android_view_InputEventReceiver.cpp revision 072ec96a4900d4616574733646ee46311cb5d2cb
132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown/* 232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown * Copyright (C) 2011 The Android Open Source Project 332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown * 432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown * Licensed under the Apache License, Version 2.0 (the "License"); 532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown * you may not use this file except in compliance with the License. 632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown * You may obtain a copy of the License at 732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown * 832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown * http://www.apache.org/licenses/LICENSE-2.0 932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown * 1032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown * Unless required by applicable law or agreed to in writing, software 1132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown * distributed under the License is distributed on an "AS IS" BASIS, 1232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown * See the License for the specific language governing permissions and 1432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown * limitations under the License. 1532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown */ 1632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 1732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#define LOG_TAG "InputEventReceiver" 1832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 1932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown//#define LOG_NDEBUG 0 2032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 2132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown// Log debug messages about the dispatch cycle. 2232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#define DEBUG_DISPATCH_CYCLE 0 2332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 2432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 2532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#include "JNIHelp.h" 2632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 2732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#include <android_runtime/AndroidRuntime.h> 2832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#include <utils/Log.h> 2932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#include <utils/Looper.h> 3032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#include <utils/threads.h> 3132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#include <ui/InputTransport.h> 3232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#include "android_os_MessageQueue.h" 3332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#include "android_view_InputChannel.h" 3432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#include "android_view_KeyEvent.h" 3532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#include "android_view_MotionEvent.h" 3632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 3732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brownnamespace android { 3832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 3932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brownstatic struct { 4032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown jclass clazz; 4132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 4232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown jmethodID dispatchInputEvent; 43072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown jmethodID dispatchBatchedInputEventPending; 4432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown} gInputEventReceiverClassInfo; 4532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 4632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 4732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brownclass NativeInputEventReceiver : public RefBase { 4832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brownpublic: 4932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown NativeInputEventReceiver(JNIEnv* env, 5032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown jobject receiverObj, const sp<InputChannel>& inputChannel, 5132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown const sp<Looper>& looper); 5232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 5332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown status_t initialize(); 54072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown status_t finishInputEvent(uint32_t seq, bool handled); 55072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown status_t consumeEvents(bool consumeBatches); 5632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown static int handleReceiveCallback(int receiveFd, int events, void* data); 5732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 5832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brownprotected: 5932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown virtual ~NativeInputEventReceiver(); 6032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 6132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brownprivate: 6232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown jobject mReceiverObjGlobal; 6332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown InputConsumer mInputConsumer; 6432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown sp<Looper> mLooper; 6532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown PreallocatedInputEventFactory mInputEventFactory; 66072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown bool mBatchedInputEventPending; 6732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 6832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown const char* getInputChannelName() { 6932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown return mInputConsumer.getChannel()->getName().string(); 7032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown } 7132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown}; 7232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 7332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 7432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff BrownNativeInputEventReceiver::NativeInputEventReceiver(JNIEnv* env, 7532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown jobject receiverObj, const sp<InputChannel>& inputChannel, const sp<Looper>& looper) : 7632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown mReceiverObjGlobal(env->NewGlobalRef(receiverObj)), 77072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown mInputConsumer(inputChannel), mLooper(looper), 78072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown mBatchedInputEventPending(false) { 7932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#if DEBUG_DISPATCH_CYCLE 805baa3a62a97544669fba6d65a11c07f252e654ddSteve Block ALOGD("channel '%s' ~ Initializing input event receiver.", getInputChannelName()); 8132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#endif 8232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown} 8332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 8432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff BrownNativeInputEventReceiver::~NativeInputEventReceiver() { 8532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#if DEBUG_DISPATCH_CYCLE 865baa3a62a97544669fba6d65a11c07f252e654ddSteve Block ALOGD("channel '%s' ~ Disposing input event receiver.", getInputChannelName()); 8732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#endif 8832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 89cbee6d6ede0499fb4a2c00bfc00d5db8d9ed5139Jeff Brown mLooper->removeFd(mInputConsumer.getChannel()->getFd()); 9032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 9132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown JNIEnv* env = AndroidRuntime::getJNIEnv(); 9232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown env->DeleteGlobalRef(mReceiverObjGlobal); 9332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown} 9432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 9532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brownstatus_t NativeInputEventReceiver::initialize() { 96cbee6d6ede0499fb4a2c00bfc00d5db8d9ed5139Jeff Brown int32_t receiveFd = mInputConsumer.getChannel()->getFd(); 9732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown mLooper->addFd(receiveFd, 0, ALOOPER_EVENT_INPUT, handleReceiveCallback, this); 9832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown return OK; 9932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown} 10032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 101072ec96a4900d4616574733646ee46311cb5d2cbJeff Brownstatus_t NativeInputEventReceiver::finishInputEvent(uint32_t seq, bool handled) { 10232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#if DEBUG_DISPATCH_CYCLE 103072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown ALOGD("channel '%s' ~ Finished input event.", getInputChannelName()); 10432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#endif 10532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 106072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown status_t status = mInputConsumer.sendFinishedSignal(seq, handled); 107072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown if (status) { 108072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown ALOGW("Failed to send finished signal on channel '%s'. status=%d", 109072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown getInputChannelName(), status); 11032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown } 111072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown return status; 11232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown} 11332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 11432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brownint NativeInputEventReceiver::handleReceiveCallback(int receiveFd, int events, void* data) { 11532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown sp<NativeInputEventReceiver> r = static_cast<NativeInputEventReceiver*>(data); 11632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 11732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown if (events & (ALOOPER_EVENT_ERROR | ALOOPER_EVENT_HANGUP)) { 1183762c311729fe9f3af085c14c5c1fb471d994c03Steve Block ALOGE("channel '%s' ~ Publisher closed input channel or an error occurred. " 11932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown "events=0x%x", r->getInputChannelName(), events); 12032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown return 0; // remove the callback 12132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown } 12232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 12332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown if (!(events & ALOOPER_EVENT_INPUT)) { 1248564c8da817a845353d213acd8636b76f567b234Steve Block ALOGW("channel '%s' ~ Received spurious callback for unhandled poll event. " 12532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown "events=0x%x", r->getInputChannelName(), events); 12632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown return 1; 12732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown } 12832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 129072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown status_t status = r->consumeEvents(false /*consumeBatches*/); 130072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown return status == OK || status == NO_MEMORY ? 1 : 0; 131072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown} 13232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 133072ec96a4900d4616574733646ee46311cb5d2cbJeff Brownstatus_t NativeInputEventReceiver::consumeEvents(bool consumeBatches) { 134072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown#if DEBUG_DISPATCH_CYCLE 135072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown ALOGD("channel '%s' ~ Consuming input events, consumeBatches=%s.", getInputChannelName(), 136072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown consumeBatches ? "true" : "false"); 137072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown#endif 138072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown 139072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown if (consumeBatches) { 140072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown mBatchedInputEventPending = false; 14132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown } 14232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 14332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown JNIEnv* env = AndroidRuntime::getJNIEnv(); 144072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown for (;;) { 145072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown uint32_t seq; 146072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown InputEvent* inputEvent; 147072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown status_t status = mInputConsumer.consume(&mInputEventFactory, 148072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown consumeBatches, &seq, &inputEvent); 149072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown if (status) { 150072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown if (status == WOULD_BLOCK) { 151072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown if (mInputConsumer.hasPendingBatch() && !mBatchedInputEventPending) { 152072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown // There is a pending batch. Come back later. 153072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown mBatchedInputEventPending = true; 15432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#if DEBUG_DISPATCH_CYCLE 155072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown ALOGD("channel '%s' ~ Dispatching batched input event pending notification.", 156072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown getInputChannelName()); 15732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#endif 158072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown env->CallVoidMethod(mReceiverObjGlobal, 159072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown gInputEventReceiverClassInfo.dispatchBatchedInputEventPending); 160072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown 161072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown if (env->ExceptionCheck()) { 162072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown ALOGE("channel '%s' ~ An exception occurred while dispatching that " 163072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown "batched input events are pending.", getInputChannelName()); 164072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown LOGE_EX(env); 165072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown env->ExceptionClear(); 166072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown mBatchedInputEventPending = false; // try again later 167072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown } 168072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown } 169072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown return OK; 170072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown } 171072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown ALOGE("channel '%s' ~ Failed to consume input event. status=%d", 172072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown getInputChannelName(), status); 173072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown return status; 174072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown } 175072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown assert(inputEvent); 17632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 177072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown jobject inputEventObj; 178072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown switch (inputEvent->getType()) { 179072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown case AINPUT_EVENT_TYPE_KEY: 18032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#if DEBUG_DISPATCH_CYCLE 181072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown ALOGD("channel '%s' ~ Received key event.", getInputChannelName()); 18232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#endif 183072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown inputEventObj = android_view_KeyEvent_fromNative(env, 184072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown static_cast<KeyEvent*>(inputEvent)); 185072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown break; 18632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 187072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown case AINPUT_EVENT_TYPE_MOTION: 188072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown#if DEBUG_DISPATCH_CYCLE 189072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown ALOGD("channel '%s' ~ Received motion event.", getInputChannelName()); 190072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown#endif 191072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown inputEventObj = android_view_MotionEvent_obtainAsCopy(env, 192072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown static_cast<MotionEvent*>(inputEvent)); 193072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown break; 19432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 195072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown default: 196072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown assert(false); // InputConsumer should prevent this from ever happening 197072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown inputEventObj = NULL; 198072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown } 19932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 200072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown if (!inputEventObj) { 201072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown ALOGW("channel '%s' ~ Failed to obtain event object.", getInputChannelName()); 202072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown mInputConsumer.sendFinishedSignal(seq, false); 203072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown return NO_MEMORY; 204072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown } 20532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 20632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#if DEBUG_DISPATCH_CYCLE 207072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown ALOGD("channel '%s' ~ Dispatching input event.", getInputChannelName()); 20832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#endif 209072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown env->CallVoidMethod(mReceiverObjGlobal, 210072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown gInputEventReceiverClassInfo.dispatchInputEvent, seq, inputEventObj); 21132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 212072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown env->DeleteLocalRef(inputEventObj); 21332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 214072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown if (env->ExceptionCheck()) { 215072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown ALOGE("channel '%s' ~ An exception occurred while dispatching an event.", 216072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown getInputChannelName()); 217072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown LOGE_EX(env); 218072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown env->ExceptionClear(); 219072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown 220072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown mInputConsumer.sendFinishedSignal(seq, false); 221072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown return OK; 22232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown } 22332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown } 22432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown} 22532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 22632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 22732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brownstatic jint nativeInit(JNIEnv* env, jclass clazz, jobject receiverObj, 22832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown jobject inputChannelObj, jobject messageQueueObj) { 22932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown sp<InputChannel> inputChannel = android_view_InputChannel_getInputChannel(env, 23032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown inputChannelObj); 23132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown if (inputChannel == NULL) { 23232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown jniThrowRuntimeException(env, "InputChannel is not initialized."); 23332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown return 0; 23432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown } 23532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 23632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown sp<Looper> looper = android_os_MessageQueue_getLooper(env, messageQueueObj); 23732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown if (looper == NULL) { 23832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown jniThrowRuntimeException(env, "MessageQueue is not initialized."); 23932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown return 0; 24032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown } 24132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 24232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown sp<NativeInputEventReceiver> receiver = new NativeInputEventReceiver(env, 24332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown receiverObj, inputChannel, looper); 24432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown status_t status = receiver->initialize(); 24532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown if (status) { 24632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown String8 message; 24732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown message.appendFormat("Failed to initialize input event receiver. status=%d", status); 24832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown jniThrowRuntimeException(env, message.string()); 24932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown return 0; 25032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown } 25132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 25232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown receiver->incStrong(gInputEventReceiverClassInfo.clazz); // retain a reference for the object 25332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown return reinterpret_cast<jint>(receiver.get()); 25432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown} 25532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 25632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brownstatic void nativeDispose(JNIEnv* env, jclass clazz, jint receiverPtr) { 25732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown sp<NativeInputEventReceiver> receiver = 25832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown reinterpret_cast<NativeInputEventReceiver*>(receiverPtr); 25932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown receiver->decStrong(gInputEventReceiverClassInfo.clazz); // drop reference held by the object 26032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown} 26132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 262072ec96a4900d4616574733646ee46311cb5d2cbJeff Brownstatic void nativeFinishInputEvent(JNIEnv* env, jclass clazz, jint receiverPtr, 263072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown jint seq, jboolean handled) { 26432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown sp<NativeInputEventReceiver> receiver = 26532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown reinterpret_cast<NativeInputEventReceiver*>(receiverPtr); 266072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown status_t status = receiver->finishInputEvent(seq, handled); 26732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown if (status) { 26832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown String8 message; 26932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown message.appendFormat("Failed to finish input event. status=%d", status); 27032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown jniThrowRuntimeException(env, message.string()); 27132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown } 27232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown} 27332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 274072ec96a4900d4616574733646ee46311cb5d2cbJeff Brownstatic void nativeConsumeBatchedInputEvents(JNIEnv* env, jclass clazz, jint receiverPtr) { 275072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown sp<NativeInputEventReceiver> receiver = 276072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown reinterpret_cast<NativeInputEventReceiver*>(receiverPtr); 277072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown status_t status = receiver->consumeEvents(true /*consumeBatches*/); 278072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown if (status) { 279072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown String8 message; 280072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown message.appendFormat("Failed to consume batched input event. status=%d", status); 281072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown jniThrowRuntimeException(env, message.string()); 282072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown } 283072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown} 284072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown 28532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 28632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brownstatic JNINativeMethod gMethods[] = { 28732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown /* name, signature, funcPtr */ 28832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown { "nativeInit", 28932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown "(Landroid/view/InputEventReceiver;Landroid/view/InputChannel;Landroid/os/MessageQueue;)I", 29032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown (void*)nativeInit }, 291072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown { "nativeDispose", "(I)V", 29232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown (void*)nativeDispose }, 293072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown { "nativeFinishInputEvent", "(IIZ)V", 294072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown (void*)nativeFinishInputEvent }, 295072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown { "nativeConsumeBatchedInputEvents", "(I)V", 296072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown (void*)nativeConsumeBatchedInputEvents }, 29732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown}; 29832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 29932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#define FIND_CLASS(var, className) \ 30032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown var = env->FindClass(className); \ 30132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown LOG_FATAL_IF(! var, "Unable to find class " className); \ 30232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown var = jclass(env->NewGlobalRef(var)); 30332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 30432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown#define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \ 30532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown var = env->GetMethodID(clazz, methodName, methodDescriptor); \ 30632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown LOG_FATAL_IF(! var, "Unable to find method " methodName); 30732cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 30832cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brownint register_android_view_InputEventReceiver(JNIEnv* env) { 30932cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown int res = jniRegisterNativeMethods(env, "android/view/InputEventReceiver", 31032cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown gMethods, NELEM(gMethods)); 31132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown LOG_FATAL_IF(res < 0, "Unable to register native methods."); 31232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 31332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown FIND_CLASS(gInputEventReceiverClassInfo.clazz, "android/view/InputEventReceiver"); 31432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 31532cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown GET_METHOD_ID(gInputEventReceiverClassInfo.dispatchInputEvent, 31632cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown gInputEventReceiverClassInfo.clazz, 317072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown "dispatchInputEvent", "(ILandroid/view/InputEvent;)V"); 318072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown GET_METHOD_ID(gInputEventReceiverClassInfo.dispatchBatchedInputEventPending, 319072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown gInputEventReceiverClassInfo.clazz, 320072ec96a4900d4616574733646ee46311cb5d2cbJeff Brown "dispatchBatchedInputEventPending", "()V"); 32132cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown return 0; 32232cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown} 32332cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown 32432cbc3855c2a971aa5a801fd339fb6a37db91a1aJeff Brown} // namespace android 325