Class CallViewModel

The call bar: the voice call that rings or runs, with answering, declining, hanging up, muting and the loudspeaker, and the caller's video when they send it; it tells about a call for a while after it ends.

Inheritance
object
ObservableObject
ViewModelBase
CallViewModel
Implements
Inherited Members
Namespace: Uniform.Chat.Avalonia.ViewModels
Assembly: Uniform.Chat.Avalonia.dll
Syntax
public sealed class CallViewModel : ViewModelBase, INotifyPropertyChanged, INotifyPropertyChanging, IDisposable

Constructors

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CallViewModel(CallService, IUiDispatcher, GuiPlatform, Func<string, string>, Func<bool>?)

Follow the calls of calls.

Declaration
public CallViewModel(CallService calls, IUiDispatcher ui, GuiPlatform platform, Func<string, string> nameOf, Func<bool>? mayRing = null)
Parameters
Type Name Description
CallService calls

The account's calls.
IUiDispatcher ui

Dispatcher of the user interface thread.
GuiPlatform platform

The platform's audio, permissions, notifications, ringing and keeping calls alive.
Func<string, string> nameOf

Returns a user's display name.
Func<bool> mayRing

Returns whether incoming calls ring and notify, as the settings choose; null always rings.

Properties

AnswerCommand

Gets an IAsyncRelayCommand instance wrapping Uniform.Chat.Avalonia.ViewModels.CallViewModel.AnswerAsync().

Declaration
[ExcludeFromCodeCoverage]
public IAsyncRelayCommand AnswerCommand { get; }
Property Value
Type Description
IAsyncRelayCommand

AnswerWithVideoCommand

Gets an IAsyncRelayCommand instance wrapping Uniform.Chat.Avalonia.ViewModels.CallViewModel.AnswerWithVideoAsync().

Declaration
[ExcludeFromCodeCoverage]
public IAsyncRelayCommand AnswerWithVideoCommand { get; }
Property Value
Type Description
IAsyncRelayCommand
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CameraOff

Declaration
[ObservableProperty]
[NotifyPropertyChangedFor("CameraText")]
[ExcludeFromCodeCoverage]
public bool CameraOff { get; set; }
Property Value
Type Description
bool
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CameraText

Text of the camera button.

Declaration
public string CameraText { get; }
Property Value
Type Description
string
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CanAnswerWithVideo

Declaration
[ObservableProperty]
[ExcludeFromCodeCoverage]
public bool CanAnswerWithVideo { get; set; }
Property Value
Type Description
bool
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CanCall

Whether the platform has audio, so calls can be made.

Declaration
public bool CanCall { get; }
Property Value
Type Description
bool
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CanSwitchCamera

Declaration
[ObservableProperty]
[ExcludeFromCodeCoverage]
public bool CanSwitchCamera { get; set; }
Property Value
Type Description
bool
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CanVideoCall

Whether this device has a camera, so video calls can be made.

Declaration
public bool CanVideoCall { get; }
Property Value
Type Description
bool
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Current

Declaration
[ObservableProperty]
[NotifyPropertyChangedFor("IsVisible")]
[ExcludeFromCodeCoverage]
public VoiceCall? Current { get; set; }
Property Value
Type Description
VoiceCall
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Error

Declaration
[ObservableProperty]
[ExcludeFromCodeCoverage]
public string Error { get; set; }
Property Value
Type Description
string
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FullScreen

Declaration
[ObservableProperty]
[NotifyPropertyChangedFor("ShowsFullScreen", new string[] { "ScreenText" })]
[ExcludeFromCodeCoverage]
public bool FullScreen { get; set; }
Property Value
Type Description
bool

HangupCommand

Gets an IAsyncRelayCommand instance wrapping Uniform.Chat.Avalonia.ViewModels.CallViewModel.HangupAsync().

Declaration
[ExcludeFromCodeCoverage]
public IAsyncRelayCommand HangupCommand { get; }
Property Value
Type Description
IAsyncRelayCommand
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HasEarpiece

Whether the loudspeaker is a choice.

Declaration
public bool HasEarpiece { get; }
Property Value
Type Description
bool
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HasPreview

Declaration
[ObservableProperty]
[NotifyPropertyChangedFor("ShowsVideo", new string[] { "ShowsFullScreen", "MainVideo", "ShowsCornerPreview" })]
[ExcludeFromCodeCoverage]
public bool HasPreview { get; set; }
Property Value
Type Description
bool
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HasVideo

Declaration
[ObservableProperty]
[NotifyPropertyChangedFor("ShowsVideo", new string[] { "ShowsFullScreen", "MainVideo", "ShowsCornerPreview" })]
[ExcludeFromCodeCoverage]
public bool HasVideo { get; set; }
Property Value
Type Description
bool
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IsActive

Declaration
[ObservableProperty]
[ExcludeFromCodeCoverage]
public bool IsActive { get; set; }
Property Value
Type Description
bool
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IsMuted

Declaration
[ObservableProperty]
[NotifyPropertyChangedFor("MuteText")]
[ExcludeFromCodeCoverage]
public bool IsMuted { get; set; }
Property Value
Type Description
bool
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IsRinging

Declaration
[ObservableProperty]
[ExcludeFromCodeCoverage]
public bool IsRinging { get; set; }
Property Value
Type Description
bool
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IsVisible

Whether the bar shows.

Declaration
public bool IsVisible { get; }
Property Value
Type Description
bool
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LocalVideo

This side's camera, small, while it sends.

Declaration
public VideoFeed LocalVideo { get; }
Property Value
Type Description
VideoFeed
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Loudspeaker

Declaration
[ObservableProperty]
[NotifyPropertyChangedFor("SpeakerText")]
[ExcludeFromCodeCoverage]
public bool Loudspeaker { get; set; }
Property Value
Type Description
bool
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MainVideo

The video shown large: the other side's, or this side's own camera while the other side sends none.

Declaration
public VideoFeed MainVideo { get; }
Property Value
Type Description
VideoFeed
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MuteText

Text of the mute button.

Declaration
public string MuteText { get; }
Property Value
Type Description
string
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PeerName

Declaration
[ObservableProperty]
[ExcludeFromCodeCoverage]
public string PeerName { get; set; }
Property Value
Type Description
string

RejectCommand

Gets an IAsyncRelayCommand instance wrapping Uniform.Chat.Avalonia.ViewModels.CallViewModel.RejectAsync().

Declaration
[ExcludeFromCodeCoverage]
public IAsyncRelayCommand RejectCommand { get; }
Property Value
Type Description
IAsyncRelayCommand
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RemoteVideo

The other user's video, while the call runs.

Declaration
public VideoFeed RemoteVideo { get; }
Property Value
Type Description
VideoFeed
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ScreenText

Text of the button that switches between the full video and the chat.

Declaration
public string ScreenText { get; }
Property Value
Type Description
string
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SendsVideo

Declaration
[ObservableProperty]
[ExcludeFromCodeCoverage]
public bool SendsVideo { get; set; }
Property Value
Type Description
bool
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ShowsCornerPreview

Whether this side's camera shows small in the corner, over the other side's video.

Declaration
public bool ShowsCornerPreview { get; }
Property Value
Type Description
bool
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ShowsFullScreen

Whether the call fills the screen: video shown, either side's, and wanted so; only the other side's video asks for it by itself.

Declaration
public bool ShowsFullScreen { get; }
Property Value
Type Description
bool
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ShowsVideo

Whether the call has video to show, the other side's or this side's own camera, as when only this side sends; the switch between video and chat shows then.

Declaration
public bool ShowsVideo { get; }
Property Value
Type Description
bool
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SpeakerText

Text of the speaker button.

Declaration
public string SpeakerText { get; }
Property Value
Type Description
string
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StateText

Declaration
[ObservableProperty]
[ExcludeFromCodeCoverage]
public string StateText { get; set; }
Property Value
Type Description
string

SwitchCameraCommand

Gets an IRelayCommand instance wrapping Uniform.Chat.Avalonia.ViewModels.CallViewModel.SwitchCamera().

Declaration
[ExcludeFromCodeCoverage]
public IRelayCommand SwitchCameraCommand { get; }
Property Value
Type Description
IRelayCommand

ToggleCameraCommand

Gets an IRelayCommand instance wrapping Uniform.Chat.Avalonia.ViewModels.CallViewModel.ToggleCamera().

Declaration
[ExcludeFromCodeCoverage]
public IRelayCommand ToggleCameraCommand { get; }
Property Value
Type Description
IRelayCommand

ToggleMuteCommand

Gets an IRelayCommand instance wrapping Uniform.Chat.Avalonia.ViewModels.CallViewModel.ToggleMute().

Declaration
[ExcludeFromCodeCoverage]
public IRelayCommand ToggleMuteCommand { get; }
Property Value
Type Description
IRelayCommand

ToggleScreenCommand

Gets an IRelayCommand instance wrapping Uniform.Chat.Avalonia.ViewModels.CallViewModel.ToggleScreen().

Declaration
[ExcludeFromCodeCoverage]
public IRelayCommand ToggleScreenCommand { get; }
Property Value
Type Description
IRelayCommand

ToggleSpeakerCommand

Gets an IAsyncRelayCommand instance wrapping Uniform.Chat.Avalonia.ViewModels.CallViewModel.ToggleSpeakerAsync().

Declaration
[ExcludeFromCodeCoverage]
public IAsyncRelayCommand ToggleSpeakerCommand { get; }
Property Value
Type Description
IAsyncRelayCommand

Methods

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Dispose()

Stop following the calls.

Declaration
public void Dispose()
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PlaceCallAsync(string, bool)

Call the other member of a direct room, asking for the microphone first where needed.

Declaration
public Task PlaceCallAsync(string roomId, bool video = false)
Parameters
Type Name Description
string roomId
bool video
Returns
Type Description
Task

Implements