import { Widget } from '@theia/core/shared/@lumino/widgets';
import URI from '@theia/core/lib/common/uri';
import { MaybePromise } from '@theia/core/lib/common/types';
import { QuickInputService } from '@theia/core/lib/browser';
import { ApplicationShell } from '@theia/core/lib/browser/shell';
import { Command, CommandContribution, CommandRegistry } from '@theia/core/lib/common/command';
import { MenuContribution, MenuModelRegistry } from '@theia/core/lib/common/menu';
import { TabBarToolbarContribution, TabBarToolbarRegistry } from '@theia/core/lib/browser/shell/tab-bar-toolbar';
import { NavigatableWidget, NavigatableWidgetOpenHandler } from '@theia/core/lib/browser/navigatable';
import { OpenerService } from '@theia/core/lib/browser/opener-service';
import { LabelProvider } from '@theia/core/lib/browser/label-provider';
import { FrontendApplicationContribution } from '@theia/core/lib/browser/frontend-application-contribution';
import { WidgetOpenerOptions } from '@theia/core/lib/browser/widget-open-handler';
import { MiniBrowserService } from '../common/mini-browser-service';
import { MiniBrowser, MiniBrowserProps } from './mini-browser';
import { LocationMapperService } from './location-mapper-service';
export declare namespace MiniBrowserCommands {
    const PREVIEW_CATEGORY = "Preview";
    const PREVIEW_CATEGORY_KEY: string;
    const PREVIEW: Command;
    const OPEN_SOURCE: Command;
    const OPEN_URL: Command;
}
/**
 * Further options for opening a new `Mini Browser` widget.
 */
export interface MiniBrowserOpenerOptions extends WidgetOpenerOptions, MiniBrowserProps {
    /**
     * Controls how the mini-browser widget should be opened.
     * - `source`: editable source.
     * - `preview`: rendered content of the source.
     */
    openFor?: 'source' | 'preview';
}
export declare class MiniBrowserOpenHandler extends NavigatableWidgetOpenHandler<MiniBrowser> implements FrontendApplicationContribution, CommandContribution, MenuContribution, TabBarToolbarContribution {
    static PREVIEW_URI: URI;
    /**
     * Instead of going to the backend with each file URI to ask whether it can handle the current file or not,
     * we have this map of extension and priority pairs that we populate at application startup.
     * The real advantage of this approach is the following: [Lumino cannot run async code when invoking `isEnabled`/`isVisible`
     * for the command handlers](https://github.com/eclipse-theia/theia/issues/1958#issuecomment-392829371)
     * so the menu item would be always visible for the user even if the file type cannot be handled eventually.
     * Hopefully, we could get rid of this hack once we have migrated the existing Lumino code to [React](https://github.com/eclipse-theia/theia/issues/1915).
     */
    protected readonly supportedExtensions: Map<string, number>;
    readonly id: string;
    readonly label: string;
    protected readonly openerService: OpenerService;
    protected readonly labelProvider: LabelProvider;
    protected readonly quickInputService: QuickInputService;
    protected readonly miniBrowserService: MiniBrowserService;
    protected readonly locationMapperService: LocationMapperService;
    onStart(): void;
    canHandle(uri: URI, options?: MiniBrowserOpenerOptions): number;
    open(uri: URI, options?: MiniBrowserOpenerOptions): Promise<MiniBrowser>;
    protected getOrCreateWidget(uri: URI, options?: MiniBrowserOpenerOptions): Promise<MiniBrowser>;
    protected options(uri?: URI, options?: MiniBrowserOpenerOptions): Promise<MiniBrowserOpenerOptions & {
        widgetOptions: ApplicationShell.WidgetOptions;
    }>;
    protected resetBackground(uri: URI): MaybePromise<boolean>;
    protected defaultOptions(): Promise<MiniBrowserOpenerOptions & {
        widgetOptions: ApplicationShell.WidgetOptions;
    }>;
    registerCommands(commands: CommandRegistry): void;
    registerMenus(menus: MenuModelRegistry): void;
    registerToolbarItems(toolbar: TabBarToolbarRegistry): void;
    protected canPreviewWidget(widget?: Widget): boolean;
    protected getUriToPreview(widget?: Widget): URI | undefined;
    protected getWidgetToPreview(widget?: Widget): NavigatableWidget | undefined;
    protected preview(widget?: Widget): Promise<void>;
    protected openSource(ref?: Widget): Promise<void>;
    protected getSourceUri(ref?: Widget): URI | undefined;
    protected openUrl(arg?: string): Promise<void>;
    openPreview(startPage: string): Promise<MiniBrowser>;
    protected getOpenPreviewProps(startPage: string): Promise<MiniBrowserOpenerOptions>;
}
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