@atlaskit/editor-plugin-toolbar-lists-indentation/dist/es2019/pm-plugins/indentation-buttons.js

Toolbar lists and indentation plugin for @atlaskit/editor-core

import { MAX_INDENTATION_LEVEL } from '@atlaskit/editor-common/indentation';
import { getListItemAttributes } from '@atlaskit/editor-common/lists';
import { hasParentNodeOfType } from '@atlaskit/editor-prosemirror/utils';
export function getIndentationButtonsState(editorState, allowHeadingAndParagraphIndentation, taskDecisionState, indentationState, isInsideListItem) {
  var _indentationState$isI;
  const state = {
    indentDisabled: true,
    outdentDisabled: true,
    node: null
  };
  const {
    selection
  } = editorState;

  // Handle bullet and numbered lists seperately as they do
  // not use the indentation mark.
  // Check for lists before paragraphs and headings in case
  // the selection is in a list nested in a layout column.
  if (isInsideListItem !== null && isInsideListItem !== void 0 && isInsideListItem(editorState.tr)) {
    const {
      indentLevel,
      itemIndex
    } = getListItemAttributes(selection.$head);
    return {
      // List indent levels are zero indexed so we need to subtract 1
      indentDisabled: itemIndex === 0 || indentLevel >= MAX_INDENTATION_LEVEL - 1,
      outdentDisabled: false,
      node: 'list'
    };
  }

  // Handle tasks seperately as they do not use the indentation mark
  // and have different behaviour for outdent compared to lists
  if (taskDecisionState !== null && taskDecisionState !== void 0 && taskDecisionState.isInsideTask) {
    return {
      indentDisabled: taskDecisionState.indentDisabled,
      outdentDisabled: taskDecisionState.outdentDisabled,
      node: 'taskList'
    };
  }
  const isTopLevelParagraphOrHeading = selection.$from.depth === 1;
  const isInLayoutNode = hasParentNodeOfType(editorState.schema.nodes.layoutColumn)(selection) &&
  // depth of non-nested paragraphs and headings in layouts will always be 3
  selection.$from.depth === 3;
  if (allowHeadingAndParagraphIndentation && ((_indentationState$isI = indentationState === null || indentationState === void 0 ? void 0 : indentationState.isIndentationAllowed) !== null && _indentationState$isI !== void 0 ? _indentationState$isI : false) && (isTopLevelParagraphOrHeading || isInLayoutNode) && (indentationState === null || indentationState === void 0 ? void 0 : indentationState.indentDisabled) !== undefined && (indentationState === null || indentationState === void 0 ? void 0 : indentationState.outdentDisabled) !== undefined) {
    return {
      indentDisabled: indentationState.indentDisabled,
      outdentDisabled: indentationState.outdentDisabled,
      node: 'paragraph_heading'
    };
  }
  return state;
}