476 lines
14 KiB
Mathematica
476 lines
14 KiB
Mathematica
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//
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// BlockAlertView.m
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//
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//
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#import "BlockAlertView.h"
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#import "BlockBackground.h"
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#import "BlockUI.h"
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@implementation BlockAlertView
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@synthesize view = _view;
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@synthesize backgroundImage = _backgroundImage;
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@synthesize vignetteBackground = _vignetteBackground;
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static UIImage *background = nil;
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static UIImage *backgroundlandscape = nil;
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static UIFont *titleFont = nil;
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static UIFont *messageFont = nil;
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static UIFont *buttonFont = nil;
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#pragma mark - init
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+ (void)initialize
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{
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if (self == [BlockAlertView class])
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{
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background = [UIImage imageNamed:kAlertViewBackground];
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background =
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[[background stretchableImageWithLeftCapWidth:0
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topCapHeight:kAlertViewBackgroundCapHeight] retain];
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backgroundlandscape = [UIImage imageNamed:kAlertViewBackgroundLandscape];
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backgroundlandscape = [[backgroundlandscape
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stretchableImageWithLeftCapWidth:0
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topCapHeight:kAlertViewBackgroundCapHeight] retain];
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titleFont = [kAlertViewTitleFont retain];
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messageFont = [kAlertViewMessageFont retain];
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buttonFont = [kAlertViewButtonFont retain];
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}
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}
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+ (BlockAlertView *)alertWithTitle:(NSString *)title message:(NSString *)message
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{
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return [[[BlockAlertView alloc] initWithTitle:title message:message] autorelease];
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}
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+ (void)showInfoAlertWithTitle:(NSString *)title message:(NSString *)message
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{
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BlockAlertView *alert = [[BlockAlertView alloc] initWithTitle:title message:message];
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[alert setCancelButtonWithTitle:NSLocalizedString(@"Dismiss", nil) block:nil];
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[alert show];
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[alert release];
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}
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+ (void)showErrorAlert:(NSError *)error
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{
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BlockAlertView *alert = [[BlockAlertView alloc]
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initWithTitle:NSLocalizedString(@"Operation Failed", nil)
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message:[NSString
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stringWithFormat:NSLocalizedString(
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@"The operation did not complete successfully: %@",
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nil),
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error]];
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[alert setCancelButtonWithTitle:@"Dismiss" block:nil];
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[alert show];
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[alert release];
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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#pragma mark - NSObject
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- (void)addComponents:(CGRect)frame
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{
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if (_title)
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{
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CGSize size = [_title sizeWithFont:titleFont
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constrainedToSize:CGSizeMake(frame.size.width - kAlertViewBorder * 2, 1000)
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lineBreakMode:NSLineBreakByWordWrapping];
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UILabel *labelView = [[UILabel alloc]
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initWithFrame:CGRectMake(kAlertViewBorder, _height,
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frame.size.width - kAlertViewBorder * 2, size.height)];
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labelView.font = titleFont;
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labelView.numberOfLines = 0;
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labelView.lineBreakMode = NSLineBreakByWordWrapping;
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labelView.textColor = kAlertViewTitleTextColor;
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labelView.backgroundColor = [UIColor clearColor];
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labelView.textAlignment = NSTextAlignmentCenter;
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labelView.shadowColor = kAlertViewTitleShadowColor;
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labelView.shadowOffset = kAlertViewTitleShadowOffset;
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labelView.text = _title;
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[_view addSubview:labelView];
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[labelView release];
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_height += size.height + kAlertViewBorder;
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}
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if (_message)
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{
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CGSize size =
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[_message sizeWithFont:messageFont
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constrainedToSize:CGSizeMake(frame.size.width - kAlertViewBorder * 2, 1000)
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lineBreakMode:NSLineBreakByWordWrapping];
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UILabel *labelView = [[UILabel alloc]
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initWithFrame:CGRectMake(kAlertViewBorder, _height,
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frame.size.width - kAlertViewBorder * 2, size.height)];
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labelView.font = messageFont;
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labelView.numberOfLines = 0;
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labelView.lineBreakMode = NSLineBreakByWordWrapping;
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labelView.textColor = kAlertViewMessageTextColor;
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labelView.backgroundColor = [UIColor clearColor];
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labelView.textAlignment = NSTextAlignmentCenter;
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labelView.shadowColor = kAlertViewMessageShadowColor;
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labelView.shadowOffset = kAlertViewMessageShadowOffset;
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labelView.text = _message;
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[_view addSubview:labelView];
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[labelView release];
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_height += size.height + kAlertViewBorder;
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}
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}
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- (void)setupDisplay
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{
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[[_view subviews] enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
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[obj removeFromSuperview];
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}];
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UIWindow *parentView = [BlockBackground sharedInstance];
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CGRect frame = parentView.bounds;
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frame.origin.x = floorf((frame.size.width - background.size.width) * 0.5);
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frame.size.width = background.size.width;
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UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
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if (UIInterfaceOrientationIsLandscape(orientation))
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{
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frame.size.width += 150;
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frame.origin.x -= 75;
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}
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_view.frame = frame;
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_height = kAlertViewBorder + 15;
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if (NeedsLandscapePhoneTweaks)
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{
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_height -= 15; // landscape phones need to trimmed a bit
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}
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[self addComponents:frame];
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if (_shown)
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[self show];
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}
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- (id)initWithTitle:(NSString *)title message:(NSString *)message
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{
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self = [super init];
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if (self)
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{
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_title = [title copy];
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_message = [message copy];
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_view = [[UIView alloc] init];
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_view.autoresizingMask =
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UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleTopMargin |
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UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin;
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_blocks = [[NSMutableArray alloc] init];
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[[NSNotificationCenter defaultCenter]
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addObserver:self
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selector:@selector(setupDisplay)
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name:UIApplicationDidChangeStatusBarOrientationNotification
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object:nil];
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if ([self class] == [BlockAlertView class])
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[self setupDisplay];
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_vignetteBackground = NO;
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}
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return self;
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}
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- (void)dealloc
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{
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[_title release];
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[_message release];
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[_backgroundImage release];
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[_view release];
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[_blocks release];
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[super dealloc];
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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#pragma mark - Public
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- (void)addButtonWithTitle:(NSString *)title color:(NSString *)color block:(void (^)())block
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{
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[_blocks addObject:[NSArray arrayWithObjects:block ? [[block copy] autorelease] : [NSNull null],
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title, color, nil]];
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}
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- (void)addButtonWithTitle:(NSString *)title block:(void (^)())block
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{
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[self addButtonWithTitle:title color:@"gray" block:block];
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}
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- (void)setCancelButtonWithTitle:(NSString *)title block:(void (^)())block
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{
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[self addButtonWithTitle:title color:@"black" block:block];
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}
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- (void)setDestructiveButtonWithTitle:(NSString *)title block:(void (^)())block
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{
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[self addButtonWithTitle:title color:@"red" block:block];
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}
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- (void)show
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{
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_shown = YES;
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BOOL isSecondButton = NO;
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NSUInteger index = 0;
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for (NSUInteger i = 0; i < _blocks.count; i++)
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{
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NSArray *block = [_blocks objectAtIndex:i];
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NSString *title = [block objectAtIndex:1];
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NSString *color = [block objectAtIndex:2];
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UIImage *image =
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[UIImage imageNamed:[NSString stringWithFormat:@"alert-%@-button.png", color]];
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image = [image stretchableImageWithLeftCapWidth:(int)(image.size.width + 1) >> 1
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topCapHeight:0];
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CGFloat maxHalfWidth = floorf((_view.bounds.size.width - kAlertViewBorder * 3) * 0.5);
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CGFloat width = _view.bounds.size.width - kAlertViewBorder * 2;
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CGFloat xOffset = kAlertViewBorder;
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if (isSecondButton)
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{
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width = maxHalfWidth;
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xOffset = width + kAlertViewBorder * 2;
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isSecondButton = NO;
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}
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else if (i + 1 < _blocks.count)
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{
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// In this case there's another button.
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// Let's check if they fit on the same line.
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CGSize size = [title sizeWithFont:buttonFont
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minFontSize:10
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actualFontSize:nil
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forWidth:_view.bounds.size.width - kAlertViewBorder * 2
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lineBreakMode:NSLineBreakByClipping];
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if (size.width < maxHalfWidth - kAlertViewBorder)
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{
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// It might fit. Check the next Button
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NSArray *block2 = [_blocks objectAtIndex:i + 1];
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NSString *title2 = [block2 objectAtIndex:1];
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size = [title2 sizeWithFont:buttonFont
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minFontSize:10
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actualFontSize:nil
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forWidth:_view.bounds.size.width - kAlertViewBorder * 2
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lineBreakMode:NSLineBreakByClipping];
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if (size.width < maxHalfWidth - kAlertViewBorder)
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{
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// They'll fit!
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isSecondButton = YES; // For the next iteration
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width = maxHalfWidth;
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}
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}
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}
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else if (_blocks.count == 1)
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{
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// In this case this is the ony button. We'll size according to the text
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CGSize size = [title sizeWithFont:buttonFont
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minFontSize:10
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actualFontSize:nil
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forWidth:_view.bounds.size.width - kAlertViewBorder * 2
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lineBreakMode:UILineBreakModeClip];
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size.width = MAX(size.width, 80);
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if (size.width + 2 * kAlertViewBorder < width)
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{
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width = size.width + 2 * kAlertViewBorder;
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xOffset = floorf((_view.bounds.size.width - width) * 0.5);
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}
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}
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UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
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button.frame = CGRectMake(xOffset, _height, width, kAlertButtonHeight);
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button.titleLabel.font = buttonFont;
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if (IOS_LESS_THAN_6)
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{
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wdeprecated-declarations"
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button.titleLabel.minimumFontSize = 10;
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#pragma clang diagnostic pop
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}
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else
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{
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button.titleLabel.adjustsFontSizeToFitWidth = YES;
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button.titleLabel.adjustsLetterSpacingToFitWidth = YES;
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button.titleLabel.minimumScaleFactor = 0.1;
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}
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button.titleLabel.textAlignment = NSTextAlignmentCenter;
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button.titleLabel.shadowOffset = kAlertViewButtonShadowOffset;
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button.backgroundColor = [UIColor clearColor];
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button.tag = i + 1;
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[button setBackgroundImage:image forState:UIControlStateNormal];
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[button setTitleColor:kAlertViewButtonTextColor forState:UIControlStateNormal];
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[button setTitleShadowColor:kAlertViewButtonShadowColor forState:UIControlStateNormal];
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[button setTitle:title forState:UIControlStateNormal];
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button.accessibilityLabel = title;
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[button addTarget:self
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action:@selector(buttonClicked:)
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forControlEvents:UIControlEventTouchUpInside];
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[_view addSubview:button];
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if (!isSecondButton)
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_height += kAlertButtonHeight + kAlertViewBorder;
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index++;
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}
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_height += 10; // Margin for the shadow
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if (_height < background.size.height)
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{
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CGFloat offset = background.size.height - _height;
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_height = background.size.height;
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CGRect frame;
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for (NSUInteger i = 0; i < _blocks.count; i++)
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{
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UIButton *btn = (UIButton *)[_view viewWithTag:i + 1];
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frame = btn.frame;
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frame.origin.y += offset;
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btn.frame = frame;
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}
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}
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CGRect frame = _view.frame;
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frame.origin.y = -_height;
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frame.size.height = _height;
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_view.frame = frame;
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UIImageView *modalBackground = [[UIImageView alloc] initWithFrame:_view.bounds];
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if (UIInterfaceOrientationIsLandscape([[UIApplication sharedApplication] statusBarOrientation]))
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modalBackground.image = backgroundlandscape;
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else
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modalBackground.image = background;
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modalBackground.contentMode = UIViewContentModeScaleToFill;
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modalBackground.autoresizingMask =
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UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
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[_view insertSubview:modalBackground atIndex:0];
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[modalBackground release];
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if (_backgroundImage)
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{
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[BlockBackground sharedInstance].backgroundImage = _backgroundImage;
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[_backgroundImage release];
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_backgroundImage = nil;
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}
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[BlockBackground sharedInstance].vignetteBackground = _vignetteBackground;
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[[BlockBackground sharedInstance] addToMainWindow:_view];
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__block CGPoint center = _view.center;
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center.y = floorf([BlockBackground sharedInstance].bounds.size.height * 0.5) + kAlertViewBounce;
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_cancelBounce = NO;
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[UIView animateWithDuration:0.4
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delay:0.0
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options:UIViewAnimationCurveEaseOut
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animations:^{
|
||
|
|
[BlockBackground sharedInstance].alpha = 1.0f;
|
||
|
|
_view.center = center;
|
||
|
|
}
|
||
|
|
completion:^(BOOL finished) {
|
||
|
|
if (_cancelBounce)
|
||
|
|
return;
|
||
|
|
|
||
|
|
[UIView animateWithDuration:0.1
|
||
|
|
delay:0.0
|
||
|
|
options:0
|
||
|
|
animations:^{
|
||
|
|
center.y -= kAlertViewBounce;
|
||
|
|
_view.center = center;
|
||
|
|
}
|
||
|
|
completion:^(BOOL finished) {
|
||
|
|
[[NSNotificationCenter defaultCenter]
|
||
|
|
postNotificationName:@"AlertViewFinishedAnimations"
|
||
|
|
object:nil];
|
||
|
|
}];
|
||
|
|
}];
|
||
|
|
|
||
|
|
[self retain];
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)dismissWithClickedButtonIndex:(NSInteger)buttonIndex animated:(BOOL)animated
|
||
|
|
{
|
||
|
|
_shown = NO;
|
||
|
|
|
||
|
|
[[NSNotificationCenter defaultCenter] removeObserver:self];
|
||
|
|
|
||
|
|
if (buttonIndex >= 0 && buttonIndex < [_blocks count])
|
||
|
|
{
|
||
|
|
id obj = [[_blocks objectAtIndex:buttonIndex] objectAtIndex:0];
|
||
|
|
if (![obj isEqual:[NSNull null]])
|
||
|
|
{
|
||
|
|
((void (^)())obj)();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (animated)
|
||
|
|
{
|
||
|
|
[UIView animateWithDuration:0.1
|
||
|
|
delay:0.0
|
||
|
|
options:0
|
||
|
|
animations:^{
|
||
|
|
CGPoint center = _view.center;
|
||
|
|
center.y += 20;
|
||
|
|
_view.center = center;
|
||
|
|
}
|
||
|
|
completion:^(BOOL finished) {
|
||
|
|
[UIView animateWithDuration:0.4
|
||
|
|
delay:0.0
|
||
|
|
options:UIViewAnimationCurveEaseIn
|
||
|
|
animations:^{
|
||
|
|
CGRect frame = _view.frame;
|
||
|
|
frame.origin.y = -frame.size.height;
|
||
|
|
_view.frame = frame;
|
||
|
|
[[BlockBackground sharedInstance] reduceAlphaIfEmpty];
|
||
|
|
}
|
||
|
|
completion:^(BOOL finished) {
|
||
|
|
[[BlockBackground sharedInstance] removeView:_view];
|
||
|
|
[_view release];
|
||
|
|
_view = nil;
|
||
|
|
[self autorelease];
|
||
|
|
}];
|
||
|
|
}];
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
[[BlockBackground sharedInstance] removeView:_view];
|
||
|
|
[_view release];
|
||
|
|
_view = nil;
|
||
|
|
[self autorelease];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
||
|
|
#pragma mark - Action
|
||
|
|
|
||
|
|
- (void)buttonClicked:(id)sender
|
||
|
|
{
|
||
|
|
/* Run the button's block */
|
||
|
|
int buttonIndex = [sender tag] - 1;
|
||
|
|
[self dismissWithClickedButtonIndex:buttonIndex animated:YES];
|
||
|
|
}
|
||
|
|
|
||
|
|
@end
|