Update tabs API

packages/@react-aria/tabs/src/index.ts

@@ -10,4 +10,6 @@
  * governing permissions and limitations under the License.
  */
 
-export * from './useTabs';
+export * from './useTab';
+export * from './useTabPanel';
+export * from './useTabList';

packages/@react-aria/tabs/src/useTab.ts

@@ -0,0 +1,59 @@
+/*
+ * Copyright 2020 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+
+import {AriaTabProps} from '@react-types/tabs';
+import {generateId} from './utils';
+import {HTMLAttributes, RefObject} from 'react';
+import {SingleSelectListState} from '@react-stately/list';
+import {usePress} from '@react-aria/interactions';
+import {useSelectableItem} from '@react-aria/selection';
+
+interface TabAria {
+  /** Props for the tab element. */
+  tabProps: HTMLAttributes<HTMLElement>
+}
+
+export function useTab<T>(
+  props: AriaTabProps,
+  state: SingleSelectListState<T>,
+  ref: RefObject<HTMLElement>
+): TabAria {
+  let {key, isDisabled: propsDisabled} = props;
+  let {selectionManager: manager, selectedKey} = state;
+
+  let isSelected = key === selectedKey;
+
+  let {itemProps} = useSelectableItem({
+    selectionManager: manager,
+    key,
+    ref
+  });
+  let isDisabled = propsDisabled || state.disabledKeys.has(key);
+
+  let {pressProps} = usePress({...itemProps, isDisabled});
+  let tabId = generateId(state, key, 'tab');
+  let tabPanelId = generateId(state, key, 'tabpanel');
+  let {tabIndex} = pressProps;
+
+  return {
+    tabProps: {
+      ...pressProps,
+      id: tabId,
+      'aria-selected': isSelected,
+      'aria-disabled': isDisabled || undefined,
+      'aria-controls': isSelected ? tabPanelId : undefined,
+      tabIndex: isDisabled ? undefined : tabIndex,
+      role: 'tab'
+    }
+  };
+}
+

packages/@react-aria/tabs/src/useTabList.ts

@@ -0,0 +1,66 @@
+/*
+* Copyright 2020 Adobe. All rights reserved.
+* This file is licensed to you under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License. You may obtain a copy
+* of the License at http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software distributed under
+* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+* OF ANY KIND, either express or implied. See the License for the specific language
+* governing permissions and limitations under the License.
+*/
+
+import {AriaTabListProps} from '@react-types/tabs';
+import {HTMLAttributes, useMemo} from 'react';
+import {mergeProps, useId, useLabels} from '@react-aria/utils';
+import {TabListState} from '@react-stately/tabs';
+import {tabsIds} from './utils';
+import {TabsKeyboardDelegate} from './TabsKeyboardDelegate';
+import {useLocale} from '@react-aria/i18n';
+import {useSelectableCollection} from '@react-aria/selection';
+
+interface TabListAria {
+  /** Props for the tablist container. */
+  tabListProps: HTMLAttributes<HTMLElement>
+}
+
+export function useTabList<T>(props: AriaTabListProps<T>, state: TabListState<T>, ref): TabListAria {
+  let {
+    orientation = 'horizontal',
+    keyboardActivation = 'automatic'
+  } = props;
+  let {
+    collection,
+    selectionManager: manager,
+    disabledKeys
+  } = state;
+  let {direction} = useLocale();
+  let delegate = useMemo(() => new TabsKeyboardDelegate(
+    collection,
+    direction,
+    orientation,
+    disabledKeys), [collection, disabledKeys, orientation, direction]);
+
+  let {collectionProps} = useSelectableCollection({
+    ref,
+    selectionManager: manager,
+    keyboardDelegate: delegate,
+    selectOnFocus: keyboardActivation === 'automatic',
+    disallowEmptySelection: true
+  });
+
+  // Compute base id for all tabs
+  let tabsId = useId();
+  tabsIds.set(state, tabsId);
+
+  let tabListLabelProps = useLabels({...props, id: tabsId});
+
+  return {
+    tabListProps: {
+      ...mergeProps(collectionProps, tabListLabelProps),
+      role: 'tablist',
+      'aria-orientation': orientation,
+      tabIndex: undefined
+    }
+  };
+}

packages/@react-aria/tabs/src/useTabPanel.ts

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2020 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+
+import {AriaTabPanelProps} from '@react-types/tabs';
+import {generateId} from './utils';
+import {HTMLAttributes} from 'react';
+import {mergeProps} from '@react-aria/utils';
+import {TabListState} from '@react-stately/tabs';
+
+interface TabPanelAria {
+  /** Props for the tab panel element. */
+  tabPanelProps: HTMLAttributes<HTMLElement>
+}
+
+export function useTabPanel<T>(props: AriaTabPanelProps, state: TabListState<T>): TabPanelAria {
+  return {
+    tabPanelProps: mergeProps(props, {
+      id: generateId(state, state?.selectedKey, 'tabpanel'),
+      'aria-labelledby': generateId(state, state?.selectedKey, 'tab'),
+      tabIndex: 0,
+      role: 'tabpanel'
+    })
+  };
+}

packages/@react-aria/tabs/src/utils.ts

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2020 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+
+import {Key} from 'react';
+import {SingleSelectListState} from '@react-stately/list';
+
+export const tabsIds = new WeakMap<SingleSelectListState<unknown>, string>();
+
+export function generateId<T>(state: SingleSelectListState<T>, key: Key, role: string) {
+  if (typeof key === 'string') {
+    key = key.replace(/\s+/g, '');
+  }
+
+  let baseId = tabsIds.get(state);
+  return `${baseId}-${role}-${key}`;
+}
+