timeline view

View that, to the right of an editor, lets you scroll through 'versions' of the edit session.

Timeline state object

• we are going to need to keep an object at each timeline state (grain-size of the scroll). cool. Each edit session (for a particular file) will get a List of these.
• We'll collect one of these each time the java model is changed -- so, everytime the file is auto-compiled and an event is sent to the javaModelListener.
• It should contain
  • Source code (string)
  • boolean: compilable or not
  • timestamp
  • IJavaElement that is triggering the event
    • method name
    • in a comment?
  • feedback model -- if there is one (i.e., if this was an eduride step with feedback)

  • ---

  • keystrokes the occurred between this state and the last one
  • List of IProblems (will be empty if compilable)
  • Java Delta
    • where in the file the change occurred - which method, in a private class, etc.

Ideas on the view layout

Vertical is the timeline for the entire edit session. Or, multiple sessions on same file?

• a scrollbar at the left
• columns to the right, that can be switched to contain
  • method that was edited
  • feedback the student got at that point
  • whether the code compiled (maybe this one always stays, red/green?)
  • compilation problems