internal bool TryExecuteCommand(Document document, int caretPosition, IGoToDefinitionService goToDefinitionService)
{
string errorMessage = null;
var result = _waitIndicator.Wait(
title: EditorFeaturesResources.Go_to_Definition,
message: EditorFeaturesResources.Navigating_to_definition,
allowCancel: true,
action: waitContext =>
{
if (goToDefinitionService != null &&
goToDefinitionService.TryGoToDefinition(document, caretPosition, waitContext.CancellationToken))
{
return;
}
errorMessage = EditorFeaturesResources.Cannot_navigate_to_the_symbol_under_the_caret;
});
if (result == WaitIndicatorResult.Completed && errorMessage != null)
{
var workspace = document.Project.Solution.Workspace;
var notificationService = workspace.Services.GetService <INotificationService>();
notificationService.SendNotification(errorMessage, title: EditorFeaturesResources.Go_to_Definition, severity: NotificationSeverity.Information);
}
return(true);
}
internal bool TryExecuteCommand(Document document, int caretPosition, IGoToDefinitionService goToDefinitionService, CommandExecutionContext context)
{
string errorMessage = null;
using (context.OperationContext.AddScope(allowCancellation: true, EditorFeaturesResources.Navigating_to_definition))
{
if (goToDefinitionService != null &&
goToDefinitionService.TryGoToDefinition(document, caretPosition, context.OperationContext.UserCancellationToken))
{
return(true);
}
errorMessage = EditorFeaturesResources.Cannot_navigate_to_the_symbol_under_the_caret;
}
if (errorMessage != null)
{
// We are about to show a modal UI dialog so we should take over the command execution
// wait context. That means the command system won't attempt to show its own wait dialog
// and also will take it into consideration when measuring command handling duration.
context.OperationContext.TakeOwnership();
var workspace = document.Project.Solution.Workspace;
var notificationService = workspace.Services.GetService <INotificationService>();
notificationService.SendNotification(errorMessage, title: EditorFeaturesResources.Go_to_Definition, severity: NotificationSeverity.Information);
}
return(true);
}
/// <summary>
/// Try to go to the definition of the symbol under the caret. This function is designed here for solutions
/// containing only of a single code document.
/// </summary>
/// <param name="caretOffset">The caret offset.</param>
/// <returns>The position of the symbol in the document where it is defined. If the symbol under the caret is not defined in the document,
/// the return value is null.</returns>
public int?GoToDefinition(int caretOffset)
{
if (null == _goToDefinitionService)
{
_goToDefinitionService = new CSharpGoToDefinitionService();
}
var document = Workspace.CurrentSolution.GetDocument(DocumentId);
var definitions = _goToDefinitionService.FindDefinitionsAsync(document, caretOffset, CancellationToken.None).Result;
var location = definitions.FirstOrDefault();
return(location?.SourceSpan.Start);
}
public static void ExecuteCommand(Document document, int caretPosition, IGoToDefinitionService goToDefinitionService, CommandExecutionContext context) => GoToDefinitionCommandHandler.ExecuteCommand(document, caretPosition, goToDefinitionService, context);
