Features

Presently, SecurityInterface has a whopping one class: KSPasswordField. It:

• Shows the password in plain text on-demand
• On the basis that password visibility is likely being toggled for editing, makes the field the first responder
• Automatically cleans up likely unwanted whitespace when pasting or dragging in passwords

Contact

I'm Mike Abdullah, of Karelia Software. @mikeabdullah on Twitter.

Questions about the code should be left as issues at https://github.com/karelia/SecurityInterface or message me on Twitter.

Dependencies

None beyond AppKit. Probably works back to OS X v10.2 if you were so inclined

License

Copyright © 2012 Karelia Software

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Usage

1. Add KSPasswordField.h and KSPasswordField.m to your project. Ideally, make this repo a submodule, but hey, it's your codebase, do whatever you feel like.
2. In Interface Builder, create a regular NSSecureTextField and then set its custom class to be KSPasswordField. You can also instantiate KSPasswordField directly like any other control
3. Whitespace-cleanup comes for free; no extra work required
4. To control showing the password, KSPasswordField has the following methods:
   • @property(nonatomic) BOOL showsText;
   • - (IBAction)showText:(id)sender;
   • - (IBAction)secureText:(id)sender;
   • - (IBAction)toggleTextShown:(id)sender;

I generally prefer to hook up a checkbox (NSButton) straight to the toggleTextShown: action