Re: Why are the simplest things the hardest?
Re: Why are the simplest things the hardest?
- Subject: Re: Why are the simplest things the hardest?
- From: Rick Mann <email@hidden>
- Date: Fri, 06 Jul 2018 21:55:03 -0700
> On Jul 5, 2018, at 01:31 , Allan Odgaard <email@hidden> wrote:
>
> On 5 Jul 2018, at 6:44, Rick Mann wrote:
>
>> Annoying I have to have a first responder view just to allow even my
>> Document to respond to menu commands.
>
> Quoting the
> [documentation](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/EventOverview/EventArchitecture/EventArchitecture.html):
>
> For document-based applications, the default responder chain for the main
> window consists of the following responders and delegates:
>
> 1. The main window’s first responder and the successive responder objects up
> the view hierarchy
> 2. The main window itself
> 3. The window's NSWindowController object (which inherits from NSResponder)
> 4. The main window’s delegate.
> 5. The NSDocument object (if different from the main window’s delegate)
> 6. The application object, NSApp
> 7. The application object's delegate
> 8. The application's document controller (an NSDocumentController object,
> which does not inherit from NSResponder)
>
> As you can see, both the window’s delegate, application object’s delegate,
> and the `NSDocument` instance itself, is part of the responder chain, which
> is where you would implement your menu item actions.
>
> Implementing action methods in the view hierarchy should only be used for
> view-specific actions such as `copy:` and `paste:` (which would depend on the
> first responder, i.e. ⌘C does different things depending on which view is the
> first responder, but e.g. ⌘S should always go to the document’s
> `saveDocument:` action).
If I have view commands (like fixed perspectives in a 3D view) in a menu, I
should be able to implement those on the view controller, don't you think?
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--
Rick Mann
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