private void PlayerZoomOutTimelime_CanExecuteRequested(XamlUICommand sender, CanExecuteRequestedEventArgs args)
{
args.CanExecute =
IsLoaded &&
_player.Source != null &&
_player.Source is MediaSource source &&
source.IsOpen &&
source.State == MediaSourceState.Opened;
}
private void PlayerRateNormal_CanExecuteRequested(XamlUICommand sender, CanExecuteRequestedEventArgs args)
{
args.CanExecute =
IsLoaded &&
_player.Source != null &&
_player.Source is MediaSource source &&
source.IsOpen &&
source.State == MediaSourceState.Opened &&
_player.PlaybackSession.PlaybackState == MediaPlaybackState.Playing;
}
private void PlayerPreviousFrame_CanExecuteRequested(XamlUICommand sender, CanExecuteRequestedEventArgs args)
{
args.CanExecute =
IsLoaded &&
_player.Source != null &&
_player.Source is MediaSource source &&
source.IsOpen &&
source.State == MediaSourceState.Opened &&
_player.PlaybackSession.PlaybackState == MediaPlaybackState.Paused &&
_player.PlaybackSession.Position >= Slider.FrameDuration;
}
private void PlayerNextMarker_CanExecuteRequested(XamlUICommand sender, CanExecuteRequestedEventArgs args)
{
args.CanExecute =
IsLoaded &&
_player.Source != null &&
_player.Source is MediaSource source &&
source.IsOpen &&
source.State == MediaSourceState.Opened &&
(_player.PlaybackSession.PlaybackState == MediaPlaybackState.Playing ||
_player.PlaybackSession.PlaybackState == MediaPlaybackState.Paused) &&
NextMarkerFromCurrentPosition() != null;
}
private void PlayerNewClip_CanExecuteRequested(XamlUICommand sender, CanExecuteRequestedEventArgs args)
{
args.CanExecute =
IsLoaded &&
_player.Source != null &&
_player.Source is MediaSource source &&
source.IsOpen &&
source.State == MediaSourceState.Opened &&
Slider.SelectionStart != null &&
Slider.SelectionStart != Slider.SelectionEnd &&
(_player.PlaybackSession.PlaybackState == MediaPlaybackState.Playing ||
_player.PlaybackSession.PlaybackState == MediaPlaybackState.Paused);
}
private void ProjectSaveAs_CanExecuteRequested(XamlUICommand sender,
CanExecuteRequestedEventArgs args)
{
args.CanExecute = ActiveProject != null &&
(ActiveProject.StorageFile != null || ActiveProject.HasUnsavedChanges);
}
private void CanCopyRequested(XamlUICommand sender, CanExecuteRequestedEventArgs args) => args.CanExecute = _holder?.CanCopy ?? false;
private void ProjectOpen_CanExecuteRequested(XamlUICommand sender,
CanExecuteRequestedEventArgs args)
{
args.CanExecute = true;
}
private void ProjectSave_CanExecuteRequested(XamlUICommand sender,
CanExecuteRequestedEventArgs args)
{
args.CanExecute = ActiveProject?.HasUnsavedChanges == true;
}
private void MediaLibraryRemoveMarker_CanExecuteRequested(XamlUICommand sender,
CanExecuteRequestedEventArgs args)
{
args.CanExecute = _descriptorContext != null;
}
private void MediaLibraryRenameItem_CanExecuteRequested(XamlUICommand sender,
CanExecuteRequestedEventArgs args)
{
args.CanExecute = ActiveNode?.Depth > 0;
}
private void MediaLibraryRemoveAll_CanExecuteRequested(XamlUICommand sender,
CanExecuteRequestedEventArgs args)
{
args.CanExecute = ActiveProject?.MediaLibrary.Children.Count > 0;
}
private void MediaLibraryRemoveSelected_CanExecuteRequested(XamlUICommand sender,
CanExecuteRequestedEventArgs args)
{
args.CanExecute = TreeViewMediaLibrary.SelectedNodes.Count > 0;
}
private void MediaLibraryImportFolder_CanExecuteRequested(XamlUICommand sender,
CanExecuteRequestedEventArgs args)
{
args.CanExecute = ActiveNode is MediaTreeFolder;
}
