import { OverlayRef } from '@angular/cdk/overlay';
import { InjectionToken, OnDestroy, TemplateRef } from '@angular/core';
import { KbqDefaultSizes } from '@koobiq/components/core';
import { KbqEmptyState } from '@koobiq/components/empty-state';
import { KbqMultipleFileUploadComponent } from './multiple-file-upload.component';
import { KbqDrop } from './primitives';
import { KbqSingleFileUploadComponent } from './single-file-upload.component';
import * as i0 from "@angular/core";
import * as i1 from "@angular/cdk/a11y";
/** Dropzone overlay content configuration. */
export type KbqDropzoneData = Partial<{
    /** Optional caption text displayed below the title. */
    caption: string;
    /** Visual size of the dropzone empty state content. */
    size: KbqDefaultSizes;
    /** Title text displayed in the dropzone; falls back to localized default. */
    title: string;
    /** Whether focus should be automatically captured when the overlay opens. */
    autoCapture: boolean;
}>;
/** Injection token that can be used to access the data that was passed in to a modal. */
export declare const KBQ_DROPZONE_DATA: InjectionToken<Partial<{
    /** Optional caption text displayed below the title. */
    caption: string;
    /** Visual size of the dropzone empty state content. */
    size: KbqDefaultSizes;
    /** Title text displayed in the dropzone; falls back to localized default. */
    title: string;
    /** Whether focus should be automatically captured when the overlay opens. */
    autoCapture: boolean;
}>>;
/**
 * Determines if a mouse event occurred outside the viewport boundaries.
 * @docs-private
 */
export declare const isOutsideViewport: ({ event, innerWidth, innerHeight, xAxisMinThreshold, yAxisMinThreshold }: {
    event: MouseEvent;
    innerWidth: number;
    innerHeight: number;
    xAxisMinThreshold: number;
    yAxisMinThreshold: number;
}) => boolean;
/**
 * Service that provides full-screen drag-and-drop overlay functionality.
 */
export declare class KbqFullScreenDropzoneService extends KbqDrop implements OnDestroy {
    /** Completely terminates all subscriptions when emitted */
    private readonly dropAbort;
    private readonly overlay;
    private readonly window;
    private readonly injector;
    private readonly ngZone;
    private overlayRef?;
    constructor();
    ngOnDestroy(): void;
    /**
     * Initializes drag-and-drop event listeners on the document body.
     * @param config - Dropzone configuration
     */
    init(config?: KbqDropzoneData): void;
    /** Stops all drag-and-drop event listeners and cleans up subscriptions. */
    stop(): void;
    /**
     * Opens the dropzone overlay.
     * @param config - Dropzone configuration
     */
    open(config?: KbqDropzoneData): void;
    /** Closes and disposes the overlay. */
    close(): void;
    /** @docs-private */
    onDrop(event: DragEvent): void;
    /** @docs-private */
    protected createOverlay(): OverlayRef;
    /** @see https://bugs.webkit.org/show_bug.cgi?id=66547 */
    private onDragLeave;
    static ɵfac: i0.ɵɵFactoryDeclaration<KbqFullScreenDropzoneService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<KbqFullScreenDropzoneService>;
}
/**
 * Directive that turns an element into a local drag-and-drop zone.
 *
 * Displays an overlay over the host element on drag enter, handles drag events,
 * and emits dropped files to a connected file upload component.
 */
export declare class KbqLocalDropzone extends KbqDrop {
    /** File upload component to connect dropped files to */
    readonly connectedTo: import("@angular/core").InputSignal<KbqMultipleFileUploadComponent | KbqSingleFileUploadComponent | undefined>;
    private readonly elementRef;
    private readonly rects;
    private readonly overlay;
    private readonly viewContainerRef;
    private readonly injector;
    private readonly ngZone;
    private readonly destroyRef;
    private overlayRef?;
    constructor();
    /** Opens the dropzone overlay positioned over the host element. */
    open(config?: KbqDropzoneData): void;
    /** Closes and disposes the overlay. */
    close(): void;
    /** @docs-private */
    onDrop(event: DragEvent): void;
    /**
     * Initializes drag-and-drop event listeners on the overlay element.
     * Handles dragover, dragleave, and drop events to manage overlay state and file drops.
     */
    protected init(): void;
    /** Creates an overlay positioned and sized to match the host element. */
    protected createOverlay(): OverlayRef;
    private onDragLeave;
    static ɵfac: i0.ɵɵFactoryDeclaration<KbqLocalDropzone, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<KbqLocalDropzone, "[kbqLocalDropzone]", ["kbqLocalDropzone"], { "connectedTo": { "alias": "kbqConnectedTo"; "required": false; "isSignal": true; }; }, {}, never, never, true, never>;
}
/** Component that displays an empty state for file upload areas. */
export declare class KbqFileUploadEmptyState extends KbqEmptyState {
    /** Title text to display below the upload icon */
    title: import("@angular/core").InputSignal<string | undefined>;
    /** Caption text or template to display below the title */
    caption: import("@angular/core").InputSignal<string | TemplateRef<any> | undefined>;
    constructor();
    /** @docs-private */
    protected isTemplateRef(value: string | TemplateRef<any>): value is TemplateRef<any>;
    static ɵfac: i0.ɵɵFactoryDeclaration<KbqFileUploadEmptyState, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<KbqFileUploadEmptyState, "kbq-file-upload-empty-state", never, { "title": { "alias": "title"; "required": false; "isSignal": true; }; "caption": { "alias": "caption"; "required": false; "isSignal": true; }; }, {}, never, never, true, never>;
}
export declare class KbqDropzoneContent {
    /** @docs-private */
    protected readonly localeService: import("@koobiq/components/core").KbqLocaleService | null;
    /** @docs-private */
    protected readonly config: Partial<{
        /** Optional caption text displayed below the title. */
        caption: string;
        /** Visual size of the dropzone empty state content. */
        size: KbqDefaultSizes;
        /** Title text displayed in the dropzone; falls back to localized default. */
        title: string;
        /** Whether focus should be automatically captured when the overlay opens. */
        autoCapture: boolean;
    }> | null;
    private readonly trapFocus;
    private readonly localeId;
    constructor();
    /** @docs-private */
    protected readonly title: import("@angular/core").Signal<any>;
    static ɵfac: i0.ɵɵFactoryDeclaration<KbqDropzoneContent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<KbqDropzoneContent, "kbq-dropzone-content", never, {}, {}, never, never, true, [{ directive: typeof i1.CdkTrapFocus; inputs: {}; outputs: {}; }]>;
}