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9.9 KiB
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9.9 KiB
Plaintext
{"version":3,"file":"roving-focus-group-impl.mjs","sources":["../../../../../../packages/components/roving-focus-group/src/roving-focus-group-impl.vue"],"sourcesContent":["<template>\n <slot />\n</template>\n\n<script lang=\"ts\">\nimport {\n computed,\n defineComponent,\n inject,\n nextTick,\n provide,\n readonly,\n ref,\n toRef,\n unref,\n watch,\n} from 'vue'\nimport { useEventListener } from '@vueuse/core'\nimport { composeEventHandlers } from '@element-plus/utils'\nimport {\n ROVING_FOCUS_COLLECTION_INJECTION_KEY,\n rovingFocusGroupProps,\n} from './roving-focus-group'\nimport { ROVING_FOCUS_GROUP_INJECTION_KEY } from './tokens'\nimport { focusFirst, getFocusIntent, reorderArray } from './utils'\n\nimport type { StyleValue } from 'vue'\n\nconst CURRENT_TAB_ID_CHANGE_EVT = 'currentTabIdChange'\nconst ENTRY_FOCUS_EVT = 'rovingFocusGroup.entryFocus'\nconst EVT_OPTS: EventInit = { bubbles: false, cancelable: true }\n\nexport default defineComponent({\n name: 'ElRovingFocusGroupImpl',\n inheritAttrs: false,\n props: rovingFocusGroupProps,\n emits: [CURRENT_TAB_ID_CHANGE_EVT, 'entryFocus'],\n setup(props, { emit }) {\n const currentTabbedId = ref<string | null>(\n (props.currentTabId || props.defaultCurrentTabId) ?? null\n )\n const isBackingOut = ref(false)\n const isClickFocus = ref(false)\n const rovingFocusGroupRef = ref<HTMLElement>()\n const { getItems } = inject(\n ROVING_FOCUS_COLLECTION_INJECTION_KEY,\n undefined\n )!\n const rovingFocusGroupRootStyle = computed(() => {\n // casting to any for fix compiler error since HTMLElement.StyleValue does not\n // support CSSProperties\n return [\n {\n outline: 'none',\n },\n props.style as StyleValue,\n ] as any\n })\n\n const onItemFocus = (tabbedId: string) => {\n emit(CURRENT_TAB_ID_CHANGE_EVT, tabbedId)\n }\n\n const onItemShiftTab = () => {\n isBackingOut.value = true\n }\n\n const onMousedown = composeEventHandlers(\n (e: Event) => {\n props.onMousedown?.(e)\n },\n () => {\n isClickFocus.value = true\n }\n )\n\n const onFocus = composeEventHandlers(\n (e: FocusEvent) => {\n props.onFocus?.(e)\n },\n (e) => {\n const isKeyboardFocus = !unref(isClickFocus)\n const { target, currentTarget } = e\n if (\n target === currentTarget &&\n isKeyboardFocus &&\n !unref(isBackingOut)\n ) {\n const entryFocusEvt = new Event(ENTRY_FOCUS_EVT, EVT_OPTS)\n currentTarget?.dispatchEvent(entryFocusEvt)\n\n if (!entryFocusEvt.defaultPrevented) {\n const items = getItems<{\n id: string\n focusable: boolean\n active: boolean\n }>().filter((item) => item.focusable)\n const activeItem = items.find((item) => item.active)\n const currentItem = items.find(\n (item) => item.id === unref(currentTabbedId)\n )\n const candidates = [activeItem!, currentItem!, ...items].filter(\n Boolean\n )\n const candidateNodes = candidates.map((item) => item.ref!)\n focusFirst(candidateNodes)\n }\n }\n\n isClickFocus.value = false\n }\n )\n\n const onBlur = composeEventHandlers(\n (e: Event) => {\n props.onBlur?.(e)\n },\n () => {\n isBackingOut.value = false\n }\n )\n\n const handleEntryFocus = (...args: any[]) => {\n emit('entryFocus', ...args)\n }\n\n const onKeydown = (e: KeyboardEvent) => {\n const focusIntent = getFocusIntent(e as KeyboardEvent)\n\n if (focusIntent) {\n e.preventDefault()\n const items = getItems<{\n id: string\n focusable: boolean\n active: boolean\n }>().filter((item) => item.focusable)\n\n let elements = items.map((item) => item.ref!)\n\n switch (focusIntent) {\n case 'last': {\n elements.reverse()\n break\n }\n case 'prev':\n case 'next': {\n if (focusIntent === 'prev') {\n elements.reverse()\n }\n const currentIdx = elements.indexOf(e.currentTarget as HTMLElement)\n elements = props.loop\n ? reorderArray(elements, currentIdx + 1)\n : elements.slice(currentIdx + 1)\n break\n }\n default: {\n break\n }\n }\n\n nextTick(() => {\n focusFirst(elements)\n })\n }\n }\n\n provide(ROVING_FOCUS_GROUP_INJECTION_KEY, {\n currentTabbedId: 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