54 lines
2.0 KiB
C++
54 lines
2.0 KiB
C++
/*
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* Copyright (C) 2022 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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#pragma once
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#include "InputListener.h"
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namespace android {
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/**
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* Base interface for an InputListener stage.
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* Blocks unintentional input events. Not thread safe. Must be called from the same
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* thread. All work is performed on the calling threads.
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*/
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class UnwantedInteractionBlockerInterface : public InputListenerInterface {
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public:
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/* Notifies the input reader policy that some input devices have changed
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* and provides information about all current input devices.
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* Important! This call should happen on the same thread as the calls to the
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* InputListenerInterface methods.
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* That is, same thread should call 'notifyMotion' and 'notifyInputDevicesChanged' and
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* 'notifyDeviceReset'. If this architecture changes, we will need to make the implementation
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* of this interface thread-safe.
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*/
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virtual void notifyInputDevicesChanged(const std::vector<InputDeviceInfo>& inputDevices) = 0;
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/**
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* Dump the state of the interaction blocker.
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* This method may be called on any thread (usually by the input manager on a binder thread).
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*/
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virtual void dump(std::string& dump) = 0;
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/* Called by the heatbeat to ensures that the blocker has not deadlocked. */
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virtual void monitor() = 0;
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UnwantedInteractionBlockerInterface() {}
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~UnwantedInteractionBlockerInterface() override {}
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};
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} // namespace android
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