forked from organicmaps/organicmaps
[ios] Callbacks for alerts.
This commit is contained in:
Timur Bernikowich
Alex Zolotarev
parent
49814cc571
commit
c96790752a
2 changed files with 206 additions and 0 deletions
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@ -72,3 +72,21 @@
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@interface SolidTouchImageView : UIImageView
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@end
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typedef void (^UIAlertViewBlock) (UIAlertView * alertView);
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typedef void (^UIAlertViewCompletionBlock) (UIAlertView * alertView, NSInteger buttonIndex);
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@interface UIAlertView (Blocks)
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@property (copy, nonatomic) UIAlertViewCompletionBlock tapBlock;
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@property (copy, nonatomic) UIAlertViewCompletionBlock willDismissBlock;
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@property (copy, nonatomic) UIAlertViewCompletionBlock didDismissBlock;
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@property (copy, nonatomic) UIAlertViewBlock willPresentBlock;
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@property (copy, nonatomic) UIAlertViewBlock didPresentBlock;
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@property (copy, nonatomic) UIAlertViewBlock cancelBlock;
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@property (copy, nonatomic) BOOL(^shouldEnableFirstOtherButtonBlock)(UIAlertView * alertView);
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@end
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@ -256,3 +256,191 @@
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- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event {}
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@end
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#import <objc/runtime.h>
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static const void * UIAlertViewOriginalDelegateKey = & UIAlertViewOriginalDelegateKey;
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static const void * UIAlertViewTapBlockKey = & UIAlertViewTapBlockKey;
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static const void * UIAlertViewWillPresentBlockKey = & UIAlertViewWillPresentBlockKey;
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static const void * UIAlertViewDidPresentBlockKey = & UIAlertViewDidPresentBlockKey;
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static const void * UIAlertViewWillDismissBlockKey = & UIAlertViewWillDismissBlockKey;
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static const void * UIAlertViewDidDismissBlockKey = & UIAlertViewDidDismissBlockKey;
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static const void * UIAlertViewCancelBlockKey = & UIAlertViewCancelBlockKey;
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static const void * UIAlertViewShouldEnableFirstOtherButtonBlockKey = & UIAlertViewShouldEnableFirstOtherButtonBlockKey;
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@implementation UIAlertView (Blocks)
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- (void)_checkAlertViewDelegate
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{
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if (self.delegate != (id<UIAlertViewDelegate>)self)
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{
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objc_setAssociatedObject(self, UIAlertViewOriginalDelegateKey, self.delegate, OBJC_ASSOCIATION_ASSIGN);
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self.delegate = (id <UIAlertViewDelegate>)self;
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}
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}
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- (UIAlertViewCompletionBlock)tapBlock
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{
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return objc_getAssociatedObject(self, UIAlertViewTapBlockKey);
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}
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- (void)setTapBlock:(UIAlertViewCompletionBlock)tapBlock
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{
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[self _checkAlertViewDelegate];
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objc_setAssociatedObject(self, UIAlertViewTapBlockKey, tapBlock, OBJC_ASSOCIATION_COPY);
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}
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- (UIAlertViewCompletionBlock)willDismissBlock
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{
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return objc_getAssociatedObject(self, UIAlertViewWillDismissBlockKey);
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}
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- (void)setWillDismissBlock:(UIAlertViewCompletionBlock)willDismissBlock
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{
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[self _checkAlertViewDelegate];
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objc_setAssociatedObject(self, UIAlertViewWillDismissBlockKey, willDismissBlock, OBJC_ASSOCIATION_COPY);
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}
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- (UIAlertViewCompletionBlock)didDismissBlock
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{
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return objc_getAssociatedObject(self, UIAlertViewDidDismissBlockKey);
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}
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- (void)setDidDismissBlock:(UIAlertViewCompletionBlock)didDismissBlock
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{
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[self _checkAlertViewDelegate];
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objc_setAssociatedObject(self, UIAlertViewDidDismissBlockKey, didDismissBlock, OBJC_ASSOCIATION_COPY);
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}
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- (UIAlertViewBlock)willPresentBlock
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{
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return objc_getAssociatedObject(self, UIAlertViewWillPresentBlockKey);
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}
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- (void)setWillPresentBlock:(UIAlertViewBlock)willPresentBlock
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{
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[self _checkAlertViewDelegate];
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objc_setAssociatedObject(self, UIAlertViewWillPresentBlockKey, willPresentBlock, OBJC_ASSOCIATION_COPY);
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}
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- (UIAlertViewBlock)didPresentBlock
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{
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return objc_getAssociatedObject(self, UIAlertViewDidPresentBlockKey);
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}
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- (void)setDidPresentBlock:(UIAlertViewBlock)didPresentBlock
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{
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[self _checkAlertViewDelegate];
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objc_setAssociatedObject(self, UIAlertViewDidPresentBlockKey, didPresentBlock, OBJC_ASSOCIATION_COPY);
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}
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- (UIAlertViewBlock)cancelBlock
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{
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return objc_getAssociatedObject(self, UIAlertViewCancelBlockKey);
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}
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- (void)setCancelBlock:(UIAlertViewBlock)cancelBlock
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{
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[self _checkAlertViewDelegate];
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objc_setAssociatedObject(self, UIAlertViewCancelBlockKey, cancelBlock, OBJC_ASSOCIATION_COPY);
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}
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- (void)setShouldEnableFirstOtherButtonBlock:(BOOL(^)(UIAlertView * alertView))shouldEnableFirstOtherButtonBlock
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{
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[self _checkAlertViewDelegate];
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objc_setAssociatedObject(self, UIAlertViewShouldEnableFirstOtherButtonBlockKey, shouldEnableFirstOtherButtonBlock, OBJC_ASSOCIATION_COPY);
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}
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- (BOOL(^)(UIAlertView * alertView))shouldEnableFirstOtherButtonBlock
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{
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return objc_getAssociatedObject(self, UIAlertViewShouldEnableFirstOtherButtonBlockKey);
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}
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#pragma mark - UIAlertViewDelegate
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- (void)willPresentAlertView:(UIAlertView *)alertView
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{
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UIAlertViewBlock block = alertView.willPresentBlock;
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if (block)
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block(alertView);
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id originalDelegate = objc_getAssociatedObject(self, UIAlertViewOriginalDelegateKey);
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if (originalDelegate && [originalDelegate respondsToSelector:@selector(willPresentAlertView:)])
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[originalDelegate willPresentAlertView:alertView];
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}
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- (void)didPresentAlertView:(UIAlertView *)alertView
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{
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UIAlertViewBlock block = alertView.didPresentBlock;
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if (block)
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block(alertView);
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id originalDelegate = objc_getAssociatedObject(self, UIAlertViewOriginalDelegateKey);
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if (originalDelegate && [originalDelegate respondsToSelector:@selector(didPresentAlertView:)])
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[originalDelegate didPresentAlertView:alertView];
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}
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- (void)alertViewCancel:(UIAlertView *)alertView {
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UIAlertViewBlock block = alertView.cancelBlock;
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if (block)
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block(alertView);
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id originalDelegate = objc_getAssociatedObject(self, UIAlertViewOriginalDelegateKey);
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if (originalDelegate && [originalDelegate respondsToSelector:@selector(alertViewCancel:)])
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[originalDelegate alertViewCancel:alertView];
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}
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- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
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UIAlertViewCompletionBlock completion = alertView.tapBlock;
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if (completion)
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completion(alertView, buttonIndex);
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id originalDelegate = objc_getAssociatedObject(self, UIAlertViewOriginalDelegateKey);
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if (originalDelegate && [originalDelegate respondsToSelector:@selector(alertView:clickedButtonAtIndex:)])
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[originalDelegate alertView:alertView clickedButtonAtIndex:buttonIndex];
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}
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- (void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex {
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UIAlertViewCompletionBlock completion = alertView.willDismissBlock;
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if (completion)
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completion(alertView, buttonIndex);
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id originalDelegate = objc_getAssociatedObject(self, UIAlertViewOriginalDelegateKey);
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if (originalDelegate && [originalDelegate respondsToSelector:@selector(alertView:willDismissWithButtonIndex:)])
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[originalDelegate alertView:alertView willDismissWithButtonIndex:buttonIndex];
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}
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- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex
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{
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UIAlertViewCompletionBlock completion = alertView.didDismissBlock;
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if (completion)
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completion(alertView, buttonIndex);
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id originalDelegate = objc_getAssociatedObject(self, UIAlertViewOriginalDelegateKey);
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if (originalDelegate && [originalDelegate respondsToSelector:@selector(alertView:didDismissWithButtonIndex:)])
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[originalDelegate alertView:alertView didDismissWithButtonIndex:buttonIndex];
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}
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- (BOOL)alertViewShouldEnableFirstOtherButton:(UIAlertView *)alertView
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{
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BOOL(^shouldEnableFirstOtherButtonBlock)(UIAlertView * alertView) = alertView.shouldEnableFirstOtherButtonBlock;
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if (shouldEnableFirstOtherButtonBlock)
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return shouldEnableFirstOtherButtonBlock(alertView);
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id originalDelegate = objc_getAssociatedObject(self, UIAlertViewOriginalDelegateKey);
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if (originalDelegate && [originalDelegate respondsToSelector:@selector(alertViewShouldEnableFirstOtherButton:)])
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return [originalDelegate alertViewShouldEnableFirstOtherButton:alertView];
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return YES;
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}
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@end
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