react-native/Libraries/Text/RCTTextFieldManager.m

127 lines
4.8 KiB
Objective-C

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import "RCTTextFieldManager.h"
#import "RCTBridge.h"
#import "RCTShadowView.h"
#import "RCTTextField.h"
#import "RCTFont.h"
@interface RCTTextFieldManager() <UITextFieldDelegate>
@end
@implementation RCTTextFieldManager
RCT_EXPORT_MODULE()
- (UIView *)view
{
RCTTextField *textField = [[RCTTextField alloc] initWithEventDispatcher:self.bridge.eventDispatcher];
textField.delegate = self;
return textField;
}
- (BOOL)textField:(RCTTextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
// Only allow single keypresses for onKeyPress, pasted text will not be sent.
if (textField.textWasPasted) {
textField.textWasPasted = NO;
} else {
[textField sendKeyValueForString:string];
}
if (textField.maxLength == nil || [string isEqualToString:@"\n"]) { // Make sure forms can be submitted via return
return YES;
}
NSUInteger allowedLength = textField.maxLength.integerValue - textField.text.length + range.length;
if (string.length > allowedLength) {
if (string.length > 1) {
// Truncate the input string so the result is exactly maxLength
NSString *limitedString = [string substringToIndex:allowedLength];
NSMutableString *newString = textField.text.mutableCopy;
[newString replaceCharactersInRange:range withString:limitedString];
textField.text = newString;
// Collapse selection at end of insert to match normal paste behavior
UITextPosition *insertEnd = [textField positionFromPosition:textField.beginningOfDocument
offset:(range.location + allowedLength)];
textField.selectedTextRange = [textField textRangeFromPosition:insertEnd toPosition:insertEnd];
[textField textFieldDidChange];
}
return NO;
} else {
return YES;
}
}
// This method allows us to detect a `Backspace` keyPress
// even when there is no more text in the TextField
- (BOOL)keyboardInputShouldDelete:(RCTTextField *)textField
{
[self textField:textField shouldChangeCharactersInRange:NSMakeRange(0, 0) replacementString:@""];
return YES;
}
- (BOOL)textFieldShouldEndEditing:(RCTTextField *)textField
{
return [textField textFieldShouldEndEditing:textField];
}
RCT_EXPORT_VIEW_PROPERTY(caretHidden, BOOL)
RCT_EXPORT_VIEW_PROPERTY(autoCorrect, BOOL)
RCT_REMAP_VIEW_PROPERTY(editable, enabled, BOOL)
RCT_EXPORT_VIEW_PROPERTY(placeholder, NSString)
RCT_EXPORT_VIEW_PROPERTY(placeholderTextColor, UIColor)
RCT_EXPORT_VIEW_PROPERTY(text, NSString)
RCT_EXPORT_VIEW_PROPERTY(maxLength, NSNumber)
RCT_EXPORT_VIEW_PROPERTY(clearButtonMode, UITextFieldViewMode)
RCT_REMAP_VIEW_PROPERTY(clearTextOnFocus, clearsOnBeginEditing, BOOL)
RCT_EXPORT_VIEW_PROPERTY(selectTextOnFocus, BOOL)
RCT_EXPORT_VIEW_PROPERTY(blurOnSubmit, BOOL)
RCT_EXPORT_VIEW_PROPERTY(keyboardType, UIKeyboardType)
RCT_EXPORT_VIEW_PROPERTY(keyboardAppearance, UIKeyboardAppearance)
RCT_EXPORT_VIEW_PROPERTY(onSelectionChange, RCTDirectEventBlock)
RCT_EXPORT_VIEW_PROPERTY(returnKeyType, UIReturnKeyType)
RCT_EXPORT_VIEW_PROPERTY(enablesReturnKeyAutomatically, BOOL)
RCT_EXPORT_VIEW_PROPERTY(secureTextEntry, BOOL)
RCT_REMAP_VIEW_PROPERTY(password, secureTextEntry, BOOL) // backwards compatibility
RCT_REMAP_VIEW_PROPERTY(color, textColor, UIColor)
RCT_REMAP_VIEW_PROPERTY(autoCapitalize, autocapitalizationType, UITextAutocapitalizationType)
RCT_REMAP_VIEW_PROPERTY(textAlign, textAlignment, NSTextAlignment)
RCT_REMAP_VIEW_PROPERTY(selectionColor, tintColor, UIColor)
RCT_CUSTOM_VIEW_PROPERTY(fontSize, NSNumber, RCTTextField)
{
view.font = [RCTFont updateFont:view.font withSize:json ?: @(defaultView.font.pointSize)];
}
RCT_CUSTOM_VIEW_PROPERTY(fontWeight, NSString, __unused RCTTextField)
{
view.font = [RCTFont updateFont:view.font withWeight:json]; // defaults to normal
}
RCT_CUSTOM_VIEW_PROPERTY(fontStyle, NSString, __unused RCTTextField)
{
view.font = [RCTFont updateFont:view.font withStyle:json]; // defaults to normal
}
RCT_CUSTOM_VIEW_PROPERTY(fontFamily, NSString, RCTTextField)
{
view.font = [RCTFont updateFont:view.font withFamily:json ?: defaultView.font.familyName];
}
RCT_EXPORT_VIEW_PROPERTY(mostRecentEventCount, NSInteger)
- (RCTViewManagerUIBlock)uiBlockToAmendWithShadowView:(RCTShadowView *)shadowView
{
NSNumber *reactTag = shadowView.reactTag;
UIEdgeInsets padding = shadowView.paddingAsInsets;
return ^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, RCTTextField *> *viewRegistry) {
viewRegistry[reactTag].contentInset = padding;
};
}
@end