CODEWITHSUNDEEP
objective-cxcodewebkitnswindow
Tommy B.
Tommy B.

Reputation: 3659

Catch key events in a NSWindow

I'm trying to get a very basic web browser with 3 Webviews (2 hidden and 1 visible at all times).

I'd like to switch between these 3 webviews by pressing CMD+1, CMD+2, CMD+3.

I have created a basic Cocoa app, added 3 webviews in it, referenced the Webkit framework and I'm up and running with it, this part is working.

Now I wonder:

1) How to catch key event? It seems so overly complicated that browsing the event structure docs gave me a headache.

[rant]From someone who did lots of Windows forms, GTK, QT and Java/C#/C++ work it seems that XCode is getting worse every release by moving everything around and creating 3 different ways of achieving the same thing, etc. Each time I have to use it's always like I have to learn everything once again.[/rant]

2) How to specifically catch CMD+NUMBERS ?

This is just for a quick productivity app I'm building to use in conjunction with JIRA (project management).

I'd appreciate if somebody could point me in the good direction.

Every time I stumble upon a good tutorial, it was outdated or was for iOS dev which most of the time doesn't use the same APIs as OS X anymore.

Sorry about the rant and thanks about your help!

Upvotes: 3

Views: 1843

Answers (2)

uchuugaka
uchuugaka

Reputation: 12782

Don't worry about what kind of views they are. Put each one inside a tab of an NSTabView, with or without tab control displayed.

With tab control, set the desired key combo per tab in IB.

With or without it, create a menu item in a menu in the menu bar for each tab with the same key combos. This is the recommended way since long ago. Apple recommends adding a menu bar menu item for everything that has a keyboard shortcut. The menu bar will receive the keys before anything else.

Upvotes: 0

Michael Dautermann
Michael Dautermann

Reputation: 89559

What you are looking to override is the NSResponder method "keyDown:", and what I would recommend doing is subclassing "WebView" and create your own "keyDown" method (make certain to call "[super keyDown: theEvent]" somewhere in your implementation, though).

Now, within your "keyDown" implementation, to look for the command key, "NSEvent" objects respond to the "modifierFlags" method and one of the flags is "NSCommandKeyMask".

E.G.:

NSUInteger flags = [theEvent modifierFlags];
if( flags == NSCommandKeyMask ){
    // Got it!
}

Upvotes: 2

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