feat(inputs\multi-checkbox): add multi-checkbox directive

src/app/theme/components/baMultiCheckbox/baMultiCheckbox.component.ts

@@ -0,0 +1,45 @@
+import {Component, Input, Self} from '@angular/core';
+import {ControlValueAccessor, NgModel} from '@angular/forms';
+import {BaCheckbox} from '../baCheckbox';
+
+@Component({
+  selector: 'ba-multi-checkbox[ngModel]',
+  template: require('./baMultiCheckbox.html'),
+  directives: [BaCheckbox]
+})
+export class BaMultiCheckbox implements ControlValueAccessor {
+  @Input() baMultiCheckboxClass:string;
+  @Input() propertiesMapping:any;
+
+  public model: NgModel;
+  public state: boolean;
+
+  public constructor(@Self() state:NgModel) {
+    this.model = state;
+    state.valueAccessor = this;
+  }
+
+  public getProp(item: any, propName: string): string {
+    const prop = this.propertiesMapping[propName];
+
+    if (!prop) {
+      return item[propName];
+    } else if (typeof prop === 'function') {
+      return prop(item);
+    }
+    return item[prop];
+  }
+  public onChange(value: any): void {}
+  public onTouch(value: any): void {}
+  public writeValue(state: any): void {
+    this.state = state;
+  }
+
+  public registerOnChange(fn: any): void {
+    this.onChange = function(state: boolean) {
+      this.writeValue(state);
+      this.model.viewToModelUpdate(state);
+    }
+  }
+  public registerOnTouched(fn: any): void { this.onTouch = fn; }
+}

src/app/theme/components/baMultiCheckbox/baMultiCheckbox.html

@@ -0,0 +1,10 @@
+<div class="{{baMultiCheckboxClass}}">
+  <ba-checkbox *ngFor="let item of state"
+               [(ngModel)]="item[propertiesMapping.model]"
+               [baCheckboxClass]="getProp(item, 'baCheckboxClass')"
+               [label]="getProp(item, 'label')"
+               [disabled]="getProp(item, 'disabled')"
+               [value]="getProp(item, 'value')"
+               id="{{getProp(item, 'id')}}">
+  </ba-checkbox>
+</div>

src/app/theme/components/baMultiCheckbox/index.ts

@@ -0,0 +1 @@
+export * from './baMultiCheckbox.component'