forked from mirrors/linphone-iphone
85 lines
2.1 KiB
Objective-C
85 lines
2.1 KiB
Objective-C
//
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// UIAssistantTextField.m
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// linphone
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//
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// Created by Gautier Pelloux-Prayer on 30/09/15.
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//
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//
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#import "UIAssistantTextField.h"
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#import "Utils.h"
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@implementation UIAssistantTextField
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INIT_WITH_COMMON_CF {
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self.delegate = self;
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self.enabled = self.isEnabled; //force refresh bg color
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return self;
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}
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- (void)showError:(NSString *)msg {
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_errorLabel.text = msg;
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_lastText = self.text;
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_errorLabel.hidden = NO;
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self.layer.borderWidth = .8;
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self.layer.cornerRadius = 4.f;
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self.autoresizingMask = YES;
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self.layer.borderColor = _errorLabel.hidden ? [[UIColor clearColor] CGColor] : [[UIColor redColor] CGColor];
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}
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- (void)showError:(NSString *)msg when:(DisplayErrorPred)apred {
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_showErrorPredicate = apred;
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[self showError:msg];
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[self checkDisplayError];
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}
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- (void)checkDisplayError {
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_errorLabel.hidden = !(_canShowError && [self isInvalid]);
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self.layer.borderColor = _errorLabel.hidden ? [[UIColor clearColor] CGColor] : [[UIColor redColor] CGColor];
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}
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- (BOOL)isVisible {
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UIView* aview = self;
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while (aview) {
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if (aview.isHidden || !aview.isUserInteractionEnabled) return NO;
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aview = aview.superview;
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}
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return YES;
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}
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- (BOOL)isInvalid {
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return self.isVisible && _showErrorPredicate && _showErrorPredicate(_lastText);
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}
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- (void)setEnabled:(BOOL)enabled {
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[super setEnabled:enabled];
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self.backgroundColor = [self.backgroundColor colorWithAlphaComponent:enabled?1:0.3];
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}
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#pragma mark - UITextFieldDelegate Functions
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- (BOOL)textField:(UITextField *)textField
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shouldChangeCharactersInRange:(NSRange)range
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replacementString:(NSString *)string {
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// we must not show any error until user typed at least one character
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_canShowError |= (string.length > 0);
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_lastText = [textField.text stringByReplacingCharactersInRange:range withString:string];
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[self checkDisplayError];
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return YES;
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}
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- (void)textFieldDidBeginEditing:(UITextField *)textField {
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if (self.nextFieldResponder && !self.nextFieldResponder.hidden) {
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self.returnKeyType = UIReturnKeyNext;
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} else {
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self.returnKeyType = UIReturnKeyDone;
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}
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}
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- (void)textFieldDidEndEditing:(UITextField *)textField {
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_lastText = textField.text;
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[self checkDisplayError];
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}
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@end
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