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Calendar enhancements to restrict year, month and date navigation beyond minDate and maxDate. #12870

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Calendar enhancements to restrict year, month and date navigation beyond minDate and maxDate. #12870

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7d38b41
datepicker PrevButton code indentation updated
subhajitdebnath Apr 8, 2023
87a8e1c
Disabling calendar navigation buttons and year selector based on min …
subhajitdebnath Apr 8, 2023
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94 changes: 92 additions & 2 deletions src/app/components/calendar/calendar.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -112,7 +112,18 @@ export type CalendarTypeView = 'date' | 'month' | 'year';
<div class="p-datepicker-group-container">
<div class="p-datepicker-group" *ngFor="let month of months; let i = index">
<div class="p-datepicker-header">
<button (keydown)="onContainerButtonKeydown($event)" class="p-datepicker-prev p-link" (click)="onPrevButtonClick($event)" *ngIf="i === 0" type="button" pRipple>
<button
(keydown)="onContainerButtonKeydown($event)"
class="p-datepicker-prev p-link"
(click)="onPrevButtonClick($event)"
*ngIf="i === 0"
type="button"
pRipple
[disabled]="isNavigationDisabled('prev', month)"
[ngClass]="{
'p-disabled': isNavigationDisabled('prev', month)
}"
>
<span class="p-datepicker-prev-icon pi pi-chevron-left"></span>
</button>
<div class="p-datepicker-title">
Expand All @@ -134,6 +145,10 @@ export type CalendarTypeView = 'date' | 'month' | 'year';
[style.display]="numberOfMonths === 1 ? 'inline-flex' : i === numberOfMonths - 1 ? 'inline-flex' : 'none'"
type="button"
pRipple
[disabled]="isNavigationDisabled('next', month)"
[ngClass]="{
'p-disabled': isNavigationDisabled('next', month)
}"
>
<span class="p-datepicker-next-icon pi pi-chevron-right"></span>
</button>
Expand Down Expand Up @@ -184,7 +199,14 @@ export type CalendarTypeView = 'date' | 'month' | 'year';
</span>
</div>
<div class="p-yearpicker" *ngIf="currentView === 'year'">
<span *ngFor="let y of yearPickerValues()" (click)="onYearSelect($event, y)" (keydown)="onYearCellKeydown($event, y)" class="p-yearpicker-year" [ngClass]="{ 'p-highlight': isYearSelected(y) }" pRipple>
<span
*ngFor="let y of yearPickerValues()"
(click)="onYearSelect($event, y)"
(keydown)="onYearCellKeydown($event, y)"
class="p-yearpicker-year"
[ngClass]="{ 'p-highlight': isYearSelected(y), 'p-disabled': isYearDisabled(y) }"
pRipple
>
{{ y }}
</span>
</div>
Expand Down Expand Up @@ -1364,6 +1386,74 @@ export class Calendar implements OnInit, OnDestroy, ControlValueAccessor {
return true;
}

isYearDisabled(year): boolean {
let validMin = true;
let validMax = true;

if (this.minDate) {
if (this.minDate.getFullYear() > year) {
validMin = false;
}
}
if (this.maxDate) {
if (this.maxDate.getFullYear() < year) {
validMax = false;
}
}
return !validMin || !validMax;
}

isNavigationDisabled(type: string, month): boolean {
if(this.currentView === 'date') {
if (this.minDate && type === 'prev') {
if (this.minDate.getFullYear() > this.months[0].year) {
return true;
} else if(this.minDate.getFullYear() === this.months[0].year){
if (this.minDate.getMonth() >= this.months[0].month) {
return true;
}
}
}
if (this.maxDate && type === 'next') {
if (this.maxDate.getFullYear() < this.months[0].year) {
return true;
} else if(this.maxDate.getFullYear() === this.months[0].year){
if (this.maxDate.getMonth() <= this.months[0].month) {
return true;
}
}
}
return false;
} else if(this.currentView === 'year') {
let yearpicker: any[] = this.yearPickerValues();
if (this.minDate && type === 'prev') {
if(yearpicker[0] > this.minDate.getFullYear()) {
return false;
}
}
if (this.maxDate && type === 'next') {
if(yearpicker[yearpicker.length - 1] < this.maxDate.getFullYear()) {
return false;
}
}
return true;
} else if(this.currentView === 'month') {
let year = this.getYear(month);
if (this.minDate && type === 'prev') {
if(year > this.minDate.getFullYear()) {
return false;
}
}
if (this.maxDate && type === 'next') {
if(year < this.maxDate.getFullYear()) {
return false;
}
}
return true;
}
return false;
}

isYearSelected(year) {
if (this.isComparable()) {
let value = this.isRangeSelection() ? this.value[0] : this.value;
Expand Down