https://note.com/usutani/n/nf74c1909771c

submitBubbled.pu

@startuml submitBubbled
hide footbox

== ==
note over Session: new
create Navigator
Session -> Navigator: new
create PageView
Session -> PageView: new
create BrowserAdapter
Session -> BrowserAdapter: new

create FormSubmitObserver
Session -> FormSubmitObserver: new

== ==
note over FormSubmitObserver: submitBubbled
FormSubmitObserver -> Session: willSubmitForm
Session -> Session: elementIsNavigable

note over FormSubmitObserver #SkyBlue: event.preventDefault()

FormSubmitObserver -> Session: formSubmitted
Session -> Navigator: submitForm

Navigator -> Navigator: stop
create FormSubmission
Navigator -> FormSubmission: this.formSubmission = new
create FetchRequest
FormSubmission -> FetchRequest: new
Navigator -> FormSubmission: isIdempotent
Navigator <-- FormSubmission: false
Navigator -> FormSubmission: start
FormSubmission -> FetchRequest: perform

activate FetchRequest
  FetchRequest -> FormSubmission: prepareHeadersForRequest
  FetchRequest -> FetchRequest: allowRequestToBeIntercepted
  activate FetchRequest
    note over FetchRequest #SkyBlue: dispatch("turbo:before-fetch-request", { cancelable: true, ... } })
  deactivate FetchRequest
  FetchRequest -> FormSubmission: requestStarted
  FormSubmission -> Navigator: requestSucceededWithResponse

  note over FetchRequest #SkyBlue: fetch
  FetchRequest -> FetchRequest: receive

  activate FetchRequest
    create FetchResponse
    FetchRequest -> FetchResponse: new
    note over FetchRequest #SkyBlue: dispatch("turbo:before-fetch-response", { cancelable: true, ... })
    FetchRequest -> FormSubmission: requestSucceededWithResponse

    activate FormSubmission
      FormSubmission -> FetchResponse: clientError
      FormSubmission <-- FetchResponse: false
      FormSubmission -> FetchResponse: serverError
      FormSubmission <-- FetchResponse: false
      FormSubmission -> FormSubmission: requestMustRedirect
      activate FormSubmission
        FormSubmission -> FormSubmission: true
      deactivate FormSubmission
      FormSubmission -> FormSubmission: responseSucceededWithoutRedirect
      activate FormSubmission
        FormSubmission -> FormSubmission: false
      deactivate FormSubmission
      FormSubmission -> Navigator: formSubmissionSucceededWithResponse

      activate Navigator
        Navigator -> FetchResponse: responseHTML
        Navigator -> FormSubmission: method
        Navigator <-- FormSubmission: FetchMethod.post
        Navigator -> PageView: clearSnapshotCache
        Navigator -> Navigator: proposeVisit
        activate Navigator
          Navigator -> Session: allowsVisitingLocation
          Session -> Session: notifyApplicationBeforeVisitingLocation
          note over Session #SkyBlue: dispatch("turbo:before-visit", ...)
          Navigator -> Session: visitProposedToLocation
          Session -> BrowserAdapter: visitProposedToLocation
          note over BrowserAdapter #Orange: snip
        deactivate Navigator
      deactivate Navigator
    deactivate FormSubmission
  deactivate FetchRequest

  FetchRequest -> FormSubmission: requestFinished
  note over FormSubmission #SkyBlue: dispatch("turbo:submit-end", ...)
  FormSubmission -> Navigator: formSubmissionFinished
deactivate FetchRequest
@enduml