Refactor input reader to add stylus support.
Bug: 5064702
Introduced the concept of an InputListener to further decouple
the InputReader from the InputDispatcher. The InputListener
exposes just the minimum interface that the InputReader needs
to communicate with the outside world. The InputReader
passes arguments to the InputListener by reference, which makes
it easy to queue them up.
Consolidated all of the InputReader locks into one simple global
Mutex. The reason this wasn't done before was due to potential
re-entrance in outbound calls to the InputDispatcher. To fix this,
the InputReader now queues up all of the events it wants to send
using a QueuedInputListener, then flushes them outside of the
critical section after all of the event processing is finished.
Removing all of the InputMapper locks greatly simplifies the
implementation.
Added tests for new stylus features such as buttons, tool types,
and hovering.
Added some helpers to BitSet32 to handle common code patterns
like finding the first marked bit and clearing it.
Fixed a bug in VelocityTracker where the wrong pointer trace
could get cleared when handling ACTION_POINTER_DOWN. Oops.
Changed PointerCoords so it no longer stores useless zero
axis values. Removed editAxisValue because it is not very
useful when all zero value axes are absent and therefore
cannot be edited in place.
Added dispatch of stylus hover events.
Added support for distance and tool types.
Change-Id: I4cf14d134fcb1db7d10be5f2af7b37deef8f8468
diff --git a/services/input/InputDispatcher.h b/services/input/InputDispatcher.h
index 1d39b2e..01c7b35 100644
--- a/services/input/InputDispatcher.h
+++ b/services/input/InputDispatcher.h
@@ -34,6 +34,7 @@
#include "InputWindow.h"
#include "InputApplication.h"
+#include "InputListener.h"
namespace android {
@@ -270,7 +271,7 @@
/* Notifies the system about input events generated by the input reader.
* The dispatcher is expected to be mostly asynchronous. */
-class InputDispatcherInterface : public virtual RefBase {
+class InputDispatcherInterface : public virtual RefBase, public InputListenerInterface {
protected:
InputDispatcherInterface() { }
virtual ~InputDispatcherInterface() { }
@@ -288,23 +289,6 @@
*/
virtual void dispatchOnce() = 0;
- /* Notifies the dispatcher about new events.
- *
- * These methods should only be called on the input reader thread.
- */
- virtual void notifyConfigurationChanged(nsecs_t eventTime) = 0;
- virtual void notifyKey(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, nsecs_t downTime) = 0;
- virtual void notifyMotion(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,
- uint32_t pointerCount, const PointerProperties* pointerProperties,
- const PointerCoords* pointerCoords,
- float xPrecision, float yPrecision, nsecs_t downTime) = 0;
- virtual void notifySwitch(nsecs_t when,
- int32_t switchCode, int32_t switchValue, uint32_t policyFlags) = 0;
-
/* Injects an input event and optionally waits for sync.
* The synchronization mode determines whether the method blocks while waiting for
* input injection to proceed.
@@ -389,18 +373,10 @@
virtual void dispatchOnce();
- virtual void notifyConfigurationChanged(nsecs_t eventTime);
- virtual void notifyKey(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, nsecs_t downTime);
- virtual void notifyMotion(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,
- uint32_t pointerCount, const PointerProperties* pointerProperties,
- const PointerCoords* pointerCoords,
- float xPrecision, float yPrecision, nsecs_t downTime);
- virtual void notifySwitch(nsecs_t when,
- int32_t switchCode, int32_t switchValue, uint32_t policyFlags) ;
+ virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args);
+ virtual void notifyKey(const NotifyKeyArgs* args);
+ virtual void notifyMotion(const NotifyMotionArgs* args);
+ virtual void notifySwitch(const NotifySwitchArgs* args);
virtual int32_t injectInputEvent(const InputEvent* event,
int32_t injectorPid, int32_t injectorUid, int32_t syncMode, int32_t timeoutMillis,