API calls need to be re-dispatched.
* Non-{@code null} {@link InputMethodManager} if this method believes it'd be safer to
* re-dispatch IME APIs calls on it.
*/
@Nullable
private InputMethodManager getFallbackInputMethodManagerIfNecessary(@Nullable View view) {
if (view == null) {
return null;
}
// As evidenced in Bug 118341760, view.getViewRootImpl().getDisplayId() is supposed to be
// more reliable to determine with which display the given view is interacting than
// view.getContext().getDisplayId() / view.getContext().getSystemService(), which can be
// easily messed up by app developers (or library authors) by creating inconsistent
// ContextWrapper objects that re-dispatch those methods to other Context such as
// ApplicationContext.
final ViewRootImpl viewRootImpl = view.getViewRootImpl();
if (viewRootImpl == null) {
return null;
}
final int viewRootDisplayId = viewRootImpl.getDisplayId();
if (viewRootDisplayId == mDisplayId) {
// Expected case. Good to go.
return null;
}
final InputMethodManager fallbackImm =
viewRootImpl.mContext.getSystemService(InputMethodManager.class);
if (fallbackImm == null) {
Log.v(TAG, "b/117267690: Failed to get non-null fallback IMM. view=" + view);
return null;
}
if (fallbackImm.mDisplayId != viewRootDisplayId) {
Log.v(TAG, "b/117267690: Failed to get fallback IMM with expected displayId="
+ viewRootDisplayId + " actual IMM#displayId=" + fallbackImm.mDisplayId
+ " view=" + view);
return null;
}
Log.v(TAG, "b/117267690: Display ID mismatch found."
+ " ViewRootImpl displayId=" + viewRootDisplayId
+ " InputMethodManager displayId=" + mDisplayId
+ ". Use the right InputMethodManager instance to avoid performance overhead.",
new Throwable());
return fallbackImm;
}
/**
* An internal API that returns the {@link Context} of the current served view connected to
* an input method.
* @hide
*/
Context getFallbackContextFromServedView() {
synchronized (mH) {
if (mCurRootView == null) {
return null;
}
return mServedView != null ? mServedView.getContext() : null;
}
}
private static boolean canStartInput(View servedView) {
// We can start input ether the servedView has window focus
// or the activity is showing autofill ui.
return servedView.hasWindowFocus() || isAutofillUIShowing(servedView);
}
/**
* Reports whether the IME is currently perceptible or not, according to the leash applied by
* {@link android.view.WindowInsetsController}.
* @hide
*/
public void reportPerceptible(@NonNull IBinder windowToken, boolean perceptible) {
IInputMethodManagerGlobalInvoker.reportPerceptibleAsync(windowToken, perceptible);
}
private final class DelegateImpl implements
ImeFocusController.InputMethodManagerDelegate {
@Override
public void onPreWindowGainedFocus(ViewRootImpl viewRootImpl) {
synchronized (mH) {
setCurrentRootViewLocked(viewRootImpl);
mCurRootViewWindowFocused = true;
}
}
@Override
public void onPostWindowGainedFocus(View viewForWindowFocus,
@NonNull WindowManager.LayoutParams windowAttribute) {
boolean forceFocus = false;
synchronized (mH) {
// Update mNextServedView when focusedView changed.
onViewFocusChangedInternal(viewForWindowFocus, true);
// Starting new input when the next focused view is same as served view but the
// currently active connection (if any) is not associated with it.
final boolean nextFocusIsServedView = mServedView == viewForWindowFocus;
if (nextFocusIsServedView
&& !hasActiveInputConnectionInternal(viewForWindowFocus)) {
forceFocus = true;
}
}
final int softInputMode = windowAttribute.softInputMode;
final int windowFlags = windowAttribute.flags;
int startInputFlags = getStartInputFlags(viewForWindowFocus, 0);
startInputFlags |= StartInputFlags.WINDOW_GAINED_FOCUS;
ImeTracing.getInstance().triggerClientDump(
"InputMethodManager.DelegateImpl#startInputAsyncOnWindowFocusGain",
InputMethodManager.this, null /* icProto */);
boolean checkFocusResult;
synchronized (mH) {
if (mCurRootView == null) {
return;
}
if (mRestartOnNextWindowFocus) {
if (DEBUG) Log.v(TAG, "Restarting due to mRestartOnNextWindowFocus as true");
mRestartOnNextWindowFocus = false;
forceFocus = true;
}
checkFocusResult = checkFocusInternalLocked(forceFocus, mCurRootView);
}
if (checkFocusResult) {
// We need to restart input on the current focus view. This
// should be done in conjunction with telling the system service
// about the window gaining focus, to help make the transition
// smooth.
if (startInputOnWindowFocusGainInternal(StartInputReason.WINDOW_FOCUS_GAIN,
viewForWindowFocus, startInputFlags, softInputMode, windowFlags)) {
return;
}
}
synchronized (mH) {
// For some reason we didn't do a startInput + windowFocusGain, so
// we'll just do a window focus gain and call it a day.
if (DEBUG) {
Log.v(TAG, "Reporting focus gain, without startInput");
}
// ignore the result
Trace.traceBegin(TRACE_TAG_WINDOW_MANAGER, "IMM.startInputOrWindowGainedFocus");
IInputMethodManagerGlobalInvoker.startInputOrWindowGainedFocus(
StartInputReason.WINDOW_FOCUS_GAIN_REPORT_ONLY, mClient,
viewForWindowFocus.getWindowToken(), startInputFlags, softInputMode,
windowFlags,
null,
null, null,
mCurRootView.mContext.getApplicationInfo().targetSdkVersion,
UserHandle.myUserId(), mImeDispatcher);
Trace.traceEnd(TRACE_TAG_WINDOW_MANAGER);
}
}
@Override
public void onWindowLostFocus(@NonNull ViewRootImpl viewRootImpl) {
synchronized (mH) {
if (mCurRootView == viewRootImpl) {
mCurRootViewWindowFocused = false;
if (Flags.refactorInsetsController() && mCurRootView != null) {
final int softInputMode = mCurRootView.mWindowAttributes.softInputMode;
final int state =
softInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_STATE;
if (state == WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN) {
// when losing focus (e.g., by going to another window), we reset the
// requestedVisibleTypes of WindowInsetsController by hiding the IME
if (DEBUG) {
Log.d(TAG, "onWindowLostFocus, hiding IME because "
+ "of STATE_ALWAYS_HIDDEN");
}
mCurRootView.getInsetsController().hide(WindowInsets.Type.ime());
}
}
clearCurRootViewIfNeeded();
}
}
}
@Override
public void onViewFocusChanged(@Nullable View view, boolean hasFocus) {
onViewFocusChangedInternal(view, hasFocus);
}
@Override
public void onScheduledCheckFocus(ViewRootImpl viewRootImpl) {
synchronized (mH) {
if (!checkFocusInternalLocked(false, viewRootImpl)) {
return;
}
}
startInputOnWindowFocusGainInternal(StartInputReason.SCHEDULED_CHECK_FOCUS,
null /* focusedView */, 0 /* startInputFlags */, 0 /* softInputMode */,
0 /* windowFlags */);
}
@Override
public void onViewDetachedFromWindow(View view, ViewRootImpl viewRootImpl) {
synchronized (mH) {
if (mCurRootView != view.getViewRootImpl()) {
return;
}
if (mNextServedView == view) {
mNextServedView = null;
}
if (mServedView == view) {
viewRootImpl.dispatchCheckFocus();
}
}
}
@Override
public void onWindowDismissed(ViewRootImpl viewRootImpl) {
synchronized (mH) {
if (mCurRootView != viewRootImpl) {
return;
}
if (mServedView != null) {
finishInputLocked();
}
setCurrentRootViewLocked(null);
}
}
@GuardedBy("mH")
private void setCurrentRootViewLocked(ViewRootImpl rootView) {
mImeDispatcher.switchRootView(mCurRootView, rootView);
mCurRootView = rootView;
}
}
/** @hide */
public DelegateImpl getDelegate() {
return mDelegate;
}
/**
* Checks whether the active input connection (if any) is for the given view.
*
* Note that {@code view} parameter does not take
* {@link View#checkInputConnectionProxy(View)} into account. This method returns {@code true}
* when and only when the specified {@code view} is the actual {@link View} instance that is
* connected to the IME.
*
* @param view {@link View} to be checked.
* @return {@code true} if {@code view} is currently interacting with IME.
* @hide
*/
@TestApi
public boolean hasActiveInputConnection(@Nullable View view) {
synchronized (mH) {
return mCurRootView != null
&& view != null
&& mServedView == view
&& mServedInputConnection != null
&& mServedInputConnection.isAssociatedWith(view)
&& isImeSessionAvailableLocked();
}
}
/**
* Checks whether the active input connection (if any) is for the given view.
*
* Note that this method is only intended for restarting input after focus gain
* (e.g. b/160391516), DO NOT leverage this method to do another check.
*/
private boolean hasActiveInputConnectionInternal(@Nullable View view) {
synchronized (mH) {
if (!hasServedByInputMethodLocked(view) || !isImeSessionAvailableLocked()) {
return false;
}
return mServedInputConnection != null
&& mServedInputConnection.isAssociatedWith(view);
}
}
private boolean startInputOnWindowFocusGainInternal(@StartInputReason int startInputReason,
View focusedView, @StartInputFlags int startInputFlags,
@SoftInputModeFlags int softInputMode, int windowFlags) {
synchronized (mH) {
mCurrentEditorInfo = null;
mCompletions = null;
mServedConnecting = true;
}
return startInputInner(startInputReason,
focusedView != null ? focusedView.getWindowToken() : null, startInputFlags,
softInputMode, windowFlags);
}
@GuardedBy("mH")
private View getServedViewLocked() {
return mCurRootView != null ? mServedView : null;
}
@GuardedBy("mH")
private View getNextServedViewLocked() {
return mCurRootView != null ? mNextServedView : null;
}
/**
* Returns {@code true} when the given view has been served by Input Method.
*/
@GuardedBy("mH")
private boolean hasServedByInputMethodLocked(View view) {
final View servedView = getServedViewLocked();
return (servedView == view
|| (servedView != null && servedView.checkInputConnectionProxy(view)));
}
class H extends Handler {
H(Looper looper) {
super(looper, null, true);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_DUMP: {
SomeArgs args = (SomeArgs)msg.obj;
try {
doDump((FileDescriptor)args.arg1,
(PrintWriter)args.arg2, (String[])args.arg3);
} catch (RuntimeException e) {
((PrintWriter)args.arg2).println("Exception: " + e);
}
synchronized (args.arg4) {
((CountDownLatch)args.arg4).countDown();
}
args.recycle();
return;
}
case MSG_BIND: {
final InputBindResult res = (InputBindResult) msg.obj;
if (DEBUG) {
Log.i(TAG, "handleMessage: MSG_BIND " + res.sequence + "," + res.id);
}
synchronized (mH) {
final int curBindSequence = getBindSequenceLocked();
if (curBindSequence < 0 || curBindSequence != res.sequence) {
Log.w(TAG, "Ignoring onBind: cur seq=" + curBindSequence
+ ", given seq=" + res.sequence);
if (res.channel != null && res.channel != mCurChannel) {
res.channel.dispose();
}
return;
}
mRequestUpdateCursorAnchorInfoMonitorMode =
REQUEST_UPDATE_CURSOR_ANCHOR_INFO_NONE;
updateInputChannelLocked(res.channel);
mCurMethod = res.method; // for @UnsupportedAppUsage
mCurBindState = new BindState(res);
mCurId = res.id; // for @UnsupportedAppUsage
}
startInputInner(StartInputReason.BOUND_TO_IMMS, null, 0, 0, 0);
return;
}
case MSG_START_INPUT_RESULT: {
final InputBindResult res = (InputBindResult) msg.obj;
final int startInputSeq = msg.arg1;
if (res == null) {
// IMMS logs .wtf already.
return;
}
if (DEBUG) Log.v(TAG, "Starting input: Bind result=" + res);
synchronized (mH) {
if (res.id != null) {
updateInputChannelLocked(res.channel);
mCurMethod = res.method; // for @UnsupportedAppUsage
mCurBindState = new BindState(res);
mAccessibilityInputMethodSession.clear();
if (res.accessibilitySessions != null) {
for (int i = 0; i < res.accessibilitySessions.size(); i++) {
IAccessibilityInputMethodSessionInvoker wrapper =
IAccessibilityInputMethodSessionInvoker.createOrNull(
res.accessibilitySessions.valueAt(i));
if (wrapper != null) {
mAccessibilityInputMethodSession.append(
res.accessibilitySessions.keyAt(i), wrapper);
}
}
}
mCurId = res.id; // for @UnsupportedAppUsage
} else if (res.channel != null && res.channel != mCurChannel) {
res.channel.dispose();
}
switch (res.result) {
case InputBindResult.ResultCode.ERROR_NOT_IME_TARGET_WINDOW:
mRestartOnNextWindowFocus = true;
mServedView = null;
break;
}
if (mCompletions != null) {
if (isImeSessionAvailableLocked()) {
mCurBindState.mImeSession.displayCompletions(mCompletions);
}
}
if (res != null
&& res.method != null
&& mServedView != null
&& mReportInputConnectionOpenedRunner != null
&& mReportInputConnectionOpenedRunner.mSequenceNum
== startInputSeq) {
mReportInputConnectionOpenedRunner.run();
}
mReportInputConnectionOpenedRunner = null;
}
return;
}
case MSG_UNBIND: {
final int sequence = msg.arg1;
@UnbindReason
final int reason = msg.arg2;
if (DEBUG) {
Log.i(TAG, "handleMessage: MSG_UNBIND " + sequence +
" reason=" + InputMethodDebug.unbindReasonToString(reason));
}
final boolean startInput;
synchronized (mH) {
if (reason == UnbindReason.DISCONNECT_IME) {
mImeDispatcher.clear();
}
if (getBindSequenceLocked() != sequence) {
return;
}
clearAllAccessibilityBindingLocked();
clearBindingLocked();
// If we were actively using the last input method, then
// we would like to re-connect to the next input method.
final View servedView = getServedViewLocked();
if (servedView != null && servedView.isFocused()) {
mServedConnecting = true;
}
startInput = mActive;
}
if (startInput) {
startInputInner(
StartInputReason.UNBOUND_FROM_IMMS, null, 0, 0, 0);
}
return;
}
case MSG_BIND_ACCESSIBILITY_SERVICE: {
final int id = msg.arg1;
final InputBindResult res = (InputBindResult) msg.obj;
if (DEBUG) {
Log.i(TAG, "handleMessage: MSG_BIND_ACCESSIBILITY " + res.sequence
+ "," + res.id);
}
synchronized (mH) {
final int curBindSequence = getBindSequenceLocked();
if (curBindSequence < 0 || curBindSequence != res.sequence) {
Log.w(TAG, "Ignoring onBind: cur seq=" + curBindSequence
+ ", given seq=" + res.sequence);
if (res.channel != null && res.channel != mCurChannel) {
res.channel.dispose();
}
return;
}
// Since IMM can start inputting text before a11y sessions are back,
// we send a notification so that the a11y service knows the session is
// registered and update the a11y service with the current cursor positions.
if (res.accessibilitySessions != null) {
IAccessibilityInputMethodSessionInvoker invoker =
IAccessibilityInputMethodSessionInvoker.createOrNull(
res.accessibilitySessions.get(id));
if (invoker != null) {
mAccessibilityInputMethodSession.put(id, invoker);
if (mServedInputConnection != null) {
invoker.updateSelection(mInitialSelStart, mInitialSelEnd,
mCursorSelStart, mCursorSelEnd, mCursorCandStart,
mCursorCandEnd);
} else {
// If an a11y service binds before input starts, we should still
// send a notification because the a11y service doesn't know it
// binds before or after input starts, it may wonder if it binds
// after input starts, why it doesn't receive a notification of
// the current cursor positions.
invoker.updateSelection(-1, -1, -1, -1, -1, -1);
}
}
}
}
startInputInner(StartInputReason.BOUND_ACCESSIBILITY_SESSION_TO_IMMS, null,
0, 0, 0);
return;
}
case MSG_UNBIND_ACCESSIBILITY_SERVICE: {
final int sequence = msg.arg1;
final int id = msg.arg2;
if (DEBUG) {
Log.i(TAG, "handleMessage: MSG_UNBIND_ACCESSIBILITY_SERVICE "
+ sequence + " id=" + id);
}
synchronized (mH) {
if (getBindSequenceLocked() != sequence) {
if (DEBUG) {
Log.i(TAG, "current BindSequence =" + getBindSequenceLocked()
+ " sequence =" + sequence + " id=" + id);
}
return;
}
clearAccessibilityBindingLocked(id);
}
return;
}
case MSG_SET_ACTIVE: {
final boolean active = msg.arg1 != 0;
final boolean fullscreen = msg.arg2 != 0;
if (DEBUG) {
Log.i(TAG, "handleMessage: MSG_SET_ACTIVE " + active + ", was " + mActive);
}
synchronized (mH) {
mActive = active;
mFullscreenMode = fullscreen;
if (!active) {
// Some other client has starting using the IME, so note
// that this happened and make sure our own editor's
// state is reset.
mRestartOnNextWindowFocus = true;
// Note that finishComposingText() is allowed to run
// even when we are not active.
mFallbackInputConnection.finishComposingTextFromImm();
if (clearCurRootViewIfNeeded()) {
return;
}
}
// Check focus again in case that "onWindowFocus" is called before
// handling this message.
final View servedView = getServedViewLocked();
if (servedView == null || !canStartInput(servedView)) {
return;
}
if (mCurRootView == null) {
return;
}
if (!checkFocusInternalLocked(mRestartOnNextWindowFocus, mCurRootView)) {
return;
}
mCurrentEditorInfo = null;
mCompletions = null;
mServedConnecting = true;
}
final int reason = active ? StartInputReason.ACTIVATED_BY_IMMS
: StartInputReason.DEACTIVATED_BY_IMMS;
startInputInner(reason, null, 0, 0, 0);
return;
}
case MSG_SET_INTERACTIVE: {
final boolean interactive = msg.arg1 != 0;
final boolean fullscreen = msg.arg2 != 0;
if (DEBUG) {
Log.i(TAG, "handleMessage: MSG_SET_INTERACTIVE " + interactive
+ ", was " + mActive);
}
synchronized (mH) {
mActive = interactive;
mFullscreenMode = fullscreen;
if (interactive) {
// Find the next view focus to start the input connection when the
// device was interactive.
final View rootView =
mCurRootView != null ? mCurRootView.getView() : null;
if (rootView == null) {
// No window focused or view was removed, ignore request.
return;
}
final ViewRootImpl currentViewRootImpl = mCurRootView;
// Post this on UI thread as required for view focus code.
rootView.post(() -> {
synchronized (mH) {
if (mCurRootView != currentViewRootImpl) {
// Focused window changed since posting, ignore request.
return;
}
}
final View curRootView = currentViewRootImpl.getView();
if (curRootView == null) {
// View was removed, ignore request.
return;
}
final View focusedView = curRootView.findFocus();
onViewFocusChangedInternal(focusedView, focusedView != null);
});
} else {
// Finish input connection when device becomes non-interactive.
finishInputLocked();
if (isImeSessionAvailableLocked()) {
mCurBindState.mImeSession.finishInput();
}
forAccessibilitySessionsLocked(
IAccessibilityInputMethodSessionInvoker::finishInput);
}
}
return;
}
case MSG_SET_VISIBILITY:
final boolean visible = msg.arg1 != 0;
synchronized (mH) {
if (visible) {
showSoftInput(mServedView, /* flags */ 0);
} else {
if (mCurRootView != null
&& mCurRootView.getInsetsController() != null) {
mCurRootView.getInsetsController().hide(WindowInsets.Type.ime());
}
}
}
break;
case MSG_SEND_INPUT_EVENT: {
sendInputEventAndReportResultOnMainLooper((PendingEvent)msg.obj);
return;
}
case MSG_TIMEOUT_INPUT_EVENT: {
finishedInputEvent(msg.arg1, false, true);
return;
}
case MSG_FLUSH_INPUT_EVENT: {
finishedInputEvent(msg.arg1, false, false);
return;
}
case MSG_REPORT_FULLSCREEN_MODE: {
final boolean fullscreen = msg.arg1 != 0;
RemoteInputConnectionImpl ic = null;
synchronized (mH) {
if (mFullscreenMode != fullscreen && mServedInputConnection != null) {
ic = mServedInputConnection;
mFullscreenMode = fullscreen;
}
}
if (ic != null) {
ic.dispatchReportFullscreenMode(fullscreen);
}
return;
}
case MSG_ON_SHOW_REQUESTED: {
synchronized (mH) {
if (mImeInsetsConsumer != null) {
mImeInsetsConsumer.onShowRequested();
}
}
return;
}
}
}
}
private final IInputMethodClient.Stub mClient = new IInputMethodClient.Stub() {
@Override
protected void dump(FileDescriptor fd, PrintWriter fout, String[] args) {
// No need to check for dump permission, since we only give this
// interface to the system.
CountDownLatch latch = new CountDownLatch(1);
SomeArgs sargs = SomeArgs.obtain();
sargs.arg1 = fd;
sargs.arg2 = fout;
sargs.arg3 = args;
sargs.arg4 = latch;
mH.sendMessage(mH.obtainMessage(MSG_DUMP, sargs));
try {
if (!latch.await(5, TimeUnit.SECONDS)) {
fout.println("Timeout waiting for dump");
}
} catch (InterruptedException e) {
fout.println("Interrupted waiting for dump");
}
}
@Override
public void onBindMethod(InputBindResult res) {
mH.obtainMessage(MSG_BIND, res).sendToTarget();
}
@Override
public void onStartInputResult(InputBindResult res, int startInputSeq) {
mH.obtainMessage(MSG_START_INPUT_RESULT, startInputSeq, -1 /* unused */, res)
.sendToTarget();
}
@Override
public void onBindAccessibilityService(InputBindResult res, int id) {
mH.obtainMessage(MSG_BIND_ACCESSIBILITY_SERVICE, id, 0, res).sendToTarget();
}
@Override
public void onUnbindMethod(int sequence, @UnbindReason int unbindReason) {
mH.obtainMessage(MSG_UNBIND, sequence, unbindReason).sendToTarget();
}
@Override
public void onUnbindAccessibilityService(int sequence, int id) {
mH.obtainMessage(MSG_UNBIND_ACCESSIBILITY_SERVICE, sequence, id).sendToTarget();
}
@Override
public void setActive(boolean active, boolean fullscreen) {
mH.obtainMessage(MSG_SET_ACTIVE, active ? 1 : 0, fullscreen ? 1 : 0).sendToTarget();
}
@Override
public void setInteractive(boolean interactive, boolean fullscreen) {
mH.obtainMessage(MSG_SET_INTERACTIVE, interactive ? 1 : 0, fullscreen ? 1 : 0)
.sendToTarget();
}
@Override
public void setImeVisibility(boolean visible) {
mH.obtainMessage(MSG_SET_VISIBILITY, visible ? 1 : 0, 0).sendToTarget();
}
@Override
public void scheduleStartInputIfNecessary(boolean fullscreen) {
// TODO(b/149859205): See if we can optimize this by having a fused dedicated operation.
mH.obtainMessage(MSG_SET_ACTIVE, 0 /* active */, fullscreen ? 1 : 0).sendToTarget();
mH.obtainMessage(MSG_SET_ACTIVE, 1 /* active */, fullscreen ? 1 : 0).sendToTarget();
}
@Override
public void reportFullscreenMode(boolean fullscreen) {
mH.obtainMessage(MSG_REPORT_FULLSCREEN_MODE, fullscreen ? 1 : 0, 0)
.sendToTarget();
}
@Override
public void setImeTraceEnabled(boolean enabled) {
ImeTracing.getInstance().setEnabled(enabled);
}
@Override
public void throwExceptionFromSystem(String message) {
throw new RuntimeException(message);
}
};
/**
* For layoutlib to clean up static objects inside {@link InputMethodManager}.
*/
static void tearDownEditMode() {
if (!isInEditMode()) {
throw new UnsupportedOperationException(
"This method must be called only from layoutlib");
}
synchronized (sLock) {
sInstance = null;
}
}
/**
* For layoutlib to override this method to return {@code true}.
*
* @return {@code true} if the process is running for developer tools
* @see View#isInEditMode()
*/
private static boolean isInEditMode() {
return false;
}
static boolean isInEditModeInternal() {
return isInEditMode();
}
@NonNull
private static InputMethodManager createInstance(int displayId, Looper looper) {
return isInEditMode() ? createStubInstance(displayId, looper)
: createRealInstance(displayId, looper);
}
@NonNull
private static InputMethodManager createRealInstance(int displayId, Looper looper) {
final IInputMethodManager service = IInputMethodManagerGlobalInvoker.getService();
if (service == null) {
throw new IllegalStateException("IInputMethodManager is not available");
}
final InputMethodManager imm = new InputMethodManager(service, displayId, looper);
// InputMethodManagerService#addClient() relies on Binder.getCalling{Pid, Uid}() to
// associate PID/UID with each IME client. This means:
// A. if this method call will be handled as an IPC, there is no problem.
// B. if this method call will be handled as an in-proc method call, we need to
// ensure that Binder.getCalling{Pid, Uid}() return Process.my{Pid, Uid}()
// Either ways we can always call Binder.{clear, restore}CallingIdentity() because
// 1) doing so has no effect for A and 2) doing so is sufficient for B.
final long identity = Binder.clearCallingIdentity();
try {
IInputMethodManagerGlobalInvoker.addClient(imm.mClient, imm.mFallbackInputConnection,
displayId);
} finally {
Binder.restoreCallingIdentity(identity);
}
return imm;
}
@NonNull
private static InputMethodManager createStubInstance(int displayId, Looper looper) {
// If InputMethodManager is running for layoutlib, stub out IPCs into IMMS.
final Class c = IInputMethodManager.class;
final IInputMethodManager stubInterface =
(IInputMethodManager) Proxy.newProxyInstance(c.getClassLoader(),
new Class[]{c}, (proxy, method, args) -> {
final Class returnType = method.getReturnType();
if (returnType == boolean.class) {
return false;
} else if (returnType == int.class) {
return 0;
} else if (returnType == long.class) {
return 0L;
} else if (returnType == short.class) {
return 0;
} else if (returnType == char.class) {
return 0;
} else if (returnType == byte.class) {
return 0;
} else if (returnType == float.class) {
return 0f;
} else if (returnType == double.class) {
return 0.0;
} else {
return null;
}
});
return new InputMethodManager(stubInterface, displayId, looper);
}
private InputMethodManager(@NonNull IInputMethodManager service, int displayId, Looper looper) {
mService = service; // For @UnsupportedAppUsage
mMainLooper = looper;
mH = new H(looper);
mDisplayId = displayId;
mFallbackInputConnection = new RemoteInputConnectionImpl(looper,
new BaseInputConnection(this, false), this, null);
}
/**
* Retrieve an instance for the given {@link Context}, creating it if it doesn't already exist.
*
* @param context {@link Context} for which IME APIs need to work
* @return {@link InputMethodManager} instance
* @hide
*/
@NonNull
public static InputMethodManager forContext(@DisplayContext Context context) {
final int displayId = context.getDisplayId();
// For better backward compatibility, we always use Looper.getMainLooper() for the default
// display case.
final Looper looper = displayId == Display.DEFAULT_DISPLAY
? Looper.getMainLooper() : context.getMainLooper();
// Keep track of whether to expect the IME to be unavailable so as to avoid log spam in
// sendInputEventOnMainLooperLocked() by not logging a verbose message on every DPAD event
sPreventImeStartupUnlessTextEditor = context.getResources().getBoolean(
com.android.internal.R.bool.config_preventImeStartupUnlessTextEditor);
return forContextInternal(displayId, looper);
}
@NonNull
private static InputMethodManager forContextInternal(int displayId, Looper looper) {
final boolean isDefaultDisplay = displayId == Display.DEFAULT_DISPLAY;
synchronized (sLock) {
InputMethodManager instance = sInstanceMap.get(displayId);
if (instance != null) {
return instance;
}
instance = createInstance(displayId, looper);
// For backward compatibility, store the instance also to sInstance for default display.
if (sInstance == null && isDefaultDisplay) {
sInstance = instance;
}
sInstanceMap.put(displayId, instance);
return instance;
}
}
/**
* Deprecated. Do not use.
*
* @return global {@link InputMethodManager} instance
* @deprecated Use {@link Context#getSystemService(Class)} instead. This method cannot fully
* support multi-display scenario.
* @hide
*/
@Deprecated
@UnsupportedAppUsage
public static InputMethodManager getInstance() {
Log.w(TAG, "InputMethodManager.getInstance() is deprecated because it cannot be"
+ " compatible with multi-display."
+ " Use context.getSystemService(InputMethodManager.class) instead.",
new Throwable());
ensureDefaultInstanceForDefaultDisplayIfNecessary();
return peekInstance();
}
/**
* Deprecated. Do not use.
*
* @return {@link #sInstance}
* @deprecated Use {@link Context#getSystemService(Class)} instead. This method cannot fully
* support multi-display scenario.
* @hide
*/
@Deprecated
@UnsupportedAppUsage
public static InputMethodManager peekInstance() {
Log.w(TAG, "InputMethodManager.peekInstance() is deprecated because it cannot be"
+ " compatible with multi-display."
+ " Use context.getSystemService(InputMethodManager.class) instead.",
new Throwable());
synchronized (sLock) {
return sInstance;
}
}
/**
* Returns the list of installed input methods.
*
* On multi user environment, this API returns a result for the calling process user.
*
* @return {@link List} of {@link InputMethodInfo}.
*/
@NonNull
public List getInputMethodList() {
// We intentionally do not use UserHandle.getCallingUserId() here because for system
// services InputMethodManagerInternal.getInputMethodListAsUser() should be used
// instead.
return IInputMethodManagerGlobalInvoker.getInputMethodList(UserHandle.myUserId(),
DirectBootAwareness.AUTO);
}
/**
* Returns {@code true} if currently selected IME supports Stylus handwriting & is enabled.
* If the method returns {@code false}, {@link #startStylusHandwriting(View)} shouldn't be
* called and Stylus touch should continue as normal touch input.
*
* @see #startStylusHandwriting(View)
*/
public boolean isStylusHandwritingAvailable() {
return isStylusHandwritingAvailableAsUser(UserHandle.of(UserHandle.myUserId()));
}
/**
* Returns {@code true} if currently selected IME supports Stylus handwriting & is enabled for
* the given userId.
*
* If the method returns {@code false}, {@link #startStylusHandwriting(View)} shouldn't be
* called and Stylus touch should continue as normal touch input.
*
* {@link Manifest.permission#INTERACT_ACROSS_USERS_FULL} is required when and only when
* {@code user} is different from the user of the current process.
*
* @see #startStylusHandwriting(View)
* @param user UserHandle to query.
* @hide
*/
@NonNull
@RequiresPermission(value = Manifest.permission.INTERACT_ACROSS_USERS_FULL, conditional = true)
@TestApi
@SuppressLint("UserHandle")
public boolean isStylusHandwritingAvailableAsUser(@NonNull UserHandle user) {
final Context fallbackContext = ActivityThread.currentApplication();
if (fallbackContext == null) {
return false;
}
boolean isAvailable;
synchronized (mH) {
if (mStylusHandwritingAvailableCache == null) {
mStylusHandwritingAvailableCache = new PropertyInvalidatedCache<>(
4 /* maxEntries */, CACHE_KEY_STYLUS_HANDWRITING_PROPERTY) {
@Override
public Boolean recompute(Integer userId) {
return IInputMethodManagerGlobalInvoker.isStylusHandwritingAvailableAsUser(
userId, /* connectionless= */ false);
}
};
}
isAvailable = mStylusHandwritingAvailableCache.query(user.getIdentifier());
}
return isAvailable;
}
/**
* Returns {@code true} if the currently selected IME supports connectionless stylus handwriting
* sessions and is enabled.
*/
@FlaggedApi(Flags.FLAG_CONNECTIONLESS_HANDWRITING)
public boolean isConnectionlessStylusHandwritingAvailable() {
if (ActivityThread.currentApplication() == null) {
return false;
}
synchronized (mH) {
if (mConnectionlessStylusHandwritingAvailableCache == null) {
mConnectionlessStylusHandwritingAvailableCache = new PropertyInvalidatedCache<>(
/* maxEntries= */ 4, CACHE_KEY_CONNECTIONLESS_STYLUS_HANDWRITING_PROPERTY) {
@Override
public Boolean recompute(@NonNull Integer userId) {
return IInputMethodManagerGlobalInvoker.isStylusHandwritingAvailableAsUser(
userId, /* connectionless= */ true);
}
};
}
return mConnectionlessStylusHandwritingAvailableCache.query(UserHandle.myUserId());
}
}
/**
* Returns the list of installed input methods for the specified user.
*
* {@link Manifest.permission#INTERACT_ACROSS_USERS_FULL} is required when and only when
* {@code userId} is different from the user id of the current process.
*
* @param userId user ID to query
* @return {@link List} of {@link InputMethodInfo}.
* @hide
*/
@TestApi
@NonNull
@RequiresPermission(value = Manifest.permission.INTERACT_ACROSS_USERS_FULL, conditional = true)
public List getInputMethodListAsUser(@UserIdInt int userId) {
return IInputMethodManagerGlobalInvoker.getInputMethodList(userId,
DirectBootAwareness.AUTO);
}
/**
* Returns the list of installed input methods for the specified user.
*
* {@link Manifest.permission#INTERACT_ACROSS_USERS_FULL} is required when and only when
* {@code userId} is different from the user id of the current process.
*
* @param userId user ID to query
* @param directBootAwareness {@code true} if caller want to query installed input methods list
* on user locked state.
* @return {@link List} of {@link InputMethodInfo}.
* @hide
*/
@NonNull
@RequiresPermission(value = Manifest.permission.INTERACT_ACROSS_USERS_FULL, conditional = true)
public List getInputMethodListAsUser(@UserIdInt int userId,
@DirectBootAwareness int directBootAwareness) {
return IInputMethodManagerGlobalInvoker.getInputMethodList(userId, directBootAwareness);
}
/**
* Returns the {@link InputMethodInfo} of the currently selected input method (for the process's
* user).
*
* On multi user environment, this API returns a result for the calling process user.
*/
@Nullable
public InputMethodInfo getCurrentInputMethodInfo() {
// We intentionally do not use UserHandle.getCallingUserId() here because for system
// services InputMethodManagerInternal.getCurrentInputMethodInfoForUser() should be used
// instead.
return IInputMethodManagerGlobalInvoker.getCurrentInputMethodInfoAsUser(
UserHandle.myUserId());
}
/**
* Returns the {@link InputMethodInfo} for currently selected input method for the given user.
*
* @param user user to query.
* @hide
*/
@RequiresPermission(value = Manifest.permission.INTERACT_ACROSS_USERS_FULL)
@Nullable
@SystemApi
@SuppressLint("UserHandle")
public InputMethodInfo getCurrentInputMethodInfoAsUser(@NonNull UserHandle user) {
Objects.requireNonNull(user);
return IInputMethodManagerGlobalInvoker.getCurrentInputMethodInfoAsUser(
user.getIdentifier());
}
/**
* Returns the list of enabled input methods.
*
* On multi user environment, this API returns a result for the calling process user.
*
* @return {@link List} of {@link InputMethodInfo}.
*/
@NonNull
public List getEnabledInputMethodList() {
// We intentionally do not use UserHandle.getCallingUserId() here because for system
// services InputMethodManagerInternal.getEnabledInputMethodListAsUser() should be used
// instead.
return IInputMethodManagerGlobalInvoker.getEnabledInputMethodList(UserHandle.myUserId());
}
/**
* Returns the list of enabled input methods for the specified user.
*
* {@link Manifest.permission#INTERACT_ACROSS_USERS_FULL} is required when and only when
* {@code user} is different from the user of the current process.
*
* @param user UserHandle to query
* @return {@link List} of {@link InputMethodInfo}.
* @see #getEnabledInputMethodSubtypeListAsUser(String, boolean, UserHandle)
* @hide
*/
@NonNull
@RequiresPermission(value = Manifest.permission.INTERACT_ACROSS_USERS_FULL, conditional = true)
@TestApi
@SuppressLint("UserHandle")
public List getEnabledInputMethodListAsUser(@NonNull UserHandle user) {
return IInputMethodManagerGlobalInvoker.getEnabledInputMethodList(user.getIdentifier());
}
/**
* Returns a list of enabled input method subtypes for the specified input method info.
*
* On multi user environment, this API returns a result for the calling process user.
*
* @param imi The {@link InputMethodInfo} whose subtypes list will be returned. If {@code null},
* returns enabled subtypes for the currently selected {@link InputMethodInfo}.
* @param allowsImplicitlyEnabledSubtypes A boolean flag to allow to return the implicitly
* enabled subtypes. If an input method info doesn't have enabled subtypes, the framework
* will implicitly enable subtypes according to the current system language.
*/
@NonNull
public List getEnabledInputMethodSubtypeList(@Nullable InputMethodInfo imi,
boolean allowsImplicitlyEnabledSubtypes) {
return IInputMethodManagerGlobalInvoker.getEnabledInputMethodSubtypeList(
imi == null ? null : imi.getId(),
allowsImplicitlyEnabledSubtypes,
UserHandle.myUserId());
}
/**
* Returns a list of enabled input method subtypes for the specified input method info for the
* specified user.
*
* @param imeId IME ID to be queried about.
* @param allowsImplicitlyEnabledSubtypes {@code true} to include implicitly enabled subtypes.
* @param user UserHandle to be queried about.
* {@link Manifest.permission#INTERACT_ACROSS_USERS_FULL} is required if this is
* different from the calling process user ID.
* @return {@link List} of {@link InputMethodSubtype}.
* @see #getEnabledInputMethodListAsUser(UserHandle)
* @hide
*/
@NonNull
@RequiresPermission(value = Manifest.permission.INTERACT_ACROSS_USERS_FULL, conditional = true)
@TestApi
@SuppressLint("UserHandle")
public List getEnabledInputMethodSubtypeListAsUser(
@NonNull String imeId, boolean allowsImplicitlyEnabledSubtypes,
@NonNull UserHandle user) {
return IInputMethodManagerGlobalInvoker.getEnabledInputMethodSubtypeList(
Objects.requireNonNull(imeId), allowsImplicitlyEnabledSubtypes,
user.getIdentifier());
}
/**
* @deprecated Use {@link InputMethodService#showStatusIcon(int)} instead. This method was
* intended for IME developers who should be accessing APIs through the service. APIs in this
* class are intended for app developers interacting with the IME.
*/
@Deprecated
public void showStatusIcon(IBinder imeToken, String packageName, @DrawableRes int iconId) {
InputMethodPrivilegedOperationsRegistry.get(
imeToken).updateStatusIconAsync(packageName, iconId);
}
/**
* @deprecated Use {@link InputMethodService#hideStatusIcon()} instead. This method was
* intended for IME developers who should be accessing APIs through the service. APIs in
* this class are intended for app developers interacting with the IME.
*/
@Deprecated
public void hideStatusIcon(IBinder imeToken) {
InputMethodPrivilegedOperationsRegistry.get(imeToken).updateStatusIconAsync(null, 0);
}
/**
* This hidden API is deprecated in {@link android.os.Build.VERSION_CODES#Q}. Does nothing.
*
* @param spans will be ignored.
*
* @deprecated Do not use.
* @hide
*/
@Deprecated
@UnsupportedAppUsage
public void registerSuggestionSpansForNotification(SuggestionSpan[] spans) {
Log.w(TAG, "registerSuggestionSpansForNotification() is deprecated. Does nothing.");
}
/**
* This hidden API is deprecated in {@link android.os.Build.VERSION_CODES#Q}. Does nothing.
*
* @deprecated Do not use.
* @hide
*/
@Deprecated
@UnsupportedAppUsage
public void notifySuggestionPicked(SuggestionSpan span, String originalString, int index) {
Log.w(TAG, "notifySuggestionPicked() is deprecated. Does nothing.");
}
/**
* Allows you to discover whether the attached input method is running
* in fullscreen mode. Return true if it is fullscreen, entirely covering
* your UI, else returns false.
*/
public boolean isFullscreenMode() {
synchronized (mH) {
return mFullscreenMode;
}
}
/**
* Return {@code true} if the given view is the currently active view for the input method.
*/
public boolean isActive(View view) {
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
return fallbackImm.isActive(view);
}
checkFocus();
synchronized (mH) {
return hasServedByInputMethodLocked(view) && mCurrentEditorInfo != null;
}
}
/**
* Return {@code true} if any view is currently active for the input method.
*/
public boolean isActive() {
checkFocus();
synchronized (mH) {
return getServedViewLocked() != null && mCurrentEditorInfo != null;
}
}
/**
* Returns {@code true} if the given view's {@link ViewRootImpl} is the currently active one
* for the {@code InputMethodManager}.
*
* @hide
*/
@TestApi
@RequiresPermission(Manifest.permission.TEST_INPUT_METHOD)
public boolean isCurrentRootView(@NonNull View attachedView) {
synchronized (mH) {
return mCurRootView == attachedView.getViewRootImpl();
}
}
/**
* Return {@code true} if the currently served view is accepting full text edits.
* If {@code false}, it has no input connection, so it can only handle raw key events.
*/
public boolean isAcceptingText() {
checkFocus();
synchronized (mH) {
return mServedInputConnection != null;
}
}
/**
* Return {@code true} if the input method is suppressing system spell checker.
*/
public boolean isInputMethodSuppressingSpellChecker() {
synchronized (mH) {
return mCurBindState != null
&& mCurBindState.mIsInputMethodSuppressingSpellChecker;
}
}
/**
* Reset all of the state associated with being bound to an input method.
*/
@GuardedBy("mH")
private void clearBindingLocked() {
if (DEBUG) Log.v(TAG, "Clearing binding!");
clearConnectionLocked();
updateInputChannelLocked(null);
mCurId = null; // for @UnsupportedAppUsage
mCurMethod = null; // for @UnsupportedAppUsage
// We only reset sequence number for input method, but not accessibility.
mCurBindState = null;
}
/**
* Reset all of the state associated with being bound to an accessibility service.
*/
@GuardedBy("mH")
private void clearAccessibilityBindingLocked(int id) {
if (DEBUG) Log.v(TAG, "Clearing accessibility binding " + id);
mAccessibilityInputMethodSession.remove(id);
}
/**
* Reset all of the state associated with being bound to all accessibility services.
*/
@GuardedBy("mH")
private void clearAllAccessibilityBindingLocked() {
if (DEBUG) Log.v(TAG, "Clearing all accessibility bindings");
mAccessibilityInputMethodSession.clear();
}
@GuardedBy("mH")
private void updateInputChannelLocked(InputChannel channel) {
if (areSameInputChannel(mCurChannel, channel)) {
return;
}
// TODO(b/238720598) : Requirements when design a new protocol for InputChannel
// channel is a dupe of 'mCurChannel', because they have the same token, and represent
// the same connection. Ignore the incoming channel and keep using 'mCurChannel' to
// avoid confusing the InputEventReceiver.
if (mCurSender != null) {
flushPendingEventsLocked();
mCurSender.dispose();
mCurSender = null;
}
if (mCurChannel != null) {
mCurChannel.dispose();
}
mCurChannel = channel;
}
private static boolean areSameInputChannel(@Nullable InputChannel lhs,
@Nullable InputChannel rhs) {
if (lhs == rhs) {
return true;
}
if (lhs == null || rhs == null) {
return false;
}
return lhs.getToken() == rhs.getToken();
}
/**
* Reset all of the state associated with a served view being connected
* to an input method
*/
@GuardedBy("mH")
private void clearConnectionLocked() {
mCurrentEditorInfo = null;
mPreviousViewFocusParameters = null;
if (mServedInputConnection != null) {
mServedInputConnection.deactivate();
mServedInputConnection = null;
mServedInputConnectionHandler = null;
}
}
/**
* Disconnect any existing input connection, clearing the served view.
*/
@UnsupportedAppUsage
@GuardedBy("mH")
void finishInputLocked() {
View clearedView = null;
mNextServedView = null;
if (mServedView != null) {
clearedView = mServedView;
mServedView = null;
if (initiationWithoutInputConnection() && clearedView.getViewRootImpl() != null) {
clearedView.getViewRootImpl().getHandwritingInitiator()
.clearFocusedView(clearedView);
}
}
if (clearedView != null) {
if (DEBUG) {
Log.v(TAG, "FINISH INPUT: mServedView="
+ InputMethodDebug.dumpViewInfo(clearedView));
}
mCompletions = null;
mServedConnecting = false;
clearConnectionLocked();
}
mReportInputConnectionOpenedRunner = null;
// Clear the back callbacks held by the ime dispatcher to avoid memory leaks.
mImeDispatcher.clear();
}
/**
* Clears the {@link #mCurRootView} if it's no longer window focused and the connection is
* no longer active.
*
* @return {@code} true iff it was cleared.
*/
@GuardedBy("mH")
private boolean clearCurRootViewIfNeeded() {
if (!mActive && !mCurRootViewWindowFocused) {
finishInputLocked();
mDelegate.setCurrentRootViewLocked(null);
return true;
}
return false;
}
public void displayCompletions(View view, CompletionInfo[] completions) {
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
fallbackImm.displayCompletions(view, completions);
return;
}
checkFocus();
synchronized (mH) {
if (!hasServedByInputMethodLocked(view)) {
return;
}
mCompletions = completions;
if (isImeSessionAvailableLocked()) {
mCurBindState.mImeSession.displayCompletions(mCompletions);
}
}
}
public void updateExtractedText(View view, int token, ExtractedText text) {
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
fallbackImm.updateExtractedText(view, token, text);
return;
}
checkFocus();
synchronized (mH) {
if (!hasServedByInputMethodLocked(view)) {
return;
}
if (isImeSessionAvailableLocked()) {
mCurBindState.mImeSession.updateExtractedText(token, text);
}
}
}
/** @hide */
@IntDef(flag = true, prefix = { "SHOW_" }, value = {
SHOW_IMPLICIT,
SHOW_FORCED,
})
@Retention(RetentionPolicy.SOURCE)
public @interface ShowFlags {}
/**
* Flag for {@link #showSoftInput} to indicate that this is an implicit
* request to show the input window, not as the result of a direct request
* by the user. The window may not be shown in this case.
*/
public static final int SHOW_IMPLICIT = 0x0001;
/**
* Flag for {@link #showSoftInput} to indicate that the user has forced
* the input method open (such as by long-pressing menu) so it should
* not be closed until they explicitly do so.
*
* @deprecated Use {@link #showSoftInput} without this flag instead. Using this flag can lead
* to the soft input remaining visible even when the calling application is closed. The
* use of this flag can make the soft input remain visible globally. Starting in
* {@link Build.VERSION_CODES#TIRAMISU Android T}, this flag only has an effect while the
* caller is currently focused.
*/
@Deprecated
public static final int SHOW_FORCED = 0x0002;
/**
* Synonym for {@link #showSoftInput(View, int, ResultReceiver)} without
* a result receiver: explicitly request that the current input method's
* soft input area be shown to the user, if needed.
*
* @param view The currently focused view, which would like to receive soft keyboard input.
* Note that this view is only considered focused here if both it itself has
* {@link View#isFocused view focus}, and its containing window has
* {@link View#hasWindowFocus window focus}. Otherwise the call fails and
* returns {@code false}.
*/
public boolean showSoftInput(View view, @ShowFlags int flags) {
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
return fallbackImm.showSoftInput(view, flags);
}
return showSoftInput(view, flags, null);
}
/**
* Flag for the {@link ResultReceiver} result code from
* {@link #showSoftInput(View, int, ResultReceiver)} and
* {@link #hideSoftInputFromWindow(IBinder, int, ResultReceiver)}: the
* state of the soft input window was unchanged and remains shown.
*/
public static final int RESULT_UNCHANGED_SHOWN = 0;
/**
* Flag for the {@link ResultReceiver} result code from
* {@link #showSoftInput(View, int, ResultReceiver)} and
* {@link #hideSoftInputFromWindow(IBinder, int, ResultReceiver)}: the
* state of the soft input window was unchanged and remains hidden.
*/
public static final int RESULT_UNCHANGED_HIDDEN = 1;
/**
* Flag for the {@link ResultReceiver} result code from
* {@link #showSoftInput(View, int, ResultReceiver)} and
* {@link #hideSoftInputFromWindow(IBinder, int, ResultReceiver)}: the
* state of the soft input window changed from hidden to shown.
*/
public static final int RESULT_SHOWN = 2;
/**
* Flag for the {@link ResultReceiver} result code from
* {@link #showSoftInput(View, int, ResultReceiver)} and
* {@link #hideSoftInputFromWindow(IBinder, int, ResultReceiver)}: the
* state of the soft input window changed from shown to hidden.
*/
public static final int RESULT_HIDDEN = 3;
/**
* Explicitly request that the current input method's soft input area be
* shown to the user, if needed. Call this if the user interacts with
* your view in such a way that they have expressed they would like to
* start performing input into it.
*
* Caveat: {@link ResultReceiver} instance passed to
* this method can be a long-lived object, because it may not be
* garbage-collected until all the corresponding {@link ResultReceiver}
* objects transferred to different processes get garbage-collected.
* Follow the general patterns to avoid memory leaks in Android.
* Consider to use {@link java.lang.ref.WeakReference} so that application
* logic objects such as {@link android.app.Activity} and {@link Context}
* can be garbage collected regardless of the lifetime of
* {@link ResultReceiver}.
*
* @param view The currently focused view, which would like to receive soft keyboard input.
* Note that this view is only considered focused here if both it itself has
* {@link View#isFocused view focus}, and its containing window has
* {@link View#hasWindowFocus window focus}. Otherwise the call fails and
* returns {@code false}.
* @param resultReceiver If non-null, this will be called by the IME when
* it has processed your request to tell you what it has done. The result
* code you receive may be either {@link #RESULT_UNCHANGED_SHOWN},
* {@link #RESULT_UNCHANGED_HIDDEN}, {@link #RESULT_SHOWN}, or
* {@link #RESULT_HIDDEN}.
*/
public boolean showSoftInput(View view, @ShowFlags int flags, ResultReceiver resultReceiver) {
return showSoftInput(view, flags, resultReceiver, SoftInputShowHideReason.SHOW_SOFT_INPUT);
}
private boolean showSoftInput(View view, @ShowFlags int flags,
@Nullable ResultReceiver resultReceiver, @SoftInputShowHideReason int reason) {
// TODO(b/303041796): handle tracking physical keyboard and DPAD as user interactions
final var statsToken = ImeTracker.forLogging().onStart(ImeTracker.TYPE_SHOW,
ImeTracker.ORIGIN_CLIENT, reason, ImeTracker.isFromUser(view));
return showSoftInput(view, statsToken, flags, resultReceiver, reason);
}
private boolean showSoftInput(View view, @NonNull ImeTracker.Token statsToken,
@ShowFlags int flags, @Nullable ResultReceiver resultReceiver,
@SoftInputShowHideReason int reason) {
ImeTracker.forLatency().onRequestShow(statsToken,
ImeTracker.ORIGIN_CLIENT, reason, ActivityThread::currentApplication);
ImeTracing.getInstance().triggerClientDump("InputMethodManager#showSoftInput", this,
null /* icProto */);
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
return fallbackImm.showSoftInput(view, statsToken, flags, resultReceiver, reason);
}
checkFocus();
synchronized (mH) {
if (!hasServedByInputMethodLocked(view)) {
ImeTracker.forLogging().onFailed(statsToken, ImeTracker.PHASE_CLIENT_VIEW_SERVED);
ImeTracker.forLatency().onShowFailed(statsToken,
ImeTracker.PHASE_CLIENT_VIEW_SERVED, ActivityThread::currentApplication);
Log.w(TAG, "Ignoring showSoftInput() as view=" + view + " is not served.");
return false;
}
ImeTracker.forLogging().onProgress(statsToken, ImeTracker.PHASE_CLIENT_VIEW_SERVED);
if (Flags.refactorInsetsController()) {
// In case of a running show IME animation, it should not be requested visible,
// otherwise the animation would jump and not be controlled by the user anymore
if ((mCurRootView.getInsetsController().computeUserAnimatingTypes()
& WindowInsets.Type.ime()) == 0) {
// TODO(b/322992891) handle case of SHOW_IMPLICIT
view.getWindowInsetsController().show(WindowInsets.Type.ime());
return true;
} else {
return false;
}
} else {
// Makes sure to call ImeInsetsSourceConsumer#onShowRequested on the UI thread.
// TODO(b/229426865): call WindowInsetsController#show instead.
mH.executeOrSendMessage(Message.obtain(mH, MSG_ON_SHOW_REQUESTED));
Log.d(TAG, "showSoftInput() view=" + view + " flags=" + flags + " reason="
+ InputMethodDebug.softInputDisplayReasonToString(reason));
return IInputMethodManagerGlobalInvoker.showSoftInput(
mClient,
view.getWindowToken(),
statsToken,
flags,
mCurRootView.getLastClickToolType(),
resultReceiver,
reason);
}
}
}
/**
* This method is still kept for a while until androidx.appcompat.widget.SearchView ver. 26.0
* is publicly released because previous implementations of that class had relied on this method
* via reflection.
*
* @deprecated This is a hidden API. You should never use this.
* @hide
*/
@Deprecated
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 123768499)
public void showSoftInputUnchecked(@ShowFlags int flags, ResultReceiver resultReceiver) {
synchronized (mH) {
final int reason = SoftInputShowHideReason.SHOW_SOFT_INPUT;
final var statsToken = ImeTracker.forLogging().onStart(ImeTracker.TYPE_SHOW,
ImeTracker.ORIGIN_CLIENT, reason, false /* fromUser */);
Log.w(TAG, "showSoftInputUnchecked() is a hidden method, which will be"
+ " removed soon. If you are using androidx.appcompat.widget.SearchView,"
+ " please update to version 26.0 or newer version.");
final View rootView = mCurRootView != null ? mCurRootView.getView() : null;
if (rootView == null) {
ImeTracker.forLogging().onFailed(statsToken, ImeTracker.PHASE_CLIENT_VIEW_SERVED);
Log.w(TAG, "No current root view, ignoring showSoftInputUnchecked()");
return;
}
ImeTracker.forLogging().onProgress(statsToken, ImeTracker.PHASE_CLIENT_VIEW_SERVED);
// Makes sure to call ImeInsetsSourceConsumer#onShowRequested on the UI thread.
// TODO(b/229426865): call WindowInsetsController#show instead.
mH.executeOrSendMessage(Message.obtain(mH, MSG_ON_SHOW_REQUESTED));
IInputMethodManagerGlobalInvoker.showSoftInput(
mClient,
rootView.getWindowToken(),
statsToken,
flags,
mCurRootView.getLastClickToolType(),
resultReceiver,
reason);
}
}
/** @hide */
@IntDef(flag = true, prefix = { "HIDE_" }, value = {
HIDE_IMPLICIT_ONLY,
HIDE_NOT_ALWAYS,
})
@Retention(RetentionPolicy.SOURCE)
public @interface HideFlags {}
/**
* Flag for {@link #hideSoftInputFromWindow} and {@link InputMethodService#requestHideSelf(int)}
* to indicate that the soft input window should only be hidden if it was not explicitly shown
* by the user.
*/
public static final int HIDE_IMPLICIT_ONLY = 0x0001;
/**
* Flag for {@link #hideSoftInputFromWindow} and {@link InputMethodService#requestShowSelf(int)}
* to indicate that the soft input window should normally be hidden, unless it was originally
* shown with {@link #SHOW_FORCED}.
*/
public static final int HIDE_NOT_ALWAYS = 0x0002;
/**
* Synonym for {@link #hideSoftInputFromWindow(IBinder, int, ResultReceiver)}
* without a result: request to hide the soft input window from the
* context of the window that is currently accepting input.
*
* @param windowToken The token of the window that is making the request,
* as returned by {@link View#getWindowToken() View.getWindowToken()}.
*/
public boolean hideSoftInputFromWindow(IBinder windowToken, @HideFlags int flags) {
return hideSoftInputFromWindow(windowToken, flags, null);
}
/**
* Request to hide the soft input window from the context of the window
* that is currently accepting input. This should be called as a result
* of the user doing some actually than fairly explicitly requests to
* have the input window hidden.
*
*
Caveat: {@link ResultReceiver} instance passed to
* this method can be a long-lived object, because it may not be
* garbage-collected until all the corresponding {@link ResultReceiver}
* objects transferred to different processes get garbage-collected.
* Follow the general patterns to avoid memory leaks in Android.
* Consider to use {@link java.lang.ref.WeakReference} so that application
* logic objects such as {@link android.app.Activity} and {@link Context}
* can be garbage collected regardless of the lifetime of
* {@link ResultReceiver}.
*
* @param windowToken The token of the window that is making the request,
* as returned by {@link View#getWindowToken() View.getWindowToken()}.
* @param resultReceiver If non-null, this will be called by the IME when
* it has processed your request to tell you what it has done. The result
* code you receive may be either {@link #RESULT_UNCHANGED_SHOWN},
* {@link #RESULT_UNCHANGED_HIDDEN}, {@link #RESULT_SHOWN}, or
* {@link #RESULT_HIDDEN}.
*/
public boolean hideSoftInputFromWindow(IBinder windowToken, @HideFlags int flags,
ResultReceiver resultReceiver) {
return hideSoftInputFromWindow(windowToken, flags, resultReceiver,
SoftInputShowHideReason.HIDE_SOFT_INPUT);
}
private boolean hideSoftInputFromWindow(IBinder windowToken, @HideFlags int flags,
ResultReceiver resultReceiver, @SoftInputShowHideReason int reason) {
// Get served view initially for statsToken creation.
final View initialServedView;
synchronized (mH) {
initialServedView = getServedViewLocked();
}
final var statsToken = ImeTracker.forLogging().onStart(ImeTracker.TYPE_HIDE,
ImeTracker.ORIGIN_CLIENT, reason, ImeTracker.isFromUser(initialServedView));
ImeTracker.forLatency().onRequestHide(statsToken,
ImeTracker.ORIGIN_CLIENT, reason, ActivityThread::currentApplication);
ImeTracing.getInstance().triggerClientDump("InputMethodManager#hideSoftInputFromWindow",
this, null /* icProto */);
checkFocus();
synchronized (mH) {
// Get served view again in case it changed between the synchronized blocks.
final View servedView = getServedViewLocked();
if (servedView == null || servedView.getWindowToken() != windowToken) {
ImeTracker.forLogging().onFailed(statsToken, ImeTracker.PHASE_CLIENT_VIEW_SERVED);
ImeTracker.forLatency().onHideFailed(statsToken,
ImeTracker.PHASE_CLIENT_VIEW_SERVED, ActivityThread::currentApplication);
return false;
}
ImeTracker.forLogging().onProgress(statsToken, ImeTracker.PHASE_CLIENT_VIEW_SERVED);
if (Flags.refactorInsetsController()) {
// TODO(b/322992891) handle case of HIDE_IMPLICIT_ONLY
servedView.getWindowInsetsController().hide(WindowInsets.Type.ime());
return true;
} else {
return IInputMethodManagerGlobalInvoker.hideSoftInput(mClient, windowToken,
statsToken, flags, resultReceiver, reason);
}
}
}
/**
* Synonym for {@link #hideSoftInputFromWindow(IBinder, int)} but takes a {@link View} as a
* parameter to be a counterpart of {@link #showSoftInput(View, int)}.
*
* @param view {@link View} to be used to conditionally issue hide request when and only when
* this {@link View} is serving as an IME target.
* @hide
*/
public boolean hideSoftInputFromView(@NonNull View view, @HideFlags int flags) {
checkFocus();
final boolean isFocusedAndWindowFocused = view.hasWindowFocus() && view.isFocused();
synchronized (mH) {
final boolean hasServedByInputMethod = hasServedByInputMethodLocked(view);
if (!isFocusedAndWindowFocused && !hasServedByInputMethod) {
// Fail early if the view is not focused and not served
// to avoid logging many erroneous calls.
return false;
}
final int reason = SoftInputShowHideReason.HIDE_SOFT_INPUT_FROM_VIEW;
final var statsToken = ImeTracker.forLogging().onStart(ImeTracker.TYPE_HIDE,
ImeTracker.ORIGIN_CLIENT, reason, ImeTracker.isFromUser(view));
ImeTracker.forLatency().onRequestHide(statsToken,
ImeTracker.ORIGIN_CLIENT, reason, ActivityThread::currentApplication);
ImeTracing.getInstance().triggerClientDump("InputMethodManager#hideSoftInputFromView",
this, null /* icProto */);
if (!hasServedByInputMethod) {
ImeTracker.forLogging().onFailed(statsToken, ImeTracker.PHASE_CLIENT_VIEW_SERVED);
ImeTracker.forLatency().onShowFailed(statsToken,
ImeTracker.PHASE_CLIENT_VIEW_SERVED, ActivityThread::currentApplication);
Log.w(TAG, "Ignoring hideSoftInputFromView() as view=" + view + " is not served.");
return false;
}
ImeTracker.forLogging().onProgress(statsToken, ImeTracker.PHASE_CLIENT_VIEW_SERVED);
return IInputMethodManagerGlobalInvoker.hideSoftInput(mClient, view.getWindowToken(),
statsToken, flags, null, reason);
}
}
/**
* A test API for CTS to request hiding the current soft input window, with the request origin
* on the server side.
*
* @hide
*/
@SuppressLint("UnflaggedApi") // @TestApi without associated feature.
@TestApi
@RequiresPermission(Manifest.permission.TEST_INPUT_METHOD)
public void hideSoftInputFromServerForTest() {
IInputMethodManagerGlobalInvoker.hideSoftInputFromServerForTest();
}
/**
* Start stylus handwriting session.
*
* If supported by the current input method, a stylus handwriting session is started on the
* given View, capturing all stylus input and converting it to InputConnection commands.
*
* If handwriting mode is started successfully by the IME, any currently dispatched stylus
* pointers will be {@code android.view.MotionEvent#FLAG_CANCELED} cancelled.
*
* If Stylus handwriting mode is not supported or cannot be fulfilled for any reason by IME,
* request will be ignored and Stylus touch will continue as normal touch input. Ideally,
* {@link #isStylusHandwritingAvailable()} should be called first to determine if stylus
* handwriting is supported by IME.
*
* @param view the View for which stylus handwriting is requested. It and
* {@link View#hasWindowFocus its window} must be {@link View#hasFocus focused}.
* @see #isStylusHandwritingAvailable()
*/
public void startStylusHandwriting(@NonNull View view) {
startStylusHandwritingInternal(
view, /* delegatorPackageName= */ null, /* handwritingDelegateFlags= */ 0);
}
private void sendFailureCallback(@NonNull @CallbackExecutor Executor executor,
@NonNull Consumer callback) {
if (executor == null || callback == null) {
return;
}
executor.execute(() -> callback.accept(false));
}
private boolean startStylusHandwritingInternal(
@NonNull View view, @Nullable String delegatorPackageName,
@HandwritingDelegateFlags int handwritingDelegateFlags) {
return startStylusHandwritingInternal(
view, delegatorPackageName, handwritingDelegateFlags,
null /* executor */, null /* callback */);
}
private boolean startStylusHandwritingInternal(
@NonNull View view, @Nullable String delegatorPackageName,
@HandwritingDelegateFlags int handwritingDelegateFlags, Executor executor,
Consumer callback) {
Objects.requireNonNull(view);
boolean useCallback = callback != null;
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
fallbackImm.startStylusHandwritingInternal(
view, delegatorPackageName, handwritingDelegateFlags, executor, callback);
}
boolean useDelegation = !TextUtils.isEmpty(delegatorPackageName);
checkFocus();
synchronized (mH) {
if (!hasServedByInputMethodLocked(view)) {
Log.w(TAG,
"Ignoring startStylusHandwriting as view=" + view + " is not served.");
sendFailureCallback(executor, callback);
return false;
}
if (view.getViewRootImpl() != mCurRootView) {
Log.w(TAG,
"Ignoring startStylusHandwriting: View's window does not have focus.");
sendFailureCallback(executor, callback);
return false;
}
if (useDelegation) {
WeakReference executorRef = new WeakReference<>(executor);
WeakReference> callbackRef = new WeakReference<>(callback);
if (useCallback) {
IBooleanListener listener = new IBooleanListener.Stub() {
@Override
public void onResult(boolean value) {
Executor executor = executorRef.get();
Consumer callback = callbackRef.get();
if (executor != null && callback != null) {
executor.execute(() -> callback.accept(value));
}
}
};
if (!IInputMethodManagerGlobalInvoker.acceptStylusHandwritingDelegationAsync(
mClient, UserHandle.myUserId(), view.getContext().getOpPackageName(),
delegatorPackageName, handwritingDelegateFlags, listener)) {
sendFailureCallback(executor, callback);
}
return true;
} else {
return IInputMethodManagerGlobalInvoker.acceptStylusHandwritingDelegation(
mClient, UserHandle.myUserId(), view.getContext().getOpPackageName(),
delegatorPackageName, handwritingDelegateFlags);
}
} else {
IInputMethodManagerGlobalInvoker.startStylusHandwriting(mClient);
return false;
}
}
}
/**
* Starts a connectionless stylus handwriting session. A connectionless session differs from a
* regular stylus handwriting session in that the IME does not use an input connection to
* communicate with a text editor. Instead, the IME directly returns recognised handwritten text
* via a callback.
*
* The {code cursorAnchorInfo} may be used by the IME to improve the handwriting recognition
* accuracy and user experience of the handwriting session. Usually connectionless handwriting
* is used for a view which appears like a text editor but does not really support text editing.
* For best results, the {code cursorAnchorInfo} should be populated as it would be for a real
* text editor (for example, the insertion marker location can be set to where the user would
* expect it to be, even if there is no visible cursor).
*
* @param view the view receiving stylus events
* @param cursorAnchorInfo positional information about the view receiving stylus events
* @param callbackExecutor the executor to run the callback on
* @param callback the callback to receive the result
*/
@FlaggedApi(Flags.FLAG_CONNECTIONLESS_HANDWRITING)
public void startConnectionlessStylusHandwriting(@NonNull View view,
@Nullable CursorAnchorInfo cursorAnchorInfo,
@NonNull @CallbackExecutor Executor callbackExecutor,
@NonNull ConnectionlessHandwritingCallback callback) {
startConnectionlessStylusHandwritingInternal(
view, cursorAnchorInfo, null, null, callbackExecutor, callback);
}
/**
* Starts a connectionless stylus handwriting session (see {@link
* #startConnectionlessStylusHandwriting}) and additionally enables the recognised handwritten
* text to be later committed to a text editor using {@link
* #acceptStylusHandwritingDelegation(View)}.
*
*
After a connectionless session started using this method completes successfully, a text
* editor view, called the delegate view, may call {@link
* #acceptStylusHandwritingDelegation(View)} which will request the IME to commit the recognised
* handwritten text from the connectionless session to the delegate view.
*
*
The delegate view must belong to the same package as the delegator view for the delegation
* to succeed. If the delegate view belongs to a different package, use {@link
* #startConnectionlessStylusHandwritingForDelegation(View, CursorAnchorInfo, String, Executor,
* ConnectionlessHandwritingCallback)} instead.
*
* @param delegatorView the view receiving stylus events
* @param cursorAnchorInfo positional information about the view receiving stylus events
* @param callbackExecutor the executor to run the callback on
* @param callback the callback to receive the result
*/
@FlaggedApi(Flags.FLAG_CONNECTIONLESS_HANDWRITING)
public void startConnectionlessStylusHandwritingForDelegation(@NonNull View delegatorView,
@Nullable CursorAnchorInfo cursorAnchorInfo,
@NonNull @CallbackExecutor Executor callbackExecutor,
@NonNull ConnectionlessHandwritingCallback callback) {
String delegatorPackageName = delegatorView.getContext().getOpPackageName();
startConnectionlessStylusHandwritingInternal(delegatorView, cursorAnchorInfo,
delegatorPackageName, delegatorPackageName, callbackExecutor, callback);
}
/**
* Starts a connectionless stylus handwriting session (see {@link
* #startConnectionlessStylusHandwriting}) and additionally enables the recognised handwritten
* text to be later committed to a text editor using {@link
* #acceptStylusHandwritingDelegation(View, String)}.
*
*
After a connectionless session started using this method completes successfully, a text
* editor view, called the delegate view, may call {@link
* #acceptStylusHandwritingDelegation(View, String)} which will request the IME to commit the
* recognised handwritten text from the connectionless session to the delegate view.
*
*
The delegate view must belong to {@code delegatePackageName} for the delegation to
* succeed.
*
* @param delegatorView the view receiving stylus events
* @param cursorAnchorInfo positional information about the view receiving stylus events
* @param delegatePackageName name of the package containing the delegate view which will accept
* the delegation
* @param callbackExecutor the executor to run the callback on
* @param callback the callback to receive the result
*/
@FlaggedApi(Flags.FLAG_CONNECTIONLESS_HANDWRITING)
public void startConnectionlessStylusHandwritingForDelegation(@NonNull View delegatorView,
@Nullable CursorAnchorInfo cursorAnchorInfo,
@NonNull String delegatePackageName,
@NonNull @CallbackExecutor Executor callbackExecutor,
@NonNull ConnectionlessHandwritingCallback callback) {
Objects.requireNonNull(delegatePackageName);
String delegatorPackageName = delegatorView.getContext().getOpPackageName();
startConnectionlessStylusHandwritingInternal(delegatorView, cursorAnchorInfo,
delegatorPackageName, delegatePackageName, callbackExecutor, callback);
}
private void startConnectionlessStylusHandwritingInternal(@NonNull View view,
@Nullable CursorAnchorInfo cursorAnchorInfo,
@Nullable String delegatorPackageName,
@Nullable String delegatePackageName,
@NonNull @CallbackExecutor Executor callbackExecutor,
@NonNull ConnectionlessHandwritingCallback callback) {
Objects.requireNonNull(view);
Objects.requireNonNull(callbackExecutor);
Objects.requireNonNull(callback);
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
fallbackImm.startConnectionlessStylusHandwritingInternal(view, cursorAnchorInfo,
delegatorPackageName, delegatePackageName, callbackExecutor, callback);
}
checkFocus();
synchronized (mH) {
if (view.getViewRootImpl() != mCurRootView) {
Log.w(TAG, "Ignoring startConnectionlessStylusHandwriting: "
+ "View's window does not have focus.");
return;
}
IInputMethodManagerGlobalInvoker.startConnectionlessStylusHandwriting(
mClient, UserHandle.myUserId(), cursorAnchorInfo,
delegatePackageName, delegatorPackageName,
new ConnectionlessHandwritingCallbackProxy(callbackExecutor, callback));
}
}
/**
* Prepares delegation of starting stylus handwriting session to a different editor in same
* or different window than the view on which initial handwriting stroke was detected.
*
* Delegation can be used to start stylus handwriting session before the {@code Editor} view or
* its {@link InputConnection} is started. Calling this method starts buffering of stylus
* motion events until {@link #acceptStylusHandwritingDelegation(View)} is called, at which
* point the handwriting session can be started and the buffered stylus motion events will be
* delivered to the IME.
* e.g. Delegation can be used when initial handwriting stroke is
* on a pseudo {@code Editor} like widget (with no {@link InputConnection}) but actual
* {@code Editor} is on a different window.
*
*
Note: If an actual {@code Editor} capable of {@link InputConnection} is being scribbled
* upon using stylus, use {@link #startStylusHandwriting(View)} instead.
*
* @param delegatorView the view that receives initial stylus stroke and delegates it to the
* actual editor. Its window must {@link View#hasWindowFocus have focus}.
* @see #prepareStylusHandwritingDelegation(View, String)
* @see #acceptStylusHandwritingDelegation(View)
* @see #startStylusHandwriting(View)
*/
public void prepareStylusHandwritingDelegation(@NonNull View delegatorView) {
prepareStylusHandwritingDelegation(
delegatorView, delegatorView.getContext().getOpPackageName());
}
/**
* Prepares delegation of starting stylus handwriting session to a different editor in same or a
* different window in a different package than the view on which initial handwriting stroke
* was detected.
*
* Delegation can be used to start stylus handwriting session before the {@code Editor} view or
* its {@link InputConnection} is started. Calling this method starts buffering of stylus
* motion events until {@link #acceptStylusHandwritingDelegation(View, String)} is called, at
* which point the handwriting session can be started and the buffered stylus motion events will
* be delivered to the IME.
* e.g. Delegation can be used when initial handwriting stroke is
* on a pseudo {@code Editor} like widget (with no {@link InputConnection}) but actual
* {@code Editor} is on a different window in the given package.
*
* Note: If delegator and delegate are in same package use
* {@link #prepareStylusHandwritingDelegation(View)} instead.
*
* @param delegatorView the view that receives initial stylus stroke and delegates it to the
* actual editor. Its window must {@link View#hasWindowFocus have focus}.
* @param delegatePackageName package name that contains actual {@code Editor} which should
* start stylus handwriting session by calling {@link #acceptStylusHandwritingDelegation}.
* @see #prepareStylusHandwritingDelegation(View)
* @see #acceptStylusHandwritingDelegation(View, String)
*/
public void prepareStylusHandwritingDelegation(
@NonNull View delegatorView, @NonNull String delegatePackageName) {
Objects.requireNonNull(delegatorView);
Objects.requireNonNull(delegatePackageName);
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm =
getFallbackInputMethodManagerIfNecessary(delegatorView);
if (fallbackImm != null) {
fallbackImm.prepareStylusHandwritingDelegation(delegatorView, delegatePackageName);
}
IInputMethodManagerGlobalInvoker.prepareStylusHandwritingDelegation(
mClient,
UserHandle.myUserId(),
delegatePackageName,
delegatorView.getContext().getOpPackageName());
}
/**
* Accepts and starts a stylus handwriting session on the delegate view, if handwriting
* initiation delegation was previously requested using
* {@link #prepareStylusHandwritingDelegation(View)} from the delegator.
*
* Note: If delegator and delegate are in different application packages, use
* {@link #acceptStylusHandwritingDelegation(View, String)} instead.
*
* @param delegateView delegate view capable of receiving input via {@link InputConnection}
* @return {@code true} if view belongs to same application package as used in
* {@link #prepareStylusHandwritingDelegation(View)} and delegation is accepted
* @see #prepareStylusHandwritingDelegation(View)
* @see #acceptStylusHandwritingDelegation(View, String)
*/
// TODO(b/300979854): Once connectionless APIs are finalised, update documentation to add:
// Otherwise, if the delegator view previously started delegation using {@link
// #startConnectionlessStylusHandwritingForDelegation(View, ResultReceiver, CursorAnchorInfo)},
// requests the IME to commit the recognised handwritten text from the connectionless session to
// the delegate view.
// @see #startConnectionlessStylusHandwritingForDelegation(View, ResultReceiver,
// CursorAnchorInfo)
public boolean acceptStylusHandwritingDelegation(@NonNull View delegateView) {
return startStylusHandwritingInternal(
delegateView, delegateView.getContext().getOpPackageName(),
delegateView.getHandwritingDelegateFlags());
}
/**
* Accepts and starts a stylus handwriting session on the delegate view, if handwriting
* initiation delegation was previously requested using
* {@link #prepareStylusHandwritingDelegation(View, String)} from the delegator and the view
* belongs to a specified delegate package.
*
*
Note: If delegator and delegate are in the same application package, use
* {@link #acceptStylusHandwritingDelegation(View)} instead.
*
* @param delegateView delegate view capable of receiving input via {@link InputConnection}
* @param delegatorPackageName package name of the delegator that handled initial stylus stroke.
* @return {@code true} if view belongs to allowed delegate package declared in {@link
* #prepareStylusHandwritingDelegation(View, String)} and delegation is accepted
* @see #prepareStylusHandwritingDelegation(View, String)
* @see #acceptStylusHandwritingDelegation(View)
* TODO (b/293640003): deprecate this method once flag is enabled.
*/
// TODO(b/300979854): Once connectionless APIs are finalised, update documentation to add:
// Otherwise, if the delegator view previously started delegation using {@link
// #startConnectionlessStylusHandwritingForDelegation(View, ResultReceiver, CursorAnchorInfo,
// String)}, requests the IME to commit the recognised handwritten text from the connectionless
// session to the delegate view.
// @see #startConnectionlessStylusHandwritingForDelegation(View, ResultReceiver,
// CursorAnchorInfo, String)
public boolean acceptStylusHandwritingDelegation(
@NonNull View delegateView, @NonNull String delegatorPackageName) {
Objects.requireNonNull(delegatorPackageName);
return startStylusHandwritingInternal(
delegateView, delegatorPackageName, delegateView.getHandwritingDelegateFlags());
}
/**
* Accepts and starts a stylus handwriting session on the delegate view, if handwriting
* initiation delegation was previously requested using
* {@link #prepareStylusHandwritingDelegation(View, String)} from the delegator and the view
* belongs to a specified delegate package.
*
* @param delegateView delegate view capable of receiving input via {@link InputConnection}
* on which {@link #startStylusHandwriting(View)} will be called.
* @param delegatorPackageName package name of the delegator that handled initial stylus stroke.
* @param executor The executor to run the callback on.
* @param callback Consumer callback that provides {@code true} if view belongs to allowed
* delegate package declared in
* {@link #prepareStylusHandwritingDelegation(View, String)} and handwriting
* session can start.
* @see #prepareStylusHandwritingDelegation(View, String)
* @see #acceptStylusHandwritingDelegation(View)
*/
@FlaggedApi(Flags.FLAG_USE_ZERO_JANK_PROXY)
public void acceptStylusHandwritingDelegation(
@NonNull View delegateView, @NonNull String delegatorPackageName,
@NonNull @CallbackExecutor Executor executor, @NonNull Consumer callback) {
Objects.requireNonNull(delegatorPackageName);
int flags = 0;
if (Flags.homeScreenHandwritingDelegator()) {
flags = delegateView.getHandwritingDelegateFlags();
}
acceptStylusHandwritingDelegation(
delegateView, delegatorPackageName, flags, executor, callback);
}
/**
* Accepts and starts a stylus handwriting session on the delegate view, if handwriting
* initiation delegation was previously requested using {@link
* #prepareStylusHandwritingDelegation(View, String)} from the delegator and the view belongs to
* a specified delegate package.
*
* Note: If delegator and delegate are in the same application package, use {@link
* #acceptStylusHandwritingDelegation(View)} instead.
*
* @param delegateView delegate view capable of receiving input via {@link InputConnection}
* @param delegatorPackageName package name of the delegator that handled initial stylus stroke.
* @param flags {@link #HANDWRITING_DELEGATE_FLAG_HOME_DELEGATOR_ALLOWED} or {@code 0}
* @param executor The executor to run the callback on.
* @param callback {@code true>} would be received if delegation was accepted.
* @see #prepareStylusHandwritingDelegation(View, String)
* @see #acceptStylusHandwritingDelegation(View)
*/
// TODO(b/300979854): Once connectionless APIs are finalised, update documentation to add:
//
Otherwise, if the delegator view previously started delegation using {@link
// #startConnectionlessStylusHandwritingForDelegation(View, ResultReceiver, CursorAnchorInfo,
// String)}, requests the IME to commit the recognised handwritten text from the connectionless
// session to the delegate view.
// @see #startConnectionlessStylusHandwritingForDelegation(View, ResultReceiver,
// CursorAnchorInfo, String)
//
@FlaggedApi(FLAG_HOME_SCREEN_HANDWRITING_DELEGATOR)
public void acceptStylusHandwritingDelegation(
@NonNull View delegateView, @NonNull String delegatorPackageName,
@HandwritingDelegateFlags int flags, @NonNull @CallbackExecutor Executor executor,
@NonNull Consumer callback) {
Objects.requireNonNull(delegatorPackageName);
Objects.requireNonNull(delegateView);
Objects.requireNonNull(executor);
Objects.requireNonNull(callback);
startStylusHandwritingInternal(
delegateView, delegatorPackageName, flags, executor, callback);
}
/**
* This method toggles the input method window display.
* If the input window is already displayed, it gets hidden.
* If not the input window will be displayed.
* @param windowToken The token of the window that is making the request,
* as returned by {@link View#getWindowToken() View.getWindowToken()}.
*
* @deprecated Use {@link #showSoftInput(View, int)} or
* {@link #hideSoftInputFromWindow(IBinder, int)} explicitly instead.
* In particular during focus changes, the current visibility of the IME is not
* well defined. Starting in {@link Build.VERSION_CODES#S Android S}, this only
* has an effect if the calling app is the current IME focus.
*/
@Deprecated
public void toggleSoftInputFromWindow(IBinder windowToken, @ShowFlags int showFlags,
@HideFlags int hideFlags) {
ImeTracing.getInstance().triggerClientDump(
"InputMethodManager#toggleSoftInputFromWindow", InputMethodManager.this,
null /* icProto */);
synchronized (mH) {
final View servedView = getServedViewLocked();
if (servedView == null || servedView.getWindowToken() != windowToken) {
return;
}
toggleSoftInput(showFlags, hideFlags);
}
}
/**
* This method toggles the input method window display.
*
* If the input window is already displayed, it gets hidden.
* If not the input window will be displayed.
*
* @deprecated Use {@link #showSoftInput(View, int)} or
* {@link #hideSoftInputFromWindow(IBinder, int)} explicitly instead.
* In particular during focus changes, the current visibility of the IME is not
* well defined. Starting in {@link Build.VERSION_CODES#S Android S}, this only
* has an effect if the calling app is the current IME focus.
*/
@Deprecated
public void toggleSoftInput(@ShowFlags int showFlags, @HideFlags int hideFlags) {
ImeTracing.getInstance().triggerClientDump(
"InputMethodManager#toggleSoftInput", InputMethodManager.this,
null /* icProto */);
synchronized (mH) {
final View view = getServedViewLocked();
if (view != null) {
final WindowInsets rootInsets = view.getRootWindowInsets();
if (rootInsets != null && rootInsets.isVisible(WindowInsets.Type.ime())) {
hideSoftInputFromWindow(view.getWindowToken(), hideFlags,
null /* resultReceiver */,
SoftInputShowHideReason.HIDE_TOGGLE_SOFT_INPUT);
} else {
showSoftInput(view, showFlags, null /* resultReceiver */,
SoftInputShowHideReason.SHOW_TOGGLE_SOFT_INPUT);
}
}
}
}
/**
* If the input method is currently connected to the given view,
* restart it with its new contents. You should call this when the text
* within your view changes outside of the normal input method or key
* input flow, such as when an application calls TextView.setText().
*
* @param view The view whose text has changed.
*/
public void restartInput(View view) {
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
fallbackImm.restartInput(view);
return;
}
checkFocus();
synchronized (mH) {
if (!hasServedByInputMethodLocked(view)) {
return;
}
mServedConnecting = true;
}
startInputInner(StartInputReason.APP_CALLED_RESTART_INPUT_API, null, 0, 0, 0);
}
/**
* Sends an async signal to the IME to reset the currently served {@link InputConnection}.
*
* @param inputConnection the connection to be invalidated.
* @param textSnapshot {@link TextSnapshot} to be used to update {@link EditorInfo}.
* @param sessionId the session ID to be sent.
* @return {@code true} if the operation is done. {@code false} if the caller needs to fall back
* to {@link InputMethodManager#restartInput(View)}.
* @hide
*/
public boolean doInvalidateInput(@NonNull RemoteInputConnectionImpl inputConnection,
@NonNull TextSnapshot textSnapshot, int sessionId) {
synchronized (mH) {
if (mServedInputConnection != inputConnection || mCurrentEditorInfo == null) {
// OK to ignore because the calling InputConnection is already abandoned.
return true;
}
if (!isImeSessionAvailableLocked()) {
// IME is not yet bound to the client. Need to fall back to the restartInput().
return false;
}
final EditorInfo editorInfo = mCurrentEditorInfo.createCopyInternal();
editorInfo.initialSelStart = mCursorSelStart = textSnapshot.getSelectionStart();
editorInfo.initialSelEnd = mCursorSelEnd = textSnapshot.getSelectionEnd();
mCursorCandStart = textSnapshot.getCompositionStart();
mCursorCandEnd = textSnapshot.getCompositionEnd();
editorInfo.initialCapsMode = textSnapshot.getCursorCapsMode();
editorInfo.setInitialSurroundingTextInternal(textSnapshot.getSurroundingText());
mCurBindState.mImeSession.invalidateInput(editorInfo, mServedInputConnection,
sessionId);
final IRemoteAccessibilityInputConnection accessibilityInputConnection =
mServedInputConnection.asIRemoteAccessibilityInputConnection();
forAccessibilitySessionsLocked(wrapper -> wrapper.invalidateInput(editorInfo,
accessibilityInputConnection, sessionId));
return true;
}
}
/**
* Gives a hint to the system that the text associated with {@code view} is updated by something
* that is not an input method editor (IME), so that the system can cancel any pending text
* editing requests from the IME until it receives the new editing context such as surrounding
* text provided by {@link InputConnection#takeSnapshot()}.
*
* When {@code view} does not support {@link InputConnection#takeSnapshot()} protocol,
* calling this method may trigger {@link View#onCreateInputConnection(EditorInfo)}.
*
* Unlike {@link #restartInput(View)}, this API does not immediately interact with
* {@link InputConnection}. Instead, the application may later receive
* {@link InputConnection#takeSnapshot()} as needed so that the system can capture new editing
* context for the IME. For instance, successive invocations of this API can be coerced into a
* single (or zero) callback of {@link InputConnection#takeSnapshot()}.
*
* @param view The view whose text has changed.
* @see #restartInput(View)
*/
public void invalidateInput(@NonNull View view) {
Objects.requireNonNull(view);
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
fallbackImm.invalidateInput(view);
return;
}
synchronized (mH) {
if (mServedInputConnection == null || getServedViewLocked() != view) {
return;
}
mServedInputConnection.scheduleInvalidateInput();
}
}
/**
* Starts an input connection from the served view that gains the window focus.
* Note that this method should *NOT* be called inside of {@code mH} lock to prevent start input
* background thread may blocked by other methods which already inside {@code mH} lock.
*
* {@link Manifest.permission#INTERACT_ACROSS_USERS_FULL} is required when and only when
* {@code userId} is different from the user id of the current process.
*/
@RequiresPermission(value = Manifest.permission.INTERACT_ACROSS_USERS_FULL, conditional = true)
private boolean startInputInner(@StartInputReason int startInputReason,
@Nullable IBinder windowGainingFocus, @StartInputFlags int startInputFlags,
@SoftInputModeFlags int softInputMode, int windowFlags) {
final View view;
synchronized (mH) {
view = getServedViewLocked();
// Make sure we have a window token for the served view.
if (DEBUG) {
Log.v(TAG, "Starting input: view=" + InputMethodDebug.dumpViewInfo(view) +
" reason=" + InputMethodDebug.startInputReasonToString(startInputReason));
}
if (view == null) {
if (DEBUG) Log.v(TAG, "ABORT input: no served view!");
return false;
}
}
// Now we need to get an input connection from the served view.
// This is complicated in a couple ways: we can't be holding our lock
// when calling out to the view, and we need to make sure we call into
// the view on the same thread that is driving its view hierarchy.
Handler vh = view.getHandler();
if (vh == null) {
// If the view doesn't have a handler, something has changed out
// from under us, so just close the current input.
// If we don't close the current input, the current input method can remain on the
// screen without a connection.
if (DEBUG) Log.v(TAG, "ABORT input: no handler for view! Close current input.");
closeCurrentInput();
return false;
}
if (vh.getLooper() != Looper.myLooper()) {
// The view is running on a different thread than our own, so
// we need to reschedule our work for over there.
if (DEBUG) Log.v(TAG, "Starting input: reschedule to view thread");
vh.post(() -> startInputOnWindowFocusGainInternal(startInputReason, null, 0, 0, 0));
return false;
}
if (windowGainingFocus == null) {
windowGainingFocus = view.getWindowToken();
if (windowGainingFocus == null) {
Log.e(TAG, "ABORT input: ServedView must be attached to a Window");
return false;
}
startInputFlags = getStartInputFlags(view, startInputFlags);
softInputMode = view.getViewRootImpl().mWindowAttributes.softInputMode;
windowFlags = view.getViewRootImpl().mWindowAttributes.flags;
}
// Okay we are now ready to call into the served view and have it
// do its stuff.
// Life is good: let's hook everything up!
final Pair connectionPair = createInputConnection(view);
final InputConnection ic = connectionPair.first;
final EditorInfo editorInfo = connectionPair.second;
final Handler icHandler;
InputBindResult res = null;
final boolean hasServedView;
synchronized (mH) {
// Now that we are locked again, validate that our state hasn't
// changed.
final View servedView = getServedViewLocked();
if (servedView != view || !mServedConnecting) {
// Something else happened, so abort.
if (DEBUG) Log.v(TAG, "Starting input: finished by someone else."
+ " view=" + InputMethodDebug.dumpViewInfo(view)
+ " servedView=" + InputMethodDebug.dumpViewInfo(servedView)
+ " mServedConnecting=" + mServedConnecting);
if (mServedInputConnection != null && startInputReason == BOUND_TO_IMMS) {
// This is not an error. Once IME binds (MSG_BIND), InputConnection is fully
// established. So we report this to interested recipients.
reportInputConnectionOpened(
mServedInputConnection.getInputConnection(), mCurrentEditorInfo,
mServedInputConnectionHandler, view);
}
return false;
}
// If we already have a text box, then this view is already
// connected so we want to restart it.
if (mCurrentEditorInfo == null) {
startInputFlags |= StartInputFlags.INITIAL_CONNECTION;
}
editorInfo.setInitialToolType(mCurRootView.getLastClickToolType());
// Hook 'em up and let 'er rip.
mCurrentEditorInfo = editorInfo.createCopyInternal();
// Store the previously served connection so that we can determine whether it is safe
// to skip the call to startInputOrWindowGainedFocus in the IMMS
final RemoteInputConnectionImpl previouslyServedConnection = mServedInputConnection;
mServedConnecting = false;
if (mServedInputConnection != null) {
mServedInputConnection.deactivate();
mServedInputConnection = null;
mServedInputConnectionHandler = null;
}
final RemoteInputConnectionImpl servedInputConnection;
if (ic != null) {
mCursorSelStart = editorInfo.initialSelStart;
mCursorSelEnd = editorInfo.initialSelEnd;
mInitialSelStart = mCursorSelStart;
mInitialSelEnd = mCursorSelEnd;
mCursorCandStart = -1;
mCursorCandEnd = -1;
mCursorRect.setEmpty();
mCursorAnchorInfo = null;
Handler handler = null;
try {
handler = ic.getHandler();
} catch (AbstractMethodError ignored) {
// TODO(b/199934664): See if we can remove this by providing a default impl.
}
icHandler = handler;
mServedInputConnectionHandler = icHandler;
servedInputConnection = new RemoteInputConnectionImpl(
icHandler != null ? icHandler.getLooper() : vh.getLooper(), ic, this, view);
} else {
servedInputConnection = null;
icHandler = null;
mServedInputConnectionHandler = null;
}
mServedInputConnection = servedInputConnection;
if (DEBUG) {
Log.v(TAG, "START INPUT: view=" + InputMethodDebug.dumpViewInfo(view)
+ " ic=" + ic + " editorInfo=" + editorInfo + " startInputFlags="
+ InputMethodDebug.startInputFlagsToString(startInputFlags));
}
// When we switch between non-editable views, do not call into the IMMS.
final boolean canSkip = OPTIMIZE_NONEDITABLE_VIEWS
&& previouslyServedConnection == null
&& ic == null
&& isSwitchingBetweenEquivalentNonEditableViews(
mPreviousViewFocusParameters, startInputFlags,
startInputReason, softInputMode, windowFlags);
mPreviousViewFocusParameters = new ViewFocusParameterInfo(mCurrentEditorInfo,
startInputFlags, startInputReason, softInputMode, windowFlags);
if (canSkip) {
if (DEBUG) {
Log.d(TAG, "Not calling IMMS due to switching between non-editable views.");
}
return false;
}
final int targetUserId = editorInfo.targetInputMethodUser != null
? editorInfo.targetInputMethodUser.getIdentifier() : UserHandle.myUserId();
Trace.traceBegin(TRACE_TAG_WINDOW_MANAGER, "IMM.startInputOrWindowGainedFocus");
int startInputSeq = -1;
if (Flags.useZeroJankProxy()) {
// async result delivered via MSG_START_INPUT_RESULT.
startInputSeq = IInputMethodManagerGlobalInvoker.startInputOrWindowGainedFocusAsync(
startInputReason, mClient, windowGainingFocus, startInputFlags,
softInputMode, windowFlags, editorInfo, servedInputConnection,
servedInputConnection == null ? null
: servedInputConnection.asIRemoteAccessibilityInputConnection(),
view.getContext().getApplicationInfo().targetSdkVersion, targetUserId,
mImeDispatcher);
} else {
res = IInputMethodManagerGlobalInvoker.startInputOrWindowGainedFocus(
startInputReason, mClient, windowGainingFocus, startInputFlags,
softInputMode, windowFlags, editorInfo, servedInputConnection,
servedInputConnection == null ? null
: servedInputConnection.asIRemoteAccessibilityInputConnection(),
view.getContext().getApplicationInfo().targetSdkVersion, targetUserId,
mImeDispatcher);
}
Trace.traceEnd(TRACE_TAG_WINDOW_MANAGER);
if (Flags.useZeroJankProxy()) {
// Create a runnable for delayed notification to the app that the InputConnection is
// initialized and ready for use.
if (ic != null) {
final int seqId = startInputSeq;
mReportInputConnectionOpenedRunner =
new ReportInputConnectionOpenedRunner(startInputSeq) {
@Override
public void run() {
if (DEBUG) {
Log.v(TAG, "Calling View.onInputConnectionOpened: view= "
+ view
+ ", ic=" + ic + ", editorInfo=" + editorInfo
+ ", handler="
+ icHandler + ", startInputSeq=" + seqId);
}
reportInputConnectionOpened(ic, editorInfo, icHandler, view);
}
};
} else {
mReportInputConnectionOpenedRunner = null;
}
return true;
}
if (DEBUG) Log.v(TAG, "Starting input: Bind result=" + res);
if (res == null) {
Log.wtf(TAG, "startInputOrWindowGainedFocus must not return"
+ " null. startInputReason="
+ InputMethodDebug.startInputReasonToString(startInputReason)
+ " editorInfo=" + editorInfo
+ " startInputFlags="
+ InputMethodDebug.startInputFlagsToString(startInputFlags));
return false;
}
if (res.id != null) {
updateInputChannelLocked(res.channel);
mCurMethod = res.method; // for @UnsupportedAppUsage
mCurBindState = new BindState(res);
mAccessibilityInputMethodSession.clear();
if (res.accessibilitySessions != null) {
for (int i = 0; i < res.accessibilitySessions.size(); i++) {
IAccessibilityInputMethodSessionInvoker wrapper =
IAccessibilityInputMethodSessionInvoker.createOrNull(
res.accessibilitySessions.valueAt(i));
if (wrapper != null) {
mAccessibilityInputMethodSession.append(
res.accessibilitySessions.keyAt(i), wrapper);
}
}
}
mCurId = res.id; // for @UnsupportedAppUsage
} else if (res.channel != null && res.channel != mCurChannel) {
res.channel.dispose();
}
switch (res.result) {
case InputBindResult.ResultCode.ERROR_NOT_IME_TARGET_WINDOW:
mRestartOnNextWindowFocus = true;
if (initiationWithoutInputConnection()) {
mServedView.getViewRootImpl().getHandwritingInitiator().clearFocusedView(
mServedView);
}
mServedView = null;
break;
}
if (mCompletions != null) {
if (isImeSessionAvailableLocked()) {
mCurBindState.mImeSession.displayCompletions(mCompletions);
}
}
hasServedView = mServedView != null;
}
// Notify the app that the InputConnection is initialized and ready for use.
if (ic != null && res != null && res.method != null && hasServedView) {
if (DEBUG) {
Log.v(TAG, "Calling View.onInputConnectionOpened: view= " + view
+ ", ic=" + ic + ", editorInfo=" + editorInfo + ", handler=" + icHandler);
}
reportInputConnectionOpened(ic, editorInfo, icHandler, view);
}
return true;
}
/**
* @return {@code true} when we are switching focus between two non-editable views
* so that we can avoid calling {@link IInputMethodManager#startInputOrWindowGainedFocus}.
*/
@GuardedBy("mH")
private boolean isSwitchingBetweenEquivalentNonEditableViews(
@Nullable ViewFocusParameterInfo previousViewFocusParameters,
@StartInputFlags int startInputFlags,
@StartInputReason int startInputReason,
@SoftInputModeFlags int softInputMode,
int windowFlags) {
return (startInputFlags & StartInputFlags.WINDOW_GAINED_FOCUS) == 0
&& (startInputFlags & StartInputFlags.IS_TEXT_EDITOR) == 0
&& previousViewFocusParameters != null
&& previousViewFocusParameters.sameAs(mCurrentEditorInfo,
startInputFlags, startInputReason, softInputMode, windowFlags);
}
private void reportInputConnectionOpened(
InputConnection ic, EditorInfo editorInfo, Handler icHandler, View view) {
view.onInputConnectionOpenedInternal(ic, editorInfo, icHandler);
final ViewRootImpl viewRoot = view.getViewRootImpl();
if (viewRoot != null) {
viewRoot.getHandwritingInitiator().onInputConnectionCreated(view);
}
}
/**
*
* @hide
*/
@TestApi
@RequiresPermission(Manifest.permission.TEST_INPUT_METHOD)
public void addVirtualStylusIdForTestSession() {
synchronized (mH) {
IInputMethodManagerGlobalInvoker.addVirtualStylusIdForTestSession(mClient);
}
}
/**
* Set a stylus idle-timeout after which handwriting {@code InkWindow} will be removed.
* This API is for tests only.
* @param timeout to set in milliseconds. To reset to default, use a value <= zero.
* @hide
*/
@TestApi
@RequiresPermission(Manifest.permission.TEST_INPUT_METHOD)
public void setStylusWindowIdleTimeoutForTest(@DurationMillisLong long timeout) {
synchronized (mH) {
IInputMethodManagerGlobalInvoker.setStylusWindowIdleTimeoutForTest(mClient, timeout);
}
}
/**
* An empty method only to avoid crashes of apps that call this method via reflection and do not
* handle {@link NoSuchMethodException} in a graceful manner.
*
* @deprecated This is an empty method. No framework method must call this method.
* @hide
*/
@Deprecated
@UnsupportedAppUsage(trackingBug = 37122102, maxTargetSdk = Build.VERSION_CODES.Q,
publicAlternatives = "{@code androidx.activity.ComponentActivity}")
public void windowDismissed(IBinder appWindowToken) {
// Intentionally empty.
//
// It seems that some applications call this method via reflection to null clear the
// following fields that used to exist in InputMethodManager:
// * InputMethodManager#mCurRootView
// * InputMethodManager#mServedView
// * InputMethodManager#mNextServedView
// so that these objects can be garbage-collected when an Activity gets dismissed.
//
// It is indeed true that older versions of InputMethodManager had issues that prevented
// these fields from being null-cleared when it should have been, but the understanding of
// the engineering team is that all known issues have already been fixed as of Android 10.
//
// For older devices, developers can work around the object leaks by using
// androidx.activity.ComponentActivity.
// See https://issuetracker.google.com/u/1/issues/37122102 for details.
//
// If you believe InputMethodManager is leaking objects in API 24 or any later version,
// please file a bug at https://issuetracker.google.com/issues/new?component=192705.
}
private int getStartInputFlags(View focusedView, int startInputFlags) {
startInputFlags |= StartInputFlags.VIEW_HAS_FOCUS;
if (focusedView.onCheckIsTextEditor()) {
startInputFlags |= StartInputFlags.IS_TEXT_EDITOR;
}
return startInputFlags;
}
/**
* Note that this method should *NOT* be called inside of {@code mH} lock to prevent start input
* background thread may blocked by other methods which already inside {@code mH} lock.
* @hide
*/
@UnsupportedAppUsage
public void checkFocus() {
synchronized (mH) {
if (mCurRootView == null) {
return;
}
if (!checkFocusInternalLocked(false /* forceNewFocus */, mCurRootView)) {
return;
}
}
startInputOnWindowFocusGainInternal(StartInputReason.CHECK_FOCUS,
null /* focusedView */,
0 /* startInputFlags */, 0 /* softInputMode */, 0 /* windowFlags */);
}
/**
* Check the next served view if needs to start input.
*/
@GuardedBy("mH")
private boolean checkFocusInternalLocked(boolean forceNewFocus, ViewRootImpl viewRootImpl) {
if (mCurRootView != viewRootImpl) {
return false;
}
if (mServedView == mNextServedView && !forceNewFocus) {
return false;
}
if (DEBUG) {
Log.v(TAG, "checkFocus: view=" + mServedView
+ " next=" + mNextServedView
+ " force=" + forceNewFocus
+ " package="
+ (mServedView != null ? mServedView.getContext().getPackageName()
: ""));
}
// Close the connection when no next served view coming.
if (mNextServedView == null) {
finishInputLocked();
closeCurrentInput();
return false;
}
mServedView = mNextServedView;
if (mServedInputConnection != null) {
mServedInputConnection.finishComposingTextFromImm();
}
return true;
}
@UiThread
private void onViewFocusChangedInternal(@Nullable View view, boolean hasFocus) {
if (view == null || view.isTemporarilyDetached()) {
return;
}
final ViewRootImpl viewRootImpl = view.getViewRootImpl();
synchronized (mH) {
if (mCurRootView != viewRootImpl) {
return;
}
if (!view.hasImeFocus() || !view.hasWindowFocus()) {
return;
}
if (DEBUG) {
Log.d(TAG, "onViewFocusChangedInternal, view="
+ InputMethodDebug.dumpViewInfo(view));
}
// We don't need to track the next served view when the view lost focus here
// because:
// 1) The current view focus may be cleared temporary when in touch mode, closing
// input at this moment isn't the right way.
// 2) We only care about the served view change when it focused, since changing
// input connection when the focus target changed is reasonable.
// 3) Setting the next served view as null when no more served view should be
// handled in other special events (e.g. view detached from window or the window
// dismissed).
if (hasFocus) {
mNextServedView = view;
}
}
viewRootImpl.dispatchCheckFocus();
}
@UnsupportedAppUsage
void closeCurrentInput() {
final int reason = SoftInputShowHideReason.HIDE_CLOSE_CURRENT_SESSION;
final var statsToken = ImeTracker.forLogging().onStart(ImeTracker.TYPE_HIDE,
ImeTracker.ORIGIN_CLIENT, reason, false /* fromUser */);
ImeTracker.forLatency().onRequestHide(statsToken,
ImeTracker.ORIGIN_CLIENT, reason,
ActivityThread::currentApplication);
synchronized (mH) {
final View rootView = mCurRootView != null ? mCurRootView.getView() : null;
if (rootView == null) {
ImeTracker.forLogging().onFailed(statsToken, ImeTracker.PHASE_CLIENT_VIEW_SERVED);
ImeTracker.forLatency().onHideFailed(statsToken,
ImeTracker.PHASE_CLIENT_VIEW_SERVED, ActivityThread::currentApplication);
Log.w(TAG, "No current root view, ignoring closeCurrentInput()");
return;
}
ImeTracker.forLogging().onProgress(statsToken, ImeTracker.PHASE_CLIENT_VIEW_SERVED);
IInputMethodManagerGlobalInvoker.hideSoftInput(
mClient,
rootView.getWindowToken(),
statsToken,
HIDE_NOT_ALWAYS,
null,
reason);
}
}
/**
* Register for IME state callbacks and applying visibility in
* {@link android.view.ImeInsetsSourceConsumer}.
* @hide
*/
public void registerImeConsumer(@NonNull ImeInsetsSourceConsumer imeInsetsConsumer) {
if (imeInsetsConsumer == null) {
throw new IllegalStateException("ImeInsetsSourceConsumer cannot be null.");
}
synchronized (mH) {
mImeInsetsConsumer = imeInsetsConsumer;
}
}
/**
* Unregister for IME state callbacks and applying visibility in
* {@link android.view.ImeInsetsSourceConsumer}.
* @hide
*/
public void unregisterImeConsumer(@NonNull ImeInsetsSourceConsumer imeInsetsConsumer) {
if (imeInsetsConsumer == null) {
throw new IllegalStateException("ImeInsetsSourceConsumer cannot be null.");
}
synchronized (mH) {
if (mImeInsetsConsumer == imeInsetsConsumer) {
mImeInsetsConsumer = null;
}
}
}
/**
* Call showSoftInput with currently focused view.
*
* @param windowToken the window from which this request originates. If this doesn't match the
* currently served view, the request is ignored and returns {@code false}.
* @param statsToken the token tracking the current IME request.
*
* @return {@code true} if IME can (eventually) be shown, {@code false} otherwise.
* @hide
*/
public boolean requestImeShow(IBinder windowToken, @NonNull ImeTracker.Token statsToken) {
checkFocus();
synchronized (mH) {
final View servedView = getServedViewLocked();
if (servedView == null || servedView.getWindowToken() != windowToken) {
ImeTracker.forLogging().onFailed(statsToken,
ImeTracker.PHASE_CLIENT_REQUEST_IME_SHOW);
return false;
}
ImeTracker.forLogging().onProgress(statsToken,
ImeTracker.PHASE_CLIENT_REQUEST_IME_SHOW);
showSoftInput(servedView, statsToken, 0 /* flags */, null /* resultReceiver */,
SoftInputShowHideReason.SHOW_SOFT_INPUT_BY_INSETS_API);
return true;
}
}
/**
* Notify IMMS that IME insets are no longer visible.
*
* @param windowToken the window from which this request originates. If this doesn't match the
* currently served view, the request is ignored.
* @param statsToken the token tracking the current IME request.
* @hide
*/
public void notifyImeHidden(IBinder windowToken, @NonNull ImeTracker.Token statsToken) {
ImeTracker.forLatency().onRequestHide(statsToken, ImeTracker.ORIGIN_CLIENT,
SoftInputShowHideReason.HIDE_SOFT_INPUT_BY_INSETS_API,
ActivityThread::currentApplication);
ImeTracing.getInstance().triggerClientDump("InputMethodManager#notifyImeHidden", this,
null /* icProto */);
synchronized (mH) {
if (!isImeSessionAvailableLocked() || mCurRootView == null
|| mCurRootView.getWindowToken() != windowToken) {
ImeTracker.forLogging().onFailed(statsToken, ImeTracker.PHASE_CLIENT_VIEW_SERVED);
ImeTracker.forLatency().onHideFailed(statsToken,
ImeTracker.PHASE_CLIENT_VIEW_SERVED, ActivityThread::currentApplication);
return;
}
ImeTracker.forLogging().onProgress(statsToken, ImeTracker.PHASE_CLIENT_VIEW_SERVED);
IInputMethodManagerGlobalInvoker.hideSoftInput(mClient, windowToken, statsToken,
0 /* flags */, null /* resultReceiver */,
SoftInputShowHideReason.HIDE_SOFT_INPUT_BY_INSETS_API);
}
}
/**
* Notify IME directly to remove surface as it is no longer visible.
* @param windowToken The client window token that requests the IME to remove its surface.
* @hide
*/
public void removeImeSurface(@NonNull IBinder windowToken) {
synchronized (mH) {
IInputMethodManagerGlobalInvoker.removeImeSurfaceFromWindowAsync(windowToken);
}
}
/**
* Report the current selection range.
*
* Editor authors, you need to call this method whenever
* the cursor moves in your editor. Remember that in addition to doing this, your
* editor needs to always supply current cursor values in
* {@link EditorInfo#initialSelStart} and {@link EditorInfo#initialSelEnd} every
* time {@link android.view.View#onCreateInputConnection(EditorInfo)} is
* called, which happens whenever the keyboard shows up or the focus changes
* to a text field, among other cases.
*/
public void updateSelection(View view, int selStart, int selEnd,
int candidatesStart, int candidatesEnd) {
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
fallbackImm.updateSelection(view, selStart, selEnd, candidatesStart, candidatesEnd);
return;
}
checkFocus();
synchronized (mH) {
if (!hasServedByInputMethodLocked(view) || mCurrentEditorInfo == null
|| !isImeSessionAvailableLocked()) {
return;
}
if (mServedInputConnection != null && mServedInputConnection.hasPendingInvalidation()) {
return;
}
if (mCursorSelStart != selStart || mCursorSelEnd != selEnd
|| mCursorCandStart != candidatesStart
|| mCursorCandEnd != candidatesEnd) {
if (DEBUG) Log.d(TAG, "updateSelection");
if (DEBUG) {
Log.v(TAG, "SELECTION CHANGE: " + mCurBindState.mImeSession);
}
mCurBindState.mImeSession.updateSelection(mCursorSelStart, mCursorSelEnd, selStart,
selEnd, candidatesStart, candidatesEnd);
forAccessibilitySessionsLocked(wrapper -> wrapper.updateSelection(mCursorSelStart,
mCursorSelEnd, selStart, selEnd, candidatesStart, candidatesEnd));
mCursorSelStart = selStart;
mCursorSelEnd = selEnd;
mCursorCandStart = candidatesStart;
mCursorCandEnd = candidatesEnd;
}
}
}
/**
* Notify the event when the user tapped or clicked the text view.
*
* @param view {@link View} which is being clicked.
* @see InputMethodService#onViewClicked(boolean)
* @deprecated The semantics of this method can never be defined well for composite {@link View}
* that works as a giant "Canvas", which can host its own UI hierarchy and sub focus
* state. {@link android.webkit.WebView} is a good example. Application / IME
* developers should not rely on this method.
*/
@Deprecated
public void viewClicked(View view) {
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
fallbackImm.viewClicked(view);
return;
}
final View servedView;
final View nextServedView;
synchronized (mH) {
servedView = getServedViewLocked();
nextServedView = getNextServedViewLocked();
}
final boolean focusChanged = servedView != nextServedView;
checkFocus();
synchronized (mH) {
if (!hasServedByInputMethodLocked(view) || mCurrentEditorInfo == null
|| !isImeSessionAvailableLocked()) {
return;
}
if (DEBUG) Log.v(TAG, "onViewClicked: " + focusChanged);
mCurBindState.mImeSession.viewClicked(focusChanged);
}
}
/**
* Return true if the current input method wants to watch the location
* of the input editor's cursor in its window.
*
* @deprecated Use {@link InputConnection#requestCursorUpdates(int)} instead.
*/
@Deprecated
public boolean isWatchingCursor(View view) {
return false;
}
/**
* Return true if the current input method wants to be notified when cursor/anchor location
* is changed.
*
* @deprecated This method is kept for {@link UnsupportedAppUsage}. Must not be used.
* @hide
*/
@Deprecated
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
public boolean isCursorAnchorInfoEnabled() {
synchronized (mH) {
final boolean isImmediate = (mRequestUpdateCursorAnchorInfoMonitorMode &
CURSOR_UPDATE_IMMEDIATE) != 0;
final boolean isMonitoring = (mRequestUpdateCursorAnchorInfoMonitorMode &
CURSOR_UPDATE_MONITOR) != 0;
return isImmediate || isMonitoring;
}
}
/**
* Set the requested mode for {@link #updateCursorAnchorInfo(View, CursorAnchorInfo)}.
*
* @deprecated This method is kept for {@link UnsupportedAppUsage}. Must not be used.
* @hide
*/
@Deprecated
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
public void setUpdateCursorAnchorInfoMode(int flags) {
synchronized (mH) {
mRequestUpdateCursorAnchorInfoMonitorMode = flags;
}
}
/**
* Report the current cursor location in its window.
*
* @deprecated Use {@link #updateCursorAnchorInfo(View, CursorAnchorInfo)} instead.
*/
@Deprecated
public void updateCursor(View view, int left, int top, int right, int bottom) {
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
fallbackImm.updateCursor(view, left, top, right, bottom);
return;
}
checkFocus();
synchronized (mH) {
if (!hasServedByInputMethodLocked(view) || mCurrentEditorInfo == null
|| !isImeSessionAvailableLocked()) {
return;
}
mTmpCursorRect.set(left, top, right, bottom);
if (!mCursorRect.equals(mTmpCursorRect)) {
if (DEBUG) Log.d(TAG, "updateCursor: " + mCurBindState.mImeSession);
mCurBindState.mImeSession.updateCursor(mTmpCursorRect);
mCursorRect.set(mTmpCursorRect);
}
}
}
/**
* Report positional change of the text insertion point and/or characters in the composition
* string.
*/
public void updateCursorAnchorInfo(View view, final CursorAnchorInfo cursorAnchorInfo) {
if (view == null || cursorAnchorInfo == null) {
return;
}
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
fallbackImm.updateCursorAnchorInfo(view, cursorAnchorInfo);
return;
}
checkFocus();
synchronized (mH) {
if (!hasServedByInputMethodLocked(view) || mCurrentEditorInfo == null
|| !isImeSessionAvailableLocked()) {
return;
}
// If immediate bit is set, we will call updateCursorAnchorInfo() even when the data has
// not been changed from the previous call.
final boolean isImmediate = mServedInputConnection != null
&& mServedInputConnection.resetHasPendingImmediateCursorAnchorInfoUpdate();
if (!isImmediate && Objects.equals(mCursorAnchorInfo, cursorAnchorInfo)) {
// TODO: Consider always emitting this message once we have addressed redundant
// calls of this method from android.widget.Editor.
if (DEBUG) {
Log.w(TAG, "Ignoring redundant updateCursorAnchorInfo: info="
+ cursorAnchorInfo);
}
return;
}
if (DEBUG) Log.v(TAG, "updateCursorAnchorInfo: " + cursorAnchorInfo);
mCurBindState.mImeSession.updateCursorAnchorInfo(cursorAnchorInfo);
mCursorAnchorInfo = cursorAnchorInfo;
}
}
/**
* Call {@link InputMethodSession#appPrivateCommand(String, Bundle)
* InputMethodSession.appPrivateCommand()} on the current Input Method.
* @param view Optional View that is sending the command, or null if
* you want to send the command regardless of the view that is attached
* to the input method.
* @param action Name of the command to be performed. This must
* be a scoped name, i.e. prefixed with a package name you own, so that
* different developers will not create conflicting commands.
* @param data Any data to include with the command.
*/
public void sendAppPrivateCommand(View view, String action, Bundle data) {
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(view);
if (fallbackImm != null) {
fallbackImm.sendAppPrivateCommand(view, action, data);
return;
}
checkFocus();
synchronized (mH) {
if (!hasServedByInputMethodLocked(view) || mCurrentEditorInfo == null
|| !isImeSessionAvailableLocked()) {
return;
}
if (DEBUG) Log.v(TAG, "APP PRIVATE COMMAND " + action + ": " + data);
mCurBindState.mImeSession.appPrivateCommand(action, data);
}
}
/**
* Force switch to a new input method component. This can only be called
* from an application or a service which has a token of the currently active input method.
*
* On Android {@link Build.VERSION_CODES#Q} and later devices, the undocumented behavior that
* token can be {@code null} when the caller has
* {@link Manifest.permission#WRITE_SECURE_SETTINGS} is deprecated. Instead, update
* {@link android.provider.Settings.Secure#DEFAULT_INPUT_METHOD} and
* {@link android.provider.Settings.Secure#SELECTED_INPUT_METHOD_SUBTYPE} directly.
*
* @param token Supplies the identifying token given to an input method
* when it was started, which allows it to perform this operation on
* itself.
* @param id The unique identifier for the new input method to be switched to.
* @throws IllegalArgumentException if the input method is unknown or filtered by the rules of
* package visibility.
* @deprecated Use {@link InputMethodService#switchInputMethod(String)}
* instead. This method was intended for IME developers who should be accessing APIs through
* the service. APIs in this class are intended for app developers interacting with the IME.
*/
@Deprecated
public void setInputMethod(IBinder token, String id) {
if (token == null) {
// There are still some system components that rely on this undocumented behavior
// regarding null IME token with WRITE_SECURE_SETTINGS. Provide a fallback logic as a
// temporary remedy.
if (id == null) {
return;
}
if (Process.myUid() == Process.SYSTEM_UID) {
Log.w(TAG, "System process should not be calling setInputMethod() because almost "
+ "always it is a bug under multi-user / multi-profile environment. "
+ "Consider interacting with InputMethodManagerService directly via "
+ "LocalServices.");
return;
}
final Context fallbackContext = ActivityThread.currentApplication();
if (fallbackContext == null) {
return;
}
if (fallbackContext.checkSelfPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
!= PackageManager.PERMISSION_GRANTED) {
return;
}
final List imis = getEnabledInputMethodList();
final int numImis = imis.size();
boolean found = false;
for (int i = 0; i < numImis; ++i) {
final InputMethodInfo imi = imis.get(i);
if (id.equals(imi.getId())) {
found = true;
break;
}
}
if (!found) {
Log.e(TAG, "Ignoring setInputMethod(null, " + id + ") because the specified "
+ "id not found in enabled IMEs.");
return;
}
Log.w(TAG, "The undocumented behavior that setInputMethod() accepts null token "
+ "when the caller has WRITE_SECURE_SETTINGS is deprecated. This behavior may "
+ "be completely removed in a future version. Update secure settings directly "
+ "instead.");
final ContentResolver resolver = fallbackContext.getContentResolver();
Settings.Secure.putInt(resolver, Settings.Secure.SELECTED_INPUT_METHOD_SUBTYPE,
NOT_A_SUBTYPE_ID);
Settings.Secure.putString(resolver, Settings.Secure.DEFAULT_INPUT_METHOD, id);
return;
}
InputMethodPrivilegedOperationsRegistry.get(token).setInputMethod(id);
}
/**
* Force switch to a new input method and subtype. This can only be called
* from an application or a service which has a token of the currently active input method.
*
* On Android {@link Build.VERSION_CODES#Q} and later devices, {@code token} cannot be
* {@code null} even with {@link Manifest.permission#WRITE_SECURE_SETTINGS}. Instead,
* update {@link android.provider.Settings.Secure#DEFAULT_INPUT_METHOD} and
* {@link android.provider.Settings.Secure#SELECTED_INPUT_METHOD_SUBTYPE} directly.
*
* @param token Supplies the identifying token given to an input method
* when it was started, which allows it to perform this operation on
* itself.
* @param id The unique identifier for the new input method to be switched to.
* @param subtype The new subtype of the new input method to be switched to.
* @throws IllegalArgumentException if the input method is unknown or filtered by the rules of
* package visibility.
* @deprecated Use
* {@link InputMethodService#switchInputMethod(String, InputMethodSubtype)}
* instead. This method was intended for IME developers who should be accessing APIs through
* the service. APIs in this class are intended for app developers interacting with the IME.
*/
@Deprecated
public void setInputMethodAndSubtype(@NonNull IBinder token, String id,
InputMethodSubtype subtype) {
if (token == null) {
Log.e(TAG, "setInputMethodAndSubtype() does not accept null token on Android Q "
+ "and later.");
return;
}
InputMethodPrivilegedOperationsRegistry.get(token).setInputMethodAndSubtype(id, subtype);
}
/**
* Close/hide the input method's soft input area, so the user no longer
* sees it or can interact with it. This can only be called
* from the currently active input method, as validated by the given token.
*
* @param token Supplies the identifying token given to an input method
* when it was started, which allows it to perform this operation on
* itself.
* @deprecated Use {@link InputMethodService#requestHideSelf(int)} instead. This method was
* intended for IME developers who should be accessing APIs through the service. APIs in this
* class are intended for app developers interacting with the IME.
*/
@Deprecated
public void hideSoftInputFromInputMethod(IBinder token, @HideFlags int flags) {
final int reason = SoftInputShowHideReason.HIDE_SOFT_INPUT_IMM_DEPRECATION;
final var statsToken = ImeTracker.forLogging().onStart(ImeTracker.TYPE_HIDE,
ImeTracker.ORIGIN_CLIENT, reason, false /* fromUser */);
InputMethodPrivilegedOperationsRegistry.get(token).hideMySoftInput(statsToken, flags,
reason);
}
/**
* Show the input method's soft input area, so the user
* sees the input method window and can interact with it.
* This can only be called from the currently active input method,
* as validated by the given token.
*
* @param token Supplies the identifying token given to an input method
* when it was started, which allows it to perform this operation on
* itself.
* @deprecated Use {@link InputMethodService#requestShowSelf(int)} instead. This method was
* intended for IME developers who should be accessing APIs through the service. APIs in this
* class are intended for app developers interacting with the IME.
*/
@Deprecated
public void showSoftInputFromInputMethod(IBinder token, @ShowFlags int flags) {
final int reason = SoftInputShowHideReason.SHOW_SOFT_INPUT_IMM_DEPRECATION;
final var statsToken = ImeTracker.forLogging().onStart(ImeTracker.TYPE_SHOW,
ImeTracker.ORIGIN_CLIENT, reason, false /* fromUser */);
InputMethodPrivilegedOperationsRegistry.get(token).showMySoftInput(statsToken, flags,
reason);
}
/**
* Dispatches an input event to the IME.
*
* Returns {@link #DISPATCH_HANDLED} if the event was handled.
* Returns {@link #DISPATCH_NOT_HANDLED} if the event was not handled.
* Returns {@link #DISPATCH_IN_PROGRESS} if the event is in progress and the
* callback will be invoked later.
*
* @hide
*/
public int dispatchInputEvent(InputEvent event, Object token,
FinishedInputEventCallback callback, Handler handler) {
synchronized (mH) {
if (isImeSessionAvailableLocked()) {
if (event instanceof KeyEvent) {
KeyEvent keyEvent = (KeyEvent)event;
if (keyEvent.getAction() == KeyEvent.ACTION_DOWN
&& keyEvent.getKeyCode() == KeyEvent.KEYCODE_SYM
&& keyEvent.getRepeatCount() == 0) {
showInputMethodPickerLocked();
return DISPATCH_HANDLED;
}
}
if (DEBUG) {
Log.v(TAG, "DISPATCH INPUT EVENT: " + mCurBindState.mImeSession);
}
PendingEvent p = obtainPendingEventLocked(
event, token, mCurBindState.mImeId, callback, handler);
if (mMainLooper.isCurrentThread()) {
// Already running on the IMM thread so we can send the event immediately.
return sendInputEventOnMainLooperLocked(p);
}
// Post the event to the IMM thread.
Message msg = mH.obtainMessage(MSG_SEND_INPUT_EVENT, p);
msg.setAsynchronous(true);
mH.sendMessage(msg);
return DISPATCH_IN_PROGRESS;
}
}
return DISPATCH_NOT_HANDLED;
}
/**
* Provides the default implementation of {@link InputConnection#sendKeyEvent(KeyEvent)}, which
* is expected to dispatch an keyboard event sent from the IME to an appropriate event target
* depending on the given {@link View} and the current focus state.
*
* CAUTION: This method is provided only for the situation where
* {@link InputConnection#sendKeyEvent(KeyEvent)} needs to be implemented without relying on
* {@link BaseInputConnection}. Do not use this API for anything else.
*
* @param targetView the default target view. If {@code null} is specified, then this method
* tries to find a good event target based on the current focus state.
* @param event the key event to be dispatched.
*/
public void dispatchKeyEventFromInputMethod(@Nullable View targetView,
@NonNull KeyEvent event) {
// Re-dispatch if there is a context mismatch.
final InputMethodManager fallbackImm = getFallbackInputMethodManagerIfNecessary(targetView);
if (fallbackImm != null) {
fallbackImm.dispatchKeyEventFromInputMethod(targetView, event);
return;
}
synchronized (mH) {
ViewRootImpl viewRootImpl = targetView != null ? targetView.getViewRootImpl() : null;
if (viewRootImpl == null) {
final View servedView = getServedViewLocked();
if (servedView != null) {
viewRootImpl = servedView.getViewRootImpl();
}
}
if (viewRootImpl != null) {
viewRootImpl.dispatchKeyFromIme(event);
}
}
}
// Must be called on the main looper
private void sendInputEventAndReportResultOnMainLooper(PendingEvent p) {
final boolean handled;
synchronized (mH) {
int result = sendInputEventOnMainLooperLocked(p);
if (result == DISPATCH_IN_PROGRESS) {
return;
}
handled = (result == DISPATCH_HANDLED);
}
invokeFinishedInputEventCallback(p, handled);
}
// Must be called on the main looper
@GuardedBy("mH")
private int sendInputEventOnMainLooperLocked(PendingEvent p) {
if (mCurChannel != null) {
if (mCurSender == null) {
mCurSender = new ImeInputEventSender(mCurChannel, mH.getLooper());
}
final InputEvent event = p.mEvent;
final int seq = event.getSequenceNumber();
if (mCurSender.sendInputEvent(seq, event)) {
mPendingEvents.put(seq, p);
Trace.traceCounter(Trace.TRACE_TAG_INPUT, PENDING_EVENT_COUNTER,
mPendingEvents.size());
Message msg = mH.obtainMessage(MSG_TIMEOUT_INPUT_EVENT, seq, 0, p);
msg.setAsynchronous(true);
mH.sendMessageDelayed(msg, INPUT_METHOD_NOT_RESPONDING_TIMEOUT);
return DISPATCH_IN_PROGRESS;
}
if (sPreventImeStartupUnlessTextEditor) {
Log.d(TAG, "Dropping event because IME is evicted: " + event);
} else {
Log.w(TAG, "Unable to send input event to IME: " + getImeIdLocked()
+ " dropping: " + event);
}
}
return DISPATCH_NOT_HANDLED;
}
private void finishedInputEvent(int seq, boolean handled, boolean timeout) {
final PendingEvent p;
synchronized (mH) {
int index = mPendingEvents.indexOfKey(seq);
if (index < 0) {
return; // spurious, event already finished or timed out
}
p = mPendingEvents.valueAt(index);
mPendingEvents.removeAt(index);
Trace.traceCounter(Trace.TRACE_TAG_INPUT, PENDING_EVENT_COUNTER, mPendingEvents.size());
if (timeout) {
Log.w(TAG, "Timeout waiting for IME to handle input event after "
+ INPUT_METHOD_NOT_RESPONDING_TIMEOUT + " ms: " + p.mInputMethodId);
} else {
mH.removeMessages(MSG_TIMEOUT_INPUT_EVENT, p);
}
}
invokeFinishedInputEventCallback(p, handled);
}
// Assumes the event has already been removed from the queue.
private void invokeFinishedInputEventCallback(PendingEvent p, boolean handled) {
p.mHandled = handled;
if (p.mHandler.getLooper().isCurrentThread()) {
// Already running on the callback handler thread so we can send the
// callback immediately.
p.run();
} else {
// Post the event to the callback handler thread.
// In this case, the callback will be responsible for recycling the event.
Message msg = Message.obtain(p.mHandler, p);
msg.setAsynchronous(true);
msg.sendToTarget();
}
}
@GuardedBy("mH")
private void flushPendingEventsLocked() {
mH.removeMessages(MSG_FLUSH_INPUT_EVENT);
final int count = mPendingEvents.size();
for (int i = 0; i < count; i++) {
int seq = mPendingEvents.keyAt(i);
Message msg = mH.obtainMessage(MSG_FLUSH_INPUT_EVENT, seq, 0);
msg.setAsynchronous(true);
msg.sendToTarget();
}
}
@GuardedBy("mH")
private PendingEvent obtainPendingEventLocked(InputEvent event, Object token,
String inputMethodId, FinishedInputEventCallback callback, Handler handler) {
PendingEvent p = mPendingEventPool.acquire();
if (p == null) {
p = new PendingEvent();
}
p.mEvent = event;
p.mToken = token;
p.mInputMethodId = inputMethodId;
p.mCallback = callback;
p.mHandler = handler;
return p;
}
@GuardedBy("mH")
private void recyclePendingEventLocked(PendingEvent p) {
p.recycle();
mPendingEventPool.release(p);
}
/**
* Show IME picker popup window.
*
* Requires the {@link PackageManager#FEATURE_INPUT_METHODS} feature which can be detected
* using {@link PackageManager#hasSystemFeature(String)}.
*/
public void showInputMethodPicker() {
synchronized (mH) {
showInputMethodPickerLocked();
}
}
/**
* Shows the input method chooser dialog from system.
*
* @param showAuxiliarySubtypes Set true to show auxiliary input methods.
* @param displayId The ID of the display where the chooser dialog should be shown.
* @hide
*/
@RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
public void showInputMethodPickerFromSystem(boolean showAuxiliarySubtypes, int displayId) {
final int mode = showAuxiliarySubtypes
? SHOW_IM_PICKER_MODE_INCLUDE_AUXILIARY_SUBTYPES
: SHOW_IM_PICKER_MODE_EXCLUDE_AUXILIARY_SUBTYPES;
IInputMethodManagerGlobalInvoker.showInputMethodPickerFromSystem(mode, displayId);
}
@GuardedBy("mH")
private void showInputMethodPickerLocked() {
IInputMethodManagerGlobalInvoker.showInputMethodPickerFromClient(mClient,
SHOW_IM_PICKER_MODE_AUTO);
}
/**
* A test API for CTS to make sure that {@link #showInputMethodPicker()} works as expected.
*
*
When customizing the implementation of {@link #showInputMethodPicker()} API, make sure
* that this test API returns when and only while and only while
* {@link #showInputMethodPicker()} is showing UI. Otherwise your OS implementation may not
* pass CTS.
*
* @return {@code true} while and only while {@link #showInputMethodPicker()} is showing UI.
* @hide
*/
@TestApi
@RequiresPermission(Manifest.permission.TEST_INPUT_METHOD)
public boolean isInputMethodPickerShown() {
return IInputMethodManagerGlobalInvoker.isInputMethodPickerShownForTest();
}
/**
* A test API for CTS to check whether there are any pending IME visibility requests.
*
* @return {@code true} iff there are pending IME visibility requests.
* @hide
*/
@TestApi
@RequiresPermission(Manifest.permission.TEST_INPUT_METHOD)
public boolean hasPendingImeVisibilityRequests() {
return IInputMethodManagerGlobalInvoker.hasPendingImeVisibilityRequests();
}
/**
* A test API for CTS to finish the tracking of any pending IME visibility requests. This
* won't stop the actual requests, but allows resetting the state when starting up test runs.
*
* @hide
*/
@SuppressLint("UnflaggedApi") // @TestApi without associated feature.
@TestApi
@RequiresPermission(Manifest.permission.TEST_INPUT_METHOD)
public void finishTrackingPendingImeVisibilityRequests() {
IInputMethodManagerGlobalInvoker.finishTrackingPendingImeVisibilityRequests();
}
/**
* Show the settings for enabling subtypes of the specified input method.
*
* @param imiId An input method, whose subtypes settings will be shown. If imiId is null,
* subtypes of all input methods will be shown.
*/
public void showInputMethodAndSubtypeEnabler(@Nullable String imiId) {
Context context = null;
synchronized (mH) {
if (mCurRootView != null) {
context = mCurRootView.mContext;
}
}
if (context == null) {
final Context appContext = ActivityThread.currentApplication();
final DisplayManager displayManager = appContext.getSystemService(DisplayManager.class);
context = appContext.createDisplayContext(displayManager.getDisplay(mDisplayId));
}
final Intent intent = new Intent(Settings.ACTION_INPUT_METHOD_SUBTYPE_SETTINGS);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
| Intent.FLAG_ACTIVITY_CLEAR_TOP);
if (!TextUtils.isEmpty(imiId)) {
intent.putExtra(Settings.EXTRA_INPUT_METHOD_ID, imiId);
}
context.startActivity(intent);
}
/**
* Returns the current input method subtype. This subtype is one of the subtypes in
* the current input method. This method returns null when the current input method doesn't
* have any input method subtype.
*/
@Nullable
public InputMethodSubtype getCurrentInputMethodSubtype() {
return IInputMethodManagerGlobalInvoker.getCurrentInputMethodSubtype(UserHandle.myUserId());
}
/**
* Switch to a new input method subtype of the current input method.
* @param subtype A new input method subtype to switch.
* @return true if the current subtype was successfully switched. When the specified subtype is
* null, this method returns false.
* @deprecated If the calling process is an IME, use
* {@link InputMethodService#switchInputMethod(String, InputMethodSubtype)}, which
* does not require any permission as long as the caller is the current IME.
* If the calling process is some privileged app that already has
* {@link Manifest.permission#WRITE_SECURE_SETTINGS} permission, just
* directly update {@link Settings.Secure#SELECTED_INPUT_METHOD_SUBTYPE}.
*/
@Deprecated
@RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
public boolean setCurrentInputMethodSubtype(InputMethodSubtype subtype) {
if (Process.myUid() == Process.SYSTEM_UID) {
Log.w(TAG, "System process should not call setCurrentInputMethodSubtype() because "
+ "almost always it is a bug under multi-user / multi-profile environment. "
+ "Consider directly interacting with InputMethodManagerService "
+ "via LocalServices.");
return false;
}
if (subtype == null) {
// See the JavaDoc. This is how this method has worked.
return false;
}
final Context fallbackContext = ActivityThread.currentApplication();
if (fallbackContext == null) {
return false;
}
if (fallbackContext.checkSelfPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
!= PackageManager.PERMISSION_GRANTED) {
return false;
}
final ContentResolver contentResolver = fallbackContext.getContentResolver();
final String imeId = Settings.Secure.getString(contentResolver,
Settings.Secure.DEFAULT_INPUT_METHOD);
if (ComponentName.unflattenFromString(imeId) == null) {
// Null or invalid IME ID format.
return false;
}
final List enabledSubtypes =
IInputMethodManagerGlobalInvoker.getEnabledInputMethodSubtypeList(imeId, true,
UserHandle.myUserId());
final int numSubtypes = enabledSubtypes.size();
for (int i = 0; i < numSubtypes; ++i) {
final InputMethodSubtype enabledSubtype = enabledSubtypes.get(i);
if (enabledSubtype.equals(subtype)) {
Settings.Secure.putInt(contentResolver,
Settings.Secure.SELECTED_INPUT_METHOD_SUBTYPE, enabledSubtype.hashCode());
return true;
}
}
return false;
}
/**
* Notify that a user took some action with this input method.
*
* @deprecated Just kept to avoid possible app compat issue.
* @hide
*/
@Deprecated
@UnsupportedAppUsage(trackingBug = 114740982, maxTargetSdk = Build.VERSION_CODES.P)
public void notifyUserAction() {
Log.w(TAG, "notifyUserAction() is a hidden method, which is now just a stub method"
+ " that does nothing. Leave comments in b.android.com/114740982 if your "
+ " application still depends on the previous behavior of this method.");
}
/**
* Returns a map of all shortcut input method info and their subtypes.
*/
public Map> getShortcutInputMethodsAndSubtypes() {
final List enabledImes = getEnabledInputMethodList();
// Ensure we check system IMEs first.
enabledImes.sort(Comparator.comparingInt(imi -> imi.isSystem() ? 0 : 1));
final int numEnabledImes = enabledImes.size();
for (int imiIndex = 0; imiIndex < numEnabledImes; ++imiIndex) {
final InputMethodInfo imi = enabledImes.get(imiIndex);
final List subtypes = getEnabledInputMethodSubtypeList(
imi, true);
final int subtypeCount = subtypes.size();
for (int subtypeIndex = 0; subtypeIndex < subtypeCount; ++subtypeIndex) {
final InputMethodSubtype subtype = imi.getSubtypeAt(subtypeIndex);
if (SUBTYPE_MODE_VOICE.equals(subtype.getMode())) {
return Collections.singletonMap(imi, Collections.singletonList(subtype));
}
}
}
return Collections.emptyMap();
}
/**
* This is kept due to {@link android.compat.annotation.UnsupportedAppUsage}.
*
* TODO(Bug 113914148): Check if we can remove this. We have accidentally exposed
* WindowManagerInternal#getInputMethodWindowVisibleHeight to app developers and some of them
* started relying on it.
*
* @return Something that is not well-defined.
* @hide
*/
@UnsupportedAppUsage(trackingBug = 204906124, maxTargetSdk = Build.VERSION_CODES.TIRAMISU,
publicAlternatives = "Use {@link android.view.WindowInsets} instead")
public int getInputMethodWindowVisibleHeight() {
return IInputMethodManagerGlobalInvoker.getInputMethodWindowVisibleHeight(mClient);
}
/**
* {@code true} means that
* {@link RemoteInputConnectionImpl#requestCursorUpdatesInternal(int, int, int)} returns
* {@code false} when the IME client and the IME run in different displays.
*/
final AtomicBoolean mRequestCursorUpdateDisplayIdCheck = new AtomicBoolean(true);
/**
* Controls the display ID mismatch validation in
* {@link RemoteInputConnectionImpl#requestCursorUpdatesInternal(int, int, int)}.
*
* {@link #updateCursorAnchorInfo(View, CursorAnchorInfo)} is not guaranteed to work
* correctly when the IME client and the IME run in different displays. This is why
* {@link RemoteInputConnectionImpl#requestCursorUpdatesInternal(int, int, int)} returns
* {@code false} by default when the display ID does not match. This method allows special apps
* to override this behavior when they are sure that it should work.
*
* By default the validation is enabled.
*
* @param enabled {@code false} to disable the display ID validation.
* @hide
*/
public void setRequestCursorUpdateDisplayIdCheck(boolean enabled) {
mRequestCursorUpdateDisplayIdCheck.set(enabled);
}
/**
* Force switch to the last used input method and subtype. If the last input method didn't have
* any subtypes, the framework will simply switch to the last input method with no subtype
* specified.
* @param imeToken Supplies the identifying token given to an input method when it was started,
* which allows it to perform this operation on itself.
* @return true if the current input method and subtype was successfully switched to the last
* used input method and subtype.
* @deprecated Use {@link InputMethodService#switchToPreviousInputMethod()} instead. This method
* was intended for IME developers who should be accessing APIs through the service. APIs in
* this class are intended for app developers interacting with the IME.
*/
@Deprecated
public boolean switchToLastInputMethod(IBinder imeToken) {
return InputMethodPrivilegedOperationsRegistry.get(imeToken).switchToPreviousInputMethod();
}
/**
* Force switch to the next input method and subtype. If there is no IME enabled except
* current IME and subtype, do nothing.
* @param imeToken Supplies the identifying token given to an input method when it was started,
* which allows it to perform this operation on itself.
* @param onlyCurrentIme if true, the framework will find the next subtype which
* belongs to the current IME
* @return true if the current input method and subtype was successfully switched to the next
* input method and subtype.
* @deprecated Use {@link InputMethodService#switchToNextInputMethod(boolean)} instead. This
* method was intended for IME developers who should be accessing APIs through the service.
* APIs in this class are intended for app developers interacting with the IME.
*/
@Deprecated
public boolean switchToNextInputMethod(IBinder imeToken, boolean onlyCurrentIme) {
return InputMethodPrivilegedOperationsRegistry.get(imeToken)
.switchToNextInputMethod(onlyCurrentIme);
}
/**
* Returns true if the current IME needs to offer the users ways to switch to a next input
* method (e.g. a globe key.).
* When an IME sets supportsSwitchingToNextInputMethod and this method returns true,
* the IME has to offer ways to to invoke {@link #switchToNextInputMethod} accordingly.
* Note that the system determines the most appropriate next input method
* and subtype in order to provide the consistent user experience in switching
* between IMEs and subtypes.
* @param imeToken Supplies the identifying token given to an input method when it was started,
* which allows it to perform this operation on itself.
* @deprecated Use {@link InputMethodService#shouldOfferSwitchingToNextInputMethod()}
* instead. This method was intended for IME developers who should be accessing APIs through
* the service. APIs in this class are intended for app developers interacting with the IME.
*/
@Deprecated
public boolean shouldOfferSwitchingToNextInputMethod(IBinder imeToken) {
return InputMethodPrivilegedOperationsRegistry.get(imeToken)
.shouldOfferSwitchingToNextInputMethod();
}
/**
* Set additional input method subtypes. Only a process which shares the same uid with the IME
* can add additional input method subtypes to the IME.
* Please note that a subtype's status is stored in the system.
* For example, enabled subtypes are remembered by the framework even after they are removed
* by using this method. If you re-add the same subtypes again,
* they will just get enabled. If you want to avoid such conflicts, for instance, you may
* want to create a "different" new subtype even with the same locale and mode,
* by changing its extra value. The different subtype won't get affected by the stored past
* status. (You may want to take a look at {@link InputMethodSubtype#hashCode()} to refer
* to the current implementation.)
*
*
NOTE: If the same subtype exists in both the manifest XML file and additional subtypes
* specified by {@code subtypes}, those multiple instances are automatically merged into one
* instance.
*
* CAVEAT: In API Level 23 and prior, the system may do nothing if an empty
* {@link InputMethodSubtype} is specified in {@code subtypes}, which prevents you from removing
* the last one entry of additional subtypes. If your IME statically defines one or more
* subtypes in the manifest XML file, you may be able to work around this limitation by
* specifying one of those statically defined subtypes in {@code subtypes}.
*
* @param imiId Id of InputMethodInfo which additional input method subtypes will be added to.
* If the imiId is {@code null}, system would do nothing for this operation.
* @param subtypes subtypes will be added as additional subtypes of the current input method.
* If the subtypes is {@code null}, system would do nothing for this operation.
* @deprecated For IMEs that have already implemented features like customizable/downloadable
* keyboard layouts/languages, please start migration to other approaches. One idea
* would be exposing only one unified {@link InputMethodSubtype} then implement
* IME's own language switching mechanism within that unified subtype. The support
* of "Additional Subtype" may be completely dropped in a future version of Android.
*/
@Deprecated
public void setAdditionalInputMethodSubtypes(@NonNull String imiId,
@NonNull InputMethodSubtype[] subtypes) {
IInputMethodManagerGlobalInvoker.setAdditionalInputMethodSubtypes(imiId, subtypes,
UserHandle.myUserId());
}
/**
* Updates the list of explicitly enabled {@link InputMethodSubtype} for a given IME owned by
* the calling process.
*
* By default each IME has no explicitly enabled {@link InputMethodSubtype}. In this state
* the system will decide what {@link InputMethodSubtype} should be enabled by using information
* available at runtime as per-user language settings. Users can, however, manually pick up one
* or more {@link InputMethodSubtype} to be enabled on an Activity shown by
* {@link #showInputMethodAndSubtypeEnabler(String)}. Such a manual change is stored in
* {@link Settings.Secure#ENABLED_INPUT_METHODS} so that the change can persist across reboots.
* {@link Settings.Secure#ENABLED_INPUT_METHODS} stores {@link InputMethodSubtype#hashCode()} as
* the identifier of {@link InputMethodSubtype} for historical reasons.
*
* This API provides a safe and managed way for IME developers to modify what
* {@link InputMethodSubtype} are referenced in {@link Settings.Secure#ENABLED_INPUT_METHODS}
* for their own IME. One use case is when IME developers want to use their own Activity for
* users to pick up {@link InputMethodSubtype}. Another use case is for IME developers to fix up
* any stale and/or invalid value stored in {@link Settings.Secure#ENABLED_INPUT_METHODS}
* without bothering users. Passing an empty {@code subtypeHashCodes} is guaranteed to reset
* the state to default.
*
* To control the return value of {@link InputMethodSubtype#hashCode()}
* {@link android.R.attr#subtypeId} and {@link
* android.view.inputmethod.InputMethodSubtype.InputMethodSubtypeBuilder#setSubtypeId(int)} are
* available for IME developers to control the return value of
* {@link InputMethodSubtype#hashCode()}. Beware that {@code -1} is not a valid value of
* {@link InputMethodSubtype#hashCode()} for historical reasons.
*
* Note for Direct Boot support
* While IME developers can call this API even before
* {@link android.os.UserManager#isUserUnlocked()} becomes {@code true}, such a change is
* volatile thus remains effective only until {@link android.os.UserManager#isUserUnlocked()}
* becomes {@code true} or the device is rebooted. To make the change persistent IME developers
* need to call this API again after receiving {@link Intent#ACTION_USER_UNLOCKED}.
*
* @param imiId IME ID. The specified IME and the calling process need to belong to the same
* package. Otherwise {@link SecurityException} will be thrown.
* @param subtypeHashCodes An arrays of {@link InputMethodSubtype#hashCode()} to be explicitly
* enabled. Entries that are found in the specified IME will be silently
* ignored. Pass an empty array to reset the state to default.
* @throws NullPointerException if {@code subtypeHashCodes} is {@code null}.
* @throws SecurityException if the specified IME and the calling process do not belong to the
* same package.
*/
public void setExplicitlyEnabledInputMethodSubtypes(@NonNull String imiId,
@NonNull int[] subtypeHashCodes) {
IInputMethodManagerGlobalInvoker.setExplicitlyEnabledInputMethodSubtypes(imiId,
subtypeHashCodes, UserHandle.myUserId());
}
/**
* Returns the last used {@link InputMethodSubtype} in system history.
*
* @return the last {@link InputMethodSubtype}, {@code null} if last IME have no subtype.
*/
@Nullable
public InputMethodSubtype getLastInputMethodSubtype() {
return IInputMethodManagerGlobalInvoker.getLastInputMethodSubtype(UserHandle.myUserId());
}
/**
* This is used for CTS test only. Do not use this method outside of CTS package.
* @return the ID of this display which this {@link InputMethodManager} resides
* @hide
*/
@TestApi
public int getDisplayId() {
return mDisplayId;
}
private void doDump(FileDescriptor fd, PrintWriter fout, String[] args) {
if (processDump(fd, args)) {
return;
}
final Printer p = new PrintWriterPrinter(fout);
p.println("Input method client state for " + this + ":");
p.println(" mFallbackInputConnection=" + mFallbackInputConnection);
p.println(" mActive=" + mActive
+ " mRestartOnNextWindowFocus=" + mRestartOnNextWindowFocus
+ " mBindSequence=" + getBindSequenceLocked()
+ " mCurImeId=" + getImeIdLocked());
p.println(" mFullscreenMode=" + mFullscreenMode);
if (isImeSessionAvailableLocked()) {
p.println(" mCurMethod=" + mCurBindState.mImeSession);
} else {
p.println(" mCurMethod= null");
}
for (int i = 0; i < mAccessibilityInputMethodSession.size(); i++) {
p.println(" mAccessibilityInputMethodSession("
+ mAccessibilityInputMethodSession.keyAt(i) + ")="
+ mAccessibilityInputMethodSession.valueAt(i));
}
p.println(" mCurRootView=" + mCurRootView);
p.println(" mServedView=" + getServedViewLocked());
p.println(" mNextServedView=" + getNextServedViewLocked());
p.println(" mServedConnecting=" + mServedConnecting);
if (mCurrentEditorInfo != null) {
p.println(" mCurrentEditorInfo:");
mCurrentEditorInfo.dump(p, " ", false /* dumpExtras */);
} else {
p.println(" mCurrentEditorInfo: null");
}
p.println(" mServedInputConnection=" + mServedInputConnection);
p.println(" mServedInputConnectionHandler=" + mServedInputConnectionHandler);
p.println(" mCompletions=" + Arrays.toString(mCompletions));
p.println(" mCursorRect=" + mCursorRect);
p.println(" mCursorSelStart=" + mCursorSelStart
+ " mCursorSelEnd=" + mCursorSelEnd
+ " mCursorCandStart=" + mCursorCandStart
+ " mCursorCandEnd=" + mCursorCandEnd);
}
/**
* Callback that is invoked when an input event that was dispatched to
* the IME has been finished.
* @hide
*/
public interface FinishedInputEventCallback {
public void onFinishedInputEvent(Object token, boolean handled);
}
private static class ConnectionlessHandwritingCallbackProxy
extends IConnectionlessHandwritingCallback.Stub {
private final Object mLock = new Object();
@Nullable
@GuardedBy("mLock")
private Executor mExecutor;
@Nullable
@GuardedBy("mLock")
private ConnectionlessHandwritingCallback mCallback;
ConnectionlessHandwritingCallbackProxy(
@NonNull Executor executor, @NonNull ConnectionlessHandwritingCallback callback) {
mExecutor = executor;
mCallback = callback;
}
@Override
public void onResult(CharSequence text) {
Executor executor;
ConnectionlessHandwritingCallback callback;
synchronized (mLock) {
if (mExecutor == null || mCallback == null) {
return;
}
executor = mExecutor;
callback = mCallback;
mExecutor = null;
mCallback = null;
}
final long identity = Binder.clearCallingIdentity();
try {
if (TextUtils.isEmpty(text)) {
executor.execute(() -> callback.onError(
ConnectionlessHandwritingCallback
.CONNECTIONLESS_HANDWRITING_ERROR_NO_TEXT_RECOGNIZED));
} else {
executor.execute(() -> callback.onResult(text));
}
} finally {
Binder.restoreCallingIdentity(identity);
}
}
@Override
public void onError(int errorCode) {
Executor executor;
ConnectionlessHandwritingCallback callback;
synchronized (mLock) {
if (mExecutor == null || mCallback == null) {
return;
}
executor = mExecutor;
callback = mCallback;
mExecutor = null;
mCallback = null;
}
final long identity = Binder.clearCallingIdentity();
try {
executor.execute(() -> callback.onError(errorCode));
} finally {
Binder.restoreCallingIdentity(identity);
}
}
}
private final class ImeInputEventSender extends InputEventSender {
public ImeInputEventSender(InputChannel inputChannel, Looper looper) {
super(inputChannel, looper);
}
@Override
public void onInputEventFinished(int seq, boolean handled) {
finishedInputEvent(seq, handled, false);
}
}
private final class PendingEvent implements Runnable {
public InputEvent mEvent;
public Object mToken;
public String mInputMethodId;
public FinishedInputEventCallback mCallback;
public Handler mHandler;
public boolean mHandled;
public void recycle() {
mEvent = null;
mToken = null;
mInputMethodId = null;
mCallback = null;
mHandler = null;
mHandled = false;
}
@Override
public void run() {
mCallback.onFinishedInputEvent(mToken, mHandled);
synchronized (mH) {
recyclePendingEventLocked(this);
}
}
}
private static final class BindState {
/**
* Encapsulates IPCs to the currently connected InputMethodService.
*/
@Nullable
final IInputMethodSessionInvoker mImeSession;
/**
* As reported by {@link InputBindResult}. This value is determined by
* {@link com.android.internal.R.styleable#InputMethod_suppressesSpellChecker}.
*/
final boolean mIsInputMethodSuppressingSpellChecker;
/**
* As reported by {@link InputBindResult}. This value indicates the bound input method ID.
*/
@Nullable
final String mImeId;
/**
* Sequence number of this binding, as returned by the server.
*/
final int mBindSequence;
BindState(@NonNull InputBindResult inputBindResult) {
mImeSession = IInputMethodSessionInvoker.createOrNull(inputBindResult.method);
mIsInputMethodSuppressingSpellChecker =
inputBindResult.isInputMethodSuppressingSpellChecker;
mImeId = inputBindResult.id;
mBindSequence = inputBindResult.sequence;
}
}
@GuardedBy("mH")
private boolean isImeSessionAvailableLocked() {
return mCurBindState != null && mCurBindState.mImeSession != null;
}
@GuardedBy("mH")
private String getImeIdLocked() {
return mCurBindState != null ? mCurBindState.mImeId : null;
}
@GuardedBy("mH")
private int getBindSequenceLocked() {
return mCurBindState != null ? mCurBindState.mBindSequence : -1;
}
/**
* Checks the args to see if a proto-based ime dump was requested and writes the client side
* ime dump to the given {@link FileDescriptor}.
*
* @return {@code true} if a proto-based ime dump was requested.
*/
private boolean processDump(final FileDescriptor fd, final String[] args) {
if (args == null) {
return false;
}
for (String arg : args) {
if (arg.equals(ImeTracing.PROTO_ARG)) {
final ProtoOutputStream proto = new ProtoOutputStream(fd);
dumpDebug(proto, null /* icProto */);
proto.flush();
return true;
}
}
return false;
}
/**
* Write the proto dump of various client side components to the provided
* {@link ProtoOutputStream}.
*
* @param proto The proto stream to which the dumps are written.
* @param icProto {@link InputConnection} call data in proto format.
* @hide
*/
public void dumpDebug(ProtoOutputStream proto, @Nullable byte[] icProto) {
synchronized (mH) {
if (!isImeSessionAvailableLocked()) {
return;
}
proto.write(DISPLAY_ID, mDisplayId);
final long token = proto.start(INPUT_METHOD_MANAGER);
proto.write(CUR_ID, mCurBindState.mImeId);
proto.write(FULLSCREEN_MODE, mFullscreenMode);
proto.write(ACTIVE, mActive);
proto.write(SERVED_CONNECTING, mServedConnecting);
proto.write(SERVED_VIEW, Objects.toString(mServedView));
proto.write(NEXT_SERVED_VIEW, Objects.toString(mNextServedView));
proto.end(token);
if (mCurRootView != null) {
mCurRootView.dumpDebug(proto, VIEW_ROOT_IMPL);
}
if (mCurrentEditorInfo != null) {
mCurrentEditorInfo.dumpDebug(proto, EDITOR_INFO);
}
if (mImeInsetsConsumer != null) {
mImeInsetsConsumer.dumpDebug(proto, IME_INSETS_SOURCE_CONSUMER);
}
if (mServedInputConnection != null) {
mServedInputConnection.dumpDebug(proto, INPUT_CONNECTION);
}
if (icProto != null) {
proto.write(INPUT_CONNECTION_CALL, icProto);
}
}
}
@GuardedBy("mH")
private void forAccessibilitySessionsLocked(
Consumer consumer) {
for (int i = 0; i < mAccessibilityInputMethodSession.size(); i++) {
consumer.accept(mAccessibilityInputMethodSession.valueAt(i));
}
}
@UiThread
private static Pair createInputConnection(
@NonNull View servedView) {
final EditorInfo editorInfo = new EditorInfo();
// Note: Use Context#getOpPackageName() rather than Context#getPackageName() so that the
// system can verify the consistency between the uid of this process and package name passed
// from here. See comment of Context#getOpPackageName() for details.
editorInfo.packageName = servedView.getContext().getOpPackageName();
editorInfo.autofillId = servedView.getAutofillId();
editorInfo.fieldId = servedView.getId();
final InputConnection ic = servedView.onCreateInputConnection(editorInfo);
if (DEBUG) Log.v(TAG, "Starting input: editorInfo=" + editorInfo + " ic=" + ic);
// Clear autofill and field ids if a connection could not be established.
// This ensures that even disconnected EditorInfos have well-defined attributes,
// making them consistently and straightforwardly comparable.
if (ic == null) {
editorInfo.autofillId = AutofillId.NO_AUTOFILL_ID;
editorInfo.fieldId = 0;
}
return new Pair<>(ic, editorInfo);
}
}