145 lines
5.3 KiB
C++
145 lines
5.3 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 <PointerControllerInterface.h>
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#include <gui/DisplayEventReceiver.h>
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#include <input/DisplayViewport.h>
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#include <input/Input.h>
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#include <utils/BitSet.h>
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#include <utils/Looper.h>
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#include <utils/RefBase.h>
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#include <map>
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#include <memory>
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#include <vector>
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#include "MouseCursorController.h"
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#include "PointerControllerContext.h"
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#include "SpriteController.h"
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#include "TouchSpotController.h"
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namespace android {
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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 {
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public:
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static std::shared_ptr<PointerController> create(
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const sp<PointerControllerPolicyInterface>& policy, const sp<Looper>& looper,
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const sp<SpriteController>& spriteController);
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~PointerController() override;
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virtual bool getBounds(float* outMinX, float* outMinY, float* outMaxX, float* outMaxY) const;
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virtual void move(float deltaX, float deltaY);
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virtual void setButtonState(int32_t buttonState);
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virtual int32_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 int32_t getDisplayId() const;
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virtual void fade(Transition transition);
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virtual void unfade(Transition transition);
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virtual void setDisplayViewport(const DisplayViewport& viewport);
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virtual void setPresentation(Presentation presentation);
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virtual void setSpots(const PointerCoords* spotCoords, const uint32_t* spotIdToIndex,
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BitSet32 spotIdBits, int32_t displayId);
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virtual void clearSpots();
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void updatePointerIcon(int32_t iconId);
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void setCustomPointerIcon(const SpriteIcon& icon);
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void setInactivityTimeout(InactivityTimeout inactivityTimeout);
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void doInactivityTimeout();
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void reloadPointerResources();
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void onDisplayViewportsUpdated(std::vector<DisplayViewport>& viewports);
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void onDisplayInfosChangedLocked(const std::vector<gui::DisplayInfo>& displayInfos)
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REQUIRES(getLock());
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void setDisplayId(int32_t id);
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int32_t getDisplayId();
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const DisplayViewport& getViewportLocked() {
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return mCursorController.getViewportLocked();
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}
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protected:
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using WindowListenerConsumer =
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std::function<void(const sp<android::gui::WindowInfosListener>&)>;
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// Constructor used to test WindowInfosListener registration.
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PointerController(const sp<PointerControllerPolicyInterface>& policy, const sp<Looper>& looper,
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const sp<SpriteController>& spriteController,
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WindowListenerConsumer registerListener,
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WindowListenerConsumer unregisterListener);
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private:
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PointerController(const sp<PointerControllerPolicyInterface>& policy, const sp<Looper>& looper,
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const sp<SpriteController>& spriteController);
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friend PointerControllerContext::LooperCallback;
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friend PointerControllerContext::MessageHandler;
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// PointerController's DisplayInfoListener can outlive the PointerController because when the
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// listener is registered, a strong pointer to the listener (which can extend its lifecycle)
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// is given away. To avoid the small overhead of using two separate locks in these two objects,
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// we use the DisplayInfoListener's lock in PointerController.
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std::mutex& getLock() const;
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PointerControllerContext mContext;
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MouseCursorController mCursorController;
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struct Locked {
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Presentation presentation;
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int32_t pointerDisplayId = ADISPLAY_ID_NONE;
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std::vector<gui::DisplayInfo> mDisplayInfos;
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std::unordered_map<int32_t /* displayId */, TouchSpotController> spotControllers;
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} mLocked GUARDED_BY(getLock());
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class DisplayInfoListener : public gui::WindowInfosListener {
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public:
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explicit DisplayInfoListener(PointerController* pc) : mPointerController(pc){};
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void onWindowInfosChanged(const std::vector<android::gui::WindowInfo>&,
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const std::vector<android::gui::DisplayInfo>&) override;
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void onPointerControllerDestroyed();
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// This lock is also used by PointerController. See PointerController::getLock().
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std::mutex mLock;
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private:
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PointerController* mPointerController GUARDED_BY(mLock);
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};
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sp<DisplayInfoListener> mDisplayInfoListener;
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const WindowListenerConsumer mUnregisterWindowInfosListener;
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const ui::Transform& getTransformForDisplayLocked(int displayId) const REQUIRES(getLock());
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void clearSpotsLocked() REQUIRES(getLock());
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};
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} // namespace android
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#endif // _UI_POINTER_CONTROLLER_H
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