5 files changed, 111 insertions, 0 deletions
diff --git a/src/angular/checklist/checklist.component.html.ts b/src/angular/checklist/checklist.component.html.ts
new file mode 100644
index 0000000..cb6f540
--- /dev/null
+++ b/src/angular/checklist/checklist.component.html.ts
@@ -0,0 +1,15 @@
+export default `
+<div *ngFor="let checkbox of checklistModel.checkboxes" #currentCheckbox>
+    <div class="checkbox-item">
+        <sdc-checkbox [label]="checkbox.label"
+                      [(checked)]="checkbox.isChecked"
+                      [disabled]="checkbox.disabled"
+                      (checkedChange)="checkboxCheckedChange(checkbox, checklistModel)"
+                      [ngClass]="{'semi-checked': !checkbox.isChecked && hasCheckedChild(currentCheckbox)}"></sdc-checkbox>
+    </div>
+    <div *ngIf="checkbox.subLevelChecklist" class="checkbox-sublist">
+        <sdc-checklist [checklistModel]="checkbox.subLevelChecklist"
+                   (checkedChange)="childCheckboxChange($event, checkbox)"></sdc-checklist>
+    </div>
+</div>
+`;
diff --git a/src/angular/checklist/checklist.component.ts b/src/angular/checklist/checklist.component.ts
new file mode 100644
index 0000000..386cd3e
--- /dev/null
+++ b/src/angular/checklist/checklist.component.ts
@@ -0,0 +1,50 @@
+import { Component, EventEmitter, Input, Output } from "@angular/core";
+import { ChecklistModel } from "./models/Checklist";
+import { ChecklistItemModel } from "./models/ChecklistItem";
+import template from "./checklist.component.html";
+
+@Component({
+    selector: 'sdc-checklist',
+    template: template
+})
+export class ChecklistComponent  {
+    @Input() public checklistModel: ChecklistModel;
+    @Output() public checkedChange: EventEmitter<ChecklistItemModel> = new EventEmitter<ChecklistItemModel>();
+
+    private checkboxCheckedChange(checkbox: ChecklistItemModel, currentChecklistModel: ChecklistModel, stopPropagation?: boolean) {
+        // push/pop the checkbox value
+        if (checkbox.isChecked) {
+            currentChecklistModel.selectedValues.push(checkbox.value);
+        }else {
+            const index: number = currentChecklistModel.selectedValues.indexOf(checkbox.value);
+            currentChecklistModel.selectedValues.splice(index, 1);
+        }
+        if (!stopPropagation) {
+            if (checkbox.subLevelChecklist &&
+                ((checkbox.isChecked && checkbox.subLevelChecklist.selectedValues.length < checkbox.subLevelChecklist.checkboxes.length) ||
+                (!checkbox.isChecked && checkbox.subLevelChecklist.selectedValues.length))) {
+                checkbox.subLevelChecklist.checkboxes.forEach((childCheckbox: ChecklistItemModel) => {
+                    if (childCheckbox.isChecked !== checkbox.isChecked) {
+                        childCheckbox.isChecked = checkbox.isChecked;
+                        this.checkboxCheckedChange(childCheckbox, checkbox.subLevelChecklist);
+                    }
+                });
+            }
+        }
+        // raise event
+        this.checkedChange.emit(checkbox);
+    }
+
+    private childCheckboxChange(updatedCheckbox: ChecklistItemModel, parentCheckbox: ChecklistItemModel) {
+        let updatedValues: any[] = parentCheckbox.subLevelChecklist.selectedValues;
+        if (parentCheckbox.isChecked !== (updatedValues.length === parentCheckbox.subLevelChecklist.checkboxes.length)) {
+            parentCheckbox.isChecked = updatedValues.length === parentCheckbox.subLevelChecklist.checkboxes.length;
+            this.checkboxCheckedChange(parentCheckbox, this.checklistModel, true);
+        }
+        this.checkedChange.emit(updatedCheckbox);
+    }
+
+    private hasCheckedChild(currentCheckbox: Element): boolean {
+        return !!currentCheckbox.querySelector(".sdc-checkbox__input:checked");
+    }
+}
diff --git a/src/angular/checklist/checklist.module.ts b/src/angular/checklist/checklist.module.ts
new file mode 100644
index 0000000..013bf9b
--- /dev/null
+++ b/src/angular/checklist/checklist.module.ts
@@ -0,0 +1,11 @@
+import { NgModule } from "@angular/core";
+import { ChecklistComponent } from "./checklist.component";
+import { CommonModule } from "@angular/common";
+import { FormElementsModule } from "../form-elements/form-elements.module";
+
+@NgModule({
+    declarations: [ChecklistComponent],
+    exports: [ChecklistComponent],
+    imports: [CommonModule, FormElementsModule]
+})
+export class ChecklistModule {}
diff --git a/src/angular/checklist/models/Checklist.ts b/src/angular/checklist/models/Checklist.ts
new file mode 100644
index 0000000..7b50dd3
--- /dev/null
+++ b/src/angular/checklist/models/Checklist.ts
@@ -0,0 +1,18 @@
+import { ChecklistItemModel } from "./ChecklistItem";
+
+export class ChecklistModel {
+    public selectedValues: any[];
+    public checkboxes: ChecklistItemModel[];
+    constructor(selectedValues: any[], checkboxes: ChecklistItemModel[]) {
+        this.selectedValues = selectedValues || [];
+        this.checkboxes = checkboxes;
+        // align the selected values list and checkboxes isChecked param
+        this.checkboxes.forEach((checkbox: ChecklistItemModel) => {
+            if (this.selectedValues.indexOf(checkbox.value) > -1) {
+                checkbox.isChecked = true;
+            }else if (checkbox.isChecked) {
+                this.selectedValues.push(checkbox.value);
+            }
+        });
+    }
+}
diff --git a/src/angular/checklist/models/ChecklistItem.ts b/src/angular/checklist/models/ChecklistItem.ts
new file mode 100644
index 0000000..e2d812a
--- /dev/null
+++ b/src/angular/checklist/models/ChecklistItem.ts
@@ -0,0 +1,17 @@
+import { ChecklistModel } from "./Checklist";
+import { isUndefined } from "util";
+
+export class ChecklistItemModel {
+    public label: string;
+    public value: any;
+    public disabled: boolean;
+    public isChecked: boolean;
+    public subLevelChecklist: ChecklistModel;
+    constructor(label: string, disabled?: boolean, isChecked?: boolean, subLevelChecklist?: ChecklistModel, value?: any) {
+        this.label = label;
+        this.disabled = disabled;
+        this.isChecked = isChecked;
+        this.value = isUndefined(value) ? label : value;
+        this.subLevelChecklist = subLevelChecklist;
+    }
+}