import { MainAreaWidget } from '@jupyterlab/apputils';
import { CodeEditor } from '@jupyterlab/codeeditor';
import { IChangedArgs } from '@jupyterlab/coreutils';
import { IModelDB } from '@jupyterlab/observables';
import { Contents } from '@jupyterlab/services';
import * as models from '@jupyterlab/shared-models';
import { ITranslator } from '@jupyterlab/translation';
import { PartialJSONValue } from '@lumino/coreutils';
import { ISignal } from '@lumino/signaling';
import { Widget } from '@lumino/widgets';
import { DocumentRegistry, IDocumentWidget } from './index';
/**
 * The default implementation of a document model.
 */
export declare class DocumentModel extends CodeEditor.Model implements DocumentRegistry.ICodeModel {
    /**
     * Construct a new document model.
     */
    constructor(languagePreference?: string, modelDB?: IModelDB);
    /**
     * A signal emitted when the document content changes.
     */
    get contentChanged(): ISignal<this, void>;
    /**
     * A signal emitted when the document state changes.
     */
    get stateChanged(): ISignal<this, IChangedArgs<any>>;
    /**
     * The dirty state of the document.
     */
    get dirty(): boolean;
    set dirty(newValue: boolean);
    /**
     * The read only state of the document.
     */
    get readOnly(): boolean;
    set readOnly(newValue: boolean);
    /**
     * The default kernel name of the document.
     *
     * #### Notes
     * This is a read-only property.
     */
    get defaultKernelName(): string;
    /**
     * The default kernel language of the document.
     *
     * #### Notes
     * This is a read-only property.
     */
    get defaultKernelLanguage(): string;
    /**
     * Serialize the model to a string.
     */
    toString(): string;
    /**
     * Deserialize the model from a string.
     *
     * #### Notes
     * Should emit a [contentChanged] signal.
     */
    fromString(value: string): void;
    /**
     * Serialize the model to JSON.
     */
    toJSON(): PartialJSONValue;
    /**
     * Deserialize the model from JSON.
     *
     * #### Notes
     * Should emit a [contentChanged] signal.
     */
    fromJSON(value: PartialJSONValue): void;
    /**
     * Initialize the model with its current state.
     */
    initialize(): void;
    /**
     * Trigger a state change signal.
     */
    protected triggerStateChange(args: IChangedArgs<any>): void;
    /**
     * Trigger a content changed signal.
     */
    protected triggerContentChange(): void;
    private _onStateChanged;
    /**
     * The shared notebook model.
     */
    readonly sharedModel: models.ISharedFile;
    private _defaultLang;
    private _readOnly;
    private _contentChanged;
    private _stateChanged;
}
/**
 * An implementation of a model factory for text files.
 */
export declare class TextModelFactory implements DocumentRegistry.CodeModelFactory {
    /**
     * The name of the model type.
     *
     * #### Notes
     * This is a read-only property.
     */
    get name(): string;
    /**
     * The type of the file.
     *
     * #### Notes
     * This is a read-only property.
     */
    get contentType(): Contents.ContentType;
    /**
     * The format of the file.
     *
     * This is a read-only property.
     */
    get fileFormat(): Contents.FileFormat;
    /**
     * Get whether the model factory has been disposed.
     */
    get isDisposed(): boolean;
    /**
     * Dispose of the resources held by the model factory.
     */
    dispose(): void;
    /**
     * Create a new model.
     *
     * @param languagePreference - An optional kernel language preference.
     * @param modelDB - An optional modelDB.
     * @param isInitialized - An optional flag to check if the model is initialized.
     *
     * @returns A new document model.
     */
    createNew(languagePreference?: string, modelDB?: IModelDB, isInitialized?: boolean): DocumentRegistry.ICodeModel;
    /**
     * Get the preferred kernel language given a file path.
     */
    preferredLanguage(path: string): string;
    private _isDisposed;
}
/**
 * An implementation of a model factory for base64 files.
 */
export declare class Base64ModelFactory extends TextModelFactory {
    /**
     * The name of the model type.
     *
     * #### Notes
     * This is a read-only property.
     */
    get name(): string;
    /**
     * The type of the file.
     *
     * #### Notes
     * This is a read-only property.
     */
    get contentType(): Contents.ContentType;
    /**
     * The format of the file.
     *
     * This is a read-only property.
     */
    get fileFormat(): Contents.FileFormat;
}
/**
 * The default implementation of a widget factory.
 */
export declare abstract class ABCWidgetFactory<T extends IDocumentWidget, U extends DocumentRegistry.IModel = DocumentRegistry.IModel> implements DocumentRegistry.IWidgetFactory<T, U> {
    /**
     * Construct a new `ABCWidgetFactory`.
     */
    constructor(options: DocumentRegistry.IWidgetFactoryOptions<T>);
    /**
     * A signal emitted when a widget is created.
     */
    get widgetCreated(): ISignal<DocumentRegistry.IWidgetFactory<T, U>, T>;
    /**
     * Get whether the model factory has been disposed.
     */
    get isDisposed(): boolean;
    /**
     * Dispose of the resources used by the document manager.
     */
    dispose(): void;
    /**
     * Whether the widget factory is read only.
     */
    get readOnly(): boolean;
    /**
     * The name of the widget to display in dialogs.
     */
    get name(): string;
    /**
     * The file types the widget can view.
     */
    get fileTypes(): string[];
    /**
     * The registered name of the model type used to create the widgets.
     */
    get modelName(): string;
    /**
     * The file types for which the factory should be the default.
     */
    get defaultFor(): string[];
    /**
     * The file types for which the factory should be the default for
     * rendering a document model, if different from editing.
     */
    get defaultRendered(): string[];
    /**
     * Whether the widgets prefer having a kernel started.
     */
    get preferKernel(): boolean;
    /**
     * Whether the widgets can start a kernel when opened.
     */
    get canStartKernel(): boolean;
    /**
     * The application language translator.
     */
    get translator(): ITranslator;
    /**
     * Whether the kernel should be shutdown when the widget is closed.
     */
    get shutdownOnClose(): boolean;
    set shutdownOnClose(value: boolean);
    /**
     * Create a new widget given a document model and a context.
     *
     * #### Notes
     * It should emit the [widgetCreated] signal with the new widget.
     */
    createNew(context: DocumentRegistry.IContext<U>, source?: T): T;
    /**
     * Create a widget for a context.
     */
    protected abstract createNewWidget(context: DocumentRegistry.IContext<U>, source?: T): T;
    /**
     * Default factory for toolbar items to be added after the widget is created.
     */
    protected defaultToolbarFactory(widget: T): DocumentRegistry.IToolbarItem[];
    private _toolbarFactory;
    private _isDisposed;
    private _translator;
    private _name;
    private _readOnly;
    private _canStartKernel;
    private _shutdownOnClose;
    private _preferKernel;
    private _modelName;
    private _fileTypes;
    private _defaultFor;
    private _defaultRendered;
    private _widgetCreated;
}
/**
 * A document widget implementation.
 */
export declare class DocumentWidget<T extends Widget = Widget, U extends DocumentRegistry.IModel = DocumentRegistry.IModel> extends MainAreaWidget<T> implements IDocumentWidget<T, U> {
    constructor(options: DocumentWidget.IOptions<T, U>);
    /**
     * Set URI fragment identifier.
     */
    setFragment(fragment: string): void;
    /**
     * Handle a title change.
     */
    private _onTitleChanged;
    /**
     * Handle a path change.
     */
    private _onPathChanged;
    /**
     * Handle a change to the context model state.
     */
    private _onModelStateChanged;
    /**
     * Handle the dirty state of the context model.
     */
    private _handleDirtyState;
    readonly context: DocumentRegistry.IContext<U>;
}
export declare namespace DocumentWidget {
    interface IOptions<T extends Widget = Widget, U extends DocumentRegistry.IModel = DocumentRegistry.IModel> extends MainAreaWidget.IOptions<T> {
        context: DocumentRegistry.IContext<U>;
    }
    interface IOptionsOptionalContent<T extends Widget = Widget, U extends DocumentRegistry.IModel = DocumentRegistry.IModel> extends MainAreaWidget.IOptionsOptionalContent<T> {
        context: DocumentRegistry.IContext<U>;
        /**
         * The application language translator.
         */
        translator?: ITranslator;
    }
}