import { Component,Input, Injectable, ApplicationRef, ChangeDetectorRef, ChangeDetectionStrategy } from '@angular/core';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
import { Multiselect } from './multiselect.component';
import {Observable} from 'rxjs/Rx';
import 'rxjs/add/operator/filter';
import {Pipe, PipeTransform} from '@angular/core';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { FormGroup, FormControl } from '@angular/forms';
import { ActivatedRoute, Router, NavigationEnd } from '@angular/router';
import { DialogService, DialogComponent } from './services/dialog.service';

@Component({
    selector: 'my-app',
    templateUrl: 'templates/app.html',
    changeDetection: ChangeDetectionStrategy.OnPush,
    entryComponents: [DialogComponent]
})

export class AppComponent implements OnInit {
    private _lipsum: any;
    public isMenuExpanded: bool = false;
      
    constructor(private changeRef: ChangeDetectorRef, private appRef: ApplicationRef,
      private route: ActivatedRoute, private router: Router, private dialogService: DialogService) {
        declare var LoremIpsum: any;
        this._lipsum = new LoremIpsum();
    }
    
    toggleMenu() {
      this.isMenuExpanded = !this.isMenuExpanded;
    }
    
    open() {
      this.dialogService.open();
    }
        
    ngOnInit() {
      this.router.events
        .filter(event => event instanceof NavigationEnd)
        .subscribe(event => {
          let currentRoute = this.route.root;
          while (currentRoute.children[0] !== undefined) {
            currentRoute = currentRoute.children[0];
          }
          console.log(currentRoute.snapshot.data);
        })
    }
}

@Pipe({
    name: 'equal',
    pure: false
})

export class EqualPipe implements PipeTransform {
    transform(items: any, filter: any): any {
      if (filter && Array.isArray(items)) {
          let filterKeys = Object.keys(filter);
          return items.filter(item =>
              filterKeys.reduce((memo, keyName) => {
                  console.log("Comparing");
                  return item[keyName] === filter[keyName];}, true)
                  );
      } else {
          return items;
      }
    }
}

import { Component, NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { JsonpModule } from '@angular/http';
import { Multiselect, FilterPipe } from './multiselect.component';
import { Tristate } from './tristate.component';
import { AppComponent, EqualPipe } from './app.component';
import { Route1Component } from './route1.component';
import { Route2Component } from './route2.component';
import { Route3Component }  from './route3.component';
import { APP_BASE_HREF } from '@angular/common';
import { NavigationService } from './services/navigation.service';
import { ApiService } from './services/api.service';
import { DialogService, DialogComponent } from './services/dialog.service';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
import { routing } from './app.routing';

import { Http, HttpModule, RequestOptions, XHRBackend } from '@angular/http';
import { HttpService } from './services/http.service';

@NgModule({
  imports: [BrowserModule, FormsModule, ReactiveFormsModule, JsonpModule, HttpModule, NgbModule.forRoot(), routing], 
  declarations: [ AppComponent, Route1Component, Route2Component, Route3Component, DialogComponent, Multiselect, Tristate, FilterPipe, EqualPipe ],
  providers: [
    { provide: APP_BASE_HREF, useValue : document.location.pathname },
    { provide: Http,
      useFactory: (backend: XHRBackend, options: RequestOptions) => {
        return new HttpService(backend, options);
      },
      deps: [XHRBackend, RequestOptions]
    },
    NavigationService, DialogService, ApiService],
  entryComponents: [DialogComponent],
  bootstrap:    [ AppComponent ],
})

export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';

import { AppModule } from './app.module';

const platform = platformBrowserDynamic();
platform.bootstrapModule(AppModule);
/* Master Styles */

h1 {
  color: #369;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 250%;
}

h2,
h3 {
  color: #444;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: lighter;
}

body {
  margin: 2em;
}

body,
input[text],
button {
  color: #888;
  font-family: Cambria, Georgia;
}

a {
  cursor: pointer;
  cursor: hand;
}

button {
  font-family: Arial;
  background-color: #eee;
  border: none;
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
  cursor: hand;
}

button:hover {
  background-color: #cfd8dc;
}

button:disabled {
  background-color: #eee;
  color: #aaa;
  cursor: auto;
}


/* Navigation link styles 

nav a {
  padding: 5px 10px;
  text-decoration: none;
  margin-top: 10px;
  display: inline-block;
  background-color: #eee;
  border-radius: 4px;
}

nav a:visited,
a:link {
  color: #607D8B;
}

nav a:hover {
  color: #039be5;
  background-color: #CFD8DC;
}

nav a.active {
  color: #039be5;
}

*/

/* items class */

.items {
  margin: 0 0 2em 0;
  list-style-type: none;
  padding: 0;
  width: 24em;
}

.items li {
  cursor: pointer;
  position: relative;
  left: 0;
  background-color: #EEE;
  margin: .5em;
  padding: .3em 0;
  height: 1.6em;
  border-radius: 4px;
}

.items li:hover {
  color: #607D8B;
  background-color: #DDD;
  left: .1em;
}

.items li.selected:hover {
  background-color: #BBD8DC;
  color: white;
}

.items .text {
  position: relative;
  top: -3px;
}

.items {
  margin: 0 0 2em 0;
  list-style-type: none;
  padding: 0;
  width: 24em;
}

.items li {
  cursor: pointer;
  position: relative;
  left: 0;
  background-color: #EEE;
  margin: .5em;
  padding: .3em 0;
  height: 1.6em;
  border-radius: 4px;
}

.items li:hover {
  color: #607D8B;
  background-color: #DDD;
  left: .1em;
}

.items li.selected {
  background-color: #CFD8DC;
  color: white;
}

.items li.selected:hover {
  background-color: #BBD8DC;
}

.items .text {
  position: relative;
  top: -3px;
}

.items .badge {
  display: inline-block;
  font-size: small;
  color: white;
  padding: 0.8em 0.7em 0 0.7em;
  background-color: #607D8B;
  line-height: 1em;
  position: relative;
  left: -1px;
  top: -4px;
  height: 1.8em;
  margin-right: .8em;
  border-radius: 4px 0 0 4px;
}


/* everywhere else */

* {
  font-family: Arial, Helvetica, sans-serif;
}

multiselect {
  display: block;
}

multiselect > .btn-group {
  min-width: 180px;
}

multiselect .dropdown-toggle:after {
  content: none;
}

multiselect .btn {
  width: 100%;
  background-color: #FFF;
}
multiselect .btn.has-error {
  border: 1px solid #a94442 !important;
  color: #db524b;
}
multiselect .dropdown-menu {
  max-height: 300px;
  min-width: 200px;
  overflow-y: auto;
}
multiselect .dropdown-menu .filter > input {
  width: 99%;
}
multiselect .dropdown-menu .filter .clear-filter  {
  cursor: pointer;
  pointer-events: all;
      position: absolute;
    top: 0;
    right: 0;
    z-index: 2;
    display: block;
    width: 34px;
    height: 34px;
    line-height: 34px;
    text-align: center;
}
multiselect .dropdown-menu {
  /* width: 100%; */
  box-sizing: border-box;
  padding: 2px;
}
multiselect > .btn-group > button {
  padding-right: 20px;
}
multiselect > .btn-group > button > .caret {
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid black;
  right: 5px;
  top: 45%;
  position: absolute;
}
multiselect .dropdown-menu > li > a {
  padding: 3px 10px;
  cursor: pointer;
}
multiselect .dropdown-menu > li > a i {
  margin-right: 4px;
}
.glyphicon-none:before {
  content: "\e013";
  color: transparent !important;
}
<!DOCTYPE html>
<html>

  <head>
    <title>Angular2 Multiselect Checkbox Dropdown</title>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" />
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css" />
    <link rel="stylesheet" href="styles.css" />
    <!-- 1. Load libraries -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
    <script src="lorem-ipsum.js"></script>
    <script src="spin.js"></script>
    <script src="jquery.spin.js"></script>
    <!-- Polyfill(s) for older browsers -->
    <script src="https://unpkg.com/core-js/client/shim.min.js"></script>
    <script src="https://unpkg.com/zone.js@0.6.25?main=browser"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3"></script>
    <script src="https://unpkg.com/systemjs@0.19.27/dist/system.src.js"></script>
    <!-- 2. Configure SystemJS -->
    <script src="systemjs.config.js"></script>
    <script>
      System.import('app').catch(function(err){ console.error(err); });
    </script>
  </head>

  <!-- 3. Display the application -->
  <body>
    <my-app>Loading...</my-app>
  </body>

</html>
### Angular2 Tristate-Checkbox demo

This demo plnkr demonstrates an Angular2 Tri-state Checkbbox. Visit [https://long2know.com](https://long2know.com) for more demos and discussion..
/**
 * PLUNKER VERSION
 * (based on systemjs.config.js in angular.io)
 * System configuration for Angular samples
 * Adjust as necessary for your application needs.
 */
(function (global) {
  System.config({
    // DEMO ONLY! REAL CODE SHOULD NOT TRANSPILE IN THE BROWSER
    transpiler: 'ts',
    typescriptOptions: {
      tsconfig: true
    },
    meta: {
      'typescript': {
        "exports": "ts"
      }
    },
    paths: {
      // paths serve as alias
      'npm:': 'https://unpkg.com/'
    },
    // map tells the System loader where to look for things
    map: {
      // our app is within the app folder
      app: 'app',
      service: 'serivce',

      // angular bundles
      '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
      '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
      '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
      '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
      '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
      '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
      '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
      '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
      '@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',

      // other libraries
      'rxjs':                      'npm:rxjs',
      'angular-in-memory-web-api': 'npm:angular-in-memory-web-api',
      'ts':                        'npm:plugin-typescript@4.0.10/lib/plugin.js',
      'typescript':                'npm:typescript@2.1.5/lib/typescript.js',
      
      //'@ng-bootstrap/ng-bootstrap': 'npm:@ng-bootstrap/ng-bootstrap/bundles/ng-bootstrap.js'
      '@ng-bootstrap/ng-bootstrap': 'npm:@ng-bootstrap/ng-bootstrap@1.0.0-alpha.18/bundles/ng-bootstrap.js'

    },
    // packages tells the System loader how to load when no filename and/or no extension
    packages: {
      app: {
        main: './main.ts',
        defaultExtension: 'ts'
      },
      service: {
        defaultExtension: 'ts'
      },
      rxjs: {
        defaultExtension: 'js'
      },
      'angular-in-memory-web-api': {
        main: './index.js',
        defaultExtension: 'js'
      }
    }
  });
})(this);


/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/
{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": true,
    "suppressImplicitAnyIndexErrors": true,
    "types": []
  },
  "exclude": [
    "node_modules/*",
    "**/*-aot.ts"
  ]
}
<div class="container-fluid">
  <nav class="navbar navbar-light bg-faded rounded navbar-toggleable">
    <button (click)="toggleMenu()" class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#containerNavbar" aria-controls="containerNavbar" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
    <a class="navbar-brand" href="#">Navbar</a>

    <div class="collapse navbar-collapse" [ngClass]="{'show': isMenuExpanded}" id="containerNavbar">
      <ul class="navbar-nav mr-auto">
        <li class="nav-item"><a class="nav-link" [routerLink]="['/']" [routerLinkActive]="['active']" [routerLinkActiveOptions]="{exact: true}">Route1</a></li>
        <li class="nav-item"><a class="nav-link" [routerLink]="['route2']" [routerLinkActive]="['active']">Route2</a></li>
        <li class="nav-item"><a class="nav-link" [routerLink]="['route3']" [routerLinkActive]="['active']">Route3</a></li>
      </ul>
    </div>
  </nav>
  <template ngbModalContainer></template>
</div>
<br/>
<hr>
<p>
  This demo plnkr demonstrating an Angular2 <strong>Tri-state Checkbbox</strong>. Visit <a href="https://long2know.com/" target="_blank">https://long2know.com</a> for more demos and discussion..
</p>
<hr>
<router-outlet></router-outlet>
/**
 * @fileOverview Generates "Lorem ipsum" style text.
 * @author rviscomi@gmail.com Rick Viscomi,
 * 		tinsley@tinsology.net Mathew Tinsley
 * @version 1.0
 */

/**
 *	Copyright (c) 2009, Mathew Tinsley (tinsley@tinsology.net)
 *	All rights reserved.
 *
 *	Redistribution and use in source and binary forms, with or without
 *	modification, are permitted provided that the following conditions are met:
 *		* Redistributions of source code must retain the above copyright
 *		  notice, this list of conditions and the following disclaimer.
 *		* Redistributions in binary form must reproduce the above copyright
 *		  notice, this list of conditions and the following disclaimer in the
 *		  documentation and/or other materials provided with the distribution.
 *		* Neither the name of the organization nor the
 *		  names of its contributors may be used to endorse or promote products
 *		  derived from this software without specific prior written permission.
 *
 *	THIS SOFTWARE IS PROVIDED BY MATHEW TINSLEY ''AS IS'' AND ANY
 *	EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *	WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *	DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
 *	DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 *	(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *	LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 *	ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *	SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * @class Jibborish generator.
 */
var LoremIpsum = function () {
};

/**
 * Average number of words per sentence.
 * @constant {number}
 */
LoremIpsum.WORDS_PER_SENTENCE_AVG = 24.460;

/**
 * Standard deviation of the number of words per sentence.
 * @constant {number}
 */
LoremIpsum.WORDS_PER_SENTENCE_STD = 5.080;

/**
 * List of possible words.
 * @constant {Array.string}
 */
LoremIpsum.WORDS = [
		'lorem', 'ipsum', 'dolor', 'sit', 'amet', 'consectetur',
		'adipiscing', 'elit', 'curabitur', 'vel', 'hendrerit', 'libero',
		'eleifend', 'blandit', 'nunc', 'ornare', 'odio', 'ut',
		'orci', 'gravida', 'imperdiet', 'nullam', 'purus', 'lacinia',
		'a', 'pretium', 'quis', 'congue', 'praesent', 'sagittis', 
		'laoreet', 'auctor', 'mauris', 'non', 'velit', 'eros',
		'dictum', 'proin', 'accumsan', 'sapien', 'nec', 'massa',
		'volutpat', 'venenatis', 'sed', 'eu', 'molestie', 'lacus',
		'quisque', 'porttitor', 'ligula', 'dui', 'mollis', 'tempus',
		'at', 'magna', 'vestibulum', 'turpis', 'ac', 'diam',
		'tincidunt', 'id', 'condimentum', 'enim', 'sodales', 'in',
		'hac', 'habitasse', 'platea', 'dictumst', 'aenean', 'neque',
		'fusce', 'augue', 'leo', 'eget', 'semper', 'mattis', 
		'tortor', 'scelerisque', 'nulla', 'interdum', 'tellus', 'malesuada',
		'rhoncus', 'porta', 'sem', 'aliquet', 'et', 'nam',
		'suspendisse', 'potenti', 'vivamus', 'luctus', 'fringilla', 'erat',
		'donec', 'justo', 'vehicula', 'ultricies', 'varius', 'ante',
		'primis', 'faucibus', 'ultrices', 'posuere', 'cubilia', 'curae',
		'etiam', 'cursus', 'aliquam', 'quam', 'dapibus', 'nisl',
		'feugiat', 'egestas', 'class', 'aptent', 'taciti', 'sociosqu',
		'ad', 'litora', 'torquent', 'per', 'conubia', 'nostra',
		'inceptos', 'himenaeos', 'phasellus', 'nibh', 'pulvinar', 'vitae',
		'urna', 'iaculis', 'lobortis', 'nisi', 'viverra', 'arcu',
		'morbi', 'pellentesque', 'metus', 'commodo', 'ut', 'facilisis',
		'felis', 'tristique', 'ullamcorper', 'placerat', 'aenean', 'convallis',
		'sollicitudin', 'integer', 'rutrum', 'duis', 'est', 'etiam',
		'bibendum', 'donec', 'pharetra', 'vulputate', 'maecenas', 'mi',
		'fermentum', 'consequat', 'suscipit', 'aliquam', 'habitant', 'senectus',
		'netus', 'fames', 'quisque', 'euismod', 'curabitur', 'lectus',
		'elementum', 'tempor', 'risus', 'cras'
];

LoremIpsum.prototype.singleWord = function () {
  var position = Math.floor(Math.random() * LoremIpsum.WORDS.length);
  var word = LoremIpsum.WORDS[position];
  return word.charAt(0).toUpperCase() + word.slice(1);
}

/**
 * Generate "Lorem ipsum" style words.
 * @param num_words {number} Number of words to generate.
 * @return {string} "Lorem ipsum..."
 */
LoremIpsum.prototype.generate = function (num_words) {
	var words, ii, position, word, current, sentences, sentence_length, sentence;
	
	/**
	 * @default 100
	 */
	num_words = num_words || 100;
	
	words = [LoremIpsum.WORDS[0], LoremIpsum.WORDS[1]];
	num_words -= 2;
	
	for (ii = 0; ii < num_words; ii++) {
		position = Math.floor(Math.random() * LoremIpsum.WORDS.length);
		word = LoremIpsum.WORDS[position];
		
		if (ii > 0 && words[ii - 1] === word) {
			ii -= 1;
			
		} else {
			words[ii] = word;
		}
	}
	
	sentences = [];
	current = 0;
	
	while (num_words > 0) {
		sentence_length = this.getRandomSentenceLength();
		
		if (num_words - sentence_length < 4) {
			sentence_length = num_words;
		}
		
		num_words -= sentence_length;
		
		sentence = [];
		
		for (ii = current; ii < (current + sentence_length); ii++) {
			sentence.push(words[ii]);
		}
		
		sentence = this.punctuate(sentence);
		current += sentence_length;
		sentences.push(sentence.join(' '));
	}
	
	return sentences.join(' ');
};

/**
 * Insert commas and periods in the given sentence.
 * @param {Array.string} sentence List of words in the sentence.
 * @return {Array.string} Sentence with punctuation added.
 */
LoremIpsum.prototype.punctuate = function (sentence) {
	var word_length, num_commas, ii, position;
	
	word_length = sentence.length;
	
	/* End the sentence with a period. */
	sentence[word_length - 1] += '.';
	
	if (word_length < 4) {
		return sentence;
	}
	
	num_commas = this.getRandomCommaCount(word_length);
	
	for (ii = 0; ii <= num_commas; ii++) {
		position = Math.round(ii * word_length / (num_commas + 1));
		
		if (position < (word_length - 1) && position > 0) {
			/* Add the comma. */
			sentence[position] += ',';
		}
	}
	
	/* Capitalize the first word in the sentence. */
	sentence[0] = sentence[0].charAt(0).toUpperCase() + sentence[0].slice(1);
	
	return sentence;
};

/**
 * Produces a random number of commas.
 * @param {number} word_length Number of words in the sentence.
 * @return {number} Random number of commas
 */
LoremIpsum.prototype.getRandomCommaCount = function (word_length) {
	var base, average, standard_deviation;
	
	/* Arbitrary. */
	base = 6;
	
	average = Math.log(word_length) / Math.log(base);
	standard_deviation = average / base;
	
	return Math.round(this.gaussMS(average, standard_deviation));
};

/**
 * Produces a random sentence length based on the average word length
 * of an English sentence.
 * @return {number} Random sentence length
 */
LoremIpsum.prototype.getRandomSentenceLength = function () {
	return Math.round(
			this.gaussMS(
					LoremIpsum.WORDS_PER_SENTENCE_AVG,
					LoremIpsum.WORDS_PER_SENTENCE_STD
			)
	);
};

/**
 * Produces a random number.
 * @return {number} Random number
 */
LoremIpsum.prototype.gauss = function () {
	return (Math.random() * 2 - 1) +
			(Math.random() * 2 - 1) +
			(Math.random() * 2 - 1);
};

/**
 * Produces a random number with Gaussian distribution.
 * @param {number} mean
 * @param {number} standard_deviation
 * @return {number} Random number
 */
LoremIpsum.prototype.gaussMS = function (mean, standard_deviation) {
	return Math.round(this.gauss() * standard_deviation + mean);
};
this.sharedData.tabSet.select(id);
console.log(this.sharedData.tabSet);
Observable.create(observer => {
    setTimeout(() => {
        this.sharedData.tabSet.select(id)
        observer.complete();
        console.log("Observer complete");
    }, 1);
})
.subscribe(
  result => {
      this.sharedData.tabSet.select(id);
      console.log("subscription complete");
  },
  err => console.error(err),
  () => {
      this.sharedData.tabSet.select(id);
      console.log(this.sharedData.tabSet.activeId);
      console.log('done');
  }
);


setTimeout(() => {
    this._watch = Observable.from(this.ngbTabset.tabs);
    this._watch.subscribe(
      x => console.log('onNext: %s', x),
      e => console.log('onError: %s', e),
      () => {
          var index = this.ngbTabset.tabs.length - 1;
          var lastTab = this.ngbTabset.tabs.last;
          console.log(this.ngbTabset.tabs);
          console.log(index);
          console.log(lastTab);
          this.ngbTabset.select(lastTab.id);
          console.log('onCompleted');
      });
})
<div class="btn-group">
  <button type="button" class="btn btn-secondary dropdown-toggle" (click)="toggleSelect()">
    <span class="pull-left" [innerHtml]="header"></span>
    <span class="caret pull-right"></span>
  </button>
  <ul class="dropdown-menu multi-select-popup" [ngStyle]="{display:isOpen ? 'block' : 'none'}" style="display:block;">
    <li *ngIf="enableFilter" class="filter-container">
      <div class="form-group has-feedback filter">
        <input class="form-control" type="text" [value]="filterText" [placeholder]="filterPlaceholder" [formControl]="filterInput" />
        <span class="clear-filter fa fa-times-circle-o form-control-feedback" (click)="clearFilter()"></span>
      </div>
    </li>
    <li *ngFor="let item of _items | filter:{label:filterText}">
      <a (click)="select(item)" class="dropdown-item">
        <i class="fa fa-fw" [ngClass]="{'fa-check': item.checked, 'glyphicon-none': !item.checked}"></i>
        <span [innerHtml]="item.label"></span>
      </a>
    </li>
  </ul>
</div>

<br/>
<br/>
<br/>
<br/>


<!--

<div class="btn-group" ng-class="{ dropup: dropup, single: !multiple }">
    <button type="button" class="btn btn-default dropdown-toggle" ng-click="toggleSelect()" ng-disabled="disabled" ng-class="{'has-error': !valid()}">
        <span class="pull-left" ng-bind="header"></span>
        <span class="caret pull-right"></span>
    </button>
    <ul class="dropdown-menu multi-select-popup" ng-show="isOpen && !moveInProgress" ng-style="{ true: {top: position.top +'px', left: position.left +'px'}, false: {}}[appendToBody]" style="display: block;" role="listbox" aria-hidden="{{!isOpen}}">
        <li *ngIf="enableFilter" class="filter-container">
            <div class="form-group has-feedback filter">
                <input class="form-control" type="text" ng-model="searchText.label" placeholder="{{ filterPlaceholder }}" />
                <span class="glyphicon glyphicon-remove-circle form-control-feedback" ng-click="clearFilter()"></span>
            </div>
        </li>
        <li ng-show="multiple && (enableCheckAll || enableUncheckAll)">
            <button ng-if="enableCheckAll" type="button" class="btn-link btn-small" ng-click="checkAll()"><i class="icon-ok"></i> {{ checkAllLabel }}</button>
            <button ng-if="enableUncheckAll" type="button" class="btn-link btn-small" ng-click="uncheckAll()"><i class="icon-remove"></i> {{ uncheckAllLabel }}</button>
        </li>
        <li ng-show="maxSelected">
            <small>Selected maximum of </small><small ng-bind="selectLimit"></small>
        </li>
        <li ng-repeat="i in items | filter:searchText">
            <a ng-click="select(i);">
                <i class="glyphicon" ng-class="{'glyphicon-ok': i.checked, 'glyphicon-none': !i.checked}"></i>
                <span ng-bind="i.label"></span>
            </a>
        </li>
    </ul>
</div>

-->
import {Component,Input,Output,OnInit,ViewChild,EventEmitter,ChangeDetectionStrategy, Renderer, ElementRef, forwardRef} from '@angular/core';
import {Pipe, PipeTransform} from '@angular/core';
import {Observable} from 'rxjs/Rx';
import 'rxjs/add/operator/debounceTime';
import 'rxjs/add/operator/throttleTime';
import 'rxjs/add/observable/fromEvent';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { FormGroup, FormControl } from '@angular/forms';
import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';

@Pipe({
    name: 'filter'
})
export class FilterPipe implements PipeTransform {
    transform(items: any, filter: any): any {
      if (filter && Array.isArray(items)) {
          let filterKeys = Object.keys(filter);
          return items.filter(item =>
              filterKeys.reduce((memo, keyName) =>
                  (memo && new RegExp(filter[keyName], 'gi').test(item[keyName])) || filter[keyName] === "", true));
      } else {
          return items;
      }
    }
}

const MULTISELECT_VALUE_ACCESSOR = {
  provide: NG_VALUE_ACCESSOR,
  useExisting: forwardRef(() => Multiselect),
  multi: true
};

@Component({
    selector: 'multiselect',
    templateUrl: 'templates/multiselect.html',
    host: {'(change)': 'manualChange($event)'},
    providers: [MULTISELECT_VALUE_ACCESSOR]
})

export class Multiselect implements OnInit, ControlValueAccessor {
  public _items: Array<any>;
  public _selectedItems: Array<any>;
  public isOpen: bool = false;
  public enableFilter: bool;
  public header: string = "Select some stuff";
  public filterText: string;
  public filterPlaceholder: string;
  public filterInput = new FormControl();
  private _subscription: Subscription;
  @Input() items: Observable<any[]>;
  
  // ControlValueAccessor Intercace and mutator
  private _onChange = (_: any) => {};
  private _onTouched = () => {};
  
    constructor(private _elRef: ElementRef, private _renderer: Renderer) {
  }
  
  get selected(): any {
      return this._selectedItems;
      console.log('got value');
  };
  
  writeValue(value: any) {
    console.log('writing value');
   if (value !== undefined) {
      this._selectedItems = value;
    } else  {
      this._selectedItems = [];
    }
  }
  
 registerOnChange(fn: (value: any) => any): void { this._onChange = fn; console.log(fn); }
 registerOnTouched(fn: () => any): void { this._onTouched = fn; }
  
  setDisabledState(isDisabled: boolean): void {
    this._renderer.setElementProperty(this._elRef.nativeElement, 'disabled', isDisabled);
//    if (this.isOpen()) {
//      this._cRef.instance.setDisabledState(isDisabled);
//    }
  }


    //set accessor including call the onchange callback
    set selectedItems(v: any) {
        if (v !== this._selectedItems) {
            this._selectedItems = v;
            this._onChange(v);
            console.log('set value');
        }
    }
    
    manualChange() {
      this._onChange(this._selectedItems);
    }
  
  select(item: any) {
    item.checked = !item.checked;
    this._onChange(this._selectedItems);
    console.log('executing callback'); 
  }
  
  toggleSelect() {
    this.isOpen = !this.isOpen;
  }
  
  clearFilter() {
    this.filterText = "";
  }
  
  ngOnInit() {
    this._subscription = this.items.subscribe(res => this._items = res);
    this.enableFilter = true;
    this.filterText = "";
    this.filterPlaceholder = "Filter..";
    
    this.filterInput
      .valueChanges
      .debounceTime(200)
      .subscribe(term => {
        this.filterText = term;
        console.log(term);
      });
  }
}
import { ModuleWithProviders }  from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { Route1Component }  from './route1.component';
import { Route2Component }  from './route2.component';
import { Route3Component }  from './route3.component';
import { NavigationService } from './services/navigation.service';

const appRoutes: Routes = [
    { path: '', component: Route1Component, data: { name: 'Route1' }, canDeactivate: [ NavigationService ] },
    { path: 'route2', component: Route2Component, data: { name: 'Route2' }, canDeactivate: [ NavigationService ]  },
    { path: 'route3', component: Route3Component, data: { name: 'Route3' }, canDeactivate: [ NavigationService ]  }
];

export const routing: ModuleWithProviders = RouterModule.forRoot(appRoutes);
import { Component,Input, Injectable, ApplicationRef, ChangeDetectorRef, ChangeDetectionStrategy } from '@angular/core';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
import { Multiselect } from './multiselect.component';
import { ApiService } from './services/api.service';
import {Observable} from 'rxjs/Rx';
import {Pipe, PipeTransform} from '@angular/core';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { FormGroup, FormControl } from '@angular/forms';

@Component({
    templateUrl: 'templates/route1.html',
    changeDetection: ChangeDetectionStrategy.OnPush
})

export class Route1Component implements OnInit {
    private _lipsum: any;
    public hasChanges: bool = true;
    private _items: Array<any>;
    public items: Observable<Array<any>>;
    
    constructor(private changeRef: ChangeDetectorRef, private appRef: ApplicationRef, private apiService: ApiService) {
      declare var LoremIpsum: any;
      this._lipsum = new LoremIpsum();
      this._items = [];
      this.items = Observable.of(this._items);
      this.items.subscribe(res => {
        console.log("Route1 subscription triggered.");
      });
    }

    canDeactivate() {
      console.log("Detecting changes. Has Changes: " + this.hasChanges);
      return Observable.of(!this.hasChanges);
    }
    
    createItems() {
      this._items.length = 0;
      var max: int = 20;
      var min: int = 10;
      var numItems: int = Math.floor(Math.random() * (max - min + 1)) + min; 
      console.log("Adding " + numItems.toString() + " items");
      max = 6;
      min = 3;
      var i: int;
      for (i =0; i < numItems; i++) {
        var numWords: int = Math.floor(Math.random() * (max - min + 1)) + min;
        var label: string = this._lipsum.generate(numWords); 
        this._items.push({ id: i, label: label, value: i.toString(), isSelected: true });
          console.log(label);
      }
      
      // Randomly choose a few items
      //this.randomSelect();
    }
    
    makeCall() {
      this.apiService
        .getUrl("index.html")
        .subscribe();
    }
    
    checkAll() {
      for (var i: int = 0; i < this._items.length; i++) {
        this._items[i].isSelected = true;
      }
    }
    
    uncheckAll() {
      for (var i: int = 0; i < this._items.length; i++) {
        this._items[i].isSelected = false;
      }
    }
    
    ngOnInit() {
      this.createItems();
    }
}
<div class="container-fluid">
  <hr>
  <p>
    <strong>Route 1</strong>
  </p>
  <hr>
  <label>
    <input type="checkbox" name="hasChanges" [(ngModel)]="hasChanges"> Has Changes
  </label>
  <hr>

  <table>
    <thead>
      <tr>
        <th class="header-check">
          <tri-state-checkbox class="toggle-all" [items]="items"></tri-state-checkbox>
        </th>
        <th>Id</th>
        <th>Name</th>
      </tr>
    </thead>
    <tbody>
      <tr *ngFor="let item of _items">
        <td class="td-checkbox"><input type="checkbox" name="ch" [(ngModel)]="item.isSelected"></td>
        <td class="td-checkbox" [innerHtml]="item.id"></td>
        <td class="td-checkbox" [innerHtml]="item.label"></td>
      </tr>
    </tbody>
  </table>
<hr>
<!--  <button type="button" class="btn btn-default" (click)="makeCall()">Make API Call</button> -->
<button type="button" class="btn btn-default" (click)="checkAll()">Check All</button>
<button type="button" class="btn btn-default" (click)="uncheckAll()">Clear All</button>
</div>
import { Injectable }    from '@angular/core';
import { CanDeactivate } from '@angular/router';
import { CanActivate } from '@angular/router';
import { Observable }    from 'rxjs/Observable';
import 'rxjs/add/observable/of';
import 'rxjs/add/operator/do';
import 'rxjs/add/operator/delay';
import { DialogService } from './dialog.service';

export interface CanComponentDeactivate {
 canDeactivate: () => Observable<boolean> | Promise<boolean> | boolean;
}

@Injectable()
export class NavigationService implements CanDeactivate<CanComponentDeactivate>, CanActivate {
  constructor(private dialogService: DialogService) {}
    
  canDeactivate(component: CanComponentDeactivate) {
    if (!component.canDeactivate) {
      return new Promise<boolean>(resolve => { return resolve(true); });
    }
    
    var retValue = component.canDeactivate();
      
    if (retValue instanceof Observable) {
      console.log("We have an observable");
      return this.intercept(retValue);
    } else {
      console.log("We have a promise");
      return retValue;
    }
  }
  
  private intercept(observable: Observable<any>): Observable<any> {
    return observable
      .map((res) => { console.log("Mapped: " + res); return res; })
      .flatMap((res) => {
        // Inverse logic - false means deactivate of route is not allowed (hasChanges is true) 
        if (res === false) {
          console.log("Showing confirm dialog.");
          var modalPromise = this.dialogService.confirm();
          var newObservable = Observable.fromPromise(modalPromise);
          newObservable.subscribe((res) => {
            if (res === true) {
              console.log("Navigation allowed.");
            } else {
              console.log("Navigation prevented.");
            }
          })
          return newObservable; 
        } else {
          return Observable.of(res);
        }
      });
  }
}
import { Component,Input, Injectable, ApplicationRef, ChangeDetectorRef, ChangeDetectionStrategy } from '@angular/core';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
import { Multiselect } from './multiselect.component';
import {Observable} from 'rxjs/Rx';
import {Pipe, PipeTransform} from '@angular/core';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { FormGroup, FormControl } from '@angular/forms';

@Component({
    templateUrl: 'templates/route2.html',
    changeDetection: ChangeDetectionStrategy.OnPush
})

export class Route2Component implements OnInit {
    private _lipsum: any;
    public hasChanges: bool = true;
    
    constructor(private changeRef: ChangeDetectorRef, private appRef: ApplicationRef) {
        declare var LoremIpsum: any;
        this._lipsum = new LoremIpsum();
    }

    canDeactivate() {
      console.log("Detecting changes. Has Changes: " + this.hasChanges);
      return Observable.of(!this.hasChanges);
    }
    
    ngOnInit() {
    }
}
<div class="container-fluid">
  <hr>
  <p>
    <strong>Route 2</strong>
  </p>
  <hr>
    <label>
      <input type="checkbox" name="hasChanges" [(ngModel)]="hasChanges">
      Has Changes
  </label>
</div>
import { Injectable }    from '@angular/core';
import { Observable }    from 'rxjs/Observable';
import 'rxjs/add/observable/of';
import 'rxjs/add/operator/do';
import 'rxjs/add/operator/delay';
import {NgbModal, NgbModalOptions, NgbActiveModal,  ModalDismissReasons} from '@ng-bootstrap/ng-bootstrap';
import {Component, Input, OnInit, ApplicationRef, ChangeDetectorRef} from '@angular/core';

@Component({
  template: `
    <div class="modal-header">
      <h4 class="modal-title">{{ title }}</h4>
      <button type="button" class="close" aria-label="Close" (click)="activeModal.dismiss('Cross click')">
        <span aria-hidden="true">&times;</span>
      </button>
    </div>
    <div class="modal-body">
      <p>{{message}}</p>
    </div>
    <div class="modal-footer">
      <button type="button" class="btn btn-secondary" (click)="activeModal.close(false)">Cancel</button>
      <button type="button" class="btn btn-secondary" (click)="activeModal.close(true)">Ok</button>
    </div>
  `
})

export class DialogComponent implements OnInit {
  @Input() title;
  @Input() message;

  constructor(public activeModal: NgbActiveModal, public changeRef: ChangeDetectorRef) {
    console.log("DialogComponent construct");
  }
  
  ngOnInit() {
    console.log("DialogComponent init");
  }
}

@Injectable()
export class DialogService {
  
  constructor(private modalService: NgbModal) {}
  
  public confirm() {
    const modalRef = this.modalService.open(DialogComponent);
    modalRef.componentInstance.name = "Discard Changes?";
    modalRef.componentInstance.message = "Are you sure you want to discard your changes?";
    modalRef.componentInstance.changeRef.markForCheck();
    return modalRef.result;
  }
}
import { Component,Input, Injectable, ApplicationRef, ChangeDetectorRef, ChangeDetectionStrategy } from '@angular/core';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
import { Multiselect } from './multiselect.component';
import {Observable} from 'rxjs/Rx';
import {Pipe, PipeTransform} from '@angular/core';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { FormGroup, FormControl } from '@angular/forms';

@Component({
    templateUrl: 'templates/route3.html',
    changeDetection: ChangeDetectionStrategy.OnPush
})

export class Route3Component implements OnInit {
    private _lipsum: any;
    public hasChanges: bool = true;
    
    constructor(private changeRef: ChangeDetectorRef, private appRef: ApplicationRef) {
        declare var LoremIpsum: any;
        this._lipsum = new LoremIpsum();
    }

    canDeactivate() {
      console.log("Detecting changes. Has Changes: " + this.hasChanges);
      return Observable.of(!this.hasChanges);
    }
    
    ngOnInit() {
    }
}
<div class="container-fluid">
  <hr>
  <p>
    <strong>Route 3</strong>
  </p>
  <hr>
    <label>
      <input type="checkbox" name="hasChanges" [(ngModel)]="hasChanges">
      Has Changes
  </label>
</div>
/**
 * Copyright (c) 2011-2013 Felix Gnass
 * Licensed under the MIT license
 */

/*

Basic Usage:
============

$('#el').spin(); // Creates a default Spinner using the text color of #el.
$('#el').spin({ ... }); // Creates a Spinner using the provided options.

$('#el').spin(false); // Stops and removes the spinner.

Using Presets:
==============

$('#el').spin('small'); // Creates a 'small' Spinner using the text color of #el.
$('#el').spin('large', '#fff'); // Creates a 'large' white Spinner.

Adding a custom preset:
=======================

$.fn.spin.presets.flower = {
  lines: 9
  length: 10
  width: 20
  radius: 0
}

$('#el').spin('flower', 'red');

*/

(function (factory) {

    if (typeof exports == 'object') {
        // CommonJS
        factory(require('jquery'), require('spin'))
    }
    else if (typeof define == 'function' && define.amd) {
        // AMD, register as anonymous module
        define(['jquery', 'spin'], factory)
    }
    else {
        // Browser globals
        if (!window.Spinner) throw new Error('Spin.js not present')
        factory(window.jQuery, window.Spinner)
    }

}(function ($, Spinner) {
    var modal_opts = {
        lines: 11, // The number of lines to draw
        length: 23, // The length of each line
        width: 8, // The line thickness
        radius: 40, // The radius of the inner circle
        corners: 1, // Corner roundness (0..1)
        rotate: 9, // The rotation offset
        color: '#FFF', // #rgb or #rrggbb
        speed: 1, // Rounds per second
        trail: 50, // Afterglow percentage
        shadow: true, // Whether to render a shadow
        hwaccel: false, // Whether to use hardware acceleration
        className: 'spinner', // The CSS class to assign to the spinner
        zIndex: 2e9, // The z-index (defaults to 2000000000)
        top: 'auto', // Top position relative to parent in px
        left: 'auto' // Left position relative to parent in px
    };

    $.fn.spin = function (opts, color, bgColor) {
        if (opts == "modal") opts = modal_opts;
        return this.each(function () {
            var $this = $(this),
              data = $this.data();

            if (data.spinner) {
                data.spinner.stop();
                delete data.spinner;
                if (opts == modal_opts) {
                    $("#spin_modal_overlay").remove();
                    return;
                }
            }
            if (opts !== false) {
                var spinElem = this;
                if (opts == modal_opts) {
                    var backgroundColor = 'background-color:' + (bgColor ? bgColor : 'rgba(0, 0, 0, 0.6)');
                    $('body').append('<div id="spin_modal_overlay" style=\"' + backgroundColor + ';width:100%; height:100%; position:fixed; top:0px; left:0px; z-index:' + (opts.zIndex - 1) + '"/>');
                    spinElem = $("#spin_modal_overlay")[0];
                }

                opts = $.extend({}, $.fn.spin.presets[opts] || opts, { color: color || $this.css('color') });
                data.spinner = new Spinner(opts).spin(spinElem);
            }
        })
    }

    $.fn.spin.presets = {
        tiny: { lines: 8, length: 2, width: 2, radius: 3 },
        small: { lines: 8, length: 4, width: 3, radius: 5 },
        large: { lines: 10, length: 8, width: 4, radius: 8 }
    }
}));
/**
 * Copyright (c) 2011-2013 Felix Gnass
 * Licensed under the MIT license
 */
(function (root, factory) {

    /* CommonJS */
    if (typeof exports == 'object') module.exports = factory()

        /* AMD module */
    else if (typeof define == 'function' && define.amd) define(factory)

        /* Browser global */
    else root.Spinner = factory()
}
(this, function () {
    "use strict";

    var prefixes = ['webkit', 'Moz', 'ms', 'O'] /* Vendor prefixes */
      , animations = {} /* Animation rules keyed by their name */
      , useCssAnimations /* Whether to use CSS animations or setTimeout */

    /**
     * Utility function to create elements. If no tag name is given,
     * a DIV is created. Optionally properties can be passed.
     */
    function createEl(tag, prop) {
        var el = document.createElement(tag || 'div')
          , n

        for (n in prop) el[n] = prop[n]
        return el
    }

    /**
     * Appends children and returns the parent.
     */
    function ins(parent /* child1, child2, ...*/) {
        for (var i = 1, n = arguments.length; i < n; i++)
            parent.appendChild(arguments[i])

        return parent
    }

    /**
     * Insert a new stylesheet to hold the @keyframe or VML rules.
     */
    var sheet = (function () {
        var el = createEl('style', { type: 'text/css' })
        ins(document.getElementsByTagName('head')[0], el)
        return el.sheet || el.styleSheet
    }())

    /**
     * Creates an opacity keyframe animation rule and returns its name.
     * Since most mobile Webkits have timing issues with animation-delay,
     * we create separate rules for each line/segment.
     */
    function addAnimation(alpha, trail, i, lines) {
        var name = ['opacity', trail, ~~(alpha * 100), i, lines].join('-')
          , start = 0.01 + i / lines * 100
          , z = Math.max(1 - (1 - alpha) / trail * (100 - start), alpha)
          , prefix = useCssAnimations.substring(0, useCssAnimations.indexOf('Animation')).toLowerCase()
          , pre = prefix && '-' + prefix + '-' || ''

        if (!animations[name]) {
            sheet.insertRule(
              '@' + pre + 'keyframes ' + name + '{' +
              '0%{opacity:' + z + '}' +
              start + '%{opacity:' + alpha + '}' +
              (start + 0.01) + '%{opacity:1}' +
              (start + trail) % 100 + '%{opacity:' + alpha + '}' +
              '100%{opacity:' + z + '}' +
              '}', sheet.cssRules.length)

            animations[name] = 1
        }

        return name
    }

    /**
     * Tries various vendor prefixes and returns the first supported property.
     */
    function vendor(el, prop) {
        var s = el.style
          , pp
          , i

        prop = prop.charAt(0).toUpperCase() + prop.slice(1)
        for (i = 0; i < prefixes.length; i++) {
            pp = prefixes[i] + prop
            if (s[pp] !== undefined) return pp
        }
        if (s[prop] !== undefined) return prop
    }

    /**
     * Sets multiple style properties at once.
     */
    function css(el, prop) {
        for (var n in prop)
            el.style[vendor(el, n) || n] = prop[n]

        return el
    }

    /**
     * Fills in default values.
     */
    function merge(obj) {
        for (var i = 1; i < arguments.length; i++) {
            var def = arguments[i]
            for (var n in def)
                if (obj[n] === undefined) obj[n] = def[n]
        }
        return obj
    }

    /**
     * Returns the absolute page-offset of the given element.
     */
    function pos(el) {
        var o = { x: el.offsetLeft, y: el.offsetTop }
        while ((el = el.offsetParent))
            o.x += el.offsetLeft, o.y += el.offsetTop

        return o
    }

    /**
     * Returns the line color from the given string or array.
     */
    function getColor(color, idx) {
        return typeof color == 'string' ? color : color[idx % color.length]
    }

    // Built-in defaults

    var defaults = {
        lines: 12,            // The number of lines to draw
        length: 7,            // The length of each line
        width: 5,             // The line thickness
        radius: 10,           // The radius of the inner circle
        rotate: 0,            // Rotation offset
        corners: 1,           // Roundness (0..1)
        color: '#000',        // #rgb or #rrggbb
        direction: 1,         // 1: clockwise, -1: counterclockwise
        speed: 1,             // Rounds per second
        trail: 100,           // Afterglow percentage
        opacity: 1 / 4,         // Opacity of the lines
        fps: 20,              // Frames per second when using setTimeout()
        zIndex: 2e9,          // Use a high z-index by default
        className: 'spinner', // CSS class to assign to the element
        top: 'auto',          // center vertically
        left: 'auto',         // center horizontally
        position: 'relative'  // element position
    }

    /** The constructor */
    function Spinner(o) {
        if (typeof this == 'undefined') return new Spinner(o)
        this.opts = merge(o || {}, Spinner.defaults, defaults)
    }

    // Global defaults that override the built-ins:
    Spinner.defaults = {}

    merge(Spinner.prototype, {

        /**
         * Adds the spinner to the given target element. If this instance is already
         * spinning, it is automatically removed from its previous target b calling
         * stop() internally.
         */
        spin: function (target) {
            this.stop()

            var self = this
              , o = self.opts
              , el = self.el = css(createEl(0, { className: o.className }), { position: o.position, width: 0, zIndex: o.zIndex })
              , mid = o.radius + o.length + o.width
              , ep // element position
              , tp // target position

            if (target) {
                target.insertBefore(el, target.firstChild || null)
                tp = pos(target)
                ep = pos(el)
                css(el, {
                    left: (o.left == 'auto' ? tp.x - ep.x + (target.offsetWidth >> 1) : parseInt(o.left, 10) + mid) + 'px',
                    top: (o.top == 'auto' ? tp.y - ep.y + (target.offsetHeight >> 1) : parseInt(o.top, 10) + mid) + 'px'
                })
            }

            el.setAttribute('role', 'progressbar')
            self.lines(el, self.opts)

            if (!useCssAnimations) {
                // No CSS animation support, use setTimeout() instead
                var i = 0
                  , start = (o.lines - 1) * (1 - o.direction) / 2
                  , alpha
                  , fps = o.fps
                  , f = fps / o.speed
                  , ostep = (1 - o.opacity) / (f * o.trail / 100)
                  , astep = f / o.lines

                ; (function anim() {
                    i++;
                    for (var j = 0; j < o.lines; j++) {
                        alpha = Math.max(1 - (i + (o.lines - j) * astep) % f * ostep, o.opacity)

                        self.opacity(el, j * o.direction + start, alpha, o)
                    }
                    self.timeout = self.el && setTimeout(anim, ~~(1000 / fps))
                })()
            }
            return self
        },

        /**
         * Stops and removes the Spinner.
         */
        stop: function () {
            var el = this.el
            if (el) {
                clearTimeout(this.timeout)
                if (el.parentNode) el.parentNode.removeChild(el)
                this.el = undefined
            }
            return this
        },

        /**
         * Internal method that draws the individual lines. Will be overwritten
         * in VML fallback mode below.
         */
        lines: function (el, o) {
            var i = 0
              , start = (o.lines - 1) * (1 - o.direction) / 2
              , seg

            function fill(color, shadow) {
                return css(createEl(), {
                    position: 'absolute',
                    width: (o.length + o.width) + 'px',
                    height: o.width + 'px',
                    background: color,
                    boxShadow: shadow,
                    transformOrigin: 'left',
                    transform: 'rotate(' + ~~(360 / o.lines * i + o.rotate) + 'deg) translate(' + o.radius + 'px' + ',0)',
                    borderRadius: (o.corners * o.width >> 1) + 'px'
                })
            }

            for (; i < o.lines; i++) {
                seg = css(createEl(), {
                    position: 'absolute',
                    top: 1 + ~(o.width / 2) + 'px',
                    transform: o.hwaccel ? 'translate3d(0,0,0)' : '',
                    opacity: o.opacity,
                    animation: useCssAnimations && addAnimation(o.opacity, o.trail, start + i * o.direction, o.lines) + ' ' + 1 / o.speed + 's linear infinite'
                })

                if (o.shadow) ins(seg, css(fill('#000', '0 0 4px ' + '#000'), { top: 2 + 'px' }))
                ins(el, ins(seg, fill(getColor(o.color, i), '0 0 1px rgba(0,0,0,.1)')))
            }
            return el
        },

        /**
         * Internal method that adjusts the opacity of a single line.
         * Will be overwritten in VML fallback mode below.
         */
        opacity: function (el, i, val) {
            if (i < el.childNodes.length) el.childNodes[i].style.opacity = val
        }

    })


    function initVML() {

        /* Utility function to create a VML tag */
        function vml(tag, attr) {
            return createEl('<' + tag + ' xmlns="urn:schemas-microsoft.com:vml" class="spin-vml">', attr)
        }

        // No CSS transforms but VML support, add a CSS rule for VML elements:
        sheet.addRule('.spin-vml', 'behavior:url(#default#VML)')

        Spinner.prototype.lines = function (el, o) {
            var r = o.length + o.width
              , s = 2 * r

            function grp() {
                return css(
                  vml('group', {
                      coordsize: s + ' ' + s,
                      coordorigin: -r + ' ' + -r
                  }),
                  { width: s, height: s }
                )
            }

            var margin = -(o.width + o.length) * 2 + 'px'
              , g = css(grp(), { position: 'absolute', top: margin, left: margin })
              , i

            function seg(i, dx, filter) {
                ins(g,
                  ins(css(grp(), { rotation: 360 / o.lines * i + 'deg', left: ~~dx }),
                    ins(css(vml('roundrect', { arcsize: o.corners }), {
                        width: r,
                        height: o.width,
                        left: o.radius,
                        top: -o.width >> 1,
                        filter: filter
                    }),
                      vml('fill', { color: getColor(o.color, i), opacity: o.opacity }),
                      vml('stroke', { opacity: 0 }) // transparent stroke to fix color bleeding upon opacity change
                    )
                  )
                )
            }

            if (o.shadow)
                for (i = 1; i <= o.lines; i++)
                    seg(i, -2, 'progid:DXImageTransform.Microsoft.Blur(pixelradius=2,makeshadow=1,shadowopacity=.3)')

            for (i = 1; i <= o.lines; i++) seg(i)
            return ins(el, g)
        }

        Spinner.prototype.opacity = function (el, i, val, o) {
            var c = el.firstChild
            o = o.shadow && o.lines || 0
            if (c && i + o < c.childNodes.length) {
                c = c.childNodes[i + o]; c = c && c.firstChild; c = c && c.firstChild
                if (c) c.opacity = val
            }
        }
    }

    var probe = css(createEl('group'), { behavior: 'url(#default#VML)' })

    if (!vendor(probe, 'transform') && probe.adj) initVML()
    else useCssAnimations = vendor(probe, 'animation')

    return Spinner

}));
import { Injectable } from '@angular/core';
import { Observable } from 'rxjs/Observable';
import 'rxjs/add/operator/map';
import 'rxjs/add/operator/catch';
import 'rxjs/add/operator/do';
import 'rxjs/add/operator/finally';
import { Http, XHRBackend, RequestOptions, Request, RequestOptionsArgs, Response, Headers } from '@angular/http';
declare var $: any;

@Injectable()
export class HttpService extends Http {
  public pendingRequests: int = 0;
  public showLoading: bool = false;

  constructor(backend: XHRBackend, defaultOptions: RequestOptions) {
    super(backend, defaultOptions);
  }

 request(url: string | Request, options?: RequestOptionsArgs): Observable<Response> {
      return this.intercept(super.request(url, options));
  }

  get(url: string, options?: RequestOptionsArgs): Observable<Response> {
      return this.intercept(super.get(url,options));
  }

  post(url: string, body: string, options?: RequestOptionsArgs): Observable<Response> {   
      return this.intercept(super.post(url, body, this.getRequestOptionArgs(options)));
  }

  put(url: string, body: string, options?: RequestOptionsArgs): Observable<Response> {
      return this.intercept(super.put(url, body, this.getRequestOptionArgs(options)));
  }

  delete(url: string, options?: RequestOptionsArgs): Observable<Response> {
      return this.intercept(super.delete(url, options));
  }
  
  getRequestOptionArgs(options?: RequestOptionsArgs) : RequestOptionsArgs {
    return options;
  }

  intercept(observable: Observable<Response>): Observable<Response> {
    console.log("In the intercept routine..");
    this.pendingRequests++;
    return observable
      .catch((err, source) => {
        console.log("Caught error: " + err);
      })
      .do((res: Response) => {
        console.log("Response: " + res);
        this.turnOnModal();
      }, (err: any) => {
        this.turnOffModal();
        console.log("Caught error: " + err);
      })
      .finally(() => {
        console.log("Finally.. delaying, though.")
        var timer = Observable.timer(1000);
        timer.subscribe(t => {
          this.turnOffModal();
        });
      });
    }
  
  private turnOnModal() {
    if (!this.showLoading) {
        this.showLoading = true;
        $('body').spin("modal", "#FFFFFF", "rgba(51, 51, 51, 0.1)");
        console.log("Turned on modal");
    }
    this.showLoading = true;
  }
  
  private turnOffModal() {
    this.pendingRequests--;
    if (this.pendingRequests <= 0) {
      if (this.showLoading) {
        $('body').spin("modal", "#FFFFFF", "rgba(51, 51, 51, 0.1)");
      }
      this.showLoading = false;
    }
    console.log("Turned off modal");
  }
}
import { Injectable } from '@angular/core';
import { Http, Response, RequestOptions, Headers, Request, RequestMethod } from '@angular/http';
import {Observable} from 'rxjs/Observable';
import 'rxjs/add/operator/map';
import 'rxjs/add/operator/catch';

@Injectable()
export class ApiService {
  constructor(private http: Http) {
      declare var LoremIpsum: any;
      this._lipsum = new LoremIpsum();
  }
  
  getUrl(url: string) {
    console.log("In API Service.. making arbitrary call.");
    var headers = new Headers();
    var requestOptions = new RequestOptions({
      method: RequestMethod.Get,
      url: url,
      headers: headers,
      body: ''
    });
    
    
    return this.http
      .request(new Request(requestOptions))
      .map((res: Response) => {
        return "done";
        console.log(res);
      });
    }
  }
import {Component,Input,Output,OnInit,DoChange,ViewChild,EventEmitter,ChangeDetectionStrategy, ChangeDetectorRef, Renderer, ElementRef, forwardRef} from '@angular/core';
import {Pipe, PipeTransform} from '@angular/core';
import {Observable} from 'rxjs/Rx';
import 'rxjs/add/operator/debounceTime';
import 'rxjs/add/operator/throttleTime';
import 'rxjs/add/observable/fromEvent';
import 'rxjs/add/operator/distinctUntilChanged';

@Component({
    selector: 'tri-state-checkbox',
    template: `<input #theCheckbox type="checkbox" [(ngModel)]="topLevel" (change)="topLevelChange()">`
})

export class Tristate implements AfterViewInit, DoChange  {
  public topLevel: bool = false;
  public _items: Array<any>;
  private _subscription: Subscription;
  @Input() items: Observable<any[]>;
  @ViewChild("theCheckbox") checkbox;
  
  constructor(private _changeDetectorRef: ChangeDetectorRef) { }
    
  private setState() {
    if (!this._items) return;
    var count: int = 0;
    for (var i: int = 0; i < this._items.length; i++) {
      count += this._items[i].isSelected ? 1 : 0;
    }
    this.topLevel = (count === 0) ? false : true;
    if (count > 0 && count< i) {
      console.log("Setting indeterminate.");
      this.checkbox.nativeElement.indeterminate = true;
    } else {
      console.log("Removing indeterminate.");
      this.checkbox.nativeElement.indeterminate = false;
    }
  }
  
  ngDoCheck() {
    this.setState();
  }
  
  public topLevelChange() {
    console.log("Clicked. " + this.topLevel);
    for (var i: int = 0; i < this._items.length; i++) {
      this._items[i].isSelected = this.topLevel;
    }
  }
  
  ngOnInit() { }
  
  ngAfterViewInit() {
    this._subscription = this.items.subscribe(res => {
      console.log("Subscription triggered.");
      this._items = res;
      this.setState();
      this._changeDetectorRef.detectChanges();
    });
  }
}