import { DocumentEditorContainer } from '../document-editor-container';
import { L10n } from '@syncfusion/ej2-base';
import { Ribbon as EJ2Ribbon, RibbonTabModel, RibbonGroupModel, RibbonItemModel, BackStageMenuModel } from '@syncfusion/ej2-ribbon';
import { Dictionary, FileMenuItemType } from '../../document-editor/base/index';
import { RibbonTabManager } from './ribbon-base/ribbon-tab-manager';
import { RibbonContextualTabManager } from './ribbon-base/ribbon-contextual-tab-manager';
import { RibbonStateManager } from './ribbon-base/ribbon-state-manager';
import { RibbonEventManager } from './ribbon-base/ribbon-event-manager';
import { MenuItemModel } from '@syncfusion/ej2-navigations';
import { RibbonTabType } from '../../document-editor/base/ribbon-types';
import { RibbonGroupInfo, RibbonItemInfo } from '../helper/ribbon-interfaces';
import { IToolbarHandler } from '../helper/toolbar-handler';
/**
 * Ribbon class for DocumentEditorContainer
 */
export declare class Ribbon implements IToolbarHandler {
    /**
     * @private
     */
    container: DocumentEditorContainer;
    /**
     * @private
     */
    ribbonElement: HTMLElement;
    /**
     * @private
     */
    localObj: L10n;
    /**
     * @private
     */
    ribbon: EJ2Ribbon;
    /**
     * @private
     */
    tabManager: RibbonTabManager;
    /**
     * @private
     */
    contextualTabManager: RibbonContextualTabManager;
    /**
     * @private
     */
    stateManager: RibbonStateManager;
    /**
     * @private
     */
    eventManager: RibbonEventManager;
    /**
     * @private
     */
    numericTextBoxCollection: Dictionary<string, string>;
    /**
     * @private
     */
    backstageMenu: BackStageMenuModel;
    /**
     * @private
     */
    fileMenuItems: (FileMenuItemType | MenuItemModel)[];
    /**
     * @private
     */
    previousContext: string;
    /**
     * Gets the document editor instance
     * @private
     * @returns {DocumentEditor} The document editor instance
     */
    private readonly documentEditor;
    /**
     * Constructor for the Ribbon class
     * @param {DocumentEditorContainer} container - Specifies the document editor container
     * @private
     */
    constructor(container: DocumentEditorContainer);
    /**
     * Gets the module name
     * @returns {string} Module name
     * @private
     */
    private getModuleName;
    /**
     * Initializes the ribbon component
     * @returns {void}
     * @private
     */
    initializeRibbon(): void;
    private initializeInternal;
    private createRibbonElement;
    private renderRibbon;
    /**
     * Adds a new tab to the ribbon UI.
     * @param {RibbonTabModel} tab - The ribbon tab model to add.
     * @param {string | RibbonTabType} insertBefore - Specifies the existing tab ID or type before which the new tab will be inserted.
     * If not specified, the new tab will be inserted at the end of the ribbon.
     * @returns {void}
     * @public
     */
    addTab(tab: RibbonTabModel, insertBefore?: string | RibbonTabType): void;
    /**
     * Adds a new item to an existing group in the ribbon.
     * @param {RibbonGroupInfo} groupId - The information about the group to add the item to.
     * @param {RibbonItemModel} item - The ribbon item model to add.
     * @param {string | number} insertBefore - Specifies the existing item ID or index before which the new item will be inserted.
     * If a string is provided, it's treated as an item ID. If a number is provided, it's treated as an item index.
     * If not specified, the new item will be inserted at the end of the group.
     * @returns {void}
     * @public
     */
    addItem(groupId: RibbonGroupInfo, item: RibbonItemModel, insertBefore?: string | number): void;
    /**
     * Adds a new group to an existing tab in the ribbon.
     * @param {string | RibbonTabType} tabId - The ID or type of the tab to add the group to.
     * @param {RibbonGroupModel} group - The ribbon group model to add.
     * @param {number} insertBefore - Specifies the existing group index before which the new group will be inserted. If not specified, the new group will be inserted at the end.
     * @returns {void}
     * @public
     */
    addGroup(tabId: string | RibbonTabType, group: RibbonGroupModel, insertBefore?: number): void;
    /**
     * Shows or hides a specific tab in the ribbon.
     * @param {string | RibbonTabType} tabId - The ID or type of the tab to show or hide.
     * @param {boolean} show - Whether to show (true) or hide (false) the tab.
     * @returns {void}
     * @public
     */
    showTab(tabId: string | RibbonTabType, show: boolean): void;
    /**
     * Shows or hides a specific group in a tab.
     * @param {string | RibbonGroupInfo} groupId - The ID of the group or group info to show or hide.
     * @param {boolean} show - Whether to show (true) or hide (false) the group.
     * @returns {void}
     * @public
     */
    showGroup(groupId: string | RibbonGroupInfo, show: boolean): void;
    /**
     * Shows or hides specific items in the ribbon.
     * @param {string | RibbonItemInfo} itemId - The ID of the item or item information object to show or hide.
     * If a string is provided, it's treated as an item ID. If a RibbonItemInfo object is provided,
     * it will show/hide items based on the specified tab, group, and item indexes.
     * @param {boolean} show - Whether to show (true) or hide (false) the item(s).
     * @returns {void}
     * @public
     */
    showItems(itemId: string | RibbonItemInfo, show: boolean): void;
    private showItemInternal;
    /**
     * Enables or disables specific items in the ribbon.
     * @param {string | RibbonItemInfo} itemId - The ID of the item or item information object to show or hide.
     * If a string is provided, it's treated as an item ID. If a RibbonItemInfo object is provided,
     * it will enable/disable items based on the specified tab, group, and item indexes.
     * @param {boolean} enable - Whether to enable (true) or disable (false) the items.
     * @returns {void}
     * @public
     */
    enableItems(itemId: string | RibbonItemInfo, enable: boolean): void;
    private enableItemInternal;
    /**
     * Update ribbon state based on current selection
     * @returns {void}
     * @private
     */
    updateRibbonState(): void;
    /**
     * Updates the contextual tab based on the current selection context
     * @returns {void}
     * @private
     */
    updateContextualTab(): void;
    /**
     * Updates the zoom button state when zoom factor changes
     * @returns {void}
     * @private
     */
    onZoomFactorChange(): void;
    /**
     * Refresh the ribbon
     * @returns {void}
     * @private
     */
    refresh(): void;
    /**
     * @returns {void}
     * @private
     */
    onContentChange(): void;
    /**
     * @returns {void}
     * @private
     */
    onDocumentChange(): void;
    /**
     * @param {boolean} isToggle - toggle track changes.
     * @returns {void}
     * @private
     */
    initialize(isToggle?: boolean): void;
    /**
     * @param {boolean} restrictEditing - Whether to restrict editing or not
     * @returns {void}
     * @private
     */
    restrictEditingToggleHelper(restrictEditing: boolean): void;
    private onRibbonContentChange;
    /**
     * @param {boolean} enable - Emable/Disable insert comment toolbar item.
     * @returns {void}
     * @private
     */
    enableDisableInsertComment(enable: boolean): void;
    private onRibbonDocumentChange;
    /**
     * Enable or disable ribbon items based on protection state
     * @param {boolean} enable - Whether to enable or disable items
     * @returns {void}
     * @private
     */
    enableDisableRibbonItem(enable: boolean): void;
    /**
     * @returns {void}
     * @private
     */
    toggleTrackChanges(): void;
    /**
     * Destroy the ribbon instance
     * @returns {void}
     * @private
     */
    destroy(): void;
}