angular2-moment/time-ago.pipe.js

"use strict";
/* angular2-moment (c) 2015, 2016 Uri Shaked / MIT Licence */
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
Object.defineProperty(exports, "__esModule", { value: true });
var core_1 = require("@angular/core");
var moment = require("moment");
// under systemjs, moment is actually exported as the default export, so we account for that
var momentConstructor = moment.default || moment;
var TimeAgoPipe = /** @class */ (function () {
    function TimeAgoPipe(cdRef, ngZone) {
        this.cdRef = cdRef;
        this.ngZone = ngZone;
    }
    TimeAgoPipe.prototype.transform = function (value, omitSuffix) {
        if (this.hasChanged(value, omitSuffix)) {
            this.lastTime = this.getTime(value);
            this.lastValue = value;
            this.lastOmitSuffix = omitSuffix;
            this.lastLocale = this.getLocale(value);
            this.removeTimer();
            this.createTimer();
            this.lastText = momentConstructor(value).from(momentConstructor(), omitSuffix);
        }
        else {
            this.createTimer();
        }
        return this.lastText;
    };
    TimeAgoPipe.prototype.ngOnDestroy = function () {
        this.removeTimer();
    };
    TimeAgoPipe.prototype.createTimer = function () {
        var _this = this;
        if (this.currentTimer) {
            return;
        }
        var momentInstance = momentConstructor(this.lastValue);
        var timeToUpdate = this.getSecondsUntilUpdate(momentInstance) * 1000;
        this.currentTimer = this.ngZone.runOutsideAngular(function () {
            if (typeof window !== 'undefined') {
                return window.setTimeout(function () {
                    _this.lastText = momentConstructor(_this.lastValue).from(momentConstructor(), _this.lastOmitSuffix);
                    _this.currentTimer = null;
                    _this.ngZone.run(function () { return _this.cdRef.markForCheck(); });
                }, timeToUpdate);
            }
        });
    };
    TimeAgoPipe.prototype.removeTimer = function () {
        if (this.currentTimer) {
            window.clearTimeout(this.currentTimer);
            this.currentTimer = null;
        }
    };
    TimeAgoPipe.prototype.getSecondsUntilUpdate = function (momentInstance) {
        var howOld = Math.abs(momentConstructor().diff(momentInstance, 'minute'));
        if (howOld < 1) {
            return 1;
        }
        else if (howOld < 60) {
            return 30;
        }
        else if (howOld < 180) {
            return 300;
        }
        else {
            return 3600;
        }
    };
    TimeAgoPipe.prototype.hasChanged = function (value, omitSuffix) {
        return this.getTime(value) !== this.lastTime
            || this.getLocale(value) !== this.lastLocale
            || omitSuffix !== this.lastOmitSuffix;
    };
    TimeAgoPipe.prototype.getTime = function (value) {
        if (moment.isDate(value)) {
            return value.getTime();
        }
        else if (moment.isMoment(value)) {
            return value.valueOf();
        }
        else {
            return momentConstructor(value).valueOf();
        }
    };
    TimeAgoPipe.prototype.getLocale = function (value) {
        return moment.isMoment(value) ? value.locale() : null;
    };
    TimeAgoPipe = __decorate([
        core_1.Pipe({ name: 'amTimeAgo', pure: false }),
        __metadata("design:paramtypes", [core_1.ChangeDetectorRef, core_1.NgZone])
    ], TimeAgoPipe);
    return TimeAgoPipe;
}());
exports.TimeAgoPipe = TimeAgoPipe;
//# sourceMappingURL=time-ago.pipe.js.map