Toast notificaitons / Aurelia (CLI/RequireJS)

_toastr.scss

.toast-title { font-weight: bold; }
.toast-message { -ms-word-wrap: break-word; word-wrap: break-word; }
.toast-message a,
.toast-message label { color: #ffffff; }
.toast-message a:hover { color: #cccccc; text-decoration: none; }
.toast-close-button {
  position: relative;
  right: -0.3em;
  top: -0.3em;
  float: right;
  font-size: 20px;
  font-weight: bold;
  color: #ffffff;
  -webkit-text-shadow: 0 1px 0 #ffffff;
  text-shadow: 0 1px 0 #ffffff;
  opacity: 0.8;
  -ms-filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=80);
  filter: alpha(opacity=80);
}
.toast-close-button:hover,
.toast-close-button:focus {
  color: #000000;
  text-decoration: none;
  cursor: pointer;
  opacity: 0.4;
  -ms-filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=40);
  filter: alpha(opacity=40);
}
/*Additional properties for button version
 iOS requires the button element instead of an anchor tag.
 If you want the anchor version, it requires `href="#"`.*/
button.toast-close-button {
  padding: 0;
  cursor: pointer;
  background: transparent;
  border: 0;
  -webkit-appearance: none;
}
.toast-top-center {
  top: 0;
  right: 0;
  width: 100%;
}
.toast-bottom-center {
  bottom: 0;
  right: 0;
  width: 100%;
}
.toast-top-full-width {
  top: 0;
  right: 0;
  width: 100%;
}
.toast-bottom-full-width {
  bottom: 0;
  right: 0;
  width: 100%;
}
.toast-top-left {
  top: 12px;
  left: 12px;
}
.toast-top-right {
  top: 12px;
  right: 12px;
}
.toast-bottom-right {
  right: 12px;
  bottom: 12px;
}
.toast-bottom-left {
  bottom: 12px;
  left: 12px;
}
#toast-container {
  position: fixed;
  z-index: 999999;
  /*overrides*/

}
#toast-container * {
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
#toast-container > div {
  position: relative;
  overflow: hidden;
  margin: 0 0 .5rem .5rem;
  padding: 1rem;
  min-width: 25rem;
  -moz-box-shadow: 0 2px 4px rgba(#000000, .2);
  -webkit-box-shadow: 0 2px 4px rgba(#000000, .2);
  box-shadow: 0 2px 4px rgba(#000000, .2);
  color: #ffffff;
}
#toast-container > :hover {
  cursor: pointer;
}

#toast-container.toast-top-center > div,
#toast-container.toast-bottom-center > div {
  width: 300px;
  margin: auto;
}
#toast-container.toast-top-full-width > div,
#toast-container.toast-bottom-full-width > div {
  width: 96%;
  margin: auto;
}
.toast {
  background-color: #030303;
}
.toast-success { background-color: $green-500; color: $green-500-text; }
.toast-error { background-color: $red-500; color: $red-500-text; }
.toast-info { background-color: $grey-800; color: $grey-800-text; }
.toast-warning { background-color: $yellow-500; color: $yellow-500-text; }

.toast-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 4px;
  background-color: #000000;
  opacity: 0.4;
  -ms-filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=40);
  filter: alpha(opacity=40);
}

/*Responsive Design*/
@media all and (max-width: 240px) {
  #toast-container > div {
    padding: 8px 8px 8px 50px;
    width: 11em;
  }
  #toast-container .toast-close-button {
    right: -0.2em;
    top: -0.2em;
  }
}
@media all and (min-width: 241px) and (max-width: 480px) {
  #toast-container > div {
    padding: 8px 8px 8px 50px;
    width: 18em;
  }
  #toast-container .toast-close-button {
    right: -0.2em;
    top: -0.2em;
  }
}
@media all and (min-width: 481px) and (max-width: 768px) {
  #toast-container > div {
    padding: 15px 15px 15px 50px;
    width: 25em;
  }
}

notification.js

/**
 * Imports
 */
import {transient, inject} from 'aurelia-framework';

import Toastr from 'toastr';

/**
 * Decorators
 */
@inject(Toastr)

/**
 * Notification Class
 * @class
 */
export class Notification {

  /**
   * Constructs a ServiceUtility instance
   * @param toastr {object} - toastr instance
   * @constructor
   */
  constructor(toastr) {
    this.toastr = toastr;
    this.toastr.options = {
      'closeButton': false,
      'debug': false,
      'newestOnTop': false,
      'progressBar': false,
      'positionClass': 'toast-bottom-left',
      'preventDuplicates': false,
      'onclick': null,
      'showDuration': '300',
      'hideDuration': '1000',
      'timeOut': '7500',
      'extendedTimeOut': '1000',
      'showEasing': 'swing',
      'hideEasing': 'linear',
      'showMethod': 'fadeIn',
      'hideMethod': 'fadeOut'
    };
  }

  /**
   * Shows an error notification
   * @param msg {String} - message to be displayed
   */
  showError(msg) {
    this.toastr.error(msg, null, { 'timeOut': '12500' });
  }

  /**
   * Shows a success notification
   * @param msg {String} - message to be displayed
   */
  showSuccess(msg) {
    this.toastr.success(msg);
  }

  /**
   * Shows a warning notification
   * @param msg {String} - message to be displayed
   */
  showWarning(msg) {
    this.toastr.warning(msg);
  }

  /**
   * Shows an info notification
   * @param msg {String} - message to be displayed
   */
  showInfo(msg) {
    this.toastr.info(msg);
  }

  /**
   * Handles showing any messages coming back form the server payload
   * @param messages {object} - object with message arrays
   */
  handleServerMessages(messages) {
    for (let message of messages.successes) {
      this.showSuccess(message);
    }
    for (let message of messages.errors) {
      this.showError(message);
    }
    for (let message of messages.infos) {
      this.showInfo(message);
    }
    for (let message of messages.warnings) {
      this.showWarning(message);
    }
  }
}