efd3266b71
Associate each motion axis with the source from which it comes. It is possible for multiple sources of the same device to define the same axis. This fixes new API that was introduced in MR1. (Bug: 4066146) Fixed a bug that might cause a segfault when using a trackball. Only fade out the mouse pointer when touching the touch screen, ignore other touch pads. Changed the plural "sources" to "source" in several places in the InputReader where we intend to refer to a particular source rather than to a combination of sources. Improved the batching code to support batching events from different sources of the same device in parallel. (Bug: 3391564) Change-Id: I0189e18e464338f126f7bf94370b928e1b1695f2
161 lines
4.7 KiB
C++
161 lines
4.7 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _UI_POINTER_CONTROLLER_H
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#define _UI_POINTER_CONTROLLER_H
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#include <ui/DisplayInfo.h>
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#include <ui/Input.h>
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#include <utils/RefBase.h>
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#include <utils/Looper.h>
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#include <utils/String8.h>
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#include <surfaceflinger/Surface.h>
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#include <surfaceflinger/SurfaceComposerClient.h>
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#include <surfaceflinger/ISurfaceComposer.h>
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#include <SkBitmap.h>
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namespace android {
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/**
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* Interface for tracking a single (mouse) pointer.
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*
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* The pointer controller is responsible for providing synchronization and for tracking
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* display orientation changes if needed.
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*/
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class PointerControllerInterface : public virtual RefBase {
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protected:
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PointerControllerInterface() { }
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virtual ~PointerControllerInterface() { }
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public:
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/* Gets the bounds of the region that the pointer can traverse.
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* Returns true if the bounds are available. */
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virtual bool getBounds(float* outMinX, float* outMinY,
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float* outMaxX, float* outMaxY) const = 0;
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/* Move the pointer. */
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virtual void move(float deltaX, float deltaY) = 0;
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/* Sets a mask that indicates which buttons are pressed. */
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virtual void setButtonState(uint32_t buttonState) = 0;
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/* Gets a mask that indicates which buttons are pressed. */
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virtual uint32_t getButtonState() const = 0;
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/* Sets the absolute location of the pointer. */
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virtual void setPosition(float x, float y) = 0;
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/* Gets the absolute location of the pointer. */
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virtual void getPosition(float* outX, float* outY) const = 0;
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/* Fades the pointer out now. */
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virtual void fade() = 0;
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/* Makes the pointer visible if it has faded out. */
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virtual void unfade() = 0;
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};
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/*
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* Tracks pointer movements and draws the pointer sprite to a surface.
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*
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* Handles pointer acceleration and animation.
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*/
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class PointerController : public PointerControllerInterface, public MessageHandler {
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protected:
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virtual ~PointerController();
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public:
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enum InactivityFadeDelay {
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INACTIVITY_FADE_DELAY_NORMAL = 0,
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INACTIVITY_FADE_DELAY_SHORT = 1,
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};
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PointerController(const sp<Looper>& looper, int32_t pointerLayer);
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virtual bool getBounds(float* outMinX, float* outMinY,
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float* outMaxX, float* outMaxY) const;
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virtual void move(float deltaX, float deltaY);
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virtual void setButtonState(uint32_t buttonState);
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virtual uint32_t getButtonState() const;
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virtual void setPosition(float x, float y);
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virtual void getPosition(float* outX, float* outY) const;
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virtual void fade();
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virtual void unfade();
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void setDisplaySize(int32_t width, int32_t height);
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void setDisplayOrientation(int32_t orientation);
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void setPointerIcon(const SkBitmap* bitmap, float hotSpotX, float hotSpotY);
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void setInactivityFadeDelay(InactivityFadeDelay inactivityFadeDelay);
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private:
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enum {
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MSG_FADE_STEP = 0,
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};
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mutable Mutex mLock;
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sp<Looper> mLooper;
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int32_t mPointerLayer;
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sp<SurfaceComposerClient> mSurfaceComposerClient;
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sp<SurfaceControl> mSurfaceControl;
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struct Locked {
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int32_t displayWidth;
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int32_t displayHeight;
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int32_t displayOrientation;
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float pointerX;
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float pointerY;
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uint32_t buttonState;
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SkBitmap* iconBitmap;
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float iconHotSpotX;
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float iconHotSpotY;
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float fadeAlpha;
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InactivityFadeDelay inactivityFadeDelay;
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bool wantVisible;
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bool visible;
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bool drawn;
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} mLocked;
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sp<WeakMessageHandler> mHandler;
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bool getBoundsLocked(float* outMinX, float* outMinY, float* outMaxX, float* outMaxY) const;
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void setPositionLocked(float x, float y);
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void updateLocked();
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bool createSurfaceIfNeededLocked();
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bool drawPointerIfNeededLocked();
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bool resizeSurfaceLocked(int32_t width, int32_t height);
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void handleMessage(const Message& message);
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bool unfadeBeforeUpdateLocked();
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void startFadeLocked();
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void startInactivityFadeDelayLocked();
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void fadeStepLocked();
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bool isFadingLocked();
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nsecs_t getInactivityFadeDelayTimeLocked();
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void sendFadeStepMessageDelayedLocked(nsecs_t delayTime);
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};
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} // namespace android
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#endif // _UI_POINTER_CONTROLLER_H
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