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-rw-r--r--services/input/PointerController.h266
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diff --git a/services/input/PointerController.h b/services/input/PointerController.h
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-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _UI_POINTER_CONTROLLER_H
-#define _UI_POINTER_CONTROLLER_H
-
-#include "SpriteController.h"
-
-#include <ui/DisplayInfo.h>
-#include <input/Input.h>
-#include <utils/BitSet.h>
-#include <utils/RefBase.h>
-#include <utils/Looper.h>
-#include <utils/String8.h>
-
-#include <SkBitmap.h>
-
-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.
- */
-struct PointerResources {
- SpriteIcon spotHover;
- SpriteIcon spotTouch;
- SpriteIcon spotAnchor;
-};
-
-
-/*
- * Pointer controller policy interface.
- *
- * The pointer controller policy is used by the pointer controller to interact with
- * the Window Manager and other system components.
- *
- * The actual implementation is partially supported by callbacks into the DVM
- * via JNI. This interface is also mocked in the unit tests.
- */
-class PointerControllerPolicyInterface : public virtual RefBase {
-protected:
- PointerControllerPolicyInterface() { }
- virtual ~PointerControllerPolicyInterface() { }
-
-public:
- virtual void loadPointerResources(PointerResources* outResources) = 0;
-};
-
-
-/*
- * Tracks pointer movements and draws the pointer sprite to a surface.
- *
- * Handles pointer acceleration and animation.
- */
-class PointerController : public PointerControllerInterface, public MessageHandler {
-protected:
- virtual ~PointerController();
-
-public:
- enum InactivityTimeout {
- INACTIVITY_TIMEOUT_NORMAL = 0,
- INACTIVITY_TIMEOUT_SHORT = 1,
- };
-
- PointerController(const sp<PointerControllerPolicyInterface>& policy,
- const sp<Looper>& looper, const sp<SpriteController>& spriteController);
-
- virtual bool getBounds(float* outMinX, float* outMinY,
- float* outMaxX, float* outMaxY) const;
- virtual void move(float deltaX, float deltaY);
- virtual void setButtonState(int32_t buttonState);
- virtual int32_t getButtonState() const;
- virtual void setPosition(float x, float y);
- virtual void getPosition(float* outX, float* outY) const;
- virtual void fade(Transition transition);
- virtual void unfade(Transition transition);
-
- virtual void setPresentation(Presentation presentation);
- virtual void setSpots(const PointerCoords* spotCoords,
- const uint32_t* spotIdToIndex, BitSet32 spotIdBits);
- virtual void clearSpots();
-
- void setDisplayViewport(int32_t width, int32_t height, int32_t orientation);
- void setPointerIcon(const SpriteIcon& icon);
- void setInactivityTimeout(InactivityTimeout inactivityTimeout);
-
-private:
- static const size_t MAX_RECYCLED_SPRITES = 12;
- static const size_t MAX_SPOTS = 12;
-
- enum {
- MSG_ANIMATE,
- MSG_INACTIVITY_TIMEOUT,
- };
-
- struct Spot {
- static const uint32_t INVALID_ID = 0xffffffff;
-
- uint32_t id;
- sp<Sprite> sprite;
- float alpha;
- float scale;
- float x, y;
-
- inline Spot(uint32_t id, const sp<Sprite>& sprite)
- : id(id), sprite(sprite), alpha(1.0f), scale(1.0f),
- x(0.0f), y(0.0f), lastIcon(NULL) { }
-
- void updateSprite(const SpriteIcon* icon, float x, float y);
-
- private:
- const SpriteIcon* lastIcon;
- };
-
- mutable Mutex mLock;
-
- sp<PointerControllerPolicyInterface> mPolicy;
- sp<Looper> mLooper;
- sp<SpriteController> mSpriteController;
- sp<WeakMessageHandler> mHandler;
-
- PointerResources mResources;
-
- struct Locked {
- bool animationPending;
- nsecs_t animationTime;
-
- int32_t displayWidth;
- int32_t displayHeight;
- int32_t displayOrientation;
-
- InactivityTimeout inactivityTimeout;
-
- Presentation presentation;
- bool presentationChanged;
-
- int32_t pointerFadeDirection;
- float pointerX;
- float pointerY;
- float pointerAlpha;
- sp<Sprite> pointerSprite;
- SpriteIcon pointerIcon;
- bool pointerIconChanged;
-
- int32_t buttonState;
-
- Vector<Spot*> spots;
- Vector<sp<Sprite> > recycledSprites;
- } mLocked;
-
- bool getBoundsLocked(float* outMinX, float* outMinY, float* outMaxX, float* outMaxY) const;
- void setPositionLocked(float x, float y);
-
- void handleMessage(const Message& message);
- void doAnimate();
- void doInactivityTimeout();
-
- void startAnimationLocked();
-
- void resetInactivityTimeoutLocked();
- void removeInactivityTimeoutLocked();
- void updatePointerLocked();
-
- Spot* getSpotLocked(uint32_t id);
- Spot* createAndAddSpotLocked(uint32_t id);
- Spot* removeFirstFadingSpotLocked();
- void releaseSpotLocked(Spot* spot);
- void fadeOutAndReleaseSpotLocked(Spot* spot);
- void fadeOutAndReleaseAllSpotsLocked();
-
- void loadResources();
-};
-
-} // namespace android
-
-#endif // _UI_POINTER_CONTROLLER_H