import { Direction } from '@angular/cdk/bidi';
import * as i0 from '@angular/core';
import { OnInit, OnChanges, ChangeDetectorRef, ElementRef, SimpleChanges, EventEmitter } from '@angular/core';
import { NzConfigService, NzConfigKey } from 'ng-zorro-antd/core/config';
import { OverlayRef } from '@angular/cdk/overlay';
import { AnimationEvent } from '@angular/animations';
import { CdkDragEnd } from '@angular/cdk/drag-drop';
import { SafeResourceUrl } from '@angular/platform-browser';

/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */

type ImageStatusType = 'error' | 'loading' | 'normal';
type NzImageUrl = string;
type NzImageScaleStep = number;
declare class NzImageDirective implements OnInit, OnChanges {
    private document;
    nzConfigService: NzConfigService;
    private elementRef;
    private nzImageService;
    protected cdr: ChangeDetectorRef;
    private directionality;
    private destroyRef;
    readonly _nzModuleName: NzConfigKey;
    nzSrc: string;
    nzSrcset: string;
    nzDisablePreview: boolean;
    nzFallback: string | null;
    nzPlaceholder: string | null;
    nzScaleStep: number | null;
    dir?: Direction;
    backLoadImage: HTMLImageElement;
    status: ImageStatusType;
    private backLoadDestroy$;
    private parentGroup;
    get previewable(): boolean;
    ngOnInit(): void;
    onPreview(): void;
    getElement(): ElementRef<HTMLImageElement>;
    ngOnChanges(changes: SimpleChanges): void;
    /**
     * use internal Image object handle fallback & placeholder
     *
     * @private
     */
    private backLoad;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzImageDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<NzImageDirective, "img[nz-image]", ["nzImage"], { "nzSrc": { "alias": "nzSrc"; "required": false; }; "nzSrcset": { "alias": "nzSrcset"; "required": false; }; "nzDisablePreview": { "alias": "nzDisablePreview"; "required": false; }; "nzFallback": { "alias": "nzFallback"; "required": false; }; "nzPlaceholder": { "alias": "nzPlaceholder"; "required": false; }; "nzScaleStep": { "alias": "nzScaleStep"; "required": false; }; }, {}, never, never, true, never>;
    static ngAcceptInputType_nzDisablePreview: unknown;
}

/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */

declare class NzImagePreviewOptions {
    nzKeyboard?: boolean;
    nzNoAnimation?: boolean;
    nzMaskClosable?: boolean;
    nzCloseOnNavigation?: boolean;
    nzZIndex?: number;
    nzZoom?: number;
    nzRotate?: number;
    nzFlipHorizontally?: boolean;
    nzFlipVertically?: boolean;
    nzScaleStep?: number;
    nzDirection?: Direction;
}
interface NzImage {
    src: string;
    srcset?: string;
    alt?: string;
    width?: string | number;
    height?: string | number;
}

/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */

interface NzImageContainerOperation {
    icon: string;
    type: string;
    rotate?: number;
    onClick(): void;
}
declare const NZ_DEFAULT_SCALE_STEP = 0.5;
declare class NzImagePreviewComponent implements OnInit {
    private document;
    private ngZone;
    private cdr;
    nzConfigService: NzConfigService;
    config: NzImagePreviewOptions;
    private sanitizer;
    private destroyRef;
    readonly _defaultNzZoom = 1;
    readonly _defaultNzScaleStep = 0.5;
    readonly _defaultNzRotate = 0;
    images: NzImage[];
    index: number;
    isDragging: boolean;
    visible: boolean;
    animationStateChanged: EventEmitter<AnimationEvent>;
    scaleStepMap: Map<NzImageUrl, NzImageScaleStep>;
    previewImageTransform: string;
    previewImageWrapperTransform: string;
    operations: NzImageContainerOperation[];
    zoomOutDisabled: boolean;
    position: {
        x: number;
        y: number;
    };
    previewRef: NzImagePreviewRef;
    closeClick: EventEmitter<void>;
    imageRef: ElementRef<HTMLImageElement>;
    imagePreviewWrapper: ElementRef<HTMLElement>;
    private zoom;
    private rotate;
    private scaleStep;
    private flipHorizontally;
    private flipVertically;
    get animationDisabled(): boolean;
    get maskClosable(): boolean;
    constructor();
    ngOnInit(): void;
    setImages(images: NzImage[], scaleStepMap?: Map<string, number>): void;
    switchTo(index: number): void;
    next(): void;
    prev(): void;
    markForCheck(): void;
    onClose(): void;
    onZoomIn(): void;
    onZoomOut(): void;
    onRotateRight(): void;
    onRotateLeft(): void;
    onSwitchLeft(event: MouseEvent): void;
    onSwitchRight(event: MouseEvent): void;
    onHorizontalFlip(): void;
    onVerticalFlip(): void;
    wheelZoomEventHandler(event: WheelEvent): void;
    onAnimationStart(event: AnimationEvent): void;
    onAnimationDone(event: AnimationEvent): void;
    onDragEnd(event: CdkDragEnd): void;
    sanitizerResourceUrl(url: string): SafeResourceUrl;
    private updatePreviewImageTransform;
    private updatePreviewImageWrapperTransform;
    private updateZoomOutDisabled;
    private handlerImageTransformationWhileZoomingWithMouse;
    private handleImageScaleWhileZoomingWithMouse;
    private isZoomedInWithMouseWheel;
    private reset;
    private reCenterImage;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzImagePreviewComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NzImagePreviewComponent, "nz-image-preview", ["nzImagePreview"], {}, {}, never, never, true, never>;
}

/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */

declare class NzImagePreviewRef {
    previewInstance: NzImagePreviewComponent;
    private config;
    private overlayRef;
    private destroy$;
    constructor(previewInstance: NzImagePreviewComponent, config: NzImagePreviewOptions, overlayRef: OverlayRef);
    switchTo(index: number): void;
    next(): void;
    prev(): void;
    close(): void;
}

interface NzImageService {
    preview(images: NzImage[], option?: NzImagePreviewOptions): NzImagePreviewRef;
}
declare class NzImageService {
    private overlay;
    private injector;
    private nzConfigService;
    private directionality;
    private display;
    private attachPreviewComponent;
    private createOverlay;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzImageService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NzImageService>;
}

/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */

declare const NZ_CONFIG_MODULE_NAME: NzConfigKey;

declare class NzImageGroupComponent {
    nzScaleStep: number | null;
    images: NzImageDirective[];
    addImage(image: NzImageDirective): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzImageGroupComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NzImageGroupComponent, "nz-image-group", ["nzImageGroup"], { "nzScaleStep": { "alias": "nzScaleStep"; "required": false; }; }, {}, never, ["*"], true, never>;
}

declare class NzImageModule {
    static ɵfac: i0.ɵɵFactoryDeclaration<NzImageModule, never>;
    static ɵmod: i0.ɵɵNgModuleDeclaration<NzImageModule, never, [typeof NzImageDirective, typeof NzImagePreviewComponent, typeof NzImageGroupComponent], [typeof NzImageDirective, typeof NzImagePreviewComponent, typeof NzImageGroupComponent]>;
    static ɵinj: i0.ɵɵInjectorDeclaration<NzImageModule>;
}

/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */
/**
 * fit content details: https://github.com/NG-ZORRO/ng-zorro-antd/pull/6154#issuecomment-745025554
 *
 * calc position x,y point
 *
 * CASE (width <= clientWidth && height <= clientHeight):
 *
 * ------------- clientWidth -------------
 * |                                     |
 * |        ------ width ------          |
 * |        |                 |          |
 * |        |                 |          |
 * client   height            |          |
 * Height   |                 |          |
 * |        |                 |          |
 * |        -------------------          |
 * |                                     |
 * |                                     |
 * ---------------------------------------
 * fixedPosition = { x: 0, y: 0 }
 *
 *
 *
 * CASE (width > clientWidth || height > clientHeight):
 *
 * ------------- clientWidth -------------
 * |        |                            |
 * |        top                          |
 * |        |                            |
 * |--left--|--------------- width -----------------
 * |        |                                      |
 * client   |                                      |
 * Height   |                                      |
 * |        |                                      |
 * |        |                                      |
 * |        height                                 |
 * |        |                                      |
 * ---------|                                      |
 *          |                                      |
 *          |                                      |
 *          |                                      |
 *          ----------------------------------------
 *
 *
 * - left || top > 0
 *   left -> 0 || top -> 0
 *
 * - (left + width) < clientWidth || (top + height) < clientHeight
 * - left | top + width | height < clientWidth | clientHeight -> Back left | top + width | height === clientWidth | clientHeight
 *
 * DEFAULT:
 * - hold position
 *
 */
declare function getFitContentPosition(params: {
    width: number;
    height: number;
    left: number;
    top: number;
    clientWidth: number;
    clientHeight: number;
}): {
    x?: number;
    y?: number;
};
declare function getOffset(node: HTMLElement): {
    left: number;
    top: number;
};
declare function getClientSize(): {
    width: number;
    height: number;
};

export { NZ_CONFIG_MODULE_NAME, NZ_DEFAULT_SCALE_STEP, NzImageDirective, NzImageGroupComponent, NzImageModule, NzImagePreviewComponent, NzImagePreviewOptions, NzImagePreviewRef, NzImageService, getClientSize, getFitContentPosition, getOffset };
export type { ImageStatusType, NzImage, NzImageContainerOperation, NzImageScaleStep, NzImageUrl };