/*
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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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#define LOG_TAG "InputManager"
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//#define LOG_NDEBUG 0
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#include "InputManager.h"
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#include "InputReaderFactory.h"
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#include <binder/IPCThreadState.h>
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#include <log/log.h>
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#include <unordered_map>
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#include <private/android_filesystem_config.h>
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namespace android {
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InputManager::InputManager(
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const sp<InputReaderPolicyInterface>& readerPolicy,
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const sp<InputDispatcherPolicyInterface>& dispatcherPolicy) {
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mDispatcher = new InputDispatcher(dispatcherPolicy);
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mClassifier = new InputClassifier(mDispatcher);
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mReader = createInputReader(readerPolicy, mClassifier);
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initialize();
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}
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InputManager::~InputManager() {
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stop();
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}
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void InputManager::initialize() {
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mReaderThread = new InputReaderThread(mReader);
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mDispatcherThread = new InputDispatcherThread(mDispatcher);
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}
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status_t InputManager::start() {
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status_t result = mDispatcherThread->run("InputDispatcher", PRIORITY_URGENT_DISPLAY);
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if (result) {
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ALOGE("Could not start InputDispatcher thread due to error %d.", result);
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return result;
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}
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result = mReaderThread->run("InputReader", PRIORITY_URGENT_DISPLAY);
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if (result) {
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ALOGE("Could not start InputReader thread due to error %d.", result);
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mDispatcherThread->requestExit();
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return result;
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}
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return OK;
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}
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status_t InputManager::stop() {
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status_t result = mReaderThread->requestExitAndWait();
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if (result) {
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ALOGW("Could not stop InputReader thread due to error %d.", result);
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}
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result = mDispatcherThread->requestExitAndWait();
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if (result) {
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ALOGW("Could not stop InputDispatcher thread due to error %d.", result);
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}
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return OK;
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}
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sp<InputReaderInterface> InputManager::getReader() {
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return mReader;
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}
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sp<InputClassifierInterface> InputManager::getClassifier() {
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return mClassifier;
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}
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sp<InputDispatcherInterface> InputManager::getDispatcher() {
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return mDispatcher;
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}
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class BinderWindowHandle : public InputWindowHandle {
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public:
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BinderWindowHandle(const InputWindowInfo& info) {
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mInfo = info;
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}
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bool updateInfo() override {
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return true;
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}
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};
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void InputManager::setInputWindows(const std::vector<InputWindowInfo>& infos,
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const sp<ISetInputWindowsListener>& setInputWindowsListener) {
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std::unordered_map<int32_t, std::vector<sp<InputWindowHandle>>> handlesPerDisplay;
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std::vector<sp<InputWindowHandle>> handles;
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for (const auto& info : infos) {
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handlesPerDisplay.emplace(info.displayId, std::vector<sp<InputWindowHandle>>());
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handlesPerDisplay[info.displayId].push_back(new BinderWindowHandle(info));
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}
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for (auto const& i : handlesPerDisplay) {
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mDispatcher->setInputWindows(i.second, i.first, setInputWindowsListener);
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}
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}
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void InputManager::transferTouchFocus(const sp<IBinder>& fromToken, const sp<IBinder>& toToken) {
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mDispatcher->transferTouchFocus(fromToken, toToken);
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}
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// Used by tests only.
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void InputManager::registerInputChannel(const sp<InputChannel>& channel) {
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IPCThreadState* ipc = IPCThreadState::self();
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const int uid = ipc->getCallingUid();
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if (uid != AID_SHELL && uid != AID_ROOT) {
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ALOGE("Invalid attempt to register input channel over IPC"
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"from non shell/root entity (PID: %d)", ipc->getCallingPid());
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return;
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}
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mDispatcher->registerInputChannel(channel, false);
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}
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void InputManager::unregisterInputChannel(const sp<InputChannel>& channel) {
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mDispatcher->unregisterInputChannel(channel);
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}
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} // namespace android
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