ng-zorro-antd/fesm2015/ng-zorro-antd-core-polyfill.js

An enterprise-class UI components based on Ant Design and Angular

/**
 * @fileoverview added by tsickle
 * Generated from: request-animation.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
// tslint:disable: typedef no-invalid-this
/** @type {?} */
const availablePrefixes = ['moz', 'ms', 'webkit'];
/**
 * @return {?}
 */
function requestAnimationFramePolyfill() {
    /** @type {?} */
    let lastTime = 0;
    return (/**
     * @param {?} callback
     * @return {?}
     */
    function (callback) {
        /** @type {?} */
        const currTime = new Date().getTime();
        /** @type {?} */
        const timeToCall = Math.max(0, 16 - (currTime - lastTime));
        /** @type {?} */
        const id = setTimeout((/**
         * @return {?}
         */
        () => {
            callback(currTime + timeToCall);
        }), timeToCall);
        lastTime = currTime + timeToCall;
        return id;
    });
}
/**
 * @return {?}
 */
function getRequestAnimationFrame() {
    if (typeof window === 'undefined') {
        return (/**
         * @return {?}
         */
        () => 0);
    }
    if (window.requestAnimationFrame) {
        // https://github.com/vuejs/vue/issues/4465
        return window.requestAnimationFrame.bind(window);
    }
    /** @type {?} */
    const prefix = availablePrefixes.filter((/**
     * @param {?} key
     * @return {?}
     */
    key => `${key}RequestAnimationFrame` in window))[0];
    return prefix ? ((/** @type {?} */ (window)))[`${prefix}RequestAnimationFrame`] : requestAnimationFramePolyfill();
}
/**
 * @param {?} id
 * @return {?}
 */
function cancelRequestAnimationFrame(id) {
    if (typeof window === 'undefined') {
        return null;
    }
    if (window.cancelAnimationFrame) {
        return window.cancelAnimationFrame(id);
    }
    /** @type {?} */
    const prefix = availablePrefixes.filter((/**
     * @param {?} key
     * @return {?}
     */
    key => `${key}CancelAnimationFrame` in window || `${key}CancelRequestAnimationFrame` in window))[0];
    return prefix
        ? (((/** @type {?} */ (window)))[`${prefix}CancelAnimationFrame`] || ((/** @type {?} */ (window)))[`${prefix}CancelRequestAnimationFrame`])
            // @ts-ignore
            .call(this, id)
        : clearTimeout(id);
}
/** @type {?} */
const reqAnimFrame = getRequestAnimationFrame();

/**
 * @fileoverview added by tsickle
 * Generated from: public-api.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */

/**
 * @fileoverview added by tsickle
 * Generated from: ng-zorro-antd-core-polyfill.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */

export { cancelRequestAnimationFrame, reqAnimFrame };
//# sourceMappingURL=ng-zorro-antd-core-polyfill.js.map