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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 <PointerControllerInterface.h>
#include <gui/DisplayEventReceiver.h>
#include <gui/WindowInfosUpdate.h>
#include <input/DisplayViewport.h>
#include <input/Input.h>
#include <utils/BitSet.h>
#include <utils/Looper.h>
#include <utils/RefBase.h>
#include <map>
#include <memory>
#include <string>
#include <vector>
#include "MouseCursorController.h"
#include "PointerControllerContext.h"
#include "SpriteController.h"
#include "TouchSpotController.h"
namespace android {
/*
* Tracks pointer movements and draws the pointer sprite to a surface.
*
* Handles pointer acceleration and animation.
*/
class PointerController : public PointerControllerInterface {
public:
static std::shared_ptr<PointerController> create(
const sp<PointerControllerPolicyInterface>& policy, const sp<Looper>& looper,
SpriteController& spriteController, ControllerType type);
~PointerController() override;
vec2 move(float deltaX, float deltaY) override;
void setPosition(float x, float y) override;
vec2 getPosition() const override;
ui::LogicalDisplayId getDisplayId() const override;
void fade(Transition transition) override;
void unfade(Transition transition) override;
void setDisplayViewport(const DisplayViewport& viewport) override;
void setPresentation(Presentation presentation) override;
void setSpots(const PointerCoords* spotCoords, const uint32_t* spotIdToIndex,
BitSet32 spotIdBits, ui::LogicalDisplayId displayId) override;
void clearSpots() override;
void updatePointerIcon(PointerIconStyle iconId) override;
void setCustomPointerIcon(const SpriteIcon& icon) override;
void setSkipScreenshotFlagForDisplay(ui::LogicalDisplayId displayId) override;
void clearSkipScreenshotFlags() override;
ui::Transform getDisplayTransform() const override;
virtual void setInactivityTimeout(InactivityTimeout inactivityTimeout);
void doInactivityTimeout();
void reloadPointerResources();
void onDisplayViewportsUpdated(const std::vector<DisplayViewport>& viewports);
void onDisplayInfosChangedLocked(const std::vector<gui::DisplayInfo>& displayInfos)
REQUIRES(getLock());
std::string dump() override;
protected:
using WindowListenerRegisterConsumer = std::function<std::vector<gui::DisplayInfo>(
const sp<android::gui::WindowInfosListener>&)>;
using WindowListenerUnregisterConsumer =
std::function<void(const sp<android::gui::WindowInfosListener>&)>;
// Constructor used to test WindowInfosListener registration.
PointerController(const sp<PointerControllerPolicyInterface>& policy, const sp<Looper>& looper,
SpriteController& spriteController,
const WindowListenerRegisterConsumer& registerListener,
WindowListenerUnregisterConsumer unregisterListener);
PointerController(const sp<PointerControllerPolicyInterface>& policy, const sp<Looper>& looper,
SpriteController& spriteController);
private:
friend PointerControllerContext::LooperCallback;
friend PointerControllerContext::MessageHandler;
// PointerController's DisplayInfoListener can outlive the PointerController because when the
// listener is registered, a strong pointer to the listener (which can extend its lifecycle)
// is given away. To avoid the small overhead of using two separate locks in these two objects,
// we use the DisplayInfoListener's lock in PointerController.
std::mutex& getLock() const;
PointerControllerContext mContext;
MouseCursorController mCursorController;
struct Locked {
Presentation presentation;
ui::LogicalDisplayId pointerDisplayId = ui::LogicalDisplayId::INVALID;
std::vector<gui::DisplayInfo> mDisplayInfos;
std::unordered_map<ui::LogicalDisplayId, TouchSpotController> spotControllers;
std::unordered_set<ui::LogicalDisplayId> displaysToSkipScreenshot;
} mLocked GUARDED_BY(getLock());
class DisplayInfoListener : public gui::WindowInfosListener {
public:
explicit DisplayInfoListener(PointerController* pc) : mPointerController(pc){};
void onWindowInfosChanged(const gui::WindowInfosUpdate&) override;
void onPointerControllerDestroyed();
// This lock is also used by PointerController. See PointerController::getLock().
std::mutex mLock;
private:
PointerController* mPointerController GUARDED_BY(mLock);
};
sp<DisplayInfoListener> mDisplayInfoListener;
const WindowListenerUnregisterConsumer mUnregisterWindowInfosListener;
const ui::Transform& getTransformForDisplayLocked(ui::LogicalDisplayId displayId) const
REQUIRES(getLock());
void clearSpotsLocked() REQUIRES(getLock());
};
class MousePointerController : public PointerController {
public:
/** A version of PointerController that controls one mouse pointer. */
MousePointerController(const sp<PointerControllerPolicyInterface>& policy,
const sp<Looper>& looper, SpriteController& spriteController);
~MousePointerController() override;
void setPresentation(Presentation) override {
LOG_ALWAYS_FATAL("Should not be called");
}
void setSpots(const PointerCoords*, const uint32_t*, BitSet32, ui::LogicalDisplayId) override {
LOG_ALWAYS_FATAL("Should not be called");
}
void clearSpots() override {
LOG_ALWAYS_FATAL("Should not be called");
}
};
class TouchPointerController : public PointerController {
public:
/** A version of PointerController that controls touch spots. */
TouchPointerController(const sp<PointerControllerPolicyInterface>& policy,
const sp<Looper>& looper, SpriteController& spriteController);
~TouchPointerController() override;
vec2 move(float, float) override {
LOG_ALWAYS_FATAL("Should not be called");
}
void setPosition(float, float) override {
LOG_ALWAYS_FATAL("Should not be called");
}
vec2 getPosition() const override {
LOG_ALWAYS_FATAL("Should not be called");
}
ui::LogicalDisplayId getDisplayId() const override {
LOG_ALWAYS_FATAL("Should not be called");
}
void fade(Transition) override {
LOG_ALWAYS_FATAL("Should not be called");
}
void unfade(Transition) override {
LOG_ALWAYS_FATAL("Should not be called");
}
void setDisplayViewport(const DisplayViewport&) override {
LOG_ALWAYS_FATAL("Should not be called");
}
void setPresentation(Presentation) override {
LOG_ALWAYS_FATAL("Should not be called");
}
void updatePointerIcon(PointerIconStyle) override {
LOG_ALWAYS_FATAL("Should not be called");
}
void setCustomPointerIcon(const SpriteIcon&) override {
LOG_ALWAYS_FATAL("Should not be called");
}
// fade() should not be called by inactivity timeout. Do nothing.
void setInactivityTimeout(InactivityTimeout) override {}
};
class StylusPointerController : public PointerController {
public:
/** A version of PointerController that controls one stylus pointer. */
StylusPointerController(const sp<PointerControllerPolicyInterface>& policy,
const sp<Looper>& looper, SpriteController& spriteController);
~StylusPointerController() override;
void setPresentation(Presentation) override {
LOG_ALWAYS_FATAL("Should not be called");
}
void setSpots(const PointerCoords*, const uint32_t*, BitSet32, ui::LogicalDisplayId) override {
LOG_ALWAYS_FATAL("Should not be called");
}
void clearSpots() override {
LOG_ALWAYS_FATAL("Should not be called");
}
};
} // namespace android
#endif // _UI_POINTER_CONTROLLER_H
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