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47 lines
2 KiB
Objective-C
47 lines
2 KiB
Objective-C
//
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// UIViewController+CameraPermissions.m
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// Signal
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//
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// Created by Jarosław Pawlak on 18.10.2016.
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// Copyright © 2016 Open Whisper Systems. All rights reserved.
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//
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#import "UIUtil.h"
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#import "UIViewController+CameraPermissions.h"
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#import <AVFoundation/AVFoundation.h>
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NS_ASSUME_NONNULL_BEGIN
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@implementation UIViewController (CameraPermissions)
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-(void)ows_askForCameraPermissions:(void(^)())permissionsGrantedCallback
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{
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if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
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DDLogError(@"Camera ImagePicker source not available");
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return;
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}
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AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
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if (status == AVAuthorizationStatusDenied) {
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UIAlertController* alert = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"CAMERA_PERMISSION_TITLE",nil) message:NSLocalizedString(@"CAMERA_PERMISSION_MESSAGE",nil) preferredStyle:UIAlertControllerStyleAlert];
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[alert addAction:[UIAlertAction actionWithTitle:NSLocalizedString(@"CAMERA_PERMISSION_PROCEED",nil) style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
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[[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
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}]];
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[alert addAction:[UIAlertAction actionWithTitle:NSLocalizedString(@"CAMERA_PERMISSION_CANCEL",nil) style:UIAlertActionStyleCancel handler:nil]];
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[self presentViewController:alert animated:YES completion:[UIUtil modalCompletionBlock]];
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} else if (status == AVAuthorizationStatusAuthorized) {
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permissionsGrantedCallback();
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} else if (status == AVAuthorizationStatusNotDetermined) {
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[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
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if (granted) {
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permissionsGrantedCallback();
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}
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}];
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} else {
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DDLogError(@"Unknown AVAuthorizationStatus: %ld", (long)status);
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}
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}
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@end
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NS_ASSUME_NONNULL_END
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