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FBLoginButton.m
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FBLoginButton.m
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/*
* Copyright 2010 Facebook
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "FBLoginButton.h"
#import "Facebook.h"
#import <dlfcn.h>
///////////////////////////////////////////////////////////////////////////////////////////////////
@implementation FBLoginButton
@synthesize isLoggedIn = _isLoggedIn;
///////////////////////////////////////////////////////////////////////////////////////////////////
// private
/**
* return the regular button image according to the login status
*/
- (UIImage*)buttonImage {
if (_isLoggedIn) {
return [UIImage imageNamed:@"FBConnect.bundle/images/LogoutNormal.png"];
} else {
return [UIImage imageNamed:@"FBConnect.bundle/images/LoginNormal.png"];
}
}
/**
* return the highlighted button image according to the login status
*/
- (UIImage*)buttonHighlightedImage {
if (_isLoggedIn) {
return [UIImage imageNamed:@"FBConnect.bundle/images/LogoutPressed.png"];
} else {
return [UIImage imageNamed:@"FBConnect.bundle/images/LoginPressed.png"];
}
}
//////////////////////////////////////////////////////////////////////////////////////////////////
// public
/**
* To be called whenever the login status is changed
*/
- (void)updateImage {
self.imageView.image = [self buttonImage];
[self setImage: [self buttonImage]
forState: UIControlStateNormal];
[self setImage: [self buttonHighlightedImage]
forState: UIControlStateHighlighted |UIControlStateSelected];
}
@end