Introduce PointerChoreographer stage in C++
PointerChoreographer will be the new inputflinger component responsible
for managing the pointer icons drawn on the screen.
In this CL, we set up the PointerChoreographer InputListener stage,
which will be created when the choreographer is enabled.
Bug: 293587049
Bug: 278783893
Test: adb shell setprop persist.input.enable_pointer_choreographer 1;
boot
Change-Id: Ice610055ef7ffc44c7c3e1d3904715eabda31a86
diff --git a/services/inputflinger/include/PointerChoreographerPolicyInterface.h b/services/inputflinger/include/PointerChoreographerPolicyInterface.h
new file mode 100644
index 0000000..9e020c7
--- /dev/null
+++ b/services/inputflinger/include/PointerChoreographerPolicyInterface.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2023 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.
+ */
+
+#pragma once
+
+#include "PointerControllerInterface.h"
+
+namespace android {
+
+/**
+ * The PointerChoreographer policy interface.
+ *
+ * This is the interface that PointerChoreographer uses to talk to Window Manager and other
+ * system components.
+ */
+class PointerChoreographerPolicyInterface {
+public:
+ virtual ~PointerChoreographerPolicyInterface() = default;
+
+ /**
+ * A factory method for PointerController. The PointerController implementation has
+ * dependencies on a graphical library - libgui, used to draw icons on the screen - which
+ * isn't available for the host. Since we want libinputflinger and its test to be buildable
+ * for and runnable on the host, the PointerController implementation must be in a separate
+ * library, libinputservice, that has the additional dependencies. The PointerController
+ * will be mocked when testing PointerChoreographer.
+ */
+ virtual std::shared_ptr<PointerControllerInterface> createPointerController() = 0;
+};
+
+} // namespace android