am 96725326: am 31e0ffe8: Merge "Native input event dispatching." into gingerbread (1f0c9ea9) · Commits · e / os / platform_frameworks_native

include/ui/Input.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -87,6 +87,9 @@ enum {
		// Indicates that the screen was dim when the event was received and the event
		// should brighten the device.
		POLICY_FLAG_BRIGHT_HERE = 0x20000000,

		// Indicates that the dispatcher should call back into the policy before dispatching. */
		POLICY_FLAG_INTERCEPT_DISPATCH = 0x40000000,
		};

		/*

include/ui/InputDispatcher.h

+16 −4

Original line number	Diff line number	Diff line
		@@ -126,21 +126,21 @@ public:
		/* Gets the key repeat timeout or -1 if automatic key repeating is disabled. */
		virtual nsecs_t getKeyRepeatTimeout() = 0;

		/* Gets the input targets for a key event.
		/* Waits for key event input targets to become available.
		* If the event is being injected, injectorPid and injectorUid should specify the
		* process id and used id of the injecting application, otherwise they should both
		* be -1.
		* Returns one of the INPUT_EVENT_INJECTION_XXX constants. */
		virtual int32_t getKeyEventTargets(KeyEvent* keyEvent, uint32_t policyFlags,
		virtual int32_t waitForKeyEventTargets(KeyEvent* keyEvent, uint32_t policyFlags,
		int32_t injectorPid, int32_t injectorUid,
		Vector<InputTarget>& outTargets) = 0;

		/* Gets the input targets for a motion event.
		/* Waits for motion event targets to become available.
		* If the event is being injected, injectorPid and injectorUid should specify the
		* process id and used id of the injecting application, otherwise they should both
		* be -1.
		* Returns one of the INPUT_EVENT_INJECTION_XXX constants. */
		virtual int32_t getMotionEventTargets(MotionEvent* motionEvent, uint32_t policyFlags,
		virtual int32_t waitForMotionEventTargets(MotionEvent* motionEvent, uint32_t policyFlags,
		int32_t injectorPid, int32_t injectorUid,
		Vector<InputTarget>& outTargets) = 0;
		};
		@@ -186,6 +186,16 @@ public:
		virtual int32_t injectInputEvent(const InputEvent* event,
		int32_t injectorPid, int32_t injectorUid, bool sync, int32_t timeoutMillis) = 0;

		/* Preempts input dispatch in progress by making pending synchronous
		* dispatches asynchronous instead. This method is generally called during a focus
		* transition from one application to the next so as to enable the new application
		* to start receiving input as soon as possible without having to wait for the
		* old application to finish up.
		*
		* This method may be called on any thread (usually by the input manager).
		*/
		virtual void preemptInputDispatch() = 0;

		/* Registers or unregister input channels that may be used as targets for input events.
		*
		* These methods may be called on any thread (usually by the input manager).
		@@ -233,6 +243,8 @@ public:
		virtual int32_t injectInputEvent(const InputEvent* event,
		int32_t injectorPid, int32_t injectorUid, bool sync, int32_t timeoutMillis);

		virtual void preemptInputDispatch();

		virtual status_t registerInputChannel(const sp<InputChannel>& inputChannel);
		virtual status_t unregisterInputChannel(const sp<InputChannel>& inputChannel);

include/ui/InputManager.h

+10 −0

Original line number	Diff line number	Diff line
		@@ -87,6 +87,14 @@ public:
		virtual int32_t injectInputEvent(const InputEvent* event,
		int32_t injectorPid, int32_t injectorUid, bool sync, int32_t timeoutMillis) = 0;

		/* Preempts input dispatch in progress by making pending synchronous
		* dispatches asynchronous instead. This method is generally called during a focus
		* transition from one application to the next so as to enable the new application
		* to start receiving input as soon as possible without having to wait for the
		* old application to finish up.
		*/
		virtual void preemptInputDispatch() = 0;

		/* Gets input device configuration. */
		virtual void getInputConfiguration(InputConfiguration* outConfiguration) const = 0;

		@@ -130,6 +138,8 @@ public:
		virtual int32_t injectInputEvent(const InputEvent* event,
		int32_t injectorPid, int32_t injectorUid, bool sync, int32_t timeoutMillis);

		virtual void preemptInputDispatch();

		virtual void getInputConfiguration(InputConfiguration* outConfiguration) const;
		virtual int32_t getScanCodeState(int32_t deviceId, int32_t deviceClasses,
		int32_t scanCode) const;

include/ui/InputReader.h

+5 −1

Original line number	Diff line number	Diff line
		@@ -361,7 +361,11 @@ public:

		// The input dispatcher should add POLICY_FLAG_BRIGHT_HERE to the policy flags it
		// passes through the dispatch pipeline.
		ACTION_BRIGHT_HERE = 0x00000008
		ACTION_BRIGHT_HERE = 0x00000008,

		// The input dispatcher should add POLICY_FLAG_INTERCEPT_DISPATCH to the policy flags
		// it passed through the dispatch pipeline.
		ACTION_INTERCEPT_DISPATCH = 0x00000010
		};

		/* Describes a virtual key. */

libs/ui/InputDispatcher.cpp

+63 −23

Original line number	Diff line number	Diff line
		@@ -8,25 +8,25 @@
		//#define LOG_NDEBUG 0

		// Log detailed debug messages about each inbound event notification to the dispatcher.
		#define DEBUG_INBOUND_EVENT_DETAILS 1
		#define DEBUG_INBOUND_EVENT_DETAILS 0

		// Log detailed debug messages about each outbound event processed by the dispatcher.
		#define DEBUG_OUTBOUND_EVENT_DETAILS 1
		#define DEBUG_OUTBOUND_EVENT_DETAILS 0

		// Log debug messages about batching.
		#define DEBUG_BATCHING 1
		#define DEBUG_BATCHING 0

		// Log debug messages about the dispatch cycle.
		#define DEBUG_DISPATCH_CYCLE 1
		#define DEBUG_DISPATCH_CYCLE 0

		// Log debug messages about registrations.
		#define DEBUG_REGISTRATION 1
		#define DEBUG_REGISTRATION 0

		// Log debug messages about performance statistics.
		#define DEBUG_PERFORMANCE_STATISTICS 1
		#define DEBUG_PERFORMANCE_STATISTICS 0

		// Log debug messages about input event injection.
		#define DEBUG_INJECTION 1
		#define DEBUG_INJECTION 0

		#include <cutils/log.h>
		#include <ui/InputDispatcher.h>
		@@ -249,9 +249,7 @@ void InputDispatcher::processKeyLockedInterruptible(
		entry->downTime);
		#endif

		// TODO: Poke user activity.

		if (entry->action == KEY_EVENT_ACTION_DOWN) {
		if (entry->action == KEY_EVENT_ACTION_DOWN && ! entry->isInjected()) {
		if (mKeyRepeatState.lastKeyEntry
		&& mKeyRepeatState.lastKeyEntry->keyCode == entry->keyCode) {
		// We have seen two identical key downs in a row which indicates that the device
		@@ -277,14 +275,24 @@ void InputDispatcher::processKeyLockedInterruptible(

		void InputDispatcher::processKeyRepeatLockedInterruptible(
		nsecs_t currentTime, nsecs_t keyRepeatTimeout) {
		// TODO Old WindowManagerServer code sniffs the input queue for following key up
		// events and drops the repeat if one is found. We should do something similar.
		// One good place to do it is in notifyKey as soon as the key up enters the
		// inbound event queue.
		KeyEntry* entry = mKeyRepeatState.lastKeyEntry;

		// Search the inbound queue for a key up corresponding to this device.
		// It doesn't make sense to generate a key repeat event if the key is already up.
		for (EventEntry* queuedEntry = mInboundQueue.head.next;
		queuedEntry != & mInboundQueue.tail; queuedEntry = entry->next) {
		if (queuedEntry->type == EventEntry::TYPE_KEY) {
		KeyEntry* queuedKeyEntry = static_cast<KeyEntry*>(queuedEntry);
		if (queuedKeyEntry->deviceId == entry->deviceId
		&& entry->action == KEY_EVENT_ACTION_UP) {
		resetKeyRepeatLocked();
		return;
		}
		}
		}

		// Synthesize a key repeat after the repeat timeout expired.
		// We reuse the previous key entry if otherwise unreferenced.
		KeyEntry* entry = mKeyRepeatState.lastKeyEntry;
		// Reuse the repeated key entry if it is otherwise unreferenced.
		uint32_t policyFlags = entry->policyFlags & POLICY_FLAG_RAW_MASK;
		if (entry->refCount == 1) {
		entry->eventTime = currentTime;
		@@ -366,7 +374,7 @@ void InputDispatcher::identifyInputTargetsAndDispatchKeyLockedInterruptible(
		entry->downTime, entry->eventTime);

		mCurrentInputTargets.clear();
		int32_t injectionResult = mPolicy->getKeyEventTargets(& mReusableKeyEvent,
		int32_t injectionResult = mPolicy->waitForKeyEventTargets(& mReusableKeyEvent,
		entry->policyFlags, entry->injectorPid, entry->injectorUid,
		mCurrentInputTargets);

		@@ -375,8 +383,10 @@ void InputDispatcher::identifyInputTargetsAndDispatchKeyLockedInterruptible(

		setInjectionResultLocked(entry, injectionResult);

		if (injectionResult == INPUT_EVENT_INJECTION_SUCCEEDED) {
		dispatchEventToCurrentInputTargetsLocked(currentTime, entry, false);
		}
		}

		void InputDispatcher::identifyInputTargetsAndDispatchMotionLockedInterruptible(
		nsecs_t currentTime, MotionEntry* entry) {
		@@ -395,7 +405,7 @@ void InputDispatcher::identifyInputTargetsAndDispatchMotionLockedInterruptible(
		entry->firstSample.pointerCoords);

		mCurrentInputTargets.clear();
		int32_t injectionResult = mPolicy->getMotionEventTargets(& mReusableMotionEvent,
		int32_t injectionResult = mPolicy->waitForMotionEventTargets(& mReusableMotionEvent,
		entry->policyFlags, entry->injectorPid, entry->injectorUid,
		mCurrentInputTargets);

		@@ -404,8 +414,10 @@ void InputDispatcher::identifyInputTargetsAndDispatchMotionLockedInterruptible(

		setInjectionResultLocked(entry, injectionResult);

		if (injectionResult == INPUT_EVENT_INJECTION_SUCCEEDED) {
		dispatchEventToCurrentInputTargetsLocked(currentTime, entry, false);
		}
		}

		void InputDispatcher::dispatchEventToCurrentInputTargetsLocked(nsecs_t currentTime,
		EventEntry* eventEntry, bool resumeWithAppendedMotionSample) {
		@@ -1253,9 +1265,37 @@ void InputDispatcher::resetKeyRepeatLocked() {
		}
		}

		void InputDispatcher::preemptInputDispatch() {
		#if DEBUG_DISPATCH_CYCLE
		LOGD("preemptInputDispatch");
		#endif

		bool preemptedOne = false;
		{ // acquire lock
		AutoMutex _l(mLock);

		for (size_t i = 0; i < mActiveConnections.size(); i++) {
		Connection* connection = mActiveConnections[i];
		if (connection->hasPendingSyncTarget()) {
		#if DEBUG_DISPATCH_CYCLE
		LOGD("channel '%s' ~ Preempted pending synchronous dispatch",
		connection->getInputChannelName());
		#endif
		connection->outboundQueue.tail.prev->targetFlags &= ~ InputTarget::FLAG_SYNC;
		preemptedOne = true;
		}
		}
		} // release lock

		if (preemptedOne) {
		// Wake up the poll loop so it can get a head start dispatching the next event.
		mPollLoop->wake();
		}
		}

		status_t InputDispatcher::registerInputChannel(const sp<InputChannel>& inputChannel) {
		#if DEBUG_REGISTRATION
		LOGD("channel '%s' - Registered", inputChannel->getName().string());
		LOGD("channel '%s' ~ registerInputChannel", inputChannel->getName().string());
		#endif

		int receiveFd;
		@@ -1288,7 +1328,7 @@ status_t InputDispatcher::registerInputChannel(const sp<InputChannel>& inputChan

		status_t InputDispatcher::unregisterInputChannel(const sp<InputChannel>& inputChannel) {
		#if DEBUG_REGISTRATION
		LOGD("channel '%s' - Unregistered", inputChannel->getName().string());
		LOGD("channel '%s' ~ unregisterInputChannel", inputChannel->getName().string());
		#endif

		int32_t receiveFd;