/// <summary>
/// Helper method to check if a command can execute.
/// </summary>
/// <param name="ltoFlash">The top-level view model whose active device will be used to test command availability.</param>
/// <param name="command">The command whose availability is being tested.</param>
/// <returns><c>true</c> if the command can execute, otherwise <c>false</c>.</returns>
internal static bool CanExecuteCommand(this LtoFlashViewModel ltoFlash, VisualDeviceCommand command)
{
bool canExecute = (ltoFlash != null) && (ltoFlash.ActiveLtoFlashDevice != null) && (ltoFlash.ActiveLtoFlashDevice.Device != null);
if (canExecute)
{
canExecute = ltoFlash.ActiveLtoFlashDevice.Device.CanExecuteCommand(command);
}
return(canExecute);
}
/// <summary>
/// Helper method to check if a command can execute.
/// </summary>
/// <param name="device">The target device for the given command.</param>
/// <param name="command">The command whose availability is being tested.</param>
/// <returns><c>true</c> if the command can execute, otherwise <c>false</c>.</returns>
internal static bool CanExecuteCommand(this Device device, VisualDeviceCommand command)
{
var canExecute = (device != null) && device.IsValid && !device.IsCommandInProgress && device.AllCommandsAvailable(command.RequiredProtocolCommands);
if (canExecute && (command.ConfigurationBits != DeviceStatusFlags.None))
{
canExecute = command.ConfigurationBits.IsConfigurableFeatureAvailable(FirmwareRevisions.GetFirmwareVersion(device.FirmwareRevisions.Current));
}
command.UpdateDeviceConfigurationCommandTipDescription(device, canExecute);
return(canExecute);
}
/// <summary>
/// Update the tool tip description of a command if feature cannot be configured due to firmware version of connected device.
/// </summary>
/// <param name="deviceCommand">The command whose tool tip description may be updated.</param>
/// <param name="device">The currently active device, if any.</param>
/// <param name="canExecute">The status of the 'can execute' of <paramref name="deviceCommand"/>.</param>
internal static void UpdateDeviceConfigurationCommandTipDescription(this VisualDeviceCommand deviceCommand, Device device, bool canExecute)
{
if (deviceCommand.ConfigurationBits != DeviceStatusFlags.None)
{
var descriptionResourceKey = deviceCommand.UniqueId.Split(new[] { '.' }).Last() + "_TipDescription";
var description = typeof(CommandHelpers).GetResourceString(descriptionResourceKey);
if (!canExecute && (device != null))
{
var requiredFirmareVersion = deviceCommand.ConfigurationBits.GetMinimumRequiredFirmareVersionForFeature();
var currentFirmwareVersion = FirmwareRevisions.GetFirmwareVersion(device.FirmwareRevisions.Current);
if ((currentFirmwareVersion > 0) && (requiredFirmareVersion > 0))
{
var modifedDescription = new StringBuilder(description).AppendLine().AppendLine();
modifedDescription.AppendFormat(
CultureInfo.CurrentCulture,
Strings.ConfigurableFeatureUnavailable_Message_Format,
requiredFirmareVersion,
currentFirmwareVersion);
description = modifedDescription.ToString();
}
}
deviceCommand.ToolTipDescription = description;
}
}
