"use strict";
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
  // If the importer is in node compatibility mode or this is not an ESM
  // file that has been converted to a CommonJS file using a Babel-
  // compatible transform (i.e. "__esModule" has not been set), then set
  // "default" to the CommonJS "module.exports" for node compatibility.
  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// packages/block-editor/src/components/list-view/index.js
var list_view_exports = {};
__export(list_view_exports, {
  BLOCK_LIST_ITEM_HEIGHT: () => BLOCK_LIST_ITEM_HEIGHT,
  PrivateListView: () => PrivateListView,
  default: () => list_view_default
});
module.exports = __toCommonJS(list_view_exports);
var import_clsx = __toESM(require("clsx"));
var import_compose = require("@wordpress/compose");
var import_components = require("@wordpress/components");
var import_data = require("@wordpress/data");
var import_deprecated = __toESM(require("@wordpress/deprecated"));
var import_element = require("@wordpress/element");
var import_i18n = require("@wordpress/i18n");
var import_branch = __toESM(require("./branch"));
var import_context = require("./context");
var import_drop_indicator = __toESM(require("./drop-indicator"));
var import_use_block_selection = __toESM(require("./use-block-selection"));
var import_use_list_view_block_indexes = __toESM(require("./use-list-view-block-indexes"));
var import_use_list_view_client_ids = __toESM(require("./use-list-view-client-ids"));
var import_use_list_view_collapse_items = __toESM(require("./use-list-view-collapse-items"));
var import_use_list_view_drop_zone = __toESM(require("./use-list-view-drop-zone"));
var import_use_list_view_expand_selected_item = __toESM(require("./use-list-view-expand-selected-item"));
var import_store = require("../../store");
var import_block_settings_dropdown = require("../block-settings-menu/block-settings-dropdown");
var import_utils = require("./utils");
var import_use_clipboard_handler = __toESM(require("./use-clipboard-handler"));
var import_jsx_runtime = require("react/jsx-runtime");
var expanded = (state, action) => {
  if (action.type === "clear") {
    return {};
  }
  if (Array.isArray(action.clientIds)) {
    return {
      ...state,
      ...action.clientIds.reduce(
        (newState, id) => ({
          ...newState,
          [id]: action.type === "expand"
        }),
        {}
      )
    };
  }
  return state;
};
var BLOCK_LIST_ITEM_HEIGHT = 32;
function ListViewComponent({
  id,
  blocks,
  dropZoneElement,
  showBlockMovers = false,
  isExpanded = false,
  showAppender = false,
  blockSettingsMenu: BlockSettingsMenu = import_block_settings_dropdown.BlockSettingsDropdown,
  rootClientId,
  description,
  onSelect,
  additionalBlockContent: AdditionalBlockContent
}, ref) {
  if (blocks) {
    (0, import_deprecated.default)(
      "`blocks` property in `wp.blockEditor.__experimentalListView`",
      {
        since: "6.3",
        alternative: "`rootClientId` property"
      }
    );
  }
  const instanceId = (0, import_compose.useInstanceId)(ListViewComponent);
  const { clientIdsTree, draggedClientIds, selectedClientIds } = (0, import_use_list_view_client_ids.default)({ blocks, rootClientId });
  const blockIndexes = (0, import_use_list_view_block_indexes.default)(clientIdsTree);
  const { getBlock } = (0, import_data.useSelect)(import_store.store);
  const { visibleBlockCount } = (0, import_data.useSelect)(
    (select) => {
      const { getGlobalBlockCount, getClientIdsOfDescendants } = select(import_store.store);
      const draggedBlockCount = draggedClientIds?.length > 0 ? getClientIdsOfDescendants(draggedClientIds).length + 1 : 0;
      return {
        visibleBlockCount: getGlobalBlockCount() - draggedBlockCount
      };
    },
    [draggedClientIds]
  );
  const { updateBlockSelection } = (0, import_use_block_selection.default)();
  const [expandedState, setExpandedState] = (0, import_element.useReducer)(expanded, {});
  const [insertedBlock, setInsertedBlock] = (0, import_element.useState)(null);
  const { setSelectedTreeId } = (0, import_use_list_view_expand_selected_item.default)({
    firstSelectedBlockClientId: selectedClientIds[0],
    setExpandedState
  });
  const selectEditorBlock = (0, import_element.useCallback)(
    /**
     * @param {MouseEvent | KeyboardEvent | undefined} event
     * @param {string}                                 blockClientId
     * @param {null | undefined | -1 | 1}              focusPosition
     */
    (event, blockClientId, focusPosition) => {
      updateBlockSelection(event, blockClientId, null, focusPosition);
      setSelectedTreeId(blockClientId);
      if (onSelect) {
        onSelect(getBlock(blockClientId));
      }
    },
    [setSelectedTreeId, updateBlockSelection, onSelect, getBlock]
  );
  const { ref: dropZoneRef, target: blockDropTarget } = (0, import_use_list_view_drop_zone.default)({
    dropZoneElement,
    expandedState,
    setExpandedState
  });
  const elementRef = (0, import_element.useRef)();
  const clipBoardRef = (0, import_use_clipboard_handler.default)({
    selectBlock: selectEditorBlock
  });
  const treeGridRef = (0, import_compose.useMergeRefs)([
    clipBoardRef,
    elementRef,
    dropZoneRef,
    ref
  ]);
  (0, import_element.useEffect)(() => {
    if (selectedClientIds?.length) {
      (0, import_utils.focusListItem)(selectedClientIds[0], elementRef?.current);
    }
  }, []);
  const expand = (0, import_element.useCallback)(
    (clientId) => {
      if (!clientId) {
        return;
      }
      const clientIds = Array.isArray(clientId) ? clientId : [clientId];
      setExpandedState({ type: "expand", clientIds });
    },
    [setExpandedState]
  );
  const collapse = (0, import_element.useCallback)(
    (clientId) => {
      if (!clientId) {
        return;
      }
      setExpandedState({ type: "collapse", clientIds: [clientId] });
    },
    [setExpandedState]
  );
  const collapseAll = (0, import_element.useCallback)(() => {
    setExpandedState({ type: "clear" });
  }, [setExpandedState]);
  const expandRow = (0, import_element.useCallback)(
    (row) => {
      expand(row?.dataset?.block);
    },
    [expand]
  );
  const collapseRow = (0, import_element.useCallback)(
    (row) => {
      collapse(row?.dataset?.block);
    },
    [collapse]
  );
  const focusRow = (0, import_element.useCallback)(
    (event, startRow, endRow) => {
      if (event.shiftKey) {
        updateBlockSelection(
          event,
          startRow?.dataset?.block,
          endRow?.dataset?.block
        );
      }
    },
    [updateBlockSelection]
  );
  (0, import_use_list_view_collapse_items.default)({
    collapseAll,
    expand
  });
  const firstDraggedBlockClientId = draggedClientIds?.[0];
  const { blockDropTargetIndex, blockDropPosition, firstDraggedBlockIndex } = (0, import_element.useMemo)(() => {
    let _blockDropTargetIndex, _firstDraggedBlockIndex;
    if (blockDropTarget?.clientId) {
      const foundBlockIndex = blockIndexes[blockDropTarget.clientId];
      _blockDropTargetIndex = foundBlockIndex === void 0 || blockDropTarget?.dropPosition === "top" ? foundBlockIndex : foundBlockIndex + 1;
    } else if (blockDropTarget === null) {
      _blockDropTargetIndex = null;
    }
    if (firstDraggedBlockClientId) {
      const foundBlockIndex = blockIndexes[firstDraggedBlockClientId];
      _firstDraggedBlockIndex = foundBlockIndex === void 0 || blockDropTarget?.dropPosition === "top" ? foundBlockIndex : foundBlockIndex + 1;
    }
    return {
      blockDropTargetIndex: _blockDropTargetIndex,
      blockDropPosition: blockDropTarget?.dropPosition,
      firstDraggedBlockIndex: _firstDraggedBlockIndex
    };
  }, [blockDropTarget, blockIndexes, firstDraggedBlockClientId]);
  const contextValue = (0, import_element.useMemo)(
    () => ({
      blockDropPosition,
      blockDropTargetIndex,
      blockIndexes,
      draggedClientIds,
      expandedState,
      expand,
      firstDraggedBlockIndex,
      collapse,
      collapseAll,
      BlockSettingsMenu,
      listViewInstanceId: instanceId,
      AdditionalBlockContent,
      insertedBlock,
      setInsertedBlock,
      treeGridElementRef: elementRef,
      rootClientId
    }),
    [
      blockDropPosition,
      blockDropTargetIndex,
      blockIndexes,
      draggedClientIds,
      expandedState,
      expand,
      firstDraggedBlockIndex,
      collapse,
      collapseAll,
      BlockSettingsMenu,
      instanceId,
      AdditionalBlockContent,
      insertedBlock,
      setInsertedBlock,
      rootClientId
    ]
  );
  const [fixedListWindow] = (0, import_compose.__experimentalUseFixedWindowList)(
    elementRef,
    BLOCK_LIST_ITEM_HEIGHT,
    visibleBlockCount,
    {
      // Ensure that the windowing logic is recalculated when the expanded state changes.
      // This is necessary because expanding a collapsed block in a short list view can
      // switch the list view to a tall list view with a scrollbar, and vice versa.
      // When this happens, the windowing logic needs to be recalculated to ensure that
      // the correct number of blocks are rendered, by rechecking for a scroll container.
      expandedState,
      useWindowing: true,
      windowOverscan: 40
    }
  );
  if (!clientIdsTree.length && !showAppender) {
    return null;
  }
  const describedById = description && `block-editor-list-view-description-${instanceId}`;
  return /* @__PURE__ */ (0, import_jsx_runtime.jsxs)(import_data.AsyncModeProvider, { value: true, children: [
    /* @__PURE__ */ (0, import_jsx_runtime.jsx)(
      import_drop_indicator.default,
      {
        draggedBlockClientId: firstDraggedBlockClientId,
        listViewRef: elementRef,
        blockDropTarget
      }
    ),
    description && /* @__PURE__ */ (0, import_jsx_runtime.jsx)(import_components.VisuallyHidden, { id: describedById, children: description }),
    /* @__PURE__ */ (0, import_jsx_runtime.jsx)(
      import_components.__experimentalTreeGrid,
      {
        id,
        className: (0, import_clsx.default)("block-editor-list-view-tree", {
          "is-dragging": draggedClientIds?.length > 0 && blockDropTargetIndex !== void 0
        }),
        "aria-label": (0, import_i18n.__)("Block navigation structure"),
        ref: treeGridRef,
        onCollapseRow: collapseRow,
        onExpandRow: expandRow,
        onFocusRow: focusRow,
        applicationAriaLabel: (0, import_i18n.__)("Block navigation structure"),
        "aria-describedby": describedById,
        style: {
          "--wp-admin--list-view-dragged-items-height": draggedClientIds?.length ? `${BLOCK_LIST_ITEM_HEIGHT * (draggedClientIds.length - 1)}px` : null
        },
        children: /* @__PURE__ */ (0, import_jsx_runtime.jsx)(import_context.ListViewContext.Provider, { value: contextValue, children: /* @__PURE__ */ (0, import_jsx_runtime.jsx)(
          import_branch.default,
          {
            blocks: clientIdsTree,
            parentId: rootClientId,
            selectBlock: selectEditorBlock,
            showBlockMovers,
            fixedListWindow,
            selectedClientIds,
            isExpanded,
            showAppender
          }
        ) })
      }
    )
  ] });
}
var PrivateListView = (0, import_element.forwardRef)(ListViewComponent);
var list_view_default = (0, import_element.forwardRef)((props, ref) => {
  return /* @__PURE__ */ (0, import_jsx_runtime.jsx)(
    PrivateListView,
    {
      ref,
      ...props,
      showAppender: false,
      rootClientId: null,
      onSelect: null,
      additionalBlockContent: null,
      blockSettingsMenu: void 0
    }
  );
});
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  BLOCK_LIST_ITEM_HEIGHT,
  PrivateListView
});
//# sourceMappingURL=index.js.map
