@blueprintjs/datetime
Version:
Components for interacting with dates and times
154 lines • 7.37 kB
JavaScript
/*
* Copyright 2016 Palantir Technologies, Inc. All rights reserved.
*
* 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.
*/
import { Boundary } from "@blueprintjs/core";
import { areSameDay } from "./common/dateUtils";
/* eslint-disable-next-line @typescript-eslint/no-extraneous-class */
var DateRangeSelectionStrategy = /** @class */ (function () {
function DateRangeSelectionStrategy() {
}
/**
* Returns the new date-range and the boundary that would be affected if `day` were clicked. The
* affected boundary may be different from the provided `boundary` in some cases. For example,
* clicking a particular boundary's selected date will always deselect it regardless of which
* `boundary` you provide to this function (because it's simply a more intuitive interaction).
*/
DateRangeSelectionStrategy.getNextState = function (currentRange, day, allowSingleDayRange, boundary) {
if (boundary != null) {
return this.getNextStateForBoundary(currentRange, day, allowSingleDayRange, boundary);
}
else {
return this.getDefaultNextState(currentRange, day, allowSingleDayRange);
}
};
DateRangeSelectionStrategy.getNextStateForBoundary = function (currentRange, day, allowSingleDayRange, boundary) {
var boundaryDate = this.getBoundaryDate(boundary, currentRange);
var otherBoundary = this.getOtherBoundary(boundary);
var otherBoundaryDate = this.getBoundaryDate(otherBoundary, currentRange);
var nextBoundary;
var nextDateRange;
if (boundaryDate == null && otherBoundaryDate == null) {
nextBoundary = boundary;
nextDateRange = this.createRangeForBoundary(boundary, day, null);
}
else if (boundaryDate != null && otherBoundaryDate == null) {
var nextBoundaryDate = areSameDay(boundaryDate, day) ? null : day;
nextBoundary = boundary;
nextDateRange = this.createRangeForBoundary(boundary, nextBoundaryDate, null);
}
else if (boundaryDate == null && otherBoundaryDate != null) {
if (areSameDay(day, otherBoundaryDate)) {
var nextDate = void 0;
if (allowSingleDayRange) {
nextBoundary = boundary;
nextDate = otherBoundaryDate;
}
else {
nextBoundary = otherBoundary;
nextDate = null;
}
nextDateRange = this.createRangeForBoundary(boundary, nextDate, nextDate);
}
else if (this.isOverlappingOtherBoundary(boundary, day, otherBoundaryDate)) {
nextBoundary = otherBoundary;
nextDateRange = this.createRangeForBoundary(boundary, otherBoundaryDate, day);
}
else {
nextBoundary = boundary;
nextDateRange = this.createRangeForBoundary(boundary, day, otherBoundaryDate);
}
}
else {
// both boundaryDate and otherBoundaryDate are already defined
if (areSameDay(boundaryDate, day)) {
var isSingleDayRangeSelected = areSameDay(boundaryDate, otherBoundaryDate);
var nextOtherBoundaryDate = isSingleDayRangeSelected ? null : otherBoundaryDate;
nextBoundary = boundary;
nextDateRange = this.createRangeForBoundary(boundary, null, nextOtherBoundaryDate);
}
else if (areSameDay(day, otherBoundaryDate)) {
var _a = allowSingleDayRange
? [otherBoundaryDate, otherBoundaryDate]
: [boundaryDate, null], nextBoundaryDate = _a[0], nextOtherBoundaryDate = _a[1];
nextBoundary = allowSingleDayRange ? boundary : otherBoundary;
nextDateRange = this.createRangeForBoundary(boundary, nextBoundaryDate, nextOtherBoundaryDate);
}
else if (this.isOverlappingOtherBoundary(boundary, day, otherBoundaryDate)) {
nextBoundary = boundary;
nextDateRange = this.createRangeForBoundary(boundary, day, null);
}
else {
// extend the date range with an earlier boundaryDate date
nextBoundary = boundary;
nextDateRange = this.createRangeForBoundary(boundary, day, otherBoundaryDate);
}
}
return { dateRange: nextDateRange, boundary: nextBoundary };
};
DateRangeSelectionStrategy.getDefaultNextState = function (selectedRange, day, allowSingleDayRange) {
var start = selectedRange[0], end = selectedRange[1];
var nextDateRange;
if (start == null && end == null) {
nextDateRange = [day, null];
}
else if (start != null && end == null) {
nextDateRange = this.createRange(day, start, allowSingleDayRange);
}
else if (start == null && end != null) {
nextDateRange = this.createRange(day, end, allowSingleDayRange);
}
else {
var isStart = areSameDay(start, day);
var isEnd = areSameDay(end, day);
if (isStart && isEnd) {
nextDateRange = [null, null];
}
else if (isStart) {
nextDateRange = [null, end];
}
else if (isEnd) {
nextDateRange = [start, null];
}
else {
nextDateRange = [day, null];
}
}
return { dateRange: nextDateRange };
};
DateRangeSelectionStrategy.getOtherBoundary = function (boundary) {
return boundary === Boundary.START ? Boundary.END : Boundary.START;
};
DateRangeSelectionStrategy.getBoundaryDate = function (boundary, dateRange) {
return boundary === Boundary.START ? dateRange[0] : dateRange[1];
};
DateRangeSelectionStrategy.isOverlappingOtherBoundary = function (boundary, boundaryDate, otherBoundaryDate) {
return boundary === Boundary.START ? boundaryDate > otherBoundaryDate : boundaryDate < otherBoundaryDate;
};
DateRangeSelectionStrategy.createRangeForBoundary = function (boundary, boundaryDate, otherBoundaryDate) {
return boundary === Boundary.START
? [boundaryDate, otherBoundaryDate]
: [otherBoundaryDate, boundaryDate];
};
DateRangeSelectionStrategy.createRange = function (a, b, allowSingleDayRange) {
// clicking the same date again will clear it
if (!allowSingleDayRange && areSameDay(a, b)) {
return [null, null];
}
return a < b ? [a, b] : [b, a];
};
return DateRangeSelectionStrategy;
}());
export { DateRangeSelectionStrategy };
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