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Doric/doric-iOS/Pod/Classes/Shader/DoricInputNode.m

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/*
* Copyright [2019] [Doric.Pub]
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//
// DoricInputNode.m
// Doric
//
// Created by on 2019/12/11.
//
#import "DoricInputNode.h"
#import "DoricUtil.h"
#import "DoricPromise.h"
typedef void (^onTextChangeBlock)(NSString *text,DoricInputNode *node);
typedef void (^onFocusChangeBlock)(BOOL focused,DoricInputNode *node);
@interface DoricInputNode()<UITextViewDelegate>
@property(nonatomic, copy) onTextChangeBlock onTextChange;
@property(nonatomic, copy) onFocusChangeBlock onFocusShange;
@property(nonatomic, strong) UILabel *placeholderLabel;
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@property(nonatomic, strong) NSNumber *maxLength;
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@end
@implementation DoricInputNode
- (UITextView *)build {
UITextView *v = [[UITextView alloc] init];
v.delegate = self;
return v;
}
- (void)blendView:(UITextView *)view forPropName:(NSString *)name propValue:(id)prop {
if ([name isEqualToString:@"text"]) {
view.text = prop;
} else if ([name isEqualToString:@"textSize"]) {
view.font = [UIFont systemFontOfSize:[(NSNumber *) prop floatValue]];
} else if ([name isEqualToString:@"textColor"]) {
view.textColor = DoricColor(prop);
} else if ([name isEqualToString:@"textAlignment"]) {
DoricGravity gravity = (DoricGravity) [(NSNumber *) prop integerValue];
NSTextAlignment alignment = NSTextAlignmentCenter;
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if ((gravity & DoricGravityLeft) == DoricGravityLeft) {
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alignment = NSTextAlignmentLeft;
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} else if ((gravity & DoricGravityRight) == DoricGravityRight) {
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alignment = NSTextAlignmentRight;
}
view.textAlignment = alignment;
} else if ([name isEqualToString:@"multiline"]) {
BOOL mutilin = [(NSNumber *) prop boolValue];
if (!mutilin) {
view.textContainer.maximumNumberOfLines = 1;
}else {
view.textContainer.maximumNumberOfLines = 0;
}
} else if ([name isEqualToString:@"hintText"]) {
self.placeholderLabel.text = (NSString *)prop;
} else if ([name isEqualToString:@"hintTextColor"]) {
self.placeholderLabel.textColor = DoricColor(prop);
} else if ([name isEqualToString:@"onTextChange"]) {
if ([prop isKindOfClass:[NSString class]]) {
self.onTextChange = ^(NSString *text, DoricInputNode *node) {
[node callJSResponse:prop,text,nil];
};
}else {
self.onTextChange = nil;
}
} else if ([name isEqualToString:@"onFocusChange"]) {
if ([prop isKindOfClass:[NSString class]]) {
self.onFocusShange = ^(BOOL focused, DoricInputNode *node) {
[node callJSResponse:prop,@(focused),nil];
};
}else {
self.onFocusShange = nil;
}
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} else if ([name isEqualToString:@"maxLength"]) {
self.maxLength = prop;
} else {
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[super blendView:view forPropName:name propValue:prop];
}
}
- (void)blend:(NSDictionary *)props {
[super blend:props];
[self updatePlaceholderLabel];
[self.view.superview setNeedsLayout];
}
#pragma mark - Doric-JS api
- (NSString *)getText {
return self.view.text;
}
- (void)setSelection:(NSDictionary *)params withPromise:(DoricPromise *)promise {
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NSString *start = params[@"start"];
NSString *end = params[@"end"];
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if (([start isKindOfClass:[NSString class]] || [start isKindOfClass:[NSNumber class]]) &&
([start isKindOfClass:[NSString class]] || [start isKindOfClass:[NSNumber class]])) {
self.view.selectedRange = NSMakeRange(start.intValue, end.intValue - start.intValue);
}
[promise resolve:nil];
}
- (void)requestFocus {
[self.view becomeFirstResponder];
}
- (void)releaseFocus {
[self.view resignFirstResponder];
}
#pragma mark - UITextViewDelegate
- (BOOL)textViewShouldBeginEditing:(UITextView *)textView {
if (self.onFocusShange) {
self.onFocusShange(YES, self);
}
return YES;
}
- (BOOL)textViewShouldEndEditing:(UITextView *)textView {
if (self.onFocusShange) {
self.onFocusShange(NO, self);
}
return YES;
}
- (void)textViewDidChange:(UITextView *)textView {
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if (self.maxLength) {
if (textView.text.length > self.maxLength.unsignedIntValue) {
textView.text = [textView.text substringToIndex:self.maxLength.unsignedIntValue];
}
}
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if (self.onTextChange) {
self.onTextChange(textView.text, self);
}
[self updatePlaceholderLabel];
}
#pragma mark - placeholderLabel
- (UILabel *)placeholderLabel {
if (!_placeholderLabel) {
_placeholderLabel = [[UILabel alloc] init];
_placeholderLabel.numberOfLines = 0;
_placeholderLabel.userInteractionEnabled = NO;
}
return _placeholderLabel;
}
- (void)updatePlaceholderLabel {
if (self.view.text.length) {
[self.placeholderLabel removeFromSuperview];
return;
} else {
[self.view insertSubview:self.placeholderLabel atIndex:0];
}
self.placeholderLabel.textAlignment = self.view.textAlignment;
CGFloat lineFragmentPadding = self.view.textContainer.lineFragmentPadding;
UIEdgeInsets textContainerInset = self.view.textContainerInset;
CGFloat x = lineFragmentPadding + textContainerInset.left;
CGFloat y = textContainerInset.top;
CGFloat width = CGRectGetWidth(self.view.bounds) - x - lineFragmentPadding - textContainerInset.right;
CGFloat height = [self.placeholderLabel sizeThatFits:CGSizeMake(width, 0)].height;
self.placeholderLabel.frame = CGRectMake(x, y, width, height);
}
@end