import { EditorState, Plugin, Transaction, Selection } from 'prosemirror-state';
import { EditorView } from '@tiptap/pm/view';
/**
 * @param newState
 * @returns
 * handleZeroWidthCharLogic 用于插入零宽字符或者删除多余的零宽字符
 * 为什么需要插入零宽字符？
 *  1. 保证自定义节点前后的光标高度正常，光标高度和内容相关，解决自定义节点是最后一个节点，
 *     光标高度会和自定义节点占据高度一致，和文本中光标高度不一致的问题
 *  2. 保证对于可编辑的 inline 节点（比如 input-slot），为最后一个节点时候，光标可以聚焦到该节点后
 *  Why do we need to insert zero-width characters?
 *  1. Ensure that the cursor height before and after the custom node is normal.
 *  The cursor height is related to the content. Solve the problem that when the custom node is the last node，
 *  the cursor height will be consistent with the height occupied by the custom node, and inconsistent with the cursor height in the text.
 *  2. Ensure that for an editable inline node (such as input-slot), when it is the last node, the cursor can focus after the node.
 */
export declare function handleZeroWidthCharLogic(newState: EditorState): Transaction;
export declare function ensureTrailingText(schema: any): Plugin<any>;
export declare function keyDownHandlePlugin(schema: any): Plugin<any>;
export declare function handlePasteLogic(view: EditorView, event: ClipboardEvent): boolean;
/**
 * specialPasteLogicForInputSlot 处理两种情况
 * 1. 如果是 parentNode 是 input-slot，当里面内容仅为零宽字符时候
 * 直接去掉零宽字符会导致 input-slot 消失，
 * 因此将此行为处理成获取文字部分，将零宽字符替换为文字内容
 * 2. 如果 parentNode 是 input-slot，选中 input-slot 中的所有文字并粘贴
 * 会导致 input-slot 被删除，因此需要处理成使用复制内容替换原有内容的
 * The `specialPasteLogicForInputSlot` function handles two cases.
 * 1. If the parentNode is input-slot, and its content consists of only zero-width characters...
 * Removing zero-width characters directly will cause the input slot to disappear.
 * Therefore, this behavior is processed by retrieving the text portion and replacing the zero-width characters with the text content.
 * 2. If the parentNode is input-slot, select all the text in the input-slot and paste it.
 * This will cause the input slot to be deleted, so it needs to be handled by replacing the original content with copied content.
 */
export declare function specialPasteLogicForInputSlot(event: ClipboardEvent, $from: any, tr: Transaction, dispatch: (tr: Transaction) => void, selection: Selection): boolean;
export declare function removeZeroWidthChar($from: any, tr: Transaction): boolean;
export declare function handleCompositionEndLogic(view: EditorView): void;
export declare function handleTextInputLogic(view: EditorView, from: number, to: number, text: string): boolean;