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authorMichael Wright <michaelwr@google.com>2014-02-10 15:08:18 -0800
committerMichael Wright <michaelwr@google.com>2014-02-10 15:08:18 -0800
commit1b1fe314c4e74ef85afe4dacd7ba1e87e6862aa3 (patch)
treecc57db9d4963929f36eff25c5312675bd9762ceb /services/inputflinger/InputDispatcher.cpp
parent2dceb67f1f32bd2ec589c4ac3d83da0b8dbe4a5c (diff)
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Revert "Move inputservice over to frameworks/native"
This reverts commit 2dceb67f1f32bd2ec589c4ac3d83da0b8dbe4a5c.
Diffstat (limited to 'services/inputflinger/InputDispatcher.cpp')
-rw-r--r--services/inputflinger/InputDispatcher.cpp4473
1 files changed, 0 insertions, 4473 deletions
diff --git a/services/inputflinger/InputDispatcher.cpp b/services/inputflinger/InputDispatcher.cpp
deleted file mode 100644
index 8c8e705..0000000
--- a/services/inputflinger/InputDispatcher.cpp
+++ /dev/null
@@ -1,4473 +0,0 @@
-/*
- * 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 ATRACE_TAG ATRACE_TAG_INPUT
-
-//#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 the dispatch cycle.
-#define DEBUG_DISPATCH_CYCLE 0
-
-// Log debug messages about registrations.
-#define DEBUG_REGISTRATION 0
-
-// Log debug messages about input event injection.
-#define DEBUG_INJECTION 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 <utils/Trace.h>
-#include <cutils/log.h>
-#include <androidfw/PowerManager.h>
-#include <ui/Region.h>
-
-#include <stddef.h>
-#include <unistd.h>
-#include <errno.h>
-#include <limits.h>
-#include <time.h>
-
-#define INDENT " "
-#define INDENT2 " "
-#define INDENT3 " "
-#define INDENT4 " "
-
-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
-
-// Amount of time to allow touch events to be streamed out to a connection before requiring
-// that the first event be finished. This value extends the ANR timeout by the specified
-// amount. For example, if streaming is allowed to get ahead by one second relative to the
-// queue of waiting unfinished events, then ANRs will similarly be delayed by one second.
-const nsecs_t STREAM_AHEAD_EVENT_TIMEOUT = 500 * 1000000LL; // 0.5sec
-
-// Log a warning when an event takes longer than this to process, even if an ANR does not occur.
-const nsecs_t SLOW_EVENT_PROCESSING_WARNING_TIMEOUT = 2000 * 1000000LL; // 2sec
-
-// Number of recent events to keep for debugging purposes.
-const size_t RECENT_QUEUE_MAX_SIZE = 10;
-
-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)) {
- ALOGE("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)) {
- ALOGE("Motion event has invalid action code 0x%x", action);
- return false;
- }
- if (pointerCount < 1 || pointerCount > MAX_POINTERS) {
- ALOGE("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) {
- ALOGE("Motion event has invalid pointer id %d; value must be between 0 and %d",
- id, MAX_POINTER_ID);
- return false;
- }
- if (pointerIdBits.hasBit(id)) {
- ALOGE("Motion event has duplicate pointer id %d", id);
- return false;
- }
- pointerIdBits.markBit(id);
- }
- return true;
-}
-
-static bool isMainDisplay(int32_t displayId) {
- return displayId == ADISPLAY_ID_DEFAULT || displayId == ADISPLAY_ID_NONE;
-}
-
-static void dumpRegion(String8& dump, const Region& region) {
- if (region.isEmpty()) {
- dump.append("<empty>");
- return;
- }
-
- bool first = true;
- Region::const_iterator cur = region.begin();
- Region::const_iterator const tail = region.end();
- while (cur != tail) {
- if (first) {
- first = false;
- } else {
- dump.append("|");
- }
- dump.appendFormat("[%d,%d][%d,%d]", cur->left, cur->top, cur->right, cur->bottom);
- cur++;
- }
-}
-
-
-// --- InputDispatcher ---
-
-InputDispatcher::InputDispatcher(const sp<InputDispatcherPolicyInterface>& policy) :
- mPolicy(policy),
- mPendingEvent(NULL), mAppSwitchSawKeyDown(false), mAppSwitchDueTime(LONG_LONG_MAX),
- mNextUnblockedEvent(NULL),
- mDispatchEnabled(false), mDispatchFrozen(false), mInputFilterEnabled(false),
- mInputTargetWaitCause(INPUT_TARGET_WAIT_CAUSE_NONE) {
- mLooper = new Looper(false);
-
- mKeyRepeatState.lastKeyEntry = NULL;
-
- policy->getDispatcherConfiguration(&mConfig);
-}
-
-InputDispatcher::~InputDispatcher() {
- { // acquire lock
- AutoMutex _l(mLock);
-
- resetKeyRepeatLocked();
- releasePendingEventLocked();
- drainInboundQueueLocked();
- }
-
- while (mConnectionsByFd.size() != 0) {
- unregisterInputChannel(mConnectionsByFd.valueAt(0)->inputChannel);
- }
-}
-
-void InputDispatcher::dispatchOnce() {
- nsecs_t nextWakeupTime = LONG_LONG_MAX;
- { // acquire lock
- AutoMutex _l(mLock);
- mDispatcherIsAliveCondition.broadcast();
-
- // Run a dispatch loop if there are no pending commands.
- // The dispatch loop might enqueue commands to run afterwards.
- if (!haveCommandsLocked()) {
- dispatchOnceInnerLocked(&nextWakeupTime);
- }
-
- // Run all pending commands if there are any.
- // If any commands were run then force the next poll to wake up immediately.
- if (runCommandsLockedInterruptible()) {
- nextWakeupTime = LONG_LONG_MIN;
- }
- } // 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
- ALOGD("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;
- }
- }
- }
-
- // Nothing to do if there is no pending event.
- if (!mPendingEvent) {
- return;
- }
- } else {
- // Inbound queue has at least one entry.
- mPendingEvent = mInboundQueue.dequeueAtHead();
- traceInboundQueueLengthLocked();
- }
-
- // Poke user activity for this event.
- if (mPendingEvent->policyFlags & POLICY_FLAG_PASS_TO_USER) {
- pokeUserActivityLocked(mPendingEvent);
- }
-
- // Get ready to dispatch the event.
- resetANRTimeoutsLocked();
- }
-
- // Now we have an event to dispatch.
- // All events are eventually dequeued and processed this way, even if we intend to drop them.
- ALOG_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_DEVICE_RESET: {
- DeviceResetEntry* typedEntry =
- static_cast<DeviceResetEntry*>(mPendingEvent);
- done = dispatchDeviceResetLocked(currentTime, typedEntry);
- dropReason = DROP_REASON_NOT_DROPPED; // device resets 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:
- ALOG_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);
- traceInboundQueueLengthLocked();
-
- 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
- ALOGD("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 displayId = motionEntry->displayId;
- int32_t x = int32_t(motionEntry->pointerCoords[0].
- getAxisValue(AMOTION_EVENT_AXIS_X));
- int32_t y = int32_t(motionEntry->pointerCoords[0].
- getAxisValue(AMOTION_EVENT_AXIS_Y));
- sp<InputWindowHandle> touchedWindowHandle = findTouchedWindowAtLocked(displayId, 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;
-}
-
-void InputDispatcher::addRecentEventLocked(EventEntry* entry) {
- entry->refCount += 1;
- mRecentQueue.enqueueAtTail(entry);
- if (mRecentQueue.count() > RECENT_QUEUE_MAX_SIZE) {
- mRecentQueue.dequeueAtHead()->release();
- }
-}
-
-sp<InputWindowHandle> InputDispatcher::findTouchedWindowAtLocked(int32_t displayId,
- 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);
- const InputWindowInfo* windowInfo = windowHandle->getInfo();
- if (windowInfo->displayId == displayId) {
- int32_t flags = windowInfo->layoutParamsFlags;
- int32_t privateFlags = windowInfo->layoutParamsPrivateFlags;
-
- if (windowInfo->visible) {
- if (!(flags & InputWindowInfo::FLAG_NOT_TOUCHABLE)) {
- bool isTouchModal = (flags & (InputWindowInfo::FLAG_NOT_FOCUSABLE
- | InputWindowInfo::FLAG_NOT_TOUCH_MODAL)) == 0;
- if (isTouchModal || windowInfo->touchableRegionContainsPoint(x, y)) {
- // Found window.
- return windowHandle;
- }
- }
- }
-
- if (privateFlags & InputWindowInfo::PRIVATE_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
- ALOGD("Dropped event because policy consumed it.");
-#endif
- reason = "inbound event was dropped because the policy consumed it";
- break;
- case DROP_REASON_DISABLED:
- ALOGI("Dropped event because input dispatch is disabled.");
- reason = "inbound event was dropped because input dispatch is disabled";
- break;
- case DROP_REASON_APP_SWITCH:
- ALOGI("Dropped event because of pending overdue app switch.");
- reason = "inbound event was dropped because of pending overdue app switch";
- break;
- case DROP_REASON_BLOCKED:
- ALOGI("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:
- ALOGI("Dropped event because it is stale.");
- reason = "inbound event was dropped because it is stale";
- break;
- default:
- ALOG_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
- || keyCode == AKEYCODE_APP_SWITCH;
-}
-
-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) {
- ALOGD("App switch has arrived.");
- } else {
- ALOGD("App switch was abandoned.");
- }
-#endif
-}
-
-bool InputDispatcher::isStaleEventLocked(nsecs_t currentTime, EventEntry* entry) {
- return currentTime - entry->eventTime >= STALE_EVENT_TIMEOUT;
-}
-
-bool InputDispatcher::haveCommandsLocked() const {
- return !mCommandQueue.isEmpty();
-}
-
-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);
- }
- traceInboundQueueLengthLocked();
-}
-
-void InputDispatcher::releasePendingEventLocked() {
- if (mPendingEvent) {
- resetANRTimeoutsLocked();
- 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
- ALOGD("Injected inbound event was dropped.");
-#endif
- setInjectionResultLocked(entry, INPUT_EVENT_INJECTION_FAILED);
- }
- if (entry == mNextUnblockedEvent) {
- mNextUnblockedEvent = NULL;
- }
- addRecentEventLocked(entry);
- 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
- ALOGD("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::dispatchDeviceResetLocked(
- nsecs_t currentTime, DeviceResetEntry* entry) {
-#if DEBUG_OUTBOUND_EVENT_DETAILS
- ALOGD("dispatchDeviceReset - eventTime=%lld, deviceId=%d", entry->eventTime, entry->deviceId);
-#endif
-
- CancelationOptions options(CancelationOptions::CANCEL_ALL_EVENTS,
- "device was reset");
- options.deviceId = entry->deviceId;
- synthesizeCancelationEventsForAllConnectionsLocked(options);
- 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;
-
- logOutboundKeyDetailsLocked("dispatchKey - ", entry);
- }
-
- // Handle case where the policy asked us to try again later last time.
- if (entry->interceptKeyResult == KeyEntry::INTERCEPT_KEY_RESULT_TRY_AGAIN_LATER) {
- if (currentTime < entry->interceptKeyWakeupTime) {
- if (entry->interceptKeyWakeupTime < *nextWakeupTime) {
- *nextWakeupTime = entry->interceptKeyWakeupTime;
- }
- return false; // wait until next wakeup
- }
- entry->interceptKeyResult = KeyEntry::INTERCEPT_KEY_RESULT_UNKNOWN;
- entry->interceptKeyWakeupTime = 0;
- }
-
- // 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) {
- setInjectionResultLocked(entry, *dropReason == DROP_REASON_POLICY
- ? INPUT_EVENT_INJECTION_SUCCEEDED : INPUT_EVENT_INJECTION_FAILED);
- return true;
- }
-
- // Identify targets.
- Vector<InputTarget> inputTargets;
- int32_t injectionResult = findFocusedWindowTargetsLocked(currentTime,
- entry, inputTargets, nextWakeupTime);
- if (injectionResult == INPUT_EVENT_INJECTION_PENDING) {
- return false;
- }
-
- setInjectionResultLocked(entry, injectionResult);
- if (injectionResult != INPUT_EVENT_INJECTION_SUCCEEDED) {
- return true;
- }
-
- addMonitoringTargetsLocked(inputTargets);
-
- // Dispatch the key.
- dispatchEventLocked(currentTime, entry, inputTargets);
- return true;
-}
-
-void InputDispatcher::logOutboundKeyDetailsLocked(const char* prefix, const KeyEntry* entry) {
-#if DEBUG_OUTBOUND_EVENT_DETAILS
- ALOGD("%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;
-
- logOutboundMotionDetailsLocked("dispatchMotion - ", entry);
- }
-
- // Clean up if dropping the event.
- if (*dropReason != DROP_REASON_NOT_DROPPED) {
- 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.
- Vector<InputTarget> inputTargets;
-
- bool conflictingPointerActions = false;
- int32_t injectionResult;
- if (isPointerEvent) {
- // Pointer event. (eg. touchscreen)
- injectionResult = findTouchedWindowTargetsLocked(currentTime,
- entry, inputTargets, nextWakeupTime, &conflictingPointerActions);
- } else {
- // Non touch event. (eg. trackball)
- injectionResult = findFocusedWindowTargetsLocked(currentTime,
- entry, inputTargets, nextWakeupTime);
- }
- if (injectionResult == INPUT_EVENT_INJECTION_PENDING) {
- return false;
- }
-
- setInjectionResultLocked(entry, injectionResult);
- if (injectionResult != INPUT_EVENT_INJECTION_SUCCEEDED) {
- return true;
- }
-
- // TODO: support sending secondary display events to input monitors
- if (isMainDisplay(entry->displayId)) {
- addMonitoringTargetsLocked(inputTargets);
- }
-
- // Dispatch the motion.
- if (conflictingPointerActions) {
- CancelationOptions options(CancelationOptions::CANCEL_POINTER_EVENTS,
- "conflicting pointer actions");
- synthesizeCancelationEventsForAllConnectionsLocked(options);
- }
- dispatchEventLocked(currentTime, entry, inputTargets);
- return true;
-}
-
-
-void InputDispatcher::logOutboundMotionDetailsLocked(const char* prefix, const MotionEntry* entry) {
-#if DEBUG_OUTBOUND_EVENT_DETAILS
- ALOGD("%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);
-
- for (uint32_t i = 0; i < entry->pointerCount; i++) {
- ALOGD(" 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,
- entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_X),
- entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_Y),
- entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_PRESSURE),
- entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_SIZE),
- entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR),
- entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR),
- entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR),
- entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR),
- entry->pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION));
- }
-#endif
-}
-
-void InputDispatcher::dispatchEventLocked(nsecs_t currentTime,
- EventEntry* eventEntry, const Vector<InputTarget>& inputTargets) {
-#if DEBUG_DISPATCH_CYCLE
- ALOGD("dispatchEventToCurrentInputTargets");
-#endif
-
- ALOG_ASSERT(eventEntry->dispatchInProgress); // should already have been set to true
-
- pokeUserActivityLocked(eventEntry);
-
- for (size_t i = 0; i < inputTargets.size(); i++) {
- const InputTarget& inputTarget = inputTargets.itemAt(i);
-
- ssize_t connectionIndex = getConnectionIndexLocked(inputTarget.inputChannel);
- if (connectionIndex >= 0) {
- sp<Connection> connection = mConnectionsByFd.valueAt(connectionIndex);
- prepareDispatchCycleLocked(currentTime, connection, eventEntry, &inputTarget);
- } else {
-#if DEBUG_FOCUS
- ALOGD("Dropping event delivery to target with channel '%s' because it "
- "is no longer registered with the input dispatcher.",
- inputTarget.inputChannel->getName().string());
-#endif
- }
- }
-}
-
-int32_t InputDispatcher::handleTargetsNotReadyLocked(nsecs_t currentTime,
- const EventEntry* entry,
- const sp<InputApplicationHandle>& applicationHandle,
- const sp<InputWindowHandle>& windowHandle,
- nsecs_t* nextWakeupTime, const char* reason) {
- if (applicationHandle == NULL && windowHandle == NULL) {
- if (mInputTargetWaitCause != INPUT_TARGET_WAIT_CAUSE_SYSTEM_NOT_READY) {
-#if DEBUG_FOCUS
- ALOGD("Waiting for system to become ready for input. Reason: %s", reason);
-#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
- ALOGD("Waiting for application to become ready for input: %s. Reason: %s",
- getApplicationWindowLabelLocked(applicationHandle, windowHandle).string(),
- reason);
-#endif
- nsecs_t timeout;
- if (windowHandle != NULL) {
- timeout = windowHandle->getDispatchingTimeout(DEFAULT_INPUT_DISPATCHING_TIMEOUT);
- } else if (applicationHandle != NULL) {
- timeout = applicationHandle->getDispatchingTimeout(
- DEFAULT_INPUT_DISPATCHING_TIMEOUT);
- } else {
- timeout = 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, reason);
-
- // 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;
-
- // 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 = mConnectionsByFd.valueAt(connectionIndex);
- sp<InputWindowHandle> windowHandle = connection->inputWindowHandle;
-
- if (windowHandle != NULL) {
- mTouchState.removeWindow(windowHandle);
- }
-
- 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
- ALOGD("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, Vector<InputTarget>& inputTargets, nsecs_t* nextWakeupTime) {
- int32_t injectionResult;
-
- // If there is no currently focused window and no focused application
- // then drop the event.
- if (mFocusedWindowHandle == NULL) {
- if (mFocusedApplicationHandle != NULL) {
- injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
- mFocusedApplicationHandle, NULL, nextWakeupTime,
- "Waiting because no window has focus but there is a "
- "focused application that may eventually add a window "
- "when it finishes starting up.");
- goto Unresponsive;
- }
-
- ALOGI("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->getInfo()->paused) {
- injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
- mFocusedApplicationHandle, mFocusedWindowHandle, nextWakeupTime,
- "Waiting because the focused window is paused.");
- goto Unresponsive;
- }
-
- // If the currently focused window is still working on previous events then keep waiting.
- if (!isWindowReadyForMoreInputLocked(currentTime, mFocusedWindowHandle, entry)) {
- injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
- mFocusedApplicationHandle, mFocusedWindowHandle, nextWakeupTime,
- "Waiting because the focused window has not finished "
- "processing the input events that were previously delivered to it.");
- goto Unresponsive;
- }
-
- // Success! Output targets.
- injectionResult = INPUT_EVENT_INJECTION_SUCCEEDED;
- addWindowTargetLocked(mFocusedWindowHandle,
- InputTarget::FLAG_FOREGROUND | InputTarget::FLAG_DISPATCH_AS_IS, BitSet32(0),
- inputTargets);
-
- // Done.
-Failed:
-Unresponsive:
- nsecs_t timeSpentWaitingForApplication = getTimeSpentWaitingForApplicationLocked(currentTime);
- updateDispatchStatisticsLocked(currentTime, entry,
- injectionResult, timeSpentWaitingForApplication);
-#if DEBUG_FOCUS
- ALOGD("findFocusedWindow finished: injectionResult=%d, "
- "timeSpentWaitingForApplication=%0.1fms",
- injectionResult, timeSpentWaitingForApplication / 1000000.0);
-#endif
- return injectionResult;
-}
-
-int32_t InputDispatcher::findTouchedWindowTargetsLocked(nsecs_t currentTime,
- const MotionEntry* entry, Vector<InputTarget>& inputTargets, nsecs_t* nextWakeupTime,
- bool* outConflictingPointerActions) {
- enum InjectionPermission {
- INJECTION_PERMISSION_UNKNOWN,
- INJECTION_PERMISSION_GRANTED,
- INJECTION_PERMISSION_DENIED
- };
-
- 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 displayId = entry->displayId;
- 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.displayId >= 0
- && (mTouchState.deviceId != entry->deviceId
- || mTouchState.source != entry->source
- || mTouchState.displayId != displayId);
- 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
- ALOGD("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;
- mTempTouchState.displayId = displayId;
- 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. */
-
- int32_t pointerIndex = getMotionEventActionPointerIndex(action);
- int32_t x = int32_t(entry->pointerCoords[pointerIndex].
- getAxisValue(AMOTION_EVENT_AXIS_X));
- int32_t y = int32_t(entry->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);
- const InputWindowInfo* windowInfo = windowHandle->getInfo();
- if (windowInfo->displayId != displayId) {
- continue; // wrong display
- }
-
- int32_t privateFlags = windowInfo->layoutParamsPrivateFlags;
- if (privateFlags & InputWindowInfo::PRIVATE_FLAG_SYSTEM_ERROR) {
- if (topErrorWindowHandle == NULL) {
- topErrorWindowHandle = windowHandle;
- }
- }
-
- int32_t flags = windowInfo->layoutParamsFlags;
- if (windowInfo->visible) {
- if (! (flags & InputWindowInfo::FLAG_NOT_TOUCHABLE)) {
- isTouchModal = (flags & (InputWindowInfo::FLAG_NOT_FOCUSABLE
- | InputWindowInfo::FLAG_NOT_TOUCH_MODAL)) == 0;
- if (isTouchModal || windowInfo->touchableRegionContainsPoint(x, y)) {
- if (! screenWasOff
- || (flags & InputWindowInfo::FLAG_TOUCHABLE_WHEN_WAKING)) {
- newTouchedWindowHandle = windowHandle;
- }
- break; // found touched window, exit window loop
- }
- }
-
- if (maskedAction == AMOTION_EVENT_ACTION_DOWN
- && (flags & InputWindowInfo::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) {
- injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
- NULL, NULL, nextWakeupTime,
- "Waiting because a system error window is about to be displayed.");
- injectionPermission = INJECTION_PERMISSION_UNKNOWN;
- goto Unresponsive;
- }
-
- // Figure out whether splitting will be allowed for this window.
- if (newTouchedWindowHandle != NULL
- && newTouchedWindowHandle->getInfo()->supportsSplitTouch()) {
- // New window supports splitting.
- isSplit = true;
- } else if (isSplit) {
- // New window does not support splitting but we have already split events.
- // Ignore the new window.
- newTouchedWindowHandle = NULL;
- }
-
- // Handle the case where we did not find a window.
- if (newTouchedWindowHandle == NULL) {
- // Try to assign the pointer to the first foreground window we find, if there is one.
- newTouchedWindowHandle = mTempTouchState.getFirstForegroundWindowHandle();
- if (newTouchedWindowHandle == NULL) {
- ALOGI("Dropping event because there is no touchable window at (%d, %d).", x, y);
- 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;
- } 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
- ALOGD("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()) {
- int32_t x = int32_t(entry->pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_X));
- int32_t y = int32_t(entry->pointerCoords[0].getAxisValue(AMOTION_EVENT_AXIS_Y));
-
- sp<InputWindowHandle> oldTouchedWindowHandle =
- mTempTouchState.getFirstForegroundWindowHandle();
- sp<InputWindowHandle> newTouchedWindowHandle =
- findTouchedWindowAtLocked(displayId, x, y);
- if (oldTouchedWindowHandle != newTouchedWindowHandle
- && newTouchedWindowHandle != NULL) {
-#if DEBUG_FOCUS
- ALOGD("Touch is slipping out of window %s into window %s.",
- oldTouchedWindowHandle->getName().string(),
- newTouchedWindowHandle->getName().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->getInfo()->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);
- }
- }
- }
-
- if (newHoverWindowHandle != mLastHoverWindowHandle) {
- // Let the previous window know that the hover sequence is over.
- if (mLastHoverWindowHandle != NULL) {
-#if DEBUG_HOVER
- ALOGD("Sending hover exit event to window %s.",
- mLastHoverWindowHandle->getName().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
- ALOGD("Sending hover enter event to window %s.",
- newHoverWindowHandle->getName().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
- ALOGD("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->getInfo()->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->getInfo()->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->getInfo()->paused) {
- injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
- NULL, touchedWindow.windowHandle, nextWakeupTime,
- "Waiting because the touched window is paused.");
- goto Unresponsive;
- }
-
- // If the touched window is still working on previous events then keep waiting.
- if (!isWindowReadyForMoreInputLocked(currentTime, touchedWindow.windowHandle, entry)) {
- injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
- NULL, touchedWindow.windowHandle, nextWakeupTime,
- "Waiting because the touched window has not finished "
- "processing the input events that were previously delivered to it.");
- 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->getInfo()->hasWallpaper) {
- for (size_t i = 0; i < mWindowHandles.size(); i++) {
- sp<InputWindowHandle> windowHandle = mWindowHandles.itemAt(i);
- const InputWindowInfo* info = windowHandle->getInfo();
- if (info->displayId == displayId
- && windowHandle->getInfo()->layoutParamsType
- == InputWindowInfo::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, inputTargets);
- }
-
- // 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
- ALOGD("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
- ALOGD("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;
- mTouchState.displayId = displayId;
- }
- } 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
- ALOGD("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
- ALOGD("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
- ALOGD("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, Vector<InputTarget>& inputTargets) {
- inputTargets.push();
-
- const InputWindowInfo* windowInfo = windowHandle->getInfo();
- InputTarget& target = inputTargets.editTop();
- target.inputChannel = windowInfo->inputChannel;
- target.flags = targetFlags;
- target.xOffset = - windowInfo->frameLeft;
- target.yOffset = - windowInfo->frameTop;
- target.scaleFactor = windowInfo->scaleFactor;
- target.pointerIds = pointerIds;
-}
-
-void InputDispatcher::addMonitoringTargetsLocked(Vector<InputTarget>& inputTargets) {
- for (size_t i = 0; i < mMonitoringChannels.size(); i++) {
- inputTargets.push();
-
- InputTarget& target = inputTargets.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->getInfo()->ownerUid != injectionState->injectorUid)
- && !hasInjectionPermission(injectionState->injectorPid, injectionState->injectorUid)) {
- if (windowHandle != NULL) {
- ALOGW("Permission denied: injecting event from pid %d uid %d to window %s "
- "owned by uid %d",
- injectionState->injectorPid, injectionState->injectorUid,
- windowHandle->getName().string(),
- windowHandle->getInfo()->ownerUid);
- } else {
- ALOGW("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 {
- int32_t displayId = windowHandle->getInfo()->displayId;
- size_t numWindows = mWindowHandles.size();
- for (size_t i = 0; i < numWindows; i++) {
- sp<InputWindowHandle> otherHandle = mWindowHandles.itemAt(i);
- if (otherHandle == windowHandle) {
- break;
- }
-
- const InputWindowInfo* otherInfo = otherHandle->getInfo();
- if (otherInfo->displayId == displayId
- && otherInfo->visible && !otherInfo->isTrustedOverlay()
- && otherInfo->frameContainsPoint(x, y)) {
- return true;
- }
- }
- return false;
-}
-
-bool InputDispatcher::isWindowReadyForMoreInputLocked(nsecs_t currentTime,
- const sp<InputWindowHandle>& windowHandle, const EventEntry* eventEntry) {
- ssize_t connectionIndex = getConnectionIndexLocked(windowHandle->getInputChannel());
- if (connectionIndex >= 0) {
- sp<Connection> connection = mConnectionsByFd.valueAt(connectionIndex);
- if (connection->inputPublisherBlocked) {
- return false;
- }
- if (eventEntry->type == EventEntry::TYPE_KEY) {
- // If the event is a key event, then we must wait for all previous events to
- // complete before delivering it because previous events may have the
- // side-effect of transferring focus to a different window and we want to
- // ensure that the following keys are sent to the new window.
- //
- // Suppose the user touches a button in a window then immediately presses "A".
- // If the button causes a pop-up window to appear then we want to ensure that
- // the "A" key is delivered to the new pop-up window. This is because users
- // often anticipate pending UI changes when typing on a keyboard.
- // To obtain this behavior, we must serialize key events with respect to all
- // prior input events.
- return connection->outboundQueue.isEmpty()
- && connection->waitQueue.isEmpty();
- }
- // Touch events can always be sent to a window immediately because the user intended
- // to touch whatever was visible at the time. Even if focus changes or a new
- // window appears moments later, the touch event was meant to be delivered to
- // whatever window happened to be on screen at the time.
- //
- // Generic motion events, such as trackball or joystick events are a little trickier.
- // Like key events, generic motion events are delivered to the focused window.
- // Unlike key events, generic motion events don't tend to transfer focus to other
- // windows and it is not important for them to be serialized. So we prefer to deliver
- // generic motion events as soon as possible to improve efficiency and reduce lag
- // through batching.
- //
- // The one case where we pause input event delivery is when the wait queue is piling
- // up with lots of events because the application is not responding.
- // This condition ensures that ANRs are detected reliably.
- if (!connection->waitQueue.isEmpty()
- && currentTime >= connection->waitQueue.head->deliveryTime
- + STREAM_AHEAD_EVENT_TIMEOUT) {
- return false;
- }
- }
- return true;
-}
-
-String8 InputDispatcher::getApplicationWindowLabelLocked(
- const sp<InputApplicationHandle>& applicationHandle,
- const sp<InputWindowHandle>& windowHandle) {
- if (applicationHandle != NULL) {
- if (windowHandle != NULL) {
- String8 label(applicationHandle->getName());
- label.append(" - ");
- label.append(windowHandle->getName());
- return label;
- } else {
- return applicationHandle->getName();
- }
- } else if (windowHandle != NULL) {
- return windowHandle->getName();
- } else {
- return String8("<unknown application or window>");
- }
-}
-
-void InputDispatcher::pokeUserActivityLocked(const EventEntry* eventEntry) {
- if (mFocusedWindowHandle != NULL) {
- const InputWindowInfo* info = mFocusedWindowHandle->getInfo();
- if (info->inputFeatures & InputWindowInfo::INPUT_FEATURE_DISABLE_USER_ACTIVITY) {
-#if DEBUG_DISPATCH_CYCLE
- ALOGD("Not poking user activity: disabled by window '%s'.", info->name.string());
-#endif
- return;
- }
- }
-
- int32_t eventType = USER_ACTIVITY_EVENT_OTHER;
- 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 = USER_ACTIVITY_EVENT_TOUCH;
- }
- break;
- }
- case EventEntry::TYPE_KEY: {
- const KeyEntry* keyEntry = static_cast<const KeyEntry*>(eventEntry);
- if (keyEntry->flags & AKEY_EVENT_FLAG_CANCELED) {
- return;
- }
- eventType = USER_ACTIVITY_EVENT_BUTTON;
- 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) {
-#if DEBUG_DISPATCH_CYCLE
- ALOGD("channel '%s' ~ prepareDispatchCycle - flags=0x%08x, "
- "xOffset=%f, yOffset=%f, scaleFactor=%f, "
- "pointerIds=0x%x",
- connection->getInputChannelName(), inputTarget->flags,
- inputTarget->xOffset, inputTarget->yOffset,
- inputTarget->scaleFactor, inputTarget->pointerIds.value);
-#endif
-
- // 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
- ALOGD("channel '%s' ~ Dropping event because the channel status is %s",
- connection->getInputChannelName(), connection->getStatusLabel());
-#endif
- return;
- }
-
- // Split a motion event if needed.
- if (inputTarget->flags & InputTarget::FLAG_SPLIT) {
- ALOG_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
- ALOGD("channel '%s' ~ Split motion event.",
- connection->getInputChannelName());
- logOutboundMotionDetailsLocked(" ", splitMotionEntry);
-#endif
- enqueueDispatchEntriesLocked(currentTime, connection,
- splitMotionEntry, inputTarget);
- splitMotionEntry->release();
- return;
- }
- }
-
- // Not splitting. Enqueue dispatch entries for the event as is.
- enqueueDispatchEntriesLocked(currentTime, connection, eventEntry, inputTarget);
-}
-
-void InputDispatcher::enqueueDispatchEntriesLocked(nsecs_t currentTime,
- const sp<Connection>& connection, EventEntry* eventEntry, const InputTarget* inputTarget) {
- bool wasEmpty = connection->outboundQueue.isEmpty();
-
- // Enqueue dispatch entries for the requested modes.
- enqueueDispatchEntryLocked(connection, eventEntry, inputTarget,
- InputTarget::FLAG_DISPATCH_AS_HOVER_EXIT);
- enqueueDispatchEntryLocked(connection, eventEntry, inputTarget,
- InputTarget::FLAG_DISPATCH_AS_OUTSIDE);
- enqueueDispatchEntryLocked(connection, eventEntry, inputTarget,
- InputTarget::FLAG_DISPATCH_AS_HOVER_ENTER);
- enqueueDispatchEntryLocked(connection, eventEntry, inputTarget,
- InputTarget::FLAG_DISPATCH_AS_IS);
- enqueueDispatchEntryLocked(connection, eventEntry, inputTarget,
- InputTarget::FLAG_DISPATCH_AS_SLIPPERY_EXIT);
- enqueueDispatchEntryLocked(connection, eventEntry, inputTarget,
- InputTarget::FLAG_DISPATCH_AS_SLIPPERY_ENTER);
-
- // If the outbound queue was previously empty, start the dispatch cycle going.
- if (wasEmpty && !connection->outboundQueue.isEmpty()) {
- startDispatchCycleLocked(currentTime, connection);
- }
-}
-
-void InputDispatcher::enqueueDispatchEntryLocked(
- const sp<Connection>& connection, EventEntry* eventEntry, const InputTarget* inputTarget,
- 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);
-
- // 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
- ALOGD("channel '%s' ~ enqueueDispatchEntryLocked: skipping inconsistent key event",
- connection->getInputChannelName());
-#endif
- delete dispatchEntry;
- 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, motionEntry->displayId)) {
-#if DEBUG_DISPATCH_CYCLE
- ALOGD("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
- ALOGD("channel '%s' ~ enqueueDispatchEntryLocked: skipping inconsistent motion event",
- connection->getInputChannelName());
-#endif
- delete dispatchEntry;
- return; // skip the inconsistent event
- }
- break;
- }
- }
-
- // Remember that we are waiting for this dispatch to complete.
- if (dispatchEntry->hasForegroundTarget()) {
- incrementPendingForegroundDispatchesLocked(eventEntry);
- }
-
- // Enqueue the dispatch entry.
- connection->outboundQueue.enqueueAtTail(dispatchEntry);
- traceOutboundQueueLengthLocked(connection);
-}
-
-void InputDispatcher::startDispatchCycleLocked(nsecs_t currentTime,
- const sp<Connection>& connection) {
-#if DEBUG_DISPATCH_CYCLE
- ALOGD("channel '%s' ~ startDispatchCycle",
- connection->getInputChannelName());
-#endif
-
- while (connection->status == Connection::STATUS_NORMAL
- && !connection->outboundQueue.isEmpty()) {
- DispatchEntry* dispatchEntry = connection->outboundQueue.head;
- dispatchEntry->deliveryTime = currentTime;
-
- // 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(dispatchEntry->seq,
- keyEntry->deviceId, keyEntry->source,
- dispatchEntry->resolvedAction, dispatchEntry->resolvedFlags,
- keyEntry->keyCode, keyEntry->scanCode,
- keyEntry->metaState, keyEntry->repeatCount, keyEntry->downTime,
- keyEntry->eventTime);
- break;
- }
-
- case EventEntry::TYPE_MOTION: {
- MotionEntry* motionEntry = static_cast<MotionEntry*>(eventEntry);
-
- PointerCoords scaledCoords[MAX_POINTERS];
- const PointerCoords* usingCoords = motionEntry->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] = motionEntry->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.
- status = connection->inputPublisher.publishMotionEvent(dispatchEntry->seq,
- motionEntry->deviceId, motionEntry->source,
- dispatchEntry->resolvedAction, dispatchEntry->resolvedFlags,
- motionEntry->edgeFlags, motionEntry->metaState, motionEntry->buttonState,
- xOffset, yOffset,
- motionEntry->xPrecision, motionEntry->yPrecision,
- motionEntry->downTime, motionEntry->eventTime,
- motionEntry->pointerCount, motionEntry->pointerProperties,
- usingCoords);
- break;
- }
-
- default:
- ALOG_ASSERT(false);
- return;
- }
-
- // Check the result.
- if (status) {
- if (status == WOULD_BLOCK) {
- if (connection->waitQueue.isEmpty()) {
- ALOGE("channel '%s' ~ Could not publish event because the pipe is full. "
- "This is unexpected because the wait queue is empty, so the pipe "
- "should be empty and we shouldn't have any problems writing an "
- "event to it, status=%d", connection->getInputChannelName(), status);
- abortBrokenDispatchCycleLocked(currentTime, connection, true /*notify*/);
- } else {
- // Pipe is full and we are waiting for the app to finish process some events
- // before sending more events to it.
-#if DEBUG_DISPATCH_CYCLE
- ALOGD("channel '%s' ~ Could not publish event because the pipe is full, "
- "waiting for the application to catch up",
- connection->getInputChannelName());
-#endif
- connection->inputPublisherBlocked = true;
- }
- } else {
- ALOGE("channel '%s' ~ Could not publish event due to an unexpected error, "
- "status=%d", connection->getInputChannelName(), status);
- abortBrokenDispatchCycleLocked(currentTime, connection, true /*notify*/);
- }
- return;
- }
-
- // Re-enqueue the event on the wait queue.
- connection->outboundQueue.dequeue(dispatchEntry);
- traceOutboundQueueLengthLocked(connection);
- connection->waitQueue.enqueueAtTail(dispatchEntry);
- traceWaitQueueLengthLocked(connection);
- }
-}
-
-void InputDispatcher::finishDispatchCycleLocked(nsecs_t currentTime,
- const sp<Connection>& connection, uint32_t seq, bool handled) {
-#if DEBUG_DISPATCH_CYCLE
- ALOGD("channel '%s' ~ finishDispatchCycle - seq=%u, handled=%s",
- connection->getInputChannelName(), seq, toString(handled));
-#endif
-
- connection->inputPublisherBlocked = false;
-
- if (connection->status == Connection::STATUS_BROKEN
- || connection->status == Connection::STATUS_ZOMBIE) {
- return;
- }
-
- // Notify other system components and prepare to start the next dispatch cycle.
- onDispatchCycleFinishedLocked(currentTime, connection, seq, handled);
-}
-
-void InputDispatcher::abortBrokenDispatchCycleLocked(nsecs_t currentTime,
- const sp<Connection>& connection, bool notify) {
-#if DEBUG_DISPATCH_CYCLE
- ALOGD("channel '%s' ~ abortBrokenDispatchCycle - notify=%s",
- connection->getInputChannelName(), toString(notify));
-#endif
-
- // Clear the dispatch queues.
- drainDispatchQueueLocked(&connection->outboundQueue);
- traceOutboundQueueLengthLocked(connection);
- drainDispatchQueueLocked(&connection->waitQueue);
- traceWaitQueueLengthLocked(connection);
-
- // The connection appears to be unrecoverably broken.
- // Ignore already broken or zombie connections.
- if (connection->status == Connection::STATUS_NORMAL) {
- connection->status = Connection::STATUS_BROKEN;
-
- if (notify) {
- // Notify other system components.
- onDispatchCycleBrokenLocked(currentTime, connection);
- }
- }
-}
-
-void InputDispatcher::drainDispatchQueueLocked(Queue<DispatchEntry>* queue) {
- while (!queue->isEmpty()) {
- DispatchEntry* dispatchEntry = queue->dequeueAtHead();
- releaseDispatchEntryLocked(dispatchEntry);
- }
-}
-
-void InputDispatcher::releaseDispatchEntryLocked(DispatchEntry* dispatchEntry) {
- if (dispatchEntry->hasForegroundTarget()) {
- decrementPendingForegroundDispatchesLocked(dispatchEntry->eventEntry);
- }
- delete dispatchEntry;
-}
-
-int InputDispatcher::handleReceiveCallback(int fd, int events, void* data) {
- InputDispatcher* d = static_cast<InputDispatcher*>(data);
-
- { // acquire lock
- AutoMutex _l(d->mLock);
-
- ssize_t connectionIndex = d->mConnectionsByFd.indexOfKey(fd);
- if (connectionIndex < 0) {
- ALOGE("Received spurious receive callback for unknown input channel. "
- "fd=%d, events=0x%x", fd, events);
- return 0; // remove the callback
- }
-
- bool notify;
- sp<Connection> connection = d->mConnectionsByFd.valueAt(connectionIndex);
- if (!(events & (ALOOPER_EVENT_ERROR | ALOOPER_EVENT_HANGUP))) {
- if (!(events & ALOOPER_EVENT_INPUT)) {
- ALOGW("channel '%s' ~ Received spurious callback for unhandled poll event. "
- "events=0x%x", connection->getInputChannelName(), events);
- return 1;
- }
-
- nsecs_t currentTime = now();
- bool gotOne = false;
- status_t status;
- for (;;) {
- uint32_t seq;
- bool handled;
- status = connection->inputPublisher.receiveFinishedSignal(&seq, &handled);
- if (status) {
- break;
- }
- d->finishDispatchCycleLocked(currentTime, connection, seq, handled);
- gotOne = true;
- }
- if (gotOne) {
- d->runCommandsLockedInterruptible();
- if (status == WOULD_BLOCK) {
- return 1;
- }
- }
-
- notify = status != DEAD_OBJECT || !connection->monitor;
- if (notify) {
- ALOGE("channel '%s' ~ Failed to receive finished signal. status=%d",
- connection->getInputChannelName(), status);
- }
- } else {
- // Monitor channels are never explicitly unregistered.
- // We do it automatically when the remote endpoint is closed so don't warn
- // about them.
- notify = !connection->monitor;
- if (notify) {
- ALOGW("channel '%s' ~ Consumer closed input channel or an error occurred. "
- "events=0x%x", connection->getInputChannelName(), events);
- }
- }
-
- // Unregister the channel.
- d->unregisterInputChannelLocked(connection->inputChannel, notify);
- return 0; // remove the callback
- } // release lock
-}
-
-void InputDispatcher::synthesizeCancelationEventsForAllConnectionsLocked(
- const CancelationOptions& options) {
- for (size_t i = 0; i < mConnectionsByFd.size(); i++) {
- synthesizeCancelationEventsForConnectionLocked(
- mConnectionsByFd.valueAt(i), options);
- }
-}
-
-void InputDispatcher::synthesizeCancelationEventsForInputChannelLocked(
- const sp<InputChannel>& channel, const CancelationOptions& options) {
- ssize_t index = getConnectionIndexLocked(channel);
- if (index >= 0) {
- synthesizeCancelationEventsForConnectionLocked(
- mConnectionsByFd.valueAt(index), options);
- }
-}
-
-void InputDispatcher::synthesizeCancelationEventsForConnectionLocked(
- const sp<Connection>& connection, const CancelationOptions& options) {
- if (connection->status == Connection::STATUS_BROKEN) {
- return;
- }
-
- nsecs_t currentTime = now();
-
- Vector<EventEntry*> cancelationEvents;
- connection->inputState.synthesizeCancelationEvents(currentTime,
- cancelationEvents, options);
-
- if (!cancelationEvents.isEmpty()) {
-#if DEBUG_OUTBOUND_EVENT_DETAILS
- ALOGD("channel '%s' ~ Synthesized %d cancelation events to bring channel back in sync "
- "with reality: %s, mode=%d.",
- connection->getInputChannelName(), cancelationEvents.size(),
- options.reason, options.mode);
-#endif
- for (size_t i = 0; i < cancelationEvents.size(); i++) {
- EventEntry* cancelationEventEntry = cancelationEvents.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) {
- const InputWindowInfo* windowInfo = windowHandle->getInfo();
- target.xOffset = -windowInfo->frameLeft;
- target.yOffset = -windowInfo->frameTop;
- target.scaleFactor = windowInfo->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, InputTarget::FLAG_DISPATCH_AS_IS);
-
- cancelationEventEntry->release();
- }
-
- startDispatchCycleLocked(currentTime, connection);
- }
-}
-
-InputDispatcher::MotionEntry*
-InputDispatcher::splitMotionEvent(const MotionEntry* originalMotionEntry, BitSet32 pointerIds) {
- ALOG_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->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.
- ALOGW("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,
- originalMotionEntry->displayId,
- splitPointerCount, splitPointerProperties, 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
- ALOGD("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
- ALOGD("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 (shouldSendKeyToInputFilterLocked(args)) {
- 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();
- }
-}
-
-bool InputDispatcher::shouldSendKeyToInputFilterLocked(const NotifyKeyArgs* args) {
- return mInputFilterEnabled;
-}
-
-void InputDispatcher::notifyMotion(const NotifyMotionArgs* args) {
-#if DEBUG_INBOUND_EVENT_DETAILS
- ALOGD("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++) {
- ALOGD(" 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 (shouldSendMotionToInputFilterLocked(args)) {
- 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();
- }
-
- // 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->displayId,
- args->pointerCount, args->pointerProperties, args->pointerCoords);
-
- needWake = enqueueInboundEventLocked(newEntry);
- mLock.unlock();
- } // release lock
-
- if (needWake) {
- mLooper->wake();
- }
-}
-
-bool InputDispatcher::shouldSendMotionToInputFilterLocked(const NotifyMotionArgs* args) {
- // TODO: support sending secondary display events to input filter
- return mInputFilterEnabled && isMainDisplay(args->displayId);
-}
-
-void InputDispatcher::notifySwitch(const NotifySwitchArgs* args) {
-#if DEBUG_INBOUND_EVENT_DETAILS
- ALOGD("notifySwitch - eventTime=%lld, policyFlags=0x%x, switchValues=0x%08x, switchMask=0x%08x",
- args->eventTime, args->policyFlags,
- args->switchValues, args->switchMask);
-#endif
-
- uint32_t policyFlags = args->policyFlags;
- policyFlags |= POLICY_FLAG_TRUSTED;
- mPolicy->notifySwitch(args->eventTime,
- args->switchValues, args->switchMask, policyFlags);
-}
-
-void InputDispatcher::notifyDeviceReset(const NotifyDeviceResetArgs* args) {
-#if DEBUG_INBOUND_EVENT_DETAILS
- ALOGD("notifyDeviceReset - eventTime=%lld, deviceId=%d",
- args->eventTime, args->deviceId);
-#endif
-
- bool needWake;
- { // acquire lock
- AutoMutex _l(mLock);
-
- DeviceResetEntry* newEntry = new DeviceResetEntry(args->eventTime, args->deviceId);
- needWake = enqueueInboundEventLocked(newEntry);
- } // release lock
-
- if (needWake) {
- mLooper->wake();
- }
-}
-
-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
- ALOGD("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* firstInjectedEntry;
- EventEntry* lastInjectedEntry;
- 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();
- firstInjectedEntry = new KeyEntry(keyEvent->getEventTime(),
- keyEvent->getDeviceId(), keyEvent->getSource(),
- policyFlags, action, flags,
- keyEvent->getKeyCode(), keyEvent->getScanCode(), keyEvent->getMetaState(),
- keyEvent->getRepeatCount(), keyEvent->getDownTime());
- lastInjectedEntry = firstInjectedEntry;
- break;
- }
-
- case AINPUT_EVENT_TYPE_MOTION: {
- const MotionEvent* motionEvent = static_cast<const MotionEvent*>(event);
- int32_t displayId = ADISPLAY_ID_DEFAULT;
- 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();
- firstInjectedEntry = new MotionEntry(*sampleEventTimes,
- motionEvent->getDeviceId(), motionEvent->getSource(), policyFlags,
- action, motionEvent->getFlags(),
- motionEvent->getMetaState(), motionEvent->getButtonState(),
- motionEvent->getEdgeFlags(),
- motionEvent->getXPrecision(), motionEvent->getYPrecision(),
- motionEvent->getDownTime(), displayId,
- uint32_t(pointerCount), pointerProperties, samplePointerCoords);
- lastInjectedEntry = firstInjectedEntry;
- for (size_t i = motionEvent->getHistorySize(); i > 0; i--) {
- sampleEventTimes += 1;
- samplePointerCoords += pointerCount;
- MotionEntry* nextInjectedEntry = new MotionEntry(*sampleEventTimes,
- motionEvent->getDeviceId(), motionEvent->getSource(), policyFlags,
- action, motionEvent->getFlags(),
- motionEvent->getMetaState(), motionEvent->getButtonState(),
- motionEvent->getEdgeFlags(),
- motionEvent->getXPrecision(), motionEvent->getYPrecision(),
- motionEvent->getDownTime(), displayId,
- uint32_t(pointerCount), pointerProperties, samplePointerCoords);
- lastInjectedEntry->next = nextInjectedEntry;
- lastInjectedEntry = nextInjectedEntry;
- }
- break;
- }
-
- default:
- ALOGW("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;
- lastInjectedEntry->injectionState = injectionState;
-
- bool needWake = false;
- for (EventEntry* entry = firstInjectedEntry; entry != NULL; ) {
- EventEntry* nextEntry = entry->next;
- needWake |= enqueueInboundEventLocked(entry);
- entry = nextEntry;
- }
-
- 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
- ALOGD("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
- ALOGD("injectInputEvent - Waiting for %d pending foreground dispatches.",
- injectionState->pendingForegroundDispatches);
-#endif
- nsecs_t remainingTimeout = endTime - now();
- if (remainingTimeout <= 0) {
-#if DEBUG_INJECTION
- ALOGD("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
- ALOGD("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
- ALOGD("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:
- ALOGV("Asynchronous input event injection succeeded.");
- break;
- case INPUT_EVENT_INJECTION_FAILED:
- ALOGW("Asynchronous input event injection failed.");
- break;
- case INPUT_EVENT_INJECTION_PERMISSION_DENIED:
- ALOGW("Asynchronous input event injection permission denied.");
- break;
- case INPUT_EVENT_INJECTION_TIMED_OUT:
- ALOGW("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->getInputChannel() == 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
- ALOGD("setInputWindows");
-#endif
- { // acquire lock
- AutoMutex _l(mLock);
-
- Vector<sp<InputWindowHandle> > oldWindowHandles = mWindowHandles;
- 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->updateInfo() || windowHandle->getInputChannel() == NULL) {
- mWindowHandles.removeAt(i--);
- continue;
- }
- if (windowHandle->getInfo()->hasFocus) {
- newFocusedWindowHandle = windowHandle;
- }
- if (windowHandle == mLastHoverWindowHandle) {
- foundHoveredWindow = true;
- }
- }
-
- if (!foundHoveredWindow) {
- mLastHoverWindowHandle = NULL;
- }
-
- if (mFocusedWindowHandle != newFocusedWindowHandle) {
- if (mFocusedWindowHandle != NULL) {
-#if DEBUG_FOCUS
- ALOGD("Focus left window: %s",
- mFocusedWindowHandle->getName().string());
-#endif
- sp<InputChannel> focusedInputChannel = mFocusedWindowHandle->getInputChannel();
- if (focusedInputChannel != NULL) {
- CancelationOptions options(CancelationOptions::CANCEL_NON_POINTER_EVENTS,
- "focus left window");
- synthesizeCancelationEventsForInputChannelLocked(
- focusedInputChannel, options);
- }
- }
- if (newFocusedWindowHandle != NULL) {
-#if DEBUG_FOCUS
- ALOGD("Focus entered window: %s",
- newFocusedWindowHandle->getName().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
- ALOGD("Touched window was removed: %s",
- touchedWindow.windowHandle->getName().string());
-#endif
- sp<InputChannel> touchedInputChannel =
- touchedWindow.windowHandle->getInputChannel();
- if (touchedInputChannel != NULL) {
- CancelationOptions options(CancelationOptions::CANCEL_POINTER_EVENTS,
- "touched window was removed");
- synthesizeCancelationEventsForInputChannelLocked(
- touchedInputChannel, options);
- }
- mTouchState.windows.removeAt(i--);
- }
- }
-
- // Release information for windows that are no longer present.
- // This ensures that unused input channels are released promptly.
- // Otherwise, they might stick around until the window handle is destroyed
- // which might not happen until the next GC.
- for (size_t i = 0; i < oldWindowHandles.size(); i++) {
- const sp<InputWindowHandle>& oldWindowHandle = oldWindowHandles.itemAt(i);
- if (!hasWindowHandleLocked(oldWindowHandle)) {
-#if DEBUG_FOCUS
- ALOGD("Window went away: %s", oldWindowHandle->getName().string());
-#endif
- oldWindowHandle->releaseInfo();
- }
- }
- } // 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
- ALOGD("setFocusedApplication");
-#endif
- { // acquire lock
- AutoMutex _l(mLock);
-
- if (inputApplicationHandle != NULL && inputApplicationHandle->updateInfo()) {
- if (mFocusedApplicationHandle != inputApplicationHandle) {
- if (mFocusedApplicationHandle != NULL) {
- resetANRTimeoutsLocked();
- mFocusedApplicationHandle->releaseInfo();
- }
- mFocusedApplicationHandle = inputApplicationHandle;
- }
- } else if (mFocusedApplicationHandle != NULL) {
- resetANRTimeoutsLocked();
- mFocusedApplicationHandle->releaseInfo();
- 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
- ALOGD("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
- ALOGD("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
- ALOGD("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
- ALOGD("Cannot transfer focus because from or to window not found.");
-#endif
- return false;
- }
- if (fromWindowHandle == toWindowHandle) {
-#if DEBUG_FOCUS
- ALOGD("Trivial transfer to same window.");
-#endif
- return true;
- }
- if (fromWindowHandle->getInfo()->displayId != toWindowHandle->getInfo()->displayId) {
-#if DEBUG_FOCUS
- ALOGD("Cannot transfer focus because windows are on different displays.");
-#endif
- return false;
- }
-
- 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
- ALOGD("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 = mConnectionsByFd.valueAt(fromConnectionIndex);
- sp<Connection> toConnection = mConnectionsByFd.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
- ALOGD("Resetting and dropping all events (%s).", reason);
-#endif
-
- CancelationOptions options(CancelationOptions::CANCEL_ALL_EVENTS, reason);
- synthesizeCancelationEventsForAllConnectionsLocked(options);
-
- resetKeyRepeatLocked();
- releasePendingEventLocked();
- drainInboundQueueLocked();
- resetANRTimeoutsLocked();
-
- 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';
- }
- ALOGD("%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->getName().string(),
- mFocusedApplicationHandle->getDispatchingTimeout(
- DEFAULT_INPUT_DISPATCHING_TIMEOUT) / 1000000.0);
- } else {
- dump.append(INDENT "FocusedApplication: <null>\n");
- }
- dump.appendFormat(INDENT "FocusedWindow: name='%s'\n",
- mFocusedWindowHandle != NULL ? mFocusedWindowHandle->getName().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);
- dump.appendFormat(INDENT "TouchDisplayId: %d\n", mTouchState.displayId);
- 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->getName().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);
- const InputWindowInfo* windowInfo = windowHandle->getInfo();
-
- dump.appendFormat(INDENT2 "%d: name='%s', displayId=%d, "
- "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, windowInfo->name.string(), windowInfo->displayId,
- toString(windowInfo->paused),
- toString(windowInfo->hasFocus),
- toString(windowInfo->hasWallpaper),
- toString(windowInfo->visible),
- toString(windowInfo->canReceiveKeys),
- windowInfo->layoutParamsFlags, windowInfo->layoutParamsType,
- windowInfo->layer,
- windowInfo->frameLeft, windowInfo->frameTop,
- windowInfo->frameRight, windowInfo->frameBottom,
- windowInfo->scaleFactor);
- dumpRegion(dump, windowInfo->touchableRegion);
- dump.appendFormat(", inputFeatures=0x%08x", windowInfo->inputFeatures);
- dump.appendFormat(", ownerPid=%d, ownerUid=%d, dispatchingTimeout=%0.3fms\n",
- windowInfo->ownerPid, windowInfo->ownerUid,
- windowInfo->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");
- }
-
- nsecs_t currentTime = now();
-
- // Dump recently dispatched or dropped events from oldest to newest.
- if (!mRecentQueue.isEmpty()) {
- dump.appendFormat(INDENT "RecentQueue: length=%u\n", mRecentQueue.count());
- for (EventEntry* entry = mRecentQueue.head; entry; entry = entry->next) {
- dump.append(INDENT2);
- entry->appendDescription(dump);
- dump.appendFormat(", age=%0.1fms\n",
- (currentTime - entry->eventTime) * 0.000001f);
- }
- } else {
- dump.append(INDENT "RecentQueue: <empty>\n");
- }
-
- // Dump event currently being dispatched.
- if (mPendingEvent) {
- dump.append(INDENT "PendingEvent:\n");
- dump.append(INDENT2);
- mPendingEvent->appendDescription(dump);
- dump.appendFormat(", age=%0.1fms\n",
- (currentTime - mPendingEvent->eventTime) * 0.000001f);
- } else {
- dump.append(INDENT "PendingEvent: <none>\n");
- }
-
- // Dump inbound events from oldest to newest.
- if (!mInboundQueue.isEmpty()) {
- dump.appendFormat(INDENT "InboundQueue: length=%u\n", mInboundQueue.count());
- for (EventEntry* entry = mInboundQueue.head; entry; entry = entry->next) {
- dump.append(INDENT2);
- entry->appendDescription(dump);
- dump.appendFormat(", age=%0.1fms\n",
- (currentTime - entry->eventTime) * 0.000001f);
- }
- } else {
- dump.append(INDENT "InboundQueue: <empty>\n");
- }
-
- if (!mConnectionsByFd.isEmpty()) {
- dump.append(INDENT "Connections:\n");
- for (size_t i = 0; i < mConnectionsByFd.size(); i++) {
- const sp<Connection>& connection = mConnectionsByFd.valueAt(i);
- dump.appendFormat(INDENT2 "%d: channelName='%s', windowName='%s', "
- "status=%s, monitor=%s, inputPublisherBlocked=%s\n",
- i, connection->getInputChannelName(), connection->getWindowName(),
- connection->getStatusLabel(), toString(connection->monitor),
- toString(connection->inputPublisherBlocked));
-
- if (!connection->outboundQueue.isEmpty()) {
- dump.appendFormat(INDENT3 "OutboundQueue: length=%u\n",
- connection->outboundQueue.count());
- for (DispatchEntry* entry = connection->outboundQueue.head; entry;
- entry = entry->next) {
- dump.append(INDENT4);
- entry->eventEntry->appendDescription(dump);
- dump.appendFormat(", targetFlags=0x%08x, resolvedAction=%d, age=%0.1fms\n",
- entry->targetFlags, entry->resolvedAction,
- (currentTime - entry->eventEntry->eventTime) * 0.000001f);
- }
- } else {
- dump.append(INDENT3 "OutboundQueue: <empty>\n");
- }
-
- if (!connection->waitQueue.isEmpty()) {
- dump.appendFormat(INDENT3 "WaitQueue: length=%u\n",
- connection->waitQueue.count());
- for (DispatchEntry* entry = connection->waitQueue.head; entry;
- entry = entry->next) {
- dump.append(INDENT4);
- entry->eventEntry->appendDescription(dump);
- dump.appendFormat(", targetFlags=0x%08x, resolvedAction=%d, "
- "age=%0.1fms, wait=%0.1fms\n",
- entry->targetFlags, entry->resolvedAction,
- (currentTime - entry->eventEntry->eventTime) * 0.000001f,
- (currentTime - entry->deliveryTime) * 0.000001f);
- }
- } else {
- dump.append(INDENT3 "WaitQueue: <empty>\n");
- }
- }
- } else {
- dump.append(INDENT "Connections: <none>\n");
- }
-
- if (isAppSwitchPendingLocked()) {
- dump.appendFormat(INDENT "AppSwitch: pending, due in %0.1fms\n",
- (mAppSwitchDueTime - now()) / 1000000.0);
- } else {
- dump.append(INDENT "AppSwitch: not pending\n");
- }
-
- dump.append(INDENT "Configuration:\n");
- dump.appendFormat(INDENT2 "KeyRepeatDelay: %0.1fms\n",
- mConfig.keyRepeatDelay * 0.000001f);
- dump.appendFormat(INDENT2 "KeyRepeatTimeout: %0.1fms\n",
- mConfig.keyRepeatTimeout * 0.000001f);
-}
-
-status_t InputDispatcher::registerInputChannel(const sp<InputChannel>& inputChannel,
- const sp<InputWindowHandle>& inputWindowHandle, bool monitor) {
-#if DEBUG_REGISTRATION
- ALOGD("channel '%s' ~ registerInputChannel - monitor=%s", inputChannel->getName().string(),
- toString(monitor));
-#endif
-
- { // acquire lock
- AutoMutex _l(mLock);
-
- if (getConnectionIndexLocked(inputChannel) >= 0) {
- ALOGW("Attempted to register already registered input channel '%s'",
- inputChannel->getName().string());
- return BAD_VALUE;
- }
-
- sp<Connection> connection = new Connection(inputChannel, inputWindowHandle, monitor);
-
- int fd = inputChannel->getFd();
- mConnectionsByFd.add(fd, connection);
-
- if (monitor) {
- mMonitoringChannels.push(inputChannel);
- }
-
- mLooper->addFd(fd, 0, ALOOPER_EVENT_INPUT, handleReceiveCallback, this);
- } // release lock
-
- // Wake the looper because some connections have changed.
- mLooper->wake();
- return OK;
-}
-
-status_t InputDispatcher::unregisterInputChannel(const sp<InputChannel>& inputChannel) {
-#if DEBUG_REGISTRATION
- ALOGD("channel '%s' ~ unregisterInputChannel", inputChannel->getName().string());
-#endif
-
- { // acquire lock
- AutoMutex _l(mLock);
-
- status_t status = unregisterInputChannelLocked(inputChannel, false /*notify*/);
- if (status) {
- return status;
- }
- } // release lock
-
- // Wake the poll loop because removing the connection may have changed the current
- // synchronization state.
- mLooper->wake();
- return OK;
-}
-
-status_t InputDispatcher::unregisterInputChannelLocked(const sp<InputChannel>& inputChannel,
- bool notify) {
- ssize_t connectionIndex = getConnectionIndexLocked(inputChannel);
- if (connectionIndex < 0) {
- ALOGW("Attempted to unregister already unregistered input channel '%s'",
- inputChannel->getName().string());
- return BAD_VALUE;
- }
-
- sp<Connection> connection = mConnectionsByFd.valueAt(connectionIndex);
- mConnectionsByFd.removeItemsAt(connectionIndex);
-
- if (connection->monitor) {
- removeMonitorChannelLocked(inputChannel);
- }
-
- mLooper->removeFd(inputChannel->getFd());
-
- nsecs_t currentTime = now();
- abortBrokenDispatchCycleLocked(currentTime, connection, notify);
-
- connection->status = Connection::STATUS_ZOMBIE;
- return OK;
-}
-
-void InputDispatcher::removeMonitorChannelLocked(const sp<InputChannel>& inputChannel) {
- for (size_t i = 0; i < mMonitoringChannels.size(); i++) {
- if (mMonitoringChannels[i] == inputChannel) {
- mMonitoringChannels.removeAt(i);
- break;
- }
- }
-}
-
-ssize_t InputDispatcher::getConnectionIndexLocked(const sp<InputChannel>& inputChannel) {
- ssize_t connectionIndex = mConnectionsByFd.indexOfKey(inputChannel->getFd());
- if (connectionIndex >= 0) {
- sp<Connection> connection = mConnectionsByFd.valueAt(connectionIndex);
- if (connection->inputChannel.get() == inputChannel.get()) {
- return connectionIndex;
- }
- }
-
- return -1;
-}
-
-void InputDispatcher::onDispatchCycleFinishedLocked(
- nsecs_t currentTime, const sp<Connection>& connection, uint32_t seq, bool handled) {
- CommandEntry* commandEntry = postCommandLocked(
- & InputDispatcher::doDispatchCycleFinishedLockedInterruptible);
- commandEntry->connection = connection;
- commandEntry->eventTime = currentTime;
- commandEntry->seq = seq;
- commandEntry->handled = handled;
-}
-
-void InputDispatcher::onDispatchCycleBrokenLocked(
- nsecs_t currentTime, const sp<Connection>& connection) {
- ALOGE("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, const char* reason) {
- float dispatchLatency = (currentTime - eventTime) * 0.000001f;
- float waitDuration = (currentTime - waitStartTime) * 0.000001f;
- ALOGI("Application is not responding: %s. "
- "It has been %0.1fms since event, %0.1fms since wait started. Reason: %s",
- getApplicationWindowLabelLocked(applicationHandle, windowHandle).string(),
- dispatchLatency, waitDuration, reason);
-
- // Capture a record of the InputDispatcher state at the time of the ANR.
- time_t t = time(NULL);
- struct tm tm;
- localtime_r(&t, &tm);
- char timestr[64];
- strftime(timestr, sizeof(timestr), "%F %T", &tm);
- mLastANRState.clear();
- mLastANRState.append(INDENT "ANR:\n");
- mLastANRState.appendFormat(INDENT2 "Time: %s\n", timestr);
- mLastANRState.appendFormat(INDENT2 "Window: %s\n",
- getApplicationWindowLabelLocked(applicationHandle, windowHandle).string());
- mLastANRState.appendFormat(INDENT2 "DispatchLatency: %0.1fms\n", dispatchLatency);
- mLastANRState.appendFormat(INDENT2 "WaitDuration: %0.1fms\n", waitDuration);
- mLastANRState.appendFormat(INDENT2 "Reason: %s\n", reason);
- dumpDispatchStateLocked(mLastANRState);
-
- CommandEntry* commandEntry = postCommandLocked(
- & InputDispatcher::doNotifyANRLockedInterruptible);
- commandEntry->inputApplicationHandle = applicationHandle;
- commandEntry->inputWindowHandle = windowHandle;
- commandEntry->reason = reason;
-}
-
-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,
- commandEntry->reason);
-
- mLock.lock();
-
- resumeAfterTargetsNotReadyTimeoutLocked(newTimeout,
- commandEntry->inputWindowHandle != NULL
- ? commandEntry->inputWindowHandle->getInputChannel() : NULL);
-}
-
-void InputDispatcher::doInterceptKeyBeforeDispatchingLockedInterruptible(
- CommandEntry* commandEntry) {
- KeyEntry* entry = commandEntry->keyEntry;
-
- KeyEvent event;
- initializeKeyEvent(&event, entry);
-
- mLock.unlock();
-
- nsecs_t delay = mPolicy->interceptKeyBeforeDispatching(commandEntry->inputWindowHandle,
- &event, entry->policyFlags);
-
- mLock.lock();
-
- if (delay < 0) {
- entry->interceptKeyResult = KeyEntry::INTERCEPT_KEY_RESULT_SKIP;
- } else if (!delay) {
- entry->interceptKeyResult = KeyEntry::INTERCEPT_KEY_RESULT_CONTINUE;
- } else {
- entry->interceptKeyResult = KeyEntry::INTERCEPT_KEY_RESULT_TRY_AGAIN_LATER;
- entry->interceptKeyWakeupTime = now() + delay;
- }
- entry->release();
-}
-
-void InputDispatcher::doDispatchCycleFinishedLockedInterruptible(
- CommandEntry* commandEntry) {
- sp<Connection> connection = commandEntry->connection;
- nsecs_t finishTime = commandEntry->eventTime;
- uint32_t seq = commandEntry->seq;
- bool handled = commandEntry->handled;
-
- // Handle post-event policy actions.
- DispatchEntry* dispatchEntry = connection->findWaitQueueEntry(seq);
- if (dispatchEntry) {
- nsecs_t eventDuration = finishTime - dispatchEntry->deliveryTime;
- if (eventDuration > SLOW_EVENT_PROCESSING_WARNING_TIMEOUT) {
- String8 msg;
- msg.appendFormat("Window '%s' spent %0.1fms processing the last input event: ",
- connection->getWindowName(), eventDuration * 0.000001f);
- dispatchEntry->eventEntry->appendDescription(msg);
- ALOGI("%s", msg.string());
- }
-
- bool restartEvent;
- if (dispatchEntry->eventEntry->type == EventEntry::TYPE_KEY) {
- KeyEntry* keyEntry = static_cast<KeyEntry*>(dispatchEntry->eventEntry);
- restartEvent = afterKeyEventLockedInterruptible(connection,
- dispatchEntry, keyEntry, handled);
- } else if (dispatchEntry->eventEntry->type == EventEntry::TYPE_MOTION) {
- MotionEntry* motionEntry = static_cast<MotionEntry*>(dispatchEntry->eventEntry);
- restartEvent = afterMotionEventLockedInterruptible(connection,
- dispatchEntry, motionEntry, handled);
- } else {
- restartEvent = false;
- }
-
- // Dequeue the event and start the next cycle.
- // Note that because the lock might have been released, it is possible that the
- // contents of the wait queue to have been drained, so we need to double-check
- // a few things.
- if (dispatchEntry == connection->findWaitQueueEntry(seq)) {
- connection->waitQueue.dequeue(dispatchEntry);
- traceWaitQueueLengthLocked(connection);
- if (restartEvent && connection->status == Connection::STATUS_NORMAL) {
- connection->outboundQueue.enqueueAtHead(dispatchEntry);
- traceOutboundQueueLengthLocked(connection);
- } else {
- releaseDispatchEntryLocked(dispatchEntry);
- }
- }
-
- // Start the next dispatch cycle for this connection.
- startDispatchCycleLocked(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) {
- // Dispatch the unhandled key to the policy with the cancel flag.
-#if DEBUG_OUTBOUND_EVENT_DETAILS
- ALOGD("Unhandled key event: Asking policy to cancel fallback action. "
- "keyCode=%d, action=%d, repeatCount=%d, policyFlags=0x%08x",
- keyEntry->keyCode, keyEntry->action, keyEntry->repeatCount,
- keyEntry->policyFlags);
-#endif
- KeyEvent event;
- initializeKeyEvent(&event, keyEntry);
- event.setFlags(event.getFlags() | AKEY_EVENT_FLAG_CANCELED);
-
- mLock.unlock();
-
- mPolicy->dispatchUnhandledKey(connection->inputWindowHandle,
- &event, keyEntry->policyFlags, &event);
-
- mLock.lock();
-
- // Cancel the fallback key.
- 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
- ALOGD("Unhandled key event: Skipping unhandled key event processing "
- "since this is not an initial down. "
- "keyCode=%d, action=%d, repeatCount=%d, policyFlags=0x%08x",
- originalKeyCode, keyEntry->action, keyEntry->repeatCount,
- keyEntry->policyFlags);
-#endif
- return false;
- }
-
- // Dispatch the unhandled key to the policy.
-#if DEBUG_OUTBOUND_EVENT_DETAILS
- ALOGD("Unhandled key event: Asking policy to perform fallback action. "
- "keyCode=%d, action=%d, repeatCount=%d, policyFlags=0x%08x",
- keyEntry->keyCode, keyEntry->action, keyEntry->repeatCount,
- keyEntry->policyFlags);
-#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 false;
- }
-
- // 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);
- }
-
- ALOG_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) {
- ALOGD("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 {
- ALOGD("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));
- }
- ALOGD("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
- ALOGD("Unhandled key event: Dispatching fallback key. "
- "originalKeyCode=%d, fallbackKeyCode=%d, fallbackMetaState=%08x",
- originalKeyCode, fallbackKeyCode, keyEntry->metaState);
-#endif
- return true; // restart the event
- } else {
-#if DEBUG_OUTBOUND_EVENT_DETAILS
- ALOGD("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::traceInboundQueueLengthLocked() {
- if (ATRACE_ENABLED()) {
- ATRACE_INT("iq", mInboundQueue.count());
- }
-}
-
-void InputDispatcher::traceOutboundQueueLengthLocked(const sp<Connection>& connection) {
- if (ATRACE_ENABLED()) {
- char counterName[40];
- snprintf(counterName, sizeof(counterName), "oq:%s", connection->getWindowName());
- ATRACE_INT(counterName, connection->outboundQueue.count());
- }
-}
-
-void InputDispatcher::traceWaitQueueLengthLocked(const sp<Connection>& connection) {
- if (ATRACE_ENABLED()) {
- char counterName[40];
- snprintf(counterName, sizeof(counterName), "wq:%s", connection->getWindowName());
- ATRACE_INT(counterName, connection->waitQueue.count());
- }
-}
-
-void InputDispatcher::dump(String8& dump) {
- AutoMutex _l(mLock);
-
- dump.append("Input Dispatcher State:\n");
- dumpDispatchStateLocked(dump);
-
- if (!mLastANRState.isEmpty()) {
- dump.append("\nInput Dispatcher State at time of last ANR:\n");
- dump.append(mLastANRState);
- }
-}
-
-void InputDispatcher::monitor() {
- // Acquire and release the lock to ensure that the dispatcher has not deadlocked.
- mLock.lock();
- mLooper->wake();
- mDispatcherIsAliveCondition.wait(mLock);
- mLock.unlock();
-}
-
-
-// --- 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 {
- ALOG_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 {
- ALOG_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() {
-}
-
-void InputDispatcher::ConfigurationChangedEntry::appendDescription(String8& msg) const {
- msg.append("ConfigurationChangedEvent(), policyFlags=0x%08x",
- policyFlags);
-}
-
-
-// --- InputDispatcher::DeviceResetEntry ---
-
-InputDispatcher::DeviceResetEntry::DeviceResetEntry(nsecs_t eventTime, int32_t deviceId) :
- EventEntry(TYPE_DEVICE_RESET, eventTime, 0),
- deviceId(deviceId) {
-}
-
-InputDispatcher::DeviceResetEntry::~DeviceResetEntry() {
-}
-
-void InputDispatcher::DeviceResetEntry::appendDescription(String8& msg) const {
- msg.appendFormat("DeviceResetEvent(deviceId=%d), policyFlags=0x%08x",
- deviceId, policyFlags);
-}
-
-
-// --- 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),
- interceptKeyWakeupTime(0) {
-}
-
-InputDispatcher::KeyEntry::~KeyEntry() {
-}
-
-void InputDispatcher::KeyEntry::appendDescription(String8& msg) const {
- msg.appendFormat("KeyEvent(deviceId=%d, source=0x%08x, action=%d, "
- "flags=0x%08x, keyCode=%d, scanCode=%d, metaState=0x%08x, "
- "repeatCount=%d), policyFlags=0x%08x",
- deviceId, source, action, flags, keyCode, scanCode, metaState,
- repeatCount, policyFlags);
-}
-
-void InputDispatcher::KeyEntry::recycle() {
- releaseInjectionState();
-
- dispatchInProgress = false;
- syntheticRepeat = false;
- interceptKeyResult = KeyEntry::INTERCEPT_KEY_RESULT_UNKNOWN;
- interceptKeyWakeupTime = 0;
-}
-
-
-// --- 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, int32_t displayId, uint32_t pointerCount,
- const PointerProperties* pointerProperties, const PointerCoords* pointerCoords) :
- EventEntry(TYPE_MOTION, eventTime, policyFlags),
- eventTime(eventTime),
- deviceId(deviceId), source(source), action(action), flags(flags),
- metaState(metaState), buttonState(buttonState), edgeFlags(edgeFlags),
- xPrecision(xPrecision), yPrecision(yPrecision),
- downTime(downTime), displayId(displayId), pointerCount(pointerCount) {
- for (uint32_t i = 0; i < pointerCount; i++) {
- this->pointerProperties[i].copyFrom(pointerProperties[i]);
- this->pointerCoords[i].copyFrom(pointerCoords[i]);
- }
-}
-
-InputDispatcher::MotionEntry::~MotionEntry() {
-}
-
-void InputDispatcher::MotionEntry::appendDescription(String8& msg) const {
- msg.appendFormat("MotionEvent(deviceId=%d, source=0x%08x, action=%d, "
- "flags=0x%08x, metaState=0x%08x, buttonState=0x%08x, edgeFlags=0x%08x, "
- "xPrecision=%.1f, yPrecision=%.1f, displayId=%d, pointers=[",
- deviceId, source, action, flags, metaState, buttonState, edgeFlags,
- xPrecision, yPrecision, displayId);
- for (uint32_t i = 0; i < pointerCount; i++) {
- if (i) {
- msg.append(", ");
- }
- msg.appendFormat("%d: (%.1f, %.1f)", pointerProperties[i].id,
- pointerCoords[i].getX(), pointerCoords[i].getY());
- }
- msg.appendFormat("]), policyFlags=0x%08x", policyFlags);
-}
-
-
-// --- InputDispatcher::DispatchEntry ---
-
-volatile int32_t InputDispatcher::DispatchEntry::sNextSeqAtomic;
-
-InputDispatcher::DispatchEntry::DispatchEntry(EventEntry* eventEntry,
- int32_t targetFlags, float xOffset, float yOffset, float scaleFactor) :
- seq(nextSeq()),
- eventEntry(eventEntry), targetFlags(targetFlags),
- xOffset(xOffset), yOffset(yOffset), scaleFactor(scaleFactor),
- deliveryTime(0), resolvedAction(0), resolvedFlags(0) {
- eventEntry->refCount += 1;
-}
-
-InputDispatcher::DispatchEntry::~DispatchEntry() {
- eventEntry->release();
-}
-
-uint32_t InputDispatcher::DispatchEntry::nextSeq() {
- // Sequence number 0 is reserved and will never be returned.
- uint32_t seq;
- do {
- seq = android_atomic_inc(&sNextSeqAtomic);
- } while (!seq);
- return seq;
-}
-
-
-// --- 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,
- int32_t displayId) const {
- for (size_t i = 0; i < mMotionMementos.size(); i++) {
- const MotionMemento& memento = mMotionMementos.itemAt(i);
- if (memento.deviceId == deviceId
- && memento.source == source
- && memento.displayId == displayId
- && 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;
- }
- /* FIXME: We can't just drop the key up event because that prevents creating
- * popup windows that are automatically shown when a key is held and then
- * dismissed when the key is released. The problem is that the popup will
- * not have received the original key down, so the key up will be considered
- * to be inconsistent with its observed state. We could perhaps handle this
- * by synthesizing a key down but that will cause other problems.
- *
- * So for now, allow inconsistent key up events to be dispatched.
- *
-#if DEBUG_OUTBOUND_EVENT_DETAILS
- ALOGD("Dropping inconsistent key up event: deviceId=%d, source=%08x, "
- "keyCode=%d, scanCode=%d",
- entry->deviceId, entry->source, entry->keyCode, entry->scanCode);
-#endif
- return false;
- */
- return true;
- }
-
- 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
- ALOGD("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
- ALOGD("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
- ALOGD("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.displayId == entry->displayId
- && 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.metaState = entry->metaState;
- memento.flags = flags;
- memento.downTime = entry->downTime;
- memento.policyFlags = entry->policyFlags;
-}
-
-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.displayId = entry->displayId;
- memento.setPointers(entry);
- memento.hovering = hovering;
- memento.policyFlags = entry->policyFlags;
-}
-
-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->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, memento.policyFlags,
- AKEY_EVENT_ACTION_UP, memento.flags | AKEY_EVENT_FLAG_CANCELED,
- memento.keyCode, memento.scanCode, memento.metaState, 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, memento.policyFlags,
- memento.hovering
- ? AMOTION_EVENT_ACTION_HOVER_EXIT
- : AMOTION_EVENT_ACTION_CANCEL,
- memento.flags, 0, 0, 0,
- memento.xPrecision, memento.yPrecision, memento.downTime,
- memento.displayId,
- 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
- && memento.displayId == otherMemento.displayId) {
- 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;
- }
-
- if (options.deviceId != -1 && memento.deviceId != options.deviceId) {
- 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) {
- if (options.deviceId != -1 && memento.deviceId != options.deviceId) {
- return false;
- }
-
- 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, bool monitor) :
- status(STATUS_NORMAL), inputChannel(inputChannel), inputWindowHandle(inputWindowHandle),
- monitor(monitor),
- inputPublisher(inputChannel), inputPublisherBlocked(false) {
-}
-
-InputDispatcher::Connection::~Connection() {
-}
-
-const char* InputDispatcher::Connection::getWindowName() const {
- if (inputWindowHandle != NULL) {
- return inputWindowHandle->getName().string();
- }
- if (monitor) {
- return "monitor";
- }
- return "?";
-}
-
-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::findWaitQueueEntry(uint32_t seq) {
- for (DispatchEntry* entry = waitQueue.head; entry != NULL; entry = entry->next) {
- if (entry->seq == seq) {
- return entry;
- }
- }
- return NULL;
-}
-
-
-// --- InputDispatcher::CommandEntry ---
-
-InputDispatcher::CommandEntry::CommandEntry(Command command) :
- command(command), eventTime(0), keyEntry(NULL), userActivityEventType(0),
- seq(0), handled(false) {
-}
-
-InputDispatcher::CommandEntry::~CommandEntry() {
-}
-
-
-// --- InputDispatcher::TouchState ---
-
-InputDispatcher::TouchState::TouchState() :
- down(false), split(false), deviceId(-1), source(0), displayId(-1) {
-}
-
-InputDispatcher::TouchState::~TouchState() {
-}
-
-void InputDispatcher::TouchState::reset() {
- down = false;
- split = false;
- deviceId = -1;
- source = 0;
- displayId = -1;
- windows.clear();
-}
-
-void InputDispatcher::TouchState::copyFrom(const TouchState& other) {
- down = other.down;
- split = other.split;
- deviceId = other.deviceId;
- source = other.source;
- displayId = other.displayId;
- 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::removeWindow(const sp<InputWindowHandle>& windowHandle) {
- for (size_t i = 0; i < windows.size(); i++) {
- if (windows.itemAt(i).windowHandle == windowHandle) {
- windows.removeAt(i);
- return;
- }
- }
-}
-
-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->getInfo()->layoutParamsFlags
- & InputWindowInfo::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