commit 0a36f3830b344d16809b087d91e76a3ee96b96d2
Author: Caesar2011 <mail@sebse.de>
Date:   Wed May 17 00:22:45 2017 +0200

    Initial commit

diff --git a/.idea/AngularCounterInput.iml b/.idea/AngularCounterInput.iml
new file mode 100644
index 0000000..24643cc
--- /dev/null
+++ b/.idea/AngularCounterInput.iml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.tmp" />
+      <excludeFolder url="file://$MODULE_DIR$/temp" />
+      <excludeFolder url="file://$MODULE_DIR$/tmp" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..bc8c5e8
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/AngularCounterInput.iml" filepath="$PROJECT_DIR$/.idea/AngularCounterInput.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/typescript-compiler.xml b/.idea/typescript-compiler.xml
new file mode 100644
index 0000000..17ff836
--- /dev/null
+++ b/.idea/typescript-compiler.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="TypeScriptCompiler">
+    <option name="isCompilerEnabled" value="true" />
+    <option name="useConfig" value="true" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/bs-config.json b/bs-config.json
new file mode 100644
index 0000000..4e58595
--- /dev/null
+++ b/bs-config.json
@@ -0,0 +1,8 @@
+{
+  "server": {
+    "baseDir": "src",
+    "routes": {
+      "/node_modules": "node_modules"
+    }
+  }
+}
diff --git a/node_modules/.gitignore b/node_modules/.gitignore
new file mode 100644
index 0000000..6b8fdaf
--- /dev/null
+++ b/node_modules/.gitignore
@@ -0,0 +1,3 @@
+node_modules/
+src/**/*.js
+src/**/*.js.map
\ No newline at end of file
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..dc47cd8
--- /dev/null
+++ b/package.json
@@ -0,0 +1,57 @@
+{
+  "name": "angular-counter-input",
+  "version": "1.0.0",
+  "description": "Angular Counter Input Test",
+  "main": "src/main.js",
+  "scripts": {
+    "build": "tsc -p src/",
+    "build:watch": "tsc -p src/ -w",
+    "serve": "lite-server -c=bs-config.json",
+    "prestart": "npm run build",
+    "start": "concurrently \"npm run build:watch\" \"npm run serve\"",
+    "lint": "tslint ./src/**/*.ts -t verbose"
+  },
+  "keywords": [
+    "angular2",
+    "counter",
+    "input"
+  ],
+  "author": "Sebastian Seedorf",
+  "license": "ISC",
+  "dependencies": {
+    "@angular/common": "~4.0.0",
+    "@angular/compiler": "~4.0.0",
+    "@angular/core": "~4.0.0",
+    "@angular/forms": "~4.0.0",
+    "@angular/http": "~4.0.0",
+    "@angular/platform-browser": "~4.0.0",
+    "@angular/platform-browser-dynamic": "~4.0.0",
+    "@angular/router": "~4.0.0",
+
+    "angular-in-memory-web-api": "~0.3.0",
+    "systemjs": "0.19.40",
+    "core-js": "^2.4.1",
+    "rxjs": "5.0.1",
+    "zone.js": "^0.8.4"
+  },
+  "devDependencies": {
+    "concurrently": "^3.2.0",
+    "lite-server": "^2.2.2",
+    "typescript": "~2.1.0",
+
+    "canonical-path": "0.0.2",
+    "tslint": "^3.15.1",
+    "lodash": "^4.16.4",
+    "jasmine-core": "~2.4.1",
+    "karma": "^1.3.0",
+    "karma-chrome-launcher": "^2.0.0",
+    "karma-cli": "^1.0.1",
+    "karma-jasmine": "^1.0.2",
+    "karma-jasmine-html-reporter": "^0.2.2",
+    "protractor": "~4.0.14",
+    "rimraf": "^2.5.4",
+
+    "@types/node": "^6.0.46",
+    "@types/jasmine": "2.5.36"
+  }
+}
diff --git a/src/app/app.component.ts b/src/app/app.component.ts
new file mode 100644
index 0000000..7b11a65
--- /dev/null
+++ b/src/app/app.component.ts
@@ -0,0 +1,16 @@
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'my-app',
+  template: `<form #form="ngForm">
+      <json-input [(ngModel)]="result" name="res"></json-input>
+  </form>
+
+  <p>form is valid: {{ form.valid ? 'true' : 'false' }}</p>
+
+  <p>Value:</p>
+  <pre>{{ result | json }}</pre>`,
+})
+export class AppComponent  {
+  public result = 10;
+}
diff --git a/src/app/app.module.ts b/src/app/app.module.ts
new file mode 100644
index 0000000..96f0cff
--- /dev/null
+++ b/src/app/app.module.ts
@@ -0,0 +1,18 @@
+import { NgModule }      from '@angular/core';
+import { BrowserModule } from '@angular/platform-browser';
+
+import { AppComponent }  from './app.component';
+import {JsonInputModule} from "./json-input.module";
+import {FormsModule, ReactiveFormsModule} from "@angular/forms";
+
+@NgModule({
+  imports: [
+    BrowserModule,
+    FormsModule,
+    ReactiveFormsModule,
+    JsonInputModule,
+  ],
+  declarations: [ AppComponent ],
+  bootstrap:    [ AppComponent ]
+})
+export class AppModule { }
diff --git a/src/app/json-input.component.ts b/src/app/json-input.component.ts
new file mode 100644
index 0000000..eadb75d
--- /dev/null
+++ b/src/app/json-input.component.ts
@@ -0,0 +1,73 @@
+import { Component, Input, forwardRef } from '@angular/core';
+import { ControlValueAccessor, NG_VALUE_ACCESSOR, NG_VALIDATORS, FormControl, Validator } from '@angular/forms';
+
+@Component({
+  selector: 'json-input',
+  template:
+      `
+    <button (click)="onChange($event, -1)">-</button>
+      <div>{{value}}</div>
+    <button (click)="onChange($event, 1)">+</button>
+  `,
+  providers: [
+    {
+      provide: NG_VALUE_ACCESSOR,
+      useExisting: forwardRef(() => JsonInputComponent),
+      multi: true,
+    },
+    {
+      provide: NG_VALIDATORS,
+      useExisting: forwardRef(() => JsonInputComponent),
+      multi: true,
+    }]
+})
+export class JsonInputComponent implements ControlValueAccessor, Validator {
+  private value: number;
+  private parseError: boolean;
+
+  // this is the initial value set to the component
+  public writeValue(obj: any) {
+    if (obj) {
+      // this will format it with 4 character spacing
+      this.value = parseInt(obj) || 0;
+    }
+  }
+
+  // registers 'fn' that will be fired wheb changes are made
+  // this is how we emit the changes back to the form
+  public registerOnChange(fn: any) {
+    this.propagateChange = fn;
+  }
+
+  // validates the form, returns null when valid else the validation object
+  // in this case we're checking if the json parsing has passed or failed from the onChange method
+  public validate(c: FormControl) {
+    return (!this.parseError) ? null : {
+      jsonParseError: {
+        valid: false,
+      },
+    };
+  }
+
+  // not used, used for touch input
+  public registerOnTouched() { }
+
+  // change events from the textarea
+  private onChange(event: any, number: number) {
+
+    // get value from text area
+    this.value = this.value + number;
+    if (isNaN(this.value)) {
+      this.parseError = false;
+    } else {
+      // set parse error if it fails
+      this.parseError = true;
+    }
+
+    // update the form
+    this.propagateChange(this.value);
+  }
+
+  // the method set in registerOnChange to emit changes back to the form
+  private propagateChange: (_: any) => void = () => { };
+}
\ No newline at end of file
diff --git a/src/app/json-input.module.ts b/src/app/json-input.module.ts
new file mode 100644
index 0000000..b0ed74d
--- /dev/null
+++ b/src/app/json-input.module.ts
@@ -0,0 +1,20 @@
+import {FormsModule} from '@angular/forms';
+import { CommonModule } from '@angular/common';
+import { NgModule } from '@angular/core';
+import { JsonInputComponent }   from './json-input.component';
+
+
+@NgModule({
+  imports: [
+    CommonModule,
+    FormsModule,
+  ],
+  exports: [
+    JsonInputComponent,
+  ],
+  declarations: [
+    JsonInputComponent,
+  ],
+  providers: [],
+})
+export class JsonInputModule { }
diff --git a/src/index.html b/src/index.html
new file mode 100644
index 0000000..8327435
--- /dev/null
+++ b/src/index.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Angular QuickStart</title>
+    <base href="/">
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <link rel="stylesheet" href="styles.css">
+
+    <!-- Polyfill(s) for older browsers -->
+    <script src="node_modules/core-js/client/shim.min.js"></script>
+
+    <script src="node_modules/zone.js/dist/zone.js"></script>
+    <script src="node_modules/systemjs/dist/system.src.js"></script>
+
+    <script src="systemjs.config.js"></script>
+    <script>
+      System.import('main.js').catch(function(err){ console.error(err); });
+    </script>
+  </head>
+
+  <body>
+    <my-app>Loading AppComponent content here ...</my-app>
+  </body>
+</html>
diff --git a/src/main.ts b/src/main.ts
new file mode 100644
index 0000000..311c44b
--- /dev/null
+++ b/src/main.ts
@@ -0,0 +1,5 @@
+import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
+
+import { AppModule } from './app/app.module';
+
+platformBrowserDynamic().bootstrapModule(AppModule);
diff --git a/src/styles.css b/src/styles.css
new file mode 100644
index 0000000..58e1a7d
--- /dev/null
+++ b/src/styles.css
@@ -0,0 +1,5 @@
+h1 {
+  color: #369;
+  font-family: Arial, Helvetica, sans-serif;
+  font-size: 250%;
+}
diff --git a/src/systemjs-angular-loader.js b/src/systemjs-angular-loader.js
new file mode 100644
index 0000000..8b10054
--- /dev/null
+++ b/src/systemjs-angular-loader.js
@@ -0,0 +1,49 @@
+var templateUrlRegex = /templateUrl\s*:(\s*['"`](.*?)['"`]\s*)/gm;
+var stylesRegex = /styleUrls *:(\s*\[[^\]]*?\])/g;
+var stringRegex = /(['`"])((?:[^\\]\\\1|.)*?)\1/g;
+
+module.exports.translate = function(load){
+  if (load.source.indexOf('moduleId') != -1) return load;
+
+  var url = document.createElement('a');
+  url.href = load.address;
+
+  var basePathParts = url.pathname.split('/');
+
+  basePathParts.pop();
+  var basePath = basePathParts.join('/');
+
+  var baseHref = document.createElement('a');
+  baseHref.href = this.baseURL;
+  baseHref = baseHref.pathname;
+
+  if (!baseHref.startsWith('/base/')) { // it is not karma
+    basePath = basePath.replace(baseHref, '');
+  }
+
+  load.source = load.source
+    .replace(templateUrlRegex, function(match, quote, url){
+      var resolvedUrl = url;
+
+      if (url.startsWith('.')) {
+        resolvedUrl = basePath + url.substr(1);
+      }
+
+      return 'templateUrl: "' + resolvedUrl + '"';
+    })
+    .replace(stylesRegex, function(match, relativeUrls) {
+      var urls = [];
+
+      while ((match = stringRegex.exec(relativeUrls)) !== null) {
+        if (match[2].startsWith('.')) {
+          urls.push('"' + basePath + match[2].substr(1) + '"');
+        } else {
+          urls.push('"' + match[2] + '"');
+        }
+      }
+
+      return "styleUrls: [" + urls.join(', ') + "]";
+    });
+
+  return load;
+};
diff --git a/src/systemjs.config.extras.js b/src/systemjs.config.extras.js
new file mode 100644
index 0000000..027dfe5
--- /dev/null
+++ b/src/systemjs.config.extras.js
@@ -0,0 +1,11 @@
+/**
+ * Add barrels and stuff
+ * Adjust as necessary for your application needs.
+ */
+// (function (global) {
+//   System.config({
+//     packages: {
+//       // add packages here
+//     }
+//   });
+// })(this);
diff --git a/src/systemjs.config.js b/src/systemjs.config.js
new file mode 100644
index 0000000..129704a
--- /dev/null
+++ b/src/systemjs.config.js
@@ -0,0 +1,45 @@
+/**
+ * System configuration for Angular samples
+ * Adjust as necessary for your application needs.
+ */
+(function (global) {
+  System.config({
+    paths: {
+      // paths serve as alias
+      'npm:': 'node_modules/'
+    },
+    // map tells the System loader where to look for things
+    map: {
+      // our app is within the app folder
+      'app': 'app',
+
+      // 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',
+
+      // other libraries
+      'rxjs':                      'npm:rxjs',
+      'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js'
+    },
+    // packages tells the System loader how to load when no filename and/or no extension
+    packages: {
+      app: {
+        defaultExtension: 'js',
+        meta: {
+          './*.js': {
+            loader: 'systemjs-angular-loader.js'
+          }
+        }
+      },
+      rxjs: {
+        defaultExtension: 'js'
+      }
+    }
+  });
+})(this);
diff --git a/src/tsconfig.json b/src/tsconfig.json
new file mode 100644
index 0000000..2c7260d
--- /dev/null
+++ b/src/tsconfig.json
@@ -0,0 +1,13 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "sourceMap": true,
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "lib": [ "es2015", "dom" ],
+    "noImplicitAny": true,
+    "suppressImplicitAnyIndexErrors": true
+  }
+}
diff --git a/tslint.json b/tslint.json
new file mode 100644
index 0000000..276453f
--- /dev/null
+++ b/tslint.json
@@ -0,0 +1,93 @@
+{
+  "rules": {
+    "class-name": true,
+    "comment-format": [
+      true,
+      "check-space"
+    ],
+    "curly": true,
+    "eofline": true,
+    "forin": true,
+    "indent": [
+      true,
+      "spaces"
+    ],
+    "label-position": true,
+    "label-undefined": true,
+    "max-line-length": [
+      true,
+      140
+    ],
+    "member-access": false,
+    "member-ordering": [
+      true,
+      "static-before-instance",
+      "variables-before-functions"
+    ],
+    "no-arg": true,
+    "no-bitwise": true,
+    "no-console": [
+      true,
+      "debug",
+      "info",
+      "time",
+      "timeEnd",
+      "trace"
+    ],
+    "no-construct": true,
+    "no-debugger": true,
+    "no-duplicate-key": true,
+    "no-duplicate-variable": true,
+    "no-empty": false,
+    "no-eval": true,
+    "no-inferrable-types": true,
+    "no-shadowed-variable": true,
+    "no-string-literal": false,
+    "no-switch-case-fall-through": true,
+    "no-trailing-whitespace": true,
+    "no-unused-expression": true,
+    "no-unused-variable": true,
+    "no-unreachable": true,
+    "no-use-before-declare": true,
+    "no-var-keyword": true,
+    "object-literal-sort-keys": false,
+    "one-line": [
+      true,
+      "check-open-brace",
+      "check-catch",
+      "check-else",
+      "check-whitespace"
+    ],
+    "quotemark": [
+      true,
+      "single"
+    ],
+    "radix": true,
+    "semicolon": [
+      "always"
+    ],
+    "triple-equals": [
+      true,
+      "allow-null-check"
+    ],
+    "typedef-whitespace": [
+      true,
+      {
+        "call-signature": "nospace",
+        "index-signature": "nospace",
+        "parameter": "nospace",
+        "property-declaration": "nospace",
+        "variable-declaration": "nospace"
+      }
+    ],
+    "variable-name": false,
+    "whitespace": [
+      true,
+      "check-branch",
+      "check-decl",
+      "check-operator",
+      "check-separator",
+      "check-type"
+    ]
+  }
+}