Interface ICommandHandler

Callback methods to allow users to interact with CliCommands.

Namespace: ZeroInstall.Commands

Assembly: 0install.dll

Syntax

public interface ICommandHandler

Remarks

The methods may be called from a background thread. Implementations apply appropriate thread-synchronization to update UI elements.

Properties

Background

Hides the GUI and uses something like a tray icon instead. Has no effect when IsGui is false.

Declaration

bool Background { get; set; }

Property Value

Type	Description
Boolean

FeedUri

The URI of the Zero Install feed the current operation relates to.

Declaration

FeedUri FeedUri { get; set; }

Property Value

Type	Description
FeedUri

Remarks

This can be used to apply application-specific visual branding.

IsGui

Indicates whether this handler is a GUI.

Declaration

bool IsGui { get; }

Property Value

Type	Description
Boolean

Methods

CloseUI()

Closes any persistent UI elements that were created.

Declaration

void CloseUI()

CustomizeSelections(Func<Selections>)

Allows the user to customize the interface preferences and rerun the solver if desired. Returns once the user is finished.

Declaration

void CustomizeSelections(Func<Selections> solveCallback)

Parameters

Type	Name	Description
Func<Selections>	solveCallback	Called after interface preferences have been changed and the solver needs to be rerun.

DisableUI()

Disables any persistent UI elements that were created but still leaves them visible.

Declaration

void DisableUI()

ShowIntegrateApp(IntegrationState)

Displays application integration options to the user. Returns once the user is finished.

Declaration

void ShowIntegrateApp(IntegrationState state)

Parameters

Type	Name	Description
IntegrationState	state	A View-Model for modifying the current desktop integration state.

Remarks

The caller is responsible for applying changes.

Exceptions

Type	Condition
OperationCanceledException	The user does not want any changes to be applied.

ShowSelections(Selections, IFeedManager)

Shows the Selections made by the solver to the user. Returns immediately. May be ignored by some implementations.

Declaration

void ShowSelections(Selections selections, IFeedManager feedManager)

Parameters

Type	Name	Description
Selections	selections	The Selections as provided by the solver.
IFeedManager	feedManager	The feed manager used to retrieve feeds for additional information about implementations.