| /* |
| * Copyright (C) 2010 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. |
| */ |
| |
| #define LOG_TAG "InputDispatcher" |
| |
| //#define LOG_NDEBUG 0 |
| |
| // Log detailed debug messages about each inbound event notification to the dispatcher. |
| #define DEBUG_INBOUND_EVENT_DETAILS 0 |
| |
| // Log detailed debug messages about each outbound event processed by the dispatcher. |
| #define DEBUG_OUTBOUND_EVENT_DETAILS 0 |
| |
| // Log debug messages about batching. |
| #define DEBUG_BATCHING 0 |
| |
| // Log debug messages about the dispatch cycle. |
| #define DEBUG_DISPATCH_CYCLE 0 |
| |
| // Log debug messages about registrations. |
| #define DEBUG_REGISTRATION 0 |
| |
| // Log debug messages about performance statistics. |
| #define DEBUG_PERFORMANCE_STATISTICS 0 |
| |
| // Log debug messages about input event injection. |
| #define DEBUG_INJECTION 0 |
| |
| // Log debug messages about input event throttling. |
| #define DEBUG_THROTTLING 0 |
| |
| // Log debug messages about input focus tracking. |
| #define DEBUG_FOCUS 0 |
| |
| // Log debug messages about the app switch latency optimization. |
| #define DEBUG_APP_SWITCH 0 |
| |
| // Log debug messages about hover events. |
| #define DEBUG_HOVER 0 |
| |
| #include "InputDispatcher.h" |
| |
| #include <cutils/log.h> |
| #include <ui/PowerManager.h> |
| |
| #include <stddef.h> |
| #include <unistd.h> |
| #include <errno.h> |
| #include <limits.h> |
| |
| #define INDENT " " |
| #define INDENT2 " " |
| |
| namespace android { |
| |
| // Default input dispatching timeout if there is no focused application or paused window |
| // from which to determine an appropriate dispatching timeout. |
| const nsecs_t DEFAULT_INPUT_DISPATCHING_TIMEOUT = 5000 * 1000000LL; // 5 sec |
| |
| // Amount of time to allow for all pending events to be processed when an app switch |
| // key is on the way. This is used to preempt input dispatch and drop input events |
| // when an application takes too long to respond and the user has pressed an app switch key. |
| const nsecs_t APP_SWITCH_TIMEOUT = 500 * 1000000LL; // 0.5sec |
| |
| // Amount of time to allow for an event to be dispatched (measured since its eventTime) |
| // before considering it stale and dropping it. |
| const nsecs_t STALE_EVENT_TIMEOUT = 10000 * 1000000LL; // 10sec |
| |
| // Motion samples that are received within this amount of time are simply coalesced |
| // when batched instead of being appended. This is done because some drivers update |
| // the location of pointers one at a time instead of all at once. |
| // For example, when there are 10 fingers down, the input dispatcher may receive 10 |
| // samples in quick succession with only one finger's location changed in each sample. |
| // |
| // This value effectively imposes an upper bound on the touch sampling rate. |
| // Touch sensors typically have a 50Hz - 200Hz sampling rate, so we expect distinct |
| // samples to become available 5-20ms apart but individual finger reports can trickle |
| // in over a period of 2-4ms or so. |
| // |
| // Empirical testing shows that a 2ms coalescing interval (500Hz) is not enough, |
| // a 3ms coalescing interval (333Hz) works well most of the time and doesn't introduce |
| // significant quantization noise on current hardware. |
| const nsecs_t MOTION_SAMPLE_COALESCE_INTERVAL = 3 * 1000000LL; // 3ms, 333Hz |
| |
| |
| static inline nsecs_t now() { |
| return systemTime(SYSTEM_TIME_MONOTONIC); |
| } |
| |
| static inline const char* toString(bool value) { |
| return value ? "true" : "false"; |
| } |
| |
| static inline int32_t getMotionEventActionPointerIndex(int32_t action) { |
| return (action & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK) |
| >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT; |
| } |
| |
| static bool isValidKeyAction(int32_t action) { |
| switch (action) { |
| case AKEY_EVENT_ACTION_DOWN: |
| case AKEY_EVENT_ACTION_UP: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static bool validateKeyEvent(int32_t action) { |
| if (! isValidKeyAction(action)) { |
| LOGE("Key event has invalid action code 0x%x", action); |
| return false; |
| } |
| return true; |
| } |
| |
| static bool isValidMotionAction(int32_t action, size_t pointerCount) { |
| switch (action & AMOTION_EVENT_ACTION_MASK) { |
| case AMOTION_EVENT_ACTION_DOWN: |
| case AMOTION_EVENT_ACTION_UP: |
| case AMOTION_EVENT_ACTION_CANCEL: |
| case AMOTION_EVENT_ACTION_MOVE: |
| case AMOTION_EVENT_ACTION_OUTSIDE: |
| case AMOTION_EVENT_ACTION_HOVER_ENTER: |
| case AMOTION_EVENT_ACTION_HOVER_MOVE: |
| case AMOTION_EVENT_ACTION_HOVER_EXIT: |
| case AMOTION_EVENT_ACTION_SCROLL: |
| return true; |
| case AMOTION_EVENT_ACTION_POINTER_DOWN: |
| case AMOTION_EVENT_ACTION_POINTER_UP: { |
| int32_t index = getMotionEventActionPointerIndex(action); |
| return index >= 0 && size_t(index) < pointerCount; |
| } |
| default: |
| return false; |
| } |
| } |
| |
| static bool validateMotionEvent(int32_t action, size_t pointerCount, |
| const PointerProperties* pointerProperties) { |
| if (! isValidMotionAction(action, pointerCount)) { |
| LOGE("Motion event has invalid action code 0x%x", action); |
| return false; |
| } |
| if (pointerCount < 1 || pointerCount > MAX_POINTERS) { |
| LOGE("Motion event has invalid pointer count %d; value must be between 1 and %d.", |
| pointerCount, MAX_POINTERS); |
| return false; |
| } |
| BitSet32 pointerIdBits; |
| for (size_t i = 0; i < pointerCount; i++) { |
| int32_t id = pointerProperties[i].id; |
| if (id < 0 || id > MAX_POINTER_ID) { |
| LOGE("Motion event has invalid pointer id %d; value must be between 0 and %d", |
| id, MAX_POINTER_ID); |
| return false; |
| } |
| if (pointerIdBits.hasBit(id)) { |
| LOGE("Motion event has duplicate pointer id %d", id); |
| return false; |
| } |
| pointerIdBits.markBit(id); |
| } |
| return true; |
| } |
| |
| static void scalePointerCoords(const PointerCoords* inCoords, size_t count, float scaleFactor, |
| PointerCoords* outCoords) { |
| for (size_t i = 0; i < count; i++) { |
| outCoords[i] = inCoords[i]; |
| outCoords[i].scale(scaleFactor); |
| } |
| } |
| |
| static void dumpRegion(String8& dump, const SkRegion& region) { |
| if (region.isEmpty()) { |
| dump.append("<empty>"); |
| return; |
| } |
| |
| bool first = true; |
| for (SkRegion::Iterator it(region); !it.done(); it.next()) { |
| if (first) { |
| first = false; |
| } else { |
| dump.append("|"); |
| } |
| const SkIRect& rect = it.rect(); |
| dump.appendFormat("[%d,%d][%d,%d]", rect.fLeft, rect.fTop, rect.fRight, rect.fBottom); |
| } |
| } |
| |
| |
| // --- InputDispatcher --- |
| |
| InputDispatcher::InputDispatcher(const sp<InputDispatcherPolicyInterface>& policy) : |
| mPolicy(policy), |
| mPendingEvent(NULL), mAppSwitchSawKeyDown(false), mAppSwitchDueTime(LONG_LONG_MAX), |
| mNextUnblockedEvent(NULL), |
| mDispatchEnabled(true), mDispatchFrozen(false), mInputFilterEnabled(false), |
| mCurrentInputTargetsValid(false), |
| mInputTargetWaitCause(INPUT_TARGET_WAIT_CAUSE_NONE) { |
| mLooper = new Looper(false); |
| |
| mKeyRepeatState.lastKeyEntry = NULL; |
| |
| policy->getDispatcherConfiguration(&mConfig); |
| |
| mThrottleState.minTimeBetweenEvents = 1000000000LL / mConfig.maxEventsPerSecond; |
| mThrottleState.lastDeviceId = -1; |
| |
| #if DEBUG_THROTTLING |
| mThrottleState.originalSampleCount = 0; |
| LOGD("Throttling - Max events per second = %d", mConfig.maxEventsPerSecond); |
| #endif |
| } |
| |
| InputDispatcher::~InputDispatcher() { |
| { // acquire lock |
| AutoMutex _l(mLock); |
| |
| resetKeyRepeatLocked(); |
| releasePendingEventLocked(); |
| drainInboundQueueLocked(); |
| } |
| |
| while (mConnectionsByReceiveFd.size() != 0) { |
| unregisterInputChannel(mConnectionsByReceiveFd.valueAt(0)->inputChannel); |
| } |
| } |
| |
| void InputDispatcher::dispatchOnce() { |
| nsecs_t nextWakeupTime = LONG_LONG_MAX; |
| { // acquire lock |
| AutoMutex _l(mLock); |
| dispatchOnceInnerLocked(&nextWakeupTime); |
| |
| if (runCommandsLockedInterruptible()) { |
| nextWakeupTime = LONG_LONG_MIN; // force next poll to wake up immediately |
| } |
| } // release lock |
| |
| // Wait for callback or timeout or wake. (make sure we round up, not down) |
| nsecs_t currentTime = now(); |
| int timeoutMillis = toMillisecondTimeoutDelay(currentTime, nextWakeupTime); |
| mLooper->pollOnce(timeoutMillis); |
| } |
| |
| void InputDispatcher::dispatchOnceInnerLocked(nsecs_t* nextWakeupTime) { |
| nsecs_t currentTime = now(); |
| |
| // Reset the key repeat timer whenever we disallow key events, even if the next event |
| // is not a key. This is to ensure that we abort a key repeat if the device is just coming |
| // out of sleep. |
| if (!mPolicy->isKeyRepeatEnabled()) { |
| resetKeyRepeatLocked(); |
| } |
| |
| // If dispatching is frozen, do not process timeouts or try to deliver any new events. |
| if (mDispatchFrozen) { |
| #if DEBUG_FOCUS |
| LOGD("Dispatch frozen. Waiting some more."); |
| #endif |
| return; |
| } |
| |
| // Optimize latency of app switches. |
| // Essentially we start a short timeout when an app switch key (HOME / ENDCALL) has |
| // been pressed. When it expires, we preempt dispatch and drop all other pending events. |
| bool isAppSwitchDue = mAppSwitchDueTime <= currentTime; |
| if (mAppSwitchDueTime < *nextWakeupTime) { |
| *nextWakeupTime = mAppSwitchDueTime; |
| } |
| |
| // Ready to start a new event. |
| // If we don't already have a pending event, go grab one. |
| if (! mPendingEvent) { |
| if (mInboundQueue.isEmpty()) { |
| if (isAppSwitchDue) { |
| // The inbound queue is empty so the app switch key we were waiting |
| // for will never arrive. Stop waiting for it. |
| resetPendingAppSwitchLocked(false); |
| isAppSwitchDue = false; |
| } |
| |
| // Synthesize a key repeat if appropriate. |
| if (mKeyRepeatState.lastKeyEntry) { |
| if (currentTime >= mKeyRepeatState.nextRepeatTime) { |
| mPendingEvent = synthesizeKeyRepeatLocked(currentTime); |
| } else { |
| if (mKeyRepeatState.nextRepeatTime < *nextWakeupTime) { |
| *nextWakeupTime = mKeyRepeatState.nextRepeatTime; |
| } |
| } |
| } |
| if (! mPendingEvent) { |
| return; |
| } |
| } else { |
| // Inbound queue has at least one entry. |
| EventEntry* entry = mInboundQueue.head; |
| |
| // Throttle the entry if it is a move event and there are no |
| // other events behind it in the queue. Due to movement batching, additional |
| // samples may be appended to this event by the time the throttling timeout |
| // expires. |
| // TODO Make this smarter and consider throttling per device independently. |
| if (entry->type == EventEntry::TYPE_MOTION |
| && !isAppSwitchDue |
| && mDispatchEnabled |
| && (entry->policyFlags & POLICY_FLAG_PASS_TO_USER) |
| && !entry->isInjected()) { |
| MotionEntry* motionEntry = static_cast<MotionEntry*>(entry); |
| int32_t deviceId = motionEntry->deviceId; |
| uint32_t source = motionEntry->source; |
| if (! isAppSwitchDue |
| && !motionEntry->next // exactly one event, no successors |
| && (motionEntry->action == AMOTION_EVENT_ACTION_MOVE |
| || motionEntry->action == AMOTION_EVENT_ACTION_HOVER_MOVE) |
| && deviceId == mThrottleState.lastDeviceId |
| && source == mThrottleState.lastSource) { |
| nsecs_t nextTime = mThrottleState.lastEventTime |
| + mThrottleState.minTimeBetweenEvents; |
| if (currentTime < nextTime) { |
| // Throttle it! |
| #if DEBUG_THROTTLING |
| LOGD("Throttling - Delaying motion event for " |
| "device %d, source 0x%08x by up to %0.3fms.", |
| deviceId, source, (nextTime - currentTime) * 0.000001); |
| #endif |
| if (nextTime < *nextWakeupTime) { |
| *nextWakeupTime = nextTime; |
| } |
| if (mThrottleState.originalSampleCount == 0) { |
| mThrottleState.originalSampleCount = |
| motionEntry->countSamples(); |
| } |
| return; |
| } |
| } |
| |
| #if DEBUG_THROTTLING |
| if (mThrottleState.originalSampleCount != 0) { |
| uint32_t count = motionEntry->countSamples(); |
| LOGD("Throttling - Motion event sample count grew by %d from %d to %d.", |
| count - mThrottleState.originalSampleCount, |
| mThrottleState.originalSampleCount, count); |
| mThrottleState.originalSampleCount = 0; |
| } |
| #endif |
| |
| mThrottleState.lastEventTime = currentTime; |
| mThrottleState.lastDeviceId = deviceId; |
| mThrottleState.lastSource = source; |
| } |
| |
| mInboundQueue.dequeue(entry); |
| mPendingEvent = entry; |
| } |
| |
| // Poke user activity for this event. |
| if (mPendingEvent->policyFlags & POLICY_FLAG_PASS_TO_USER) { |
| pokeUserActivityLocked(mPendingEvent); |
| } |
| } |
| |
| // Now we have an event to dispatch. |
| // All events are eventually dequeued and processed this way, even if we intend to drop them. |
| LOG_ASSERT(mPendingEvent != NULL); |
| bool done = false; |
| DropReason dropReason = DROP_REASON_NOT_DROPPED; |
| if (!(mPendingEvent->policyFlags & POLICY_FLAG_PASS_TO_USER)) { |
| dropReason = DROP_REASON_POLICY; |
| } else if (!mDispatchEnabled) { |
| dropReason = DROP_REASON_DISABLED; |
| } |
| |
| if (mNextUnblockedEvent == mPendingEvent) { |
| mNextUnblockedEvent = NULL; |
| } |
| |
| switch (mPendingEvent->type) { |
| case EventEntry::TYPE_CONFIGURATION_CHANGED: { |
| ConfigurationChangedEntry* typedEntry = |
| static_cast<ConfigurationChangedEntry*>(mPendingEvent); |
| done = dispatchConfigurationChangedLocked(currentTime, typedEntry); |
| dropReason = DROP_REASON_NOT_DROPPED; // configuration changes are never dropped |
| break; |
| } |
| |
| case EventEntry::TYPE_KEY: { |
| KeyEntry* typedEntry = static_cast<KeyEntry*>(mPendingEvent); |
| if (isAppSwitchDue) { |
| if (isAppSwitchKeyEventLocked(typedEntry)) { |
| resetPendingAppSwitchLocked(true); |
| isAppSwitchDue = false; |
| } else if (dropReason == DROP_REASON_NOT_DROPPED) { |
| dropReason = DROP_REASON_APP_SWITCH; |
| } |
| } |
| if (dropReason == DROP_REASON_NOT_DROPPED |
| && isStaleEventLocked(currentTime, typedEntry)) { |
| dropReason = DROP_REASON_STALE; |
| } |
| if (dropReason == DROP_REASON_NOT_DROPPED && mNextUnblockedEvent) { |
| dropReason = DROP_REASON_BLOCKED; |
| } |
| done = dispatchKeyLocked(currentTime, typedEntry, &dropReason, nextWakeupTime); |
| break; |
| } |
| |
| case EventEntry::TYPE_MOTION: { |
| MotionEntry* typedEntry = static_cast<MotionEntry*>(mPendingEvent); |
| if (dropReason == DROP_REASON_NOT_DROPPED && isAppSwitchDue) { |
| dropReason = DROP_REASON_APP_SWITCH; |
| } |
| if (dropReason == DROP_REASON_NOT_DROPPED |
| && isStaleEventLocked(currentTime, typedEntry)) { |
| dropReason = DROP_REASON_STALE; |
| } |
| if (dropReason == DROP_REASON_NOT_DROPPED && mNextUnblockedEvent) { |
| dropReason = DROP_REASON_BLOCKED; |
| } |
| done = dispatchMotionLocked(currentTime, typedEntry, |
| &dropReason, nextWakeupTime); |
| break; |
| } |
| |
| default: |
| LOG_ASSERT(false); |
| break; |
| } |
| |
| if (done) { |
| if (dropReason != DROP_REASON_NOT_DROPPED) { |
| dropInboundEventLocked(mPendingEvent, dropReason); |
| } |
| |
| releasePendingEventLocked(); |
| *nextWakeupTime = LONG_LONG_MIN; // force next poll to wake up immediately |
| } |
| } |
| |
| bool InputDispatcher::enqueueInboundEventLocked(EventEntry* entry) { |
| bool needWake = mInboundQueue.isEmpty(); |
| mInboundQueue.enqueueAtTail(entry); |
| |
| switch (entry->type) { |
| case EventEntry::TYPE_KEY: { |
| // Optimize app switch latency. |
| // If the application takes too long to catch up then we drop all events preceding |
| // the app switch key. |
| KeyEntry* keyEntry = static_cast<KeyEntry*>(entry); |
| if (isAppSwitchKeyEventLocked(keyEntry)) { |
| if (keyEntry->action == AKEY_EVENT_ACTION_DOWN) { |
| mAppSwitchSawKeyDown = true; |
| } else if (keyEntry->action == AKEY_EVENT_ACTION_UP) { |
| if (mAppSwitchSawKeyDown) { |
| #if DEBUG_APP_SWITCH |
| LOGD("App switch is pending!"); |
| #endif |
| mAppSwitchDueTime = keyEntry->eventTime + APP_SWITCH_TIMEOUT; |
| mAppSwitchSawKeyDown = false; |
| needWake = true; |
| } |
| } |
| } |
| break; |
| } |
| |
| case EventEntry::TYPE_MOTION: { |
| // Optimize case where the current application is unresponsive and the user |
| // decides to touch a window in a different application. |
| // If the application takes too long to catch up then we drop all events preceding |
| // the touch into the other window. |
| MotionEntry* motionEntry = static_cast<MotionEntry*>(entry); |
| if (motionEntry->action == AMOTION_EVENT_ACTION_DOWN |
| && (motionEntry->source & AINPUT_SOURCE_CLASS_POINTER) |
| && mInputTargetWaitCause == INPUT_TARGET_WAIT_CAUSE_APPLICATION_NOT_READY |
| && mInputTargetWaitApplicationHandle != NULL) { |
| int32_t x = int32_t(motionEntry->firstSample.pointerCoords[0]. |
| getAxisValue(AMOTION_EVENT_AXIS_X)); |
| int32_t y = int32_t(motionEntry->firstSample.pointerCoords[0]. |
| getAxisValue(AMOTION_EVENT_AXIS_Y)); |
| sp<InputWindowHandle> touchedWindowHandle = findTouchedWindowAtLocked(x, y); |
| if (touchedWindowHandle != NULL |
| && touchedWindowHandle->inputApplicationHandle |
| != mInputTargetWaitApplicationHandle) { |
| // User touched a different application than the one we are waiting on. |
| // Flag the event, and start pruning the input queue. |
| mNextUnblockedEvent = motionEntry; |
| needWake = true; |
| } |
| } |
| break; |
| } |
| } |
| |
| return needWake; |
| } |
| |
| sp<InputWindowHandle> InputDispatcher::findTouchedWindowAtLocked(int32_t x, int32_t y) { |
| // Traverse windows from front to back to find touched window. |
| size_t numWindows = mWindowHandles.size(); |
| for (size_t i = 0; i < numWindows; i++) { |
| sp<InputWindowHandle> windowHandle = mWindowHandles.itemAt(i); |
| int32_t flags = windowHandle->layoutParamsFlags; |
| |
| if (windowHandle->visible) { |
| if (!(flags & InputWindowHandle::FLAG_NOT_TOUCHABLE)) { |
| bool isTouchModal = (flags & (InputWindowHandle::FLAG_NOT_FOCUSABLE |
| | InputWindowHandle::FLAG_NOT_TOUCH_MODAL)) == 0; |
| if (isTouchModal || windowHandle->touchableRegionContainsPoint(x, y)) { |
| // Found window. |
| return windowHandle; |
| } |
| } |
| } |
| |
| if (flags & InputWindowHandle::FLAG_SYSTEM_ERROR) { |
| // Error window is on top but not visible, so touch is dropped. |
| return NULL; |
| } |
| } |
| return NULL; |
| } |
| |
| void InputDispatcher::dropInboundEventLocked(EventEntry* entry, DropReason dropReason) { |
| const char* reason; |
| switch (dropReason) { |
| case DROP_REASON_POLICY: |
| #if DEBUG_INBOUND_EVENT_DETAILS |
| LOGD("Dropped event because policy consumed it."); |
| #endif |
| reason = "inbound event was dropped because the policy consumed it"; |
| break; |
| case DROP_REASON_DISABLED: |
| LOGI("Dropped event because input dispatch is disabled."); |
| reason = "inbound event was dropped because input dispatch is disabled"; |
| break; |
| case DROP_REASON_APP_SWITCH: |
| LOGI("Dropped event because of pending overdue app switch."); |
| reason = "inbound event was dropped because of pending overdue app switch"; |
| break; |
| case DROP_REASON_BLOCKED: |
| LOGI("Dropped event because the current application is not responding and the user " |
| "has started interacting with a different application."); |
| reason = "inbound event was dropped because the current application is not responding " |
| "and the user has started interacting with a different application"; |
| break; |
| case DROP_REASON_STALE: |
| LOGI("Dropped event because it is stale."); |
| reason = "inbound event was dropped because it is stale"; |
| break; |
| default: |
| LOG_ASSERT(false); |
| return; |
| } |
| |
| switch (entry->type) { |
| case EventEntry::TYPE_KEY: { |
| CancelationOptions options(CancelationOptions::CANCEL_NON_POINTER_EVENTS, reason); |
| synthesizeCancelationEventsForAllConnectionsLocked(options); |
| break; |
| } |
| case EventEntry::TYPE_MOTION: { |
| MotionEntry* motionEntry = static_cast<MotionEntry*>(entry); |
| if (motionEntry->source & AINPUT_SOURCE_CLASS_POINTER) { |
| CancelationOptions options(CancelationOptions::CANCEL_POINTER_EVENTS, reason); |
| synthesizeCancelationEventsForAllConnectionsLocked(options); |
| } else { |
| CancelationOptions options(CancelationOptions::CANCEL_NON_POINTER_EVENTS, reason); |
| synthesizeCancelationEventsForAllConnectionsLocked(options); |
| } |
| break; |
| } |
| } |
| } |
| |
| bool InputDispatcher::isAppSwitchKeyCode(int32_t keyCode) { |
| return keyCode == AKEYCODE_HOME || keyCode == AKEYCODE_ENDCALL; |
| } |
| |
| bool InputDispatcher::isAppSwitchKeyEventLocked(KeyEntry* keyEntry) { |
| return ! (keyEntry->flags & AKEY_EVENT_FLAG_CANCELED) |
| && isAppSwitchKeyCode(keyEntry->keyCode) |
| && (keyEntry->policyFlags & POLICY_FLAG_TRUSTED) |
| && (keyEntry->policyFlags & POLICY_FLAG_PASS_TO_USER); |
| } |
| |
| bool InputDispatcher::isAppSwitchPendingLocked() { |
| return mAppSwitchDueTime != LONG_LONG_MAX; |
| } |
| |
| void InputDispatcher::resetPendingAppSwitchLocked(bool handled) { |
| mAppSwitchDueTime = LONG_LONG_MAX; |
| |
| #if DEBUG_APP_SWITCH |
| if (handled) { |
| LOGD("App switch has arrived."); |
| } else { |
| LOGD("App switch was abandoned."); |
| } |
| #endif |
| } |
| |
| bool InputDispatcher::isStaleEventLocked(nsecs_t currentTime, EventEntry* entry) { |
| return currentTime - entry->eventTime >= STALE_EVENT_TIMEOUT; |
| } |
| |
| bool InputDispatcher::runCommandsLockedInterruptible() { |
| if (mCommandQueue.isEmpty()) { |
| return false; |
| } |
| |
| do { |
| CommandEntry* commandEntry = mCommandQueue.dequeueAtHead(); |
| |
| Command command = commandEntry->command; |
| (this->*command)(commandEntry); // commands are implicitly 'LockedInterruptible' |
| |
| commandEntry->connection.clear(); |
| delete commandEntry; |
| } while (! mCommandQueue.isEmpty()); |
| return true; |
| } |
| |
| InputDispatcher::CommandEntry* InputDispatcher::postCommandLocked(Command command) { |
| CommandEntry* commandEntry = new CommandEntry(command); |
| mCommandQueue.enqueueAtTail(commandEntry); |
| return commandEntry; |
| } |
| |
| void InputDispatcher::drainInboundQueueLocked() { |
| while (! mInboundQueue.isEmpty()) { |
| EventEntry* entry = mInboundQueue.dequeueAtHead(); |
| releaseInboundEventLocked(entry); |
| } |
| } |
| |
| void InputDispatcher::releasePendingEventLocked() { |
| if (mPendingEvent) { |
| releaseInboundEventLocked(mPendingEvent); |
| mPendingEvent = NULL; |
| } |
| } |
| |
| void InputDispatcher::releaseInboundEventLocked(EventEntry* entry) { |
| InjectionState* injectionState = entry->injectionState; |
| if (injectionState && injectionState->injectionResult == INPUT_EVENT_INJECTION_PENDING) { |
| #if DEBUG_DISPATCH_CYCLE |
| LOGD("Injected inbound event was dropped."); |
| #endif |
| setInjectionResultLocked(entry, INPUT_EVENT_INJECTION_FAILED); |
| } |
| entry->release(); |
| } |
| |
| void InputDispatcher::resetKeyRepeatLocked() { |
| if (mKeyRepeatState.lastKeyEntry) { |
| mKeyRepeatState.lastKeyEntry->release(); |
| mKeyRepeatState.lastKeyEntry = NULL; |
| } |
| } |
| |
| InputDispatcher::KeyEntry* InputDispatcher::synthesizeKeyRepeatLocked(nsecs_t currentTime) { |
| KeyEntry* entry = mKeyRepeatState.lastKeyEntry; |
| |
| // Reuse the repeated key entry if it is otherwise unreferenced. |
| uint32_t policyFlags = (entry->policyFlags & POLICY_FLAG_RAW_MASK) |
| | POLICY_FLAG_PASS_TO_USER | POLICY_FLAG_TRUSTED; |
| if (entry->refCount == 1) { |
| entry->recycle(); |
| entry->eventTime = currentTime; |
| entry->policyFlags = policyFlags; |
| entry->repeatCount += 1; |
| } else { |
| KeyEntry* newEntry = new KeyEntry(currentTime, |
| entry->deviceId, entry->source, policyFlags, |
| entry->action, entry->flags, entry->keyCode, entry->scanCode, |
| entry->metaState, entry->repeatCount + 1, entry->downTime); |
| |
| mKeyRepeatState.lastKeyEntry = newEntry; |
| entry->release(); |
| |
| entry = newEntry; |
| } |
| entry->syntheticRepeat = true; |
| |
| // Increment reference count since we keep a reference to the event in |
| // mKeyRepeatState.lastKeyEntry in addition to the one we return. |
| entry->refCount += 1; |
| |
| mKeyRepeatState.nextRepeatTime = currentTime + mConfig.keyRepeatDelay; |
| return entry; |
| } |
| |
| bool InputDispatcher::dispatchConfigurationChangedLocked( |
| nsecs_t currentTime, ConfigurationChangedEntry* entry) { |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| LOGD("dispatchConfigurationChanged - eventTime=%lld", entry->eventTime); |
| #endif |
| |
| // Reset key repeating in case a keyboard device was added or removed or something. |
| resetKeyRepeatLocked(); |
| |
| // Enqueue a command to run outside the lock to tell the policy that the configuration changed. |
| CommandEntry* commandEntry = postCommandLocked( |
| & InputDispatcher::doNotifyConfigurationChangedInterruptible); |
| commandEntry->eventTime = entry->eventTime; |
| return true; |
| } |
| |
| bool InputDispatcher::dispatchKeyLocked(nsecs_t currentTime, KeyEntry* entry, |
| DropReason* dropReason, nsecs_t* nextWakeupTime) { |
| // Preprocessing. |
| if (! entry->dispatchInProgress) { |
| if (entry->repeatCount == 0 |
| && entry->action == AKEY_EVENT_ACTION_DOWN |
| && (entry->policyFlags & POLICY_FLAG_TRUSTED) |
| && (!(entry->policyFlags & POLICY_FLAG_DISABLE_KEY_REPEAT))) { |
| if (mKeyRepeatState.lastKeyEntry |
| && mKeyRepeatState.lastKeyEntry->keyCode == entry->keyCode) { |
| // We have seen two identical key downs in a row which indicates that the device |
| // driver is automatically generating key repeats itself. We take note of the |
| // repeat here, but we disable our own next key repeat timer since it is clear that |
| // we will not need to synthesize key repeats ourselves. |
| entry->repeatCount = mKeyRepeatState.lastKeyEntry->repeatCount + 1; |
| resetKeyRepeatLocked(); |
| mKeyRepeatState.nextRepeatTime = LONG_LONG_MAX; // don't generate repeats ourselves |
| } else { |
| // Not a repeat. Save key down state in case we do see a repeat later. |
| resetKeyRepeatLocked(); |
| mKeyRepeatState.nextRepeatTime = entry->eventTime + mConfig.keyRepeatTimeout; |
| } |
| mKeyRepeatState.lastKeyEntry = entry; |
| entry->refCount += 1; |
| } else if (! entry->syntheticRepeat) { |
| resetKeyRepeatLocked(); |
| } |
| |
| if (entry->repeatCount == 1) { |
| entry->flags |= AKEY_EVENT_FLAG_LONG_PRESS; |
| } else { |
| entry->flags &= ~AKEY_EVENT_FLAG_LONG_PRESS; |
| } |
| |
| entry->dispatchInProgress = true; |
| resetTargetsLocked(); |
| |
| logOutboundKeyDetailsLocked("dispatchKey - ", entry); |
| } |
| |
| // Give the policy a chance to intercept the key. |
| if (entry->interceptKeyResult == KeyEntry::INTERCEPT_KEY_RESULT_UNKNOWN) { |
| if (entry->policyFlags & POLICY_FLAG_PASS_TO_USER) { |
| CommandEntry* commandEntry = postCommandLocked( |
| & InputDispatcher::doInterceptKeyBeforeDispatchingLockedInterruptible); |
| if (mFocusedWindowHandle != NULL) { |
| commandEntry->inputWindowHandle = mFocusedWindowHandle; |
| } |
| commandEntry->keyEntry = entry; |
| entry->refCount += 1; |
| return false; // wait for the command to run |
| } else { |
| entry->interceptKeyResult = KeyEntry::INTERCEPT_KEY_RESULT_CONTINUE; |
| } |
| } else if (entry->interceptKeyResult == KeyEntry::INTERCEPT_KEY_RESULT_SKIP) { |
| if (*dropReason == DROP_REASON_NOT_DROPPED) { |
| *dropReason = DROP_REASON_POLICY; |
| } |
| } |
| |
| // Clean up if dropping the event. |
| if (*dropReason != DROP_REASON_NOT_DROPPED) { |
| resetTargetsLocked(); |
| setInjectionResultLocked(entry, *dropReason == DROP_REASON_POLICY |
| ? INPUT_EVENT_INJECTION_SUCCEEDED : INPUT_EVENT_INJECTION_FAILED); |
| return true; |
| } |
| |
| // Identify targets. |
| if (! mCurrentInputTargetsValid) { |
| int32_t injectionResult = findFocusedWindowTargetsLocked(currentTime, |
| entry, nextWakeupTime); |
| if (injectionResult == INPUT_EVENT_INJECTION_PENDING) { |
| return false; |
| } |
| |
| setInjectionResultLocked(entry, injectionResult); |
| if (injectionResult != INPUT_EVENT_INJECTION_SUCCEEDED) { |
| return true; |
| } |
| |
| addMonitoringTargetsLocked(); |
| commitTargetsLocked(); |
| } |
| |
| // Dispatch the key. |
| dispatchEventToCurrentInputTargetsLocked(currentTime, entry, false); |
| return true; |
| } |
| |
| void InputDispatcher::logOutboundKeyDetailsLocked(const char* prefix, const KeyEntry* entry) { |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| LOGD("%seventTime=%lld, deviceId=%d, source=0x%x, policyFlags=0x%x, " |
| "action=0x%x, flags=0x%x, keyCode=0x%x, scanCode=0x%x, metaState=0x%x, " |
| "repeatCount=%d, downTime=%lld", |
| prefix, |
| entry->eventTime, entry->deviceId, entry->source, entry->policyFlags, |
| entry->action, entry->flags, entry->keyCode, entry->scanCode, entry->metaState, |
| entry->repeatCount, entry->downTime); |
| #endif |
| } |
| |
| bool InputDispatcher::dispatchMotionLocked( |
| nsecs_t currentTime, MotionEntry* entry, DropReason* dropReason, nsecs_t* nextWakeupTime) { |
| // Preprocessing. |
| if (! entry->dispatchInProgress) { |
| entry->dispatchInProgress = true; |
| resetTargetsLocked(); |
| |
| logOutboundMotionDetailsLocked("dispatchMotion - ", entry); |
| } |
| |
| // Clean up if dropping the event. |
| if (*dropReason != DROP_REASON_NOT_DROPPED) { |
| resetTargetsLocked(); |
| setInjectionResultLocked(entry, *dropReason == DROP_REASON_POLICY |
| ? INPUT_EVENT_INJECTION_SUCCEEDED : INPUT_EVENT_INJECTION_FAILED); |
| return true; |
| } |
| |
| bool isPointerEvent = entry->source & AINPUT_SOURCE_CLASS_POINTER; |
| |
| // Identify targets. |
| bool conflictingPointerActions = false; |
| if (! mCurrentInputTargetsValid) { |
| int32_t injectionResult; |
| const MotionSample* splitBatchAfterSample = NULL; |
| if (isPointerEvent) { |
| // Pointer event. (eg. touchscreen) |
| injectionResult = findTouchedWindowTargetsLocked(currentTime, |
| entry, nextWakeupTime, &conflictingPointerActions, &splitBatchAfterSample); |
| } else { |
| // Non touch event. (eg. trackball) |
| injectionResult = findFocusedWindowTargetsLocked(currentTime, |
| entry, nextWakeupTime); |
| } |
| if (injectionResult == INPUT_EVENT_INJECTION_PENDING) { |
| return false; |
| } |
| |
| setInjectionResultLocked(entry, injectionResult); |
| if (injectionResult != INPUT_EVENT_INJECTION_SUCCEEDED) { |
| return true; |
| } |
| |
| addMonitoringTargetsLocked(); |
| commitTargetsLocked(); |
| |
| // Unbatch the event if necessary by splitting it into two parts after the |
| // motion sample indicated by splitBatchAfterSample. |
| if (splitBatchAfterSample && splitBatchAfterSample->next) { |
| #if DEBUG_BATCHING |
| uint32_t originalSampleCount = entry->countSamples(); |
| #endif |
| MotionSample* nextSample = splitBatchAfterSample->next; |
| MotionEntry* nextEntry = new MotionEntry(nextSample->eventTime, |
| entry->deviceId, entry->source, entry->policyFlags, |
| entry->action, entry->flags, |
| entry->metaState, entry->buttonState, entry->edgeFlags, |
| entry->xPrecision, entry->yPrecision, entry->downTime, |
| entry->pointerCount, entry->pointerProperties, nextSample->pointerCoords); |
| if (nextSample != entry->lastSample) { |
| nextEntry->firstSample.next = nextSample->next; |
| nextEntry->lastSample = entry->lastSample; |
| } |
| delete nextSample; |
| |
| entry->lastSample = const_cast<MotionSample*>(splitBatchAfterSample); |
| entry->lastSample->next = NULL; |
| |
| if (entry->injectionState) { |
| nextEntry->injectionState = entry->injectionState; |
| entry->injectionState->refCount += 1; |
| } |
| |
| #if DEBUG_BATCHING |
| LOGD("Split batch of %d samples into two parts, first part has %d samples, " |
| "second part has %d samples.", originalSampleCount, |
| entry->countSamples(), nextEntry->countSamples()); |
| #endif |
| |
| mInboundQueue.enqueueAtHead(nextEntry); |
| } |
| } |
| |
| // Dispatch the motion. |
| if (conflictingPointerActions) { |
| CancelationOptions options(CancelationOptions::CANCEL_POINTER_EVENTS, |
| "conflicting pointer actions"); |
| synthesizeCancelationEventsForAllConnectionsLocked(options); |
| } |
| dispatchEventToCurrentInputTargetsLocked(currentTime, entry, false); |
| return true; |
| } |
| |
| |
| void InputDispatcher::logOutboundMotionDetailsLocked(const char* prefix, const MotionEntry* entry) { |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| LOGD("%seventTime=%lld, deviceId=%d, source=0x%x, policyFlags=0x%x, " |
| "action=0x%x, flags=0x%x, " |
| "metaState=0x%x, buttonState=0x%x, " |
| "edgeFlags=0x%x, xPrecision=%f, yPrecision=%f, downTime=%lld", |
| prefix, |
| entry->eventTime, entry->deviceId, entry->source, entry->policyFlags, |
| entry->action, entry->flags, |
| entry->metaState, entry->buttonState, |
| entry->edgeFlags, entry->xPrecision, entry->yPrecision, |
| entry->downTime); |
| |
| // Print the most recent sample that we have available, this may change due to batching. |
| size_t sampleCount = 1; |
| const MotionSample* sample = & entry->firstSample; |
| for (; sample->next != NULL; sample = sample->next) { |
| sampleCount += 1; |
| } |
| for (uint32_t i = 0; i < entry->pointerCount; i++) { |
| LOGD(" Pointer %d: id=%d, toolType=%d, " |
| "x=%f, y=%f, pressure=%f, size=%f, " |
| "touchMajor=%f, touchMinor=%f, toolMajor=%f, toolMinor=%f, " |
| "orientation=%f", |
| i, entry->pointerProperties[i].id, |
| entry->pointerProperties[i].toolType, |
| sample->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_X), |
| sample->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_Y), |
| sample->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_PRESSURE), |
| sample->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_SIZE), |
| sample->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR), |
| sample->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR), |
| sample->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR), |
| sample->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR), |
| sample->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION)); |
| } |
| |
| // Keep in mind that due to batching, it is possible for the number of samples actually |
| // dispatched to change before the application finally consumed them. |
| if (entry->action == AMOTION_EVENT_ACTION_MOVE) { |
| LOGD(" ... Total movement samples currently batched %d ...", sampleCount); |
| } |
| #endif |
| } |
| |
| void InputDispatcher::dispatchEventToCurrentInputTargetsLocked(nsecs_t currentTime, |
| EventEntry* eventEntry, bool resumeWithAppendedMotionSample) { |
| #if DEBUG_DISPATCH_CYCLE |
| LOGD("dispatchEventToCurrentInputTargets - " |
| "resumeWithAppendedMotionSample=%s", |
| toString(resumeWithAppendedMotionSample)); |
| #endif |
| |
| LOG_ASSERT(eventEntry->dispatchInProgress); // should already have been set to true |
| |
| pokeUserActivityLocked(eventEntry); |
| |
| for (size_t i = 0; i < mCurrentInputTargets.size(); i++) { |
| const InputTarget& inputTarget = mCurrentInputTargets.itemAt(i); |
| |
| ssize_t connectionIndex = getConnectionIndexLocked(inputTarget.inputChannel); |
| if (connectionIndex >= 0) { |
| sp<Connection> connection = mConnectionsByReceiveFd.valueAt(connectionIndex); |
| prepareDispatchCycleLocked(currentTime, connection, eventEntry, & inputTarget, |
| resumeWithAppendedMotionSample); |
| } else { |
| #if DEBUG_FOCUS |
| LOGD("Dropping event delivery to target with channel '%s' because it " |
| "is no longer registered with the input dispatcher.", |
| inputTarget.inputChannel->getName().string()); |
| #endif |
| } |
| } |
| } |
| |
| void InputDispatcher::resetTargetsLocked() { |
| mCurrentInputTargetsValid = false; |
| mCurrentInputTargets.clear(); |
| resetANRTimeoutsLocked(); |
| } |
| |
| void InputDispatcher::commitTargetsLocked() { |
| mCurrentInputTargetsValid = true; |
| } |
| |
| int32_t InputDispatcher::handleTargetsNotReadyLocked(nsecs_t currentTime, |
| const EventEntry* entry, |
| const sp<InputApplicationHandle>& applicationHandle, |
| const sp<InputWindowHandle>& windowHandle, |
| nsecs_t* nextWakeupTime) { |
| if (applicationHandle == NULL && windowHandle == NULL) { |
| if (mInputTargetWaitCause != INPUT_TARGET_WAIT_CAUSE_SYSTEM_NOT_READY) { |
| #if DEBUG_FOCUS |
| LOGD("Waiting for system to become ready for input."); |
| #endif |
| mInputTargetWaitCause = INPUT_TARGET_WAIT_CAUSE_SYSTEM_NOT_READY; |
| mInputTargetWaitStartTime = currentTime; |
| mInputTargetWaitTimeoutTime = LONG_LONG_MAX; |
| mInputTargetWaitTimeoutExpired = false; |
| mInputTargetWaitApplicationHandle.clear(); |
| } |
| } else { |
| if (mInputTargetWaitCause != INPUT_TARGET_WAIT_CAUSE_APPLICATION_NOT_READY) { |
| #if DEBUG_FOCUS |
| LOGD("Waiting for application to become ready for input: %s", |
| getApplicationWindowLabelLocked(applicationHandle, windowHandle).string()); |
| #endif |
| nsecs_t timeout = windowHandle != NULL ? windowHandle->dispatchingTimeout : |
| applicationHandle != NULL ? |
| applicationHandle->dispatchingTimeout : DEFAULT_INPUT_DISPATCHING_TIMEOUT; |
| |
| mInputTargetWaitCause = INPUT_TARGET_WAIT_CAUSE_APPLICATION_NOT_READY; |
| mInputTargetWaitStartTime = currentTime; |
| mInputTargetWaitTimeoutTime = currentTime + timeout; |
| mInputTargetWaitTimeoutExpired = false; |
| mInputTargetWaitApplicationHandle.clear(); |
| |
| if (windowHandle != NULL) { |
| mInputTargetWaitApplicationHandle = windowHandle->inputApplicationHandle; |
| } |
| if (mInputTargetWaitApplicationHandle == NULL && applicationHandle != NULL) { |
| mInputTargetWaitApplicationHandle = applicationHandle; |
| } |
| } |
| } |
| |
| if (mInputTargetWaitTimeoutExpired) { |
| return INPUT_EVENT_INJECTION_TIMED_OUT; |
| } |
| |
| if (currentTime >= mInputTargetWaitTimeoutTime) { |
| onANRLocked(currentTime, applicationHandle, windowHandle, |
| entry->eventTime, mInputTargetWaitStartTime); |
| |
| // Force poll loop to wake up immediately on next iteration once we get the |
| // ANR response back from the policy. |
| *nextWakeupTime = LONG_LONG_MIN; |
| return INPUT_EVENT_INJECTION_PENDING; |
| } else { |
| // Force poll loop to wake up when timeout is due. |
| if (mInputTargetWaitTimeoutTime < *nextWakeupTime) { |
| *nextWakeupTime = mInputTargetWaitTimeoutTime; |
| } |
| return INPUT_EVENT_INJECTION_PENDING; |
| } |
| } |
| |
| void InputDispatcher::resumeAfterTargetsNotReadyTimeoutLocked(nsecs_t newTimeout, |
| const sp<InputChannel>& inputChannel) { |
| if (newTimeout > 0) { |
| // Extend the timeout. |
| mInputTargetWaitTimeoutTime = now() + newTimeout; |
| } else { |
| // Give up. |
| mInputTargetWaitTimeoutExpired = true; |
| |
| // Release the touch targets. |
| mTouchState.reset(); |
| |
| // Input state will not be realistic. Mark it out of sync. |
| if (inputChannel.get()) { |
| ssize_t connectionIndex = getConnectionIndexLocked(inputChannel); |
| if (connectionIndex >= 0) { |
| sp<Connection> connection = mConnectionsByReceiveFd.valueAt(connectionIndex); |
| if (connection->status == Connection::STATUS_NORMAL) { |
| CancelationOptions options(CancelationOptions::CANCEL_ALL_EVENTS, |
| "application not responding"); |
| synthesizeCancelationEventsForConnectionLocked(connection, options); |
| } |
| } |
| } |
| } |
| } |
| |
| nsecs_t InputDispatcher::getTimeSpentWaitingForApplicationLocked( |
| nsecs_t currentTime) { |
| if (mInputTargetWaitCause == INPUT_TARGET_WAIT_CAUSE_APPLICATION_NOT_READY) { |
| return currentTime - mInputTargetWaitStartTime; |
| } |
| return 0; |
| } |
| |
| void InputDispatcher::resetANRTimeoutsLocked() { |
| #if DEBUG_FOCUS |
| LOGD("Resetting ANR timeouts."); |
| #endif |
| |
| // Reset input target wait timeout. |
| mInputTargetWaitCause = INPUT_TARGET_WAIT_CAUSE_NONE; |
| mInputTargetWaitApplicationHandle.clear(); |
| } |
| |
| int32_t InputDispatcher::findFocusedWindowTargetsLocked(nsecs_t currentTime, |
| const EventEntry* entry, nsecs_t* nextWakeupTime) { |
| mCurrentInputTargets.clear(); |
| |
| int32_t injectionResult; |
| |
| // If there is no currently focused window and no focused application |
| // then drop the event. |
| if (mFocusedWindowHandle == NULL) { |
| if (mFocusedApplicationHandle != NULL) { |
| #if DEBUG_FOCUS |
| LOGD("Waiting because there is no focused window but there is a " |
| "focused application that may eventually add a window: %s.", |
| getApplicationWindowLabelLocked(mFocusedApplicationHandle, NULL).string()); |
| #endif |
| injectionResult = handleTargetsNotReadyLocked(currentTime, entry, |
| mFocusedApplicationHandle, NULL, nextWakeupTime); |
| goto Unresponsive; |
| } |
| |
| LOGI("Dropping event because there is no focused window or focused application."); |
| injectionResult = INPUT_EVENT_INJECTION_FAILED; |
| goto Failed; |
| } |
| |
| // Check permissions. |
| if (! checkInjectionPermission(mFocusedWindowHandle, entry->injectionState)) { |
| injectionResult = INPUT_EVENT_INJECTION_PERMISSION_DENIED; |
| goto Failed; |
| } |
| |
| // If the currently focused window is paused then keep waiting. |
| if (mFocusedWindowHandle->paused) { |
| #if DEBUG_FOCUS |
| LOGD("Waiting because focused window is paused."); |
| #endif |
| injectionResult = handleTargetsNotReadyLocked(currentTime, entry, |
| mFocusedApplicationHandle, mFocusedWindowHandle, nextWakeupTime); |
| goto Unresponsive; |
| } |
| |
| // If the currently focused window is still working on previous events then keep waiting. |
| if (! isWindowFinishedWithPreviousInputLocked(mFocusedWindowHandle)) { |
| #if DEBUG_FOCUS |
| LOGD("Waiting because focused window still processing previous input."); |
| #endif |
| injectionResult = handleTargetsNotReadyLocked(currentTime, entry, |
| mFocusedApplicationHandle, mFocusedWindowHandle, nextWakeupTime); |
| goto Unresponsive; |
| } |
| |
| // Success! Output targets. |
| injectionResult = INPUT_EVENT_INJECTION_SUCCEEDED; |
| addWindowTargetLocked(mFocusedWindowHandle, |
| InputTarget::FLAG_FOREGROUND | InputTarget::FLAG_DISPATCH_AS_IS, BitSet32(0)); |
| |
| // Done. |
| Failed: |
| Unresponsive: |
| nsecs_t timeSpentWaitingForApplication = getTimeSpentWaitingForApplicationLocked(currentTime); |
| updateDispatchStatisticsLocked(currentTime, entry, |
| injectionResult, timeSpentWaitingForApplication); |
| #if DEBUG_FOCUS |
| LOGD("findFocusedWindow finished: injectionResult=%d, " |
| "timeSpendWaitingForApplication=%0.1fms", |
| injectionResult, timeSpentWaitingForApplication / 1000000.0); |
| #endif |
| return injectionResult; |
| } |
| |
| int32_t InputDispatcher::findTouchedWindowTargetsLocked(nsecs_t currentTime, |
| const MotionEntry* entry, nsecs_t* nextWakeupTime, bool* outConflictingPointerActions, |
| const MotionSample** outSplitBatchAfterSample) { |
| enum InjectionPermission { |
| INJECTION_PERMISSION_UNKNOWN, |
| INJECTION_PERMISSION_GRANTED, |
| INJECTION_PERMISSION_DENIED |
| }; |
| |
| mCurrentInputTargets.clear(); |
| |
| nsecs_t startTime = now(); |
| |
| // For security reasons, we defer updating the touch state until we are sure that |
| // event injection will be allowed. |
| // |
| // FIXME In the original code, screenWasOff could never be set to true. |
| // The reason is that the POLICY_FLAG_WOKE_HERE |
| // and POLICY_FLAG_BRIGHT_HERE flags were set only when preprocessing raw |
| // EV_KEY, EV_REL and EV_ABS events. As it happens, the touch event was |
| // actually enqueued using the policyFlags that appeared in the final EV_SYN |
| // events upon which no preprocessing took place. So policyFlags was always 0. |
| // In the new native input dispatcher we're a bit more careful about event |
| // preprocessing so the touches we receive can actually have non-zero policyFlags. |
| // Unfortunately we obtain undesirable behavior. |
| // |
| // Here's what happens: |
| // |
| // When the device dims in anticipation of going to sleep, touches |
| // in windows which have FLAG_TOUCHABLE_WHEN_WAKING cause |
| // the device to brighten and reset the user activity timer. |
| // Touches on other windows (such as the launcher window) |
| // are dropped. Then after a moment, the device goes to sleep. Oops. |
| // |
| // Also notice how screenWasOff was being initialized using POLICY_FLAG_BRIGHT_HERE |
| // instead of POLICY_FLAG_WOKE_HERE... |
| // |
| bool screenWasOff = false; // original policy: policyFlags & POLICY_FLAG_BRIGHT_HERE; |
| |
| int32_t action = entry->action; |
| int32_t maskedAction = action & AMOTION_EVENT_ACTION_MASK; |
| |
| // Update the touch state as needed based on the properties of the touch event. |
| int32_t injectionResult = INPUT_EVENT_INJECTION_PENDING; |
| InjectionPermission injectionPermission = INJECTION_PERMISSION_UNKNOWN; |
| sp<InputWindowHandle> newHoverWindowHandle; |
| |
| bool isSplit = mTouchState.split; |
| bool switchedDevice = mTouchState.deviceId >= 0 |
| && (mTouchState.deviceId != entry->deviceId |
| || mTouchState.source != entry->source); |
| bool isHoverAction = (maskedAction == AMOTION_EVENT_ACTION_HOVER_MOVE |
| || maskedAction == AMOTION_EVENT_ACTION_HOVER_ENTER |
| || maskedAction == AMOTION_EVENT_ACTION_HOVER_EXIT); |
| bool newGesture = (maskedAction == AMOTION_EVENT_ACTION_DOWN |
| || maskedAction == AMOTION_EVENT_ACTION_SCROLL |
| || isHoverAction); |
| bool wrongDevice = false; |
| if (newGesture) { |
| bool down = maskedAction == AMOTION_EVENT_ACTION_DOWN; |
| if (switchedDevice && mTouchState.down && !down) { |
| #if DEBUG_FOCUS |
| LOGD("Dropping event because a pointer for a different device is already down."); |
| #endif |
| mTempTouchState.copyFrom(mTouchState); |
| injectionResult = INPUT_EVENT_INJECTION_FAILED; |
| switchedDevice = false; |
| wrongDevice = true; |
| goto Failed; |
| } |
| mTempTouchState.reset(); |
| mTempTouchState.down = down; |
| mTempTouchState.deviceId = entry->deviceId; |
| mTempTouchState.source = entry->source; |
| isSplit = false; |
| } else { |
| mTempTouchState.copyFrom(mTouchState); |
| } |
| |
| if (newGesture || (isSplit && maskedAction == AMOTION_EVENT_ACTION_POINTER_DOWN)) { |
| /* Case 1: New splittable pointer going down, or need target for hover or scroll. */ |
| |
| const MotionSample* sample = &entry->firstSample; |
| int32_t pointerIndex = getMotionEventActionPointerIndex(action); |
| int32_t x = int32_t(sample->pointerCoords[pointerIndex]. |
| getAxisValue(AMOTION_EVENT_AXIS_X)); |
| int32_t y = int32_t(sample->pointerCoords[pointerIndex]. |
| getAxisValue(AMOTION_EVENT_AXIS_Y)); |
| sp<InputWindowHandle> newTouchedWindowHandle; |
| sp<InputWindowHandle> topErrorWindowHandle; |
| bool isTouchModal = false; |
| |
| // Traverse windows from front to back to find touched window and outside targets. |
| size_t numWindows = mWindowHandles.size(); |
| for (size_t i = 0; i < numWindows; i++) { |
| sp<InputWindowHandle> windowHandle = mWindowHandles.itemAt(i); |
| int32_t flags = windowHandle->layoutParamsFlags; |
| |
| if (flags & InputWindowHandle::FLAG_SYSTEM_ERROR) { |
| if (topErrorWindowHandle == NULL) { |
| topErrorWindowHandle = windowHandle; |
| } |
| } |
| |
| if (windowHandle->visible) { |
| if (! (flags & InputWindowHandle::FLAG_NOT_TOUCHABLE)) { |
| isTouchModal = (flags & (InputWindowHandle::FLAG_NOT_FOCUSABLE |
| | InputWindowHandle::FLAG_NOT_TOUCH_MODAL)) == 0; |
| if (isTouchModal || windowHandle->touchableRegionContainsPoint(x, y)) { |
| if (! screenWasOff |
| || (flags & InputWindowHandle::FLAG_TOUCHABLE_WHEN_WAKING)) { |
| newTouchedWindowHandle = windowHandle; |
| } |
| break; // found touched window, exit window loop |
| } |
| } |
| |
| if (maskedAction == AMOTION_EVENT_ACTION_DOWN |
| && (flags & InputWindowHandle::FLAG_WATCH_OUTSIDE_TOUCH)) { |
| int32_t outsideTargetFlags = InputTarget::FLAG_DISPATCH_AS_OUTSIDE; |
| if (isWindowObscuredAtPointLocked(windowHandle, x, y)) { |
| outsideTargetFlags |= InputTarget::FLAG_WINDOW_IS_OBSCURED; |
| } |
| |
| mTempTouchState.addOrUpdateWindow( |
| windowHandle, outsideTargetFlags, BitSet32(0)); |
| } |
| } |
| } |
| |
| // If there is an error window but it is not taking focus (typically because |
| // it is invisible) then wait for it. Any other focused window may in |
| // fact be in ANR state. |
| if (topErrorWindowHandle != NULL && newTouchedWindowHandle != topErrorWindowHandle) { |
| #if DEBUG_FOCUS |
| LOGD("Waiting because system error window is pending."); |
| #endif |
| injectionResult = handleTargetsNotReadyLocked(currentTime, entry, |
| NULL, NULL, nextWakeupTime); |
| injectionPermission = INJECTION_PERMISSION_UNKNOWN; |
| goto Unresponsive; |
| } |
| |
| // Figure out whether splitting will be allowed for this window. |
| if (newTouchedWindowHandle != NULL && newTouchedWindowHandle->supportsSplitTouch()) { |
| // New window supports splitting. |
| isSplit = true; |
| } else if (isSplit) { |
| // New window does not support splitting but we have already split events. |
| // Assign the pointer to the first foreground window we find. |
| // (May be NULL which is why we put this code block before the next check.) |
| newTouchedWindowHandle = mTempTouchState.getFirstForegroundWindowHandle(); |
| } |
| |
| // If we did not find a touched window then fail. |
| if (newTouchedWindowHandle == NULL) { |
| if (mFocusedApplicationHandle != NULL) { |
| #if DEBUG_FOCUS |
| LOGD("Waiting because there is no touched window but there is a " |
| "focused application that may eventually add a new window: %s.", |
| getApplicationWindowLabelLocked(mFocusedApplicationHandle, NULL).string()); |
| #endif |
| injectionResult = handleTargetsNotReadyLocked(currentTime, entry, |
| mFocusedApplicationHandle, NULL, nextWakeupTime); |
| goto Unresponsive; |
| } |
| |
| LOGI("Dropping event because there is no touched window or focused application."); |
| injectionResult = INPUT_EVENT_INJECTION_FAILED; |
| goto Failed; |
| } |
| |
| // Set target flags. |
| int32_t targetFlags = InputTarget::FLAG_FOREGROUND | InputTarget::FLAG_DISPATCH_AS_IS; |
| if (isSplit) { |
| targetFlags |= InputTarget::FLAG_SPLIT; |
| } |
| if (isWindowObscuredAtPointLocked(newTouchedWindowHandle, x, y)) { |
| targetFlags |= InputTarget::FLAG_WINDOW_IS_OBSCURED; |
| } |
| |
| // Update hover state. |
| if (isHoverAction) { |
| newHoverWindowHandle = newTouchedWindowHandle; |
| |
| // Ensure all subsequent motion samples are also within the touched window. |
| // Set *outSplitBatchAfterSample to the sample before the first one that is not |
| // within the touched window. |
| if (!isTouchModal) { |
| while (sample->next) { |
| if (!newHoverWindowHandle->touchableRegionContainsPoint( |
| sample->next->pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_X), |
| sample->next->pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_Y))) { |
| *outSplitBatchAfterSample = sample; |
| break; |
| } |
| sample = sample->next; |
| } |
| } |
| } else if (maskedAction == AMOTION_EVENT_ACTION_SCROLL) { |
| newHoverWindowHandle = mLastHoverWindowHandle; |
| } |
| |
| // Update the temporary touch state. |
| BitSet32 pointerIds; |
| if (isSplit) { |
| uint32_t pointerId = entry->pointerProperties[pointerIndex].id; |
| pointerIds.markBit(pointerId); |
| } |
| mTempTouchState.addOrUpdateWindow(newTouchedWindowHandle, targetFlags, pointerIds); |
| } else { |
| /* Case 2: Pointer move, up, cancel or non-splittable pointer down. */ |
| |
| // If the pointer is not currently down, then ignore the event. |
| if (! mTempTouchState.down) { |
| #if DEBUG_FOCUS |
| LOGD("Dropping event because the pointer is not down or we previously " |
| "dropped the pointer down event."); |
| #endif |
| injectionResult = INPUT_EVENT_INJECTION_FAILED; |
| goto Failed; |
| } |
| |
| // Check whether touches should slip outside of the current foreground window. |
| if (maskedAction == AMOTION_EVENT_ACTION_MOVE |
| && entry->pointerCount == 1 |
| && mTempTouchState.isSlippery()) { |
| const MotionSample* sample = &entry->firstSample; |
| int32_t x = int32_t(sample->pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_X)); |
| int32_t y = int32_t(sample->pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_Y)); |
| |
| sp<InputWindowHandle> oldTouchedWindowHandle = |
| mTempTouchState.getFirstForegroundWindowHandle(); |
| sp<InputWindowHandle> newTouchedWindowHandle = findTouchedWindowAtLocked(x, y); |
| if (oldTouchedWindowHandle != newTouchedWindowHandle |
| && newTouchedWindowHandle != NULL) { |
| #if DEBUG_FOCUS |
| LOGD("Touch is slipping out of window %s into window %s.", |
| oldTouchedWindowHandle->name.string(), |
| newTouchedWindowHandle->name.string()); |
| #endif |
| // Make a slippery exit from the old window. |
| mTempTouchState.addOrUpdateWindow(oldTouchedWindowHandle, |
| InputTarget::FLAG_DISPATCH_AS_SLIPPERY_EXIT, BitSet32(0)); |
| |
| // Make a slippery entrance into the new window. |
| if (newTouchedWindowHandle->supportsSplitTouch()) { |
| isSplit = true; |
| } |
| |
| int32_t targetFlags = InputTarget::FLAG_FOREGROUND |
| | InputTarget::FLAG_DISPATCH_AS_SLIPPERY_ENTER; |
| if (isSplit) { |
| targetFlags |= InputTarget::FLAG_SPLIT; |
| } |
| if (isWindowObscuredAtPointLocked(newTouchedWindowHandle, x, y)) { |
| targetFlags |= InputTarget::FLAG_WINDOW_IS_OBSCURED; |
| } |
| |
| BitSet32 pointerIds; |
| if (isSplit) { |
| pointerIds.markBit(entry->pointerProperties[0].id); |
| } |
| mTempTouchState.addOrUpdateWindow(newTouchedWindowHandle, targetFlags, pointerIds); |
| |
| // Split the batch here so we send exactly one sample. |
| *outSplitBatchAfterSample = &entry->firstSample; |
| } |
| } |
| } |
| |
| if (newHoverWindowHandle != mLastHoverWindowHandle) { |
| // Split the batch here so we send exactly one sample as part of ENTER or EXIT. |
| *outSplitBatchAfterSample = &entry->firstSample; |
| |
| // Let the previous window know that the hover sequence is over. |
| if (mLastHoverWindowHandle != NULL) { |
| #if DEBUG_HOVER |
| LOGD("Sending hover exit event to window %s.", mLastHoverWindowHandle->name.string()); |
| #endif |
| mTempTouchState.addOrUpdateWindow(mLastHoverWindowHandle, |
| InputTarget::FLAG_DISPATCH_AS_HOVER_EXIT, BitSet32(0)); |
| } |
| |
| // Let the new window know that the hover sequence is starting. |
| if (newHoverWindowHandle != NULL) { |
| #if DEBUG_HOVER |
| LOGD("Sending hover enter event to window %s.", newHoverWindowHandle->name.string()); |
| #endif |
| mTempTouchState.addOrUpdateWindow(newHoverWindowHandle, |
| InputTarget::FLAG_DISPATCH_AS_HOVER_ENTER, BitSet32(0)); |
| } |
| } |
| |
| // Check permission to inject into all touched foreground windows and ensure there |
| // is at least one touched foreground window. |
| { |
| bool haveForegroundWindow = false; |
| for (size_t i = 0; i < mTempTouchState.windows.size(); i++) { |
| const TouchedWindow& touchedWindow = mTempTouchState.windows[i]; |
| if (touchedWindow.targetFlags & InputTarget::FLAG_FOREGROUND) { |
| haveForegroundWindow = true; |
| if (! checkInjectionPermission(touchedWindow.windowHandle, |
| entry->injectionState)) { |
| injectionResult = INPUT_EVENT_INJECTION_PERMISSION_DENIED; |
| injectionPermission = INJECTION_PERMISSION_DENIED; |
| goto Failed; |
| } |
| } |
| } |
| if (! haveForegroundWindow) { |
| #if DEBUG_FOCUS |
| LOGD("Dropping event because there is no touched foreground window to receive it."); |
| #endif |
| injectionResult = INPUT_EVENT_INJECTION_FAILED; |
| goto Failed; |
| } |
| |
| // Permission granted to injection into all touched foreground windows. |
| injectionPermission = INJECTION_PERMISSION_GRANTED; |
| } |
| |
| // Check whether windows listening for outside touches are owned by the same UID. If it is |
| // set the policy flag that we will not reveal coordinate information to this window. |
| if (maskedAction == AMOTION_EVENT_ACTION_DOWN) { |
| sp<InputWindowHandle> foregroundWindowHandle = |
| mTempTouchState.getFirstForegroundWindowHandle(); |
| const int32_t foregroundWindowUid = foregroundWindowHandle->ownerUid; |
| for (size_t i = 0; i < mTempTouchState.windows.size(); i++) { |
| const TouchedWindow& touchedWindow = mTempTouchState.windows[i]; |
| if (touchedWindow.targetFlags & InputTarget::FLAG_DISPATCH_AS_OUTSIDE) { |
| sp<InputWindowHandle> inputWindowHandle = touchedWindow.windowHandle; |
| if (inputWindowHandle->ownerUid != foregroundWindowUid) { |
| mTempTouchState.addOrUpdateWindow(inputWindowHandle, |
| InputTarget::FLAG_ZERO_COORDS, BitSet32(0)); |
| } |
| } |
| } |
| } |
| |
| // Ensure all touched foreground windows are ready for new input. |
| for (size_t i = 0; i < mTempTouchState.windows.size(); i++) { |
| const TouchedWindow& touchedWindow = mTempTouchState.windows[i]; |
| if (touchedWindow.targetFlags & InputTarget::FLAG_FOREGROUND) { |
| // If the touched window is paused then keep waiting. |
| if (touchedWindow.windowHandle->paused) { |
| #if DEBUG_FOCUS |
| LOGD("Waiting because touched window is paused."); |
| #endif |
| injectionResult = handleTargetsNotReadyLocked(currentTime, entry, |
| NULL, touchedWindow.windowHandle, nextWakeupTime); |
| goto Unresponsive; |
| } |
| |
| // If the touched window is still working on previous events then keep waiting. |
| if (! isWindowFinishedWithPreviousInputLocked(touchedWindow.windowHandle)) { |
| #if DEBUG_FOCUS |
| LOGD("Waiting because touched window still processing previous input."); |
| #endif |
| injectionResult = handleTargetsNotReadyLocked(currentTime, entry, |
| NULL, touchedWindow.windowHandle, nextWakeupTime); |
| goto Unresponsive; |
| } |
| } |
| } |
| |
| // If this is the first pointer going down and the touched window has a wallpaper |
| // then also add the touched wallpaper windows so they are locked in for the duration |
| // of the touch gesture. |
| // We do not collect wallpapers during HOVER_MOVE or SCROLL because the wallpaper |
| // engine only supports touch events. We would need to add a mechanism similar |
| // to View.onGenericMotionEvent to enable wallpapers to handle these events. |
| if (maskedAction == AMOTION_EVENT_ACTION_DOWN) { |
| sp<InputWindowHandle> foregroundWindowHandle = |
| mTempTouchState.getFirstForegroundWindowHandle(); |
| if (foregroundWindowHandle->hasWallpaper) { |
| for (size_t i = 0; i < mWindowHandles.size(); i++) { |
| sp<InputWindowHandle> windowHandle = mWindowHandles.itemAt(i); |
| if (windowHandle->layoutParamsType == InputWindowHandle::TYPE_WALLPAPER) { |
| mTempTouchState.addOrUpdateWindow(windowHandle, |
| InputTarget::FLAG_WINDOW_IS_OBSCURED |
| | InputTarget::FLAG_DISPATCH_AS_IS, |
| BitSet32(0)); |
| } |
| } |
| } |
| } |
| |
| // Success! Output targets. |
| injectionResult = INPUT_EVENT_INJECTION_SUCCEEDED; |
| |
| for (size_t i = 0; i < mTempTouchState.windows.size(); i++) { |
| const TouchedWindow& touchedWindow = mTempTouchState.windows.itemAt(i); |
| addWindowTargetLocked(touchedWindow.windowHandle, touchedWindow.targetFlags, |
| touchedWindow.pointerIds); |
| } |
| |
| // Drop the outside or hover touch windows since we will not care about them |
| // in the next iteration. |
| mTempTouchState.filterNonAsIsTouchWindows(); |
| |
| Failed: |
| // Check injection permission once and for all. |
| if (injectionPermission == INJECTION_PERMISSION_UNKNOWN) { |
| if (checkInjectionPermission(NULL, entry->injectionState)) { |
| injectionPermission = INJECTION_PERMISSION_GRANTED; |
| } else { |
| injectionPermission = INJECTION_PERMISSION_DENIED; |
| } |
| } |
| |
| // Update final pieces of touch state if the injector had permission. |
| if (injectionPermission == INJECTION_PERMISSION_GRANTED) { |
| if (!wrongDevice) { |
| if (switchedDevice) { |
| #if DEBUG_FOCUS |
| LOGD("Conflicting pointer actions: Switched to a different device."); |
| #endif |
| *outConflictingPointerActions = true; |
| } |
| |
| if (isHoverAction) { |
| // Started hovering, therefore no longer down. |
| if (mTouchState.down) { |
| #if DEBUG_FOCUS |
| LOGD("Conflicting pointer actions: Hover received while pointer was down."); |
| #endif |
| *outConflictingPointerActions = true; |
| } |
| mTouchState.reset(); |
| if (maskedAction == AMOTION_EVENT_ACTION_HOVER_ENTER |
| || maskedAction == AMOTION_EVENT_ACTION_HOVER_MOVE) { |
| mTouchState.deviceId = entry->deviceId; |
| mTouchState.source = entry->source; |
| } |
| } else if (maskedAction == AMOTION_EVENT_ACTION_UP |
| || maskedAction == AMOTION_EVENT_ACTION_CANCEL) { |
| // All pointers up or canceled. |
| mTouchState.reset(); |
| } else if (maskedAction == AMOTION_EVENT_ACTION_DOWN) { |
| // First pointer went down. |
| if (mTouchState.down) { |
| #if DEBUG_FOCUS |
| LOGD("Conflicting pointer actions: Down received while already down."); |
| #endif |
| *outConflictingPointerActions = true; |
| } |
| mTouchState.copyFrom(mTempTouchState); |
| } else if (maskedAction == AMOTION_EVENT_ACTION_POINTER_UP) { |
| // One pointer went up. |
| if (isSplit) { |
| int32_t pointerIndex = getMotionEventActionPointerIndex(action); |
| uint32_t pointerId = entry->pointerProperties[pointerIndex].id; |
| |
| for (size_t i = 0; i < mTempTouchState.windows.size(); ) { |
| TouchedWindow& touchedWindow = mTempTouchState.windows.editItemAt(i); |
| if (touchedWindow.targetFlags & InputTarget::FLAG_SPLIT) { |
| touchedWindow.pointerIds.clearBit(pointerId); |
| if (touchedWindow.pointerIds.isEmpty()) { |
| mTempTouchState.windows.removeAt(i); |
| continue; |
| } |
| } |
| i += 1; |
| } |
| } |
| mTouchState.copyFrom(mTempTouchState); |
| } else if (maskedAction == AMOTION_EVENT_ACTION_SCROLL) { |
| // Discard temporary touch state since it was only valid for this action. |
| } else { |
| // Save changes to touch state as-is for all other actions. |
| mTouchState.copyFrom(mTempTouchState); |
| } |
| |
| // Update hover state. |
| mLastHoverWindowHandle = newHoverWindowHandle; |
| } |
| } else { |
| #if DEBUG_FOCUS |
| LOGD("Not updating touch focus because injection was denied."); |
| #endif |
| } |
| |
| Unresponsive: |
| // Reset temporary touch state to ensure we release unnecessary references to input channels. |
| mTempTouchState.reset(); |
| |
| nsecs_t timeSpentWaitingForApplication = getTimeSpentWaitingForApplicationLocked(currentTime); |
| updateDispatchStatisticsLocked(currentTime, entry, |
| injectionResult, timeSpentWaitingForApplication); |
| #if DEBUG_FOCUS |
| LOGD("findTouchedWindow finished: injectionResult=%d, injectionPermission=%d, " |
| "timeSpentWaitingForApplication=%0.1fms", |
| injectionResult, injectionPermission, timeSpentWaitingForApplication / 1000000.0); |
| #endif |
| return injectionResult; |
| } |
| |
| void InputDispatcher::addWindowTargetLocked(const sp<InputWindowHandle>& windowHandle, |
| int32_t targetFlags, BitSet32 pointerIds) { |
| mCurrentInputTargets.push(); |
| |
| InputTarget& target = mCurrentInputTargets.editTop(); |
| target.inputChannel = windowHandle->inputChannel; |
| target.flags = targetFlags; |
| target.xOffset = - windowHandle->frameLeft; |
| target.yOffset = - windowHandle->frameTop; |
| target.scaleFactor = windowHandle->scaleFactor; |
| target.pointerIds = pointerIds; |
| } |
| |
| void InputDispatcher::addMonitoringTargetsLocked() { |
| for (size_t i = 0; i < mMonitoringChannels.size(); i++) { |
| mCurrentInputTargets.push(); |
| |
| InputTarget& target = mCurrentInputTargets.editTop(); |
| target.inputChannel = mMonitoringChannels[i]; |
| target.flags = InputTarget::FLAG_DISPATCH_AS_IS; |
| target.xOffset = 0; |
| target.yOffset = 0; |
| target.pointerIds.clear(); |
| target.scaleFactor = 1.0f; |
| } |
| } |
| |
| bool InputDispatcher::checkInjectionPermission(const sp<InputWindowHandle>& windowHandle, |
| const InjectionState* injectionState) { |
| if (injectionState |
| && (windowHandle == NULL || windowHandle->ownerUid != injectionState->injectorUid) |
| && !hasInjectionPermission(injectionState->injectorPid, injectionState->injectorUid)) { |
| if (windowHandle != NULL) { |
| LOGW("Permission denied: injecting event from pid %d uid %d to window %s " |
| "owned by uid %d", |
| injectionState->injectorPid, injectionState->injectorUid, |
| windowHandle->name.string(), |
| windowHandle->ownerUid); |
| } else { |
| LOGW("Permission denied: injecting event from pid %d uid %d", |
| injectionState->injectorPid, injectionState->injectorUid); |
| } |
| return false; |
| } |
| return true; |
| } |
| |
| bool InputDispatcher::isWindowObscuredAtPointLocked( |
| const sp<InputWindowHandle>& windowHandle, int32_t x, int32_t y) const { |
| size_t numWindows = mWindowHandles.size(); |
| for (size_t i = 0; i < numWindows; i++) { |
| sp<InputWindowHandle> otherHandle = mWindowHandles.itemAt(i); |
| if (otherHandle == windowHandle) { |
| break; |
| } |
| if (otherHandle->visible && ! otherHandle->isTrustedOverlay() |
| && otherHandle->frameContainsPoint(x, y)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool InputDispatcher::isWindowFinishedWithPreviousInputLocked( |
| const sp<InputWindowHandle>& windowHandle) { |
| ssize_t connectionIndex = getConnectionIndexLocked(windowHandle->inputChannel); |
| if (connectionIndex >= 0) { |
| sp<Connection> connection = mConnectionsByReceiveFd.valueAt(connectionIndex); |
| return connection->outboundQueue.isEmpty(); |
| } else { |
| return true; |
| } |
| } |
| |
| String8 InputDispatcher::getApplicationWindowLabelLocked( |
| const sp<InputApplicationHandle>& applicationHandle, |
| const sp<InputWindowHandle>& windowHandle) { |
| if (applicationHandle != NULL) { |
| if (windowHandle != NULL) { |
| String8 label(applicationHandle->name); |
| label.append(" - "); |
| label.append(windowHandle->name); |
| return label; |
| } else { |
| return applicationHandle->name; |
| } |
| } else if (windowHandle != NULL) { |
| return windowHandle->name; |
| } else { |
| return String8("<unknown application or window>"); |
| } |
| } |
| |
| void InputDispatcher::pokeUserActivityLocked(const EventEntry* eventEntry) { |
| int32_t eventType = POWER_MANAGER_OTHER_EVENT; |
| switch (eventEntry->type) { |
| case EventEntry::TYPE_MOTION: { |
| const MotionEntry* motionEntry = static_cast<const MotionEntry*>(eventEntry); |
| if (motionEntry->action == AMOTION_EVENT_ACTION_CANCEL) { |
| return; |
| } |
| |
| if (MotionEvent::isTouchEvent(motionEntry->source, motionEntry->action)) { |
| eventType = POWER_MANAGER_TOUCH_EVENT; |
| } |
| break; |
| } |
| case EventEntry::TYPE_KEY: { |
| const KeyEntry* keyEntry = static_cast<const KeyEntry*>(eventEntry); |
| if (keyEntry->flags & AKEY_EVENT_FLAG_CANCELED) { |
| return; |
| } |
| eventType = POWER_MANAGER_BUTTON_EVENT; |
| break; |
| } |
| } |
| |
| CommandEntry* commandEntry = postCommandLocked( |
| & InputDispatcher::doPokeUserActivityLockedInterruptible); |
| commandEntry->eventTime = eventEntry->eventTime; |
| commandEntry->userActivityEventType = eventType; |
| } |
| |
| void InputDispatcher::prepareDispatchCycleLocked(nsecs_t currentTime, |
| const sp<Connection>& connection, EventEntry* eventEntry, const InputTarget* inputTarget, |
| bool resumeWithAppendedMotionSample) { |
| #if DEBUG_DISPATCH_CYCLE |
| LOGD("channel '%s' ~ prepareDispatchCycle - flags=%d, " |
| "xOffset=%f, yOffset=%f, scaleFactor=%f" |
| "pointerIds=0x%x, " |
| "resumeWithAppendedMotionSample=%s", |
| connection->getInputChannelName(), inputTarget->flags, |
| inputTarget->xOffset, inputTarget->yOffset, |
| inputTarget->scaleFactor, inputTarget->pointerIds.value, |
| toString(resumeWithAppendedMotionSample)); |
| #endif |
| |
| // Make sure we are never called for streaming when splitting across multiple windows. |
| bool isSplit = inputTarget->flags & InputTarget::FLAG_SPLIT; |
| LOG_ASSERT(! (resumeWithAppendedMotionSample && isSplit)); |
| |
| // Skip this event if the connection status is not normal. |
| // We don't want to enqueue additional outbound events if the connection is broken. |
| if (connection->status != Connection::STATUS_NORMAL) { |
| #if DEBUG_DISPATCH_CYCLE |
| LOGD("channel '%s' ~ Dropping event because the channel status is %s", |
| connection->getInputChannelName(), connection->getStatusLabel()); |
| #endif |
| return; |
| } |
| |
| // Split a motion event if needed. |
| if (isSplit) { |
| LOG_ASSERT(eventEntry->type == EventEntry::TYPE_MOTION); |
| |
| MotionEntry* originalMotionEntry = static_cast<MotionEntry*>(eventEntry); |
| if (inputTarget->pointerIds.count() != originalMotionEntry->pointerCount) { |
| MotionEntry* splitMotionEntry = splitMotionEvent( |
| originalMotionEntry, inputTarget->pointerIds); |
| if (!splitMotionEntry) { |
| return; // split event was dropped |
| } |
| #if DEBUG_FOCUS |
| LOGD("channel '%s' ~ Split motion event.", |
| connection->getInputChannelName()); |
| logOutboundMotionDetailsLocked(" ", splitMotionEntry); |
| #endif |
| eventEntry = splitMotionEntry; |
| } |
| } |
| |
| // Resume the dispatch cycle with a freshly appended motion sample. |
| // First we check that the last dispatch entry in the outbound queue is for the same |
| // motion event to which we appended the motion sample. If we find such a dispatch |
| // entry, and if it is currently in progress then we try to stream the new sample. |
| bool wasEmpty = connection->outboundQueue.isEmpty(); |
| |
| if (! wasEmpty && resumeWithAppendedMotionSample) { |
| DispatchEntry* motionEventDispatchEntry = |
| connection->findQueuedDispatchEntryForEvent(eventEntry); |
| if (motionEventDispatchEntry) { |
| // If the dispatch entry is not in progress, then we must be busy dispatching an |
| // earlier event. Not a problem, the motion event is on the outbound queue and will |
| // be dispatched later. |
| if (! motionEventDispatchEntry->inProgress) { |
| #if DEBUG_BATCHING |
| LOGD("channel '%s' ~ Not streaming because the motion event has " |
| "not yet been dispatched. " |
| "(Waiting for earlier events to be consumed.)", |
| connection->getInputChannelName()); |
| #endif |
| return; |
| } |
| |
| // If the dispatch entry is in progress but it already has a tail of pending |
| // motion samples, then it must mean that the shared memory buffer filled up. |
| // Not a problem, when this dispatch cycle is finished, we will eventually start |
| // a new dispatch cycle to process the tail and that tail includes the newly |
| // appended motion sample. |
| if (motionEventDispatchEntry->tailMotionSample) { |
| #if DEBUG_BATCHING |
| LOGD("channel '%s' ~ Not streaming because no new samples can " |
| "be appended to the motion event in this dispatch cycle. " |
| "(Waiting for next dispatch cycle to start.)", |
| connection->getInputChannelName()); |
| #endif |
| return; |
| } |
| |
| // If the motion event was modified in flight, then we cannot stream the sample. |
| if ((motionEventDispatchEntry->targetFlags & InputTarget::FLAG_DISPATCH_MASK) |
| != InputTarget::FLAG_DISPATCH_AS_IS) { |
| #if DEBUG_BATCHING |
| LOGD("channel '%s' ~ Not streaming because the motion event was not " |
| "being dispatched as-is. " |
| "(Waiting for next dispatch cycle to start.)", |
| connection->getInputChannelName()); |
| #endif |
| return; |
| } |
| |
| // The dispatch entry is in progress and is still potentially open for streaming. |
| // Try to stream the new motion sample. This might fail if the consumer has already |
| // consumed the motion event (or if the channel is broken). |
| MotionEntry* motionEntry = static_cast<MotionEntry*>(eventEntry); |
| MotionSample* appendedMotionSample = motionEntry->lastSample; |
| status_t status; |
| if (motionEventDispatchEntry->scaleFactor == 1.0f) { |
| status = connection->inputPublisher.appendMotionSample( |
| appendedMotionSample->eventTime, appendedMotionSample->pointerCoords); |
| } else { |
| PointerCoords scaledCoords[MAX_POINTERS]; |
| for (size_t i = 0; i < motionEntry->pointerCount; i++) { |
| scaledCoords[i] = appendedMotionSample->pointerCoords[i]; |
| scaledCoords[i].scale(motionEventDispatchEntry->scaleFactor); |
| } |
| status = connection->inputPublisher.appendMotionSample( |
| appendedMotionSample->eventTime, scaledCoords); |
| } |
| if (status == OK) { |
| #if DEBUG_BATCHING |
| LOGD("channel '%s' ~ Successfully streamed new motion sample.", |
| connection->getInputChannelName()); |
| #endif |
| return; |
| } |
| |
| #if DEBUG_BATCHING |
| if (status == NO_MEMORY) { |
| LOGD("channel '%s' ~ Could not append motion sample to currently " |
| "dispatched move event because the shared memory buffer is full. " |
| "(Waiting for next dispatch cycle to start.)", |
| connection->getInputChannelName()); |
| } else if (status == status_t(FAILED_TRANSACTION)) { |
| LOGD("channel '%s' ~ Could not append motion sample to currently " |
| "dispatched move event because the event has already been consumed. " |
| "(Waiting for next dispatch cycle to start.)", |
| connection->getInputChannelName()); |
| } else { |
| LOGD("channel '%s' ~ Could not append motion sample to currently " |
| "dispatched move event due to an error, status=%d. " |
| "(Waiting for next dispatch cycle to start.)", |
| connection->getInputChannelName(), status); |
| } |
| #endif |
| // Failed to stream. Start a new tail of pending motion samples to dispatch |
| // in the next cycle. |
| motionEventDispatchEntry->tailMotionSample = appendedMotionSample; |
| return; |
| } |
| } |
| |
| // Enqueue dispatch entries for the requested modes. |
| enqueueDispatchEntryLocked(connection, eventEntry, inputTarget, |
| resumeWithAppendedMotionSample, InputTarget::FLAG_DISPATCH_AS_HOVER_EXIT); |
| enqueueDispatchEntryLocked(connection, eventEntry, inputTarget, |
| resumeWithAppendedMotionSample, InputTarget::FLAG_DISPATCH_AS_OUTSIDE); |
| enqueueDispatchEntryLocked(connection, eventEntry, inputTarget, |
| resumeWithAppendedMotionSample, InputTarget::FLAG_DISPATCH_AS_HOVER_ENTER); |
| enqueueDispatchEntryLocked(connection, eventEntry, inputTarget, |
| resumeWithAppendedMotionSample, InputTarget::FLAG_DISPATCH_AS_IS); |
| enqueueDispatchEntryLocked(connection, eventEntry, inputTarget, |
| resumeWithAppendedMotionSample, InputTarget::FLAG_DISPATCH_AS_SLIPPERY_EXIT); |
| enqueueDispatchEntryLocked(connection, eventEntry, inputTarget, |
| resumeWithAppendedMotionSample, InputTarget::FLAG_DISPATCH_AS_SLIPPERY_ENTER); |
| |
| // If the outbound queue was previously empty, start the dispatch cycle going. |
| if (wasEmpty && !connection->outboundQueue.isEmpty()) { |
| activateConnectionLocked(connection.get()); |
| startDispatchCycleLocked(currentTime, connection); |
| } |
| } |
| |
| void InputDispatcher::enqueueDispatchEntryLocked( |
| const sp<Connection>& connection, EventEntry* eventEntry, const InputTarget* inputTarget, |
| bool resumeWithAppendedMotionSample, int32_t dispatchMode) { |
| int32_t inputTargetFlags = inputTarget->flags; |
| if (!(inputTargetFlags & dispatchMode)) { |
| return; |
| } |
| inputTargetFlags = (inputTargetFlags & ~InputTarget::FLAG_DISPATCH_MASK) | dispatchMode; |
| |
| // This is a new event. |
| // Enqueue a new dispatch entry onto the outbound queue for this connection. |
| DispatchEntry* dispatchEntry = new DispatchEntry(eventEntry, // increments ref |
| inputTargetFlags, inputTarget->xOffset, inputTarget->yOffset, |
| inputTarget->scaleFactor); |
| if (dispatchEntry->hasForegroundTarget()) { |
| incrementPendingForegroundDispatchesLocked(eventEntry); |
| } |
| |
| // Handle the case where we could not stream a new motion sample because the consumer has |
| // already consumed the motion event (otherwise the corresponding dispatch entry would |
| // still be in the outbound queue for this connection). We set the head motion sample |
| // to the list starting with the newly appended motion sample. |
| if (resumeWithAppendedMotionSample) { |
| #if DEBUG_BATCHING |
| LOGD("channel '%s' ~ Preparing a new dispatch cycle for additional motion samples " |
| "that cannot be streamed because the motion event has already been consumed.", |
| connection->getInputChannelName()); |
| #endif |
| MotionSample* appendedMotionSample = static_cast<MotionEntry*>(eventEntry)->lastSample; |
| dispatchEntry->headMotionSample = appendedMotionSample; |
| } |
| |
| // Apply target flags and update the connection's input state. |
| switch (eventEntry->type) { |
| case EventEntry::TYPE_KEY: { |
| KeyEntry* keyEntry = static_cast<KeyEntry*>(eventEntry); |
| dispatchEntry->resolvedAction = keyEntry->action; |
| dispatchEntry->resolvedFlags = keyEntry->flags; |
| |
| if (!connection->inputState.trackKey(keyEntry, |
| dispatchEntry->resolvedAction, dispatchEntry->resolvedFlags)) { |
| #if DEBUG_DISPATCH_CYCLE |
| LOGD("channel '%s' ~ enqueueDispatchEntryLocked: skipping inconsistent key event", |
| connection->getInputChannelName()); |
| #endif |
| return; // skip the inconsistent event |
| } |
| break; |
| } |
| |
| case EventEntry::TYPE_MOTION: { |
| MotionEntry* motionEntry = static_cast<MotionEntry*>(eventEntry); |
| if (dispatchMode & InputTarget::FLAG_DISPATCH_AS_OUTSIDE) { |
| dispatchEntry->resolvedAction = AMOTION_EVENT_ACTION_OUTSIDE; |
| } else if (dispatchMode & InputTarget::FLAG_DISPATCH_AS_HOVER_EXIT) { |
| dispatchEntry->resolvedAction = AMOTION_EVENT_ACTION_HOVER_EXIT; |
| } else if (dispatchMode & InputTarget::FLAG_DISPATCH_AS_HOVER_ENTER) { |
| dispatchEntry->resolvedAction = AMOTION_EVENT_ACTION_HOVER_ENTER; |
| } else if (dispatchMode & InputTarget::FLAG_DISPATCH_AS_SLIPPERY_EXIT) { |
| dispatchEntry->resolvedAction = AMOTION_EVENT_ACTION_CANCEL; |
| } else if (dispatchMode & InputTarget::FLAG_DISPATCH_AS_SLIPPERY_ENTER) { |
| dispatchEntry->resolvedAction = AMOTION_EVENT_ACTION_DOWN; |
| } else { |
| dispatchEntry->resolvedAction = motionEntry->action; |
| } |
| if (dispatchEntry->resolvedAction == AMOTION_EVENT_ACTION_HOVER_MOVE |
| && !connection->inputState.isHovering( |
| motionEntry->deviceId, motionEntry->source)) { |
| #if DEBUG_DISPATCH_CYCLE |
| LOGD("channel '%s' ~ enqueueDispatchEntryLocked: filling in missing hover enter event", |
| connection->getInputChannelName()); |
| #endif |
| dispatchEntry->resolvedAction = AMOTION_EVENT_ACTION_HOVER_ENTER; |
| } |
| |
| dispatchEntry->resolvedFlags = motionEntry->flags; |
| if (dispatchEntry->targetFlags & InputTarget::FLAG_WINDOW_IS_OBSCURED) { |
| dispatchEntry->resolvedFlags |= AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED; |
| } |
| |
| if (!connection->inputState.trackMotion(motionEntry, |
| dispatchEntry->resolvedAction, dispatchEntry->resolvedFlags)) { |
| #if DEBUG_DISPATCH_CYCLE |
| LOGD("channel '%s' ~ enqueueDispatchEntryLocked: skipping inconsistent motion event", |
| connection->getInputChannelName()); |
| #endif |
| return; // skip the inconsistent event |
| } |
| break; |
| } |
| } |
| |
| // Enqueue the dispatch entry. |
| connection->outboundQueue.enqueueAtTail(dispatchEntry); |
| } |
| |
| void InputDispatcher::startDispatchCycleLocked(nsecs_t currentTime, |
| const sp<Connection>& connection) { |
| #if DEBUG_DISPATCH_CYCLE |
| LOGD("channel '%s' ~ startDispatchCycle", |
| connection->getInputChannelName()); |
| #endif |
| |
| LOG_ASSERT(connection->status == Connection::STATUS_NORMAL); |
| LOG_ASSERT(! connection->outboundQueue.isEmpty()); |
| |
| DispatchEntry* dispatchEntry = connection->outboundQueue.head; |
| LOG_ASSERT(! dispatchEntry->inProgress); |
| |
| // Mark the dispatch entry as in progress. |
| dispatchEntry->inProgress = true; |
| |
| // Publish the event. |
| status_t status; |
| EventEntry* eventEntry = dispatchEntry->eventEntry; |
| switch (eventEntry->type) { |
| case EventEntry::TYPE_KEY: { |
| KeyEntry* keyEntry = static_cast<KeyEntry*>(eventEntry); |
| |
| // Publish the key event. |
| status = connection->inputPublisher.publishKeyEvent( |
| keyEntry->deviceId, keyEntry->source, |
| dispatchEntry->resolvedAction, dispatchEntry->resolvedFlags, |
| keyEntry->keyCode, keyEntry->scanCode, |
| keyEntry->metaState, keyEntry->repeatCount, keyEntry->downTime, |
| keyEntry->eventTime); |
| |
| if (status) { |
| LOGE("channel '%s' ~ Could not publish key event, " |
| "status=%d", connection->getInputChannelName(), status); |
| abortBrokenDispatchCycleLocked(currentTime, connection); |
| return; |
| } |
| break; |
| } |
| |
| case EventEntry::TYPE_MOTION: { |
| MotionEntry* motionEntry = static_cast<MotionEntry*>(eventEntry); |
| |
| // If headMotionSample is non-NULL, then it points to the first new sample that we |
| // were unable to dispatch during the previous cycle so we resume dispatching from |
| // that point in the list of motion samples. |
| // Otherwise, we just start from the first sample of the motion event. |
| MotionSample* firstMotionSample = dispatchEntry->headMotionSample; |
| if (! firstMotionSample) { |
| firstMotionSample = & motionEntry->firstSample; |
| } |
| |
| PointerCoords scaledCoords[MAX_POINTERS]; |
| const PointerCoords* usingCoords = firstMotionSample->pointerCoords; |
| |
| // Set the X and Y offset depending on the input source. |
| float xOffset, yOffset, scaleFactor; |
| if (motionEntry->source & AINPUT_SOURCE_CLASS_POINTER |
| && !(dispatchEntry->targetFlags & InputTarget::FLAG_ZERO_COORDS)) { |
| scaleFactor = dispatchEntry->scaleFactor; |
| xOffset = dispatchEntry->xOffset * scaleFactor; |
| yOffset = dispatchEntry->yOffset * scaleFactor; |
| if (scaleFactor != 1.0f) { |
| for (size_t i = 0; i < motionEntry->pointerCount; i++) { |
| scaledCoords[i] = firstMotionSample->pointerCoords[i]; |
| scaledCoords[i].scale(scaleFactor); |
| } |
| usingCoords = scaledCoords; |
| } |
| } else { |
| xOffset = 0.0f; |
| yOffset = 0.0f; |
| scaleFactor = 1.0f; |
| |
| // We don't want the dispatch target to know. |
| if (dispatchEntry->targetFlags & InputTarget::FLAG_ZERO_COORDS) { |
| for (size_t i = 0; i < motionEntry->pointerCount; i++) { |
| scaledCoords[i].clear(); |
| } |
| usingCoords = scaledCoords; |
| } |
| } |
| |
| // Publish the motion event and the first motion sample. |
| status = connection->inputPublisher.publishMotionEvent( |
| motionEntry->deviceId, motionEntry->source, |
| dispatchEntry->resolvedAction, dispatchEntry->resolvedFlags, |
| motionEntry->edgeFlags, motionEntry->metaState, motionEntry->buttonState, |
| xOffset, yOffset, |
| motionEntry->xPrecision, motionEntry->yPrecision, |
| motionEntry->downTime, firstMotionSample->eventTime, |
| motionEntry->pointerCount, motionEntry->pointerProperties, |
| usingCoords); |
| |
| if (status) { |
| LOGE("channel '%s' ~ Could not publish motion event, " |
| "status=%d", connection->getInputChannelName(), status); |
| abortBrokenDispatchCycleLocked(currentTime, connection); |
| return; |
| } |
| |
| if (dispatchEntry->resolvedAction == AMOTION_EVENT_ACTION_MOVE |
| || dispatchEntry->resolvedAction == AMOTION_EVENT_ACTION_HOVER_MOVE) { |
| // Append additional motion samples. |
| MotionSample* nextMotionSample = firstMotionSample->next; |
| for (; nextMotionSample != NULL; nextMotionSample = nextMotionSample->next) { |
| if (usingCoords == scaledCoords) { |
| if (!(dispatchEntry->targetFlags & InputTarget::FLAG_ZERO_COORDS)) { |
| for (size_t i = 0; i < motionEntry->pointerCount; i++) { |
| scaledCoords[i] = nextMotionSample->pointerCoords[i]; |
| scaledCoords[i].scale(scaleFactor); |
| } |
| } |
| } else { |
| usingCoords = nextMotionSample->pointerCoords; |
| } |
| status = connection->inputPublisher.appendMotionSample( |
| nextMotionSample->eventTime, usingCoords); |
| if (status == NO_MEMORY) { |
| #if DEBUG_DISPATCH_CYCLE |
| LOGD("channel '%s' ~ Shared memory buffer full. Some motion samples will " |
| "be sent in the next dispatch cycle.", |
| connection->getInputChannelName()); |
| #endif |
| break; |
| } |
| if (status != OK) { |
| LOGE("channel '%s' ~ Could not append motion sample " |
| "for a reason other than out of memory, status=%d", |
| connection->getInputChannelName(), status); |
| abortBrokenDispatchCycleLocked(currentTime, connection); |
| return; |
| } |
| } |
| |
| // Remember the next motion sample that we could not dispatch, in case we ran out |
| // of space in the shared memory buffer. |
| dispatchEntry->tailMotionSample = nextMotionSample; |
| } |
| break; |
| } |
| |
| default: { |
| LOG_ASSERT(false); |
| } |
| } |
| |
| // Send the dispatch signal. |
| status = connection->inputPublisher.sendDispatchSignal(); |
| if (status) { |
| LOGE("channel '%s' ~ Could not send dispatch signal, status=%d", |
| connection->getInputChannelName(), status); |
| abortBrokenDispatchCycleLocked(currentTime, connection); |
| return; |
| } |
| |
| // Record information about the newly started dispatch cycle. |
| connection->lastEventTime = eventEntry->eventTime; |
| connection->lastDispatchTime = currentTime; |
| |
| // Notify other system components. |
| onDispatchCycleStartedLocked(currentTime, connection); |
| } |
| |
| void InputDispatcher::finishDispatchCycleLocked(nsecs_t currentTime, |
| const sp<Connection>& connection, bool handled) { |
| #if DEBUG_DISPATCH_CYCLE |
| LOGD("channel '%s' ~ finishDispatchCycle - %01.1fms since event, " |
| "%01.1fms since dispatch, handled=%s", |
| connection->getInputChannelName(), |
| connection->getEventLatencyMillis(currentTime), |
| connection->getDispatchLatencyMillis(currentTime), |
| toString(handled)); |
| #endif |
| |
| if (connection->status == Connection::STATUS_BROKEN |
| || connection->status == Connection::STATUS_ZOMBIE) { |
| return; |
| } |
| |
| // Reset the publisher since the event has been consumed. |
| // We do this now so that the publisher can release some of its internal resources |
| // while waiting for the next dispatch cycle to begin. |
| status_t status = connection->inputPublisher.reset(); |
| if (status) { |
| LOGE("channel '%s' ~ Could not reset publisher, status=%d", |
| connection->getInputChannelName(), status); |
| abortBrokenDispatchCycleLocked(currentTime, connection); |
| return; |
| } |
| |
| // Notify other system components and prepare to start the next dispatch cycle. |
| onDispatchCycleFinishedLocked(currentTime, connection, handled); |
| } |
| |
| void InputDispatcher::startNextDispatchCycleLocked(nsecs_t currentTime, |
| const sp<Connection>& connection) { |
| // Start the next dispatch cycle for this connection. |
| while (! connection->outboundQueue.isEmpty()) { |
| DispatchEntry* dispatchEntry = connection->outboundQueue.head; |
| if (dispatchEntry->inProgress) { |
| // Finish or resume current event in progress. |
| if (dispatchEntry->tailMotionSample) { |
| // We have a tail of undispatched motion samples. |
| // Reuse the same DispatchEntry and start a new cycle. |
| dispatchEntry->inProgress = false; |
| dispatchEntry->headMotionSample = dispatchEntry->tailMotionSample; |
| dispatchEntry->tailMotionSample = NULL; |
| startDispatchCycleLocked(currentTime, connection); |
| return; |
| } |
| // Finished. |
| connection->outboundQueue.dequeueAtHead(); |
| if (dispatchEntry->hasForegroundTarget()) { |
| decrementPendingForegroundDispatchesLocked(dispatchEntry->eventEntry); |
| } |
| delete dispatchEntry; |
| } else { |
| // If the head is not in progress, then we must have already dequeued the in |
| // progress event, which means we actually aborted it. |
| // So just start the next event for this connection. |
| startDispatchCycleLocked(currentTime, connection); |
| return; |
| } |
| } |
| |
| // Outbound queue is empty, deactivate the connection. |
| deactivateConnectionLocked(connection.get()); |
| } |
| |
| void InputDispatcher::abortBrokenDispatchCycleLocked(nsecs_t currentTime, |
| const sp<Connection>& connection) { |
| #if DEBUG_DISPATCH_CYCLE |
| LOGD("channel '%s' ~ abortBrokenDispatchCycle", |
| connection->getInputChannelName()); |
| #endif |
| |
| // Clear the outbound queue. |
| drainOutboundQueueLocked(connection.get()); |
| |
| // The connection appears to be unrecoverably broken. |
| // Ignore already broken or zombie connections. |
| if (connection->status == Connection::STATUS_NORMAL) { |
| connection->status = Connection::STATUS_BROKEN; |
| |
| // Notify other system components. |
| onDispatchCycleBrokenLocked(currentTime, connection); |
| } |
| } |
| |
| void InputDispatcher::drainOutboundQueueLocked(Connection* connection) { |
| while (! connection->outboundQueue.isEmpty()) { |
| DispatchEntry* dispatchEntry = connection->outboundQueue.dequeueAtHead(); |
| if (dispatchEntry->hasForegroundTarget()) { |
| decrementPendingForegroundDispatchesLocked(dispatchEntry->eventEntry); |
| } |
| delete dispatchEntry; |
| } |
| |
| deactivateConnectionLocked(connection); |
| } |
| |
| int InputDispatcher::handleReceiveCallback(int receiveFd, int events, void* data) { |
| InputDispatcher* d = static_cast<InputDispatcher*>(data); |
| |
| { // acquire lock |
| AutoMutex _l(d->mLock); |
| |
| ssize_t connectionIndex = d->mConnectionsByReceiveFd.indexOfKey(receiveFd); |
| if (connectionIndex < 0) { |
| LOGE("Received spurious receive callback for unknown input channel. " |
| "fd=%d, events=0x%x", receiveFd, events); |
| return 0; // remove the callback |
| } |
| |
| nsecs_t currentTime = now(); |
| |
| sp<Connection> connection = d->mConnectionsByReceiveFd.valueAt(connectionIndex); |
| if (events & (ALOOPER_EVENT_ERROR | ALOOPER_EVENT_HANGUP)) { |
| LOGE("channel '%s' ~ Consumer closed input channel or an error occurred. " |
| "events=0x%x", connection->getInputChannelName(), events); |
| d->abortBrokenDispatchCycleLocked(currentTime, connection); |
| d->runCommandsLockedInterruptible(); |
| return 0; // remove the callback |
| } |
| |
| if (! (events & ALOOPER_EVENT_INPUT)) { |
| LOGW("channel '%s' ~ Received spurious callback for unhandled poll event. " |
| "events=0x%x", connection->getInputChannelName(), events); |
| return 1; |
| } |
| |
| bool handled = false; |
| status_t status = connection->inputPublisher.receiveFinishedSignal(&handled); |
| if (status) { |
| LOGE("channel '%s' ~ Failed to receive finished signal. status=%d", |
| connection->getInputChannelName(), status); |
| d->abortBrokenDispatchCycleLocked(currentTime, connection); |
| d->runCommandsLockedInterruptible(); |
| return 0; // remove the callback |
| } |
| |
| d->finishDispatchCycleLocked(currentTime, connection, handled); |
| d->runCommandsLockedInterruptible(); |
| return 1; |
| } // release lock |
| } |
| |
| void InputDispatcher::synthesizeCancelationEventsForAllConnectionsLocked( |
| const CancelationOptions& options) { |
| for (size_t i = 0; i < mConnectionsByReceiveFd.size(); i++) { |
| synthesizeCancelationEventsForConnectionLocked( |
| mConnectionsByReceiveFd.valueAt(i), options); |
| } |
| } |
| |
| void InputDispatcher::synthesizeCancelationEventsForInputChannelLocked( |
| const sp<InputChannel>& channel, const CancelationOptions& options) { |
| ssize_t index = getConnectionIndexLocked(channel); |
| if (index >= 0) { |
| synthesizeCancelationEventsForConnectionLocked( |
| mConnectionsByReceiveFd.valueAt(index), options); |
| } |
| } |
| |
| void InputDispatcher::synthesizeCancelationEventsForConnectionLocked( |
| const sp<Connection>& connection, const CancelationOptions& options) { |
| nsecs_t currentTime = now(); |
| |
| mTempCancelationEvents.clear(); |
| connection->inputState.synthesizeCancelationEvents(currentTime, |
| mTempCancelationEvents, options); |
| |
| if (! mTempCancelationEvents.isEmpty() |
| && connection->status != Connection::STATUS_BROKEN) { |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| LOGD("channel '%s' ~ Synthesized %d cancelation events to bring channel back in sync " |
| "with reality: %s, mode=%d.", |
| connection->getInputChannelName(), mTempCancelationEvents.size(), |
| options.reason, options.mode); |
| #endif |
| for (size_t i = 0; i < mTempCancelationEvents.size(); i++) { |
| EventEntry* cancelationEventEntry = mTempCancelationEvents.itemAt(i); |
| switch (cancelationEventEntry->type) { |
| case EventEntry::TYPE_KEY: |
| logOutboundKeyDetailsLocked("cancel - ", |
| static_cast<KeyEntry*>(cancelationEventEntry)); |
| break; |
| case EventEntry::TYPE_MOTION: |
| logOutboundMotionDetailsLocked("cancel - ", |
| static_cast<MotionEntry*>(cancelationEventEntry)); |
| break; |
| } |
| |
| InputTarget target; |
| sp<InputWindowHandle> windowHandle = getWindowHandleLocked(connection->inputChannel); |
| if (windowHandle != NULL) { |
| target.xOffset = -windowHandle->frameLeft; |
| target.yOffset = -windowHandle->frameTop; |
| target.scaleFactor = windowHandle->scaleFactor; |
| } else { |
| target.xOffset = 0; |
| target.yOffset = 0; |
| target.scaleFactor = 1.0f; |
| } |
| target.inputChannel = connection->inputChannel; |
| target.flags = InputTarget::FLAG_DISPATCH_AS_IS; |
| |
| enqueueDispatchEntryLocked(connection, cancelationEventEntry, // increments ref |
| &target, false, InputTarget::FLAG_DISPATCH_AS_IS); |
| |
| cancelationEventEntry->release(); |
| } |
| |
| if (!connection->outboundQueue.head->inProgress) { |
| startDispatchCycleLocked(currentTime, connection); |
| } |
| } |
| } |
| |
| InputDispatcher::MotionEntry* |
| InputDispatcher::splitMotionEvent(const MotionEntry* originalMotionEntry, BitSet32 pointerIds) { |
| LOG_ASSERT(pointerIds.value != 0); |
| |
| uint32_t splitPointerIndexMap[MAX_POINTERS]; |
| PointerProperties splitPointerProperties[MAX_POINTERS]; |
| PointerCoords splitPointerCoords[MAX_POINTERS]; |
| |
| uint32_t originalPointerCount = originalMotionEntry->pointerCount; |
| uint32_t splitPointerCount = 0; |
| |
| for (uint32_t originalPointerIndex = 0; originalPointerIndex < originalPointerCount; |
| originalPointerIndex++) { |
| const PointerProperties& pointerProperties = |
| originalMotionEntry->pointerProperties[originalPointerIndex]; |
| uint32_t pointerId = uint32_t(pointerProperties.id); |
| if (pointerIds.hasBit(pointerId)) { |
| splitPointerIndexMap[splitPointerCount] = originalPointerIndex; |
| splitPointerProperties[splitPointerCount].copyFrom(pointerProperties); |
| splitPointerCoords[splitPointerCount].copyFrom( |
| originalMotionEntry->firstSample.pointerCoords[originalPointerIndex]); |
| splitPointerCount += 1; |
| } |
| } |
| |
| if (splitPointerCount != pointerIds.count()) { |
| // This is bad. We are missing some of the pointers that we expected to deliver. |
| // Most likely this indicates that we received an ACTION_MOVE events that has |
| // different pointer ids than we expected based on the previous ACTION_DOWN |
| // or ACTION_POINTER_DOWN events that caused us to decide to split the pointers |
| // in this way. |
| LOGW("Dropping split motion event because the pointer count is %d but " |
| "we expected there to be %d pointers. This probably means we received " |
| "a broken sequence of pointer ids from the input device.", |
| splitPointerCount, pointerIds.count()); |
| return NULL; |
| } |
| |
| int32_t action = originalMotionEntry->action; |
| int32_t maskedAction = action & AMOTION_EVENT_ACTION_MASK; |
| if (maskedAction == AMOTION_EVENT_ACTION_POINTER_DOWN |
| || maskedAction == AMOTION_EVENT_ACTION_POINTER_UP) { |
| int32_t originalPointerIndex = getMotionEventActionPointerIndex(action); |
| const PointerProperties& pointerProperties = |
| originalMotionEntry->pointerProperties[originalPointerIndex]; |
| uint32_t pointerId = uint32_t(pointerProperties.id); |
| if (pointerIds.hasBit(pointerId)) { |
| if (pointerIds.count() == 1) { |
| // The first/last pointer went down/up. |
| action = maskedAction == AMOTION_EVENT_ACTION_POINTER_DOWN |
| ? AMOTION_EVENT_ACTION_DOWN : AMOTION_EVENT_ACTION_UP; |
| } else { |
| // A secondary pointer went down/up. |
| uint32_t splitPointerIndex = 0; |
| while (pointerId != uint32_t(splitPointerProperties[splitPointerIndex].id)) { |
| splitPointerIndex += 1; |
| } |
| action = maskedAction | (splitPointerIndex |
| << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT); |
| } |
| } else { |
| // An unrelated pointer changed. |
| action = AMOTION_EVENT_ACTION_MOVE; |
| } |
| } |
| |
| MotionEntry* splitMotionEntry = new MotionEntry( |
| originalMotionEntry->eventTime, |
| originalMotionEntry->deviceId, |
| originalMotionEntry->source, |
| originalMotionEntry->policyFlags, |
| action, |
| originalMotionEntry->flags, |
| originalMotionEntry->metaState, |
| originalMotionEntry->buttonState, |
| originalMotionEntry->edgeFlags, |
| originalMotionEntry->xPrecision, |
| originalMotionEntry->yPrecision, |
| originalMotionEntry->downTime, |
| splitPointerCount, splitPointerProperties, splitPointerCoords); |
| |
| for (MotionSample* originalMotionSample = originalMotionEntry->firstSample.next; |
| originalMotionSample != NULL; originalMotionSample = originalMotionSample->next) { |
| for (uint32_t splitPointerIndex = 0; splitPointerIndex < splitPointerCount; |
| splitPointerIndex++) { |
| uint32_t originalPointerIndex = splitPointerIndexMap[splitPointerIndex]; |
| splitPointerCoords[splitPointerIndex].copyFrom( |
| originalMotionSample->pointerCoords[originalPointerIndex]); |
| } |
| |
| splitMotionEntry->appendSample(originalMotionSample->eventTime, splitPointerCoords); |
| } |
| |
| if (originalMotionEntry->injectionState) { |
| splitMotionEntry->injectionState = originalMotionEntry->injectionState; |
| splitMotionEntry->injectionState->refCount += 1; |
| } |
| |
| return splitMotionEntry; |
| } |
| |
| void InputDispatcher::notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args) { |
| #if DEBUG_INBOUND_EVENT_DETAILS |
| LOGD("notifyConfigurationChanged - eventTime=%lld", args->eventTime); |
| #endif |
| |
| bool needWake; |
| { // acquire lock |
| AutoMutex _l(mLock); |
| |
| ConfigurationChangedEntry* newEntry = new ConfigurationChangedEntry(args->eventTime); |
| needWake = enqueueInboundEventLocked(newEntry); |
| } // release lock |
| |
| if (needWake) { |
| mLooper->wake(); |
| } |
| } |
| |
| void InputDispatcher::notifyKey(const NotifyKeyArgs* args) { |
| #if DEBUG_INBOUND_EVENT_DETAILS |
| LOGD("notifyKey - eventTime=%lld, deviceId=%d, source=0x%x, policyFlags=0x%x, action=0x%x, " |
| "flags=0x%x, keyCode=0x%x, scanCode=0x%x, metaState=0x%x, downTime=%lld", |
| args->eventTime, args->deviceId, args->source, args->policyFlags, |
| args->action, args->flags, args->keyCode, args->scanCode, |
| args->metaState, args->downTime); |
| #endif |
| if (!validateKeyEvent(args->action)) { |
| return; |
| } |
| |
| uint32_t policyFlags = args->policyFlags; |
| int32_t flags = args->flags; |
| int32_t metaState = args->metaState; |
| if ((policyFlags & POLICY_FLAG_VIRTUAL) || (flags & AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY)) { |
| policyFlags |= POLICY_FLAG_VIRTUAL; |
| flags |= AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY; |
| } |
| if (policyFlags & POLICY_FLAG_ALT) { |
| metaState |= AMETA_ALT_ON | AMETA_ALT_LEFT_ON; |
| } |
| if (policyFlags & POLICY_FLAG_ALT_GR) { |
| metaState |= AMETA_ALT_ON | AMETA_ALT_RIGHT_ON; |
| } |
| if (policyFlags & POLICY_FLAG_SHIFT) { |
| metaState |= AMETA_SHIFT_ON | AMETA_SHIFT_LEFT_ON; |
| } |
| if (policyFlags & POLICY_FLAG_CAPS_LOCK) { |
| metaState |= AMETA_CAPS_LOCK_ON; |
| } |
| if (policyFlags & POLICY_FLAG_FUNCTION) { |
| metaState |= AMETA_FUNCTION_ON; |
| } |
| |
| policyFlags |= POLICY_FLAG_TRUSTED; |
| |
| KeyEvent event; |
| event.initialize(args->deviceId, args->source, args->action, |
| flags, args->keyCode, args->scanCode, metaState, 0, |
| args->downTime, args->eventTime); |
| |
| mPolicy->interceptKeyBeforeQueueing(&event, /*byref*/ policyFlags); |
| |
| if (policyFlags & POLICY_FLAG_WOKE_HERE) { |
| flags |= AKEY_EVENT_FLAG_WOKE_HERE; |
| } |
| |
| bool needWake; |
| { // acquire lock |
| mLock.lock(); |
| |
| if (mInputFilterEnabled) { |
| mLock.unlock(); |
| |
| policyFlags |= POLICY_FLAG_FILTERED; |
| if (!mPolicy->filterInputEvent(&event, policyFlags)) { |
| return; // event was consumed by the filter |
| } |
| |
| mLock.lock(); |
| } |
| |
| int32_t repeatCount = 0; |
| KeyEntry* newEntry = new KeyEntry(args->eventTime, |
| args->deviceId, args->source, policyFlags, |
| args->action, flags, args->keyCode, args->scanCode, |
| metaState, repeatCount, args->downTime); |
| |
| needWake = enqueueInboundEventLocked(newEntry); |
| mLock.unlock(); |
| } // release lock |
| |
| if (needWake) { |
| mLooper->wake(); |
| } |
| } |
| |
| void InputDispatcher::notifyMotion(const NotifyMotionArgs* args) { |
| #if DEBUG_INBOUND_EVENT_DETAILS |
| LOGD("notifyMotion - eventTime=%lld, deviceId=%d, source=0x%x, policyFlags=0x%x, " |
| "action=0x%x, flags=0x%x, metaState=0x%x, buttonState=0x%x, edgeFlags=0x%x, " |
| "xPrecision=%f, yPrecision=%f, downTime=%lld", |
| args->eventTime, args->deviceId, args->source, args->policyFlags, |
| args->action, args->flags, args->metaState, args->buttonState, |
| args->edgeFlags, args->xPrecision, args->yPrecision, args->downTime); |
| for (uint32_t i = 0; i < args->pointerCount; i++) { |
| LOGD(" Pointer %d: id=%d, toolType=%d, " |
| "x=%f, y=%f, pressure=%f, size=%f, " |
| "touchMajor=%f, touchMinor=%f, toolMajor=%f, toolMinor=%f, " |
| "orientation=%f", |
| i, args->pointerProperties[i].id, |
| args->pointerProperties[i].toolType, |
| args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_X), |
| args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_Y), |
| args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_PRESSURE), |
| args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_SIZE), |
| args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR), |
| args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR), |
| args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR), |
| args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR), |
| args->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION)); |
| } |
| #endif |
| if (!validateMotionEvent(args->action, args->pointerCount, args->pointerProperties)) { |
| return; |
| } |
| |
| uint32_t policyFlags = args->policyFlags; |
| policyFlags |= POLICY_FLAG_TRUSTED; |
| mPolicy->interceptMotionBeforeQueueing(args->eventTime, /*byref*/ policyFlags); |
| |
| bool needWake; |
| { // acquire lock |
| mLock.lock(); |
| |
| if (mInputFilterEnabled) { |
| mLock.unlock(); |
| |
| MotionEvent event; |
| event.initialize(args->deviceId, args->source, args->action, args->flags, |
| args->edgeFlags, args->metaState, args->buttonState, 0, 0, |
| args->xPrecision, args->yPrecision, |
| args->downTime, args->eventTime, |
| args->pointerCount, args->pointerProperties, args->pointerCoords); |
| |
| policyFlags |= POLICY_FLAG_FILTERED; |
| if (!mPolicy->filterInputEvent(&event, policyFlags)) { |
| return; // event was consumed by the filter |
| } |
| |
| mLock.lock(); |
| } |
| |
| // Attempt batching and streaming of move events. |
| if (args->action == AMOTION_EVENT_ACTION_MOVE |
| || args->action == AMOTION_EVENT_ACTION_HOVER_MOVE) { |
| // BATCHING CASE |
| // |
| // Try to append a move sample to the tail of the inbound queue for this device. |
| // Give up if we encounter a non-move motion event for this device since that |
| // means we cannot append any new samples until a new motion event has started. |
| for (EventEntry* entry = mInboundQueue.tail; entry; entry = entry->prev) { |
| if (entry->type != EventEntry::TYPE_MOTION) { |
| // Keep looking for motion events. |
| continue; |
| } |
| |
| MotionEntry* motionEntry = static_cast<MotionEntry*>(entry); |
| if (motionEntry->deviceId != args->deviceId |
| || motionEntry->source != args->source) { |
| // Keep looking for this device and source. |
| continue; |
| } |
| |
| if (!motionEntry->canAppendSamples(args->action, |
| args->pointerCount, args->pointerProperties)) { |
| // Last motion event in the queue for this device and source is |
| // not compatible for appending new samples. Stop here. |
| goto NoBatchingOrStreaming; |
| } |
| |
| // Do the batching magic. |
| batchMotionLocked(motionEntry, args->eventTime, |
| args->metaState, args->pointerCoords, |
| "most recent motion event for this device and source in the inbound queue"); |
| mLock.unlock(); |
| return; // done! |
| } |
| |
| // BATCHING ONTO PENDING EVENT CASE |
| // |
| // Try to append a move sample to the currently pending event, if there is one. |
| // We can do this as long as we are still waiting to find the targets for the |
| // event. Once the targets are locked-in we can only do streaming. |
| if (mPendingEvent |
| && (!mPendingEvent->dispatchInProgress || !mCurrentInputTargetsValid) |
| && mPendingEvent->type == EventEntry::TYPE_MOTION) { |
| MotionEntry* motionEntry = static_cast<MotionEntry*>(mPendingEvent); |
| if (motionEntry->deviceId == args->deviceId |
| && motionEntry->source == args->source) { |
| if (!motionEntry->canAppendSamples(args->action, |
| args->pointerCount, args->pointerProperties)) { |
| // Pending motion event is for this device and source but it is |
| // not compatible for appending new samples. Stop here. |
| goto NoBatchingOrStreaming; |
| } |
| |
| // Do the batching magic. |
| batchMotionLocked(motionEntry, args->eventTime, |
| args->metaState, args->pointerCoords, |
| "pending motion event"); |
| mLock.unlock(); |
| return; // done! |
| } |
| } |
| |
| // STREAMING CASE |
| // |
| // There is no pending motion event (of any kind) for this device in the inbound queue. |
| // Search the outbound queue for the current foreground targets to find a dispatched |
| // motion event that is still in progress. If found, then, appen the new sample to |
| // that event and push it out to all current targets. The logic in |
| // prepareDispatchCycleLocked takes care of the case where some targets may |
| // already have consumed the motion event by starting a new dispatch cycle if needed. |
| if (mCurrentInputTargetsValid) { |
| for (size_t i = 0; i < mCurrentInputTargets.size(); i++) { |
| const InputTarget& inputTarget = mCurrentInputTargets[i]; |
| if ((inputTarget.flags & InputTarget::FLAG_FOREGROUND) == 0) { |
| // Skip non-foreground targets. We only want to stream if there is at |
| // least one foreground target whose dispatch is still in progress. |
| continue; |
| } |
| |
| ssize_t connectionIndex = getConnectionIndexLocked(inputTarget.inputChannel); |
| if (connectionIndex < 0) { |
| // Connection must no longer be valid. |
| continue; |
| } |
| |
| sp<Connection> connection = mConnectionsByReceiveFd.valueAt(connectionIndex); |
| if (connection->outboundQueue.isEmpty()) { |
| // This foreground target has an empty outbound queue. |
| continue; |
| } |
| |
| DispatchEntry* dispatchEntry = connection->outboundQueue.head; |
| if (! dispatchEntry->inProgress |
| || dispatchEntry->eventEntry->type != EventEntry::TYPE_MOTION |
| || dispatchEntry->isSplit()) { |
| // No motion event is being dispatched, or it is being split across |
| // windows in which case we cannot stream. |
| continue; |
| } |
| |
| MotionEntry* motionEntry = static_cast<MotionEntry*>( |
| dispatchEntry->eventEntry); |
| if (motionEntry->action != args->action |
| || motionEntry->deviceId != args->deviceId |
| || motionEntry->source != args->source |
| || motionEntry->pointerCount != args->pointerCount |
| || motionEntry->isInjected()) { |
| // The motion event is not compatible with this move. |
| continue; |
| } |
| |
| if (args->action == AMOTION_EVENT_ACTION_HOVER_MOVE) { |
| if (mLastHoverWindowHandle == NULL) { |
| #if DEBUG_BATCHING |
| LOGD("Not streaming hover move because there is no " |
| "last hovered window."); |
| #endif |
| goto NoBatchingOrStreaming; |
| } |
| |
| sp<InputWindowHandle> hoverWindowHandle = findTouchedWindowAtLocked( |
| args->pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_X), |
| args->pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_Y)); |
| if (mLastHoverWindowHandle != hoverWindowHandle) { |
| #if DEBUG_BATCHING |
| LOGD("Not streaming hover move because the last hovered window " |
| "is '%s' but the currently hovered window is '%s'.", |
| mLastHoverWindowHandle->name.string(), |
| hoverWindowHandle != NULL |
| ? hoverWindowHandle->name.string() : "<null>"); |
| #endif |
| goto NoBatchingOrStreaming; |
| } |
| } |
| |
| // Hurray! This foreground target is currently dispatching a move event |
| // that we can stream onto. Append the motion sample and resume dispatch. |
| motionEntry->appendSample(args->eventTime, args->pointerCoords); |
| #if DEBUG_BATCHING |
| LOGD("Appended motion sample onto batch for most recently dispatched " |
| "motion event for this device and source in the outbound queues. " |
| "Attempting to stream the motion sample."); |
| #endif |
| nsecs_t currentTime = now(); |
| dispatchEventToCurrentInputTargetsLocked(currentTime, motionEntry, |
| true /*resumeWithAppendedMotionSample*/); |
| |
| runCommandsLockedInterruptible(); |
| mLock.unlock(); |
| return; // done! |
| } |
| } |
| |
| NoBatchingOrStreaming:; |
| } |
| |
| // Just enqueue a new motion event. |
| MotionEntry* newEntry = new MotionEntry(args->eventTime, |
| args->deviceId, args->source, policyFlags, |
| args->action, args->flags, args->metaState, args->buttonState, |
| args->edgeFlags, args->xPrecision, args->yPrecision, args->downTime, |
| args->pointerCount, args->pointerProperties, args->pointerCoords); |
| |
| needWake = enqueueInboundEventLocked(newEntry); |
| mLock.unlock(); |
| } // release lock |
| |
| if (needWake) { |
| mLooper->wake(); |
| } |
| } |
| |
| void InputDispatcher::batchMotionLocked(MotionEntry* entry, nsecs_t eventTime, |
| int32_t metaState, const PointerCoords* pointerCoords, const char* eventDescription) { |
| // Combine meta states. |
| entry->metaState |= metaState; |
| |
| // Coalesce this sample if not enough time has elapsed since the last sample was |
| // initially appended to the batch. |
| MotionSample* lastSample = entry->lastSample; |
| long interval = eventTime - lastSample->eventTimeBeforeCoalescing; |
| if (interval <= MOTION_SAMPLE_COALESCE_INTERVAL) { |
| uint32_t pointerCount = entry->pointerCount; |
| for (uint32_t i = 0; i < pointerCount; i++) { |
| lastSample->pointerCoords[i].copyFrom(pointerCoords[i]); |
| } |
| lastSample->eventTime = eventTime; |
| #if DEBUG_BATCHING |
| LOGD("Coalesced motion into last sample of batch for %s, events were %0.3f ms apart", |
| eventDescription, interval * 0.000001f); |
| #endif |
| return; |
| } |
| |
| // Append the sample. |
| entry->appendSample(eventTime, pointerCoords); |
| #if DEBUG_BATCHING |
| LOGD("Appended motion sample onto batch for %s, events were %0.3f ms apart", |
| eventDescription, interval * 0.000001f); |
| #endif |
| } |
| |
| void InputDispatcher::notifySwitch(const NotifySwitchArgs* args) { |
| #if DEBUG_INBOUND_EVENT_DETAILS |
| LOGD("notifySwitch - eventTime=%lld, policyFlags=0x%x, switchCode=%d, switchValue=%d", |
| args->eventTime, args->policyFlags, |
| args->switchCode, args->switchValue); |
| #endif |
| |
| uint32_t policyFlags = args->policyFlags; |
| policyFlags |= POLICY_FLAG_TRUSTED; |
| mPolicy->notifySwitch(args->eventTime, |
| args->switchCode, args->switchValue, policyFlags); |
| } |
| |
| int32_t InputDispatcher::injectInputEvent(const InputEvent* event, |
| int32_t injectorPid, int32_t injectorUid, int32_t syncMode, int32_t timeoutMillis, |
| uint32_t policyFlags) { |
| #if DEBUG_INBOUND_EVENT_DETAILS |
| LOGD("injectInputEvent - eventType=%d, injectorPid=%d, injectorUid=%d, " |
| "syncMode=%d, timeoutMillis=%d, policyFlags=0x%08x", |
| event->getType(), injectorPid, injectorUid, syncMode, timeoutMillis, policyFlags); |
| #endif |
| |
| nsecs_t endTime = now() + milliseconds_to_nanoseconds(timeoutMillis); |
| |
| policyFlags |= POLICY_FLAG_INJECTED; |
| if (hasInjectionPermission(injectorPid, injectorUid)) { |
| policyFlags |= POLICY_FLAG_TRUSTED; |
| } |
| |
| EventEntry* injectedEntry; |
| switch (event->getType()) { |
| case AINPUT_EVENT_TYPE_KEY: { |
| const KeyEvent* keyEvent = static_cast<const KeyEvent*>(event); |
| int32_t action = keyEvent->getAction(); |
| if (! validateKeyEvent(action)) { |
| return INPUT_EVENT_INJECTION_FAILED; |
| } |
| |
| int32_t flags = keyEvent->getFlags(); |
| if (flags & AKEY_EVENT_FLAG_VIRTUAL_HARD_KEY) { |
| policyFlags |= POLICY_FLAG_VIRTUAL; |
| } |
| |
| if (!(policyFlags & POLICY_FLAG_FILTERED)) { |
| mPolicy->interceptKeyBeforeQueueing(keyEvent, /*byref*/ policyFlags); |
| } |
| |
| if (policyFlags & POLICY_FLAG_WOKE_HERE) { |
| flags |= AKEY_EVENT_FLAG_WOKE_HERE; |
| } |
| |
| mLock.lock(); |
| injectedEntry = new KeyEntry(keyEvent->getEventTime(), |
| keyEvent->getDeviceId(), keyEvent->getSource(), |
| policyFlags, action, flags, |
| keyEvent->getKeyCode(), keyEvent->getScanCode(), keyEvent->getMetaState(), |
| keyEvent->getRepeatCount(), keyEvent->getDownTime()); |
| break; |
| } |
| |
| case AINPUT_EVENT_TYPE_MOTION: { |
| const MotionEvent* motionEvent = static_cast<const MotionEvent*>(event); |
| int32_t action = motionEvent->getAction(); |
| size_t pointerCount = motionEvent->getPointerCount(); |
| const PointerProperties* pointerProperties = motionEvent->getPointerProperties(); |
| if (! validateMotionEvent(action, pointerCount, pointerProperties)) { |
| return INPUT_EVENT_INJECTION_FAILED; |
| } |
| |
| if (!(policyFlags & POLICY_FLAG_FILTERED)) { |
| nsecs_t eventTime = motionEvent->getEventTime(); |
| mPolicy->interceptMotionBeforeQueueing(eventTime, /*byref*/ policyFlags); |
| } |
| |
| mLock.lock(); |
| const nsecs_t* sampleEventTimes = motionEvent->getSampleEventTimes(); |
| const PointerCoords* samplePointerCoords = motionEvent->getSamplePointerCoords(); |
| MotionEntry* motionEntry = new MotionEntry(*sampleEventTimes, |
| motionEvent->getDeviceId(), motionEvent->getSource(), policyFlags, |
| action, motionEvent->getFlags(), |
| motionEvent->getMetaState(), motionEvent->getButtonState(), |
| motionEvent->getEdgeFlags(), |
| motionEvent->getXPrecision(), motionEvent->getYPrecision(), |
| motionEvent->getDownTime(), uint32_t(pointerCount), |
| pointerProperties, samplePointerCoords); |
| for (size_t i = motionEvent->getHistorySize(); i > 0; i--) { |
| sampleEventTimes += 1; |
| samplePointerCoords += pointerCount; |
| motionEntry->appendSample(*sampleEventTimes, samplePointerCoords); |
| } |
| injectedEntry = motionEntry; |
| break; |
| } |
| |
| default: |
| LOGW("Cannot inject event of type %d", event->getType()); |
| return INPUT_EVENT_INJECTION_FAILED; |
| } |
| |
| InjectionState* injectionState = new InjectionState(injectorPid, injectorUid); |
| if (syncMode == INPUT_EVENT_INJECTION_SYNC_NONE) { |
| injectionState->injectionIsAsync = true; |
| } |
| |
| injectionState->refCount += 1; |
| injectedEntry->injectionState = injectionState; |
| |
| bool needWake = enqueueInboundEventLocked(injectedEntry); |
| mLock.unlock(); |
| |
| if (needWake) { |
| mLooper->wake(); |
| } |
| |
| int32_t injectionResult; |
| { // acquire lock |
| AutoMutex _l(mLock); |
| |
| if (syncMode == INPUT_EVENT_INJECTION_SYNC_NONE) { |
| injectionResult = INPUT_EVENT_INJECTION_SUCCEEDED; |
| } else { |
| for (;;) { |
| injectionResult = injectionState->injectionResult; |
| if (injectionResult != INPUT_EVENT_INJECTION_PENDING) { |
| break; |
| } |
| |
| nsecs_t remainingTimeout = endTime - now(); |
| if (remainingTimeout <= 0) { |
| #if DEBUG_INJECTION |
| LOGD("injectInputEvent - Timed out waiting for injection result " |
| "to become available."); |
| #endif |
| injectionResult = INPUT_EVENT_INJECTION_TIMED_OUT; |
| break; |
| } |
| |
| mInjectionResultAvailableCondition.waitRelative(mLock, remainingTimeout); |
| } |
| |
| if (injectionResult == INPUT_EVENT_INJECTION_SUCCEEDED |
| && syncMode == INPUT_EVENT_INJECTION_SYNC_WAIT_FOR_FINISHED) { |
| while (injectionState->pendingForegroundDispatches != 0) { |
| #if DEBUG_INJECTION |
| LOGD("injectInputEvent - Waiting for %d pending foreground dispatches.", |
| injectionState->pendingForegroundDispatches); |
| #endif |
| nsecs_t remainingTimeout = endTime - now(); |
| if (remainingTimeout <= 0) { |
| #if DEBUG_INJECTION |
| LOGD("injectInputEvent - Timed out waiting for pending foreground " |
| "dispatches to finish."); |
| #endif |
| injectionResult = INPUT_EVENT_INJECTION_TIMED_OUT; |
| break; |
| } |
| |
| mInjectionSyncFinishedCondition.waitRelative(mLock, remainingTimeout); |
| } |
| } |
| } |
| |
| injectionState->release(); |
| } // release lock |
| |
| #if DEBUG_INJECTION |
| LOGD("injectInputEvent - Finished with result %d. " |
| "injectorPid=%d, injectorUid=%d", |
| injectionResult, injectorPid, injectorUid); |
| #endif |
| |
| return injectionResult; |
| } |
| |
| bool InputDispatcher::hasInjectionPermission(int32_t injectorPid, int32_t injectorUid) { |
| return injectorUid == 0 |
| || mPolicy->checkInjectEventsPermissionNonReentrant(injectorPid, injectorUid); |
| } |
| |
| void InputDispatcher::setInjectionResultLocked(EventEntry* entry, int32_t injectionResult) { |
| InjectionState* injectionState = entry->injectionState; |
| if (injectionState) { |
| #if DEBUG_INJECTION |
| LOGD("Setting input event injection result to %d. " |
| "injectorPid=%d, injectorUid=%d", |
| injectionResult, injectionState->injectorPid, injectionState->injectorUid); |
| #endif |
| |
| if (injectionState->injectionIsAsync |
| && !(entry->policyFlags & POLICY_FLAG_FILTERED)) { |
| // Log the outcome since the injector did not wait for the injection result. |
| switch (injectionResult) { |
| case INPUT_EVENT_INJECTION_SUCCEEDED: |
| LOGV("Asynchronous input event injection succeeded."); |
| break; |
| case INPUT_EVENT_INJECTION_FAILED: |
| LOGW("Asynchronous input event injection failed."); |
| break; |
| case INPUT_EVENT_INJECTION_PERMISSION_DENIED: |
| LOGW("Asynchronous input event injection permission denied."); |
| break; |
| case INPUT_EVENT_INJECTION_TIMED_OUT: |
| LOGW("Asynchronous input event injection timed out."); |
| break; |
| } |
| } |
| |
| injectionState->injectionResult = injectionResult; |
| mInjectionResultAvailableCondition.broadcast(); |
| } |
| } |
| |
| void InputDispatcher::incrementPendingForegroundDispatchesLocked(EventEntry* entry) { |
| InjectionState* injectionState = entry->injectionState; |
| if (injectionState) { |
| injectionState->pendingForegroundDispatches += 1; |
| } |
| } |
| |
| void InputDispatcher::decrementPendingForegroundDispatchesLocked(EventEntry* entry) { |
| InjectionState* injectionState = entry->injectionState; |
| if (injectionState) { |
| injectionState->pendingForegroundDispatches -= 1; |
| |
| if (injectionState->pendingForegroundDispatches == 0) { |
| mInjectionSyncFinishedCondition.broadcast(); |
| } |
| } |
| } |
| |
| sp<InputWindowHandle> InputDispatcher::getWindowHandleLocked( |
| const sp<InputChannel>& inputChannel) const { |
| size_t numWindows = mWindowHandles.size(); |
| for (size_t i = 0; i < numWindows; i++) { |
| const sp<InputWindowHandle>& windowHandle = mWindowHandles.itemAt(i); |
| if (windowHandle->inputChannel == inputChannel) { |
| return windowHandle; |
| } |
| } |
| return NULL; |
| } |
| |
| bool InputDispatcher::hasWindowHandleLocked( |
| const sp<InputWindowHandle>& windowHandle) const { |
| size_t numWindows = mWindowHandles.size(); |
| for (size_t i = 0; i < numWindows; i++) { |
| if (mWindowHandles.itemAt(i) == windowHandle) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| void InputDispatcher::setInputWindows(const Vector<sp<InputWindowHandle> >& inputWindowHandles) { |
| #if DEBUG_FOCUS |
| LOGD("setInputWindows"); |
| #endif |
| { // acquire lock |
| AutoMutex _l(mLock); |
| |
| mWindowHandles = inputWindowHandles; |
| |
| sp<InputWindowHandle> newFocusedWindowHandle; |
| bool foundHoveredWindow = false; |
| for (size_t i = 0; i < mWindowHandles.size(); i++) { |
| const sp<InputWindowHandle>& windowHandle = mWindowHandles.itemAt(i); |
| if (!windowHandle->update() || windowHandle->inputChannel == NULL) { |
| mWindowHandles.removeAt(i--); |
| continue; |
| } |
| if (windowHandle->hasFocus) { |
| newFocusedWindowHandle = windowHandle; |
| } |
| if (windowHandle == mLastHoverWindowHandle) { |
| foundHoveredWindow = true; |
| } |
| } |
| |
| if (!foundHoveredWindow) { |
| mLastHoverWindowHandle = NULL; |
| } |
| |
| if (mFocusedWindowHandle != newFocusedWindowHandle) { |
| if (mFocusedWindowHandle != NULL) { |
| #if DEBUG_FOCUS |
| LOGD("Focus left window: %s", |
| mFocusedWindowHandle->name.string()); |
| #endif |
| CancelationOptions options(CancelationOptions::CANCEL_NON_POINTER_EVENTS, |
| "focus left window"); |
| synthesizeCancelationEventsForInputChannelLocked( |
| mFocusedWindowHandle->inputChannel, options); |
| } |
| if (newFocusedWindowHandle != NULL) { |
| #if DEBUG_FOCUS |
| LOGD("Focus entered window: %s", |
| newFocusedWindowHandle->name.string()); |
| #endif |
| } |
| mFocusedWindowHandle = newFocusedWindowHandle; |
| } |
| |
| for (size_t i = 0; i < mTouchState.windows.size(); i++) { |
| TouchedWindow& touchedWindow = mTouchState.windows.editItemAt(i); |
| if (!hasWindowHandleLocked(touchedWindow.windowHandle)) { |
| #if DEBUG_FOCUS |
| LOGD("Touched window was removed: %s", touchedWindow.windowHandle->name.string()); |
| #endif |
| CancelationOptions options(CancelationOptions::CANCEL_POINTER_EVENTS, |
| "touched window was removed"); |
| synthesizeCancelationEventsForInputChannelLocked( |
| touchedWindow.windowHandle->inputChannel, options); |
| mTouchState.windows.removeAt(i--); |
| } |
| } |
| } // release lock |
| |
| // Wake up poll loop since it may need to make new input dispatching choices. |
| mLooper->wake(); |
| } |
| |
| void InputDispatcher::setFocusedApplication( |
| const sp<InputApplicationHandle>& inputApplicationHandle) { |
| #if DEBUG_FOCUS |
| LOGD("setFocusedApplication"); |
| #endif |
| { // acquire lock |
| AutoMutex _l(mLock); |
| |
| if (inputApplicationHandle != NULL && inputApplicationHandle->update()) { |
| if (mFocusedApplicationHandle != inputApplicationHandle) { |
| if (mFocusedApplicationHandle != NULL) { |
| resetTargetsLocked(); |
| } |
| mFocusedApplicationHandle = inputApplicationHandle; |
| } |
| } else if (mFocusedApplicationHandle != NULL) { |
| resetTargetsLocked(); |
| mFocusedApplicationHandle.clear(); |
| } |
| |
| #if DEBUG_FOCUS |
| //logDispatchStateLocked(); |
| #endif |
| } // release lock |
| |
| // Wake up poll loop since it may need to make new input dispatching choices. |
| mLooper->wake(); |
| } |
| |
| void InputDispatcher::setInputDispatchMode(bool enabled, bool frozen) { |
| #if DEBUG_FOCUS |
| LOGD("setInputDispatchMode: enabled=%d, frozen=%d", enabled, frozen); |
| #endif |
| |
| bool changed; |
| { // acquire lock |
| AutoMutex _l(mLock); |
| |
| if (mDispatchEnabled != enabled || mDispatchFrozen != frozen) { |
| if (mDispatchFrozen && !frozen) { |
| resetANRTimeoutsLocked(); |
| } |
| |
| if (mDispatchEnabled && !enabled) { |
| resetAndDropEverythingLocked("dispatcher is being disabled"); |
| } |
| |
| mDispatchEnabled = enabled; |
| mDispatchFrozen = frozen; |
| changed = true; |
| } else { |
| changed = false; |
| } |
| |
| #if DEBUG_FOCUS |
| //logDispatchStateLocked(); |
| #endif |
| } // release lock |
| |
| if (changed) { |
| // Wake up poll loop since it may need to make new input dispatching choices. |
| mLooper->wake(); |
| } |
| } |
| |
| void InputDispatcher::setInputFilterEnabled(bool enabled) { |
| #if DEBUG_FOCUS |
| LOGD("setInputFilterEnabled: enabled=%d", enabled); |
| #endif |
| |
| { // acquire lock |
| AutoMutex _l(mLock); |
| |
| if (mInputFilterEnabled == enabled) { |
| return; |
| } |
| |
| mInputFilterEnabled = enabled; |
| resetAndDropEverythingLocked("input filter is being enabled or disabled"); |
| } // release lock |
| |
| // Wake up poll loop since there might be work to do to drop everything. |
| mLooper->wake(); |
| } |
| |
| bool InputDispatcher::transferTouchFocus(const sp<InputChannel>& fromChannel, |
| const sp<InputChannel>& toChannel) { |
| #if DEBUG_FOCUS |
| LOGD("transferTouchFocus: fromChannel=%s, toChannel=%s", |
| fromChannel->getName().string(), toChannel->getName().string()); |
| #endif |
| { // acquire lock |
| AutoMutex _l(mLock); |
| |
| sp<InputWindowHandle> fromWindowHandle = getWindowHandleLocked(fromChannel); |
| sp<InputWindowHandle> toWindowHandle = getWindowHandleLocked(toChannel); |
| if (fromWindowHandle == NULL || toWindowHandle == NULL) { |
| #if DEBUG_FOCUS |
| LOGD("Cannot transfer focus because from or to window not found."); |
| #endif |
| return false; |
| } |
| if (fromWindowHandle == toWindowHandle) { |
| #if DEBUG_FOCUS |
| LOGD("Trivial transfer to same window."); |
| #endif |
| return true; |
| } |
| |
| bool found = false; |
| for (size_t i = 0; i < mTouchState.windows.size(); i++) { |
| const TouchedWindow& touchedWindow = mTouchState.windows[i]; |
| if (touchedWindow.windowHandle == fromWindowHandle) { |
| int32_t oldTargetFlags = touchedWindow.targetFlags; |
| BitSet32 pointerIds = touchedWindow.pointerIds; |
| |
| mTouchState.windows.removeAt(i); |
| |
| int32_t newTargetFlags = oldTargetFlags |
| & (InputTarget::FLAG_FOREGROUND |
| | InputTarget::FLAG_SPLIT | InputTarget::FLAG_DISPATCH_AS_IS); |
| mTouchState.addOrUpdateWindow(toWindowHandle, newTargetFlags, pointerIds); |
| |
| found = true; |
| break; |
| } |
| } |
| |
| if (! found) { |
| #if DEBUG_FOCUS |
| LOGD("Focus transfer failed because from window did not have focus."); |
| #endif |
| return false; |
| } |
| |
| ssize_t fromConnectionIndex = getConnectionIndexLocked(fromChannel); |
| ssize_t toConnectionIndex = getConnectionIndexLocked(toChannel); |
| if (fromConnectionIndex >= 0 && toConnectionIndex >= 0) { |
| sp<Connection> fromConnection = mConnectionsByReceiveFd.valueAt(fromConnectionIndex); |
| sp<Connection> toConnection = mConnectionsByReceiveFd.valueAt(toConnectionIndex); |
| |
| fromConnection->inputState.copyPointerStateTo(toConnection->inputState); |
| CancelationOptions options(CancelationOptions::CANCEL_POINTER_EVENTS, |
| "transferring touch focus from this window to another window"); |
| synthesizeCancelationEventsForConnectionLocked(fromConnection, options); |
| } |
| |
| #if DEBUG_FOCUS |
| logDispatchStateLocked(); |
| #endif |
| } // release lock |
| |
| // Wake up poll loop since it may need to make new input dispatching choices. |
| mLooper->wake(); |
| return true; |
| } |
| |
| void InputDispatcher::resetAndDropEverythingLocked(const char* reason) { |
| #if DEBUG_FOCUS |
| LOGD("Resetting and dropping all events (%s).", reason); |
| #endif |
| |
| CancelationOptions options(CancelationOptions::CANCEL_ALL_EVENTS, reason); |
| synthesizeCancelationEventsForAllConnectionsLocked(options); |
| |
| resetKeyRepeatLocked(); |
| releasePendingEventLocked(); |
| drainInboundQueueLocked(); |
| resetTargetsLocked(); |
| |
| mTouchState.reset(); |
| mLastHoverWindowHandle.clear(); |
| } |
| |
| void InputDispatcher::logDispatchStateLocked() { |
| String8 dump; |
| dumpDispatchStateLocked(dump); |
| |
| char* text = dump.lockBuffer(dump.size()); |
| char* start = text; |
| while (*start != '\0') { |
| char* end = strchr(start, '\n'); |
| if (*end == '\n') { |
| *(end++) = '\0'; |
| } |
| LOGD("%s", start); |
| start = end; |
| } |
| } |
| |
| void InputDispatcher::dumpDispatchStateLocked(String8& dump) { |
| dump.appendFormat(INDENT "DispatchEnabled: %d\n", mDispatchEnabled); |
| dump.appendFormat(INDENT "DispatchFrozen: %d\n", mDispatchFrozen); |
| |
| if (mFocusedApplicationHandle != NULL) { |
| dump.appendFormat(INDENT "FocusedApplication: name='%s', dispatchingTimeout=%0.3fms\n", |
| mFocusedApplicationHandle->name.string(), |
| mFocusedApplicationHandle->dispatchingTimeout / 1000000.0); |
| } else { |
| dump.append(INDENT "FocusedApplication: <null>\n"); |
| } |
| dump.appendFormat(INDENT "FocusedWindow: name='%s'\n", |
| mFocusedWindowHandle != NULL ? mFocusedWindowHandle->name.string() : "<null>"); |
| |
| dump.appendFormat(INDENT "TouchDown: %s\n", toString(mTouchState.down)); |
| dump.appendFormat(INDENT "TouchSplit: %s\n", toString(mTouchState.split)); |
| dump.appendFormat(INDENT "TouchDeviceId: %d\n", mTouchState.deviceId); |
| dump.appendFormat(INDENT "TouchSource: 0x%08x\n", mTouchState.source); |
| if (!mTouchState.windows.isEmpty()) { |
| dump.append(INDENT "TouchedWindows:\n"); |
| for (size_t i = 0; i < mTouchState.windows.size(); i++) { |
| const TouchedWindow& touchedWindow = mTouchState.windows[i]; |
| dump.appendFormat(INDENT2 "%d: name='%s', pointerIds=0x%0x, targetFlags=0x%x\n", |
| i, touchedWindow.windowHandle->name.string(), touchedWindow.pointerIds.value, |
| touchedWindow.targetFlags); |
| } |
| } else { |
| dump.append(INDENT "TouchedWindows: <none>\n"); |
| } |
| |
| if (!mWindowHandles.isEmpty()) { |
| dump.append(INDENT "Windows:\n"); |
| for (size_t i = 0; i < mWindowHandles.size(); i++) { |
| const sp<InputWindowHandle>& windowHandle = mWindowHandles.itemAt(i); |
| dump.appendFormat(INDENT2 "%d: name='%s', paused=%s, hasFocus=%s, hasWallpaper=%s, " |
| "visible=%s, canReceiveKeys=%s, flags=0x%08x, type=0x%08x, layer=%d, " |
| "frame=[%d,%d][%d,%d], scale=%f, " |
| "touchableRegion=", |
| i, windowHandle->name.string(), |
| toString(windowHandle->paused), |
| toString(windowHandle->hasFocus), |
| toString(windowHandle->hasWallpaper), |
| toString(windowHandle->visible), |
| toString(windowHandle->canReceiveKeys), |
| windowHandle->layoutParamsFlags, windowHandle->layoutParamsType, |
| windowHandle->layer, |
| windowHandle->frameLeft, windowHandle->frameTop, |
| windowHandle->frameRight, windowHandle->frameBottom, |
| windowHandle->scaleFactor); |
| dumpRegion(dump, windowHandle->touchableRegion); |
| dump.appendFormat(", inputFeatures=0x%08x", windowHandle->inputFeatures); |
| dump.appendFormat(", ownerPid=%d, ownerUid=%d, dispatchingTimeout=%0.3fms\n", |
| windowHandle->ownerPid, windowHandle->ownerUid, |
| windowHandle->dispatchingTimeout / 1000000.0); |
| } |
| } else { |
| dump.append(INDENT "Windows: <none>\n"); |
| } |
| |
| if (!mMonitoringChannels.isEmpty()) { |
| dump.append(INDENT "MonitoringChannels:\n"); |
| for (size_t i = 0; i < mMonitoringChannels.size(); i++) { |
| const sp<InputChannel>& channel = mMonitoringChannels[i]; |
| dump.appendFormat(INDENT2 "%d: '%s'\n", i, channel->getName().string()); |
| } |
| } else { |
| dump.append(INDENT "MonitoringChannels: <none>\n"); |
| } |
| |
| dump.appendFormat(INDENT "InboundQueue: length=%u\n", mInboundQueue.count()); |
| |
| if (!mActiveConnections.isEmpty()) { |
| dump.append(INDENT "ActiveConnections:\n"); |
| for (size_t i = 0; i < mActiveConnections.size(); i++) { |
| const Connection* connection = mActiveConnections[i]; |
| dump.appendFormat(INDENT2 "%d: '%s', status=%s, outboundQueueLength=%u, " |
| "inputState.isNeutral=%s\n", |
| i, connection->getInputChannelName(), connection->getStatusLabel(), |
| connection->outboundQueue.count(), |
| toString(connection->inputState.isNeutral())); |
| } |
| } else { |
| dump.append(INDENT "ActiveConnections: <none>\n"); |
| } |
| |
| if (isAppSwitchPendingLocked()) { |
| dump.appendFormat(INDENT "AppSwitch: pending, due in %01.1fms\n", |
| (mAppSwitchDueTime - now()) / 1000000.0); |
| } else { |
| dump.append(INDENT "AppSwitch: not pending\n"); |
| } |
| } |
| |
| status_t InputDispatcher::registerInputChannel(const sp<InputChannel>& inputChannel, |
| const sp<InputWindowHandle>& inputWindowHandle, bool monitor) { |
| #if DEBUG_REGISTRATION |
| LOGD("channel '%s' ~ registerInputChannel - monitor=%s", inputChannel->getName().string(), |
| toString(monitor)); |
| #endif |
| |
| { // acquire lock |
| AutoMutex _l(mLock); |
| |
| if (getConnectionIndexLocked(inputChannel) >= 0) { |
| LOGW("Attempted to register already registered input channel '%s'", |
| inputChannel->getName().string()); |
| return BAD_VALUE; |
| } |
| |
| sp<Connection> connection = new Connection(inputChannel, inputWindowHandle); |
| status_t status = connection->initialize(); |
| if (status) { |
| LOGE("Failed to initialize input publisher for input channel '%s', status=%d", |
| inputChannel->getName().string(), status); |
| return status; |
| } |
| |
| int32_t receiveFd = inputChannel->getReceivePipeFd(); |
| mConnectionsByReceiveFd.add(receiveFd, connection); |
| |
| if (monitor) { |
| mMonitoringChannels.push(inputChannel); |
| } |
| |
| mLooper->addFd(receiveFd, 0, ALOOPER_EVENT_INPUT, handleReceiveCallback, this); |
| |
| runCommandsLockedInterruptible(); |
| } // release lock |
| return OK; |
| } |
| |
| status_t InputDispatcher::unregisterInputChannel(const sp<InputChannel>& inputChannel) { |
| #if DEBUG_REGISTRATION |
| LOGD("channel '%s' ~ unregisterInputChannel", inputChannel->getName().string()); |
| #endif |
| |
| { // acquire lock |
| AutoMutex _l(mLock); |
| |
| ssize_t connectionIndex = getConnectionIndexLocked(inputChannel); |
| if (connectionIndex < 0) { |
| LOGW("Attempted to unregister already unregistered input channel '%s'", |
| inputChannel->getName().string()); |
| return BAD_VALUE; |
| } |
| |
| sp<Connection> connection = mConnectionsByReceiveFd.valueAt(connectionIndex); |
| mConnectionsByReceiveFd.removeItemsAt(connectionIndex); |
| |
| connection->status = Connection::STATUS_ZOMBIE; |
| |
| for (size_t i = 0; i < mMonitoringChannels.size(); i++) { |
| if (mMonitoringChannels[i] == inputChannel) { |
| mMonitoringChannels.removeAt(i); |
| break; |
| } |
| } |
| |
| mLooper->removeFd(inputChannel->getReceivePipeFd()); |
| |
| nsecs_t currentTime = now(); |
| abortBrokenDispatchCycleLocked(currentTime, connection); |
| |
| runCommandsLockedInterruptible(); |
| } // release lock |
| |
| // Wake the poll loop because removing the connection may have changed the current |
| // synchronization state. |
| mLooper->wake(); |
| return OK; |
| } |
| |
| ssize_t InputDispatcher::getConnectionIndexLocked(const sp<InputChannel>& inputChannel) { |
| ssize_t connectionIndex = mConnectionsByReceiveFd.indexOfKey(inputChannel->getReceivePipeFd()); |
| if (connectionIndex >= 0) { |
| sp<Connection> connection = mConnectionsByReceiveFd.valueAt(connectionIndex); |
| if (connection->inputChannel.get() == inputChannel.get()) { |
| return connectionIndex; |
| } |
| } |
| |
| return -1; |
| } |
| |
| void InputDispatcher::activateConnectionLocked(Connection* connection) { |
| for (size_t i = 0; i < mActiveConnections.size(); i++) { |
| if (mActiveConnections.itemAt(i) == connection) { |
| return; |
| } |
| } |
| mActiveConnections.add(connection); |
| } |
| |
| void InputDispatcher::deactivateConnectionLocked(Connection* connection) { |
| for (size_t i = 0; i < mActiveConnections.size(); i++) { |
| if (mActiveConnections.itemAt(i) == connection) { |
| mActiveConnections.removeAt(i); |
| return; |
| } |
| } |
| } |
| |
| void InputDispatcher::onDispatchCycleStartedLocked( |
| nsecs_t currentTime, const sp<Connection>& connection) { |
| } |
| |
| void InputDispatcher::onDispatchCycleFinishedLocked( |
| nsecs_t currentTime, const sp<Connection>& connection, bool handled) { |
| CommandEntry* commandEntry = postCommandLocked( |
| & InputDispatcher::doDispatchCycleFinishedLockedInterruptible); |
| commandEntry->connection = connection; |
| commandEntry->handled = handled; |
| } |
| |
| void InputDispatcher::onDispatchCycleBrokenLocked( |
| nsecs_t currentTime, const sp<Connection>& connection) { |
| LOGE("channel '%s' ~ Channel is unrecoverably broken and will be disposed!", |
| connection->getInputChannelName()); |
| |
| CommandEntry* commandEntry = postCommandLocked( |
| & InputDispatcher::doNotifyInputChannelBrokenLockedInterruptible); |
| commandEntry->connection = connection; |
| } |
| |
| void InputDispatcher::onANRLocked( |
| nsecs_t currentTime, const sp<InputApplicationHandle>& applicationHandle, |
| const sp<InputWindowHandle>& windowHandle, |
| nsecs_t eventTime, nsecs_t waitStartTime) { |
| LOGI("Application is not responding: %s. " |
| "%01.1fms since event, %01.1fms since wait started", |
| getApplicationWindowLabelLocked(applicationHandle, windowHandle).string(), |
| (currentTime - eventTime) / 1000000.0, |
| (currentTime - waitStartTime) / 1000000.0); |
| |
| CommandEntry* commandEntry = postCommandLocked( |
| & InputDispatcher::doNotifyANRLockedInterruptible); |
| commandEntry->inputApplicationHandle = applicationHandle; |
| commandEntry->inputWindowHandle = windowHandle; |
| } |
| |
| void InputDispatcher::doNotifyConfigurationChangedInterruptible( |
| CommandEntry* commandEntry) { |
| mLock.unlock(); |
| |
| mPolicy->notifyConfigurationChanged(commandEntry->eventTime); |
| |
| mLock.lock(); |
| } |
| |
| void InputDispatcher::doNotifyInputChannelBrokenLockedInterruptible( |
| CommandEntry* commandEntry) { |
| sp<Connection> connection = commandEntry->connection; |
| |
| if (connection->status != Connection::STATUS_ZOMBIE) { |
| mLock.unlock(); |
| |
| mPolicy->notifyInputChannelBroken(connection->inputWindowHandle); |
| |
| mLock.lock(); |
| } |
| } |
| |
| void InputDispatcher::doNotifyANRLockedInterruptible( |
| CommandEntry* commandEntry) { |
| mLock.unlock(); |
| |
| nsecs_t newTimeout = mPolicy->notifyANR( |
| commandEntry->inputApplicationHandle, commandEntry->inputWindowHandle); |
| |
| mLock.lock(); |
| |
| resumeAfterTargetsNotReadyTimeoutLocked(newTimeout, |
| commandEntry->inputWindowHandle != NULL |
| ? commandEntry->inputWindowHandle->inputChannel : NULL); |
| } |
| |
| void InputDispatcher::doInterceptKeyBeforeDispatchingLockedInterruptible( |
| CommandEntry* commandEntry) { |
| KeyEntry* entry = commandEntry->keyEntry; |
| |
| KeyEvent event; |
| initializeKeyEvent(&event, entry); |
| |
| mLock.unlock(); |
| |
| bool consumed = mPolicy->interceptKeyBeforeDispatching(commandEntry->inputWindowHandle, |
| &event, entry->policyFlags); |
| |
| mLock.lock(); |
| |
| entry->interceptKeyResult = consumed |
| ? KeyEntry::INTERCEPT_KEY_RESULT_SKIP |
| : KeyEntry::INTERCEPT_KEY_RESULT_CONTINUE; |
| entry->release(); |
| } |
| |
| void InputDispatcher::doDispatchCycleFinishedLockedInterruptible( |
| CommandEntry* commandEntry) { |
| sp<Connection> connection = commandEntry->connection; |
| bool handled = commandEntry->handled; |
| |
| bool skipNext = false; |
| if (!connection->outboundQueue.isEmpty()) { |
| DispatchEntry* dispatchEntry = connection->outboundQueue.head; |
| if (dispatchEntry->inProgress) { |
| if (dispatchEntry->eventEntry->type == EventEntry::TYPE_KEY) { |
| KeyEntry* keyEntry = static_cast<KeyEntry*>(dispatchEntry->eventEntry); |
| skipNext = afterKeyEventLockedInterruptible(connection, |
| dispatchEntry, keyEntry, handled); |
| } else if (dispatchEntry->eventEntry->type == EventEntry::TYPE_MOTION) { |
| MotionEntry* motionEntry = static_cast<MotionEntry*>(dispatchEntry->eventEntry); |
| skipNext = afterMotionEventLockedInterruptible(connection, |
| dispatchEntry, motionEntry, handled); |
| } |
| } |
| } |
| |
| if (!skipNext) { |
| startNextDispatchCycleLocked(now(), connection); |
| } |
| } |
| |
| bool InputDispatcher::afterKeyEventLockedInterruptible(const sp<Connection>& connection, |
| DispatchEntry* dispatchEntry, KeyEntry* keyEntry, bool handled) { |
| if (!(keyEntry->flags & AKEY_EVENT_FLAG_FALLBACK)) { |
| // Get the fallback key state. |
| // Clear it out after dispatching the UP. |
| int32_t originalKeyCode = keyEntry->keyCode; |
| int32_t fallbackKeyCode = connection->inputState.getFallbackKey(originalKeyCode); |
| if (keyEntry->action == AKEY_EVENT_ACTION_UP) { |
| connection->inputState.removeFallbackKey(originalKeyCode); |
| } |
| |
| if (handled || !dispatchEntry->hasForegroundTarget()) { |
| // If the application handles the original key for which we previously |
| // generated a fallback or if the window is not a foreground window, |
| // then cancel the associated fallback key, if any. |
| if (fallbackKeyCode != -1) { |
| if (fallbackKeyCode != AKEYCODE_UNKNOWN) { |
| CancelationOptions options(CancelationOptions::CANCEL_FALLBACK_EVENTS, |
| "application handled the original non-fallback key " |
| "or is no longer a foreground target, " |
| "canceling previously dispatched fallback key"); |
| options.keyCode = fallbackKeyCode; |
| synthesizeCancelationEventsForConnectionLocked(connection, options); |
| } |
| connection->inputState.removeFallbackKey(originalKeyCode); |
| } |
| } else { |
| // If the application did not handle a non-fallback key, first check |
| // that we are in a good state to perform unhandled key event processing |
| // Then ask the policy what to do with it. |
| bool initialDown = keyEntry->action == AKEY_EVENT_ACTION_DOWN |
| && keyEntry->repeatCount == 0; |
| if (fallbackKeyCode == -1 && !initialDown) { |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| LOGD("Unhandled key event: Skipping unhandled key event processing " |
| "since this is not an initial down. " |
| "keyCode=%d, action=%d, repeatCount=%d", |
| originalKeyCode, keyEntry->action, keyEntry->repeatCount); |
| #endif |
| return false; |
| } |
| |
| // Dispatch the unhandled key to the policy. |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| LOGD("Unhandled key event: Asking policy to perform fallback action. " |
| "keyCode=%d, action=%d, repeatCount=%d", |
| keyEntry->keyCode, keyEntry->action, keyEntry->repeatCount); |
| #endif |
| KeyEvent event; |
| initializeKeyEvent(&event, keyEntry); |
| |
| mLock.unlock(); |
| |
| bool fallback = mPolicy->dispatchUnhandledKey(connection->inputWindowHandle, |
| &event, keyEntry->policyFlags, &event); |
| |
| mLock.lock(); |
| |
| if (connection->status != Connection::STATUS_NORMAL) { |
| connection->inputState.removeFallbackKey(originalKeyCode); |
| return true; // skip next cycle |
| } |
| |
| LOG_ASSERT(connection->outboundQueue.head == dispatchEntry); |
| |
| // Latch the fallback keycode for this key on an initial down. |
| // The fallback keycode cannot change at any other point in the lifecycle. |
| if (initialDown) { |
| if (fallback) { |
| fallbackKeyCode = event.getKeyCode(); |
| } else { |
| fallbackKeyCode = AKEYCODE_UNKNOWN; |
| } |
| connection->inputState.setFallbackKey(originalKeyCode, fallbackKeyCode); |
| } |
| |
| LOG_ASSERT(fallbackKeyCode != -1); |
| |
| // Cancel the fallback key if the policy decides not to send it anymore. |
| // We will continue to dispatch the key to the policy but we will no |
| // longer dispatch a fallback key to the application. |
| if (fallbackKeyCode != AKEYCODE_UNKNOWN |
| && (!fallback || fallbackKeyCode != event.getKeyCode())) { |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| if (fallback) { |
| LOGD("Unhandled key event: Policy requested to send key %d" |
| "as a fallback for %d, but on the DOWN it had requested " |
| "to send %d instead. Fallback canceled.", |
| event.getKeyCode(), originalKeyCode, fallbackKeyCode); |
| } else { |
| LOGD("Unhandled key event: Policy did not request fallback for %d," |
| "but on the DOWN it had requested to send %d. " |
| "Fallback canceled.", |
| originalKeyCode, fallbackKeyCode); |
| } |
| #endif |
| |
| CancelationOptions options(CancelationOptions::CANCEL_FALLBACK_EVENTS, |
| "canceling fallback, policy no longer desires it"); |
| options.keyCode = fallbackKeyCode; |
| synthesizeCancelationEventsForConnectionLocked(connection, options); |
| |
| fallback = false; |
| fallbackKeyCode = AKEYCODE_UNKNOWN; |
| if (keyEntry->action != AKEY_EVENT_ACTION_UP) { |
| connection->inputState.setFallbackKey(originalKeyCode, |
| fallbackKeyCode); |
| } |
| } |
| |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| { |
| String8 msg; |
| const KeyedVector<int32_t, int32_t>& fallbackKeys = |
| connection->inputState.getFallbackKeys(); |
| for (size_t i = 0; i < fallbackKeys.size(); i++) { |
| msg.appendFormat(", %d->%d", fallbackKeys.keyAt(i), |
| fallbackKeys.valueAt(i)); |
| } |
| LOGD("Unhandled key event: %d currently tracked fallback keys%s.", |
| fallbackKeys.size(), msg.string()); |
| } |
| #endif |
| |
| if (fallback) { |
| // Restart the dispatch cycle using the fallback key. |
| keyEntry->eventTime = event.getEventTime(); |
| keyEntry->deviceId = event.getDeviceId(); |
| keyEntry->source = event.getSource(); |
| keyEntry->flags = event.getFlags() | AKEY_EVENT_FLAG_FALLBACK; |
| keyEntry->keyCode = fallbackKeyCode; |
| keyEntry->scanCode = event.getScanCode(); |
| keyEntry->metaState = event.getMetaState(); |
| keyEntry->repeatCount = event.getRepeatCount(); |
| keyEntry->downTime = event.getDownTime(); |
| keyEntry->syntheticRepeat = false; |
| |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| LOGD("Unhandled key event: Dispatching fallback key. " |
| "originalKeyCode=%d, fallbackKeyCode=%d, fallbackMetaState=%08x", |
| originalKeyCode, fallbackKeyCode, keyEntry->metaState); |
| #endif |
| |
| dispatchEntry->inProgress = false; |
| startDispatchCycleLocked(now(), connection); |
| return true; // already started next cycle |
| } else { |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| LOGD("Unhandled key event: No fallback key."); |
| #endif |
| } |
| } |
| } |
| return false; |
| } |
| |
| bool InputDispatcher::afterMotionEventLockedInterruptible(const sp<Connection>& connection, |
| DispatchEntry* dispatchEntry, MotionEntry* motionEntry, bool handled) { |
| return false; |
| } |
| |
| void InputDispatcher::doPokeUserActivityLockedInterruptible(CommandEntry* commandEntry) { |
| mLock.unlock(); |
| |
| mPolicy->pokeUserActivity(commandEntry->eventTime, commandEntry->userActivityEventType); |
| |
| mLock.lock(); |
| } |
| |
| void InputDispatcher::initializeKeyEvent(KeyEvent* event, const KeyEntry* entry) { |
| event->initialize(entry->deviceId, entry->source, entry->action, entry->flags, |
| entry->keyCode, entry->scanCode, entry->metaState, entry->repeatCount, |
| entry->downTime, entry->eventTime); |
| } |
| |
| void InputDispatcher::updateDispatchStatisticsLocked(nsecs_t currentTime, const EventEntry* entry, |
| int32_t injectionResult, nsecs_t timeSpentWaitingForApplication) { |
| // TODO Write some statistics about how long we spend waiting. |
| } |
| |
| void InputDispatcher::dump(String8& dump) { |
| dump.append("Input Dispatcher State:\n"); |
| dumpDispatchStateLocked(dump); |
| |
| dump.append(INDENT "Configuration:\n"); |
| dump.appendFormat(INDENT2 "MaxEventsPerSecond: %d\n", mConfig.maxEventsPerSecond); |
| dump.appendFormat(INDENT2 "KeyRepeatDelay: %0.1fms\n", mConfig.keyRepeatDelay * 0.000001f); |
| dump.appendFormat(INDENT2 "KeyRepeatTimeout: %0.1fms\n", mConfig.keyRepeatTimeout * 0.000001f); |
| } |
| |
| |
| // --- InputDispatcher::Queue --- |
| |
| template <typename T> |
| uint32_t InputDispatcher::Queue<T>::count() const { |
| uint32_t result = 0; |
| for (const T* entry = head; entry; entry = entry->next) { |
| result += 1; |
| } |
| return result; |
| } |
| |
| |
| // --- InputDispatcher::InjectionState --- |
| |
| InputDispatcher::InjectionState::InjectionState(int32_t injectorPid, int32_t injectorUid) : |
| refCount(1), |
| injectorPid(injectorPid), injectorUid(injectorUid), |
| injectionResult(INPUT_EVENT_INJECTION_PENDING), injectionIsAsync(false), |
| pendingForegroundDispatches(0) { |
| } |
| |
| InputDispatcher::InjectionState::~InjectionState() { |
| } |
| |
| void InputDispatcher::InjectionState::release() { |
| refCount -= 1; |
| if (refCount == 0) { |
| delete this; |
| } else { |
| LOG_ASSERT(refCount > 0); |
| } |
| } |
| |
| |
| // --- InputDispatcher::EventEntry --- |
| |
| InputDispatcher::EventEntry::EventEntry(int32_t type, nsecs_t eventTime, uint32_t policyFlags) : |
| refCount(1), type(type), eventTime(eventTime), policyFlags(policyFlags), |
| injectionState(NULL), dispatchInProgress(false) { |
| } |
| |
| InputDispatcher::EventEntry::~EventEntry() { |
| releaseInjectionState(); |
| } |
| |
| void InputDispatcher::EventEntry::release() { |
| refCount -= 1; |
| if (refCount == 0) { |
| delete this; |
| } else { |
| LOG_ASSERT(refCount > 0); |
| } |
| } |
| |
| void InputDispatcher::EventEntry::releaseInjectionState() { |
| if (injectionState) { |
| injectionState->release(); |
| injectionState = NULL; |
| } |
| } |
| |
| |
| // --- InputDispatcher::ConfigurationChangedEntry --- |
| |
| InputDispatcher::ConfigurationChangedEntry::ConfigurationChangedEntry(nsecs_t eventTime) : |
| EventEntry(TYPE_CONFIGURATION_CHANGED, eventTime, 0) { |
| } |
| |
| InputDispatcher::ConfigurationChangedEntry::~ConfigurationChangedEntry() { |
| } |
| |
| |
| // --- InputDispatcher::KeyEntry --- |
| |
| InputDispatcher::KeyEntry::KeyEntry(nsecs_t eventTime, |
| int32_t deviceId, uint32_t source, uint32_t policyFlags, int32_t action, |
| int32_t flags, int32_t keyCode, int32_t scanCode, int32_t metaState, |
| int32_t repeatCount, nsecs_t downTime) : |
| EventEntry(TYPE_KEY, eventTime, policyFlags), |
| deviceId(deviceId), source(source), action(action), flags(flags), |
| keyCode(keyCode), scanCode(scanCode), metaState(metaState), |
| repeatCount(repeatCount), downTime(downTime), |
| syntheticRepeat(false), interceptKeyResult(KeyEntry::INTERCEPT_KEY_RESULT_UNKNOWN) { |
| } |
| |
| InputDispatcher::KeyEntry::~KeyEntry() { |
| } |
| |
| void InputDispatcher::KeyEntry::recycle() { |
| releaseInjectionState(); |
| |
| dispatchInProgress = false; |
| syntheticRepeat = false; |
| interceptKeyResult = KeyEntry::INTERCEPT_KEY_RESULT_UNKNOWN; |
| } |
| |
| |
| // --- InputDispatcher::MotionSample --- |
| |
| InputDispatcher::MotionSample::MotionSample(nsecs_t eventTime, |
| const PointerCoords* pointerCoords, uint32_t pointerCount) : |
| next(NULL), eventTime(eventTime), eventTimeBeforeCoalescing(eventTime) { |
| for (uint32_t i = 0; i < pointerCount; i++) { |
| this->pointerCoords[i].copyFrom(pointerCoords[i]); |
| } |
| } |
| |
| |
| // --- InputDispatcher::MotionEntry --- |
| |
| InputDispatcher::MotionEntry::MotionEntry(nsecs_t eventTime, |
| int32_t deviceId, uint32_t source, uint32_t policyFlags, int32_t action, int32_t flags, |
| int32_t metaState, int32_t buttonState, |
| int32_t edgeFlags, float xPrecision, float yPrecision, |
| nsecs_t downTime, uint32_t pointerCount, |
| const PointerProperties* pointerProperties, const PointerCoords* pointerCoords) : |
| EventEntry(TYPE_MOTION, eventTime, policyFlags), |
| deviceId(deviceId), source(source), action(action), flags(flags), |
| metaState(metaState), buttonState(buttonState), edgeFlags(edgeFlags), |
| xPrecision(xPrecision), yPrecision(yPrecision), |
| downTime(downTime), pointerCount(pointerCount), |
| firstSample(eventTime, pointerCoords, pointerCount), |
| lastSample(&firstSample) { |
| for (uint32_t i = 0; i < pointerCount; i++) { |
| this->pointerProperties[i].copyFrom(pointerProperties[i]); |
| } |
| } |
| |
| InputDispatcher::MotionEntry::~MotionEntry() { |
| for (MotionSample* sample = firstSample.next; sample != NULL; ) { |
| MotionSample* next = sample->next; |
| delete sample; |
| sample = next; |
| } |
| } |
| |
| uint32_t InputDispatcher::MotionEntry::countSamples() const { |
| uint32_t count = 1; |
| for (MotionSample* sample = firstSample.next; sample != NULL; sample = sample->next) { |
| count += 1; |
| } |
| return count; |
| } |
| |
| bool InputDispatcher::MotionEntry::canAppendSamples(int32_t action, uint32_t pointerCount, |
| const PointerProperties* pointerProperties) const { |
| if (this->action != action |
| || this->pointerCount != pointerCount |
| || this->isInjected()) { |
| return false; |
| } |
| for (uint32_t i = 0; i < pointerCount; i++) { |
| if (this->pointerProperties[i] != pointerProperties[i]) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| void InputDispatcher::MotionEntry::appendSample( |
| nsecs_t eventTime, const PointerCoords* pointerCoords) { |
| MotionSample* sample = new MotionSample(eventTime, pointerCoords, pointerCount); |
| |
| lastSample->next = sample; |
| lastSample = sample; |
| } |
| |
| |
| // --- InputDispatcher::DispatchEntry --- |
| |
| InputDispatcher::DispatchEntry::DispatchEntry(EventEntry* eventEntry, |
| int32_t targetFlags, float xOffset, float yOffset, float scaleFactor) : |
| eventEntry(eventEntry), targetFlags(targetFlags), |
| xOffset(xOffset), yOffset(yOffset), scaleFactor(scaleFactor), |
| inProgress(false), |
| resolvedAction(0), resolvedFlags(0), |
| headMotionSample(NULL), tailMotionSample(NULL) { |
| eventEntry->refCount += 1; |
| } |
| |
| InputDispatcher::DispatchEntry::~DispatchEntry() { |
| eventEntry->release(); |
| } |
| |
| |
| // --- InputDispatcher::InputState --- |
| |
| InputDispatcher::InputState::InputState() { |
| } |
| |
| InputDispatcher::InputState::~InputState() { |
| } |
| |
| bool InputDispatcher::InputState::isNeutral() const { |
| return mKeyMementos.isEmpty() && mMotionMementos.isEmpty(); |
| } |
| |
| bool InputDispatcher::InputState::isHovering(int32_t deviceId, uint32_t source) const { |
| for (size_t i = 0; i < mMotionMementos.size(); i++) { |
| const MotionMemento& memento = mMotionMementos.itemAt(i); |
| if (memento.deviceId == deviceId |
| && memento.source == source |
| && memento.hovering) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool InputDispatcher::InputState::trackKey(const KeyEntry* entry, |
| int32_t action, int32_t flags) { |
| switch (action) { |
| case AKEY_EVENT_ACTION_UP: { |
| if (entry->flags & AKEY_EVENT_FLAG_FALLBACK) { |
| for (size_t i = 0; i < mFallbackKeys.size(); ) { |
| if (mFallbackKeys.valueAt(i) == entry->keyCode) { |
| mFallbackKeys.removeItemsAt(i); |
| } else { |
| i += 1; |
| } |
| } |
| } |
| ssize_t index = findKeyMemento(entry); |
| if (index >= 0) { |
| mKeyMementos.removeAt(index); |
| return true; |
| } |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| LOGD("Dropping inconsistent key up event: deviceId=%d, source=%08x, " |
| "keyCode=%d, scanCode=%d", |
| entry->deviceId, entry->source, entry->keyCode, entry->scanCode); |
| #endif |
| return false; |
| } |
| |
| case AKEY_EVENT_ACTION_DOWN: { |
| ssize_t index = findKeyMemento(entry); |
| if (index >= 0) { |
| mKeyMementos.removeAt(index); |
| } |
| addKeyMemento(entry, flags); |
| return true; |
| } |
| |
| default: |
| return true; |
| } |
| } |
| |
| bool InputDispatcher::InputState::trackMotion(const MotionEntry* entry, |
| int32_t action, int32_t flags) { |
| int32_t actionMasked = action & AMOTION_EVENT_ACTION_MASK; |
| switch (actionMasked) { |
| case AMOTION_EVENT_ACTION_UP: |
| case AMOTION_EVENT_ACTION_CANCEL: { |
| ssize_t index = findMotionMemento(entry, false /*hovering*/); |
| if (index >= 0) { |
| mMotionMementos.removeAt(index); |
| return true; |
| } |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| LOGD("Dropping inconsistent motion up or cancel event: deviceId=%d, source=%08x, " |
| "actionMasked=%d", |
| entry->deviceId, entry->source, actionMasked); |
| #endif |
| return false; |
| } |
| |
| case AMOTION_EVENT_ACTION_DOWN: { |
| ssize_t index = findMotionMemento(entry, false /*hovering*/); |
| if (index >= 0) { |
| mMotionMementos.removeAt(index); |
| } |
| addMotionMemento(entry, flags, false /*hovering*/); |
| return true; |
| } |
| |
| case AMOTION_EVENT_ACTION_POINTER_UP: |
| case AMOTION_EVENT_ACTION_POINTER_DOWN: |
| case AMOTION_EVENT_ACTION_MOVE: { |
| ssize_t index = findMotionMemento(entry, false /*hovering*/); |
| if (index >= 0) { |
| MotionMemento& memento = mMotionMementos.editItemAt(index); |
| memento.setPointers(entry); |
| return true; |
| } |
| if (actionMasked == AMOTION_EVENT_ACTION_MOVE |
| && (entry->source & (AINPUT_SOURCE_CLASS_JOYSTICK |
| | AINPUT_SOURCE_CLASS_NAVIGATION))) { |
| // Joysticks and trackballs can send MOVE events without corresponding DOWN or UP. |
| return true; |
| } |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| LOGD("Dropping inconsistent motion pointer up/down or move event: " |
| "deviceId=%d, source=%08x, actionMasked=%d", |
| entry->deviceId, entry->source, actionMasked); |
| #endif |
| return false; |
| } |
| |
| case AMOTION_EVENT_ACTION_HOVER_EXIT: { |
| ssize_t index = findMotionMemento(entry, true /*hovering*/); |
| if (index >= 0) { |
| mMotionMementos.removeAt(index); |
| return true; |
| } |
| #if DEBUG_OUTBOUND_EVENT_DETAILS |
| LOGD("Dropping inconsistent motion hover exit event: deviceId=%d, source=%08x", |
| entry->deviceId, entry->source); |
| #endif |
| return false; |
| } |
| |
| case AMOTION_EVENT_ACTION_HOVER_ENTER: |
| case AMOTION_EVENT_ACTION_HOVER_MOVE: { |
| ssize_t index = findMotionMemento(entry, true /*hovering*/); |
| if (index >= 0) { |
| mMotionMementos.removeAt(index); |
| } |
| addMotionMemento(entry, flags, true /*hovering*/); |
| return true; |
| } |
| |
| default: |
| return true; |
| } |
| } |
| |
| ssize_t InputDispatcher::InputState::findKeyMemento(const KeyEntry* entry) const { |
| for (size_t i = 0; i < mKeyMementos.size(); i++) { |
| const KeyMemento& memento = mKeyMementos.itemAt(i); |
| if (memento.deviceId == entry->deviceId |
| && memento.source == entry->source |
| && memento.keyCode == entry->keyCode |
| && memento.scanCode == entry->scanCode) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| ssize_t InputDispatcher::InputState::findMotionMemento(const MotionEntry* entry, |
| bool hovering) const { |
| for (size_t i = 0; i < mMotionMementos.size(); i++) { |
| const MotionMemento& memento = mMotionMementos.itemAt(i); |
| if (memento.deviceId == entry->deviceId |
| && memento.source == entry->source |
| && memento.hovering == hovering) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| void InputDispatcher::InputState::addKeyMemento(const KeyEntry* entry, int32_t flags) { |
| mKeyMementos.push(); |
| KeyMemento& memento = mKeyMementos.editTop(); |
| memento.deviceId = entry->deviceId; |
| memento.source = entry->source; |
| memento.keyCode = entry->keyCode; |
| memento.scanCode = entry->scanCode; |
| memento.flags = flags; |
| memento.downTime = entry->downTime; |
| } |
| |
| void InputDispatcher::InputState::addMotionMemento(const MotionEntry* entry, |
| int32_t flags, bool hovering) { |
| mMotionMementos.push(); |
| MotionMemento& memento = mMotionMementos.editTop(); |
| memento.deviceId = entry->deviceId; |
| memento.source = entry->source; |
| memento.flags = flags; |
| memento.xPrecision = entry->xPrecision; |
| memento.yPrecision = entry->yPrecision; |
| memento.downTime = entry->downTime; |
| memento.setPointers(entry); |
| memento.hovering = hovering; |
| } |
| |
| void InputDispatcher::InputState::MotionMemento::setPointers(const MotionEntry* entry) { |
| pointerCount = entry->pointerCount; |
| for (uint32_t i = 0; i < entry->pointerCount; i++) { |
| pointerProperties[i].copyFrom(entry->pointerProperties[i]); |
| pointerCoords[i].copyFrom(entry->lastSample->pointerCoords[i]); |
| } |
| } |
| |
| void InputDispatcher::InputState::synthesizeCancelationEvents(nsecs_t currentTime, |
| Vector<EventEntry*>& outEvents, const CancelationOptions& options) { |
| for (size_t i = 0; i < mKeyMementos.size(); i++) { |
| const KeyMemento& memento = mKeyMementos.itemAt(i); |
| if (shouldCancelKey(memento, options)) { |
| outEvents.push(new KeyEntry(currentTime, |
| memento.deviceId, memento.source, 0, |
| AKEY_EVENT_ACTION_UP, memento.flags | AKEY_EVENT_FLAG_CANCELED, |
| memento.keyCode, memento.scanCode, 0, 0, memento.downTime)); |
| } |
| } |
| |
| for (size_t i = 0; i < mMotionMementos.size(); i++) { |
| const MotionMemento& memento = mMotionMementos.itemAt(i); |
| if (shouldCancelMotion(memento, options)) { |
| outEvents.push(new MotionEntry(currentTime, |
| memento.deviceId, memento.source, 0, |
| memento.hovering |
| ? AMOTION_EVENT_ACTION_HOVER_EXIT |
| : AMOTION_EVENT_ACTION_CANCEL, |
| memento.flags, 0, 0, 0, |
| memento.xPrecision, memento.yPrecision, memento.downTime, |
| memento.pointerCount, memento.pointerProperties, memento.pointerCoords)); |
| } |
| } |
| } |
| |
| void InputDispatcher::InputState::clear() { |
| mKeyMementos.clear(); |
| mMotionMementos.clear(); |
| mFallbackKeys.clear(); |
| } |
| |
| void InputDispatcher::InputState::copyPointerStateTo(InputState& other) const { |
| for (size_t i = 0; i < mMotionMementos.size(); i++) { |
| const MotionMemento& memento = mMotionMementos.itemAt(i); |
| if (memento.source & AINPUT_SOURCE_CLASS_POINTER) { |
| for (size_t j = 0; j < other.mMotionMementos.size(); ) { |
| const MotionMemento& otherMemento = other.mMotionMementos.itemAt(j); |
| if (memento.deviceId == otherMemento.deviceId |
| && memento.source == otherMemento.source) { |
| other.mMotionMementos.removeAt(j); |
| } else { |
| j += 1; |
| } |
| } |
| other.mMotionMementos.push(memento); |
| } |
| } |
| } |
| |
| int32_t InputDispatcher::InputState::getFallbackKey(int32_t originalKeyCode) { |
| ssize_t index = mFallbackKeys.indexOfKey(originalKeyCode); |
| return index >= 0 ? mFallbackKeys.valueAt(index) : -1; |
| } |
| |
| void InputDispatcher::InputState::setFallbackKey(int32_t originalKeyCode, |
| int32_t fallbackKeyCode) { |
| ssize_t index = mFallbackKeys.indexOfKey(originalKeyCode); |
| if (index >= 0) { |
| mFallbackKeys.replaceValueAt(index, fallbackKeyCode); |
| } else { |
| mFallbackKeys.add(originalKeyCode, fallbackKeyCode); |
| } |
| } |
| |
| void InputDispatcher::InputState::removeFallbackKey(int32_t originalKeyCode) { |
| mFallbackKeys.removeItem(originalKeyCode); |
| } |
| |
| bool InputDispatcher::InputState::shouldCancelKey(const KeyMemento& memento, |
| const CancelationOptions& options) { |
| if (options.keyCode != -1 && memento.keyCode != options.keyCode) { |
| return false; |
| } |
| |
| switch (options.mode) { |
| case CancelationOptions::CANCEL_ALL_EVENTS: |
| case CancelationOptions::CANCEL_NON_POINTER_EVENTS: |
| return true; |
| case CancelationOptions::CANCEL_FALLBACK_EVENTS: |
| return memento.flags & AKEY_EVENT_FLAG_FALLBACK; |
| default: |
| return false; |
| } |
| } |
| |
| bool InputDispatcher::InputState::shouldCancelMotion(const MotionMemento& memento, |
| const CancelationOptions& options) { |
| switch (options.mode) { |
| case CancelationOptions::CANCEL_ALL_EVENTS: |
| return true; |
| case CancelationOptions::CANCEL_POINTER_EVENTS: |
| return memento.source & AINPUT_SOURCE_CLASS_POINTER; |
| case CancelationOptions::CANCEL_NON_POINTER_EVENTS: |
| return !(memento.source & AINPUT_SOURCE_CLASS_POINTER); |
| default: |
| return false; |
| } |
| } |
| |
| |
| // --- InputDispatcher::Connection --- |
| |
| InputDispatcher::Connection::Connection(const sp<InputChannel>& inputChannel, |
| const sp<InputWindowHandle>& inputWindowHandle) : |
| status(STATUS_NORMAL), inputChannel(inputChannel), inputWindowHandle(inputWindowHandle), |
| inputPublisher(inputChannel), |
| lastEventTime(LONG_LONG_MAX), lastDispatchTime(LONG_LONG_MAX) { |
| } |
| |
| InputDispatcher::Connection::~Connection() { |
| } |
| |
| status_t InputDispatcher::Connection::initialize() { |
| return inputPublisher.initialize(); |
| } |
| |
| const char* InputDispatcher::Connection::getStatusLabel() const { |
| switch (status) { |
| case STATUS_NORMAL: |
| return "NORMAL"; |
| |
| case STATUS_BROKEN: |
| return "BROKEN"; |
| |
| case STATUS_ZOMBIE: |
| return "ZOMBIE"; |
| |
| default: |
| return "UNKNOWN"; |
| } |
| } |
| |
| InputDispatcher::DispatchEntry* InputDispatcher::Connection::findQueuedDispatchEntryForEvent( |
| const EventEntry* eventEntry) const { |
| for (DispatchEntry* dispatchEntry = outboundQueue.tail; dispatchEntry; |
| dispatchEntry = dispatchEntry->prev) { |
| if (dispatchEntry->eventEntry == eventEntry) { |
| return dispatchEntry; |
| } |
| } |
| return NULL; |
| } |
| |
| |
| // --- InputDispatcher::CommandEntry --- |
| |
| InputDispatcher::CommandEntry::CommandEntry(Command command) : |
| command(command), eventTime(0), keyEntry(NULL), userActivityEventType(0), handled(false) { |
| } |
| |
| InputDispatcher::CommandEntry::~CommandEntry() { |
| } |
| |
| |
| // --- InputDispatcher::TouchState --- |
| |
| InputDispatcher::TouchState::TouchState() : |
| down(false), split(false), deviceId(-1), source(0) { |
| } |
| |
| InputDispatcher::TouchState::~TouchState() { |
| } |
| |
| void InputDispatcher::TouchState::reset() { |
| down = false; |
| split = false; |
| deviceId = -1; |
| source = 0; |
| windows.clear(); |
| } |
| |
| void InputDispatcher::TouchState::copyFrom(const TouchState& other) { |
| down = other.down; |
| split = other.split; |
| deviceId = other.deviceId; |
| source = other.source; |
| windows = other.windows; |
| } |
| |
| void InputDispatcher::TouchState::addOrUpdateWindow(const sp<InputWindowHandle>& windowHandle, |
| int32_t targetFlags, BitSet32 pointerIds) { |
| if (targetFlags & InputTarget::FLAG_SPLIT) { |
| split = true; |
| } |
| |
| for (size_t i = 0; i < windows.size(); i++) { |
| TouchedWindow& touchedWindow = windows.editItemAt(i); |
| if (touchedWindow.windowHandle == windowHandle) { |
| touchedWindow.targetFlags |= targetFlags; |
| if (targetFlags & InputTarget::FLAG_DISPATCH_AS_SLIPPERY_EXIT) { |
| touchedWindow.targetFlags &= ~InputTarget::FLAG_DISPATCH_AS_IS; |
| } |
| touchedWindow.pointerIds.value |= pointerIds.value; |
| return; |
| } |
| } |
| |
| windows.push(); |
| |
| TouchedWindow& touchedWindow = windows.editTop(); |
| touchedWindow.windowHandle = windowHandle; |
| touchedWindow.targetFlags = targetFlags; |
| touchedWindow.pointerIds = pointerIds; |
| } |
| |
| void InputDispatcher::TouchState::filterNonAsIsTouchWindows() { |
| for (size_t i = 0 ; i < windows.size(); ) { |
| TouchedWindow& window = windows.editItemAt(i); |
| if (window.targetFlags & (InputTarget::FLAG_DISPATCH_AS_IS |
| | InputTarget::FLAG_DISPATCH_AS_SLIPPERY_ENTER)) { |
| window.targetFlags &= ~InputTarget::FLAG_DISPATCH_MASK; |
| window.targetFlags |= InputTarget::FLAG_DISPATCH_AS_IS; |
| i += 1; |
| } else { |
| windows.removeAt(i); |
| } |
| } |
| } |
| |
| sp<InputWindowHandle> InputDispatcher::TouchState::getFirstForegroundWindowHandle() const { |
| for (size_t i = 0; i < windows.size(); i++) { |
| const TouchedWindow& window = windows.itemAt(i); |
| if (window.targetFlags & InputTarget::FLAG_FOREGROUND) { |
| return window.windowHandle; |
| } |
| } |
| return NULL; |
| } |
| |
| bool InputDispatcher::TouchState::isSlippery() const { |
| // Must have exactly one foreground window. |
| bool haveSlipperyForegroundWindow = false; |
| for (size_t i = 0; i < windows.size(); i++) { |
| const TouchedWindow& window = windows.itemAt(i); |
| if (window.targetFlags & InputTarget::FLAG_FOREGROUND) { |
| if (haveSlipperyForegroundWindow || !(window.windowHandle->layoutParamsFlags |
| & InputWindowHandle::FLAG_SLIPPERY)) { |
| return false; |
| } |
| haveSlipperyForegroundWindow = true; |
| } |
| } |
| return haveSlipperyForegroundWindow; |
| } |
| |
| |
| // --- InputDispatcherThread --- |
| |
| InputDispatcherThread::InputDispatcherThread(const sp<InputDispatcherInterface>& dispatcher) : |
| Thread(/*canCallJava*/ true), mDispatcher(dispatcher) { |
| } |
| |
| InputDispatcherThread::~InputDispatcherThread() { |
| } |
| |
| bool InputDispatcherThread::threadLoop() { |
| mDispatcher->dispatchOnce(); |
| return true; |
| } |
| |
| } // namespace android |