X-Git-Url: http://nitlanguage.org diff --git a/lib/android/input_events.nit b/lib/android/input_events.nit index c3e3e2a..96663c7 100644 --- a/lib/android/input_events.nit +++ b/lib/android/input_events.nit @@ -17,8 +17,8 @@ # Pointer and hardware key events module input_events -import mnit_input -import android +import mnit::input +import android::game in "C header" `{ #include @@ -51,32 +51,39 @@ in "C" `{ } `} -extern class NativeAndroidMotionEvent `{AInputEvent *`} +private extern class NativeAndroidMotionEvent `{AInputEvent *`} - private fun pointers_count: Int `{ - return AMotionEvent_getPointerCount(recv); + fun pointers_count: Int `{ + return AMotionEvent_getPointerCount(self); `} - private fun just_went_down: Bool `{ - return (AMotionEvent_getAction(recv) & AMOTION_EVENT_ACTION_MASK) == AMOTION_EVENT_ACTION_DOWN; + fun edge: Int `{ + return AMotionEvent_getEdgeFlags(self); `} - private fun edge: Int `{ - return AMotionEvent_getEdgeFlags(recv); - `} - - private fun index_down_pointer: Int `{ - int a = AMotionEvent_getAction(recv); + # Get the non-primary pointer id that just went down (returns -1 or > 0) + fun index_down_pointer: Int `{ + int a = AMotionEvent_getAction(self); if ((a & AMOTION_EVENT_ACTION_MASK) == AMOTION_EVENT_ACTION_POINTER_DOWN) return (a & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK) >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT; else return -1; `} - private fun action: AMotionEventAction `{ return AMotionEvent_getAction(recv); `} + fun action: AMotionEventAction `{ return AMotionEvent_getAction(self); `} + + fun native_down_time: Int `{ return AMotionEvent_getDownTime(self); `} end -extern class AMotionEventAction `{ int32_t `} - protected fun action: Int `{ return recv & AMOTION_EVENT_ACTION_MASK; `} +private extern class AMotionEventAction `{ int32_t `} + fun action: Int `{ return self & AMOTION_EVENT_ACTION_MASK; `} + + # Pointer index concerned by this action + # + # Require: `is_pointer_down or is_pointer_up` + fun pointer_index: Int `{ + return (self & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK) >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT; + `} + fun is_down: Bool do return action == 0 fun is_up: Bool do return action == 1 fun is_move: Bool do return action == 2 @@ -86,96 +93,142 @@ extern class AMotionEventAction `{ int32_t `} fun is_pointer_up: Bool do return action == 6 end +# An input event on Android interface AndroidInputEvent super InputEvent end +# A motion event concerning a single or more `pointers` class AndroidMotionEvent super AndroidInputEvent super MotionEvent - private init(ie: NativeAndroidMotionEvent) do native = ie private var native: NativeAndroidMotionEvent - private var pointers_cache: nullable Array[AndroidPointerEvent] = null - fun pointers: Array[AndroidPointerEvent] - do - if pointers_cache != null then - return pointers_cache.as(not null) - else - var pointers = new Array[AndroidPointerEvent] - var pointers_count = native.pointers_count - for i in [0 .. pointers_count [do - var pointer_event = new AndroidPointerEvent(self, i) - pointers.add(pointer_event) - end - pointers_cache = pointers - return pointers + # Pointers (or fingers) composing this motion event + var pointers: Array[AndroidPointerEvent] is lazy do + return [for i in native.pointers_count.times do new AndroidPointerEvent(self, i)] + end + + # The pointer (or finger) causing this event + var acting_pointer: AndroidPointerEvent is lazy do + var action = native.action + var index = 0 + + if action.is_pointer_down or action.is_pointer_up then + index = native.action.pointer_index end + + return new AndroidPointerEvent(self, index) end - redef fun just_went_down: Bool do return native.just_went_down - fun edge: Int do return native.edge + redef fun just_went_down do return native.action.is_down or native.action.is_pointer_down + + # Was the top edge of the screen intersected by this event? + fun touch_to_edge: Bool do return native.edge == 1 + + # Was the bottom edge of the screen intersected by this event? + fun touch_bottom_edge: Bool do return native.edge == 2 + + # Was the left edge of the screen intersected by this event? + fun touch_left_edge: Bool do return native.edge == 4 + + # Was the right edge of the screen intersected by this event? + fun touch_right_edge: Bool do return native.edge == 8 redef fun down_pointer: nullable AndroidPointerEvent do + if just_went_down then + # The primary pointer went down + return pointers[0] + end + var i = native.index_down_pointer if i > 0 then + # A secondary pointer went down return pointers[i] else return null end end + + # Time when the user originally pressed down to start a stream of position events + # + # The return value is in the `java.lang.System.nanoTime()` time base. + fun down_time: Int do return native.native_down_time end +# A pointer event class AndroidPointerEvent super PointerEvent super AndroidInputEvent - protected var motion_event: AndroidMotionEvent - protected var pointer_id: Int + private var motion_event: AndroidMotionEvent - redef fun x: Float do return native_x(motion_event.native, pointer_id) + private var pointer_index: Int - private fun native_x(motion_event: NativeAndroidMotionEvent, pointer_id: Int): Float `{ - return AMotionEvent_getX(motion_event, pointer_id); + redef fun x do return native_x(motion_event.native, pointer_index) + + private fun native_x(motion_event: NativeAndroidMotionEvent, pointer_index: Int): Float `{ + return AMotionEvent_getX(motion_event, pointer_index); `} - redef fun y: Float do return native_y(motion_event.native, pointer_id) + redef fun y do return native_y(motion_event.native, pointer_index) - private fun native_y(motion_event: NativeAndroidMotionEvent, pointer_id: Int): Float `{ - return AMotionEvent_getY(motion_event, pointer_id); + private fun native_y(motion_event: NativeAndroidMotionEvent, pointer_index: Int): Float `{ + return AMotionEvent_getY(motion_event, pointer_index); `} - fun pressure: Float do return native_pressure(motion_event.native, pointer_id) + # Pressure applied by this pointer + fun pressure: Float do return native_pressure(motion_event.native, pointer_index) - private fun native_pressure(motion_event: NativeAndroidMotionEvent, pointer_id: Int): Float `{ - return AMotionEvent_getPressure(motion_event, pointer_id); + private fun native_pressure(motion_event: NativeAndroidMotionEvent, pointer_index: Int): Float `{ + return AMotionEvent_getPressure(motion_event, pointer_index); `} redef fun pressed do var action = motion_event.native.action - return action.is_down or action.is_move + return action.is_down or action.is_move or action.is_pointer_down end - redef fun depressed do return not pressed + redef fun is_move do return motion_event.acting_pointer == self and + motion_event.native.action.is_move + + # Does this pointer just began touching the screen? + fun just_went_down: Bool do return motion_event.acting_pointer == self and + motion_event.just_went_down + + # Unique id of this pointer since the beginning of the gesture + redef fun pointer_id do return native_pointer_id(motion_event.native, pointer_index) + + private fun native_pointer_id(motion_event: NativeAndroidMotionEvent, pointer_index: Int): Int `{ + return AMotionEvent_getPointerId(motion_event, pointer_index); + `} end +# An hardware key event extern class AndroidKeyEvent `{AInputEvent *`} super KeyEvent super AndroidInputEvent - fun action: Int `{ - return AKeyEvent_getAction(recv); - `} - redef fun is_down: Bool do return action == 0 - redef fun is_up: Bool do return action == 1 + private fun action: Int `{ return AKeyEvent_getAction(self); `} - fun key_code: Int `{ return AKeyEvent_getKeyCode(recv); `} + redef fun is_down do return action == 0 + redef fun is_up do return action == 1 - redef fun to_c `{ - int code = AKeyEvent_getKeyCode(recv); + # Hardware code of the key raising this event + fun key_code: Int `{ return AKeyEvent_getKeyCode(self); `} + + redef fun to_c + do + var i = native_to_c + if i == 0 then return null + return i.code_point + end + + private fun native_to_c: Int `{ + int code = AKeyEvent_getKeyCode(self); if (code >= AKEYCODE_0 && code <= AKEYCODE_9) return '0'+code-AKEYCODE_0; if (code >= AKEYCODE_A && code <= AKEYCODE_Z) @@ -183,11 +236,21 @@ extern class AndroidKeyEvent `{AInputEvent *`} return 0; `} + redef fun name do return key_code.to_s + + # Was this event raised by the back key? fun is_back_key: Bool do return key_code == 4 + + # Was this event raised by the menu key? fun is_menu_key: Bool do return key_code == 82 + + # Was this event raised by the search key? fun is_search_key: Bool do return key_code == 84 + # Was this event raised by the volume up key? fun is_volume_up: Bool do return key_code == 24 + + # Was this event raised by the volume down key? fun is_volume_down: Bool do return key_code == 25 end