@cometchat/chat-uikit-react-native/lib/shared/libs/ImageZoom/ReactNativeZoomableViewWithGestures.d.ts

Ready-to-use Chat UI Components for React Native

import { ReactNativeZoomableViewState, ReactNativeZoomableViewWithGesturesProps, ZoomableViewEvent } from "./types";
import React from "react";
import ReactNativeZoomableView from "./ReactNativeZoomableView";
import { GestureResponderEvent, PanResponderGestureState } from "react-native";
export declare const swipeDirections: {
    SWIPE_UP: string;
    SWIPE_DOWN: string;
    SWIPE_LEFT: string;
    SWIPE_RIGHT: string;
};
declare class ReactNativeZoomableViewWithGestures extends React.Component<ReactNativeZoomableViewWithGesturesProps, ReactNativeZoomableViewState> {
    zoomableViewRef: React.RefObject<ReactNativeZoomableView | null>;
    constructor(props: ReactNativeZoomableViewWithGesturesProps);
    _onShiftingEnd: (e: GestureResponderEvent, gestureState: PanResponderGestureState, zoomableViewState: ZoomableViewEvent) => void;
    /**
     * Checks if current config options make it possible to process a swipe or if is not necessary
     *
     * @returns {*}
     * @private
     */
    _couldCallSwipeEvent(zoomableViewState: {
        zoomLevel: number;
    }): false | ((swipeDirection: import("./types").SwipeDirection, gestureState: PanResponderGestureState) => void) | ((gestureState: PanResponderGestureState) => void) | undefined;
    /**
     * Checks the swipe and validates whether we should process it or not
     *
     * @param gestureState
     * @returns {*|boolean}
     *
     * @private
     */
    _validateSwipe(gestureState: any): boolean | undefined;
    /**
     * Triggers the correct directional callback
     *
     * @param swipeDirection
     * @param gestureState
     * @private
     */
    _triggerSwipeHandlers(swipeDirection: any, gestureState: PanResponderGestureState): void;
    /**
     * Calculates what direction the user swiped
     *
     * @param gestureState
     * @returns {*}
     * @private
     */
    _getSwipeDirection(gestureState: any): string | null;
    /**
     * Checks, whether the swipe was done in a horizontal fashion, respecting swipeVelocityThreshold limits
     *
     * @param gestureState
     * @returns {*}
     *
     * @private
     */
    _isValidHorizontalSwipe(gestureState: {
        vx: any;
        dy: any;
    }): boolean;
    /**
     * Checks, whether the swipe was done in a vertical fashion, respecting swipeVelocityThreshold limits
     *
     * @param gestureState
     * @returns {*}
     *
     * @private
     */
    _isValidVerticalSwipe(gestureState: {
        vy: any;
        dx: any;
    }): boolean;
    /**
     * Checks the sipw against velocity and directional offset to make sure it only gets activated, when we actually need it
     *
     * @param velocity
     * @param swipeVelocityThreshold
     * @param directionalOffset
     * @param swipeDirectionalThreshold
     *
     * @returns {boolean}
     *
     * @private
     */
    _isValidSwipe(velocity: number, swipeVelocityThreshold: any, directionalOffset: number, swipeDirectionalThreshold: any): boolean;
    render(): React.JSX.Element;
}
export default ReactNativeZoomableViewWithGestures;