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import React, { Component, PropTypes } from 'react'; | ||
import { getClassNamesWithMods, getDataAttributes, normalizeDate } from '../_helpers'; | ||
import DaysPanel from './panels/days'; | ||
import calendarConstants from './constants/calendar'; | ||
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const { | ||
CALENDAR_MOVE_TO_NEXT, | ||
CALENDAR_MOVE_TO_PREVIOUS, | ||
CALENDAR_SELECTION_TYPE_RANGE, | ||
} = calendarConstants; | ||
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/** | ||
* Processes the given props and the existing state and returns | ||
* a new state. | ||
* | ||
* @function processProps | ||
* @param {Object} props Props to base the new state on. | ||
* @param {Object} state (Existing) state to be based on for the existing values. | ||
* @return {Object} New state to be set/used. | ||
* @static | ||
*/ | ||
function processProps(props) { | ||
const { initialDates, maxDate, minDate, selectionType } = props; | ||
const maxLimit = maxDate ? normalizeDate(new Date(maxDate), 23, 59, 59, 999) : null; | ||
const renderDate = normalizeDate(((initialDates && initialDates.length && initialDates[0]) | ||
? new Date(initialDates[0]) | ||
: new Date())); | ||
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let minLimit = minDate ? normalizeDate(new Date(minDate)) : null; | ||
let selectedDates = [null, null]; | ||
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if (initialDates) { | ||
selectedDates = selectedDates.map((item, idx) => { | ||
if (!initialDates[idx]) { | ||
return null; | ||
} | ||
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return normalizeDate(new Date(initialDates[idx])); | ||
}); | ||
} | ||
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/** | ||
* If a minDate or a maxDate is set, let's check if any selectedDates are outside of the boundaries. | ||
* If so, resets the selectedDates. | ||
*/ | ||
if (minLimit || maxLimit) { | ||
const isAnyDateOutOfLimit = selectedDates.some(item => ( | ||
item && ( | ||
(minLimit && (minLimit.getTime() > item.getTime())) || | ||
(maxLimit && (maxLimit.getTime() < item.getTime())) | ||
) | ||
)); | ||
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if (isAnyDateOutOfLimit) { | ||
selectedDates = [null, null]; | ||
console.warn(`A calendar instance contains a selectedDate outside of the minDate and maxDate boundaries`); // eslint-disable-line | ||
} | ||
} | ||
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/** If initialDates is defined and we have a start date, we want to set it as the minLimit */ | ||
if (selectedDates[0] && (selectionType === CALENDAR_SELECTION_TYPE_RANGE)) { | ||
minLimit = selectedDates[0]; | ||
} | ||
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return { | ||
maxLimit, | ||
minLimit, | ||
renderDate, | ||
selectedDates, | ||
}; | ||
} | ||
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export default class Calendar extends Component { | ||
constructor(props) { | ||
super(); | ||
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this.moveToMonth = this.moveToMonth.bind(this); | ||
this.state = processProps(props); | ||
} | ||
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componentWillReceiveProps(newProps) { | ||
const { initialDates, maxDate, minDate, selectionType } = newProps; | ||
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let propsChanged = ( | ||
(maxDate !== this.props.maxDate) || | ||
(minDate !== this.props.minDate) || | ||
(selectionType !== this.props.selectionType) | ||
); | ||
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if (initialDates) { | ||
if (this.props.initialDates) { | ||
propsChanged = propsChanged || initialDates.some((item, idx) => item !== this.props.initialDates[idx]); | ||
} else { | ||
propsChanged = true; | ||
} | ||
} | ||
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if (propsChanged) { | ||
this.setState(() => processProps(newProps)); | ||
} | ||
} | ||
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/** | ||
* Changes the renderDate of the calendar to the previous or next month. | ||
* Also triggers the onNavPreviousMonth/onNavNextMonth when the state gets changed | ||
* and passes the new date to it. | ||
* | ||
* @method moveToMonth | ||
* @param {String} direction Defines to which month is the calendar moving (previous or next). | ||
*/ | ||
moveToMonth(direction) { | ||
const { onNavNextMonth, onNavPreviousMonth } = this.props; | ||
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this.setState(({ renderDate }) => { | ||
renderDate.setMonth(renderDate.getMonth() + (direction === CALENDAR_MOVE_TO_PREVIOUS ? -1 : 1)); | ||
return { renderDate }; | ||
}, () => { | ||
if ((direction === CALENDAR_MOVE_TO_PREVIOUS) && onNavPreviousMonth) { | ||
onNavPreviousMonth(this.state.renderDate); | ||
} else if ((direction === CALENDAR_MOVE_TO_NEXT) && onNavNextMonth) { | ||
onNavNextMonth(this.state.renderDate); | ||
} | ||
}); | ||
} | ||
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/** | ||
* Handler for the day's selection. Passed to the DaysPanel -> DaysView. | ||
* Also triggers the onSelectDay function (when passed) after the state is updated, | ||
* passing the selectedDates array to it. | ||
* | ||
* @method onSelectDay | ||
* @param {Date} dateSelected Date selected by the user. | ||
*/ | ||
onSelectDay(dateSelected) { | ||
const { onSelectDay, selectionType, minDate } = this.props; | ||
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this.setState((prevState) => { | ||
let { minLimit, renderDate, selectedDates } = prevState; | ||
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/** | ||
* If the calendar's selectionType is 'normal', we always set the date selected | ||
* to the first position of the selectedDates array. | ||
* If the selectionType is 'range', we need to verify the following requirements: | ||
* | ||
* - If there's no start date selected, then the selected date becomes the start | ||
* date and the minLimit becomes that same date. Prevents the range selection to the past. | ||
* | ||
* - If there's a start date already selected: | ||
* | ||
* - If there's no end date selected, then the selected date becomes the end date. Also | ||
* if the start and end dates are the same, it will remove the minLimit as the layout renders | ||
* them as a 'normal' selection. | ||
* | ||
* - If there's an end date selected and the user is clicking on the start date again, it | ||
* clears the selections and the limits, resetting the range. | ||
*/ | ||
if (selectionType === CALENDAR_SELECTION_TYPE_RANGE) { | ||
if (selectedDates[0]) { | ||
if (!selectedDates[1]) { | ||
selectedDates[1] = dateSelected; | ||
if (selectedDates[0].toDateString() === selectedDates[1].toDateString()) { | ||
minLimit = minDate ? normalizeDate(new Date(minDate)) : null; | ||
} | ||
} else { | ||
selectedDates = [null, null]; | ||
minLimit = minDate ? normalizeDate(new Date(minDate)) : null; | ||
} | ||
} else { | ||
selectedDates[0] = dateSelected; | ||
minLimit = dateSelected; | ||
selectedDates[1] = null; | ||
} | ||
} else { | ||
selectedDates[0] = dateSelected; | ||
} | ||
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/** | ||
* If the user selects a day of the previous or next month, the rendered month switches to | ||
* the one of the selected date. | ||
*/ | ||
if (dateSelected.getMonth() !== renderDate.getMonth()) { | ||
renderDate = new Date(dateSelected.toDateString()); | ||
} | ||
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return { | ||
minLimit, | ||
renderDate, | ||
selectedDates, | ||
}; | ||
}, () => { | ||
if (onSelectDay) { | ||
onSelectDay(this.state.selectedDates); | ||
} | ||
}); | ||
} | ||
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render() { | ||
const { dataAttrs = {}, isDaySelectableFn, locale, mods = [], navButtons, selectionType } = this.props; | ||
const { maxLimit, minLimit, renderDate, selectedDates } = this.state; | ||
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const restProps = getDataAttributes(dataAttrs); | ||
const className = getClassNamesWithMods('ui-calendar', mods); | ||
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return ( | ||
<div className={className} {...restProps}> | ||
<DaysPanel | ||
isDaySelectableFn={isDaySelectableFn} | ||
locale={locale} | ||
maxDate={maxLimit} | ||
minDate={minLimit} | ||
navButtons={navButtons} | ||
onNavNextMonth={() => this.moveToMonth(CALENDAR_MOVE_TO_NEXT)} | ||
onNavPreviousMonth={() => this.moveToMonth(CALENDAR_MOVE_TO_PREVIOUS)} | ||
onSelectDay={dt => this.onSelectDay(dt)} | ||
renderDate={renderDate} | ||
selectedDates={selectedDates} | ||
selectionType={selectionType} | ||
/> | ||
</div> | ||
); | ||
} | ||
} | ||
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Calendar.defaultProps = { | ||
selectionType: 'normal', | ||
}; | ||
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Calendar.propTypes = { | ||
/** | ||
* Data attribute. You can use it to set up GTM key or any custom data-* attribute | ||
*/ | ||
dataAttrs: PropTypes.oneOfType([ | ||
PropTypes.bool, | ||
PropTypes.object, | ||
]), | ||
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/** | ||
* Optional. Initial value of the calendar. Defaults to the current date as per the locale. | ||
*/ | ||
initialDates: PropTypes.array, | ||
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/** | ||
* Optional. Function to be triggered to evaluate if the date (passed as an argument) | ||
* is selectable. Must return a boolean. | ||
*/ | ||
isDaySelectableFn: PropTypes.func, | ||
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/** | ||
* Locale definitions, with the calendar's months and weekdays in the right language. | ||
* Also contains the startWeekDay which defines in which week day starts the week. | ||
*/ | ||
locale: PropTypes.shape({ | ||
months: PropTypes.array, | ||
weekDays: PropTypes.array, | ||
startWeekDay: PropTypes.number, | ||
}), | ||
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/** | ||
* Sets the max date boundary. Defaults to `null`. | ||
*/ | ||
maxDate: PropTypes.string, | ||
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/** | ||
* Sets the min date boundary. Defaults to `null`. | ||
*/ | ||
minDate: PropTypes.string, | ||
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/** | ||
* You can provide set of custom modifications. | ||
*/ | ||
mods: PropTypes.arrayOf(PropTypes.string), | ||
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navButtons: PropTypes.shape({ | ||
days: PropTypes.shape({ | ||
next: PropTypes.shape({ | ||
ariaLabel: PropTypes.string, | ||
displayValue: PropTypes.string, | ||
}), | ||
previous: PropTypes.shape({ | ||
ariaLabel: PropTypes.string, | ||
displayValue: PropTypes.string, | ||
}), | ||
}), | ||
}), | ||
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/** | ||
* Function to be triggered when pressing the nav's "next" button. | ||
*/ | ||
onNavNextMonth: PropTypes.func, | ||
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/** | ||
* Function to be triggered when pressing the nav's "previous" button. | ||
*/ | ||
onNavPreviousMonth: PropTypes.func, | ||
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/** | ||
* Function to be triggered when selecting a day. | ||
*/ | ||
onSelectDay: PropTypes.func, | ||
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/** | ||
* Optional. Type of date selection. | ||
*/ | ||
selectionType: PropTypes.oneOf(['normal', 'range']), | ||
}; |
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Original file line number | Diff line number | Diff line change |
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Basic calendar: | ||
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<div> | ||
<Calendar | ||
initialDates={["2017-03-21","2017-03-29"]} | ||
onSelectDay={dts => document.getElementById('calendar-output').value = dts} | ||
selectionType="range" | ||
/><br /> | ||
<output id="calendar-output">Please select a date!</output><br /> | ||
</div> |
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