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* Copyright bei
* Entwicklungs- und Pflegeverbund für das gemeinsame Fachverfahren gefa
*
*******************************************************************************/
import { Directive, EventEmitter, Input, Output } from '@angular/core';
import {
FocusableElementOwner,
FocusableRangeElementOwner,
FormControlStatus,
RangeInputSlots,
WidgetKeySet,
} from '../utils/util.types';
export type RangeInputSlotsFull = RangeInputSlots | 'both';
export type RangeErrors =
| {
start: string;
end: string;
}
| {
both: string;
};
export type RangeInputSlotsWithStatus = Record<
RangeInputSlots | 'both',
FormControlStatus
>;
/** check if var of type RangeErrors has common error slot for both input-fields */
export function isBothRangeErrors(val: RangeErrors): val is { both: string } {
return 'both' in val;
}
/** check if var of type RangeErrors has individual error slots for each input-field */
export function isIndividualRangeErrors(
val: RangeErrors,
): val is { start: string; end: string } {
return !isBothRangeErrors(val);
}
/**
* Internal base class to implement Range-Input-Field Components within `gc-two-slot-label-container`
*/
@Directive()
export abstract class BaseRangeInputFieldComponent<T>
implements FocusableElementOwner, FocusableRangeElementOwner
{
/**
* Controls the required state of the slots.
* - "start === true": sets the start slot as a required a required field
* - "end === true": sets the end slot as a required a required field
*/
@Input()
public required: Record<RangeInputSlots, boolean> = {
start: false,
end: false,
};
/**
* Sets the labels of the slots.
* - "start": sets the inner label of the start slot
* - "end": sets the inner label of the end slot
* - "both": sets the outer label of both slots (whole component)
*/
@Input()
public label: Record<RangeInputSlotsFull, string> = {
both: '',
start: '',
end: '',
};
/**
* Controls the readonly state of the component.
*/
@Input()
public readonly: boolean | Record<RangeInputSlots, boolean> = false;
/**
* Controls the disabled state of the component.
*/
@Input()
public disabled = false;
/**
* Hint message that appears below the slots.
*/
@Input()
public hint = '';
/**
* Overrides the default text on the start slot which is shown when the control is readonly and empty.
*/
@Input()
public startSlotReadonlyEmptyValue = '';
/**
* Overrides the default text on the end slot which is shown when the control is readonly and empty.
*/
@Input()
public endSlotReadonlyEmptyValue = '';
/**
* Fires on a start slot value change.
*/
@Output()
public readonly startSlotValueChange: EventEmitter<T> = new EventEmitter<T>();
/**
* Fires on an end slot value change.
*/
@Output()
public readonly endSlotValueChange: EventEmitter<T> = new EventEmitter<T>();
/**
* Signals changes of the current (combined) status of the component, e.g. also reports errors triggered by internal
* validation or input handling.
*/
@Output()
public readonly onStatusChange: EventEmitter<RangeInputSlotsWithStatus> =
new EventEmitter<RangeInputSlotsWithStatus>();
/**
* Event fired when the control gains focus
*/
@Output()
public readonly onFocusEntered: EventEmitter<void> = new EventEmitter<void>();
/**
* Event fired when the control looses focus
*/
@Output()
public readonly onFocusLeft: EventEmitter<void> = new EventEmitter<void>();
/**
* Event fired when a slot gains focus. Outputs information about focused slot.
*/
@Output()
public readonly onSlotFocusEntered: EventEmitter<RangeInputSlots> =
new EventEmitter<RangeInputSlots>();
/**
* Event fired when a slot loses focus. Outputs information about the slot that lost focus.
*/
@Output()
public readonly onSlotFocusLeft: EventEmitter<RangeInputSlots> =
new EventEmitter<RangeInputSlots>();
/**
* Optional error message for the slots.
* First option:
* - "start": error message that refers to the start slot
* - "end": error message that refers to the end slot
* Second option:
* - "both": error message that refers to both slots
*/
@Input()
public get errorMessage(): RangeErrors {
return this._errors;
}
public set errorMessage(value: RangeErrors) {
this._errors = value;
this.onStatusChange.emit(this.combineAllErrorStatuses());
if (this._isBothRangeErrors(value)) {
this.startSlotHasExternalError = value.both.length > 0;
this.endSlotHasExternalError = value.both.length > 0;
} else {
this.startSlotHasExternalError = value.start.length > 0;
this.endSlotHasExternalError = value.end.length > 0;
}
}
/** @ignore */
protected get startSlotErrorMessageId(): string | undefined {
if (this._isBothRangeErrors(this.errorMessage)) {
if (this.errorMessage.both.length > 0) {
return this.bothSlotErrorsMessageIdString;
}
} else if (this.errorMessage.start.length > 0) {
return this.startErrorMessageIdString;
}
if (this.startSlotHasInternalError) {
return this.startErrorMessageIdString;
}
return undefined;
}
/** @ignore */
protected get endSlotErrorMessageId(): string | undefined {
if (this._isBothRangeErrors(this.errorMessage)) {
if (this.errorMessage.both.length > 0) {
return this.bothSlotErrorsMessageIdString;
}
} else if (this.errorMessage.end.length > 0) {
return this.endErrorMessageIdString;
}
if (this.endSlotHasInternalError) {
return this.endErrorMessageIdString;
}
return undefined;
}
/** @ignore */
protected get bothSlotErrorsMessageIdString(): string {
return this._widgetKeys.errorKey + '-both';
}
/** @ignore */
protected get startErrorMessageIdString(): string {
return this._widgetKeys.errorKey + '-start';
}
/** @ignore */
protected get endErrorMessageIdString(): string {
return this._widgetKeys.errorKey + '-end';
}
/** @ignore */
protected get actualErrorSlots(): RangeInputSlotsFull | undefined {
if (
(this.startSlotHasInternalError && this.endSlotHasInternalError) ||
(this.startSlotHasExternalError && this.endSlotHasExternalError) ||
(this.startSlotHasExternalError && this.endSlotHasInternalError) ||
(this.startSlotHasInternalError && this.endSlotHasExternalError)
) {
return 'both';
}
if (this.startSlotHasInternalError || this.startSlotHasExternalError) {
return 'start';
}
if (this.endSlotHasInternalError || this.endSlotHasExternalError) {
return 'end';
}
return undefined;
}
/** @ignore */
protected get hintId(): string {
return this._widgetKeys.widgetKey + '-info-message';
}
/** @ignore */
protected startSlotInternalError = '';
/** @ignore */
protected endSlotInternalError = '';
/** @ignore */
protected startSlotHasInternalError = false;
/** @ignore */
protected endSlotHasInternalError = false;
/** @ignore */
protected focusedSlot?: 'start' | 'end';
/** @ignore */
private _errors: RangeErrors = { start: '', end: '', both: '' };
/** @ignore */
private startSlotHasExternalError = false;
/** @ignore */
private endSlotHasExternalError = false;
/** @ignore */
private lastFocusedSlot?: RangeInputSlots;
/** @ignore */
public abstract startSlotValue: T;
/** @ignore */
public abstract endSlotValue: T;
/** @ignore */
protected abstract readonly _widgetKeys: WidgetKeySet;
/** @ignore */
protected abstract startSlotElement: FocusableElementOwner;
/** @ignore */
protected abstract endSlotElement: FocusableElementOwner;
public focusRangeSlot(slot: 'start' | 'end'): boolean {
if (slot === 'start') {
return this.startSlotElement.focusChild();
} else {
return this.endSlotElement.focusChild();
}
}
public focusChild(): boolean {
return this.startSlotElement.focusChild();
}
/** @ignore */
protected _isBothRangeErrors(val: RangeErrors): val is { both: string } {
return isBothRangeErrors(val);
}
/** @ignore */
protected _isIndividualRangeErrors(
val: RangeErrors,
): val is { start: string; end: string } {
return isIndividualRangeErrors(val);
}
/** @ignore */
protected startSlotStatusHandler(s: FormControlStatus) {
const error = s.error ? s.error[0] : '';
this.startSlotInternalError = error;
this.startSlotHasInternalError = s.error !== undefined;
const errors: RangeInputSlotsWithStatus = this.combineAllErrorStatuses();
this.onStatusChange.emit(errors);
}
/** @ignore */
protected endSlotStatusHandler(s: FormControlStatus) {
const error = s.error ? s.error[0] : '';
this.endSlotInternalError = error;
this.endSlotHasInternalError = s.error !== undefined;
const errors: RangeInputSlotsWithStatus = this.combineAllErrorStatuses();
this.onStatusChange.emit(errors);
}
/** @ignore */
protected isReadonly(slot: RangeInputSlots): boolean {
if (typeof this.readonly === 'object') {
switch (slot) {
case 'start':
return this.readonly.start;
case 'end':
return this.readonly.end;
}
} else {
return this.readonly;
}
}
/** @ignore */
protected handleStartSlotFocusEntered(): void {
if (this.lastFocusedSlot === undefined) {
this.onFocusEntered.emit();
}
this.focusedSlot = 'start';
this.lastFocusedSlot = 'start';
this.onSlotFocusEntered.emit('start');
}
/** @ignore */
protected handleStartSlotFocusLeft(): void {
setTimeout(() => {
if (this.focusedSlot === undefined) {
this.lastFocusedSlot = undefined;
this.onFocusLeft.emit();
}
});
this.focusedSlot = undefined;
this.onSlotFocusLeft.emit('start');
}
/** @ignore */
protected handleEndSlotFocusEntered(): void {
if (this.lastFocusedSlot === undefined) {
this.onFocusEntered.emit();
}
this.focusedSlot = 'end';
this.lastFocusedSlot = 'end';
this.onSlotFocusEntered.emit('end');
}
/** @ignore */
protected handleEndSlotFocusLeft(): void {
setTimeout(() => {
if (this.focusedSlot === undefined) {
this.onFocusLeft.emit();
this.lastFocusedSlot = undefined;
}
});
this.focusedSlot = undefined;
this.onSlotFocusLeft.emit('end');
}
/** @ignore */
protected startErrorMessage(): string {
if (this.startSlotHasInternalError) {
return this.startSlotInternalError;
} else if (
isIndividualRangeErrors(this.errorMessage) &&
this.errorMessage.start
) {
return this.errorMessage.start;
}
return '';
}
/** @ignore */
protected endErrorMessage(): string {
if (this.endSlotHasInternalError) {
return this.endSlotInternalError;
} else if (
isIndividualRangeErrors(this.errorMessage) &&
this.errorMessage.end
) {
return this.errorMessage.end;
}
return '';
}
/** @ignore */
private combineAllErrorStatuses(): RangeInputSlotsWithStatus {
const errors: RangeInputSlotsWithStatus = {
start: { error: [] },
end: { error: [] },
both: { error: [] },
};
if (this.startSlotInternalError.length > 0) {
errors.start.error?.push(this.startSlotInternalError);
}
if (this.endSlotInternalError.length > 0) {
errors.end.error?.push(this.endSlotInternalError);
}
if (
this._isIndividualRangeErrors(this.errorMessage) &&
this.errorMessage.start.length > 0
) {
errors.start.error?.push(this.errorMessage.start);
}
if (
this._isIndividualRangeErrors(this.errorMessage) &&
this.errorMessage.end.length > 0
) {
errors.end.error?.push(this.errorMessage.end);
}
if (
this._isBothRangeErrors(this.errorMessage) &&
this.errorMessage.both.length > 0
) {
errors.both.error?.push(this.errorMessage.both);
}
return errors;
}
}
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