377 lines
14 KiB
Objective-C
377 lines
14 KiB
Objective-C
/*
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Copyright (c) 2015, Apple Inc. All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation and/or
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other materials provided with the distribution.
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3. Neither the name of the copyright holder(s) nor the names of any contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission. No license is granted to the trademarks of
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the copyright holders even if such marks are included in this software.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#import "ORKSurveyAnswerCellForNumber.h"
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#import "ORKTextFieldView.h"
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#import "ORKDontKnowButton.h"
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#import "ORKAnswerFormat_Internal.h"
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#import "ORKQuestionStep_Internal.h"
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#import "ORKHelpers_Internal.h"
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#import "ORKSkin.h"
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static const CGFloat ErrorLabelTopPadding = 4.0;
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static const CGFloat DefaultPadding = 8.0;
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static const CGFloat HorizontalPadding = 16.0;
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static const CGFloat MinTextFieldViewHeight = 40.0;
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static const CGFloat ErrorLabelBottomPadding = 10.0;
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static const CGFloat DontKnowButtonTopBottomPadding = 16.0;
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@interface ORKSurveyAnswerCellForNumber ()
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@property (nonatomic, strong) ORKTextFieldView *textFieldView;
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@property (nonatomic, strong) UILabel *errorLabel;
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@end
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@implementation ORKSurveyAnswerCellForNumber {
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NSNumberFormatter *_numberFormatter;
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NSNumber *_defaultNumericAnswer;
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NSMutableArray *constraints;
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ORKDontKnowButton *_dontKnowButton;
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UIView *_dividerView;
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BOOL _dontKnowButtonActive;
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}
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- (ORKUnitTextField *)textField {
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return _textFieldView.textField;
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}
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- (void)numberCell_initialize {
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ORKQuestionType questionType = self.step.questionType;
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_numberFormatter = ORKDecimalNumberFormatter();
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(localeDidChange:) name:NSCurrentLocaleDidChangeNotification object:nil];
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_dontKnowButtonActive = NO;
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ORKAnswerFormat *answerFormat = self.step.answerFormat;
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{
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ORKNumericAnswerFormat *numericAnswerFormat = ORKDynamicCast(answerFormat, ORKNumericAnswerFormat);
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_textFieldView.hideUnitWhenAnswerEmpty = numericAnswerFormat ? numericAnswerFormat.hideUnitWhenAnswerIsEmpty : NO;
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}
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_textFieldView = [[ORKTextFieldView alloc] init];
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ORKUnitTextField *textField = _textFieldView.textField;
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textField.delegate = self;
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textField.allowsSelection = YES;
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if (questionType == ORKQuestionTypeDecimal) {
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textField.keyboardType = UIKeyboardTypeDecimalPad;
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} else if (questionType == ORKQuestionTypeInteger) {
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textField.keyboardType = UIKeyboardTypeNumberPad;
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}
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[textField addTarget:self action:@selector(valueFieldDidChange:) forControlEvents:UIControlEventEditingChanged];
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[self addSubview:_textFieldView];
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_errorLabel = [UILabel new];
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[_errorLabel setTextColor: [UIColor redColor]];
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[self.errorLabel setFont:[UIFont preferredFontForTextStyle:UIFontTextStyleFootnote]];
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_errorLabel.numberOfLines = 0;
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_errorLabel.translatesAutoresizingMaskIntoConstraints = NO;
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[self addSubview:_errorLabel];
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if (answerFormat.shouldShowDontKnowButton) {
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if (!_dontKnowButton) {
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_dontKnowButton = [ORKDontKnowButton new];
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_dontKnowButton.customDontKnowButtonText = answerFormat.customDontKnowButtonText;
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_dontKnowButton.translatesAutoresizingMaskIntoConstraints = NO;
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[_dontKnowButton addTarget:self action:@selector(dontKnowButtonWasPressed) forControlEvents:UIControlEventTouchUpInside];
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}
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if (!_dividerView) {
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_dividerView = [UIView new];
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_dividerView.translatesAutoresizingMaskIntoConstraints = NO;
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[_dividerView setBackgroundColor:[UIColor separatorColor]];
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}
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[self addSubview:_dontKnowButton];
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[self addSubview:_dividerView];
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if (self.answer == [ORKDontKnowAnswer answer]) {
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[_dontKnowButton setActive:YES];
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}
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}
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self.layoutMargins = ORKStandardLayoutMarginsForTableViewCell(self);
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ORKEnableAutoLayoutForViews(@[_textFieldView]);
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[self setUpConstraints];
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}
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- (void)dealloc {
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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}
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- (void)localeDidChange:(NSNotification *)note {
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// On a locale change, re-format the value with the current locale
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_numberFormatter.locale = [NSLocale currentLocale];
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[self answerDidChange];
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}
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- (void)traitCollectionDidChange:(UITraitCollection *)previousTraitCollection {
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self.layoutMargins = ORKStandardLayoutMarginsForTableViewCell(self);
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}
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- (void)dontKnowButtonWasPressed {
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if (![_dontKnowButton active]) {
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[_dontKnowButton setActive:YES];
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[_textFieldView.textField setText:nil];
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[_textFieldView endEditing:YES];
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[self textFieldShouldClear:_textFieldView.textField];
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}
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}
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- (NSArray *)suggestedCellHeightConstraintsForView:(UIView *)view {
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return @[
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[NSLayoutConstraint constraintWithItem:self
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attribute:NSLayoutAttributeBottom
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relatedBy:NSLayoutRelationEqual
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toItem:_dontKnowButton ?: _errorLabel
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attribute:NSLayoutAttributeBottom
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multiplier:1.0
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constant:_dontKnowButton ? (DontKnowButtonTopBottomPadding - self.layoutMargins.bottom): (ErrorLabelBottomPadding - self.layoutMargins.bottom)]
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];
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}
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- (void)setUpConstraints {
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_textFieldView.translatesAutoresizingMaskIntoConstraints = NO;
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_errorLabel.translatesAutoresizingMaskIntoConstraints = NO;
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_dividerView.translatesAutoresizingMaskIntoConstraints = NO;
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_dontKnowButton.translatesAutoresizingMaskIntoConstraints = NO;
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[[_textFieldView.topAnchor constraintEqualToAnchor:self.topAnchor constant:DefaultPadding] setActive:YES];
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[[_textFieldView.leftAnchor constraintEqualToAnchor:self.leftAnchor constant:HorizontalPadding] setActive:YES];
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[[_textFieldView.rightAnchor constraintEqualToAnchor:self.rightAnchor constant:-HorizontalPadding] setActive:YES];
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[[_textFieldView.heightAnchor constraintGreaterThanOrEqualToConstant:MinTextFieldViewHeight] setActive:YES];
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[[_errorLabel.topAnchor constraintEqualToAnchor:_textFieldView.bottomAnchor constant:ErrorLabelTopPadding] setActive:YES];
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[[_errorLabel.leftAnchor constraintEqualToAnchor:_textFieldView.leftAnchor] setActive:YES];
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[[_errorLabel.rightAnchor constraintEqualToAnchor:self.rightAnchor] setActive:YES];
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if (_dontKnowButton) {
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CGFloat separatorHeight = 1.0 / [UIScreen mainScreen].scale;
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[[_dividerView.topAnchor constraintEqualToAnchor:_errorLabel.bottomAnchor constant:ErrorLabelBottomPadding] setActive:YES];
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[[_dividerView.leftAnchor constraintEqualToAnchor:self.leftAnchor] setActive:YES];
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[[_dividerView.rightAnchor constraintEqualToAnchor:self.rightAnchor] setActive:YES];
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[[_dividerView.heightAnchor constraintEqualToConstant:separatorHeight] setActive:YES];
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[[_dontKnowButton.topAnchor constraintEqualToAnchor:_dividerView.bottomAnchor constant:DontKnowButtonTopBottomPadding] setActive:YES];
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[[_dontKnowButton.centerXAnchor constraintEqualToAnchor:self.centerXAnchor] setActive:YES];
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}
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}
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- (BOOL)becomeFirstResponder {
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return [[self textField] becomeFirstResponder];
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}
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- (void)prepareView {
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if (self.textField == nil ) {
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[self numberCell_initialize];
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}
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[self answerDidChange];
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[super prepareView];
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}
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- (BOOL)isAnswerValid {
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id answer = self.answer;
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if (answer == ORKNullAnswerValue() || answer == [ORKDontKnowAnswer answer]) {
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return YES;
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}
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ORKAnswerFormat *answerFormat = [self.step impliedAnswerFormat];
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ORKNumericAnswerFormat *numericFormat = (ORKNumericAnswerFormat *)answerFormat;
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return [numericFormat isAnswerValidWithString:self.textField.text];
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}
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- (BOOL)shouldContinue {
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BOOL isValid = [self isAnswerValid];
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if (!isValid) {
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[self updateErrorLabelWithMessage:ORKLocalizedString(@"RANGE_ALERT_TITLE", nil)];
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}
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return isValid;
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}
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- (void)assignDefaultAnswer {
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if (_defaultNumericAnswer) {
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[self ork_setAnswer:_defaultNumericAnswer];
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if (self.textField) {
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self.textField.text = [_numberFormatter stringFromNumber:_defaultNumericAnswer];
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}
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}
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}
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- (void)answerDidChange {
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id answer = self.answer;
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ORKAnswerFormat *answerFormat = [self.step impliedAnswerFormat];
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ORKNumericAnswerFormat *numericAnswerFormat = ORKDynamicCast(answerFormat, ORKNumericAnswerFormat);
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_defaultNumericAnswer = numericAnswerFormat.defaultNumericAnswer;
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NSString *placeholder = numericAnswerFormat.placeholder ? :
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(self.step.placeholder ? : ORKLocalizedString(@"PLACEHOLDER_TEXT_OR_NUMBER", nil));
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self.textField.manageUnitAndPlaceholder = YES;
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self.textField.unit = numericAnswerFormat.displayUnit ?: numericAnswerFormat.unit;
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self.textField.placeholder = placeholder;
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if (answer == [ORKDontKnowAnswer answer]) {
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[self dontKnowButtonWasPressed];
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} else if (answer != ORKNullAnswerValue() && ![_dontKnowButton active]) {
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if (!answer) {
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[self assignDefaultAnswer];
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}
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else {
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NSString *displayValue = answer;
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if ([answer isKindOfClass:[NSNumber class]]) {
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displayValue = [_numberFormatter stringFromNumber:answer];
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}
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self.textField.text = displayValue;
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}
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}
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}
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- (void)updateErrorLabelWithMessage:(NSString *)message {
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NSString *separatorString = @":";
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NSString *stringtoParse = message ? : ORKLocalizedString(@"RANGE_ALERT_TITLE", @"");
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NSString *parsedString = [stringtoParse componentsSeparatedByString:separatorString].firstObject;
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NSString *errorMessage = [NSString stringWithFormat:@" %@", parsedString];
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NSMutableAttributedString *fullString = [[NSMutableAttributedString alloc] initWithString:errorMessage];
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NSTextAttachment *imageAttachment = [NSTextAttachment new];
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UIImageSymbolConfiguration *imageConfig = [UIImageSymbolConfiguration configurationWithPointSize:12 weight:UIImageSymbolWeightRegular scale:UIImageSymbolScaleMedium];
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UIImage *exclamationMarkImage = [UIImage systemImageNamed:@"exclamationmark.circle"];
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UIImage *configuredImage = [exclamationMarkImage imageByApplyingSymbolConfiguration:imageConfig];
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imageAttachment.image = [configuredImage imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
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NSAttributedString *imageString = [NSAttributedString attributedStringWithAttachment:imageAttachment];
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[fullString insertAttributedString:imageString atIndex:0];
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self.errorLabel.attributedText = fullString;
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[self setUpConstraints];
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}
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#pragma mark - UITextFieldDelegate
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- (void)valueFieldDidChange:(UITextField *)textField {
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ORKNumericAnswerFormat *answerFormat = (ORKNumericAnswerFormat *)[self.step impliedAnswerFormat];
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NSString *sanitizedText = [answerFormat sanitizedTextFieldText:[textField text] decimalSeparator:[_numberFormatter decimalSeparator]];
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textField.text = sanitizedText;
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[self setAnswerWithText:textField.text];
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BOOL isValid = [self isAnswerValid];
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if (isValid && _errorLabel.attributedText != nil) {
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_errorLabel.attributedText = nil;
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[self setUpConstraints];
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}
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if (_dontKnowButton && [_dontKnowButton active]) {
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[_dontKnowButton setActive:NO];
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}
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}
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- (BOOL)textFieldShouldClear:(UITextField *)textField {
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if ([_dontKnowButton active]) {
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[self ork_setAnswer:[ORKDontKnowAnswer answer]];
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} else {
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[self ork_setAnswer:ORKNullAnswerValue()];
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}
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return YES;
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}
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- (void)setAnswerWithText:(NSString *)text {
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BOOL updateInput = NO;
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id answer = ORKNullAnswerValue();
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if (text.length) {
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answer = [[NSDecimalNumber alloc] initWithString:text locale:[NSLocale currentLocale]];
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if (!answer) {
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answer = ORKNullAnswerValue();
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updateInput = YES;
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}
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}
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[self ork_setAnswer:answer];
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if (updateInput) {
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[self answerDidChange];
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}
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}
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- (BOOL)textFieldShouldEndEditing:(UITextField *)textField {
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BOOL isValid = [self isAnswerValid];
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if (!isValid) {
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}
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return YES;
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}
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+ (BOOL)shouldDisplayWithSeparators {
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return NO;
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}
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- (BOOL)textFieldShouldReturn:(UITextField *)textField {
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BOOL isValid = [self isAnswerValid];
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if (!isValid) {
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[self updateErrorLabelWithMessage:ORKLocalizedString(@"RANGE_ALERT_TITLE", nil)];
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return NO;
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}
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[self.textField resignFirstResponder];
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return YES;
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}
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- (void)textFieldDidEndEditing:(UITextField *)textField {
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NSString *text = self.textField.text;
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[self setAnswerWithText:text];
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}
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- (void)textFieldDidBeginEditing:(UITextField *)textField {
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if (_dontKnowButton && [_dontKnowButton active]) {
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[_dontKnowButton setActive:NO];
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}
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}
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@end
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