share.service.ts

import { Injectable } from '@angular/core';

declare const window;

@Injectable()
export class ShareService {

  private linkPopupWidth = 500;
  private linkPopupHeight = 500;

  constructor() {
  }

  private isMobile() {
    let check = false;
    ((a) => {
      if (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0, 4))) {
        check = true;
      }
    })(navigator.userAgent || navigator.vendor || window.opera);
    return check;
  }

  private openSharePopup(link): Window {
    const winTop = (screen.height / 2) - (this.linkPopupHeight / 2);
    const winLeft = (screen.width / 2) - (this.linkPopupWidth / 2);
    const param = `top=${winTop},left=${winLeft},toolbar=0,status=0,width=${this.linkPopupWidth},height=${this.linkPopupHeight}`;
    if (this.isMobile()) {
      return window.open(link);
    }
    return window.open(link, '_blank', param);
  }

  public facebook(link: string): Window {
    return this.openSharePopup('http://www.facebook.com/sharer.php?s=100&p[url]=' + encodeURI(link));
  }

  public twitter(link: string): Window {
    return this.openSharePopup('https://twitter.com/intent/tweet?url=' + encodeURI(link));
  }

  public messenger(link: string): Window {
    if (this.isMobile()) {
      return window.open(`fb-messenger://share?link=${encodeURI(link)}`);
    } else {
      return this.openSharePopup(`http://www.facebook.com/dialog/send?link=${encodeURI(link)}`);
    }
  }

  public whatsapp(link: string): Window {
    return window.open(`whatsapp://send?text=${link}`);
  }

  public linkedin(link: string, title?: string): Window {
    let url = 'https://www.linkedin.com/shareArticle?url=' + encodeURI(link);
    if (title) {
      url += '&title=' + title
    }
    return this.openSharePopup(url);
  }

  public email(title: string, body: string, to?: string) {
    window.location.href = `mailto:${to ? to : ''}?subject=${title}&body=${body}`;
  }
}