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//
// TSMessage.m
// Toursprung
//
// Created by Felix Krause on 24.08.12.
// Copyright (c) 2012 Toursprung. All rights reserved.
//
#import "TSMessage.h"
#import "TSMessageView.h"
#define kTSMessageDisplayTime 1.5
#define kTSMessageExtraDisplayTimePerPixel 0.04
#define kTSMessageAnimationDuration 0.3
@interface TSMessage ()
/** The queued messages (TSMessageView objects) */
@property (nonatomic, strong) NSMutableArray *messages;
- (void)fadeInCurrentNotification;
- (void)fadeOutNotification:(TSMessageView *)currentView;
@end
@implementation TSMessage
static TSMessage *sharedMessages;
static BOOL notificationActive;
+ (TSMessage *)sharedMessage
{
if (!sharedMessages)
{
sharedMessages = [[[self class] alloc] init];
}
return sharedMessages;
}
+ (BOOL)isNotificationActive
{
return notificationActive;
}
#pragma mark Methods to call from outside
+ (void)showNotificationWithMessage:(NSString *)message
withType:(TSMessageNotificationType)type
{
[self showNotificationWithTitle:message withMessage:nil withType:type];
}
+ (void)showNotificationWithTitle:(NSString *)title
withMessage:(NSString *)message
withType:(TSMessageNotificationType)type
{
[self showNotificationInViewController:[self defaultViewController]
withTitle:title
withMessage:message
withType:type];
}
+ (void)showNotificationInViewController:(UIViewController *)viewController
withTitle:(NSString *)title
withMessage:(NSString *)message
withType:(TSMessageNotificationType)type
{
[self showNotificationInViewController:viewController
withTitle:title
withMessage:message
withType:type
withDuration:0.0];
}
+ (void)showNotificationInViewController:(UIViewController *)viewController
withTitle:(NSString *)title
withMessage:(NSString *)message
withType:(TSMessageNotificationType)type
withDuration:(NSTimeInterval)duration
{
[self showNotificationInViewController:viewController
withTitle:title
withMessage:message
withType:type
withDuration:duration
withCallback:nil];
}
+ (void)showNotificationInViewController:(UIViewController *)viewController
withTitle:(NSString *)title
withMessage:(NSString *)message
withType:(TSMessageNotificationType)type
withDuration:(NSTimeInterval)duration
withCallback:(void (^)())callback
{
[self showNotificationInViewController:viewController
withTitle:title
withMessage:message
withType:type
withDuration:duration
withCallback:callback
atPosition:TSMessageNotificationPositionTop];
}
+ (void)showNotificationInViewController:(UIViewController *)viewController
withTitle:(NSString *)title
withMessage:(NSString *)message
withType:(TSMessageNotificationType)type
withDuration:(NSTimeInterval)duration
withCallback:(void (^)())callback
atPosition:(TSMessageNotificationPosition)messagePosition
{
[self showNotificationInViewController:viewController
withTitle:title
withMessage:message
withType:type
withDuration:duration
withCallback:callback
withButtonTitle:nil
withButtonCallback:nil
atPosition:messagePosition
canBeDismisedByUser:YES];
}
+ (void)showNotificationInViewController:(UIViewController *)viewController
withTitle:(NSString *)title
withMessage:(NSString *)message
withType:(TSMessageNotificationType)type
withDuration:(NSTimeInterval)duration
withCallback:(void (^)())callback
withButtonTitle:(NSString *)buttonTitle
withButtonCallback:(void (^)())buttonCallback
atPosition:(TSMessageNotificationPosition)messagePosition
canBeDismisedByUser:(BOOL)dismissingEnabled
{
for (TSMessageView *n in [TSMessage sharedMessage].messages)
{
if (([n.title isEqualToString:title] || (!n.title && !title)) && ([n.content isEqualToString:message] || (!n.content && !message)))
{
return; // avoid showing the same messages twice in a row
}
}
// Create the TSMessageView
TSMessageView *v = [[TSMessageView alloc] initWithTitle:title
withContent:message
withType:type
withDuration:duration
inViewController:viewController
withCallback:callback
withButtonTitle:buttonTitle
withButtonCallback:buttonCallback
atPosition:messagePosition
shouldBeDismissed:dismissingEnabled];
[[TSMessage sharedMessage].messages addObject:v];
if (!notificationActive)
{
[[TSMessage sharedMessage] fadeInCurrentNotification];
}
}
#pragma mark Example uses
+ (void)showInternetError
{
[TSMessage showNotificationWithTitle:NSLocalizedString(@"Network error", nil)
withMessage:NSLocalizedString(@"Couldn't connect to the server. Check your network connection.", nil)
withType:TSMessageNotificationTypeError];
}
+ (void)showLocationError
{
[TSMessage showNotificationWithTitle:NSLocalizedString(@"Location error", nil)
withMessage:NSLocalizedString(@"Couldn't detect your current location.", nil)
withType:TSMessageNotificationTypeError];
}
#pragma mark Setting up of notification views
- (id)init
{
if ((self = [super init]))
{
_messages = [[NSMutableArray alloc] init];
}
return self;
}
- (void)fadeInCurrentNotification
{
if ([self.messages count] == 0) return;
notificationActive = YES;
TSMessageView *currentView = [self.messages objectAtIndex:0];
CGFloat verticalOffset = 0.0f;
if ([currentView.viewController isKindOfClass:[UINavigationController class]])
{
if (![(UINavigationController *)currentView.viewController isNavigationBarHidden])
{
[currentView.viewController.view insertSubview:currentView
belowSubview:[(UINavigationController *)currentView.viewController navigationBar]];
verticalOffset = [(UINavigationController *)currentView.viewController navigationBar].bounds.size.height;
if (UIInterfaceOrientationIsPortrait([[UIApplication sharedApplication] statusBarOrientation]))
{
verticalOffset += [UIApplication sharedApplication].statusBarFrame.size.height;
}
else
{
verticalOffset += [UIApplication sharedApplication].statusBarFrame.size.width;
}
}
else
{
[currentView.viewController.view addSubview:currentView];
}
}
else
{
[currentView.viewController.view addSubview:currentView];
}
CGPoint toPoint;
if (currentView.messagePosition == TSMessageNotificationPositionTop)
{
toPoint = CGPointMake(currentView.center.x,
[[self class] navigationbarBottomOfViewController:currentView.viewController] + verticalOffset + CGRectGetHeight(currentView.frame) / 2.0);
}
else
{
toPoint = CGPointMake(currentView.center.x,
currentView.viewController.view.bounds.size.height - CGRectGetHeight(currentView.frame) / 2.0);
}
[UIView animateWithDuration:kTSMessageAnimationDuration animations:^
{
currentView.center = toPoint;
currentView.alpha = TSMessageViewAlpha;
} completion:^(BOOL finished) {
currentView.messageIsFullyDisplayed = YES;
}];
if (currentView.duration == TSMessageNotificationDurationAutomatic)
{
currentView.duration = kTSMessageAnimationDuration + kTSMessageDisplayTime + currentView.frame.size.height * kTSMessageExtraDisplayTimePerPixel;
}
if (currentView.duration != TSMessageNotificationDurationEndless)
{
dispatch_async(dispatch_get_main_queue(), ^
{
[self performSelector:@selector(fadeOutNotification:)
withObject:currentView
afterDelay:currentView.duration];
});
}
}
- (void)fadeOutNotification:(TSMessageView *)currentView
{
currentView.messageIsFullyDisplayed = NO;
[NSObject cancelPreviousPerformRequestsWithTarget:self
selector:@selector(fadeOutNotification:)
object:currentView];
CGPoint fadeOutToPoint;
if (currentView.messagePosition == TSMessageNotificationPositionTop)
{
fadeOutToPoint = CGPointMake(currentView.center.x, -CGRectGetHeight(currentView.frame) / 2.0);;
}
else
{
fadeOutToPoint = CGPointMake(currentView.center.x,
currentView.viewController.view.bounds.size.height);
}
[UIView animateWithDuration:kTSMessageAnimationDuration animations:^
{
currentView.center = fadeOutToPoint;
currentView.alpha = 0.0;
}
completion:^(BOOL finished)
{
[currentView removeFromSuperview];
if ([self.messages count] > 0)
{
[self.messages removeObjectAtIndex:0];
}
notificationActive = NO;
if ([self.messages count] > 0)
{
[self fadeInCurrentNotification];
}
}];
}
+ (BOOL)dismissActiveNotification
{
if ([[TSMessage sharedMessage].messages count] == 0) return NO;
dispatch_async(dispatch_get_main_queue(), ^
{
TSMessageView *currentMessage = [[TSMessage sharedMessage].messages objectAtIndex:0];
if (currentMessage.messageIsFullyDisplayed)
{
[[TSMessage sharedMessage] fadeOutNotification:currentMessage];
}
});
return YES;
}
#pragma mark class Methods to subclass
+ (UIViewController *)defaultViewController
{
NSLog(@"No view controller was set as parameter and TSMessage was not subclassed. If you want to subclass, implement defaultViewController to set the default viewController.");
return nil;
// Implement this in subclass
}
+ (CGFloat)navigationbarBottomOfViewController:(UIViewController *)viewController
{
return 0;
// Implement this in subclass
}
@end
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