@angular/material
Version:
Angular Material
97 lines • 16.8 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { Injectable, InjectionToken, Optional, SkipSelf } from '@angular/core';
import { DateAdapter } from '@angular/material/core';
import { DateRange } from './date-selection-model';
import * as i0 from "@angular/core";
import * as i1 from "@angular/material/core";
/** Injection token used to customize the date range selection behavior. */
export const MAT_DATE_RANGE_SELECTION_STRATEGY = new InjectionToken('MAT_DATE_RANGE_SELECTION_STRATEGY');
/** Provides the default date range selection behavior. */
export class DefaultMatCalendarRangeStrategy {
constructor(_dateAdapter) {
this._dateAdapter = _dateAdapter;
}
selectionFinished(date, currentRange) {
let { start, end } = currentRange;
if (start == null) {
start = date;
}
else if (end == null && date && this._dateAdapter.compareDate(date, start) >= 0) {
end = date;
}
else {
start = date;
end = null;
}
return new DateRange(start, end);
}
createPreview(activeDate, currentRange) {
let start = null;
let end = null;
if (currentRange.start && !currentRange.end && activeDate) {
start = currentRange.start;
end = activeDate;
}
return new DateRange(start, end);
}
createDrag(dragOrigin, originalRange, newDate) {
let start = originalRange.start;
let end = originalRange.end;
if (!start || !end) {
// Can't drag from an incomplete range.
return null;
}
const adapter = this._dateAdapter;
const isRange = adapter.compareDate(start, end) !== 0;
const diffYears = adapter.getYear(newDate) - adapter.getYear(dragOrigin);
const diffMonths = adapter.getMonth(newDate) - adapter.getMonth(dragOrigin);
const diffDays = adapter.getDate(newDate) - adapter.getDate(dragOrigin);
if (isRange && adapter.sameDate(dragOrigin, originalRange.start)) {
start = newDate;
if (adapter.compareDate(newDate, end) > 0) {
end = adapter.addCalendarYears(end, diffYears);
end = adapter.addCalendarMonths(end, diffMonths);
end = adapter.addCalendarDays(end, diffDays);
}
}
else if (isRange && adapter.sameDate(dragOrigin, originalRange.end)) {
end = newDate;
if (adapter.compareDate(newDate, start) < 0) {
start = adapter.addCalendarYears(start, diffYears);
start = adapter.addCalendarMonths(start, diffMonths);
start = adapter.addCalendarDays(start, diffDays);
}
}
else {
start = adapter.addCalendarYears(start, diffYears);
start = adapter.addCalendarMonths(start, diffMonths);
start = adapter.addCalendarDays(start, diffDays);
end = adapter.addCalendarYears(end, diffYears);
end = adapter.addCalendarMonths(end, diffMonths);
end = adapter.addCalendarDays(end, diffDays);
}
return new DateRange(start, end);
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.0.0", ngImport: i0, type: DefaultMatCalendarRangeStrategy, deps: [{ token: i1.DateAdapter }], target: i0.ɵɵFactoryTarget.Injectable }); }
static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "18.0.0", ngImport: i0, type: DefaultMatCalendarRangeStrategy }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.0.0", ngImport: i0, type: DefaultMatCalendarRangeStrategy, decorators: [{
type: Injectable
}], ctorParameters: () => [{ type: i1.DateAdapter }] });
/** @docs-private */
export function MAT_CALENDAR_RANGE_STRATEGY_PROVIDER_FACTORY(parent, adapter) {
return parent || new DefaultMatCalendarRangeStrategy(adapter);
}
/** @docs-private */
export const MAT_CALENDAR_RANGE_STRATEGY_PROVIDER = {
provide: MAT_DATE_RANGE_SELECTION_STRATEGY,
deps: [[new Optional(), new SkipSelf(), MAT_DATE_RANGE_SELECTION_STRATEGY], DateAdapter],
useFactory: MAT_CALENDAR_RANGE_STRATEGY_PROVIDER_FACTORY,
};
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Will be null if the user cleared the selection.\n   * @param currentRange Range that is currently show in the calendar.\n   * @param event DOM event that triggered the selection. Currently only corresponds to a `click`\n   *    event, but it may get expanded in the future.\n   */\n  selectionFinished(date: D | null, currentRange: DateRange<D>, event: Event): DateRange<D>;\n\n  /**\n   * Called when the user has activated a new date (e.g. by hovering over\n   * it or moving focus) and the calendar tries to display a date range.\n   *\n   * @param activeDate Date that the user has activated. Will be null if the user moved\n   *    focus to an element that's no a calendar cell.\n   * @param currentRange Range that is currently shown in the calendar.\n   * @param event DOM event that caused the preview to be changed. Will be either a\n   *    `mouseenter`/`mouseleave` or `focus`/`blur` depending on how the user is navigating.\n   */\n  createPreview(activeDate: D | null, currentRange: DateRange<D>, event: Event): DateRange<D>;\n\n  /**\n   * Called when the user has dragged a date in the currently selected range to another\n   * date. Returns the date updated range that should result from this interaction.\n   *\n   * @param dateOrigin The date the user started dragging from.\n   * @param originalRange The originally selected date range.\n   * @param newDate The currently targeted date in the drag operation.\n   * @param event DOM event that triggered the updated drag state. Will be\n   *     `mouseenter`/`mouseup` or `touchmove`/`touchend` depending on the device type.\n   */\n  createDrag?(\n    dragOrigin: D,\n    originalRange: DateRange<D>,\n    newDate: D,\n    event: Event,\n  ): DateRange<D> | null;\n}\n\n/** Provides the default date range selection behavior. */\n@Injectable()\nexport class DefaultMatCalendarRangeStrategy<D> implements MatDateRangeSelectionStrategy<D> {\n  constructor(private _dateAdapter: DateAdapter<D>) {}\n\n  selectionFinished(date: D, currentRange: DateRange<D>) {\n    let {start, end} = currentRange;\n\n    if (start == null) {\n      start = date;\n    } else if (end == null && date && this._dateAdapter.compareDate(date, start) >= 0) {\n      end = date;\n    } else {\n      start = date;\n      end = null;\n    }\n\n    return new DateRange<D>(start, end);\n  }\n\n  createPreview(activeDate: D | null, currentRange: DateRange<D>) {\n    let start: D | null = null;\n    let end: D | null = null;\n\n    if (currentRange.start && !currentRange.end && activeDate) {\n      start = currentRange.start;\n      end = activeDate;\n    }\n\n    return new DateRange<D>(start, end);\n  }\n\n  createDrag(dragOrigin: D, originalRange: DateRange<D>, newDate: D) {\n    let start = originalRange.start;\n    let end = originalRange.end;\n\n    if (!start || !end) {\n      // Can't drag from an incomplete range.\n      return null;\n    }\n\n    const adapter = this._dateAdapter;\n\n    const isRange = adapter.compareDate(start, end) !== 0;\n    const diffYears = adapter.getYear(newDate) - adapter.getYear(dragOrigin);\n    const diffMonths = adapter.getMonth(newDate) - adapter.getMonth(dragOrigin);\n    const diffDays = adapter.getDate(newDate) - adapter.getDate(dragOrigin);\n\n    if (isRange && adapter.sameDate(dragOrigin, originalRange.start)) {\n      start = newDate;\n      if (adapter.compareDate(newDate, end) > 0) {\n        end = adapter.addCalendarYears(end, diffYears);\n        end = adapter.addCalendarMonths(end, diffMonths);\n        end = adapter.addCalendarDays(end, diffDays);\n      }\n    } else if (isRange && adapter.sameDate(dragOrigin, originalRange.end)) {\n      end = newDate;\n      if (adapter.compareDate(newDate, start) < 0) {\n        start = adapter.addCalendarYears(start, diffYears);\n        start = adapter.addCalendarMonths(start, diffMonths);\n        start = adapter.addCalendarDays(start, diffDays);\n      }\n    } else {\n      start = adapter.addCalendarYears(start, diffYears);\n      start = adapter.addCalendarMonths(start, diffMonths);\n      start = adapter.addCalendarDays(start, diffDays);\n      end = adapter.addCalendarYears(end, diffYears);\n      end = adapter.addCalendarMonths(end, diffMonths);\n      end = adapter.addCalendarDays(end, diffDays);\n    }\n\n    return new DateRange<D>(start, end);\n  }\n}\n\n/** @docs-private */\nexport function MAT_CALENDAR_RANGE_STRATEGY_PROVIDER_FACTORY(\n  parent: MatDateRangeSelectionStrategy<unknown>,\n  adapter: DateAdapter<unknown>,\n) {\n  return parent || new DefaultMatCalendarRangeStrategy(adapter);\n}\n\n/** @docs-private */\nexport const MAT_CALENDAR_RANGE_STRATEGY_PROVIDER: FactoryProvider = {\n  provide: MAT_DATE_RANGE_SELECTION_STRATEGY,\n  deps: [[new Optional(), new SkipSelf(), MAT_DATE_RANGE_SELECTION_STRATEGY], DateAdapter],\n  useFactory: MAT_CALENDAR_RANGE_STRATEGY_PROVIDER_FACTORY,\n};\n"]}