adium / Source / AIPasswordPromptController.m

/* 
 * Adium is the legal property of its developers, whose names are listed in the copyright file included
 * with this source distribution.
 * 
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
 * General Public License as published by the Free Software Foundation; either version 2 of the License,
 * or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
 * Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with this program; if not,
 * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

// $Id$

#import "AIPasswordPromptController.h"
#import <objc/objc-runtime.h>

#define         PASSWORD_PROMPT_NIB             @"PasswordPrompt"
#define         KEY_PASSWORD_WINDOW_FRAME       @"Password Prompt Frame"

@interface AIPasswordPromptController ()
- (void)setPassword:(NSString *)password;
@end

@implementation AIPasswordPromptController

- (id)initWithWindowNibName:(NSString *)windowNibName password:(NSString *)inPassword notifyingTarget:(id)inTarget selector:(SEL)inSelector context:(id)inContext
{
    if ((self = [super initWithWindowNibName:windowNibName])) {
                [self setTarget:inTarget selector:inSelector context:inContext];
                [self setPassword:inPassword];
        }

    return self;
}

- (void)setTarget:(id)inTarget selector:(SEL)inSelector context:(id)inContext
{
        if (inTarget != target) {
                [target release];
                target = [inTarget retain];
        }
        
        selector = inSelector;
        
        if (inContext != context) {
                [context release];
                context = [inContext retain];
        }
}

- (void)setPassword:(NSString *)inPassword
{
        if (password != inPassword) {
                [password release];
                password = [inPassword copy];
        }
}

- (void)dealloc
{
    [target release];
        [context release];
        [password release];

    [super dealloc];
}

- (void)windowDidLoad
{
        [[self window] center];

        [textField_password setStringValue:(password ? password : @"")];

        [super windowDidLoad];
}

- (NSString *)savedPasswordKey
{
        return nil;
}

- (IBAction)cancel:(id)sender
{
    //close up and notify our caller (pass nil to signify no password)
    [self closeWindow:nil]; 
        
        void (*targetMethodSender)(id, SEL, id, AIPasswordPromptReturn, id) = (void (*)(id, SEL, id, AIPasswordPromptReturn, id)) objc_msgSend;
        targetMethodSender(target, selector, nil, AIPasswordPromptCancelReturn, context);
}

- (IBAction)okay:(id)sender
{
        NSString        *thePassword = [textField_password stringValue];
        BOOL    savePassword = [checkBox_savePassword state];

        //save password?
        if (savePassword && thePassword && [thePassword length]) {
                [self savePassword:thePassword];
        }

        //close up and notify our caller
        [self closeWindow:nil];    
        
        void (*targetMethodSender)(id, SEL, id, AIPasswordPromptReturn, id) = (void (*)(id, SEL, id, AIPasswordPromptReturn, id)) objc_msgSend;
        targetMethodSender(target, selector, thePassword, AIPasswordPromptOKReturn, context);
}

- (IBAction)togglePasswordSaved:(id)sender
{
    if ([sender state] == NSOffState) {
        //Forget any saved passwords
                [self savePassword:nil];
    }
}

- (void)savePassword:(NSString *)password
{
        //abstract method. subclasses can do things here.
}

- (void)textDidChange:(NSNotification *)notification
{
        //if the password field is empty, disable the OK button.
        //otherwise, enable it.
        [button_OK setEnabled:([[textField_password stringValue] length] != 0)];
}

// called as the window closes
- (void)windowWillClose:(id)sender
{
        [NSObject cancelPreviousPerformRequestsWithTarget:[self window]
                                                                                         selector:@selector(makeFirstResponder:)
                                                                                           object:textField_password];

        [super windowWillClose:sender];
    [self autorelease];
}

- (void)windowDidBecomeKey:(NSNotification *)aNotification
{
        [[self window] performSelector:@selector(makeFirstResponder:)
                                                withObject:textField_password
                                                afterDelay:0];
}

- (BOOL)shouldResignKeyWindowWithoutUserInput
{
        /* We override this to ensure that password windows
         * don't have their focus pulled away programmatically.
         */
        return NO;
}

@end