import type { EditorPlugin, IEditor, PluginEvent } from 'roosterjs-content-model-types';
/**
 * Options for DragAndDrop plugin
 */
export interface DragAndDropOptions {
    /**
     * Forbidden elements that cannot be dropped in the editor
     * @default ['iframe']
     */
    forbiddenElements?: string[];
}
/**
 * DragAndDrop plugin, handles ContentChanged event when change source is "Drop"
 * to sanitize dropped content, similar to how PastePlugin sanitizes pasted content.
 */
export declare class DragAndDropPlugin implements EditorPlugin {
    private editor;
    private forbiddenElements;
    private isInternalDragging;
    private disposer;
    /**
     * Construct a new instance of DragAndDropPlugin
     */
    constructor(options?: DragAndDropOptions);
    /**
     * Get name of this plugin
     */
    getName(): string;
    /**
     * The first method that editor will call to a plugin when editor is initializing.
     * It will pass in the editor instance, plugin should take this chance to save the
     * editor reference so that it can call to any editor method or format API later.
     * @param editor The editor object
     */
    initialize(editor: IEditor): void;
    /**
     * The last method that editor will call to a plugin before it is disposed.
     * Plugin can take this chance to clear the reference to editor. After this method is
     * called, plugin should not call to any editor method since it will result in error.
     */
    dispose(): void;
    /**
     * Core method for a plugin. Once an event happens in editor, editor will call this
     * method of each plugin to handle the event as long as the event is not handled
     * exclusively by another plugin.
     * @param event The event to handle:
     */
    onPluginEvent(event: PluginEvent): void;
}