Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define LOG_TAG "InputEventReceiver" |
| 18 | |
| 19 | //#define LOG_NDEBUG 0 |
| 20 | |
| 21 | // Log debug messages about the dispatch cycle. |
| 22 | #define DEBUG_DISPATCH_CYCLE 0 |
| 23 | |
| 24 | |
| 25 | #include "JNIHelp.h" |
| 26 | |
| 27 | #include <android_runtime/AndroidRuntime.h> |
| 28 | #include <utils/Log.h> |
| 29 | #include <utils/Looper.h> |
Jeff Brown | 5651349 | 2013-05-21 20:37:51 -0700 | [diff] [blame] | 30 | #include <utils/Vector.h> |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 31 | #include <utils/threads.h> |
Mathias Agopian | b93a03f8 | 2012-02-17 15:34:57 -0800 | [diff] [blame] | 32 | #include <androidfw/InputTransport.h> |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 33 | #include "android_os_MessageQueue.h" |
| 34 | #include "android_view_InputChannel.h" |
| 35 | #include "android_view_KeyEvent.h" |
| 36 | #include "android_view_MotionEvent.h" |
| 37 | |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 38 | #include <ScopedLocalRef.h> |
| 39 | |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 40 | namespace android { |
| 41 | |
| 42 | static struct { |
| 43 | jclass clazz; |
| 44 | |
| 45 | jmethodID dispatchInputEvent; |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 46 | jmethodID dispatchBatchedInputEventPending; |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 47 | } gInputEventReceiverClassInfo; |
| 48 | |
| 49 | |
Jeff Brown | 80a1de1 | 2012-05-31 16:23:11 -0700 | [diff] [blame] | 50 | class NativeInputEventReceiver : public LooperCallback { |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 51 | public: |
| 52 | NativeInputEventReceiver(JNIEnv* env, |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 53 | jobject receiverWeak, const sp<InputChannel>& inputChannel, |
Jeff Brown | 603b445 | 2012-04-06 17:39:41 -0700 | [diff] [blame] | 54 | const sp<MessageQueue>& messageQueue); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 55 | |
| 56 | status_t initialize(); |
Jeff Brown | 80a1de1 | 2012-05-31 16:23:11 -0700 | [diff] [blame] | 57 | void dispose(); |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 58 | status_t finishInputEvent(uint32_t seq, bool handled); |
Jeff Brown | 771526c | 2012-04-27 15:13:25 -0700 | [diff] [blame] | 59 | status_t consumeEvents(JNIEnv* env, bool consumeBatches, nsecs_t frameTime); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 60 | |
| 61 | protected: |
| 62 | virtual ~NativeInputEventReceiver(); |
| 63 | |
| 64 | private: |
Jeff Brown | 5651349 | 2013-05-21 20:37:51 -0700 | [diff] [blame] | 65 | struct Finish { |
| 66 | uint32_t seq; |
| 67 | bool handled; |
| 68 | }; |
| 69 | |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 70 | jobject mReceiverWeakGlobal; |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 71 | InputConsumer mInputConsumer; |
Jeff Brown | 603b445 | 2012-04-06 17:39:41 -0700 | [diff] [blame] | 72 | sp<MessageQueue> mMessageQueue; |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 73 | PreallocatedInputEventFactory mInputEventFactory; |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 74 | bool mBatchedInputEventPending; |
Jeff Brown | 5651349 | 2013-05-21 20:37:51 -0700 | [diff] [blame] | 75 | int mFdEvents; |
| 76 | Vector<Finish> mFinishQueue; |
| 77 | |
| 78 | void setFdEvents(int events); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 79 | |
| 80 | const char* getInputChannelName() { |
| 81 | return mInputConsumer.getChannel()->getName().string(); |
| 82 | } |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 83 | |
Jeff Brown | 80a1de1 | 2012-05-31 16:23:11 -0700 | [diff] [blame] | 84 | virtual int handleEvent(int receiveFd, int events, void* data); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 85 | }; |
| 86 | |
| 87 | |
| 88 | NativeInputEventReceiver::NativeInputEventReceiver(JNIEnv* env, |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 89 | jobject receiverWeak, const sp<InputChannel>& inputChannel, |
Jeff Brown | 603b445 | 2012-04-06 17:39:41 -0700 | [diff] [blame] | 90 | const sp<MessageQueue>& messageQueue) : |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 91 | mReceiverWeakGlobal(env->NewGlobalRef(receiverWeak)), |
Jeff Brown | 603b445 | 2012-04-06 17:39:41 -0700 | [diff] [blame] | 92 | mInputConsumer(inputChannel), mMessageQueue(messageQueue), |
Jeff Brown | 5651349 | 2013-05-21 20:37:51 -0700 | [diff] [blame] | 93 | mBatchedInputEventPending(false), mFdEvents(0) { |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 94 | #if DEBUG_DISPATCH_CYCLE |
Steve Block | 5baa3a6 | 2011-12-20 16:23:08 +0000 | [diff] [blame] | 95 | ALOGD("channel '%s' ~ Initializing input event receiver.", getInputChannelName()); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 96 | #endif |
| 97 | } |
| 98 | |
| 99 | NativeInputEventReceiver::~NativeInputEventReceiver() { |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 100 | JNIEnv* env = AndroidRuntime::getJNIEnv(); |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 101 | env->DeleteGlobalRef(mReceiverWeakGlobal); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | status_t NativeInputEventReceiver::initialize() { |
Jeff Brown | 5651349 | 2013-05-21 20:37:51 -0700 | [diff] [blame] | 105 | setFdEvents(ALOOPER_EVENT_INPUT); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 106 | return OK; |
| 107 | } |
| 108 | |
Jeff Brown | 80a1de1 | 2012-05-31 16:23:11 -0700 | [diff] [blame] | 109 | void NativeInputEventReceiver::dispose() { |
| 110 | #if DEBUG_DISPATCH_CYCLE |
| 111 | ALOGD("channel '%s' ~ Disposing input event receiver.", getInputChannelName()); |
| 112 | #endif |
| 113 | |
Jeff Brown | 5651349 | 2013-05-21 20:37:51 -0700 | [diff] [blame] | 114 | setFdEvents(0); |
Jeff Brown | 80a1de1 | 2012-05-31 16:23:11 -0700 | [diff] [blame] | 115 | } |
| 116 | |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 117 | status_t NativeInputEventReceiver::finishInputEvent(uint32_t seq, bool handled) { |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 118 | #if DEBUG_DISPATCH_CYCLE |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 119 | ALOGD("channel '%s' ~ Finished input event.", getInputChannelName()); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 120 | #endif |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 121 | |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 122 | status_t status = mInputConsumer.sendFinishedSignal(seq, handled); |
| 123 | if (status) { |
Jeff Brown | 5651349 | 2013-05-21 20:37:51 -0700 | [diff] [blame] | 124 | if (status == WOULD_BLOCK) { |
| 125 | #if DEBUG_DISPATCH_CYCLE |
| 126 | ALOGD("channel '%s' ~ Could not send finished signal immediately. " |
| 127 | "Enqueued for later.", getInputChannelName()); |
| 128 | #endif |
| 129 | Finish finish; |
| 130 | finish.seq = seq; |
| 131 | finish.handled = handled; |
| 132 | mFinishQueue.add(finish); |
| 133 | if (mFinishQueue.size() == 1) { |
| 134 | setFdEvents(ALOOPER_EVENT_INPUT | ALOOPER_EVENT_OUTPUT); |
| 135 | } |
| 136 | return OK; |
| 137 | } |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 138 | ALOGW("Failed to send finished signal on channel '%s'. status=%d", |
| 139 | getInputChannelName(), status); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 140 | } |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 141 | return status; |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 142 | } |
| 143 | |
Jeff Brown | 5651349 | 2013-05-21 20:37:51 -0700 | [diff] [blame] | 144 | void NativeInputEventReceiver::setFdEvents(int events) { |
| 145 | if (mFdEvents != events) { |
| 146 | mFdEvents = events; |
| 147 | int fd = mInputConsumer.getChannel()->getFd(); |
| 148 | if (events) { |
| 149 | mMessageQueue->getLooper()->addFd(fd, 0, events, this, NULL); |
| 150 | } else { |
| 151 | mMessageQueue->getLooper()->removeFd(fd); |
| 152 | } |
| 153 | } |
| 154 | } |
| 155 | |
Jeff Brown | 80a1de1 | 2012-05-31 16:23:11 -0700 | [diff] [blame] | 156 | int NativeInputEventReceiver::handleEvent(int receiveFd, int events, void* data) { |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 157 | if (events & (ALOOPER_EVENT_ERROR | ALOOPER_EVENT_HANGUP)) { |
Jeff Brown | 44e13ef | 2013-03-27 12:34:30 -0700 | [diff] [blame] | 158 | #if DEBUG_DISPATCH_CYCLE |
| 159 | // This error typically occurs when the publisher has closed the input channel |
| 160 | // as part of removing a window or finishing an IME session, in which case |
| 161 | // the consumer will soon be disposed as well. |
| 162 | ALOGD("channel '%s' ~ Publisher closed input channel or an error occurred. " |
Jeff Brown | 80a1de1 | 2012-05-31 16:23:11 -0700 | [diff] [blame] | 163 | "events=0x%x", getInputChannelName(), events); |
Jeff Brown | 44e13ef | 2013-03-27 12:34:30 -0700 | [diff] [blame] | 164 | #endif |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 165 | return 0; // remove the callback |
| 166 | } |
| 167 | |
Jeff Brown | 5651349 | 2013-05-21 20:37:51 -0700 | [diff] [blame] | 168 | if (events & ALOOPER_EVENT_INPUT) { |
| 169 | JNIEnv* env = AndroidRuntime::getJNIEnv(); |
| 170 | status_t status = consumeEvents(env, false /*consumeBatches*/, -1); |
| 171 | mMessageQueue->raiseAndClearException(env, "handleReceiveCallback"); |
| 172 | return status == OK || status == NO_MEMORY ? 1 : 0; |
| 173 | } |
| 174 | |
| 175 | if (events & ALOOPER_EVENT_OUTPUT) { |
| 176 | for (size_t i = 0; i < mFinishQueue.size(); i++) { |
| 177 | const Finish& finish = mFinishQueue.itemAt(i); |
| 178 | status_t status = mInputConsumer.sendFinishedSignal(finish.seq, finish.handled); |
| 179 | if (status) { |
| 180 | mFinishQueue.removeItemsAt(0, i); |
| 181 | |
| 182 | if (status == WOULD_BLOCK) { |
| 183 | #if DEBUG_DISPATCH_CYCLE |
| 184 | ALOGD("channel '%s' ~ Sent %u queued finish events; %u left.", |
| 185 | getInputChannelName(), i, mFinishQueue.size()); |
| 186 | #endif |
| 187 | return 1; // keep the callback, try again later |
| 188 | } |
| 189 | |
| 190 | ALOGW("Failed to send finished signal on channel '%s'. status=%d", |
| 191 | getInputChannelName(), status); |
| 192 | if (status != DEAD_OBJECT) { |
| 193 | JNIEnv* env = AndroidRuntime::getJNIEnv(); |
| 194 | String8 message; |
| 195 | message.appendFormat("Failed to finish input event. status=%d", status); |
| 196 | jniThrowRuntimeException(env, message.string()); |
| 197 | mMessageQueue->raiseAndClearException(env, "finishInputEvent"); |
| 198 | } |
| 199 | return 0; // remove the callback |
| 200 | } |
| 201 | } |
| 202 | #if DEBUG_DISPATCH_CYCLE |
| 203 | ALOGD("channel '%s' ~ Sent %u queued finish events; none left.", |
| 204 | getInputChannelName(), mFinishQueue.size()); |
| 205 | #endif |
| 206 | mFinishQueue.clear(); |
| 207 | setFdEvents(ALOOPER_EVENT_INPUT); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 208 | return 1; |
| 209 | } |
| 210 | |
Jeff Brown | 5651349 | 2013-05-21 20:37:51 -0700 | [diff] [blame] | 211 | ALOGW("channel '%s' ~ Received spurious callback for unhandled poll event. " |
| 212 | "events=0x%x", getInputChannelName(), events); |
| 213 | return 1; |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 214 | } |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 215 | |
Jeff Brown | 771526c | 2012-04-27 15:13:25 -0700 | [diff] [blame] | 216 | status_t NativeInputEventReceiver::consumeEvents(JNIEnv* env, |
| 217 | bool consumeBatches, nsecs_t frameTime) { |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 218 | #if DEBUG_DISPATCH_CYCLE |
Jeff Brown | 771526c | 2012-04-27 15:13:25 -0700 | [diff] [blame] | 219 | ALOGD("channel '%s' ~ Consuming input events, consumeBatches=%s, frameTime=%lld.", |
| 220 | getInputChannelName(), consumeBatches ? "true" : "false", frameTime); |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 221 | #endif |
| 222 | |
| 223 | if (consumeBatches) { |
| 224 | mBatchedInputEventPending = false; |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 225 | } |
| 226 | |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 227 | ScopedLocalRef<jobject> receiverObj(env, NULL); |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 228 | bool skipCallbacks = false; |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 229 | for (;;) { |
| 230 | uint32_t seq; |
| 231 | InputEvent* inputEvent; |
| 232 | status_t status = mInputConsumer.consume(&mInputEventFactory, |
Jeff Brown | 771526c | 2012-04-27 15:13:25 -0700 | [diff] [blame] | 233 | consumeBatches, frameTime, &seq, &inputEvent); |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 234 | if (status) { |
| 235 | if (status == WOULD_BLOCK) { |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 236 | if (!skipCallbacks && !mBatchedInputEventPending |
| 237 | && mInputConsumer.hasPendingBatch()) { |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 238 | // There is a pending batch. Come back later. |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 239 | if (!receiverObj.get()) { |
| 240 | receiverObj.reset(jniGetReferent(env, mReceiverWeakGlobal)); |
| 241 | if (!receiverObj.get()) { |
| 242 | ALOGW("channel '%s' ~ Receiver object was finalized " |
| 243 | "without being disposed.", getInputChannelName()); |
| 244 | return DEAD_OBJECT; |
| 245 | } |
| 246 | } |
| 247 | |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 248 | mBatchedInputEventPending = true; |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 249 | #if DEBUG_DISPATCH_CYCLE |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 250 | ALOGD("channel '%s' ~ Dispatching batched input event pending notification.", |
| 251 | getInputChannelName()); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 252 | #endif |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 253 | env->CallVoidMethod(receiverObj.get(), |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 254 | gInputEventReceiverClassInfo.dispatchBatchedInputEventPending); |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 255 | if (env->ExceptionCheck()) { |
| 256 | ALOGE("Exception dispatching batched input events."); |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 257 | mBatchedInputEventPending = false; // try again later |
| 258 | } |
| 259 | } |
| 260 | return OK; |
| 261 | } |
| 262 | ALOGE("channel '%s' ~ Failed to consume input event. status=%d", |
| 263 | getInputChannelName(), status); |
| 264 | return status; |
| 265 | } |
| 266 | assert(inputEvent); |
| 267 | |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 268 | if (!skipCallbacks) { |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 269 | if (!receiverObj.get()) { |
| 270 | receiverObj.reset(jniGetReferent(env, mReceiverWeakGlobal)); |
| 271 | if (!receiverObj.get()) { |
| 272 | ALOGW("channel '%s' ~ Receiver object was finalized " |
| 273 | "without being disposed.", getInputChannelName()); |
| 274 | return DEAD_OBJECT; |
| 275 | } |
| 276 | } |
| 277 | |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 278 | jobject inputEventObj; |
| 279 | switch (inputEvent->getType()) { |
| 280 | case AINPUT_EVENT_TYPE_KEY: |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 281 | #if DEBUG_DISPATCH_CYCLE |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 282 | ALOGD("channel '%s' ~ Received key event.", getInputChannelName()); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 283 | #endif |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 284 | inputEventObj = android_view_KeyEvent_fromNative(env, |
| 285 | static_cast<KeyEvent*>(inputEvent)); |
| 286 | break; |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 287 | |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 288 | case AINPUT_EVENT_TYPE_MOTION: |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 289 | #if DEBUG_DISPATCH_CYCLE |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 290 | ALOGD("channel '%s' ~ Received motion event.", getInputChannelName()); |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 291 | #endif |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 292 | inputEventObj = android_view_MotionEvent_obtainAsCopy(env, |
| 293 | static_cast<MotionEvent*>(inputEvent)); |
| 294 | break; |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 295 | |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 296 | default: |
| 297 | assert(false); // InputConsumer should prevent this from ever happening |
| 298 | inputEventObj = NULL; |
| 299 | } |
| 300 | |
| 301 | if (inputEventObj) { |
| 302 | #if DEBUG_DISPATCH_CYCLE |
| 303 | ALOGD("channel '%s' ~ Dispatching input event.", getInputChannelName()); |
| 304 | #endif |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 305 | env->CallVoidMethod(receiverObj.get(), |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 306 | gInputEventReceiverClassInfo.dispatchInputEvent, seq, inputEventObj); |
| 307 | if (env->ExceptionCheck()) { |
| 308 | ALOGE("Exception dispatching input event."); |
| 309 | skipCallbacks = true; |
| 310 | } |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 311 | env->DeleteLocalRef(inputEventObj); |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 312 | } else { |
| 313 | ALOGW("channel '%s' ~ Failed to obtain event object.", getInputChannelName()); |
| 314 | skipCallbacks = true; |
| 315 | } |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 316 | } |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 317 | |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 318 | if (skipCallbacks) { |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 319 | mInputConsumer.sendFinishedSignal(seq, false); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 320 | } |
| 321 | } |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 322 | } |
| 323 | |
| 324 | |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 325 | static jint nativeInit(JNIEnv* env, jclass clazz, jobject receiverWeak, |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 326 | jobject inputChannelObj, jobject messageQueueObj) { |
| 327 | sp<InputChannel> inputChannel = android_view_InputChannel_getInputChannel(env, |
| 328 | inputChannelObj); |
| 329 | if (inputChannel == NULL) { |
| 330 | jniThrowRuntimeException(env, "InputChannel is not initialized."); |
| 331 | return 0; |
| 332 | } |
| 333 | |
Jeff Brown | 603b445 | 2012-04-06 17:39:41 -0700 | [diff] [blame] | 334 | sp<MessageQueue> messageQueue = android_os_MessageQueue_getMessageQueue(env, messageQueueObj); |
| 335 | if (messageQueue == NULL) { |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 336 | jniThrowRuntimeException(env, "MessageQueue is not initialized."); |
| 337 | return 0; |
| 338 | } |
| 339 | |
| 340 | sp<NativeInputEventReceiver> receiver = new NativeInputEventReceiver(env, |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 341 | receiverWeak, inputChannel, messageQueue); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 342 | status_t status = receiver->initialize(); |
| 343 | if (status) { |
| 344 | String8 message; |
| 345 | message.appendFormat("Failed to initialize input event receiver. status=%d", status); |
| 346 | jniThrowRuntimeException(env, message.string()); |
| 347 | return 0; |
| 348 | } |
| 349 | |
| 350 | receiver->incStrong(gInputEventReceiverClassInfo.clazz); // retain a reference for the object |
| 351 | return reinterpret_cast<jint>(receiver.get()); |
| 352 | } |
| 353 | |
| 354 | static void nativeDispose(JNIEnv* env, jclass clazz, jint receiverPtr) { |
| 355 | sp<NativeInputEventReceiver> receiver = |
| 356 | reinterpret_cast<NativeInputEventReceiver*>(receiverPtr); |
Jeff Brown | 80a1de1 | 2012-05-31 16:23:11 -0700 | [diff] [blame] | 357 | receiver->dispose(); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 358 | receiver->decStrong(gInputEventReceiverClassInfo.clazz); // drop reference held by the object |
| 359 | } |
| 360 | |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 361 | static void nativeFinishInputEvent(JNIEnv* env, jclass clazz, jint receiverPtr, |
| 362 | jint seq, jboolean handled) { |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 363 | sp<NativeInputEventReceiver> receiver = |
| 364 | reinterpret_cast<NativeInputEventReceiver*>(receiverPtr); |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 365 | status_t status = receiver->finishInputEvent(seq, handled); |
Jeff Brown | 9806a23 | 2012-02-17 10:28:09 -0800 | [diff] [blame] | 366 | if (status && status != DEAD_OBJECT) { |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 367 | String8 message; |
| 368 | message.appendFormat("Failed to finish input event. status=%d", status); |
| 369 | jniThrowRuntimeException(env, message.string()); |
| 370 | } |
| 371 | } |
| 372 | |
Jeff Brown | 771526c | 2012-04-27 15:13:25 -0700 | [diff] [blame] | 373 | static void nativeConsumeBatchedInputEvents(JNIEnv* env, jclass clazz, jint receiverPtr, |
| 374 | jlong frameTimeNanos) { |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 375 | sp<NativeInputEventReceiver> receiver = |
| 376 | reinterpret_cast<NativeInputEventReceiver*>(receiverPtr); |
Jeff Brown | 771526c | 2012-04-27 15:13:25 -0700 | [diff] [blame] | 377 | status_t status = receiver->consumeEvents(env, true /*consumeBatches*/, frameTimeNanos); |
Jeff Brown | 3bdcdd8 | 2012-04-10 20:36:07 -0700 | [diff] [blame] | 378 | if (status && status != DEAD_OBJECT && !env->ExceptionCheck()) { |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 379 | String8 message; |
| 380 | message.appendFormat("Failed to consume batched input event. status=%d", status); |
| 381 | jniThrowRuntimeException(env, message.string()); |
| 382 | } |
| 383 | } |
| 384 | |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 385 | |
| 386 | static JNINativeMethod gMethods[] = { |
| 387 | /* name, signature, funcPtr */ |
| 388 | { "nativeInit", |
Jeff Brown | a4ca8ea | 2013-04-02 18:01:38 -0700 | [diff] [blame] | 389 | "(Ljava/lang/ref/WeakReference;Landroid/view/InputChannel;Landroid/os/MessageQueue;)I", |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 390 | (void*)nativeInit }, |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 391 | { "nativeDispose", "(I)V", |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 392 | (void*)nativeDispose }, |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 393 | { "nativeFinishInputEvent", "(IIZ)V", |
| 394 | (void*)nativeFinishInputEvent }, |
Jeff Brown | 771526c | 2012-04-27 15:13:25 -0700 | [diff] [blame] | 395 | { "nativeConsumeBatchedInputEvents", "(IJ)V", |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 396 | (void*)nativeConsumeBatchedInputEvents }, |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 397 | }; |
| 398 | |
| 399 | #define FIND_CLASS(var, className) \ |
| 400 | var = env->FindClass(className); \ |
| 401 | LOG_FATAL_IF(! var, "Unable to find class " className); \ |
| 402 | var = jclass(env->NewGlobalRef(var)); |
| 403 | |
| 404 | #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \ |
| 405 | var = env->GetMethodID(clazz, methodName, methodDescriptor); \ |
| 406 | LOG_FATAL_IF(! var, "Unable to find method " methodName); |
| 407 | |
| 408 | int register_android_view_InputEventReceiver(JNIEnv* env) { |
| 409 | int res = jniRegisterNativeMethods(env, "android/view/InputEventReceiver", |
| 410 | gMethods, NELEM(gMethods)); |
| 411 | LOG_FATAL_IF(res < 0, "Unable to register native methods."); |
| 412 | |
| 413 | FIND_CLASS(gInputEventReceiverClassInfo.clazz, "android/view/InputEventReceiver"); |
| 414 | |
| 415 | GET_METHOD_ID(gInputEventReceiverClassInfo.dispatchInputEvent, |
| 416 | gInputEventReceiverClassInfo.clazz, |
Jeff Brown | 072ec96 | 2012-02-07 14:46:57 -0800 | [diff] [blame] | 417 | "dispatchInputEvent", "(ILandroid/view/InputEvent;)V"); |
| 418 | GET_METHOD_ID(gInputEventReceiverClassInfo.dispatchBatchedInputEventPending, |
| 419 | gInputEventReceiverClassInfo.clazz, |
| 420 | "dispatchBatchedInputEventPending", "()V"); |
Jeff Brown | 32cbc3855 | 2011-12-01 14:01:49 -0800 | [diff] [blame] | 421 | return 0; |
| 422 | } |
| 423 | |
| 424 | } // namespace android |