/**
 * @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: "16.1.1", ngImport: i0, type: DefaultMatCalendarRangeStrategy, deps: [{ token: i1.DateAdapter }], target: i0.ɵɵFactoryTarget.Injectable }); }
    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.1.1", ngImport: i0, type: DefaultMatCalendarRangeStrategy }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.1.1", ngImport: i0, type: DefaultMatCalendarRangeStrategy, decorators: [{
            type: Injectable
        }], ctorParameters: function () { return [{ 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,
};
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"date-range-selection-strategy.js","sourceRoot":"","sources":["../../../../../../src/material/datepicker/date-range-selection-strategy.ts"],"names":[],"mappings":"AAAA;;;;;;GAMG;AAEH,OAAO,EAAC,UAAU,EAAE,cAAc,EAAE,QAAQ,EAAE,QAAQ,EAAkB,MAAM,eAAe,CAAC;AAC9F,OAAO,EAAC,WAAW,EAAC,MAAM,wBAAwB,CAAC;AACnD,OAAO,EAAC,SAAS,EAAC,MAAM,wBAAwB,CAAC;;;AAEjD,2EAA2E;AAC3E,MAAM,CAAC,MAAM,iCAAiC,GAAG,IAAI,cAAc,CAEjE,mCAAmC,CAAC,CAAC;AA2CvC,0DAA0D;AAE1D,MAAM,OAAO,+BAA+B;IAC1C,YAAoB,YAA4B;QAA5B,iBAAY,GAAZ,YAAY,CAAgB;IAAG,CAAC;IAEpD,iBAAiB,CAAC,IAAO,EAAE,YAA0B;QACnD,IAAI,EAAC,KAAK,EAAE,GAAG,EAAC,GAAG,YAAY,CAAC;QAEhC,IAAI,KAAK,IAAI,IAAI,EAAE;YACjB,KAAK,GAAG,IAAI,CAAC;SACd;aAAM,IAAI,GAAG,IAAI,IAAI,IAAI,IAAI,IAAI,IAAI,CAAC,YAAY,CAAC,WAAW,CAAC,IAAI,EAAE,KAAK,CAAC,IAAI,CAAC,EAAE;YACjF,GAAG,GAAG,IAAI,CAAC;SACZ;aAAM;YACL,KAAK,GAAG,IAAI,CAAC;YACb,GAAG,GAAG,IAAI,CAAC;SACZ;QAED,OAAO,IAAI,SAAS,CAAI,KAAK,EAAE,GAAG,CAAC,CAAC;IACtC,CAAC;IAED,aAAa,CAAC,UAAoB,EAAE,YAA0B;QAC5D,IAAI,KAAK,GAAa,IAAI,CAAC;QAC3B,IAAI,GAAG,GAAa,IAAI,CAAC;QAEzB,IAAI,YAAY,CAAC,KAAK,IAAI,CAAC,YAAY,CAAC,GAAG,IAAI,UAAU,EAAE;YACzD,KAAK,GAAG,YAAY,CAAC,KAAK,CAAC;YAC3B,GAAG,GAAG,UAAU,CAAC;SAClB;QAED,OAAO,IAAI,SAAS,CAAI,KAAK,EAAE,GAAG,CAAC,CAAC;IACtC,CAAC;IAED,UAAU,CAAC,UAAa,EAAE,aAA2B,EAAE,OAAU;QAC/D,IAAI,KAAK,GAAG,aAAa,CAAC,KAAK,CAAC;QAChC,IAAI,GAAG,GAAG,aAAa,CAAC,GAAG,CAAC;QAE5B,IAAI,CAAC,KAAK,IAAI,CAAC,GAAG,EAAE;YAClB,uCAAuC;YACvC,OAAO,IAAI,CAAC;SACb;QAED,MAAM,OAAO,GAAG,IAAI,CAAC,YAAY,CAAC;QAElC,MAAM,OAAO,GAAG,OAAO,CAAC,WAAW,CAAC,KAAK,EAAE,GAAG,CAAC,KAAK,CAAC,CAAC;QACtD,MAAM,SAAS,GAAG,OAAO,CAAC,OAAO,CAAC,OAAO,CAAC,GAAG,OAAO,CAAC,OAAO,CAAC,UAAU,CAAC,CAAC;QACzE,MAAM,UAAU,GAAG,OAAO,CAAC,QAAQ,CAAC,OAAO,CAAC,GAAG,OAAO,CAAC,QAAQ,CAAC,UAAU,CAAC,CAAC;QAC5E,MAAM,QAAQ,GAAG,OAAO,CAAC,OAAO,CAAC,OAAO,CAAC,GAAG,OAAO,CAAC,OAAO,CAAC,UAAU,CAAC,CAAC;QAExE,IAAI,OAAO,IAAI,OAAO,CAAC,QAAQ,CAAC,UAAU,EAAE,aAAa,CAAC,KAAK,CAAC,EAAE;YAChE,KAAK,GAAG,OAAO,CAAC;YAChB,IAAI,OAAO,CAAC,WAAW,CAAC,OAAO,EAAE,GAAG,CAAC,GAAG,CAAC,EAAE;gBACzC,GAAG,GAAG,OAAO,CAAC,gBAAgB,CAAC,GAAG,EAAE,SAAS,CAAC,CAAC;gBAC/C,GAAG,GAAG,OAAO,CAAC,iBAAiB,CAAC,GAAG,EAAE,UAAU,CAAC,CAAC;gBACjD,GAAG,GAAG,OAAO,CAAC,eAAe,CAAC,GAAG,EAAE,QAAQ,CAAC,CAAC;aAC9C;SACF;aAAM,IAAI,OAAO,IAAI,OAAO,CAAC,QAAQ,CAAC,UAAU,EAAE,aAAa,CAAC,GAAG,CAAC,EAAE;YACrE,GAAG,GAAG,OAAO,CAAC;YACd,IAAI,OAAO,CAAC,WAAW,CAAC,OAAO,EAAE,KAAK,CAAC,GAAG,CAAC,EAAE;gBAC3C,KAAK,GAAG,OAAO,CAAC,gBAAgB,CAAC,KAAK,EAAE,SAAS,CAAC,CAAC;gBACnD,KAAK,GAAG,OAAO,CAAC,iBAAiB,CAAC,KAAK,EAAE,UAAU,CAAC,CAAC;gBACrD,KAAK,GAAG,OAAO,CAAC,eAAe,CAAC,KAAK,EAAE,QAAQ,CAAC,CAAC;aAClD;SACF;aAAM;YACL,KAAK,GAAG,OAAO,CAAC,gBAAgB,CAAC,KAAK,EAAE,SAAS,CAAC,CAAC;YACnD,KAAK,GAAG,OAAO,CAAC,iBAAiB,CAAC,KAAK,EAAE,UAAU,CAAC,CAAC;YACrD,KAAK,GAAG,OAAO,CAAC,eAAe,CAAC,KAAK,EAAE,QAAQ,CAAC,CAAC;YACjD,GAAG,GAAG,OAAO,CAAC,gBAAgB,CAAC,GAAG,EAAE,SAAS,CAAC,CAAC;YAC/C,GAAG,GAAG,OAAO,CAAC,iBAAiB,CAAC,GAAG,EAAE,UAAU,CAAC,CAAC;YACjD,GAAG,GAAG,OAAO,CAAC,eAAe,CAAC,GAAG,EAAE,QAAQ,CAAC,CAAC;SAC9C;QAED,OAAO,IAAI,SAAS,CAAI,KAAK,EAAE,GAAG,CAAC,CAAC;IACtC,CAAC;8GAtEU,+BAA+B;kHAA/B,+BAA+B;;2FAA/B,+BAA+B;kBAD3C,UAAU;;AA0EX,oBAAoB;AACpB,MAAM,UAAU,4CAA4C,CAC1D,MAA8C,EAC9C,OAA6B;IAE7B,OAAO,MAAM,IAAI,IAAI,+BAA+B,CAAC,OAAO,CAAC,CAAC;AAChE,CAAC;AAED,oBAAoB;AACpB,MAAM,CAAC,MAAM,oCAAoC,GAAoB;IACnE,OAAO,EAAE,iCAAiC;IAC1C,IAAI,EAAE,CAAC,CAAC,IAAI,QAAQ,EAAE,EAAE,IAAI,QAAQ,EAAE,EAAE,iCAAiC,CAAC,EAAE,WAAW,CAAC;IACxF,UAAU,EAAE,4CAA4C;CACzD,CAAC","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {Injectable, InjectionToken, Optional, SkipSelf, FactoryProvider} from '@angular/core';\nimport {DateAdapter} from '@angular/material/core';\nimport {DateRange} from './date-selection-model';\n\n/** Injection token used to customize the date range selection behavior. */\nexport const MAT_DATE_RANGE_SELECTION_STRATEGY = new InjectionToken<\n  MatDateRangeSelectionStrategy<any>\n>('MAT_DATE_RANGE_SELECTION_STRATEGY');\n\n/** Object that can be provided in order to customize the date range selection behavior. */\nexport interface MatDateRangeSelectionStrategy<D> {\n  /**\n   * Called when the user has finished selecting a value.\n   * @param date Date that was selected. 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"]}