tdesign-vue/es/tree/hooks/useDragHandle.js

tdesign-vue

/**
 * tdesign v1.12.1
 * (c) 2025 tdesign
 * @license MIT
 */

import { DragPosition } from './useDraggable.js';
import { emitEvent } from '../util.js';
import 'lodash-es';
import '../adapt.js';
import '@vue/composition-api';
import 'vue';
import '../../utils/withInstall.js';
import '@babel/runtime/helpers/defineProperty';
import '../../hooks/useVModel.js';
import '../../hooks/useDefaultValue.js';
import 'tdesign-icons-vue';
import '../../checkbox/index.js';
import '../../checkbox/group.js';
import '../../_chunks/dep-323b993c.js';
import '@babel/runtime/helpers/typeof';
import '@babel/runtime/helpers/toConsumableArray';
import '@babel/runtime/helpers/slicedToArray';
import '../../utils/helper.js';
import '@babel/runtime/helpers/objectWithoutProperties';
import '../../checkbox/checkbox.js';
import '../../checkbox/props.js';
import '../../hooks/index.js';
import '../../utils/render-tnode.js';
import '@babel/runtime/helpers/readOnlyError';
import '../../hooks/slots.js';
import '../../hooks/useCommonClassName.js';
import '../../config-provider/useConfig.js';
import '../../config-provider/context.js';
import '../../_common/js/global-config/default-config.js';
import '../../_common/js/global-config/locale/zh_CN.js';
import '../../_chunks/dep-c44a474d.js';
import '../../_chunks/dep-d639fbd7.js';
import 'dayjs';
import '../../_chunks/dep-3c66615e.js';
import '../../config-provider/type.js';
import '../../_common/js/global-config/t.js';
import '../../hooks/useConfig.js';
import '../../hooks/useDestroyOnClose.js';
import '../../hooks/useElementLazyRender.js';
import '../../_common/js/utils/observe.js';
import '../../hooks/useFormDisabled.js';
import '../../hooks/useGlobalIcon.js';
import '../../hooks/useLazyLoad.js';
import '../../hooks/useResizeObserver.js';
import '../../hooks/useVirtualScrollNew.js';
import '../../hooks/useImagePreviewUrl.js';
import '../../_common/js/upload/utils.js';
import '../../_common/js/log/log.js';
import '../../checkbox/constants.js';
import '../../checkbox/store.js';
import '@babel/runtime/helpers/classCallCheck';
import '@babel/runtime/helpers/createClass';
import '../../checkbox/hooks/useKeyboardEvent.js';
import '../../_common/js/common.js';
import '../../checkbox/checkbox-group-props.js';
import './style/css.js';
import '../../checkbox/type.js';
import '../../loading/index.js';
import '../../loading/directive.js';
import '../../loading/plugin.js';
import '../../loading/loading.js';
import '../../loading/icon/gradient.js';
import '../../_common/js/loading/circle-adapter.js';
import '../../_common/js/utils/setStyle.js';
import '../../_common/js/utils/helper.js';
import '../../config-provider/config-receiver.js';
import '../../utils/mixins.js';
import '../../utils/dom.js';
import 'raf';
import '../../utils/easing.js';
import '../../utils/transfer-dom.js';
import '../../loading/props.js';
import '../../config.js';
import '../../loading/type.js';
import '../../_common/js/tree/tree-node.js';
import '@babel/runtime/helpers/asyncToGenerator';
import '@babel/runtime/regenerator';
import '../../_common/js/tree/tree-node-model.js';
import '../../_common/js/log/index.js';

function useDragHandle(state) {
  var props = state.props,
    context = state.context,
    scope = state.scope,
    store = state.store;
  var dragNode = null;
  var handleDragStart = function handleDragStart(state2) {
    var dragEvent = state2.dragEvent,
      node = state2.node;
    dragNode = node;
    var ctx = {
      node: node.getModel(),
      e: dragEvent
    };
    emitEvent(props, context, "drag-start", ctx);
  };
  var handleDragEnd = function handleDragEnd(state2) {
    var dragEvent = state2.dragEvent,
      node = state2.node;
    dragNode = node;
    var ctx = {
      node: node.getModel(),
      e: dragEvent
    };
    emitEvent(props, context, "drag-end", ctx);
  };
  var handleDragOver = function handleDragOver(state2) {
    var dragEvent = state2.dragEvent,
      node = state2.node;
    var ctx = {
      node: node.getModel(),
      e: dragEvent
    };
    emitEvent(props, context, "drag-over", ctx);
  };
  var handleDragLeave = function handleDragLeave(state2) {
    var dragEvent = state2.dragEvent,
      node = state2.node;
    var ctx = {
      node: node.getModel(),
      e: dragEvent
    };
    emitEvent(props, context, "drag-leave", ctx);
  };
  var handleDrop = function handleDrop(state2) {
    var _props$allowDrop;
    var dragEvent = state2.dragEvent,
      node = state2.node,
      dropPosition = state2.dropPosition;
    if (node.value === dragNode.value || node.getParents().some(function (_node) {
      return _node.value === dragNode.value;
    })) return;
    var ctx = {
      dropNode: node.getModel(),
      dragNode: dragNode.getModel(),
      dropPosition: dropPosition,
      e: dragEvent
    };
    if (((_props$allowDrop = props.allowDrop) === null || _props$allowDrop === void 0 ? void 0 : _props$allowDrop.call(props, ctx)) === false) return;
    var nodes = store.getNodes();
    nodes.some(function (_node) {
      if (_node.value === node.value) {
        if (dropPosition === DragPosition.Inside) {
          dragNode.appendTo(store, _node);
        } else if (dropPosition === DragPosition.Before) {
          node.insertBefore(dragNode);
        } else {
          node.insertAfter(dragNode);
        }
        return true;
      }
      return false;
    });
    emitEvent(props, context, "drop", ctx);
  };
  var drag = {
    handleDragStart: handleDragStart,
    handleDragEnd: handleDragEnd,
    handleDragOver: handleDragOver,
    handleDragLeave: handleDragLeave,
    handleDrop: handleDrop
  };
  scope.drag = drag;
  return {
    drag: drag
  };
}

export { useDragHandle as default };
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