void InputPublisherAndConsumerTest::PublishAndConsumeKeyEvent() {
status_t status;
const uint32_t seq = 15;
const int32_t deviceId = 1;
const int32_t source = AINPUT_SOURCE_KEYBOARD;
const int32_t action = AKEY_EVENT_ACTION_DOWN;
const int32_t flags = AKEY_EVENT_FLAG_FROM_SYSTEM;
const int32_t keyCode = AKEYCODE_ENTER;
const int32_t scanCode = 13;
const int32_t metaState = AMETA_ALT_LEFT_ON | AMETA_ALT_ON;
const int32_t repeatCount = 1;
const nsecs_t downTime = 3;
const nsecs_t eventTime = 4;
status = mPublisher->publishKeyEvent(seq, deviceId, source, action, flags,
keyCode, scanCode, metaState, repeatCount, downTime, eventTime);
ASSERT_EQ(OK, status)
<< "publisher publishKeyEvent should return OK";
uint32_t consumeSeq;
InputEvent* event;
status = mConsumer->consume(&mEventFactory, true /*consumeBatches*/, -1, &consumeSeq, &event);
ASSERT_EQ(OK, status)
<< "consumer consume should return OK";
ASSERT_TRUE(event != NULL)
<< "consumer should have returned non-NULL event";
ASSERT_EQ(AINPUT_EVENT_TYPE_KEY, event->getType())
<< "consumer should have returned a key event";
KeyEvent* keyEvent = static_cast<KeyEvent*>(event);
EXPECT_EQ(seq, consumeSeq);
EXPECT_EQ(deviceId, keyEvent->getDeviceId());
EXPECT_EQ(source, keyEvent->getSource());
EXPECT_EQ(action, keyEvent->getAction());
EXPECT_EQ(flags, keyEvent->getFlags());
EXPECT_EQ(keyCode, keyEvent->getKeyCode());
EXPECT_EQ(scanCode, keyEvent->getScanCode());
EXPECT_EQ(metaState, keyEvent->getMetaState());
EXPECT_EQ(repeatCount, keyEvent->getRepeatCount());
EXPECT_EQ(downTime, keyEvent->getDownTime());
EXPECT_EQ(eventTime, keyEvent->getEventTime());
status = mConsumer->sendFinishedSignal(seq, true);
ASSERT_EQ(OK, status)
<< "consumer sendFinishedSignal should return OK";
uint32_t finishedSeq = 0;
bool handled = false;
status = mPublisher->receiveFinishedSignal(&finishedSeq, &handled);
ASSERT_EQ(OK, status)
<< "publisher receiveFinishedSignal should return OK";
ASSERT_EQ(seq, finishedSeq)
<< "publisher receiveFinishedSignal should have returned the original sequence number";
ASSERT_TRUE(handled)
<< "publisher receiveFinishedSignal should have set handled to consumer's reply";
}
status_t NativeInputEventReceiver::consumeEvents(JNIEnv* env,
bool consumeBatches, nsecs_t frameTime, bool* outConsumedBatch) {
if (kDebugDispatchCycle) {
ALOGD("channel '%s' ~ Consuming input events, consumeBatches=%s, frameTime=%lld.",
getInputChannelName(), consumeBatches ? "true" : "false", (long long)frameTime);
}
if (consumeBatches) {
mBatchedInputEventPending = false;
}
if (outConsumedBatch) {
*outConsumedBatch = false;
}
ScopedLocalRef<jobject> receiverObj(env, NULL);
bool skipCallbacks = false;
for (;;) {
uint32_t seq;
InputEvent* inputEvent;
status_t status = mInputConsumer.consume(&mInputEventFactory,
consumeBatches, frameTime, &seq, &inputEvent);
if (status) {
if (status == WOULD_BLOCK) {
if (!skipCallbacks && !mBatchedInputEventPending
&& mInputConsumer.hasPendingBatch()) {
// There is a pending batch. Come back later.
if (!receiverObj.get()) {
receiverObj.reset(jniGetReferent(env, mReceiverWeakGlobal));
if (!receiverObj.get()) {
ALOGW("channel '%s' ~ Receiver object was finalized "
"without being disposed.", getInputChannelName());
return DEAD_OBJECT;
}
}
mBatchedInputEventPending = true;
if (kDebugDispatchCycle) {
ALOGD("channel '%s' ~ Dispatching batched input event pending notification.",
getInputChannelName());
}
env->CallVoidMethod(receiverObj.get(),
gInputEventReceiverClassInfo.dispatchBatchedInputEventPending);
if (env->ExceptionCheck()) {
ALOGE("Exception dispatching batched input events.");
mBatchedInputEventPending = false; // try again later
}
}
return OK;
}
ALOGE("channel '%s' ~ Failed to consume input event. status=%d",
getInputChannelName(), status);
return status;
}
assert(inputEvent);
if (!skipCallbacks) {
if (!receiverObj.get()) {
receiverObj.reset(jniGetReferent(env, mReceiverWeakGlobal));
if (!receiverObj.get()) {
ALOGW("channel '%s' ~ Receiver object was finalized "
"without being disposed.", getInputChannelName());
return DEAD_OBJECT;
}
}
jobject inputEventObj;
switch (inputEvent->getType()) {
case AINPUT_EVENT_TYPE_KEY:
if (kDebugDispatchCycle) {
ALOGD("channel '%s' ~ Received key event.", getInputChannelName());
}
inputEventObj = android_view_KeyEvent_fromNative(env,
static_cast<KeyEvent*>(inputEvent));
break;
case AINPUT_EVENT_TYPE_MOTION: {
if (kDebugDispatchCycle) {
ALOGD("channel '%s' ~ Received motion event.", getInputChannelName());
}
MotionEvent* motionEvent = static_cast<MotionEvent*>(inputEvent);
if ((motionEvent->getAction() & AMOTION_EVENT_ACTION_MOVE) && outConsumedBatch) {
*outConsumedBatch = true;
}
inputEventObj = android_view_MotionEvent_obtainAsCopy(env, motionEvent);
break;
}
default:
assert(false); // InputConsumer should prevent this from ever happening
inputEventObj = NULL;
}
if (inputEventObj) {
if (kDebugDispatchCycle) {
ALOGD("channel '%s' ~ Dispatching input event.", getInputChannelName());
}
env->CallVoidMethod(receiverObj.get(),
gInputEventReceiverClassInfo.dispatchInputEvent, seq, inputEventObj);
if (env->ExceptionCheck()) {
ALOGE("Exception dispatching input event.");
skipCallbacks = true;
}
env->DeleteLocalRef(inputEventObj);
} else {
ALOGW("channel '%s' ~ Failed to obtain event object.", getInputChannelName());
skipCallbacks = true;
}
}
if (skipCallbacks) {
mInputConsumer.sendFinishedSignal(seq, false);
}
}
}
void InputPublisherAndConsumerTest::PublishAndConsumeKeyEvent() {
status_t status;
const int32_t deviceId = 1;
const int32_t source = AINPUT_SOURCE_KEYBOARD;
const int32_t action = AKEY_EVENT_ACTION_DOWN;
const int32_t flags = AKEY_EVENT_FLAG_FROM_SYSTEM;
const int32_t keyCode = AKEYCODE_ENTER;
const int32_t scanCode = 13;
const int32_t metaState = AMETA_ALT_LEFT_ON | AMETA_ALT_ON;
const int32_t repeatCount = 1;
const nsecs_t downTime = 3;
const nsecs_t eventTime = 4;
status = mPublisher->publishKeyEvent(deviceId, source, action, flags,
keyCode, scanCode, metaState, repeatCount, downTime, eventTime);
ASSERT_EQ(OK, status)
<< "publisher publishKeyEvent should return OK";
status = mPublisher->sendDispatchSignal();
ASSERT_EQ(OK, status)
<< "publisher sendDispatchSignal should return OK";
status = mConsumer->receiveDispatchSignal();
ASSERT_EQ(OK, status)
<< "consumer receiveDispatchSignal should return OK";
InputEvent* event;
status = mConsumer->consume(& mEventFactory, & event);
ASSERT_EQ(OK, status)
<< "consumer consume should return OK";
ASSERT_TRUE(event != NULL)
<< "consumer should have returned non-NULL event";
ASSERT_EQ(AINPUT_EVENT_TYPE_KEY, event->getType())
<< "consumer should have returned a key event";
KeyEvent* keyEvent = static_cast<KeyEvent*>(event);
EXPECT_EQ(deviceId, keyEvent->getDeviceId());
EXPECT_EQ(source, keyEvent->getSource());
EXPECT_EQ(action, keyEvent->getAction());
EXPECT_EQ(flags, keyEvent->getFlags());
EXPECT_EQ(keyCode, keyEvent->getKeyCode());
EXPECT_EQ(scanCode, keyEvent->getScanCode());
EXPECT_EQ(metaState, keyEvent->getMetaState());
EXPECT_EQ(repeatCount, keyEvent->getRepeatCount());
EXPECT_EQ(downTime, keyEvent->getDownTime());
EXPECT_EQ(eventTime, keyEvent->getEventTime());
status = mConsumer->sendFinishedSignal();
ASSERT_EQ(OK, status)
<< "consumer sendFinishedSignal should return OK";
status = mPublisher->receiveFinishedSignal();
ASSERT_EQ(OK, status)
<< "publisher receiveFinishedSignal should return OK";
status = mPublisher->reset();
ASSERT_EQ(OK, status)
<< "publisher reset should return OK";
}
void InputPublisherAndConsumerTest::PublishAndConsumeMotionEvent(
size_t samplesToAppendBeforeDispatch, size_t samplesToAppendAfterDispatch) {
status_t status;
const int32_t deviceId = 1;
const int32_t source = AINPUT_SOURCE_TOUCHSCREEN;
const int32_t action = AMOTION_EVENT_ACTION_MOVE;
const int32_t flags = AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED;
const int32_t edgeFlags = AMOTION_EVENT_EDGE_FLAG_TOP;
const int32_t metaState = AMETA_ALT_LEFT_ON | AMETA_ALT_ON;
const float xOffset = -10;
const float yOffset = -20;
const float xPrecision = 0.25;
const float yPrecision = 0.5;
const nsecs_t downTime = 3;
const size_t pointerCount = 3;
const int32_t pointerIds[pointerCount] = { 2, 0, 1 };
Vector<nsecs_t> sampleEventTimes;
Vector<PointerCoords> samplePointerCoords;
for (size_t i = 0; i <= samplesToAppendAfterDispatch + samplesToAppendBeforeDispatch; i++) {
sampleEventTimes.push(i + 10);
for (size_t j = 0; j < pointerCount; j++) {
samplePointerCoords.push();
samplePointerCoords.editTop().x = 100 * i + j;
samplePointerCoords.editTop().y = 200 * i + j;
samplePointerCoords.editTop().pressure = 0.5 * i + j;
samplePointerCoords.editTop().size = 0.7 * i + j;
samplePointerCoords.editTop().touchMajor = 1.5 * i + j;
samplePointerCoords.editTop().touchMinor = 1.7 * i + j;
samplePointerCoords.editTop().toolMajor = 2.5 * i + j;
samplePointerCoords.editTop().toolMinor = 2.7 * i + j;
samplePointerCoords.editTop().orientation = 3.5 * i + j;
}
}
status = mPublisher->publishMotionEvent(deviceId, source, action, flags, edgeFlags,
metaState, xOffset, yOffset, xPrecision, yPrecision,
downTime, sampleEventTimes[0], pointerCount, pointerIds, samplePointerCoords.array());
ASSERT_EQ(OK, status)
<< "publisher publishMotionEvent should return OK";
for (size_t i = 0; i < samplesToAppendBeforeDispatch; i++) {
size_t sampleIndex = i + 1;
status = mPublisher->appendMotionSample(sampleEventTimes[sampleIndex],
samplePointerCoords.array() + sampleIndex * pointerCount);
ASSERT_EQ(OK, status)
<< "publisher appendMotionEvent should return OK";
}
status = mPublisher->sendDispatchSignal();
ASSERT_EQ(OK, status)
<< "publisher sendDispatchSignal should return OK";
for (size_t i = 0; i < samplesToAppendAfterDispatch; i++) {
size_t sampleIndex = i + 1 + samplesToAppendBeforeDispatch;
status = mPublisher->appendMotionSample(sampleEventTimes[sampleIndex],
samplePointerCoords.array() + sampleIndex * pointerCount);
ASSERT_EQ(OK, status)
<< "publisher appendMotionEvent should return OK";
}
status = mConsumer->receiveDispatchSignal();
ASSERT_EQ(OK, status)
<< "consumer receiveDispatchSignal should return OK";
InputEvent* event;
status = mConsumer->consume(& mEventFactory, & event);
ASSERT_EQ(OK, status)
<< "consumer consume should return OK";
ASSERT_TRUE(event != NULL)
<< "consumer should have returned non-NULL event";
ASSERT_EQ(AINPUT_EVENT_TYPE_MOTION, event->getType())
<< "consumer should have returned a motion event";
size_t lastSampleIndex = samplesToAppendBeforeDispatch + samplesToAppendAfterDispatch;
MotionEvent* motionEvent = static_cast<MotionEvent*>(event);
EXPECT_EQ(deviceId, motionEvent->getDeviceId());
EXPECT_EQ(source, motionEvent->getSource());
EXPECT_EQ(action, motionEvent->getAction());
EXPECT_EQ(flags, motionEvent->getFlags());
EXPECT_EQ(edgeFlags, motionEvent->getEdgeFlags());
EXPECT_EQ(metaState, motionEvent->getMetaState());
EXPECT_EQ(xPrecision, motionEvent->getXPrecision());
EXPECT_EQ(yPrecision, motionEvent->getYPrecision());
EXPECT_EQ(downTime, motionEvent->getDownTime());
EXPECT_EQ(sampleEventTimes[lastSampleIndex], motionEvent->getEventTime());
EXPECT_EQ(pointerCount, motionEvent->getPointerCount());
EXPECT_EQ(lastSampleIndex, motionEvent->getHistorySize());
for (size_t i = 0; i < pointerCount; i++) {
SCOPED_TRACE(i);
EXPECT_EQ(pointerIds[i], motionEvent->getPointerId(i));
}
for (size_t sampleIndex = 0; sampleIndex < lastSampleIndex; sampleIndex++) {
SCOPED_TRACE(sampleIndex);
EXPECT_EQ(sampleEventTimes[sampleIndex],
motionEvent->getHistoricalEventTime(sampleIndex));
for (size_t i = 0; i < pointerCount; i++) {
SCOPED_TRACE(i);
size_t offset = sampleIndex * pointerCount + i;
EXPECT_EQ(samplePointerCoords[offset].x,
motionEvent->getHistoricalRawX(i, sampleIndex));
EXPECT_EQ(samplePointerCoords[offset].y,
motionEvent->getHistoricalRawY(i, sampleIndex));
EXPECT_EQ(samplePointerCoords[offset].x + xOffset,
motionEvent->getHistoricalX(i, sampleIndex));
EXPECT_EQ(samplePointerCoords[offset].y + yOffset,
motionEvent->getHistoricalY(i, sampleIndex));
EXPECT_EQ(samplePointerCoords[offset].pressure,
motionEvent->getHistoricalPressure(i, sampleIndex));
EXPECT_EQ(samplePointerCoords[offset].size,
motionEvent->getHistoricalSize(i, sampleIndex));
EXPECT_EQ(samplePointerCoords[offset].touchMajor,
motionEvent->getHistoricalTouchMajor(i, sampleIndex));
EXPECT_EQ(samplePointerCoords[offset].touchMinor,
motionEvent->getHistoricalTouchMinor(i, sampleIndex));
EXPECT_EQ(samplePointerCoords[offset].toolMajor,
motionEvent->getHistoricalToolMajor(i, sampleIndex));
EXPECT_EQ(samplePointerCoords[offset].toolMinor,
motionEvent->getHistoricalToolMinor(i, sampleIndex));
EXPECT_EQ(samplePointerCoords[offset].orientation,
motionEvent->getHistoricalOrientation(i, sampleIndex));
}
}
SCOPED_TRACE(lastSampleIndex);
EXPECT_EQ(sampleEventTimes[lastSampleIndex], motionEvent->getEventTime());
for (size_t i = 0; i < pointerCount; i++) {
SCOPED_TRACE(i);
size_t offset = lastSampleIndex * pointerCount + i;
EXPECT_EQ(samplePointerCoords[offset].x, motionEvent->getRawX(i));
EXPECT_EQ(samplePointerCoords[offset].y, motionEvent->getRawY(i));
EXPECT_EQ(samplePointerCoords[offset].x + xOffset, motionEvent->getX(i));
EXPECT_EQ(samplePointerCoords[offset].y + yOffset, motionEvent->getY(i));
EXPECT_EQ(samplePointerCoords[offset].pressure, motionEvent->getPressure(i));
EXPECT_EQ(samplePointerCoords[offset].size, motionEvent->getSize(i));
EXPECT_EQ(samplePointerCoords[offset].touchMajor, motionEvent->getTouchMajor(i));
EXPECT_EQ(samplePointerCoords[offset].touchMinor, motionEvent->getTouchMinor(i));
EXPECT_EQ(samplePointerCoords[offset].toolMajor, motionEvent->getToolMajor(i));
EXPECT_EQ(samplePointerCoords[offset].toolMinor, motionEvent->getToolMinor(i));
EXPECT_EQ(samplePointerCoords[offset].orientation, motionEvent->getOrientation(i));
}
status = mConsumer->sendFinishedSignal();
ASSERT_EQ(OK, status)
<< "consumer sendFinishedSignal should return OK";
status = mPublisher->receiveFinishedSignal();
ASSERT_EQ(OK, status)
<< "publisher receiveFinishedSignal should return OK";
status = mPublisher->reset();
ASSERT_EQ(OK, status)
<< "publisher reset should return OK";
}
Dialog::DialogOutput MessageDialog::handleEvent(const InputEvent &event) {
if (event.getType() == InputEvent::KEY_PRESSED || event.getType() == InputEvent::CLICK_SINGLE)
return Dialog::CLOSE;
return Dialog::NONE;
}
void InputPublisherAndConsumerTest::PublishAndConsumeMotionEvent() {
status_t status;
const uint32_t seq = 15;
const int32_t deviceId = 1;
const int32_t source = AINPUT_SOURCE_TOUCHSCREEN;
const int32_t action = AMOTION_EVENT_ACTION_MOVE;
const int32_t actionButton = 0;
const int32_t flags = AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED;
const int32_t edgeFlags = AMOTION_EVENT_EDGE_FLAG_TOP;
const int32_t metaState = AMETA_ALT_LEFT_ON | AMETA_ALT_ON;
const int32_t buttonState = AMOTION_EVENT_BUTTON_PRIMARY;
const float xOffset = -10;
const float yOffset = -20;
const float xPrecision = 0.25;
const float yPrecision = 0.5;
const nsecs_t downTime = 3;
const size_t pointerCount = 3;
const nsecs_t eventTime = 4;
PointerProperties pointerProperties[pointerCount];
PointerCoords pointerCoords[pointerCount];
for (size_t i = 0; i < pointerCount; i++) {
pointerProperties[i].clear();
pointerProperties[i].id = (i + 2) % pointerCount;
pointerProperties[i].toolType = AMOTION_EVENT_TOOL_TYPE_FINGER;
pointerCoords[i].clear();
pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_X, 100 * i);
pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_Y, 200 * i);
pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 0.5 * i);
pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_SIZE, 0.7 * i);
pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, 1.5 * i);
pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, 1.7 * i);
pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 2.5 * i);
pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, 2.7 * i);
pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 3.5 * i);
}
status = mPublisher->publishMotionEvent(seq, deviceId, source, action, actionButton,
flags, edgeFlags, metaState, buttonState, xOffset, yOffset, xPrecision, yPrecision,
downTime, eventTime, pointerCount,
pointerProperties, pointerCoords);
ASSERT_EQ(OK, status)
<< "publisher publishMotionEvent should return OK";
uint32_t consumeSeq;
InputEvent* event;
status = mConsumer->consume(&mEventFactory, true /*consumeBatches*/, -1, &consumeSeq, &event);
ASSERT_EQ(OK, status)
<< "consumer consume should return OK";
ASSERT_TRUE(event != NULL)
<< "consumer should have returned non-NULL event";
ASSERT_EQ(AINPUT_EVENT_TYPE_MOTION, event->getType())
<< "consumer should have returned a motion event";
MotionEvent* motionEvent = static_cast<MotionEvent*>(event);
EXPECT_EQ(seq, consumeSeq);
EXPECT_EQ(deviceId, motionEvent->getDeviceId());
EXPECT_EQ(source, motionEvent->getSource());
EXPECT_EQ(action, motionEvent->getAction());
EXPECT_EQ(flags, motionEvent->getFlags());
EXPECT_EQ(edgeFlags, motionEvent->getEdgeFlags());
EXPECT_EQ(metaState, motionEvent->getMetaState());
EXPECT_EQ(buttonState, motionEvent->getButtonState());
EXPECT_EQ(xPrecision, motionEvent->getXPrecision());
EXPECT_EQ(yPrecision, motionEvent->getYPrecision());
EXPECT_EQ(downTime, motionEvent->getDownTime());
EXPECT_EQ(eventTime, motionEvent->getEventTime());
EXPECT_EQ(pointerCount, motionEvent->getPointerCount());
EXPECT_EQ(0U, motionEvent->getHistorySize());
for (size_t i = 0; i < pointerCount; i++) {
SCOPED_TRACE(i);
EXPECT_EQ(pointerProperties[i].id, motionEvent->getPointerId(i));
EXPECT_EQ(pointerProperties[i].toolType, motionEvent->getToolType(i));
EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_X),
motionEvent->getRawX(i));
EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_Y),
motionEvent->getRawY(i));
EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_X) + xOffset,
motionEvent->getX(i));
EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_Y) + yOffset,
motionEvent->getY(i));
EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_PRESSURE),
motionEvent->getPressure(i));
EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_SIZE),
motionEvent->getSize(i));
EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR),
motionEvent->getTouchMajor(i));
EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR),
motionEvent->getTouchMinor(i));
EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR),
motionEvent->getToolMajor(i));
EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR),
motionEvent->getToolMinor(i));
EXPECT_EQ(pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION),
motionEvent->getOrientation(i));
}
status = mConsumer->sendFinishedSignal(seq, false);
ASSERT_EQ(OK, status)
<< "consumer sendFinishedSignal should return OK";
uint32_t finishedSeq = 0;
bool handled = true;
status = mPublisher->receiveFinishedSignal(&finishedSeq, &handled);
ASSERT_EQ(OK, status)
<< "publisher receiveFinishedSignal should return OK";
ASSERT_EQ(seq, finishedSeq)
<< "publisher receiveFinishedSignal should have returned the original sequence number";
ASSERT_FALSE(handled)
<< "publisher receiveFinishedSignal should have set handled to consumer's reply";
}
int NativeInputQueue::handleReceiveCallback(int receiveFd, int events, void* data) {
NativeInputQueue* q = static_cast<NativeInputQueue*>(data);
JNIEnv* env = AndroidRuntime::getJNIEnv();
sp<Connection> connection;
InputEvent* inputEvent;
jobject inputHandlerObjLocal;
jlong finishedToken;
{ // acquire lock
AutoMutex _l(q->mLock);
ssize_t connectionIndex = q->mConnectionsByReceiveFd.indexOfKey(receiveFd);
if (connectionIndex < 0) {
ALOGE("Received spurious receive callback for unknown input channel. "
"fd=%d, events=0x%x", receiveFd, events);
return 0; // remove the callback
}
connection = q->mConnectionsByReceiveFd.valueAt(connectionIndex);
if (events & (ALOOPER_EVENT_ERROR | ALOOPER_EVENT_HANGUP)) {
ALOGE("channel '%s' ~ Publisher closed input channel or an error occurred. "
"events=0x%x", connection->getInputChannelName(), events);
return 0; // remove the callback
}
if (! (events & ALOOPER_EVENT_INPUT)) {
ALOGW("channel '%s' ~ Received spurious callback for unhandled poll event. "
"events=0x%x", connection->getInputChannelName(), events);
return 1;
}
status_t status = connection->inputConsumer.receiveDispatchSignal();
if (status) {
ALOGE("channel '%s' ~ Failed to receive dispatch signal. status=%d",
connection->getInputChannelName(), status);
return 0; // remove the callback
}
if (connection->messageInProgress) {
ALOGW("channel '%s' ~ Publisher sent spurious dispatch signal.",
connection->getInputChannelName());
return 1;
}
status = connection->inputConsumer.consume(& connection->inputEventFactory, & inputEvent);
if (status) {
ALOGW("channel '%s' ~ Failed to consume input event. status=%d",
connection->getInputChannelName(), status);
connection->inputConsumer.sendFinishedSignal(false);
return 1;
}
connection->messageInProgress = true;
connection->messageSeqNum += 1;
finishedToken = generateFinishedToken(receiveFd, connection->id, connection->messageSeqNum);
inputHandlerObjLocal = env->NewLocalRef(connection->inputHandlerObjGlobal);
} // release lock
// Invoke the handler outside of the lock.
//
// Note: inputEvent is stored in a field of the connection object which could potentially
// become disposed due to the input channel being unregistered concurrently.
// For this reason, we explicitly keep the connection object alive by holding
// a strong pointer to it within this scope. We also grabbed a local reference to
// the input handler object itself for the same reason.
int32_t inputEventType = inputEvent->getType();
jobject inputEventObj;
jmethodID dispatchMethodId;
switch (inputEventType) {
case AINPUT_EVENT_TYPE_KEY:
#if DEBUG_DISPATCH_CYCLE
ALOGD("channel '%s' ~ Received key event.", connection->getInputChannelName());
#endif
inputEventObj = android_view_KeyEvent_fromNative(env,
static_cast<KeyEvent*>(inputEvent));
dispatchMethodId = gInputQueueClassInfo.dispatchKeyEvent;
break;
case AINPUT_EVENT_TYPE_MOTION:
#if DEBUG_DISPATCH_CYCLE
ALOGD("channel '%s' ~ Received motion event.", connection->getInputChannelName());
#endif
inputEventObj = android_view_MotionEvent_obtainAsCopy(env,
static_cast<MotionEvent*>(inputEvent));
dispatchMethodId = gInputQueueClassInfo.dispatchMotionEvent;
break;
default:
assert(false); // InputConsumer should prevent this from ever happening
inputEventObj = NULL;
}
if (! inputEventObj) {
ALOGW("channel '%s' ~ Failed to obtain DVM event object.",
connection->getInputChannelName());
env->DeleteLocalRef(inputHandlerObjLocal);
q->finished(env, finishedToken, false, false);
return 1;
}
#if DEBUG_DISPATCH_CYCLE
ALOGD("Invoking input handler.");
#endif
env->CallStaticVoidMethod(gInputQueueClassInfo.clazz,
dispatchMethodId, inputHandlerObjLocal, inputEventObj,
jlong(finishedToken));
#if DEBUG_DISPATCH_CYCLE
ALOGD("Returned from input handler.");
#endif
if (env->ExceptionCheck()) {
ALOGE("An exception occurred while invoking the input handler for an event.");
LOGE_EX(env);
env->ExceptionClear();
q->finished(env, finishedToken, false, true /*ignoreSpuriousFinish*/);
}
env->DeleteLocalRef(inputEventObj);
env->DeleteLocalRef(inputHandlerObjLocal);
return 1;
}