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

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////////////////////////////////////////////////////////////////////////////
//
// 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;
if (items) {
return items.length > 0 && items.every((item) => item.done);
}
else {
return this.props.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();
}
}
}