ngx-amap/esm2015/shared/event-binder.service.js

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/**
 * @fileoverview added by tsickle
 * Generated from: shared/event-binder.service.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
import { Injectable, NgZone } from '@angular/core';
import { Observable } from 'rxjs';
import { switchMap } from 'rxjs/operators';
import { LoggerService } from './logger/logger.service';
/** @type {?} */
const TAG = 'EventBinder';
export class EventBinderService {
    /**
     * @param {?} logger
     * @param {?} ngZone
     */
    constructor(logger, ngZone) {
        this.logger = logger;
        this.ngZone = ngZone;
    }
    /**
     * 注册事件
     * @template T
     * @param {?} target
     * @param {?} eventName 事件名
     * @return {?}
     */
    bindEvent(target, eventName) {
        return (/** @type {?} */ (target.pipe(switchMap((/**
         * @param {?} t
         * @return {?}
         */
        (t) => new Observable((/**
         * @param {?} observer
         * @return {?}
         */
        observer => {
            /** @type {?} */
            let handler = AMap.event.addListener(t, eventName, (/**
             * @param {?} e
             * @return {?}
             */
            e => {
                this.ngZone.run((/**
                 * @return {?}
                 */
                () => observer.next(e)));
            }), this);
            this.logger.d(TAG, `subscribed event: ${eventName}`);
            return (/**
             * @return {?}
             */
            () => {
                AMap.event.removeListener(handler);
                this.logger.d(TAG, `unsubscribed event: ${eventName}`);
                eventName = null;
                handler = null;
            });
        })))))));
    }
}
EventBinderService.decorators = [
    { type: Injectable }
];
/** @nocollapse */
EventBinderService.ctorParameters = () => [
    { type: LoggerService },
    { type: NgZone }
];
if (false) {
    /**
     * @type {?}
     * @private
     */
    EventBinderService.prototype.logger;
    /**
     * @type {?}
     * @private
     */
    EventBinderService.prototype.ngZone;
}
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