/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
import PerfectScrollbar from 'perfect-scrollbar';
import ResizeObserver from 'resize-observer-polyfill';
import { Subject, fromEvent } from 'rxjs';
import { auditTime, takeUntil } from 'rxjs/operators';
import { PLATFORM_ID } from '@angular/core';
import { isPlatformBrowser } from '@angular/common';
import { NgZone, Inject, Optional, ElementRef, Directive, Input, Output, EventEmitter, KeyValueDiffers } from '@angular/core';
import { Geometry, Position } from './perfect-scrollbar.interfaces';
import { PERFECT_SCROLLBAR_CONFIG, PerfectScrollbarConfig, PerfectScrollbarEvents } from './perfect-scrollbar.interfaces';
var PerfectScrollbarDirective = /** @class */ (function () {
    function PerfectScrollbarDirective(zone, differs, elementRef, platformId, defaults) {
        this.zone = zone;
        this.differs = differs;
        this.elementRef = elementRef;
        this.platformId = platformId;
        this.defaults = defaults;
        this.instance = null;
        this.ro = null;
        this.timeout = null;
        this.animation = null;
        this.configDiff = null;
        this.ngDestroy = new Subject();
        this.disabled = false;
        this.psScrollY = new EventEmitter();
        this.psScrollX = new EventEmitter();
        this.psScrollUp = new EventEmitter();
        this.psScrollDown = new EventEmitter();
        this.psScrollLeft = new EventEmitter();
        this.psScrollRight = new EventEmitter();
        this.psYReachEnd = new EventEmitter();
        this.psYReachStart = new EventEmitter();
        this.psXReachEnd = new EventEmitter();
        this.psXReachStart = new EventEmitter();
    }
    /**
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.ngOnInit = /**
     * @return {?}
     */
    function () {
        var _this = this;
        if (!this.disabled && isPlatformBrowser(this.platformId)) {
            /** @type {?} */
            var config_1 = new PerfectScrollbarConfig(this.defaults);
            config_1.assign(this.config); // Custom configuration
            this.zone.runOutsideAngular((/**
             * @return {?}
             */
            function () {
                _this.instance = new PerfectScrollbar(_this.elementRef.nativeElement, config_1);
            }));
            if (!this.configDiff) {
                this.configDiff = this.differs.find(this.config || {}).create();
                this.configDiff.diff(this.config || {});
            }
            this.zone.runOutsideAngular((/**
             * @return {?}
             */
            function () {
                _this.ro = new ResizeObserver((/**
                 * @return {?}
                 */
                function () {
                    _this.update();
                }));
                if (_this.elementRef.nativeElement.children[0]) {
                    _this.ro.observe(_this.elementRef.nativeElement.children[0]);
                }
                _this.ro.observe(_this.elementRef.nativeElement);
            }));
            this.zone.runOutsideAngular((/**
             * @return {?}
             */
            function () {
                PerfectScrollbarEvents.forEach((/**
                 * @param {?} eventName
                 * @return {?}
                 */
                function (eventName) {
                    /** @type {?} */
                    var eventType = eventName.replace(/([A-Z])/g, (/**
                     * @param {?} c
                     * @return {?}
                     */
                    function (c) { return "-" + c.toLowerCase(); }));
                    fromEvent(_this.elementRef.nativeElement, eventType)
                        .pipe(auditTime(20), takeUntil(_this.ngDestroy))
                        .subscribe((/**
                     * @param {?} event
                     * @return {?}
                     */
                    function (event) {
                        _this[eventName].emit(event);
                    }));
                }));
            }));
        }
    };
    /**
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.ngOnDestroy = /**
     * @return {?}
     */
    function () {
        var _this = this;
        if (isPlatformBrowser(this.platformId)) {
            this.ngDestroy.next();
            this.ngDestroy.complete();
            if (this.ro) {
                this.ro.disconnect();
            }
            if (this.timeout && typeof window !== 'undefined') {
                window.clearTimeout(this.timeout);
            }
            this.zone.runOutsideAngular((/**
             * @return {?}
             */
            function () {
                if (_this.instance) {
                    _this.instance.destroy();
                }
            }));
            this.instance = null;
        }
    };
    /**
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.ngDoCheck = /**
     * @return {?}
     */
    function () {
        if (!this.disabled && this.configDiff && isPlatformBrowser(this.platformId)) {
            /** @type {?} */
            var changes = this.configDiff.diff(this.config || {});
            if (changes) {
                this.ngOnDestroy();
                this.ngOnInit();
            }
        }
    };
    /**
     * @param {?} changes
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.ngOnChanges = /**
     * @param {?} changes
     * @return {?}
     */
    function (changes) {
        if (changes['disabled'] && !changes['disabled'].isFirstChange() && isPlatformBrowser(this.platformId)) {
            if (changes['disabled'].currentValue !== changes['disabled'].previousValue) {
                if (changes['disabled'].currentValue === true) {
                    this.ngOnDestroy();
                }
                else if (changes['disabled'].currentValue === false) {
                    this.ngOnInit();
                }
            }
        }
    };
    /**
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.ps = /**
     * @return {?}
     */
    function () {
        return this.instance;
    };
    /**
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.update = /**
     * @return {?}
     */
    function () {
        var _this = this;
        if (typeof window !== 'undefined') {
            if (this.timeout) {
                window.clearTimeout(this.timeout);
            }
            this.timeout = window.setTimeout((/**
             * @return {?}
             */
            function () {
                if (!_this.disabled && _this.configDiff) {
                    try {
                        _this.zone.runOutsideAngular((/**
                         * @return {?}
                         */
                        function () {
                            if (_this.instance) {
                                _this.instance.update();
                            }
                        }));
                    }
                    catch (error) {
                        // Update can be finished after destroy so catch errors
                    }
                }
            }), 0);
        }
    };
    /**
     * @param {?=} prefix
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.geometry = /**
     * @param {?=} prefix
     * @return {?}
     */
    function (prefix) {
        if (prefix === void 0) { prefix = 'scroll'; }
        return new Geometry(this.elementRef.nativeElement[prefix + 'Left'], this.elementRef.nativeElement[prefix + 'Top'], this.elementRef.nativeElement[prefix + 'Width'], this.elementRef.nativeElement[prefix + 'Height']);
    };
    /**
     * @param {?=} absolute
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.position = /**
     * @param {?=} absolute
     * @return {?}
     */
    function (absolute) {
        if (absolute === void 0) { absolute = false; }
        if (!absolute && this.instance) {
            return new Position(this.instance.reach.x || 0, this.instance.reach.y || 0);
        }
        else {
            return new Position(this.elementRef.nativeElement.scrollLeft, this.elementRef.nativeElement.scrollTop);
        }
    };
    /**
     * @param {?=} direction
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.scrollable = /**
     * @param {?=} direction
     * @return {?}
     */
    function (direction) {
        if (direction === void 0) { direction = 'any'; }
        /** @type {?} */
        var element = this.elementRef.nativeElement;
        if (direction === 'any') {
            return element.classList.contains('ps--active-x') ||
                element.classList.contains('ps--active-y');
        }
        else if (direction === 'both') {
            return element.classList.contains('ps--active-x') &&
                element.classList.contains('ps--active-y');
        }
        else {
            return element.classList.contains('ps--active-' + direction);
        }
    };
    /**
     * @param {?} x
     * @param {?=} y
     * @param {?=} speed
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.scrollTo = /**
     * @param {?} x
     * @param {?=} y
     * @param {?=} speed
     * @return {?}
     */
    function (x, y, speed) {
        if (!this.disabled) {
            if (y == null && speed == null) {
                this.animateScrolling('scrollTop', x, speed);
            }
            else {
                if (x != null) {
                    this.animateScrolling('scrollLeft', x, speed);
                }
                if (y != null) {
                    this.animateScrolling('scrollTop', y, speed);
                }
            }
        }
    };
    /**
     * @param {?} x
     * @param {?=} speed
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.scrollToX = /**
     * @param {?} x
     * @param {?=} speed
     * @return {?}
     */
    function (x, speed) {
        this.animateScrolling('scrollLeft', x, speed);
    };
    /**
     * @param {?} y
     * @param {?=} speed
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.scrollToY = /**
     * @param {?} y
     * @param {?=} speed
     * @return {?}
     */
    function (y, speed) {
        this.animateScrolling('scrollTop', y, speed);
    };
    /**
     * @param {?=} offset
     * @param {?=} speed
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.scrollToTop = /**
     * @param {?=} offset
     * @param {?=} speed
     * @return {?}
     */
    function (offset, speed) {
        this.animateScrolling('scrollTop', (offset || 0), speed);
    };
    /**
     * @param {?=} offset
     * @param {?=} speed
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.scrollToLeft = /**
     * @param {?=} offset
     * @param {?=} speed
     * @return {?}
     */
    function (offset, speed) {
        this.animateScrolling('scrollLeft', (offset || 0), speed);
    };
    /**
     * @param {?=} offset
     * @param {?=} speed
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.scrollToRight = /**
     * @param {?=} offset
     * @param {?=} speed
     * @return {?}
     */
    function (offset, speed) {
        /** @type {?} */
        var left = this.elementRef.nativeElement.scrollWidth -
            this.elementRef.nativeElement.clientWidth;
        this.animateScrolling('scrollLeft', left - (offset || 0), speed);
    };
    /**
     * @param {?=} offset
     * @param {?=} speed
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.scrollToBottom = /**
     * @param {?=} offset
     * @param {?=} speed
     * @return {?}
     */
    function (offset, speed) {
        /** @type {?} */
        var top = this.elementRef.nativeElement.scrollHeight -
            this.elementRef.nativeElement.clientHeight;
        this.animateScrolling('scrollTop', top - (offset || 0), speed);
    };
    /**
     * @param {?} qs
     * @param {?=} offset
     * @param {?=} speed
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.scrollToElement = /**
     * @param {?} qs
     * @param {?=} offset
     * @param {?=} speed
     * @return {?}
     */
    function (qs, offset, speed) {
        /** @type {?} */
        var element = this.elementRef.nativeElement.querySelector(qs);
        if (element) {
            /** @type {?} */
            var elementPos = element.getBoundingClientRect();
            /** @type {?} */
            var scrollerPos = this.elementRef.nativeElement.getBoundingClientRect();
            if (this.elementRef.nativeElement.classList.contains('ps--active-x')) {
                /** @type {?} */
                var currentPos = this.elementRef.nativeElement['scrollLeft'];
                /** @type {?} */
                var position = elementPos.left - scrollerPos.left + currentPos;
                this.animateScrolling('scrollLeft', position + (offset || 0), speed);
            }
            if (this.elementRef.nativeElement.classList.contains('ps--active-y')) {
                /** @type {?} */
                var currentPos = this.elementRef.nativeElement['scrollTop'];
                /** @type {?} */
                var position = elementPos.top - scrollerPos.top + currentPos;
                this.animateScrolling('scrollTop', position + (offset || 0), speed);
            }
        }
    };
    /**
     * @private
     * @param {?} target
     * @param {?} value
     * @param {?=} speed
     * @return {?}
     */
    PerfectScrollbarDirective.prototype.animateScrolling = /**
     * @private
     * @param {?} target
     * @param {?} value
     * @param {?=} speed
     * @return {?}
     */
    function (target, value, speed) {
        var _this = this;
        if (this.animation) {
            window.cancelAnimationFrame(this.animation);
            this.animation = null;
        }
        if (!speed || typeof window === 'undefined') {
            this.elementRef.nativeElement[target] = value;
        }
        else if (value !== this.elementRef.nativeElement[target]) {
            /** @type {?} */
            var newValue_1 = 0;
            /** @type {?} */
            var scrollCount_1 = 0;
            /** @type {?} */
            var oldTimestamp_1 = performance.now();
            /** @type {?} */
            var oldValue_1 = this.elementRef.nativeElement[target];
            /** @type {?} */
            var cosParameter_1 = (oldValue_1 - value) / 2;
            /** @type {?} */
            var step_1 = (/**
             * @param {?} newTimestamp
             * @return {?}
             */
            function (newTimestamp) {
                scrollCount_1 += Math.PI / (speed / (newTimestamp - oldTimestamp_1));
                newValue_1 = Math.round(value + cosParameter_1 + cosParameter_1 * Math.cos(scrollCount_1));
                // Only continue animation if scroll position has not changed
                if (_this.elementRef.nativeElement[target] === oldValue_1) {
                    if (scrollCount_1 >= Math.PI) {
                        _this.animateScrolling(target, value, 0);
                    }
                    else {
                        _this.elementRef.nativeElement[target] = newValue_1;
                        // On a zoomed out page the resulting offset may differ
                        oldValue_1 = _this.elementRef.nativeElement[target];
                        oldTimestamp_1 = newTimestamp;
                        _this.animation = window.requestAnimationFrame(step_1);
                    }
                }
            });
            window.requestAnimationFrame(step_1);
        }
    };
    PerfectScrollbarDirective.decorators = [
        { type: Directive, args: [{
                    selector: '[perfectScrollbar]',
                    exportAs: 'ngxPerfectScrollbar'
                },] }
    ];
    /** @nocollapse */
    PerfectScrollbarDirective.ctorParameters = function () { return [
        { type: NgZone },
        { type: KeyValueDiffers },
        { type: ElementRef },
        { type: Object, decorators: [{ type: Inject, args: [PLATFORM_ID,] }] },
        { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [PERFECT_SCROLLBAR_CONFIG,] }] }
    ]; };
    PerfectScrollbarDirective.propDecorators = {
        disabled: [{ type: Input }],
        config: [{ type: Input, args: ['perfectScrollbar',] }],
        psScrollY: [{ type: Output }],
        psScrollX: [{ type: Output }],
        psScrollUp: [{ type: Output }],
        psScrollDown: [{ type: Output }],
        psScrollLeft: [{ type: Output }],
        psScrollRight: [{ type: Output }],
        psYReachEnd: [{ type: Output }],
        psYReachStart: [{ type: Output }],
        psXReachEnd: [{ type: Output }],
        psXReachStart: [{ type: Output }]
    };
    return PerfectScrollbarDirective;
}());
export { PerfectScrollbarDirective };
if (false) {
    /**
     * @type {?}
     * @private
     */
    PerfectScrollbarDirective.prototype.instance;
    /**
     * @type {?}
     * @private
     */
    PerfectScrollbarDirective.prototype.ro;
    /**
     * @type {?}
     * @private
     */
    PerfectScrollbarDirective.prototype.timeout;
    /**
     * @type {?}
     * @private
     */
    PerfectScrollbarDirective.prototype.animation;
    /**
     * @type {?}
     * @private
     */
    PerfectScrollbarDirective.prototype.configDiff;
    /**
     * @type {?}
     * @private
     */
    PerfectScrollbarDirective.prototype.ngDestroy;
    /** @type {?} */
    PerfectScrollbarDirective.prototype.disabled;
    /** @type {?} */
    PerfectScrollbarDirective.prototype.config;
    /** @type {?} */
    PerfectScrollbarDirective.prototype.psScrollY;
    /** @type {?} */
    PerfectScrollbarDirective.prototype.psScrollX;
    /** @type {?} */
    PerfectScrollbarDirective.prototype.psScrollUp;
    /** @type {?} */
    PerfectScrollbarDirective.prototype.psScrollDown;
    /** @type {?} */
    PerfectScrollbarDirective.prototype.psScrollLeft;
    /** @type {?} */
    PerfectScrollbarDirective.prototype.psScrollRight;
    /** @type {?} */
    PerfectScrollbarDirective.prototype.psYReachEnd;
    /** @type {?} */
    PerfectScrollbarDirective.prototype.psYReachStart;
    /** @type {?} */
    PerfectScrollbarDirective.prototype.psXReachEnd;
    /** @type {?} */
    PerfectScrollbarDirective.prototype.psXReachStart;
    /**
     * @type {?}
     * @private
     */
    PerfectScrollbarDirective.prototype.zone;
    /**
     * @type {?}
     * @private
     */
    PerfectScrollbarDirective.prototype.differs;
    /** @type {?} */
    PerfectScrollbarDirective.prototype.elementRef;
    /**
     * @type {?}
     * @private
     */
    PerfectScrollbarDirective.prototype.platformId;
    /**
     * @type {?}
     * @private
     */
    PerfectScrollbarDirective.prototype.defaults;
}
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