/// <summary>
/// Setups the controller.
/// </summary>
/// <param name="mpDelegate">The mp delegate.</param>
/// <param name="sourceType">Type of the source.</param>
/// <param name="mediaType">Type of the media.</param>
/// <param name="options">The options.</param>
/// <returns>MediaPickerController.</returns>
private static MediaPickerController SetupController(
MediaPickerDelegate mpDelegate,
UIImagePickerControllerSourceType sourceType,
string mediaType,
MediaStorageOptions options = null)
{
var picker = new MediaPickerController(mpDelegate)
{
MediaTypes = new[] { mediaType }, SourceType = sourceType
};
if (sourceType == UIImagePickerControllerSourceType.Camera)
{
if (mediaType == TypeImage && options is CameraMediaStorageOptions)
{
picker.CameraDevice = GetCameraDevice(((CameraMediaStorageOptions)options).DefaultCamera);
picker.CameraCaptureMode = UIImagePickerControllerCameraCaptureMode.Photo;
}
else if (mediaType == TypeMovie && options is VideoMediaStorageOptions)
{
var voptions = (VideoMediaStorageOptions)options;
picker.CameraDevice = GetCameraDevice(voptions.DefaultCamera);
picker.CameraCaptureMode = UIImagePickerControllerCameraCaptureMode.Video;
picker.VideoQuality = GetQuailty(voptions.Quality);
picker.VideoMaximumDuration = voptions.DesiredLength.TotalSeconds;
}
}
return(picker);
}
/// <summary>
/// Creates the media intent.
/// </summary>
/// <param name="id">The identifier.</param>
/// <param name="type">The type of intent.</param>
/// <param name="action">The action.</param>
/// <param name="options">The options.</param>
/// <param name="tasked">if set to <c>true</c> [tasked].</param>
/// <returns>Intent to create media.</returns>
private Intent CreateMediaIntent(int id, string type, string action, MediaStorageOptions options, bool tasked = true)
{
var pickerIntent = new Intent(Context, typeof(MediaPickerActivity));
pickerIntent.SetFlags(ActivityFlags.NewTask);
pickerIntent.PutExtra(MediaPickerActivity.ExtraId, id);
pickerIntent.PutExtra(MediaPickerActivity.ExtraType, type);
pickerIntent.PutExtra(MediaPickerActivity.ExtraAction, action);
pickerIntent.PutExtra(MediaPickerActivity.ExtraTasked, tasked);
if (options != null)
{
pickerIntent.PutExtra(MediaPickerActivity.ExtraPath, options.Directory);
pickerIntent.PutExtra(MediaStore.Images.ImageColumns.Title, options.Name);
var vidOptions = options as VideoMediaStorageOptions;
if (vidOptions != null)
{
pickerIntent.PutExtra(MediaStore.ExtraDurationLimit, (int)vidOptions.DesiredLength.TotalSeconds);
pickerIntent.PutExtra(MediaStore.ExtraVideoQuality, (int)vidOptions.Quality);
}
}
return(pickerIntent);
}
/// <summary>
/// Gets the output file name with folder.
/// </summary>
/// <param name="self">The self.</param>
/// <param name="rootPath">The root folder.</param>
/// <returns>System.String.</returns>
public static string GetMediaFileWithPath(this MediaStorageOptions self, string rootPath)
{
var isPhoto = !(self is VideoMediaStorageOptions);
var name = (self != null) ? self.Name : null;
var directory = (self != null) ? self.Directory : null;
return(MediaFileHelpers.GetMediaFileWithPath(isPhoto, rootPath, directory, name));
}
/// <summary>
/// Verifies the options.
/// </summary>
/// <param name="options">The options.</param>
/// <exception cref="ArgumentNullException">options</exception>
/// <exception cref="ArgumentException">options.Directory must be a relative path;options</exception>
private static void VerifyOptions(MediaStorageOptions options)
{
if (options == null)
{
throw new ArgumentNullException("options");
}
if (options.Directory != null && Path.IsPathRooted(options.Directory))
{
throw new ArgumentException("options.Directory must be a relative path", "options");
}
}
/// <summary>
/// Gets the unique filepath.
/// </summary>
/// <param name="self">The self.</param>
/// <param name="rootPath">The root folder.</param>
/// <param name="checkExists">The check exists.</param>
/// <returns>System.String.</returns>
public static string GetUniqueMediaFileWithPath(this MediaStorageOptions self, string rootPath,
Func <string, bool> checkExists)
{
var isPhoto = !(self is VideoMediaStorageOptions);
var path = self.GetMediaFileWithPath(rootPath);
var folder = Path.GetDirectoryName(path);
var name = Path.GetFileNameWithoutExtension(path);
return(MediaFileHelpers.GetUniqueMediaFileWithPath(isPhoto, folder, name, checkExists));
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaPickerDelegate"/> class.
/// </summary>
/// <param name="viewController">The view controller.</param>
/// <param name="sourceType">Type of the source.</param>
/// <param name="options">The options.</param>
internal MediaPickerDelegate(
UIViewController viewController,
UIImagePickerControllerSourceType sourceType,
MediaStorageOptions options)
{
_viewController = viewController;
_source = sourceType;
_options = options ?? new CameraMediaStorageOptions();
if (viewController != null)
{
UIDevice.CurrentDevice.BeginGeneratingDeviceOrientationNotifications();
_observer = NSNotificationCenter.DefaultCenter.AddObserver(UIDevice.OrientationDidChangeNotification, DidRotate);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaPickerDelegate"/> class.
/// </summary>
/// <param name="viewController">The view controller.</param>
/// <param name="sourceType">Type of the source.</param>
/// <param name="options">The options.</param>
internal MediaPickerDelegate(
UIViewController viewController,
UIImagePickerControllerSourceType sourceType,
MediaStorageOptions options)
{
_viewController = viewController;
_source = sourceType;
_options = options ?? new CameraMediaStorageOptions();
if (viewController != null)
{
UIDevice.CurrentDevice.BeginGeneratingDeviceOrientationNotifications();
_observer = NSNotificationCenter.DefaultCenter.AddObserver(UIDevice.OrientationDidChangeNotification, DidRotate);
}
}
/// <summary>
/// Takes the media asynchronous.
/// </summary>
/// <param name="type">The type of intent.</param>
/// <param name="action">The action.</param>
/// <param name="options">The options.</param>
/// <returns>Task with a return type of MediaFile.</returns>
/// <exception cref="System.InvalidOperationException">Only one operation can be active at a time.</exception>
private Task <MediaFile> TakeMediaAsync(string type, string action, MediaStorageOptions options)
{
var id = GetRequestId();
var ntcs = new TaskCompletionSource <MediaFile>(id);
_completionSource = ntcs;
//if (Interlocked.CompareExchange(ref _completionSource, ntcs, null) != null)
//{
// throw new InvalidOperationException("Only one operation can be active at a time");
//}
Context.StartActivity(CreateMediaIntent(id, type, action, options));
EventHandler <MediaPickedEventArgs> handler = null;
handler = (s, e) =>
{
var tcs = _completionSource; //Interlocked.Exchange(ref _completionSource, null);
MediaPickerActivity.MediaPicked -= handler;
if (e.RequestId != id)
{
return;
}
if (e.Error != null)
{
tcs.SetException(e.Error);
}
else if (e.IsCanceled)
{
tcs.SetCanceled();
}
else
{
tcs.SetResult(e.Media);
}
_completionSource = null;
};
MediaPickerActivity.MediaPicked += handler;
return(ntcs.Task);
}
/// <summary>
/// Verifies the options.
/// </summary>
/// <param name="self">The self.</param>
/// <exception cref="System.ArgumentNullException">options</exception>
/// <exception cref="System.ArgumentException">options.Directory must be a relative folder;options</exception>
public static void VerifyOptions(this MediaStorageOptions self)
{
if (self == null)
{
throw new ArgumentNullException("self");
}
//if (!Enum.IsDefined (typeof(MediaFileStoreLocation), options.Location))
// throw new ArgumentException ("options.Location is not a member of MediaFileStoreLocation");
//if (options.Location == MediaFileStoreLocation.Local)
//{
//if (String.IsNullOrWhiteSpace (options.Directory))
// throw new ArgumentNullException ("options", "For local storage, options.Directory must be set");
if (Path.IsPathRooted(self.Directory))
{
throw new ArgumentException("options.Directory must be a relative folder", "self");
}
//}
}
/// <summary>
/// Verifies the options.
/// </summary>
/// <param name="options">The options.</param>
/// <exception cref="ArgumentNullException">options</exception>
/// <exception cref="ArgumentException">options.Directory must be a relative path;options</exception>
private static void VerifyOptions(MediaStorageOptions options)
{
if (options == null)
{
throw new ArgumentNullException("options");
}
if (options.Directory != null && Path.IsPathRooted(options.Directory))
{
throw new ArgumentException("options.Directory must be a relative path", "options");
}
}
/// <summary>
/// Setups the controller.
/// </summary>
/// <param name="mpDelegate">The mp delegate.</param>
/// <param name="sourceType">Type of the source.</param>
/// <param name="mediaType">Type of the media.</param>
/// <param name="options">The options.</param>
/// <returns>MediaPickerController.</returns>
private static MediaPickerController SetupController(
MediaPickerDelegate mpDelegate,
UIImagePickerControllerSourceType sourceType,
string mediaType,
MediaStorageOptions options = null)
{
var picker = new MediaPickerController(mpDelegate) { MediaTypes = new[] { mediaType }, SourceType = sourceType};
if (sourceType == UIImagePickerControllerSourceType.Camera)
{
if (mediaType == TypeImage && options is CameraMediaStorageOptions)
{
picker.CameraDevice = GetCameraDevice(((CameraMediaStorageOptions)options).DefaultCamera);
picker.CameraCaptureMode = UIImagePickerControllerCameraCaptureMode.Photo;
}
else if (mediaType == TypeMovie && options is VideoMediaStorageOptions)
{
var voptions = (VideoMediaStorageOptions)options;
picker.CameraDevice = GetCameraDevice (voptions.DefaultCamera);
picker.CameraCaptureMode = UIImagePickerControllerCameraCaptureMode.Video;
picker.VideoQuality = GetQuailty(voptions.Quality);
picker.VideoMaximumDuration = voptions.DesiredLength.TotalSeconds;
}
}
return picker;
}
/// <summary>
/// Gets the media asynchronous.
/// </summary>
/// <param name="sourceType">Type of the source.</param>
/// <param name="mediaType">Type of the media.</param>
/// <param name="options">The options.</param>
/// <returns>Task<MediaFile>.</returns>
/// <exception cref="InvalidOperationException">
/// There's no current active window
/// or
/// Could not find current view controller
/// or
/// Only one operation can be active at at time
/// </exception>
private Task<MediaFile> GetMediaAsync(
UIImagePickerControllerSourceType sourceType,
string mediaType,
MediaStorageOptions options = null)
{
var window = UIApplication.SharedApplication.KeyWindow;
if (window == null)
{
throw new InvalidOperationException("There's no current active window");
}
var viewController = window.RootViewController;
#if __IOS_10__
if (viewController == null || (viewController.PresentedViewController != null && viewController.PresentedViewController.GetType() == typeof(UIAlertController)))
{
window =
UIApplication.SharedApplication.Windows.OrderByDescending(w => w.WindowLevel)
.FirstOrDefault(w => w.RootViewController != null);
if (window == null)
{
throw new InvalidOperationException("Could not find current view controller");
}
viewController = window.RootViewController;
}
#endif
while (viewController.PresentedViewController != null)
{
viewController = viewController.PresentedViewController;
}
var ndelegate = new MediaPickerDelegate(viewController, sourceType, options);
var od = Interlocked.CompareExchange(ref _pickerDelegate, ndelegate, null);
if (od != null)
{
throw new InvalidOperationException("Only one operation can be active at at time");
}
var picker = SetupController(ndelegate, sourceType, mediaType, options);
if (UIDevice.CurrentDevice.UserInterfaceIdiom == UIUserInterfaceIdiom.Pad
&& sourceType == UIImagePickerControllerSourceType.PhotoLibrary)
{
ndelegate.Popover = new UIPopoverController(picker)
{
Delegate = new MediaPickerPopoverDelegate(ndelegate, picker)
};
ndelegate.DisplayPopover();
}
else
{
viewController.PresentViewController(picker, true, null);
}
return ndelegate.Task.ContinueWith(
t =>
{
if (_popover != null)
{
_popover.Dispose();
_popover = null;
}
Interlocked.Exchange(ref _pickerDelegate, null);
return t;
}).Unwrap();
}
/// <summary>
/// Gets the media asynchronous.
/// </summary>
/// <param name="sourceType">Type of the source.</param>
/// <param name="mediaType">Type of the media.</param>
/// <param name="options">The options.</param>
/// <returns>Task<MediaFile>.</returns>
/// <exception cref="InvalidOperationException">
/// There's no current active window
/// or
/// Could not find current view controller
/// or
/// Only one operation can be active at at time
/// </exception>
private Task <MediaFile> GetMediaAsync(
UIImagePickerControllerSourceType sourceType,
string mediaType,
MediaStorageOptions options = null)
{
var window = UIApplication.SharedApplication.KeyWindow;
if (window == null)
{
throw new InvalidOperationException("There's no current active window");
}
var viewController = window.RootViewController;
if (viewController == null)
{
window = UIApplication.SharedApplication.Windows.OrderByDescending(w => w.WindowLevel).FirstOrDefault(w => w.RootViewController != null);
viewController = window.RootViewController;
}
#if __IOS_10__
if (viewController == null || (viewController.PresentedViewController != null && viewController.PresentedViewController.GetType() == typeof(UIAlertController)))
{
window =
UIApplication.SharedApplication.Windows.OrderByDescending(w => w.WindowLevel)
.FirstOrDefault(w => w.RootViewController != null);
if (window == null)
{
throw new InvalidOperationException("Could not find current view controller");
}
viewController = window.RootViewController;
}
#endif
while (viewController.PresentedViewController != null)
{
viewController = viewController.PresentedViewController;
}
var ndelegate = new MediaPickerDelegate(viewController, sourceType, options);
//var od = Interlocked.CompareExchange(ref _pickerDelegate, ndelegate, null);
//if (od != null)
//{
// throw new InvalidOperationException("Only one operation can be active at at time");
//}
_pickerDelegate = ndelegate;
var picker = SetupController(ndelegate, sourceType, mediaType, options);
if (UIDevice.CurrentDevice.UserInterfaceIdiom == UIUserInterfaceIdiom.Pad &&
sourceType == UIImagePickerControllerSourceType.PhotoLibrary)
{
ndelegate.Popover = new UIPopoverController(picker)
{
Delegate = new MediaPickerPopoverDelegate(ndelegate, picker)
};
ndelegate.DisplayPopover();
}
else
{
viewController.PresentViewController(picker, true, null);
}
return(ndelegate.Task.ContinueWith(
t =>
{
if (_popover != null)
{
_popover.Dispose();
_popover = null;
}
//Interlocked.Exchange(ref _pickerDelegate, null);
_pickerDelegate = null;
return t;
}).Unwrap());
}
/// <summary>
/// Takes the media asynchronous.
/// </summary>
/// <param name="type">The type of intent.</param>
/// <param name="action">The action.</param>
/// <param name="options">The options.</param>
/// <returns>Task with a return type of MediaFile.</returns>
/// <exception cref="System.InvalidOperationException">Only one operation can be active at a time.</exception>
private Task<MediaFile> TakeMediaAsync(string type, string action, MediaStorageOptions options)
{
var id = GetRequestId();
var ntcs = new TaskCompletionSource<MediaFile>(id);
if (Interlocked.CompareExchange(ref _completionSource, ntcs, null) != null)
{
throw new InvalidOperationException("Only one operation can be active at a time");
}
Context.StartActivity(CreateMediaIntent(id, type, action, options));
EventHandler<MediaPickedEventArgs> handler = null;
handler = (s, e) =>
{
var tcs = Interlocked.Exchange(ref _completionSource, null);
MediaPickerActivity.MediaPicked -= handler;
if (e.RequestId != id)
{
return;
}
if (e.Error != null)
{
tcs.SetException(e.Error);
}
else if (e.IsCanceled)
{
tcs.SetCanceled();
}
else
{
tcs.SetResult(e.Media);
}
};
MediaPickerActivity.MediaPicked += handler;
return ntcs.Task;
}
/// <summary>
/// Creates the media intent.
/// </summary>
/// <param name="id">The identifier.</param>
/// <param name="type">The type of intent.</param>
/// <param name="action">The action.</param>
/// <param name="options">The options.</param>
/// <param name="tasked">if set to <c>true</c> [tasked].</param>
/// <returns>Intent to create media.</returns>
private Intent CreateMediaIntent(int id, string type, string action, MediaStorageOptions options, bool tasked = true)
{
var pickerIntent = new Intent(Context, typeof(MediaPickerActivity));
pickerIntent.SetFlags(ActivityFlags.NewTask);
pickerIntent.PutExtra(MediaPickerActivity.ExtraId, id);
pickerIntent.PutExtra(MediaPickerActivity.ExtraType, type);
pickerIntent.PutExtra(MediaPickerActivity.ExtraAction, action);
pickerIntent.PutExtra(MediaPickerActivity.ExtraTasked, tasked);
if (options != null)
{
pickerIntent.PutExtra(MediaPickerActivity.ExtraPath, options.Directory);
pickerIntent.PutExtra(MediaStore.Images.ImageColumns.Title, options.Name);
var vidOptions = options as VideoMediaStorageOptions;
if (vidOptions != null)
{
pickerIntent.PutExtra(MediaStore.ExtraDurationLimit, (int) vidOptions.DesiredLength.TotalSeconds);
pickerIntent.PutExtra(MediaStore.ExtraVideoQuality, (int) vidOptions.Quality);
}
}
return pickerIntent;
}
