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//
// SRValidator.h
// ShortcutRecorder
//
// Copyright 2006-2012 Contributors. All rights reserved.
//
// License: BSD
//
// Contributors:
// David Dauer
// Jesper
// Jamie Kirkpatrick
// Andy Kim
// Silvio Rizzi
// Ilya Kulakov
#import <Cocoa/Cocoa.h>
@protocol SRValidatorDelegate;
/*!
Implements logic to check whether shortcut is taken by other parts of the application and system.
*/
@interface SRValidator : NSObject
@property (assign) NSObject<SRValidatorDelegate> *delegate;
- (instancetype)initWithDelegate:(NSObject<SRValidatorDelegate> *)aDelegate;
/*!
Determines whether shortcut is taken.
@discussion Key is checked in the following order:
1. If delegate implements shortcutValidator:isKeyCode:andFlagsTaken:reason:
2. If delegate allows system-wide shortcuts are checked
3. If delegate allows application menu it checked
@see SRValidatorDelegate
*/
- (BOOL)isKeyCode:(unsigned short)aKeyCode andFlagsTaken:(NSEventModifierFlags)aFlags error:(NSError **)outError;
/*!
Determines whether shortcut is taken in delegate.
@discussion If delegate does not implement appropriate method, returns immediately.
*/
- (BOOL)isKeyCode:(unsigned short)aKeyCode andFlagTakenInDelegate:(NSEventModifierFlags)aFlags error:(NSError **)outError;
/*!
Determines whether shortcut is taken by system-wide shortcuts.
@discussion Does not check whether delegate allows or disallows checking in system shortcuts.
*/
- (BOOL)isKeyCode:(unsigned short)aKeyCode andFlagsTakenInSystemShortcuts:(NSEventModifierFlags)aFlags error:(NSError **)outError;
/*!
Determines whether shortcut is taken by application menu item.
@discussion Does not check whether delegate allows or disallows checking in application menu.
*/
- (BOOL)isKeyCode:(unsigned short)aKeyCode andFlags:(NSEventModifierFlags)aFlags takenInMenu:(NSMenu *)aMenu error:(NSError **)outError;
@end
@protocol SRValidatorDelegate
@optional
/*!
Asks the delegate if aKeyCode and aFlags are valid.
@param aValidator The validator that validates key code and flags.
@param aKeyCode Key code to validate.
@param aFlags Flags to validate.
@param outReason If delegate decides that shortcut is invalid, it may pass here an error message.
@result YES if shortcut is valid. Otherwise NO.
@discussion Implementation of this method by the delegate is optional. If it is not present, checking proceeds as if this method had returned YES.
*/
- (BOOL)shortcutValidator:(SRValidator *)aValidator isKeyCode:(unsigned short)aKeyCode andFlagsTaken:(NSEventModifierFlags)aFlags reason:(NSString **)outReason;
/*!
Asks the delegate whether validator should check key equivalents of app's menu items.
@param aValidator The validator that going to check app's menu items.
@result YES if validator should check key equivalents of app's menu items. Otherwise NO.
@discussion Implementation of this method by the delegate is optional. If it is not present, checking proceeds as if this method had returned YES.
*/
- (BOOL)shortcutValidatorShouldCheckMenu:(SRValidator *)aValidator;
/*!
Asks the delegate whether it should check system shortcuts.
@param aValidator The validator that going to check system shortcuts.
@result YES if validator should check system shortcuts. Otherwise NO.
@discussion Implementation of this method by the delegate is optional. If it is not present, checking proceeds as if this method had returned YES.
*/
- (BOOL)shortcutValidatorShouldCheckSystemShortcuts:(SRValidator *)aValidator;
/*!
Asks the delegate whether it should use ASCII representation of key code when making error messages.
@param aValidator The validator that is about to make an error message.
@result YES if validator should use ASCII representation. Otherwise NO.
@discussion Implementation of this method by the delegate is optional. If it is not present, ASCII representation of key code is used.
*/
- (BOOL)shortcutValidatorShouldUseASCIIStringForKeyCodes:(SRValidator *)aValidator;
@end
@interface NSMenuItem (SRValidator)
/*!
Returns full path to the menu item. E.g. "Window ➝ Zoom"
*/
- (NSString *)SR_path;
@end