mirror of
https://github.com/kidfromjupiter/nearby.git
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96 lines
4.0 KiB
Plaintext
96 lines
4.0 KiB
Plaintext
// Copyright 2025 Google LLC
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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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// https://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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#import "internal/platform/implementation/apple/app_lifecycle_monitor.h"
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#import <Foundation/Foundation.h>
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#include <utility>
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#if TARGET_OS_IPHONE
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#import <UIKit/UIKit.h>
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#endif // TARGET_OS_IPHONE
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#import "internal/platform/implementation/apple/GNCNotificationCenter.h"
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#import "internal/platform/implementation/apple/Log/GNCLogger.h"
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namespace nearby {
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namespace apple {
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AppLifecycleMonitor::AppLifecycleMonitor(
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std::function<void(AppLifecycleState)> state_updated_callback)
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: AppLifecycleMonitor([NSNotificationCenter defaultCenter], std::move(state_updated_callback)) {
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}
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AppLifecycleMonitor::AppLifecycleMonitor(
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id<GNCNotificationCenter> notification_center,
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std::function<void(AppLifecycleState)> state_updated_callback)
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: api::AppLifecycleMonitor(std::move(state_updated_callback)),
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notification_center_(notification_center) {
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// Copy the callback to be captured by the blocks below. This avoids capturing `this` in the
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// blocks, which would lead to a dangling pointer if `this` is destroyed. The block will hold a
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// copy of the callback.
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std::function<void(AppLifecycleState)> callback = state_updated_callback_;
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#if TARGET_OS_IPHONE
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// Register for app lifecycle notifications
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background_observer_ =
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[notification_center_ addObserverForName:UIApplicationDidEnterBackgroundNotification
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object:nil
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queue:nil
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usingBlock:^(NSNotification *notification) {
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GNCLoggerDebug(@"AppLifecycleMonitor: Did enter background.");
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if (callback) {
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callback(AppLifecycleState::kBackground);
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}
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}];
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inactive_observer_ =
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[notification_center_ addObserverForName:UIApplicationWillResignActiveNotification
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object:nil
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queue:nil
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usingBlock:^(NSNotification *notification) {
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GNCLoggerDebug(@"AppLifecycleMonitor: Will enter inactive.");
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if (callback) {
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callback(AppLifecycleState::kInactive);
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}
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}];
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active_observer_ =
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[notification_center_ addObserverForName:UIApplicationDidBecomeActiveNotification
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object:nil
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queue:nil
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usingBlock:^(NSNotification *notification) {
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GNCLoggerDebug(@"AppLifecycleMonitor: Will enter active.");
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if (callback) {
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callback(AppLifecycleState::kActive);
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}
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}];
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#else
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GNCLoggerError(@"Not implemented");
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#endif // TARGET_OS_IPHONE
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}
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AppLifecycleMonitor::~AppLifecycleMonitor() {
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#if TARGET_OS_IPHONE
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if (notification_center_) {
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[notification_center_ removeObserver:background_observer_];
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[notification_center_ removeObserver:active_observer_];
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[notification_center_ removeObserver:inactive_observer_];
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}
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#endif // TARGET_OS_IPHONE
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}
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} // namespace apple
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} // namespace nearby
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