diff options
Diffstat (limited to 'libs/input/PointerController.h')
-rw-r--r-- | libs/input/PointerController.h | 79 |
1 files changed, 78 insertions, 1 deletions
diff --git a/libs/input/PointerController.h b/libs/input/PointerController.h index b9e4ce7..790c0bb 100644 --- a/libs/input/PointerController.h +++ b/libs/input/PointerController.h @@ -21,7 +21,6 @@ #include <ui/DisplayInfo.h> #include <input/Input.h> -#include <inputflinger/PointerControllerInterface.h> #include <utils/BitSet.h> #include <utils/RefBase.h> #include <utils/Looper.h> @@ -31,6 +30,84 @@ namespace android { +/** + * Interface for tracking a mouse / touch pad pointer and touch pad spots. + * + * The spots are sprites on screen that visually represent the positions of + * fingers + * + * The pointer controller is responsible for providing synchronization and for tracking + * display orientation changes if needed. + */ +class PointerControllerInterface : public virtual RefBase { +protected: + PointerControllerInterface() { } + virtual ~PointerControllerInterface() { } + +public: + /* Gets the bounds of the region that the pointer can traverse. + * Returns true if the bounds are available. */ + virtual bool getBounds(float* outMinX, float* outMinY, + float* outMaxX, float* outMaxY) const = 0; + + /* Move the pointer. */ + virtual void move(float deltaX, float deltaY) = 0; + + /* Sets a mask that indicates which buttons are pressed. */ + virtual void setButtonState(int32_t buttonState) = 0; + + /* Gets a mask that indicates which buttons are pressed. */ + virtual int32_t getButtonState() const = 0; + + /* Sets the absolute location of the pointer. */ + virtual void setPosition(float x, float y) = 0; + + /* Gets the absolute location of the pointer. */ + virtual void getPosition(float* outX, float* outY) const = 0; + + enum Transition { + // Fade/unfade immediately. + TRANSITION_IMMEDIATE, + // Fade/unfade gradually. + TRANSITION_GRADUAL, + }; + + /* Fades the pointer out now. */ + virtual void fade(Transition transition) = 0; + + /* Makes the pointer visible if it has faded out. + * The pointer never unfades itself automatically. This method must be called + * by the client whenever the pointer is moved or a button is pressed and it + * wants to ensure that the pointer becomes visible again. */ + virtual void unfade(Transition transition) = 0; + + enum Presentation { + // Show the mouse pointer. + PRESENTATION_POINTER, + // Show spots and a spot anchor in place of the mouse pointer. + PRESENTATION_SPOT, + }; + + /* Sets the mode of the pointer controller. */ + virtual void setPresentation(Presentation presentation) = 0; + + /* Sets the spots for the current gesture. + * The spots are not subject to the inactivity timeout like the pointer + * itself it since they are expected to remain visible for so long as + * the fingers are on the touch pad. + * + * The values of the AMOTION_EVENT_AXIS_PRESSURE axis is significant. + * For spotCoords, pressure != 0 indicates that the spot's location is being + * pressed (not hovering). + */ + virtual void setSpots(const PointerCoords* spotCoords, const uint32_t* spotIdToIndex, + BitSet32 spotIdBits) = 0; + + /* Removes all spots. */ + virtual void clearSpots() = 0; +}; + + /* * Pointer resources. */ |