235 lines
8.4 KiB
Objective-C
235 lines
8.4 KiB
Objective-C
/*
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* Copyright [2019] [Doric.Pub]
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//
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// DoricInputNode.m
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// Doric
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//
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// Created by 姜腾 on 2019/12/11.
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//
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#import "DoricInputNode.h"
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#import "DoricUtil.h"
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#import "DoricPromise.h"
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typedef void (^onTextChangeBlock)(NSString *text,DoricInputNode *node);
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typedef void (^onFocusChangeBlock)(BOOL focused,DoricInputNode *node);
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@implementation DoricInputView
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- (instancetype)init {
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if (self = [super init]) {
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self.font = [UIFont systemFontOfSize:12];
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_placeholderLabel = [UILabel new];
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_placeholderLabel.numberOfLines = 0;
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_placeholderLabel.textColor = [UIColor grayColor];
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_placeholderLabel.userInteractionEnabled = NO;
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_placeholderLabel.font = self.font;
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[self insertSubview:_placeholderLabel atIndex:0];
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}
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return self;
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}
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- (void)layoutSubviews {
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[super layoutSubviews];
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self.placeholderLabel.hidden = self.text.length > 0;
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if (self.placeholderLabel.hidden) {
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return;
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}
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CGFloat lineFragmentPadding = self.textContainer.lineFragmentPadding;
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UIEdgeInsets textContainerInset = self.textContainerInset;
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self.placeholderLabel.x = lineFragmentPadding + textContainerInset.left;
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self.placeholderLabel.y = textContainerInset.top;
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self.placeholderLabel.width = self.width - lineFragmentPadding * 2 - textContainerInset.left - textContainerInset.right;
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[self.placeholderLabel sizeToFit];
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}
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- (CGSize)sizeThatFits:(CGSize)size {
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if (self.text.length > 0) {
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CGSize ret = [super sizeThatFits:size];
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return CGSizeMake(ret.width - self.doricLayout.paddingLeft - self.doricLayout.paddingRight, ret.height - self.doricLayout.paddingTop - self.doricLayout.paddingBottom);
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} else {
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CGSize ret = [self.placeholderLabel sizeThatFits:size];
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return CGSizeMake(ret.width, ret.height);
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}
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}
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@end
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@interface DoricInputNode()<UITextViewDelegate>
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@property(nonatomic, copy) onTextChangeBlock onTextChange;
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@property(nonatomic, copy) onFocusChangeBlock onFocusShange;
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@property(nonatomic, strong) NSNumber *maxLength;
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@end
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@implementation DoricInputNode
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- (DoricInputView *)build {
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DoricInputView *v = [[DoricInputView alloc] init];
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v.delegate = self;
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v.textContainer.lineFragmentPadding = 0;
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v.doricLayout.paddingTop = v.textContainerInset.top;
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v.doricLayout.paddingBottom = v.textContainerInset.bottom;
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v.doricLayout.paddingLeft = v.textContainerInset.left;
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v.doricLayout.paddingRight = v.textContainerInset.right;
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return v;
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}
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- (void)blendView:(DoricInputView *)view forPropName:(NSString *)name propValue:(id)prop {
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if ([name isEqualToString:@"text"]) {
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view.text = prop;
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} else if ([name isEqualToString:@"textSize"]) {
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view.font = [UIFont systemFontOfSize:[(NSNumber *) prop floatValue]];
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} else if ([name isEqualToString:@"textColor"]) {
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view.textColor = DoricColor(prop);
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} else if ([name isEqualToString:@"textAlignment"]) {
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DoricGravity gravity = (DoricGravity) [(NSNumber *) prop integerValue];
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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;
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}
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view.textAlignment = alignment;
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} else if ([name isEqualToString:@"multiline"]) {
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BOOL mutilin = [(NSNumber *) prop boolValue];
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if (!mutilin) {
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view.textContainer.maximumNumberOfLines = 1;
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}else {
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view.textContainer.maximumNumberOfLines = 0;
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}
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} else if ([name isEqualToString:@"hintText"]) {
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view.placeholderLabel.text = (NSString *)prop;
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} else if ([name isEqualToString:@"hintTextColor"]) {
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view.placeholderLabel.textColor = DoricColor(prop);
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} else if ([name isEqualToString:@"onTextChange"]) {
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if ([prop isKindOfClass:[NSString class]]) {
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self.onTextChange = ^(NSString *text, DoricInputNode *node) {
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[node callJSResponse:prop,text,nil];
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};
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}else {
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self.onTextChange = nil;
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}
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} else if ([name isEqualToString:@"onFocusChange"]) {
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if ([prop isKindOfClass:[NSString class]]) {
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self.onFocusShange = ^(BOOL focused, DoricInputNode *node) {
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[node callJSResponse:prop,@(focused),nil];
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};
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}else {
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self.onFocusShange = nil;
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}
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} else if ([name isEqualToString:@"maxLength"]) {
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self.maxLength = prop;
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} else {
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[super blendView:view forPropName:name propValue:prop];
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}
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}
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- (void)blend:(NSDictionary *)props {
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[super blend:props];
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}
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- (void)afterBlended:(NSDictionary *)props {
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[super afterBlended:props];
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if (self.view.doricLayout.paddingTop != self.view.textContainerInset.top
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|| self.view.doricLayout.paddingLeft != self.view.textContainerInset.left
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|| self.view.doricLayout.paddingBottom != self.view.textContainerInset.bottom
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|| self.view.doricLayout.paddingRight != self.view.textContainerInset.right) {
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self.view.textContainerInset = UIEdgeInsetsMake(self.view.doricLayout.paddingTop, self.view.doricLayout.paddingLeft, self.view.doricLayout.paddingBottom, self.view.doricLayout.paddingRight);
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}
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self.view.placeholderLabel.font = self.view.font;
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self.view.placeholderLabel.numberOfLines = self.view.textContainer.maximumNumberOfLines;
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}
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- (void)requestLayout {
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[super requestLayout];
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[self.view setNeedsLayout];
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}
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#pragma mark - Doric-JS api
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- (NSString *)getText {
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return self.view.text;
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}
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- (void)setSelection:(NSDictionary *)params withPromise:(DoricPromise *)promise {
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NSString *start = params[@"start"];
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NSString *end = params[@"end"];
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if (([start isKindOfClass:[NSString class]] || [start isKindOfClass:[NSNumber class]]) &&
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([start isKindOfClass:[NSString class]] || [start isKindOfClass:[NSNumber class]])) {
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self.view.selectedRange = NSMakeRange(start.intValue, end.intValue - start.intValue);
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}
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[promise resolve:nil];
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}
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- (void)requestFocus {
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[self.view becomeFirstResponder];
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}
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- (void)releaseFocus {
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[self.view resignFirstResponder];
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}
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#pragma mark - UITextViewDelegate
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- (BOOL)textViewShouldBeginEditing:(UITextView *)textView {
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if (self.onFocusShange) {
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self.onFocusShange(YES, self);
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}
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return YES;
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}
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- (BOOL)textViewShouldEndEditing:(UITextView *)textView {
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if (self.onFocusShange) {
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self.onFocusShange(NO, self);
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}
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return YES;
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}
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- (void)textViewDidChange:(UITextView *)textView {
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if (self.maxLength) {
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UITextRange *selectedRange = [textView markedTextRange];
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UITextPosition *pos = [textView positionFromPosition:selectedRange.start offset:0];
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if (!pos) {
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textView.text = [self limitToHansMaxLength:self.maxLength.unsignedIntValue text:textView.text];
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}
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}
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if (self.onTextChange) {
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self.onTextChange(textView.text, self);
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}
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[textView setNeedsLayout];
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}
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- (NSString *)limitToHansMaxLength:(NSUInteger)maxLen text:(NSString *)text{
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NSUInteger asciiMaxLen = 2 * maxLen;
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__block NSUInteger asciiLen = 0;
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__block NSUInteger subStringRangeLen = 0;
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[text enumerateSubstringsInRange:NSMakeRange(0, text.length)
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options:NSStringEnumerationByComposedCharacterSequences
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usingBlock:^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop) {
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if ([substring canBeConvertedToEncoding:NSASCIIStringEncoding]) {
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asciiLen += 2;
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} else {
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asciiLen += [substring lengthOfBytesUsingEncoding:NSUTF16StringEncoding];
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}
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if (asciiLen <= asciiMaxLen) {
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subStringRangeLen = substringRange.location + substringRange.length;
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} else {
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*stop = YES;
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}
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}];
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return [text substringWithRange:NSMakeRange(0, subStringRangeLen)];
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}
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@end
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