How can I enter FullScreen mode in Cocoa on startup?

Question

I'm using Swift for an OS X app and I want it to enter Full Screen on startup. I've entered the following code in my appdelegate.swift, but it's giving me an error.

    func window(window: NSWindow, willUseFullScreenPresentationOptions proposedOptions: NSApplicationPresentationOptions) -> NSApplicationPresentationOptions {
        return NSApplicationPresentationOptions.AutoHideToolbar |
            NSApplicationPresentationOptions.AutoHideMenuBar |
            NSApplicationPresentationOptions.FullScreen |
            proposedOptions
    }

the error is: "Binary operator '|' cannot be applied to two 'NSApplicationPresentationOptions' operands. I've tried to find a tutorial to try and do this, but I can't seem to find anything that explains how to enter fullscreen on startup. I'm still pretty knew to Swift and OS X programming so please forgive me if I've made a huge newbie error.

Any help would be greatly appreciated.

Thank you so much.

AppKit

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Posted by

flite

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Answer 1

Hi QuincyMorris,

Thanks for the reply. It didn't help me with the full screen problem, but it helped to understand the issues at hand and then find the solution I wanted. Just for those who might come to this looking to open their app in Full Screen mode, this is what I used in my main ViewController:

override func viewDidAppear() {
        let presOptions: NSApplicationPresentationOptions = ([.FullScreen,.AutoHideMenuBar])
/*These are all of the options for NSApplicationPresentationOptions 
            .Default                 
            .AutoHideDock              |   /
            .AutoHideMenuBar           |   /
            .DisableForceQuit          |   /
            .DisableMenuBarTransparency|   /
            .FullScreen                |   /
            .HideDock                  |   /
            .HideMenuBar               |   /
            .DisableAppleMenu          |   /
            .DisableProcessSwitching   |   /
            .DisableSessionTermination |   /
            .DisableHideApplication    |   /
            .AutoHideToolbar
            .HideMenuBar               |   /
            .DisableAppleMenu          |   /
            .DisableProcessSwitching   |   /
            .DisableSessionTermination |   /
            .DisableHideApplication    |   /
            .AutoHideToolbar */
     
        let optionsDictionary = [NSFullScreenModeApplicationPresentationOptions :
            NSNumber(unsignedLong: presOptions.rawValue)]
     
        self.view.enterFullScreenMode(NSScreen.mainScreen()!, withOptions:optionsDictionary)
        self.view.wantsLayer = true
    }

I was able to find this source code from the following link:

http://blogs.wcode.org/2015/06/howto-create-a-locked-down-fullscreen-cocoa-application-and-implement-nslayoutconstraints-using-swift/

Again, thanks for the help and the point in the right direction and I hope that this can help others.

Posted by

flite

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Answer 2

In the current version of Swift, things like NSApplicationPresentationOptions are option sets. The easiest way to create one from literal options is like this:

[NSApplicationPresentationOptions.AutoHideToolbar, NSApplicationPresentationOptions.AutoHideMenuBar, NSApplicationPresentationOptions.FullScreen]

or in a context where the type can be inferred:

[.AutoHideToolbar, .AutoHideMenuBar, .FullScreen]

so you should be able to write your return statement like this:

return proposedOptions.union ([.AutoHideToolbar, .AutoHideMenuBar, .FullScreen])

Recent versions of Swift have started avoiding "near enough" operator recyclings ( | ), and using actual words for the function (union) instead.

Posted by

QuinceyMorris

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Answer 3

Hi QuincyMorris,

Thanks for the reply. It didn't help me with the full screen problem, but it helped to understand the issues at hand and then find the solution I wanted. Just for those who might come to this looking to open their app in Full Screen mode, this is what I used in my main ViewController:

override func viewDidAppear() {
        let presOptions: NSApplicationPresentationOptions = ([.FullScreen,.AutoHideMenuBar])
/*These are all of the options for NSApplicationPresentationOptions 
            .Default                 
            .AutoHideDock              |   /
            .AutoHideMenuBar           |   /
            .DisableForceQuit          |   /
            .DisableMenuBarTransparency|   /
            .FullScreen                |   /
            .HideDock                  |   /
            .HideMenuBar               |   /
            .DisableAppleMenu          |   /
            .DisableProcessSwitching   |   /
            .DisableSessionTermination |   /
            .DisableHideApplication    |   /
            .AutoHideToolbar
            .HideMenuBar               |   /
            .DisableAppleMenu          |   /
            .DisableProcessSwitching   |   /
            .DisableSessionTermination |   /
            .DisableHideApplication    |   /
            .AutoHideToolbar */
     
        let optionsDictionary = [NSFullScreenModeApplicationPresentationOptions :
            NSNumber(unsignedLong: presOptions.rawValue)]
     
        self.view.enterFullScreenMode(NSScreen.mainScreen()!, withOptions:optionsDictionary)
        self.view.wantsLayer = true
    }

I was able to find this source code from the following link:

http://blogs.wcode.org/2015/06/howto-create-a-locked-down-fullscreen-cocoa-application-and-implement-nslayoutconstraints-using-swift/

Again, thanks for the help and the point in the right direction and I hope that this can help others.

Posted by

flite

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How can I enter FullScreen mode in Cocoa on startup?

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