2021-08-17 06:36:46 +00:00
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import { useInjectTreeContext } from './contextTypes';
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import { getDataAndAria } from './util';
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import Indent from './Indent';
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import { convertNodePropsToEventData } from './utils/treeUtil';
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import { computed, defineComponent, getCurrentInstance, onMounted, onUpdated, ref } from 'vue';
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import { treeNodeProps } from './props';
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import classNames from '../_util/classNames';
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import { warning } from '../vc-util/warning';
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import { DragNodeEvent } from './interface';
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2021-08-17 06:36:46 +00:00
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const ICON_OPEN = 'open';
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const ICON_CLOSE = 'close';
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const defaultTitle = '---';
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export default defineComponent({
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name: 'TreeNode',
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inheritAttrs: false,
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props: treeNodeProps,
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isTreeNode: 1,
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slots: ['title', 'icon', 'switcherIcon', 'checkable'],
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setup(props, { attrs, slots, expose }) {
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warning(
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!('slots' in props.data),
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'treeData slots is deprecated, please use `v-slot:icon` or `v-slot:title`, `v-slot:switcherIcon` instead',
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);
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const dragNodeHighlight = ref(false);
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const context = useInjectTreeContext();
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const selectHandle = ref();
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const hasChildren = computed(() => {
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const { eventKey } = props;
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const { keyEntities } = context.value;
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const { children } = keyEntities[eventKey] || {};
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return !!(children || []).length;
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});
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const isLeaf = computed(() => {
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const { isLeaf, loaded } = props;
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const { loadData } = context.value;
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const has = hasChildren.value;
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if (isLeaf === false) {
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return false;
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}
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return isLeaf || (!loadData && !has) || (loadData && loaded && !has);
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});
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const nodeState = computed(() => {
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const { expanded } = props;
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if (isLeaf.value) {
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return null;
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}
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return expanded ? ICON_OPEN : ICON_CLOSE;
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});
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const isDisabled = computed(() => {
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const { disabled } = props;
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const { disabled: treeDisabled } = context.value;
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return !!(treeDisabled || disabled);
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});
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const isCheckable = computed(() => {
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const { checkable } = props;
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const { checkable: treeCheckable } = context.value;
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// Return false if tree or treeNode is not checkable
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if (!treeCheckable || checkable === false) return false;
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return treeCheckable;
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});
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const isSelectable = computed(() => {
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const { selectable } = props;
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const { selectable: treeSelectable } = context.value;
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// Ignore when selectable is undefined or null
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if (typeof selectable === 'boolean') {
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return selectable;
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}
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return treeSelectable;
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});
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const eventData = computed(() => {
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return convertNodePropsToEventData(props);
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});
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const dragNodeEvent: DragNodeEvent = {
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eventData,
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eventKey: computed(() => props.eventKey),
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selectHandle,
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pos: computed(() => props.pos),
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};
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expose(dragNodeEvent);
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const onSelectorDoubleClick = (e: MouseEvent) => {
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const { onNodeDoubleClick } = context.value;
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onNodeDoubleClick(e, eventData.value);
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};
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const onSelect = (e: MouseEvent) => {
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if (isDisabled.value) return;
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const { onNodeSelect } = context.value;
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e.preventDefault();
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onNodeSelect(e, eventData.value);
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};
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const onCheck = (e: MouseEvent) => {
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if (isDisabled.value) return;
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const { disableCheckbox, checked } = props;
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const { onNodeCheck } = context.value;
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if (!isCheckable.value || disableCheckbox) return;
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e.preventDefault();
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const targetChecked = !checked;
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onNodeCheck(e, eventData.value, targetChecked);
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};
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const onSelectorClick = (e: MouseEvent) => {
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// Click trigger before select/check operation
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const { onNodeClick } = context.value;
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onNodeClick(e, eventData.value);
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if (isSelectable.value) {
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onSelect(e);
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} else {
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onCheck(e);
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}
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};
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const onMouseEnter = (e: MouseEvent) => {
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const { onNodeMouseEnter } = context.value;
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onNodeMouseEnter(e, eventData.value);
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};
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const onMouseLeave = (e: MouseEvent) => {
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const { onNodeMouseLeave } = context.value;
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onNodeMouseLeave(e, eventData.value);
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};
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const onContextmenu = (e: MouseEvent) => {
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const { onNodeContextMenu } = context.value;
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onNodeContextMenu(e, eventData.value);
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};
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const onDragStart = (e: DragEvent) => {
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const { onNodeDragStart } = context.value;
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e.stopPropagation();
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dragNodeHighlight.value = true;
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onNodeDragStart(e, dragNodeEvent);
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try {
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// ie throw error
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// firefox-need-it
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e.dataTransfer.setData('text/plain', '');
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} catch (error) {
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// empty
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}
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};
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const onDragEnter = (e: DragEvent) => {
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const { onNodeDragEnter } = context.value;
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e.preventDefault();
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e.stopPropagation();
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onNodeDragEnter(e, dragNodeEvent);
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};
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const onDragOver = (e: DragEvent) => {
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const { onNodeDragOver } = context.value;
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e.preventDefault();
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e.stopPropagation();
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onNodeDragOver(e, dragNodeEvent);
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};
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const onDragLeave = (e: DragEvent) => {
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const { onNodeDragLeave } = context.value;
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e.stopPropagation();
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onNodeDragLeave(e, dragNodeEvent);
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};
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const onDragEnd = (e: DragEvent) => {
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const { onNodeDragEnd } = context.value;
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e.stopPropagation();
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dragNodeHighlight.value = false;
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onNodeDragEnd(e, dragNodeEvent);
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};
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const onDrop = (e: DragEvent) => {
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const { onNodeDrop } = context.value;
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e.preventDefault();
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e.stopPropagation();
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dragNodeHighlight.value = false;
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onNodeDrop(e, dragNodeEvent);
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};
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// Disabled item still can be switch
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const onExpand = e => {
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const { onNodeExpand } = context.value;
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if (props.loading) return;
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onNodeExpand(e, eventData.value);
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};
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const renderSwitcherIconDom = (isLeaf: boolean) => {
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const {
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switcherIcon: switcherIconFromProps = slots.switcherIcon ||
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context.value.slots?.[props.data?.slots?.switcherIcon],
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} = props;
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const { switcherIcon: switcherIconFromCtx } = context.value;
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const switcherIcon = switcherIconFromProps || switcherIconFromCtx;
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// if switcherIconDom is null, no render switcher span
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if (typeof switcherIcon === 'function') {
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return switcherIcon({ ...props, isLeaf });
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}
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return switcherIcon;
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};
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// Load data to avoid default expanded tree without data
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const syncLoadData = () => {
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const { expanded, loading, loaded } = props;
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const { loadData, onNodeLoad } = context.value;
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if (loading) {
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return;
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}
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// read from state to avoid loadData at same time
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if (loadData && expanded && !isLeaf.value) {
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// We needn't reload data when has children in sync logic
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// It's only needed in node expanded
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if (!hasChildren.value && !loaded) {
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onNodeLoad(eventData.value);
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}
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}
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};
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onMounted(() => {
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syncLoadData();
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});
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onUpdated(() => {
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//syncLoadData();
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});
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// Switcher
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const renderSwitcher = () => {
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const { expanded } = props;
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const { prefixCls } = context.value;
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if (isLeaf.value) {
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// if switcherIconDom is null, no render switcher span
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const switcherIconDom = renderSwitcherIconDom(true);
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return switcherIconDom !== false ? (
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<span class={classNames(`${prefixCls}-switcher`, `${prefixCls}-switcher-noop`)}>
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{switcherIconDom}
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</span>
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) : null;
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}
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const switcherCls = classNames(
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`${prefixCls}-switcher`,
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`${prefixCls}-switcher_${expanded ? ICON_OPEN : ICON_CLOSE}`,
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);
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const switcherIconDom = renderSwitcherIconDom(false);
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return switcherIconDom !== false ? (
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<span onClick={onExpand} class={switcherCls}>
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{switcherIconDom}
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</span>
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) : null;
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};
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// Checkbox
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const renderCheckbox = () => {
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const { checked, halfChecked, disableCheckbox } = props;
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const { prefixCls } = context.value;
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const disabled = isDisabled.value;
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const checkable = isCheckable.value;
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if (!checkable) return null;
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return (
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<span
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class={classNames(
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`${prefixCls}-checkbox`,
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checked && `${prefixCls}-checkbox-checked`,
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!checked && halfChecked && `${prefixCls}-checkbox-indeterminate`,
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(disabled || disableCheckbox) && `${prefixCls}-checkbox-disabled`,
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)}
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onClick={onCheck}
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>
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{context.value.customCheckable?.()}
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</span>
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);
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};
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const renderIcon = () => {
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const { loading } = props;
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const { prefixCls } = context.value;
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return (
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<span
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class={classNames(
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`${prefixCls}-iconEle`,
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`${prefixCls}-icon__${nodeState.value || 'docu'}`,
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loading && `${prefixCls}-icon_loading`,
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)}
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/>
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);
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};
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const renderDropIndicator = () => {
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const { disabled, eventKey } = props;
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const {
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draggable,
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dropLevelOffset,
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dropPosition,
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prefixCls,
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indent,
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dropIndicatorRender,
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dragOverNodeKey,
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direction,
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} = context.value;
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const mergedDraggable = draggable !== false;
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// allowDrop is calculated in Tree.tsx, there is no need for calc it here
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const showIndicator = !disabled && mergedDraggable && dragOverNodeKey === eventKey;
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return showIndicator
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? dropIndicatorRender({ dropPosition, dropLevelOffset, indent, prefixCls, direction })
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: null;
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};
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// Icon + Title
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const renderSelector = () => {
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const {
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title = slots.title || context.value.slots?.[props.data?.slots?.title],
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selected,
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icon = slots.icon,
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loading,
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data,
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} = props;
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const {
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prefixCls,
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showIcon,
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icon: treeIcon,
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draggable,
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loadData,
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titleRender,
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} = context.value;
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const disabled = isDisabled.value;
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const mergedDraggable = typeof draggable === 'function' ? draggable(data) : draggable;
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|
|
const wrapClass = `${prefixCls}-node-content-wrapper`;
|
|
|
|
|
|
|
|
// Icon - Still show loading icon when loading without showIcon
|
|
|
|
let $icon;
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|
|
|
|
|
|
|
if (showIcon) {
|
2021-08-17 14:52:28 +00:00
|
|
|
const currentIcon = icon || context.value.slots?.[data?.slots?.icon] || treeIcon;
|
2021-08-17 06:36:46 +00:00
|
|
|
|
|
|
|
$icon = currentIcon ? (
|
|
|
|
<span class={classNames(`${prefixCls}-iconEle`, `${prefixCls}-icon__customize`)}>
|
|
|
|
{typeof currentIcon === 'function' ? currentIcon(props) : currentIcon}
|
|
|
|
</span>
|
|
|
|
) : (
|
|
|
|
renderIcon()
|
|
|
|
);
|
|
|
|
} else if (loadData && loading) {
|
|
|
|
$icon = renderIcon();
|
|
|
|
}
|
|
|
|
|
|
|
|
// Title
|
|
|
|
let titleNode: any;
|
|
|
|
if (typeof title === 'function') {
|
|
|
|
titleNode = title(data);
|
|
|
|
} else if (titleRender) {
|
|
|
|
titleNode = titleRender(data);
|
|
|
|
} else {
|
|
|
|
titleNode = title === undefined ? defaultTitle : title;
|
|
|
|
}
|
|
|
|
|
|
|
|
const $title = <span class={`${prefixCls}-title`}>{titleNode}</span>;
|
|
|
|
|
|
|
|
return (
|
|
|
|
<span
|
|
|
|
ref={selectHandle}
|
|
|
|
title={typeof title === 'string' ? title : ''}
|
|
|
|
class={classNames(
|
|
|
|
`${wrapClass}`,
|
|
|
|
`${wrapClass}-${nodeState.value || 'normal'}`,
|
2021-08-17 14:52:28 +00:00
|
|
|
!disabled && (selected || dragNodeHighlight.value) && `${prefixCls}-node-selected`,
|
2021-08-17 06:36:46 +00:00
|
|
|
!disabled && mergedDraggable && 'draggable',
|
|
|
|
)}
|
|
|
|
draggable={(!disabled && mergedDraggable) || undefined}
|
|
|
|
aria-grabbed={(!disabled && mergedDraggable) || undefined}
|
|
|
|
onMouseenter={onMouseEnter}
|
|
|
|
onMouseleave={onMouseLeave}
|
|
|
|
onContextmenu={onContextmenu}
|
|
|
|
onClick={onSelectorClick}
|
|
|
|
onDblclick={onSelectorDoubleClick}
|
|
|
|
onDragstart={mergedDraggable ? onDragStart : undefined}
|
|
|
|
>
|
|
|
|
{$icon}
|
|
|
|
{$title}
|
|
|
|
{renderDropIndicator()}
|
|
|
|
</span>
|
|
|
|
);
|
|
|
|
};
|
|
|
|
return () => {
|
|
|
|
const {
|
|
|
|
eventKey,
|
|
|
|
dragOver,
|
|
|
|
dragOverGapTop,
|
|
|
|
dragOverGapBottom,
|
|
|
|
isLeaf,
|
|
|
|
isStart,
|
|
|
|
isEnd,
|
|
|
|
expanded,
|
|
|
|
selected,
|
|
|
|
checked,
|
|
|
|
halfChecked,
|
|
|
|
loading,
|
|
|
|
domRef,
|
|
|
|
active,
|
|
|
|
data,
|
|
|
|
onMousemove,
|
|
|
|
...otherProps
|
|
|
|
} = { ...props, ...attrs };
|
|
|
|
const { prefixCls, filterTreeNode, draggable, keyEntities, dropContainerKey, dropTargetKey } =
|
|
|
|
context.value;
|
|
|
|
const disabled = isDisabled.value;
|
|
|
|
const dataOrAriaAttributeProps = getDataAndAria(otherProps);
|
|
|
|
const { level } = keyEntities[eventKey] || {};
|
|
|
|
const isEndNode = isEnd[isEnd.length - 1];
|
|
|
|
const mergedDraggable = typeof draggable === 'function' ? draggable(data) : draggable;
|
|
|
|
return (
|
|
|
|
<div
|
|
|
|
ref={domRef}
|
|
|
|
class={classNames(attrs.class, `${prefixCls}-treenode`, {
|
|
|
|
[`${prefixCls}-treenode-disabled`]: disabled,
|
|
|
|
[`${prefixCls}-treenode-switcher-${expanded ? 'open' : 'close'}`]: !isLeaf,
|
|
|
|
[`${prefixCls}-treenode-checkbox-checked`]: checked,
|
|
|
|
[`${prefixCls}-treenode-checkbox-indeterminate`]: halfChecked,
|
|
|
|
[`${prefixCls}-treenode-selected`]: selected,
|
|
|
|
[`${prefixCls}-treenode-loading`]: loading,
|
|
|
|
[`${prefixCls}-treenode-active`]: active,
|
|
|
|
[`${prefixCls}-treenode-leaf-last`]: isEndNode,
|
|
|
|
|
|
|
|
'drop-target': dropTargetKey === eventKey,
|
|
|
|
'drop-container': dropContainerKey === eventKey,
|
|
|
|
'drag-over': !disabled && dragOver,
|
|
|
|
'drag-over-gap-top': !disabled && dragOverGapTop,
|
|
|
|
'drag-over-gap-bottom': !disabled && dragOverGapBottom,
|
2021-08-18 02:48:16 +00:00
|
|
|
'filter-node': filterTreeNode && filterTreeNode(eventData.value),
|
2021-08-17 06:36:46 +00:00
|
|
|
})}
|
|
|
|
style={attrs.style}
|
|
|
|
onDragenter={mergedDraggable ? onDragEnter : undefined}
|
|
|
|
onDragover={mergedDraggable ? onDragOver : undefined}
|
|
|
|
onDragleave={mergedDraggable ? onDragLeave : undefined}
|
|
|
|
onDrop={mergedDraggable ? onDrop : undefined}
|
|
|
|
onDragend={mergedDraggable ? onDragEnd : undefined}
|
|
|
|
onMousemove={onMousemove}
|
|
|
|
{...dataOrAriaAttributeProps}
|
|
|
|
>
|
|
|
|
<Indent prefixCls={prefixCls} level={level} isStart={isStart} isEnd={isEnd} />
|
|
|
|
{renderSwitcher()}
|
|
|
|
{renderCheckbox()}
|
|
|
|
{renderSelector()}
|
|
|
|
</div>
|
|
|
|
);
|
|
|
|
};
|
|
|
|
},
|
|
|
|
});
|