ShortcutRecorder 2

The only user interface control to record shortcuts. For Mac OS X 10.6+, 64bit.

🔬 Support for Xcode 6 Quick Help
🔬 Support for Xcode 6 Interface Builder integration
Fresh Look & Feel (brought to you by Wireload and John Wells)
With Retina support
Auto Layout ready
Correct drawing on Layer-backed and Layer-hosted views
Accessibility for people with disabilities
Revised codebase with Automatic Reference Counting support
Translated into 24 languages

Includes framework to set global shortcuts (PTHotKey).

Get Sources

The preferred way to add the ShortcutRecorder to your project is to use git submodules: git submodule add git://github.com/Kentzo/ShortcutRecorder.git You can download sources from the site as well.

Integrate into your project

First, add ShortcutRecorder.xcodeproj to your workspace via Xcode (Apple docs). Don't have a workspace? No problem, just add ShortcutRecorder.xcodeproj via the "Add Files to" dialog.

Next step is to ensure your target is linked against the ShortcutRecorder or/and PTHotKey frameworks (Apple docs). Desired frameworks will be listed under Workspace.

Now it's time to make frameworks part of your app. To do this, you need to add custom Build Phase (Apple docs). Remember to set Destination to Frameworks and clean up Subpath.

Finally, ensure your app will find frameworks upon start. Open Build Settings of your target, look up Runtime Search Paths. Add @executable_path/../Frameworks to the list of paths.

Add control in Interface Builder

Since Xcode 4 Apple removed Interface Builder Plugins. You can only use it to add and position/resize ShortcutRecorder control. To do this, add Custom View and set its class to SRRecorderControl.

SRRecorderControl has fixed height of 25 points so ensure you do not use autoresizing masks/layout rules which allows vertical resizing. I recommend you to pin height in case you're using Auto Layout.

Usage

First, we want to keep value of the control across relaunches of the app. We can simply achieve this by using NSUserDefaultsController and bindings:

[self.pingShortcutRecorder bind:NSValueBinding
                       toObject:[NSUserDefaultsController sharedUserDefaultsController]
                    withKeyPath:@"values.ping"
                        options:nil];

The value can be used to set key equivalent of NSMenuItem or NSButton. It can also be used to register a global shortcut.

Setting key equivalent of NSMenuItem using bindings:

[self.pingItem bind:@"keyEquivalent"
           toObject:defaults
        withKeyPath:@"values.ping"
            options:@{NSValueTransformerBindingOption: [SRKeyEquivalentTransformer new]}];
[self.pingItem bind:@"keyEquivalentModifierMask"
           toObject:defaults
        withKeyPath:@"values.ping"
            options:@{NSValueTransformerBindingOption: [SRKeyEquivalentModifierMaskTransformer new]}];

Setting key equivalent of NSButton using bindings:

[self.pingButton bind:@"keyEquivalent"
             toObject:defaults
          withKeyPath:@"values.ping"
              options:@{NSValueTransformerBindingOption: [SRKeyEquivalentTransformer new]}];
[self.pingButton bind:@"keyEquivalentModifierMask"
             toObject:defaults
          withKeyPath:@"values.ping"
              options:@{NSValueTransformerBindingOption: [SRKeyEquivalentModifierMaskTransformer new]}];

Setting global shortcut using PTHotKeyCenter:

PTHotKeyCenter *hotKeyCenter = [PTHotKeyCenter sharedCenter];
PTHotKey *oldHotKey = [hotKeyCenter hotKeyWithIdentifier:aKeyPath];
[hotKeyCenter unregisterHotKey:oldHotKey];

PTHotKey *newHotKey = [PTHotKey hotKeyWithIdentifier:aKeyPath
                                            keyCombo:newShortcut
                                              target:self
                                              action:@selector(ping:)];
[hotKeyCenter registerHotKey:newHotKey];

Key Equivalents and Keyboard Layout

While ShortcutRecorder keeps your shortcuts as combination of key code and modifier masks, key equivalents are expressed using key character and modifier mask. The difference is that position of key code on keyboard does not depend on current keyboard layout while position of key character does.

ShortcutRecorder includes two special transformers to simplify binding to the key equivalents of NSMenuItem and NSButton:

SRKeyEquivalentTransformer
SRKeyEquivalentModifierMaskTransformer

SRKeyEquivalentTransformer uses ASCII keyboard layout to convert key code into character, therefore resulting character does not depend on keyboard layout. The drawback is that position of the character on keyboard may change depending on layout and used modifier keys (primarly Option and Shift).

NSButton

If you're going to bind ShortcutRecorder to key equivalent of NSButton, I encourage you to require NSCommandKeyMask. This is because NSButton handles key equivalents very strange. Rather than investigating full information of the keyboard event, it just asks for charactersIgnoringModifiers and compares returned value with its keyEquivalent. Unfortunately, Cocoa returns layout-independent (ASCII) representation of characters only when NSCommandKeyMask is set. If it's not set, assigned shortcut likely won't work with other layouts.

Questions

Still have questions? Create an issue immediately and feel free to ping me.

Paid Support

If functional you need is missing but you're ready to pay for it, feel free to contact me. If not, create an issue anyway, I'll take a look as soon as I can.

License

flexibits/ShortcutRecorder

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