Added option for initialDates

Author: mustafashykh

src/daterangepicker/daterangepicker.component.ts

@@ -157,6 +157,9 @@ interface VisibleCalendar {
   ]
 })
 export class DaterangepickerComponent implements OnInit, OnChanges {
+  @Input()
+  initialDates: [string | Dayjs, string | Dayjs] = null;
+
   @Input()
   startDate = dayjs().utc(true).startOf('day');
 
@@ -413,9 +416,28 @@ export class DaterangepickerComponent implements OnInit, OnChanges {
       }
     }
     this.locale.daysOfWeek = daysOfWeek;
+
+    // Initialize with initialDates if provided
+    let leftMonth: Dayjs;
+    let rightMonth: Dayjs;
+
+    if (this.initialDates && this.initialDates.length === 2) {
+      leftMonth = dayjs.isDayjs(this.initialDates[0]) ? this.initialDates[0].clone() : dayjs(this.initialDates[0]).utc(true);
+      rightMonth = dayjs.isDayjs(this.initialDates[1]) ? this.initialDates[1].clone() : dayjs(this.initialDates[1]).utc(true);
+    } else {
+      leftMonth = dayjs().utc(true);
+      rightMonth = leftMonth.clone().add(1, 'month');
+    }
+
+    // Set calendar view without selecting dates
+    if (!this.startDate || this.startDate.isSame(dayjs().utc(true).startOf('day'))) {
+      this.leftCalendar.month = leftMonth.clone();
+      this.rightCalendar.month = rightMonth.clone();
+    }
+
     if (this.inline) {
-      this.cachedVersion.start = this.startDate.clone();
-      this.cachedVersion.end = this.endDate.clone();
+      this.cachedVersion.start = this.startDate?.clone();
+      this.cachedVersion.end = this.endDate?.clone();
     }
 
     if (this.startDate && this.timePicker) {
@@ -1455,7 +1477,7 @@ export class DaterangepickerComponent implements OnInit, OnChanges {
       const minute = parseInt(String(this.timepickerVariables[side].selectedMinute), 10);
       const second = this.timePickerSeconds ? parseInt(String(this.timepickerVariables[side].selectedSecond), 10) : 0;
       return date.clone().hour(hour).minute(minute).second(second);
-
+      
     }else{
       return;
     }

src/daterangepicker/daterangepicker.directive.ts

@@ -146,13 +146,16 @@ export class DaterangepickerDirective implements OnInit, OnChanges, DoCheck {
   @Input()
   timePickerSeconds = false;
 
+  @Input()
+  initialDates: [string | dayjs.Dayjs, string | dayjs.Dayjs];
+
   @Input() closeOnAutoApply = true;
   @Input()
   private endKeyHolder: string;
 
   public picker: DaterangepickerComponent;
   private startKeyHolder: string;
-  private notForChangesProperty: Array<string> = ['locale', 'endKey', 'startKey'];
+  private notForChangesProperty: Array<string> = ['locale', 'endKey', 'startKey', 'initialDates'];
   private onChangeFn = Function.prototype;
   private onTouched = Function.prototype;
   private validatorChange = Function.prototype;
@@ -290,6 +293,9 @@ export class DaterangepickerDirective implements OnInit, OnChanges, DoCheck {
 
   // eslint-disable-next-line @angular-eslint/no-conflicting-lifecycle
   ngOnInit(): void {
+    if (this.initialDates) {
+      this.picker.initialDates = this.initialDates;
+    }
     this.picker.startDateChanged.asObservable().subscribe((itemChanged: StartDate) => {
       this.startDateChanged.emit(itemChanged);
     });