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| import React from 'react';
import CreateReactClass from 'create-react-class';
import PropTypes from 'prop-types';
import isTwelveHourTime from './lib/is-twelve-hour-time';
import replaceCharAt from './lib/replace-char-at';
import getGroupId from './lib/get-group-id';
import getGroups from './lib/get-groups';
import adder from './lib/time-string-adder';
import caret from './lib/caret';
import validate from './lib/validate';
const SILHOUETTE = '00:00:00:000 AM';
// isSeparator :: Char -> Bool
const isSeparator = char => /[:\s]/.test(char);
var TimeInput = CreateReactClass({
getInitialState() {
return {};
},
getDefaultProps() {
return {
value: '12:00 AM'
};
},
propTypes: {
className: PropTypes.string,
value: PropTypes.string,
onChange: PropTypes.func
},
render() {
var className = 'TimeInput';
if (this.props.className) {
className += ' ' + this.props.className;
}
return (
<div className={className}>
<input
className="TimeInput-input"
ref={input => {
this.input = input;
}}
type="text"
value={this.format(this.props.value)}
onChange={this.handleChange}
onBlur={this.handleBlur}
onKeyDown={this.handleKeyDown}
/>
</div>
);
},
format(val) {
if (isTwelveHourTime(val)) val = val.replace(/^00/, '12');
return val.toUpperCase();
},
componentDidMount() {
this.mounted = true;
},
componentWillUnmount() {
this.mounted = false;
},
componentDidUpdate() {
var index = this.state.caretIndex;
if (index || index === 0) caret.set(this.input, index);
},
handleBlur() {
Eif (this.mounted) this.setState({ caretIndex: null });
},
handleEscape() {
Eif (this.mounted) this.input.blur();
},
handleTab(event) {
var start = caret.start(this.input);
var value = this.props.value;
var groups = getGroups(value);
var groupId = getGroupId(start);
if (event.shiftKey) {
if (!groupId) return;
groupId--;
} else {
if (groupId >= groups.length - 1) return;
groupId++;
}
event.preventDefault();
var index = groupId * 3;
if (this.props.value.charAt(index) === ' ') index++;
Eif (this.mounted) this.setState({ caretIndex: index });
},
handleArrows(event) {
event.preventDefault();
var start = caret.start(this.input);
var value = this.props.value;
var amount = event.which === 38 ? 1 : -1;
if (event.shiftKey) {
amount *= 2;
if (event.metaKey) amount *= 2;
}
value = adder(value, getGroupId(start), amount);
this.onChange(value, start);
},
silhouette() {
return this.props.value.replace(/\d/g, (val, i) => SILHOUETTE.charAt(i));
},
handleBackspace(event) {
event.preventDefault();
var start = caret.start(this.input);
var value = this.props.value;
var end = caret.end(this.input);
Iif (!start && !end) return;
var diff = end - start;
var silhouette = this.silhouette();
if (!diff) {
if (value[start - 1] === ':') start--;
value = replaceCharAt(value, start - 1, silhouette.charAt(start - 1));
start--;
} else {
while (diff--) {
if (value[end - 1] !== ':') {
value = replaceCharAt(value, end - 1, silhouette.charAt(end - 1));
}
end--;
}
}
Iif (value.charAt(start - 1) === ':') start--;
this.onChange(value, start);
},
handleForwardSpace(event) {
event.preventDefault();
var start = caret.start(this.input);
var value = this.props.value;
var end = caret.end(this.input);
Iif ((start === end) === value.length - 1) return;
var diff = end - start;
var silhouette = this.silhouette();
if (!diff) {
if (value[start] === ':') start++;
value = replaceCharAt(value, start, silhouette.charAt(start));
start++;
} else {
while (diff--) {
Eif (value[end - 1] !== ':') {
value = replaceCharAt(value, start, silhouette.charAt(start));
}
start++;
}
}
Iif (value.charAt(start) === ':') start++;
this.onChange(value, start);
},
handleKeyDown(event) {
switch (event.which) {
case 9: // Tab
return this.handleTab(event);
case 8: // Backspace
return this.handleBackspace(event);
case 46: // Forward
return this.handleForwardSpace(event);
case 27: // Esc
return this.handleEscape(event);
case 38: // Left
case 40: // Right
return this.handleArrows(event);
default:
break;
}
},
handleChange(event) {
let value = this.props.value;
let newValue = this.input.value;
let diff = newValue.length - value.length;
let end = caret.start(this.input);
let insertion;
let start = end - Math.abs(diff);
event.preventDefault();
if (diff > 0) {
insertion = newValue.slice(end - diff, end);
while (diff--) {
let oldChar = value.charAt(start);
let newChar = insertion.charAt(0);
if (isSeparator(oldChar)) {
Iif (isSeparator(newChar)) {
insertion = insertion.slice(1);
start++;
} else {
start++;
diff++;
end++;
}
} else {
value = replaceCharAt(value, start, newChar);
insertion = insertion.slice(1);
start++;
}
}
newValue = value;
} else {
if (newValue.charAt(start) === ':') start++;
// apply default to selection
let result = value;
for (var i = start; i < end; i++) {
result = replaceCharAt(result, i, newValue.charAt(i));
}
newValue = result;
}
Eif (validate(newValue)) {
if (newValue.charAt(end) === ':') end++;
this.onChange(newValue, end);
} else {
var caretIndex = this.props.value.length - (newValue.length - end);
if (this.mounted) this.setState({ caretIndex: caretIndex });
}
},
onChange(str, caretIndex) {
if (this.props.onChange) this.props.onChange(this.format(str));
Eif (this.mounted && typeof caretIndex === 'number')
this.setState({ caretIndex: caretIndex });
}
});
export default TimeInput;
|