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import { addMeltEventListener, makeElement, createElHelpers, disabledAttr, executeCallbacks, getDirectionalKeys, getElemDirection, isBrowser, isHTMLElement, kbd, last, next, omit, overridable, prev, toWritableStores, } from '../../internal/helpers/index.js';
import { writable } from 'svelte/store';
const defaults = {
orientation: 'horizontal',
activateOnFocus: true,
loop: true,
autoSet: true,
};
const { name, selector } = createElHelpers('tabs');
export function createTabs(props) {
const withDefaults = { ...defaults, ...props };
const options = toWritableStores(omit(withDefaults, 'defaultValue', 'value', 'onValueChange', 'autoSet'));
const { orientation, activateOnFocus, loop } = options;
const valueWritable = withDefaults.value ?? writable(withDefaults.defaultValue);
const value = overridable(valueWritable, withDefaults?.onValueChange);
let ssrValue = withDefaults.defaultValue ?? value.get();
// Root
const root = makeElement(name(), {
stores: orientation,
returned: ($orientation) => {
return {
'data-orientation': $orientation,
};
},
});
// List
const list = makeElement(name('list'), {
stores: orientation,
returned: ($orientation) => {
return {
role: 'tablist',
'aria-orientation': $orientation,
'data-orientation': $orientation,
};
},
});
const parseTriggerProps = (props) => {
if (typeof props === 'string') {
return { value: props };
}
else {
return props;
}
};
const trigger = makeElement(name('trigger'), {
stores: [value, orientation],
returned: ([$value, $orientation]) => {
return (props) => {
const { value: tabValue, disabled } = parseTriggerProps(props);
if (!$value && !ssrValue && withDefaults.autoSet) {
ssrValue = tabValue;
$value = tabValue;
value.set(tabValue);
}
const sourceOfTruth = isBrowser ? $value : ssrValue;
const isActive = sourceOfTruth === tabValue;
return {
type: 'button',
role: 'tab',
'data-state': isActive ? 'active' : 'inactive',
tabindex: isActive ? 0 : -1,
'data-value': tabValue,
'data-orientation': $orientation,
'data-disabled': disabledAttr(disabled),
disabled: disabledAttr(disabled),
};
};
},
action: (node) => {
const unsub = executeCallbacks(addMeltEventListener(node, 'focus', () => {
const disabled = node.dataset.disabled === 'true';
const tabValue = node.dataset.value;
if (activateOnFocus.get() && !disabled && tabValue !== undefined) {
value.set(tabValue);
}
}), addMeltEventListener(node, 'click', (e) => {
node.focus();
e.preventDefault();
const disabled = node.dataset.disabled === 'true';
if (disabled)
return;
const tabValue = node.dataset.value;
node.focus();
if (tabValue !== undefined) {
value.set(tabValue);
}
}), addMeltEventListener(node, 'keydown', (e) => {
const tabValue = node.dataset.value;
if (!tabValue)
return;
const el = e.currentTarget;
if (!isHTMLElement(el))
return;
const rootEl = el.closest(selector());
if (!isHTMLElement(rootEl))
return;
const $loop = loop.get();
const triggers = Array.from(rootEl.querySelectorAll('[role="tab"]')).filter((trigger) => isHTMLElement(trigger));
const enabledTriggers = triggers.filter((el) => !el.hasAttribute('data-disabled'));
const triggerIdx = enabledTriggers.findIndex((el) => el === e.target);
const dir = getElemDirection(rootEl);
const { nextKey, prevKey } = getDirectionalKeys(dir, orientation.get());
if (e.key === nextKey) {
e.preventDefault();
const nextEl = next(enabledTriggers, triggerIdx, $loop);
nextEl.focus();
}
else if (e.key === prevKey) {
e.preventDefault();
const prevEl = prev(enabledTriggers, triggerIdx, $loop);
prevEl.focus();
}
else if (e.key === kbd.ENTER || e.key === kbd.SPACE) {
e.preventDefault();
value.set(tabValue);
}
else if (e.key === kbd.HOME) {
e.preventDefault();
const firstTrigger = enabledTriggers[0];
firstTrigger.focus();
}
else if (e.key === kbd.END) {
e.preventDefault();
const lastTrigger = last(enabledTriggers);
lastTrigger.focus();
}
}));
return {
destroy: unsub,
};
},
});
// Content
const content = makeElement(name('content'), {
stores: value,
returned: ($value) => {
return (tabValue) => {
return {
role: 'tabpanel',
// TODO: improve
'aria-labelledby': tabValue,
hidden: isBrowser
? $value === tabValue
? undefined
: true
: ssrValue === tabValue
? undefined
: true,
tabindex: 0,
};
};
},
});
return {
elements: {
root,
list,
trigger,
content,
},
states: {
value,
},
options,
};
}
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