Filter virtual keys after touches.
Adds a new virtualKeyQuietTimeMillis configuration resource that sets
the duration for which virtual keys will be dropped after recent touches
on screen. The default value is 0; it is intended to be overridden
per device using a resource overlay.
This change is designed to help in two cases:
1. Swipes from touchscreen into virtual key area.
2. Accidental taps in virtual key area while using on-screen keyboard.
Bug: 3089163
Change-Id: Ib912d4f8a4df9966a39cd537d3ec7c24afab7225
diff --git a/services/jni/com_android_server_InputManager.cpp b/services/jni/com_android_server_InputManager.cpp
index e04e4c3..5b329bb 100644
--- a/services/jni/com_android_server_InputManager.cpp
+++ b/services/jni/com_android_server_InputManager.cpp
@@ -62,6 +62,7 @@
jmethodID checkInjectEventsPermission;
jmethodID filterTouchEvents;
jmethodID filterJumpyTouchEvents;
+ jmethodID getVirtualKeyQuietTimeMillis;
jmethodID getExcludedDeviceNames;
jmethodID getMaxEventsPerSecond;
jmethodID getPointerLayer;
@@ -159,6 +160,7 @@
int32_t* width, int32_t* height, int32_t* orientation);
virtual bool filterTouchEvents();
virtual bool filterJumpyTouchEvents();
+ virtual nsecs_t getVirtualKeyQuietTime();
virtual void getExcludedDeviceNames(Vector<String8>& outExcludedDeviceNames);
virtual sp<PointerControllerInterface> obtainPointerController(int32_t deviceId);
@@ -191,6 +193,7 @@
// Cached filtering policies.
int32_t mFilterTouchEvents;
int32_t mFilterJumpyTouchEvents;
+ nsecs_t mVirtualKeyQuietTime;
// Cached throttling policy.
int32_t mMaxEventsPerSecond;
@@ -219,7 +222,7 @@
NativeInputManager::NativeInputManager(jobject callbacksObj) :
- mFilterTouchEvents(-1), mFilterJumpyTouchEvents(-1),
+ mFilterTouchEvents(-1), mFilterJumpyTouchEvents(-1), mVirtualKeyQuietTime(-1),
mMaxEventsPerSecond(-1) {
JNIEnv* env = jniEnv();
@@ -355,6 +358,24 @@
return mFilterJumpyTouchEvents;
}
+nsecs_t NativeInputManager::getVirtualKeyQuietTime() {
+ if (mVirtualKeyQuietTime < 0) {
+ JNIEnv* env = jniEnv();
+
+ jint result = env->CallIntMethod(mCallbacksObj,
+ gCallbacksClassInfo.getVirtualKeyQuietTimeMillis);
+ if (checkAndClearExceptionFromCallback(env, "getVirtualKeyQuietTimeMillis")) {
+ result = 0;
+ }
+ if (result < 0) {
+ result = 0;
+ }
+
+ mVirtualKeyQuietTime = milliseconds_to_nanoseconds(result);
+ }
+ return mVirtualKeyQuietTime;
+}
+
void NativeInputManager::getExcludedDeviceNames(Vector<String8>& outExcludedDeviceNames) {
outExcludedDeviceNames.clear();
@@ -1155,6 +1176,9 @@
GET_METHOD_ID(gCallbacksClassInfo.filterJumpyTouchEvents, gCallbacksClassInfo.clazz,
"filterJumpyTouchEvents", "()Z");
+ GET_METHOD_ID(gCallbacksClassInfo.getVirtualKeyQuietTimeMillis, gCallbacksClassInfo.clazz,
+ "getVirtualKeyQuietTimeMillis", "()I");
+
GET_METHOD_ID(gCallbacksClassInfo.getExcludedDeviceNames, gCallbacksClassInfo.clazz,
"getExcludedDeviceNames", "()[Ljava/lang/String;");