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import { createDateField } from '../../index.js';
import { areAllDaysBetweenValid, dateStore, getAnnouncer, getDefaultDate, getFirstSegment, isBefore, isBeforeOrSame, } from '../../internal/helpers/date/index.js';
import { addMeltEventListener, makeElement, createElHelpers, effect, executeCallbacks, omit, overridable, sleep, styleToString, toWritableStores, } from '../../internal/helpers/index.js';
import { withGet } from '../../internal/helpers/withGet.js';
import { derived, writable } from 'svelte/store';
import { generateIds } from '../../internal/helpers/id.js';
import { removeDescriptionElement } from './_internal/helpers.js';
const defaults = {
isDateUnavailable: undefined,
value: undefined,
hourCycle: undefined,
locale: 'en',
granularity: undefined,
hideTimeZone: false,
defaultValue: {
start: undefined,
end: undefined,
},
startName: undefined,
endName: undefined,
disabled: false,
readonly: false,
readonlySegments: undefined,
minValue: undefined,
maxValue: undefined,
};
const { name } = createElHelpers('dateField');
const rangeFieldIdParts = ['field', 'label', 'description', 'validation'];
export function createDateRangeField(props) {
const withDefaults = { ...defaults, ...props };
const options = toWritableStores(omit(withDefaults, 'value', 'placeholder'));
const generatedIds = generateIds(rangeFieldIdParts);
const ids = toWritableStores({ ...generatedIds, ...withDefaults.ids });
const defaultDate = getDefaultDate({
defaultValue: withDefaults.defaultValue?.start,
defaultPlaceholder: withDefaults.defaultPlaceholder,
granularity: withDefaults.granularity,
});
const valueWritable = withDefaults.value ?? writable(withDefaults.defaultValue);
const value = overridable(valueWritable, withDefaults.onValueChange);
const startValue = withGet.writable(value.get()?.start ?? withDefaults.defaultValue?.start);
const endValue = withGet.writable(value.get()?.end ?? withDefaults.defaultValue?.end);
const isCompleted = derived(value, ($value) => {
return $value?.start && $value?.end;
});
const placeholderWritable = withDefaults.placeholder ?? writable(withDefaults.defaultPlaceholder ?? defaultDate);
const placeholder = dateStore(overridable(placeholderWritable, withDefaults.onPlaceholderChange), withDefaults.defaultPlaceholder ?? defaultDate);
const startField = createDateField({
...omit(withDefaults, 'defaultValue', 'onValueChange', 'startName', 'endName', 'readonlySegments'),
value: startValue,
name: withDefaults.startName,
readonlySegments: withDefaults.readonlySegments?.start,
ids: {
...generatedIds,
...withDefaults.ids,
...withDefaults.startIds,
},
});
const endField = createDateField({
...omit(withDefaults, 'defaultValue', 'onValueChange', 'endName', 'startName', 'readonlySegments'),
value: endValue,
name: withDefaults.endName,
readonlySegments: withDefaults.readonlySegments?.end,
ids: {
...generatedIds,
...withDefaults.ids,
...withDefaults.endIds,
},
});
const { elements: { segment: startSegment, hiddenInput: startHiddenInput }, states: { isInvalid: isStartInvalid, segmentContents: startSegmentContents, segmentValues: startSegmentValues, }, options: { name: startName }, } = startField;
const { elements: { segment: endSegment, hiddenInput: endHiddenInput }, states: { isInvalid: isEndInvalid, segmentContents: endSegmentContents, segmentValues: endSegmentValues, }, options: { name: endName }, } = endField;
const isInvalid = derived([value, isStartInvalid, isEndInvalid, options.isDateUnavailable], ([$value, $isStartInvalid, $isEndInvalid, $isDateUnavailable]) => {
if ($isStartInvalid || $isEndInvalid) {
return true;
}
if (!$value?.start || !$value?.end) {
return false;
}
if (!isBeforeOrSame($value?.start, $value?.end)) {
return true;
}
if ($isDateUnavailable !== undefined) {
const allValid = areAllDaysBetweenValid($value?.start, $value?.end, $isDateUnavailable, undefined);
if (!allValid) {
return true;
}
}
return false;
});
const label = makeElement(name('label'), {
stores: [isInvalid, options.disabled, ids.label],
returned: ([$isInvalid, $disabled, $labelId]) => {
return {
id: $labelId,
'data-invalid': $isInvalid ? '' : undefined,
'data-disabled': $disabled ? '' : undefined,
};
},
action: (node) => {
const unsub = executeCallbacks(addMeltEventListener(node, 'click', () => {
const firstSegment = getFirstSegment(ids.field.get());
if (!firstSegment)
return;
sleep(1).then(() => firstSegment.focus());
}), addMeltEventListener(node, 'mousedown', (e) => {
if (!e.defaultPrevented && e.detail > 1) {
e.preventDefault();
}
}));
return {
destroy: unsub,
};
},
});
const fieldIdDeps = derived([ids.field, ids.label, ids.description, ids.validation], ([$fieldId, $labelId, $descriptionId, $validationId]) => {
return {
field: $fieldId,
label: $labelId,
description: $descriptionId,
validation: $validationId,
};
});
const field = makeElement(name('field'), {
stores: [isCompleted, isInvalid, fieldIdDeps],
returned: ([$isCompleted, $isInvalid, $ids]) => {
const describedBy = $isCompleted
? `${$ids.description}${$isInvalid ? ` ${$ids.validation}` : ''}`
: `${$ids.description}`;
return {
role: 'group',
id: $ids.field,
'aria-labelledby': $ids.label,
'aria-describedby': describedBy,
'data-invalid': $isInvalid ? '' : undefined,
};
},
action: () => {
getAnnouncer();
return {
destroy() {
removeDescriptionElement(ids.description.get());
},
};
},
});
const validation = makeElement(name('validation'), {
stores: [isInvalid, ids.validation],
returned: ([$isInvalid, $validationId]) => {
const validStyle = styleToString({
display: 'none',
});
return {
id: $validationId,
'data-invalid': $isInvalid ? '' : undefined,
style: $isInvalid ? undefined : validStyle,
};
},
});
/**
* Combine the `startSegmentContents` and `endSegmentContents` stores
* into a single store that can be used to render the contents of the
* date range field.
*
* Since contents are generated automatically based on the locale
* and granularity props, this is not a writable store. If you wish
* to control the contents of the field, you should use the
* `startSegmentValues` and `endSegmentValues` stores returned
* from this builder instead.
*/
const segmentContents = derived([startSegmentContents, endSegmentContents], ([$startSegmentContents, $endSegmentContents]) => {
return {
start: $startSegmentContents,
end: $endSegmentContents,
};
});
/**
* Synchronize the `value` store with the individual `startValue`
* and `endValue` stores that are used by the individual date fields.
*
* We only want to update the `value` store when both the `startValue`
* and `endValue` stores are not `undefined`. This is because the
* `value` store is used to determine if the date field is completed,
* and we don't want to mark the date field as completed until both
* the start and end dates have been selected.
*/
effect([value], ([$value]) => {
const $startValue = startValue.get();
const $endValue = endValue.get();
if ($value?.start && $value?.end) {
if ($value.start !== $startValue) {
startValue.set($value.start);
}
if ($value.end !== $endValue) {
endValue.set($value.end);
}
return;
}
});
effect([startValue, endValue], ([$startValue, $endValue]) => {
const $value = value.get();
if ($value && $value?.start === $startValue && $value?.end === $endValue)
return;
if ($startValue && $endValue) {
value.update((prev) => {
if (prev?.start === $startValue && prev?.end === $endValue) {
return prev;
}
return {
start: $startValue,
end: $endValue,
};
});
}
else if ($value && $value?.start && $value?.end) {
value.set({
start: undefined,
end: undefined,
});
}
});
effect([options.disabled], ([$disabled]) => {
startField.options.disabled.set($disabled);
endField.options.disabled.set($disabled);
});
effect([options.readonly], ([$readonly]) => {
startField.options.readonly.set($readonly);
endField.options.readonly.set($readonly);
});
effect([options.readonlySegments], ([$readonlySegments]) => {
startField.options.readonlySegments.set($readonlySegments?.start);
endField.options.readonlySegments.set($readonlySegments?.end);
});
effect([options.minValue], ([$minValue]) => {
startField.options.minValue.set($minValue);
endField.options.minValue.set($minValue);
});
effect([options.maxValue], ([$maxValue]) => {
startField.options.maxValue.set($maxValue);
endField.options.maxValue.set($maxValue);
});
effect([options.granularity], ([$granularity]) => {
startField.options.granularity.set($granularity);
endField.options.granularity.set($granularity);
});
effect([options.hideTimeZone], ([$hideTimeZone]) => {
startField.options.hideTimeZone.set($hideTimeZone);
endField.options.hideTimeZone.set($hideTimeZone);
});
effect([options.hourCycle], ([$hourCycle]) => {
startField.options.hourCycle.set($hourCycle);
endField.options.hourCycle.set($hourCycle);
});
effect([options.locale], ([$locale]) => {
startField.options.locale.set($locale);
endField.options.locale.set($locale);
});
return {
elements: {
field,
label,
startSegment,
endSegment,
startHiddenInput,
endHiddenInput,
validation,
},
states: {
value,
placeholder: placeholder.toWritable(),
segmentContents,
endSegmentValues,
startSegmentValues,
isInvalid,
},
options: {
...options,
endName,
startName,
},
ids: {
field: ids,
start: startField.ids,
end: endField.ids,
},
};
}
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