forked from mirrors/linphone-iphone
73 lines
2 KiB
Objective-C
73 lines
2 KiB
Objective-C
//
|
|
// UIAssistantTextField.m
|
|
// linphone
|
|
//
|
|
// Created by Gautier Pelloux-Prayer on 30/09/15.
|
|
//
|
|
//
|
|
|
|
#import "UIAssistantTextField.h"
|
|
|
|
@implementation UIAssistantTextField
|
|
|
|
- (void)showError:(NSString *)msg {
|
|
if (!_errorLabel) {
|
|
[self showError:msg when:nil];
|
|
}
|
|
_errorLabel.text = msg;
|
|
_errorLabel.hidden = NO;
|
|
self.layer.borderColor = _errorLabel.hidden ? [[UIColor clearColor] CGColor] : [[UIColor redColor] CGColor];
|
|
}
|
|
|
|
- (void)showError:(NSString *)msg when:(UIDisplayError)apred {
|
|
_showErrorPredicate = apred;
|
|
|
|
self.layer.borderWidth = .8;
|
|
self.layer.cornerRadius = 4.f;
|
|
self.autoresizingMask = YES;
|
|
|
|
if (!_errorLabel) {
|
|
_errorLabel = [[UILabel alloc] initWithFrame:self.frame];
|
|
_errorLabel.font = [UIFont fontWithName:@"Helvetica" size:11.];
|
|
_errorLabel.textColor = [UIColor redColor];
|
|
}
|
|
_errorLabel.text = msg;
|
|
|
|
CGSize maximumLabelSize = CGSizeMake(self.frame.size.width, 9999);
|
|
CGSize expectedLabelSize =
|
|
[msg sizeWithFont:_errorLabel.font constrainedToSize:maximumLabelSize lineBreakMode:_errorLabel.lineBreakMode];
|
|
|
|
CGRect newFrame = _errorLabel.frame;
|
|
newFrame.size.height = expectedLabelSize.height;
|
|
newFrame.origin.y = self.frame.origin.y + self.frame.size.height;
|
|
_errorLabel.frame = newFrame;
|
|
|
|
_lastText = self.text;
|
|
|
|
[self checkDisplayError];
|
|
[self.superview addSubview:_errorLabel];
|
|
}
|
|
|
|
- (void)checkDisplayError {
|
|
_errorLabel.hidden = ![self isInvalid];
|
|
self.layer.borderColor = _errorLabel.hidden ? [[UIColor clearColor] CGColor] : [[UIColor redColor] CGColor];
|
|
}
|
|
|
|
- (BOOL)textField:(UITextField *)textField
|
|
shouldChangeCharactersInRange:(NSRange)range
|
|
replacementString:(NSString *)string {
|
|
_lastText = [textField.text stringByReplacingCharactersInRange:range withString:string];
|
|
[self checkDisplayError];
|
|
return YES;
|
|
}
|
|
|
|
- (void)textFieldDidEndEditing:(UITextField *)textField {
|
|
_canShowError = YES;
|
|
[self checkDisplayError];
|
|
}
|
|
|
|
- (BOOL)isInvalid {
|
|
return _canShowError && _showErrorPredicate && _showErrorPredicate(_lastText);
|
|
}
|
|
|
|
@end
|