init

src/app/app-routing.module.ts

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+import { NgModule } from '@angular/core';
+import { Routes, RouterModule } from '@angular/router';
+
+const routes: Routes = [];
+
+@NgModule({
+  imports: [RouterModule.forRoot(routes)],
+  exports: [RouterModule]
+})
+export class AppRoutingModule { }

src/app/app.component.ts

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+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-root',
+  template: `
+    <!--The content below is only a placeholder and can be replaced.-->
+    <div style="text-align:center">
+      <h1>
+        Welcome to {{title}}!
+      </h1>
+      <img width="300" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNTAgMjUwIj4KICAgIDxwYXRoIGZpbGw9IiNERDAwMzEiIGQ9Ik0xMjUgMzBMMzEuOSA2My4ybDE0LjIgMTIzLjFMMTI1IDIzMGw3OC45LTQzLjcgMTQuMi0xMjMuMXoiIC8+CiAgICA8cGF0aCBmaWxsPSIjQzMwMDJGIiBkPSJNMTI1IDMwdjIyLjItLjFWMjMwbDc4LjktNDMuNyAxNC4yLTEyMy4xTDEyNSAzMHoiIC8+CiAgICA8cGF0aCAgZmlsbD0iI0ZGRkZGRiIgZD0iTTEyNSA1Mi4xTDY2LjggMTgyLjZoMjEuN2wxMS43LTI5LjJoNDkuNGwxMS43IDI5LjJIMTgzTDEyNSA1Mi4xem0xNyA4My4zaC0zNGwxNy00MC45IDE3IDQwLjl6IiAvPgogIDwvc3ZnPg==">
+    </div>
+    <h2>Here are some links to help you start: </h2>
+    <ul>
+      <li>
+        <h2><a target="_blank" rel="noopener" href="https://angular.io/tutorial">Tour of Heroes</a></h2>
+      </li>
+      <li>
+        <h2><a target="_blank" rel="noopener" href="https://angular.io/cli">CLI Documentation</a></h2>
+      </li>
+      <li>
+        <h2><a target="_blank" rel="noopener" href="https://blog.angular.io/">Angular blog</a></h2>
+      </li>
+    </ul>
+    <router-outlet></router-outlet>
+  `,
+  styles: []
+})
+export class AppComponent {
+  title = 'MapAlliance';
+}

src/app/app.module.ts

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+import {BrowserModule} from '@angular/platform-browser';
+import {NgModule} from '@angular/core';
+
+import {AppRoutingModule} from './app-routing.module';
+import {AppComponent} from './app.component';
+import {BrowserAnimationsModule} from '@angular/platform-browser/animations';
+import {ServiceWorkerModule} from '@angular/service-worker';
+import {environment} from '../environments/environment';
+import {FormsModule} from "@angular/forms";
+import {MatSnackBarModule} from "@angular/material";
+
+@NgModule({
+    declarations: [
+        AppComponent
+    ],
+    imports: [
+        BrowserModule,
+        AppRoutingModule,
+        BrowserAnimationsModule,
+        FormsModule,
+        MatSnackBarModule,
+        ServiceWorkerModule.register('ngsw-worker.js', {enabled: environment.production})
+    ],
+    providers: [],
+    bootstrap: [AppComponent]
+})
+export class AppModule {
+}

src/app/geolocation/geolocation.service.ts

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+import {Injectable} from '@angular/core';
+import {BehaviorSubject} from "rxjs";
+import {MatSnackBar} from "@angular/material";
+
+@Injectable({
+    providedIn: 'root'
+})
+export class GeolocationService {
+    location = new BehaviorSubject(null);
+
+    constructor(private snackBar: MatSnackBar) {
+        if(navigator.geolocation) {
+            navigator.geolocation.getCurrentPosition(this.updatePosition, this.errorHandler);
+        } else {
+            snackBar.open('Geolocation is not supported', null, {horizontalPosition: 'right', panelClass: 'bg-warn'});
+        }
+    }
+
+    updatePosition(position) {
+        this.location.next(position);
+    }
+
+    errorHandler(error) {
+        switch(error.code) {
+            case error.PERMISSION_DENIED:
+                this.snackBar.open('Geolocation permission denied', null, {horizontalPosition: 'right', panelClass: 'bg-warn'});
+                break;
+            case error.POSITION_UNAVAILABLE:
+                this.snackBar.open('Geolocation unavailable', null, {horizontalPosition: 'right', panelClass: 'bg-warn'});
+                break;
+            case error.TIMEOUT:
+                this.snackBar.open('Geolocation timeout', null, {horizontalPosition: 'right', panelClass: 'bg-warn'});
+                break;
+            case error.UNKNOWN_ERROR:
+                this.snackBar.open('Geolocation experienced an unknown error', null, {horizontalPosition: 'right', panelClass: 'bg-warn'});
+                break;
+        }
+    }
+}

src/environments/environment.prod.ts

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+export const environment = {
+  production: true
+};

src/environments/environment.ts

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+// This file can be replaced during build by using the `fileReplacements` array.
+// `ng build --prod` replaces `environment.ts` with `environment.prod.ts`.
+// The list of file replacements can be found in `angular.json`.
+
+export const environment = {
+  production: false
+};
+
+/*
+ * For easier debugging in development mode, you can import the following file
+ * to ignore zone related error stack frames such as `zone.run`, `zoneDelegate.invokeTask`.
+ *
+ * This import should be commented out in production mode because it will have a negative impact
+ * on performance if an error is thrown.
+ */
+// import 'zone.js/dist/zone-error';  // Included with Angular CLI.

src/index.html

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+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <title>MapAlliance</title>
+  <base href="/">
+
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <link rel="icon" type="image/x-icon" href="favicon.ico">
+  <link href="https://fonts.googleapis.com/css?family=Roboto:300,400,500" rel="stylesheet">
+  <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
+  <link rel="manifest" href="manifest.webmanifest">
+  <meta name="theme-color" content="#1976d2">
+</head>
+<body>
+  <app-root></app-root>
+  <noscript>Please enable JavaScript to continue using this application.</noscript>
+</body>
+</html>

src/main.ts

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+import 'hammerjs';
+import { enableProdMode } from '@angular/core';
+import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
+
+import { AppModule } from './app/app.module';
+import { environment } from './environments/environment';
+
+if (environment.production) {
+  enableProdMode();
+}
+
+platformBrowserDynamic().bootstrapModule(AppModule)
+  .catch(err => console.error(err));

src/manifest.webmanifest

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+{
+  "name": "MapAlliance",
+  "short_name": "MapAlliance",
+  "theme_color": "#1976d2",
+  "background_color": "#fafafa",
+  "display": "standalone",
+  "scope": "/",
+  "start_url": "/",
+  "icons": [
+    {
+      "src": "assets/icons/icon-72x72.png",
+      "sizes": "72x72",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-96x96.png",
+      "sizes": "96x96",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-128x128.png",
+      "sizes": "128x128",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-144x144.png",
+      "sizes": "144x144",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-152x152.png",
+      "sizes": "152x152",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-384x384.png",
+      "sizes": "384x384",
+      "type": "image/png"
+    },
+    {
+      "src": "assets/icons/icon-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    }
+  ]
+}

src/polyfills.ts

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+/**
+ * This file includes polyfills needed by Angular and is loaded before the app.
+ * You can add your own extra polyfills to this file.
+ *
+ * This file is divided into 2 sections:
+ *   1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
+ *   2. Application imports. Files imported after ZoneJS that should be loaded before your main
+ *      file.
+ *
+ * The current setup is for so-called "evergreen" browsers; the last versions of browsers that
+ * automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
+ * Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
+ *
+ * Learn more in https://angular.io/guide/browser-support
+ */
+
+/***************************************************************************************************
+ * BROWSER POLYFILLS
+ */
+
+/** IE10 and IE11 requires the following for NgClass support on SVG elements */
+// import 'classlist.js';  // Run `npm install --save classlist.js`.
+
+/**
+ * Web Animations `@angular/platform-browser/animations`
+ * Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.
+ * Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).
+ */
+// import 'web-animations-js';  // Run `npm install --save web-animations-js`.
+
+/**
+ * By default, zone.js will patch all possible macroTask and DomEvents
+ * user can disable parts of macroTask/DomEvents patch by setting following flags
+ * because those flags need to be set before `zone.js` being loaded, and webpack
+ * will put import in the top of bundle, so user need to create a separate file
+ * in this directory (for example: zone-flags.ts), and put the following flags
+ * into that file, and then add the following code before importing zone.js.
+ * import './zone-flags.ts';
+ *
+ * The flags allowed in zone-flags.ts are listed here.
+ *
+ * The following flags will work for all browsers.
+ *
+ * (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame
+ * (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick
+ * (window as any).__zone_symbol__UNPATCHED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames
+ *
+ *  in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js
+ *  with the following flag, it will bypass `zone.js` patch for IE/Edge
+ *
+ *  (window as any).__Zone_enable_cross_context_check = true;
+ *
+ */
+
+/***************************************************************************************************
+ * Zone JS is required by default for Angular itself.
+ */
+import 'zone.js/dist/zone';  // Included with Angular CLI.
+
+
+/***************************************************************************************************
+ * APPLICATION IMPORTS
+ */

src/styles.scss

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+/* You can add global styles to this file, and also import other style files */
+
+html, body { height: 100%; }
+body { margin: 0; font-family: Roboto, "Helvetica Neue", sans-serif; }