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60 lines
2.6 KiB
Objective-C
60 lines
2.6 KiB
Objective-C
//
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// Copyright (c) 2017 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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#import "Signal-Swift.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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alertActionHandler:(nullable void (^)())alertActionHandler
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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(@"MISSING_CAMERA_PERMISSION_TITLE", @"Alert title")
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message:NSLocalizedString(@"MISSING_CAMERA_PERMISSION_MESSAGE", @"Alert body")
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preferredStyle:UIAlertControllerStyleAlert];
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NSString *settingsTitle = NSLocalizedString(@"OPEN_SETTINGS_BUTTON", @"Button text which opens the settings app");
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UIAlertAction *openSettingsAction = [UIAlertAction actionWithTitle:settingsTitle style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
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[[UIApplication sharedApplication] openSystemSettings];
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if (alertActionHandler) {
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alertActionHandler();
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}
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}];
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[alert addAction:openSettingsAction];
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UIAlertAction *dismissAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"DISMISS_BUTTON_TEXT", nil)
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style:UIAlertActionStyleCancel
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handler:alertActionHandler];
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[alert addAction:dismissAction];
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[self presentViewController:alert animated:YES completion:nil];
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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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dispatch_async(dispatch_get_main_queue(), ^{
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permissionsGrantedCallback();
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});
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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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