1 files changed, 118 insertions, 0 deletions
diff --git a/libs/input/MouseCursorController.h b/libs/input/MouseCursorController.h
new file mode 100644
index 000000000000..e6dfc4c6f99a
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+++ b/libs/input/MouseCursorController.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2020 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_MOUSE_CURSOR_CONTROLLER_H
+#define _UI_MOUSE_CURSOR_CONTROLLER_H
+
+#include <gui/DisplayEventReceiver.h>
+#include <input/DisplayViewport.h>
+#include <input/Input.h>
+#include <ui/DisplayInfo.h>
+#include <utils/BitSet.h>
+#include <utils/Looper.h>
+#include <utils/RefBase.h>
+
+#include <functional>
+#include <map>
+#include <memory>
+#include <vector>
+
+#include "PointerControllerContext.h"
+#include "SpriteController.h"
+
+namespace android {
+
+/*
+ * Helper class for PointerController that specifically handles
+ * mouse cursor resources and actions.
+ */
+class MouseCursorController {
+public:
+    MouseCursorController(PointerControllerContext& context);
+    ~MouseCursorController();
+
+    bool getBounds(float* outMinX, float* outMinY, float* outMaxX, float* outMaxY) const;
+    void move(float deltaX, float deltaY);
+    void setButtonState(int32_t buttonState);
+    int32_t getButtonState() const;
+    void setPosition(float x, float y);
+    void getPosition(float* outX, float* outY) const;
+    int32_t getDisplayId() const;
+    void fade(PointerControllerInterface::Transition transition);
+    void unfade(PointerControllerInterface::Transition transition);
+    void setDisplayViewport(const DisplayViewport& viewport, bool getAdditionalMouseResources);
+
+    void updatePointerIcon(int32_t iconId);
+    void setCustomPointerIcon(const SpriteIcon& icon);
+    void reloadPointerResources(bool getAdditionalMouseResources);
+
+    void getAdditionalMouseResources();
+    bool isViewportValid();
+
+    bool doAnimations(nsecs_t timestamp);
+
+    bool resourcesLoaded();
+
+private:
+    mutable std::mutex mLock;
+
+    PointerResources mResources;
+
+    PointerControllerContext& mContext;
+
+    struct Locked {
+        DisplayViewport viewport;
+
+        size_t animationFrameIndex;
+        nsecs_t lastFrameUpdatedTime;
+
+        int32_t pointerFadeDirection;
+        float pointerX;
+        float pointerY;
+        float pointerAlpha;
+        sp<Sprite> pointerSprite;
+        SpriteIcon pointerIcon;
+        bool updatePointerIcon;
+
+        bool resourcesLoaded;
+
+        std::map<int32_t, SpriteIcon> additionalMouseResources;
+        std::map<int32_t, PointerAnimation> animationResources;
+
+        int32_t requestedPointerType;
+
+        int32_t buttonState;
+
+        bool animating{false};
+
+    } mLocked GUARDED_BY(mLock);
+
+    bool getBoundsLocked(float* outMinX, float* outMinY, float* outMaxX, float* outMaxY) const;
+    void setPositionLocked(float x, float y);
+
+    void updatePointerLocked();
+
+    void loadResourcesLocked(bool getAdditionalMouseResources);
+
+    bool doBitmapAnimationLocked(nsecs_t timestamp);
+    bool doFadingAnimationLocked(nsecs_t timestamp);
+
+    void startAnimationLocked();
+};
+
+} // namespace android
+
+#endif // _UI_MOUSE_CURSOR_CONTROLLER_H