feat(DlDateAdapterString): add support for string date in model

Also updated docs and simplified release configuration in package.json

Fixes #412

src/lib/dl-date-time-picker/dl-date-adapter-string.ts

@@ -0,0 +1,72 @@
+import {DlDateAdapter} from './dl-date-adapter';
+import * as _moment from 'moment';
+import {Inject, InjectionToken} from '@angular/core';
+
+/**
+ * Work around for moment namespace conflict when used with webpack and rollup.
+ * See https://github.com/dherges/ng-packagr/issues/163
+ *
+ * Depending on whether rollup is used, moment needs to be imported differently.
+ * Since Moment.js doesn't have a default export, we normally need to import using
+ * the `* as`syntax.
+ *
+ * rollup creates a synthetic default module and we thus need to import it using
+ * the `default as` syntax.
+ *
+ * @internal
+ *
+ **/
+const moment = _moment;
+
+
+/**
+ * InjectionToken for string dates that can be used to override default output format.
+ **/
+export const DL_STRING_DATE_OUTPUT_FORMAT = new InjectionToken<string>('DL_STRING_DATE_OUTPUT_FORMAT');
+
+/**
+ * InjectionToken for string dates that can be used to override default input formats.
+ **/
+export const DL_STRING_DATE_INPUT_FORMATS = new InjectionToken<string[]>('DL_STRING_DATE_INPUT_FORMATS');
+
+/**
+ * Adapts `string` to be usable as a date by date/time components that work with dates.
+ **/
+export class DlDateAdapterString extends DlDateAdapter<string> {
+
+  private readonly modelFormat: string;
+  private readonly inputFormats: string[];
+
+  constructor(@Inject(DL_STRING_DATE_INPUT_FORMATS) inputFormats: string[],
+              @Inject(DL_STRING_DATE_OUTPUT_FORMAT) modelFormat: string) {
+    super();
+    this.inputFormats = inputFormats;
+    this.modelFormat = modelFormat;
+  }
+
+  /**
+   * Returns the specified number.
+   * @param milliseconds
+   *  a moment time time.
+   * @returns
+   *  the specified moment in time.
+   */
+  fromMilliseconds(milliseconds: number): string {
+    return moment(milliseconds).format(this.modelFormat);
+  }
+
+  /**
+   * Returns the specified number.
+   * @param value
+   *  a moment time time or `null`
+   * @returns
+   *  the milliseconds for the specified value or `null`
+   *  `null` is returned when value is not a valid input date string
+   */
+  toMilliseconds(value: string | null): number | null {
+    if (value !== undefined && value !== null) {
+      const newMoment = moment(value, this.inputFormats, true);
+      return newMoment.isValid() ? newMoment.valueOf() : undefined;
+    }
+  }
+}

src/lib/dl-date-time-picker/dl-date-time-picker.component.md

@@ -15,17 +15,44 @@ The following keyboard shortcuts are supported in in all views:
 | `PAGE_DOWN`          | Go to the same cell in the next time period     |
 | `ENTER` or `SPACE`   | Select current cell                             |
 
-## Date Adapter
+## Supported date types
+
+Import the module corresponding to the desired data type of the date in the model.
+* Native JavaScript Date: import 'DlDateTimePickerDateModule'
+* Moment Date: import 'DlDateTimePickerMomentModule'
+* Milliseconds (local): import 'DlDateTimePickerNumberModule'
+* String (local): import 'DlDateTimePickerStringModule'
 
 A `DateAdapter` is used to adapt the data type in the model to the `number` data type 
 used internally by the date/time picker.
- 
+
 If you need a different data type than what is currently supported, you can extend 
 `DlDateAdapter<D>` to provide the data type you need then override the `DlDateAdapter` 
 provider in `app.module.ts` to use your new class. 
 
 `providers: [{provide: DlDateAdapter, useClass: MyCustomDateAdapter}],`
 
+### String Date Adapter Formats
+The input and output formats for dates are injected into the `DlDateAdapterString` class 
+using the `DL_STRING_DATE_INPUT_FORMATS` and `DL_STRING_DATE_OUTPUT_FORMAT` tokens.
+
+`DL_STRING_DATE_OUTPUT_FORMAT` defaults to `moment`'s `lll` long date format.
+
+`DL_STRING_DATE_INPUT_FORMATS` defaults to the following:
+```typescript
+[
+  moment.localeData().longDateFormat('lll'),
+  'YYYY-MM-DDTHH:mm',
+  'YYYY-MM-DDTHH:mm:ss',
+  'YYYY-MM-DDTHH:mm:ss.SSS',
+  'YYYY-MM-DD',
+  'YYYY-MM-DDTHH:mm:ss.SSS[Z]' // ISO_8601
+]
+```
+
+If you want different formats, override the injection tokens in `app.module.ts` 
+i.e `{provide: DL_STRING_DATE_OUTPUT_FORMAT, useValue: '<what ever format you want goes here>'}` 
+
 ## Model Provider
 
 `ModelProvider`s are used to create the `Model` for each of the `views` in the date/time picker.

src/lib/dl-date-time-picker/dl-date-time-picker.component.ts

@@ -455,7 +455,7 @@ export class DlDateTimePickerComponent<D> implements OnChanges, OnInit, ControlV
    **/
   private getStartDate() {
     if (hasValue(this._value)) {
-      return this._value;
+      return this._dateAdapter.toMilliseconds(this._value);
     }
     if (hasValue(this.startDate)) {
       return this.startDate;

src/lib/dl-date-time-picker/dl-date-time-picker.module.ts

@@ -19,6 +19,25 @@ import {DlMonthModelProvider} from './dl-model-provider-month';
 import {DlDayModelProvider} from './dl-model-provider-day';
 import {DlHourModelProvider} from './dl-model-provider-hour';
 import {DlMinuteModelProvider} from './dl-model-provider-minute';
+import {DL_STRING_DATE_INPUT_FORMATS, DL_STRING_DATE_OUTPUT_FORMAT, DlDateAdapterString} from './dl-date-adapter-string';
+
+import * as _moment from 'moment';
+
+/**
+ * Work around for moment namespace conflict when used with webpack and rollup.
+ * See https://github.com/dherges/ng-packagr/issues/163
+ *
+ * Depending on whether rollup is used, moment needs to be imported differently.
+ * Since Moment.js doesn't have a default export, we normally need to import using
+ * the `* as`syntax.
+ *
+ * rollup creates a synthetic default module and we thus need to import it using
+ * the `default as` syntax.
+ *
+ * @internal
+ *
+ **/
+const moment = _moment;
 
 /**
  * Import this module to supply your own `DateAdapter` provider.
@@ -72,3 +91,28 @@ export class DlDateTimePickerDateModule {
 })
 export class DlDateTimePickerMomentModule {
 }
+
+/**
+ * Import this module to store a `string` in the model.
+ */
+@NgModule({
+  imports: [DlDateTimePickerModule],
+  exports: [DlDateTimePickerComponent],
+  providers: [
+    {
+      provide: DL_STRING_DATE_INPUT_FORMATS, useValue: [
+        moment.localeData().longDateFormat('lll'),
+        'YYYY-MM-DDTHH:mm',
+        'YYYY-MM-DDTHH:mm:ss',
+        'YYYY-MM-DDTHH:mm:ss.SSS',
+        'YYYY-MM-DD',
+        moment.ISO_8601
+      ]
+    },
+    {provide: DL_STRING_DATE_OUTPUT_FORMAT, useValue: moment.localeData().longDateFormat('lll')},
+    {provide: DlDateAdapter, useClass: DlDateAdapterString}
+  ],
+})
+export class DlDateTimePickerStringModule {
+}
+

src/lib/dl-date-time-picker/specs/date-adapter/date-adapter-string.spec.ts

@@ -0,0 +1,68 @@
+import {DlDateAdapterString} from '../../dl-date-adapter-string';
+import {DlDateAdapter} from '../../dl-date-adapter';
+
+import * as _moment from 'moment';
+import {Moment} from 'moment';
+
+/**
+ * Work around for moment namespace conflict when used with webpack and rollup.
+ * See https://github.com/dherges/ng-packagr/issues/163
+ *
+ * Depending on whether rollup is used, moment needs to be imported differently.
+ * Since Moment.js doesn't have a default export, we normally need to import using
+ * the `* as`syntax.
+ *
+ * rollup creates a synthetic default module and we thus need to import it using
+ * the `default as` syntax.
+ *
+ * @internal
+ *
+ **/
+const moment = _moment;
+
+/**
+ * @license
+ * Copyright 2013-present Dale Lotts All Rights Reserved.
+ * http://www.dalelotts.com
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://github.com/dalelotts/angular-bootstrap-datetimepicker/blob/master/LICENSE
+ */
+
+
+
+describe('DlDateAdapterString', () => {
+
+  describe('default configuration', () => {
+    let dateAdapter: DlDateAdapterString;
+    let testMoment: Moment;
+    beforeEach(() => {
+      testMoment = moment(1523077200000);
+      dateAdapter = new DlDateAdapterString([
+          moment.localeData().longDateFormat('lll'),
+          'YYYY-MM-DDTHH:mm',
+          'YYYY-MM-DDTHH:mm:ss',
+          'YYYY-MM-DDTHH:mm:ss.SSS',
+          'YYYY-MM-DD',
+          'YYYY-MM-DDTHH:mm:ss.SSS[Z]' // ISO_8601
+        ],
+        moment.localeData().longDateFormat('lll')
+      );
+    });
+
+    describe('fromMilliseconds', () => {
+      it('should return "lll" moment format', () => {
+        expect(dateAdapter.fromMilliseconds(1523077200000)).toEqual(testMoment.format('lll'));
+      });
+    });
+
+    describe('toMilliseconds', () => {
+      it('should accept "lll" moment format', () => {
+        expect(dateAdapter.toMilliseconds(testMoment.format('lll'))).toEqual(1523077200000);
+      });
+      it('should return undefined for invalid date value', () => {
+        expect(dateAdapter.toMilliseconds('Aor 7, 2018 12:00 AM')).toBeUndefined();
+      });
+    });
+  });
+});

src/lib/dl-date-time-picker/specs/model-type/model-type-string.spec.ts

@@ -0,0 +1,62 @@
+/**
+ * @license
+ * Copyright 2013-present Dale Lotts All Rights Reserved.
+ * http://www.dalelotts.com
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://github.com/dalelotts/angular-bootstrap-datetimepicker/blob/master/LICENSE
+ */
+
+import {DlDateTimePickerComponent} from '../../dl-date-time-picker.component';
+import {Component, DebugElement, ViewChild} from '@angular/core';
+import {async, ComponentFixture, TestBed} from '@angular/core/testing';
+import {By} from '@angular/platform-browser';
+import {DlDateTimePickerStringModule} from '../../index';
+
+
+@Component({
+  template: '<dl-date-time-picker minView="day"></dl-date-time-picker>'
+})
+class ModelTypeComponent {
+  @ViewChild(DlDateTimePickerComponent) picker: DlDateTimePickerComponent<string>;
+}
+
+describe('DlDateTimePickerComponent modelType', () => {
+
+  beforeEach(async(() => {
+    return TestBed.configureTestingModule({
+      imports: [
+        DlDateTimePickerStringModule
+      ],
+      declarations: [
+        ModelTypeComponent,
+      ]
+    })
+      .compileComponents();
+  }));
+
+  describe('string formatted Date', () => {
+    let component: ModelTypeComponent;
+    let fixture: ComponentFixture<ModelTypeComponent>;
+    let debugElement: DebugElement;
+    let nativeElement: any;
+
+    beforeEach(async(() => {
+      fixture = TestBed.createComponent(ModelTypeComponent);
+      fixture.detectChanges();
+      fixture.whenStable().then(() => {
+        fixture.detectChanges();
+        component = fixture.componentInstance;
+        debugElement = fixture.debugElement;
+        nativeElement = debugElement.nativeElement;
+      });
+    }));
+
+    it('should be string type', () => {
+      const nowElement = fixture.debugElement.query(By.css('.dl-abdtp-now'));
+      nowElement.nativeElement.click();
+
+      expect(component.picker.value).toEqual(jasmine.any(String));
+    });
+  });
+});