how to refer to the current window

[Ichthyostega]

we've got a problem with defining global Actions, e.g. for a global menu: we can't bind them to a specific window, rather they need to attach to the current window at invocation time

[Ichthyostega]

made a rought draft.

• basically the UiManager is the right component to serve as link for binding such global actions
• the WindowList has all the information to find out about the currently active window
• stick to the common pattern in UI programming:
  • have several free floating components
  • wire them once on startup
  • let the events do the work

[Ichthyostega]

...while the UiManager might serve well as link, he is not actually the right one to handle this problem.
Thus I've now introduced a new top-level Controller, which

• like any controller is connected to the UI-Bus
• corresponds to the model Root in the Session
• is planned to establish a link between the hierarchical structure of the model and transient user interaction state, read "the current window"

[Ichthyostega]

this problem is effectively solved now

• we use a global wiring context (ticket:1067)
• each of these global managers knows about the other's responsibilities
• the WindowList is able to inspect allo top-level WorkspaceWindow entries to pick the first one marked active by GTK.
• the other global facilities , like the global menu actions, just delegate to the WindowList for this task.

[Undercover Agent]

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