realm-js/examples/ReactExample/components/todo-list-item.js

141 lines
3.6 KiB
JavaScript
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

////////////////////////////////////////////////////////////////////////////
//
// Copyright 2016 Realm Inc.
//
// 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.
//
////////////////////////////////////////////////////////////////////////////
'use strict';
import React from 'react';
import {
Platform,
Text,
TextInput,
TouchableWithoutFeedback,
View,
} from 'react-native';
import realm from './realm';
import styles from './styles';
const iOS = (Platform.OS == 'ios');
export default class TodoListItem extends React.Component {
constructor(props) {
super(props);
this._onChangeText = this._onChangeText.bind(this);
}
get done() {
let items = this.props.item.items;
return items.length > 0 && items.every((item) => item.done);
}
get text() {
return this.props.item.name;
}
set text(text) {
this.props.item.name = text;
}
componentDidMount() {
// The autoFocus prop on TextInput was not working for us :(
this._focusInputIfNecessary();
}
componentDidUpdate() {
this._focusInputIfNecessary();
}
render() {
return (
<View style={styles.listItem}>
{this.renderLeftSide()}
{this.renderText()}
{this.renderRightSide()}
</View>
);
}
renderLeftSide() {
return (
<View style={styles.listItemLeftSide}>
<Text>{this.done ? '✓' : ''}</Text>
</View>
);
}
renderRightSide() {
// Only show the delete button while not editing the text.
return this.props.editing ? null : this.renderDelete();
}
renderText(extraStyle) {
if (this.props.editing) {
return (
<TextInput
ref="input"
value={this.text}
placeholder="Todo…"
style={[styles.listItemInput, extraStyle]}
onChangeText={this._onChangeText}
onEndEditing={this.props.onEndEditing}
enablesReturnKeyAutomatically={true} />
);
} else {
return (
<Text
style={[styles.listItemText, extraStyle]}
onPress={this.props.onPress}
suppressHighlighting={true}>
{this.text}
</Text>
);
}
}
renderDelete() {
return (
<TouchableWithoutFeedback onPress={this.props.onPressDelete}>
<View style={styles.listItemDelete}>
<Text>{iOS ? '𐄂' : '×'}</Text>
</View>
</TouchableWithoutFeedback>
);
}
_onChangeText(text) {
realm.write(() => {
this.text = text;
});
this.forceUpdate();
}
_focusInputIfNecessary() {
if (!this.props.editing) {
return;
}
let input = this.refs.input;
if (!input.isFocused()) {
input.focus();
}
}
}