| /* |
| * Copyright (C) 2020 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.car; |
| |
| import static android.car.CarOccupantZoneManager.DisplayTypeEnum; |
| |
| import static com.android.car.internal.common.CommonConstants.EMPTY_INT_ARRAY; |
| import static com.android.car.internal.ExcludeFromCodeCoverageGeneratedReport.DUMP_INFO; |
| |
| import static java.util.Map.entry; |
| |
| import android.annotation.NonNull; |
| import android.car.Car; |
| import android.car.CarOccupantZoneManager; |
| import android.car.builtin.PermissionHelper; |
| import android.car.builtin.util.Slogf; |
| import android.car.input.CarInputManager; |
| import android.car.input.CustomInputEvent; |
| import android.car.input.ICarInputCallback; |
| import android.car.input.RotaryEvent; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.os.Binder; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.util.ArrayMap; |
| import android.util.SparseArray; |
| import android.view.KeyEvent; |
| |
| import com.android.car.internal.ExcludeFromCodeCoverageGeneratedReport; |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.util.Preconditions; |
| |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| |
| /** |
| * Manages input capture request from clients |
| */ |
| public class InputCaptureClientController { |
| private static final boolean DBG_STACK = false; |
| private static final boolean DBG_DISPATCH = false; |
| private static final boolean DBG_CALLS = false; |
| |
| private static final String TAG = CarLog.tagFor(InputCaptureClientController.class); |
| /** |
| * This table decides which input key goes into which input type. Not mapped here means it is |
| * not supported for capturing. Rotary events are treated separately and this is only for |
| * key events. |
| */ |
| private static final Map<Integer, Integer> KEY_EVENT_TO_INPUT_TYPE = Map.ofEntries( |
| entry(KeyEvent.KEYCODE_DPAD_CENTER, CarInputManager.INPUT_TYPE_DPAD_KEYS), |
| entry(KeyEvent.KEYCODE_DPAD_DOWN, CarInputManager.INPUT_TYPE_DPAD_KEYS), |
| entry(KeyEvent.KEYCODE_DPAD_UP, CarInputManager.INPUT_TYPE_DPAD_KEYS), |
| entry(KeyEvent.KEYCODE_DPAD_LEFT, CarInputManager.INPUT_TYPE_DPAD_KEYS), |
| entry(KeyEvent.KEYCODE_DPAD_RIGHT, CarInputManager.INPUT_TYPE_DPAD_KEYS), |
| entry(KeyEvent.KEYCODE_DPAD_DOWN_LEFT, CarInputManager.INPUT_TYPE_DPAD_KEYS), |
| entry(KeyEvent.KEYCODE_DPAD_DOWN_RIGHT, CarInputManager.INPUT_TYPE_DPAD_KEYS), |
| entry(KeyEvent.KEYCODE_DPAD_UP_LEFT, CarInputManager.INPUT_TYPE_DPAD_KEYS), |
| entry(KeyEvent.KEYCODE_DPAD_UP_RIGHT, CarInputManager.INPUT_TYPE_DPAD_KEYS), |
| entry(KeyEvent.KEYCODE_NAVIGATE_IN, CarInputManager.INPUT_TYPE_NAVIGATE_KEYS), |
| entry(KeyEvent.KEYCODE_NAVIGATE_OUT, CarInputManager.INPUT_TYPE_NAVIGATE_KEYS), |
| entry(KeyEvent.KEYCODE_NAVIGATE_NEXT, CarInputManager.INPUT_TYPE_NAVIGATE_KEYS), |
| entry(KeyEvent.KEYCODE_NAVIGATE_PREVIOUS, CarInputManager.INPUT_TYPE_NAVIGATE_KEYS), |
| entry(KeyEvent.KEYCODE_BACK, CarInputManager.INPUT_TYPE_NAVIGATE_KEYS), |
| entry(KeyEvent.KEYCODE_SYSTEM_NAVIGATION_DOWN, |
| CarInputManager.INPUT_TYPE_SYSTEM_NAVIGATE_KEYS), |
| entry(KeyEvent.KEYCODE_SYSTEM_NAVIGATION_UP, |
| CarInputManager.INPUT_TYPE_SYSTEM_NAVIGATE_KEYS), |
| entry(KeyEvent.KEYCODE_SYSTEM_NAVIGATION_LEFT, |
| CarInputManager.INPUT_TYPE_SYSTEM_NAVIGATE_KEYS), |
| entry(KeyEvent.KEYCODE_SYSTEM_NAVIGATION_RIGHT, |
| CarInputManager.INPUT_TYPE_SYSTEM_NAVIGATE_KEYS), |
| entry(KeyEvent.KEYCODE_VOICE_ASSIST, CarInputManager.INPUT_TYPE_SYSTEM_NAVIGATE_KEYS) |
| ); |
| |
| private static final Set<Integer> VALID_INPUT_TYPES = Set.of( |
| CarInputManager.INPUT_TYPE_ALL_INPUTS, |
| CarInputManager.INPUT_TYPE_ROTARY_NAVIGATION, |
| CarInputManager.INPUT_TYPE_DPAD_KEYS, |
| CarInputManager.INPUT_TYPE_NAVIGATE_KEYS, |
| CarInputManager.INPUT_TYPE_SYSTEM_NAVIGATE_KEYS, |
| CarInputManager.INPUT_TYPE_CUSTOM_INPUT_EVENT |
| ); |
| |
| private static final Set<Integer> VALID_ROTARY_TYPES = Set.of( |
| CarInputManager.INPUT_TYPE_ROTARY_NAVIGATION |
| ); |
| |
| // TODO(b/150818155) Need to migrate cluster code to use this to enable it. |
| private static final List<Integer> SUPPORTED_DISPLAY_TYPES = List.of( |
| CarOccupantZoneManager.DISPLAY_TYPE_MAIN, |
| CarOccupantZoneManager.DISPLAY_TYPE_INSTRUMENT_CLUSTER |
| ); |
| |
| private static final int[] EMPTY_INPUT_TYPES = EMPTY_INT_ARRAY; |
| |
| private final class ClientInfoForDisplay implements IBinder.DeathRecipient { |
| private final int mUid; |
| private final int mPid; |
| private final ICarInputCallback mCallback; |
| private final int mTargetDisplayType; |
| private final int[] mInputTypes; |
| private final int mFlags; |
| private final ArrayList<Integer> mGrantedTypes; |
| |
| private ClientInfoForDisplay(int uid, int pid, @NonNull ICarInputCallback callback, |
| int targetDisplayType, int[] inputTypes, int flags) { |
| mUid = uid; |
| mPid = pid; |
| mCallback = callback; |
| mTargetDisplayType = targetDisplayType; |
| mInputTypes = inputTypes; |
| mFlags = flags; |
| mGrantedTypes = new ArrayList<>(inputTypes.length); |
| } |
| |
| private void linkToDeath() throws RemoteException { |
| mCallback.asBinder().linkToDeath(this, 0); |
| } |
| |
| private void unlinkToDeath() { |
| mCallback.asBinder().unlinkToDeath(this, 0); |
| } |
| |
| @Override |
| public void binderDied() { |
| onClientDeath(this); |
| } |
| |
| @Override |
| public String toString() { |
| return new StringBuilder(128) |
| .append("Client{") |
| .append("uid:") |
| .append(mUid) |
| .append(",pid:") |
| .append(mPid) |
| .append(",callback:") |
| .append(mCallback) |
| .append(",inputTypes:") |
| .append(Arrays.toString(mInputTypes)) |
| .append(",flags:") |
| .append(Integer.toHexString(mFlags)) |
| .append(",grantedTypes:") |
| .append(mGrantedTypes) |
| .append("}") |
| .toString(); |
| } |
| } |
| |
| private static final class ClientsToDispatch { |
| // The same client can be added multiple times. Keeping only the last addition is ok. |
| private final ArrayMap<ICarInputCallback, int[]> mClientsToDispatch = |
| new ArrayMap<>(); |
| private final int mDisplayType; |
| |
| private ClientsToDispatch(int displayType) { |
| mDisplayType = displayType; |
| } |
| |
| private void add(ClientInfoForDisplay client) { |
| int[] inputTypesToDispatch; |
| if (client.mGrantedTypes.isEmpty()) { |
| inputTypesToDispatch = EMPTY_INPUT_TYPES; |
| } else { |
| inputTypesToDispatch = client.mGrantedTypes.stream().mapToInt( |
| Integer::intValue).toArray(); |
| } |
| mClientsToDispatch.put(client.mCallback, inputTypesToDispatch); |
| } |
| } |
| |
| private final Context mContext; |
| |
| private final Object mLock = new Object(); |
| |
| /** |
| * key: display type, for quick discovery of client |
| * LinkedList is for implementing stack. First entry is the top. |
| */ |
| @GuardedBy("mLock") |
| private final SparseArray<LinkedList<ClientInfoForDisplay>> mFullDisplayEventCapturers = |
| new SparseArray<>(2); |
| |
| /** |
| * key: display type -> inputType, for quick discovery of client |
| * LinkedList is for implementing stack. First entry is the top. |
| */ |
| @GuardedBy("mLock") |
| private final SparseArray<SparseArray<LinkedList<ClientInfoForDisplay>>> |
| mPerInputTypeCapturers = new SparseArray<>(2); |
| |
| @GuardedBy("mLock") |
| /** key: display type -> client binder */ |
| private final SparseArray<HashMap<IBinder, ClientInfoForDisplay>> mAllClients = |
| new SparseArray<>(1); |
| |
| @GuardedBy("mLock") |
| /** Keeps events to dispatch together. FIFO, last one added to last */ |
| private final LinkedList<ClientsToDispatch> mClientDispatchQueue = |
| new LinkedList<>(); |
| |
| /** Accessed from dispatch thread only */ |
| private final ArrayList<KeyEvent> mKeyEventDispatchScratchList = new ArrayList<>(1); |
| |
| /** Accessed from dispatch thread only */ |
| private final ArrayList<RotaryEvent> mRotaryEventDispatchScratchList = new ArrayList<>(1); |
| |
| /** Accessed from dispatch thread only */ |
| private final ArrayList<CustomInputEvent> mCustomInputEventDispatchScratchList = |
| new ArrayList<>(1); |
| |
| @GuardedBy("mLock") |
| private int mNumKeyEventsDispatched; |
| @GuardedBy("mLock") |
| private int mNumRotaryEventsDispatched; |
| |
| private final String mClusterHomePackage; |
| |
| public InputCaptureClientController(Context context) { |
| mContext = context; |
| mClusterHomePackage = ComponentName.unflattenFromString( |
| mContext.getString(R.string.config_clusterHomeActivity)).getPackageName(); |
| } |
| |
| /** |
| * See |
| * {@link CarInputManager#requestInputEventCapture(CarInputManager.CarInputCaptureCallback, |
| * int, int[], int)}. |
| */ |
| public int requestInputEventCapture(ICarInputCallback callback, |
| @DisplayTypeEnum int targetDisplayType, |
| int[] inputTypes, int requestFlags) { |
| CarServiceUtils.assertAnyPermission(mContext, |
| Car.PERMISSION_CAR_MONITOR_INPUT, PermissionHelper.MONITOR_INPUT); |
| |
| Preconditions.checkArgument(SUPPORTED_DISPLAY_TYPES.contains(targetDisplayType), |
| "Display not supported yet:" + targetDisplayType); |
| |
| boolean isRequestingAllEvents = |
| (requestFlags & CarInputManager.CAPTURE_REQ_FLAGS_TAKE_ALL_EVENTS_FOR_DISPLAY) != 0; |
| if (isRequestingAllEvents) { |
| if (targetDisplayType != CarOccupantZoneManager.DISPLAY_TYPE_INSTRUMENT_CLUSTER) { |
| CarServiceUtils.assertCallingFromSystemProcessOrSelf(); |
| } else { // for DISPLAY_TYPE_INSTRUMENT_CLUSTER |
| if (!CarServiceUtils.isCallingFromSystemProcessOrSelf()) { |
| CarServiceUtils.checkCalledByPackage(mContext, mClusterHomePackage); |
| } |
| } |
| if (inputTypes.length != 1 || inputTypes[0] != CarInputManager.INPUT_TYPE_ALL_INPUTS) { |
| throw new IllegalArgumentException("Input type should be INPUT_TYPE_ALL_INPUTS" |
| + " for CAPTURE_REQ_FLAGS_TAKE_ALL_EVENTS_FOR_DISPLAY"); |
| } |
| } |
| if (targetDisplayType != CarOccupantZoneManager.DISPLAY_TYPE_INSTRUMENT_CLUSTER |
| && targetDisplayType != CarOccupantZoneManager.DISPLAY_TYPE_MAIN) { |
| throw new IllegalArgumentException("Unrecognized display type:" + targetDisplayType); |
| } |
| if (inputTypes == null) { |
| throw new IllegalArgumentException("inputTypes cannot be null"); |
| } |
| assertInputTypeValid(inputTypes); |
| Arrays.sort(inputTypes); |
| IBinder clientBinder = callback.asBinder(); |
| boolean allowsDelayedGrant = |
| (requestFlags & CarInputManager.CAPTURE_REQ_FLAGS_ALLOW_DELAYED_GRANT) != 0; |
| int ret = CarInputManager.INPUT_CAPTURE_RESPONSE_SUCCEEDED; |
| if (DBG_CALLS) { |
| Slogf.i(TAG, |
| "requestInputEventCapture callback:" + callback |
| + ", display:" + targetDisplayType |
| + ", inputTypes:" + Arrays.toString(inputTypes) |
| + ", flags:" + requestFlags); |
| } |
| ClientsToDispatch clientsToDispatch = new ClientsToDispatch(targetDisplayType); |
| synchronized (mLock) { |
| HashMap<IBinder, ClientInfoForDisplay> allClientsForDisplay = mAllClients.get( |
| targetDisplayType); |
| if (allClientsForDisplay == null) { |
| allClientsForDisplay = new HashMap<IBinder, ClientInfoForDisplay>(); |
| mAllClients.put(targetDisplayType, allClientsForDisplay); |
| } |
| ClientInfoForDisplay oldClientInfo = allClientsForDisplay.remove(clientBinder); |
| |
| LinkedList<ClientInfoForDisplay> fullCapturersStack = mFullDisplayEventCapturers.get( |
| targetDisplayType); |
| if (fullCapturersStack == null) { |
| fullCapturersStack = new LinkedList<ClientInfoForDisplay>(); |
| mFullDisplayEventCapturers.put(targetDisplayType, fullCapturersStack); |
| } |
| |
| if (!isRequestingAllEvents && fullCapturersStack.size() > 0 |
| && fullCapturersStack.getFirst() != oldClientInfo && !allowsDelayedGrant) { |
| // full capturing active. return failed if not delayed granting. |
| return CarInputManager.INPUT_CAPTURE_RESPONSE_FAILED; |
| } |
| // Now we need to register client anyway, so do death monitoring from here. |
| ClientInfoForDisplay newClient = new ClientInfoForDisplay(Binder.getCallingUid(), |
| Binder.getCallingPid(), callback, targetDisplayType, |
| inputTypes, requestFlags); |
| try { |
| newClient.linkToDeath(); |
| } catch (RemoteException e) { |
| // client died |
| Slogf.i(TAG, "requestInputEventCapture, cannot linkToDeath to client, pid:" |
| + Binder.getCallingUid()); |
| return CarInputManager.INPUT_CAPTURE_RESPONSE_FAILED; |
| } |
| |
| SparseArray<LinkedList<ClientInfoForDisplay>> perInputStacks = |
| mPerInputTypeCapturers.get(targetDisplayType); |
| if (perInputStacks == null) { |
| perInputStacks = new SparseArray<LinkedList<ClientInfoForDisplay>>(); |
| mPerInputTypeCapturers.put(targetDisplayType, perInputStacks); |
| } |
| |
| if (isRequestingAllEvents) { |
| if (!fullCapturersStack.isEmpty()) { |
| ClientInfoForDisplay oldCapturer = fullCapturersStack.getFirst(); |
| if (oldCapturer != oldClientInfo) { |
| oldCapturer.mGrantedTypes.clear(); |
| clientsToDispatch.add(oldCapturer); |
| } |
| fullCapturersStack.remove(oldClientInfo); |
| } else { // All per input type top stack client should be notified. |
| for (int i = 0; i < perInputStacks.size(); i++) { |
| LinkedList<ClientInfoForDisplay> perTypeStack = perInputStacks.valueAt(i); |
| if (!perTypeStack.isEmpty()) { |
| ClientInfoForDisplay topClient = perTypeStack.getFirst(); |
| if (topClient != oldClientInfo) { |
| topClient.mGrantedTypes.clear(); |
| clientsToDispatch.add(topClient); |
| } |
| // Even if the client was on top, the one in back does not need |
| // update. |
| perTypeStack.remove(oldClientInfo); |
| } |
| } |
| } |
| fullCapturersStack.addFirst(newClient); |
| |
| } else { |
| boolean hadFullCapture = false; |
| boolean fullCaptureActive = false; |
| if (fullCapturersStack.size() > 0) { |
| if (fullCapturersStack.getFirst() == oldClientInfo) { |
| fullCapturersStack.remove(oldClientInfo); |
| // Now we need to check if there is other client in fullCapturersStack |
| if (fullCapturersStack.size() > 0) { |
| fullCaptureActive = true; |
| ret = CarInputManager.INPUT_CAPTURE_RESPONSE_DELAYED; |
| ClientInfoForDisplay topClient = fullCapturersStack.getFirst(); |
| topClient.mGrantedTypes.clear(); |
| topClient.mGrantedTypes.add(CarInputManager.INPUT_TYPE_ALL_INPUTS); |
| clientsToDispatch.add(topClient); |
| } else { |
| hadFullCapture = true; |
| } |
| } else { |
| // other client doing full capturing and it should have DELAYED_GRANT flag. |
| fullCaptureActive = true; |
| ret = CarInputManager.INPUT_CAPTURE_RESPONSE_DELAYED; |
| } |
| } |
| for (int i = 0; i < perInputStacks.size(); i++) { |
| LinkedList<ClientInfoForDisplay> perInputStack = perInputStacks.valueAt(i); |
| perInputStack.remove(oldClientInfo); |
| } |
| // Now go through per input stack |
| for (int inputType : inputTypes) { |
| LinkedList<ClientInfoForDisplay> perInputStack = perInputStacks.get( |
| inputType); |
| if (perInputStack == null) { |
| perInputStack = new LinkedList<ClientInfoForDisplay>(); |
| perInputStacks.put(inputType, perInputStack); |
| } |
| if (perInputStack.size() > 0) { |
| ClientInfoForDisplay oldTopClient = perInputStack.getFirst(); |
| if (oldTopClient.mGrantedTypes.remove(Integer.valueOf(inputType))) { |
| clientsToDispatch.add(oldTopClient); |
| } |
| } |
| if (!fullCaptureActive) { |
| newClient.mGrantedTypes.add(inputType); |
| } |
| perInputStack.addFirst(newClient); |
| } |
| if (!fullCaptureActive && hadFullCapture) { |
| for (int i = 0; i < perInputStacks.size(); i++) { |
| int inputType = perInputStacks.keyAt(i); |
| LinkedList<ClientInfoForDisplay> perInputStack = perInputStacks.valueAt( |
| i); |
| if (perInputStack.size() > 0) { |
| ClientInfoForDisplay topStackClient = perInputStack.getFirst(); |
| if (topStackClient == newClient) { |
| continue; |
| } |
| if (!topStackClient.mGrantedTypes.contains(inputType)) { |
| topStackClient.mGrantedTypes.add(inputType); |
| clientsToDispatch.add(topStackClient); |
| } |
| } |
| } |
| } |
| } |
| allClientsForDisplay.put(clientBinder, newClient); |
| dispatchClientCallbackLocked(clientsToDispatch); |
| } |
| return ret; |
| } |
| |
| /** |
| * See {@link CarInputManager#releaseInputEventCapture(int)}. |
| */ |
| public void releaseInputEventCapture(ICarInputCallback callback, int targetDisplayType) { |
| Objects.requireNonNull(callback); |
| Preconditions.checkArgument(SUPPORTED_DISPLAY_TYPES.contains(targetDisplayType), |
| "Display not supported yet:" + targetDisplayType); |
| |
| if (DBG_CALLS) { |
| Slogf.i(TAG, "releaseInputEventCapture callback:" + callback |
| + ", display:" + targetDisplayType); |
| } |
| ClientsToDispatch clientsToDispatch = new ClientsToDispatch(targetDisplayType); |
| synchronized (mLock) { |
| HashMap<IBinder, ClientInfoForDisplay> allClientsForDisplay = mAllClients.get( |
| targetDisplayType); |
| ClientInfoForDisplay clientInfo = allClientsForDisplay.remove(callback.asBinder()); |
| if (clientInfo == null) { |
| Slogf.w(TAG, "Cannot find client for releaseInputEventCapture:" + callback); |
| return; |
| } |
| clientInfo.unlinkToDeath(); |
| LinkedList<ClientInfoForDisplay> fullCapturersStack = mFullDisplayEventCapturers.get( |
| targetDisplayType); |
| boolean fullCaptureActive = false; |
| if (fullCapturersStack.size() > 0) { |
| if (fullCapturersStack.getFirst() == clientInfo) { |
| fullCapturersStack.remove(clientInfo); |
| if (fullCapturersStack.size() > 0) { |
| ClientInfoForDisplay newStopStackClient = fullCapturersStack.getFirst(); |
| newStopStackClient.mGrantedTypes.clear(); |
| newStopStackClient.mGrantedTypes.add(CarInputManager.INPUT_TYPE_ALL_INPUTS); |
| clientsToDispatch.add(newStopStackClient); |
| fullCaptureActive = true; |
| } |
| } else { // no notification as other client is in top of the stack |
| fullCaptureActive = true; |
| } |
| fullCapturersStack.remove(clientInfo); |
| } |
| SparseArray<LinkedList<ClientInfoForDisplay>> perInputStacks = |
| mPerInputTypeCapturers.get(targetDisplayType); |
| if (DBG_STACK) { |
| Slogf.i(TAG, "releaseInputEventCapture, fullCaptureActive:" |
| + fullCaptureActive + ", perInputStacks:" + perInputStacks); |
| } |
| if (perInputStacks != null) { |
| for (int i = 0; i < perInputStacks.size(); i++) { |
| int inputType = perInputStacks.keyAt(i); |
| LinkedList<ClientInfoForDisplay> perInputStack = perInputStacks.valueAt(i); |
| if (perInputStack.size() > 0) { |
| if (perInputStack.getFirst() == clientInfo) { |
| perInputStack.removeFirst(); |
| if (perInputStack.size() > 0) { |
| ClientInfoForDisplay newTopClient = perInputStack.getFirst(); |
| if (!fullCaptureActive) { |
| newTopClient.mGrantedTypes.add(inputType); |
| clientsToDispatch.add(newTopClient); |
| } |
| } |
| } else { // something else on top. |
| if (!fullCaptureActive) { |
| ClientInfoForDisplay topClient = perInputStack.getFirst(); |
| if (!topClient.mGrantedTypes.contains(inputType)) { |
| topClient.mGrantedTypes.add(inputType); |
| clientsToDispatch.add(topClient); |
| } |
| } |
| perInputStack.remove(clientInfo); |
| } |
| } |
| } |
| } |
| dispatchClientCallbackLocked(clientsToDispatch); |
| } |
| } |
| |
| /** |
| * Dispatches the given {@code KeyEvent} to a capturing client if there is one. |
| * |
| * @param displayType the display type defined in {@code CarInputManager} such as |
| * {@link CarOccupantZoneManager#DISPLAY_TYPE_MAIN} |
| * @param event the key event to handle |
| * @return true if the event was consumed. |
| */ |
| public boolean onKeyEvent(@DisplayTypeEnum int displayType, KeyEvent event) { |
| if (!SUPPORTED_DISPLAY_TYPES.contains(displayType)) { |
| return false; |
| } |
| Integer inputType = KEY_EVENT_TO_INPUT_TYPE.get(event.getKeyCode()); |
| if (inputType == null) { // not supported key |
| inputType = CarInputManager.INPUT_TYPE_ALL_INPUTS; |
| } |
| ICarInputCallback callback; |
| synchronized (mLock) { |
| callback = getClientForInputTypeLocked(displayType, inputType); |
| if (callback == null) { |
| return false; |
| } |
| mNumKeyEventsDispatched++; |
| } |
| |
| dispatchKeyEvent(displayType, event, callback); |
| return true; |
| } |
| |
| /** |
| * Dispatches the given {@code RotaryEvent} to a capturing client if there is one. |
| * |
| * @param displayType the display type defined in {@code CarInputManager} such as |
| * {@link CarOccupantZoneManager#DISPLAY_TYPE_MAIN} |
| * @param event the Rotary event to handle |
| * @return true if the event was consumed. |
| */ |
| public boolean onRotaryEvent(@DisplayTypeEnum int displayType, RotaryEvent event) { |
| if (!SUPPORTED_DISPLAY_TYPES.contains(displayType)) { |
| Slogf.w(TAG, "onRotaryEvent for not supported display:" + displayType); |
| return false; |
| } |
| int inputType = event.getInputType(); |
| if (!VALID_ROTARY_TYPES.contains(inputType)) { |
| Slogf.w(TAG, "onRotaryEvent for not supported input type:" + inputType); |
| return false; |
| } |
| |
| ICarInputCallback callback; |
| synchronized (mLock) { |
| callback = getClientForInputTypeLocked(displayType, inputType); |
| if (callback == null) { |
| if (DBG_DISPATCH) { |
| Slogf.i(TAG, "onRotaryEvent no client for input type:" + inputType); |
| } |
| return false; |
| } |
| mNumRotaryEventsDispatched++; |
| } |
| |
| dispatchRotaryEvent(displayType, event, callback); |
| return true; |
| } |
| |
| /** |
| * Dispatches the given {@link CustomInputEvent} to a capturing client if there is one. |
| * Nothing happens if no callback was registered for the incoming event. In this case this |
| * method will return {@code false}. |
| * <p> |
| * In case of there are more than one client registered for this event, then only the first one |
| * will be notified. |
| * |
| * @param event the {@link CustomInputEvent} to dispatch |
| * @return {@code true} if the event was consumed. |
| */ |
| public boolean onCustomInputEvent(CustomInputEvent event) { |
| int displayType = event.getTargetDisplayType(); |
| if (!SUPPORTED_DISPLAY_TYPES.contains(displayType)) { |
| Slogf.w(TAG, "onCustomInputEvent for not supported display:" + displayType); |
| return false; |
| } |
| ICarInputCallback callback; |
| synchronized (mLock) { |
| callback = getClientForInputTypeLocked(displayType, |
| CarInputManager.INPUT_TYPE_CUSTOM_INPUT_EVENT); |
| if (callback == null) { |
| Slogf.w(TAG, "No client for input: " + CarInputManager.INPUT_TYPE_CUSTOM_INPUT_EVENT |
| + " and display: " + displayType); |
| return false; |
| } |
| } |
| dispatchCustomInputEvent(displayType, event, callback); |
| return true; |
| } |
| |
| @GuardedBy("mLock") |
| ICarInputCallback getClientForInputTypeLocked(int targetDisplayType, int inputType) { |
| LinkedList<ClientInfoForDisplay> fullCapturersStack = mFullDisplayEventCapturers.get( |
| targetDisplayType); |
| if (fullCapturersStack != null && fullCapturersStack.size() > 0) { |
| return fullCapturersStack.getFirst().mCallback; |
| } |
| |
| SparseArray<LinkedList<ClientInfoForDisplay>> perInputStacks = |
| mPerInputTypeCapturers.get(targetDisplayType); |
| if (perInputStacks == null) { |
| return null; |
| } |
| |
| LinkedList<ClientInfoForDisplay> perInputStack = perInputStacks.get(inputType); |
| if (perInputStack != null && perInputStack.size() > 0) { |
| return perInputStack.getFirst().mCallback; |
| } |
| |
| return null; |
| } |
| |
| private void onClientDeath(ClientInfoForDisplay client) { |
| releaseInputEventCapture(client.mCallback, client.mTargetDisplayType); |
| } |
| |
| /** dump for debugging */ |
| @ExcludeFromCodeCoverageGeneratedReport(reason = DUMP_INFO) |
| public void dump(PrintWriter writer) { |
| writer.println("**InputCaptureClientController**"); |
| synchronized (mLock) { |
| for (int display : SUPPORTED_DISPLAY_TYPES) { |
| writer.println("***Display:" + display); |
| |
| HashMap<IBinder, ClientInfoForDisplay> allClientsForDisplay = mAllClients.get( |
| display); |
| if (allClientsForDisplay != null) { |
| writer.println("****All clients:"); |
| for (ClientInfoForDisplay client : allClientsForDisplay.values()) { |
| writer.println(client); |
| } |
| } |
| |
| LinkedList<ClientInfoForDisplay> fullCapturersStack = |
| mFullDisplayEventCapturers.get(display); |
| if (fullCapturersStack != null) { |
| writer.println("****Full capture stack"); |
| for (ClientInfoForDisplay client : fullCapturersStack) { |
| writer.println(client); |
| } |
| } |
| SparseArray<LinkedList<ClientInfoForDisplay>> perInputStacks = |
| mPerInputTypeCapturers.get(display); |
| if (perInputStacks != null) { |
| for (int i = 0; i < perInputStacks.size(); i++) { |
| int inputType = perInputStacks.keyAt(i); |
| LinkedList<ClientInfoForDisplay> perInputStack = perInputStacks.valueAt(i); |
| if (perInputStack.size() > 0) { |
| writer.println("**** Per Input stack, input type:" + inputType); |
| for (ClientInfoForDisplay client : perInputStack) { |
| writer.println(client); |
| } |
| } |
| } |
| } |
| } |
| writer.println("mNumKeyEventsDispatched:" + mNumKeyEventsDispatched |
| + ",mNumRotaryEventsDispatched:" + mNumRotaryEventsDispatched); |
| } |
| } |
| |
| @GuardedBy("mLock") |
| private void dispatchClientCallbackLocked(ClientsToDispatch clientsToDispatch) { |
| if (clientsToDispatch.mClientsToDispatch.isEmpty()) { |
| return; |
| } |
| if (DBG_DISPATCH) { |
| Slogf.i(TAG, "dispatchClientCallbackLocked, number of clients:" |
| + clientsToDispatch.mClientsToDispatch.size()); |
| } |
| mClientDispatchQueue.add(clientsToDispatch); |
| CarServiceUtils.runOnCommon(() -> { |
| ClientsToDispatch clients; |
| synchronized (mLock) { |
| if (mClientDispatchQueue.isEmpty()) { |
| return; |
| } |
| clients = mClientDispatchQueue.pop(); |
| } |
| |
| if (DBG_DISPATCH) { |
| Slogf.i(TAG, "dispatching to clients, num of clients:" |
| + clients.mClientsToDispatch.size() |
| + ", display:" + clients.mDisplayType); |
| } |
| for (int i = 0; i < clients.mClientsToDispatch.size(); i++) { |
| ICarInputCallback callback = clients.mClientsToDispatch.keyAt(i); |
| int[] inputTypes = clients.mClientsToDispatch.valueAt(i); |
| Arrays.sort(inputTypes); |
| if (DBG_DISPATCH) { |
| Slogf.i(TAG, "dispatching to client, callback:" |
| + callback + ", inputTypes:" + Arrays.toString(inputTypes)); |
| } |
| try { |
| callback.onCaptureStateChanged(clients.mDisplayType, inputTypes); |
| } catch (RemoteException e) { |
| // Ignore. Let death handler deal with it. |
| } |
| } |
| }); |
| } |
| |
| private void dispatchKeyEvent(int targetDisplayType, KeyEvent event, |
| ICarInputCallback callback) { |
| CarServiceUtils.runOnCommon(() -> { |
| mKeyEventDispatchScratchList.clear(); |
| mKeyEventDispatchScratchList.add(event); |
| try { |
| callback.onKeyEvents(targetDisplayType, mKeyEventDispatchScratchList); |
| } catch (RemoteException e) { |
| if (DBG_DISPATCH) { |
| Slogf.e(TAG, "Failed to dispatch KeyEvent " + event, e); |
| } |
| } |
| }); |
| } |
| |
| private void dispatchRotaryEvent(int targetDisplayType, RotaryEvent event, |
| ICarInputCallback callback) { |
| if (DBG_DISPATCH) { |
| Slogf.i(TAG, "dispatchRotaryEvent:" + event); |
| } |
| // TODO(b/159623196): Use HandlerThread for dispatching rather than relying on the main |
| // thread. Change here and other dispatch methods. |
| CarServiceUtils.runOnCommon(() -> { |
| mRotaryEventDispatchScratchList.clear(); |
| mRotaryEventDispatchScratchList.add(event); |
| try { |
| callback.onRotaryEvents(targetDisplayType, mRotaryEventDispatchScratchList); |
| } catch (RemoteException e) { |
| if (DBG_DISPATCH) { |
| Slogf.e(TAG, "Failed to dispatch RotaryEvent " + event, e); |
| } |
| } |
| }); |
| } |
| |
| private void dispatchCustomInputEvent(@DisplayTypeEnum int targetDisplayType, |
| CustomInputEvent event, |
| ICarInputCallback callback) { |
| if (DBG_DISPATCH) { |
| Slogf.d(TAG, "dispatchCustomInputEvent:" + event); |
| } |
| CarServiceUtils.runOnCommon(() -> { |
| mCustomInputEventDispatchScratchList.clear(); |
| mCustomInputEventDispatchScratchList.add(event); |
| try { |
| callback.onCustomInputEvents(targetDisplayType, |
| mCustomInputEventDispatchScratchList); |
| } catch (RemoteException e) { |
| if (DBG_DISPATCH) { |
| Slogf.e(TAG, "Failed to dispatch CustomInputEvent " + event, e); |
| } |
| } |
| }); |
| } |
| |
| private static void assertInputTypeValid(int[] inputTypes) { |
| for (int inputType : inputTypes) { |
| if (!VALID_INPUT_TYPES.contains(inputType)) { |
| throw new IllegalArgumentException("Invalid input type:" + inputType |
| + ", inputTypes:" + Arrays.toString(inputTypes)); |
| } |
| } |
| } |
| } |
