First version of design system

* Add SPOT foundation styles

* Initial work on buttons

* Implement basic examples page

* Improve spot-checkbox

* Add outline buttons in HTML

* Checkbox works

* Add filter chips

* Initial text field implementation

* Chip field initial implementation, add filter-chip component

* Keep old styleguide page

* Add drop modal component

* Finish checkbox list

* Improve action bar

* Add drop modal alignment options

* Fix drop modal zindex

* Make sure clicks do not close the drop modal, add escape closing event for drop modal

* Add spot-body

* Don't hide drop modal body via display

* Update buttons and colors

* Add basic button type

* Set line height for typography styles

* Add basic toggle component

* Better docs

* Fix toggle font size

* Add current date color

* Fix names for form components

* Fix package-lock.json

Co-authored-by: Henriette Darge <h.darge@openproject.com>
Co-authored-by: Oliver Günther <mail@oliverguenther.de>

config/routes.rb

@@ -583,6 +583,7 @@ OpenProject::Application.routes.draw do
 
   # Development route for styleguide
   if Rails.env.development?
+    get '/spot-docs', to: 'angular#empty_layout'
     get '/styleguide' => redirect('/assets/styleguide.html')
   end
 end

frontend/package.json

@@ -23,6 +23,7 @@
     "@types/jquery": "^3.3.33",
     "@types/jqueryui": "^1.12.10",
     "@types/lodash": "^4.14.149",
+    "@types/mime": "^2.0.3",
     "@types/moment-timezone": "^0.5.12",
     "@types/mousetrap": "^1.6.3",
     "@types/pako": "^1.0.1",
@@ -33,7 +34,6 @@
     "@typescript-eslint/eslint-plugin": "4.23.0",
     "@typescript-eslint/parser": "4.23.0",
     "browserslist": "^4.9.1",
-    "@types/mime": "^2.0.3",
     "codelyzer": "^6.0.0",
     "eslint": "^7.26.0",
     "eslint-config-airbnb-base": "^14.2.1",
@@ -54,7 +54,9 @@
     "karma-jasmine": "~3.3.0",
     "karma-jasmine-html-reporter": "^1.5.0",
     "karma-spec-reporter": "^0.0.32",
+    "optimist": "^0.6.1",
     "source-map-explorer": "^2.5.2",
+    "theo": "^8.1.5",
     "ts-node": "~8.3.0",
     "typescript": "~4.2.4",
     "webpack-bundle-analyzer": "^4.4.2"
@@ -143,6 +145,7 @@
     "prebuild": "./scripts/link_plugin_placeholder.js",
     "build": "node --max_old_space_size=4096 ./node_modules/@angular/cli/bin/ng build --configuration production --named-chunks --extract-css --source-map",
     "build:watch": "node --max_old_space_size=4096 ./node_modules/@angular/cli/bin/ng build --watch --named-chunks --extract-css",
+    "tokens:generate": "theo src/app/spot/styles/tokens/tokens.yml --transform web --format sass,json --dest src/app/spot/styles/tokens/dist",
     "preserve": "./scripts/link_plugin_placeholder.js",
     "serve": "NG_PERSISTENT_BUILD_CACHE=1 node --max_old_space_size=8096 ./node_modules/@angular/cli/bin/ng serve --host 0.0.0.0 --public-host http://localhost:4200",
     "serve:test": "NG_PERSISTENT_BUILD_CACHE=1 node --max_old_space_size=8096 ./node_modules/@angular/cli/bin/ng serve --host 0.0.0.0 --disable-host-check --public-host http://frontend-test:4200",

frontend/src/app/app.module.ts

@@ -37,6 +37,7 @@ import { OpContextMenuTrigger } from 'core-app/shared/components/op-context-menu
 import { States } from 'core-app/core/states/states.service';
 import { OpenprojectFieldsModule } from 'core-app/shared/components/fields/openproject-fields.module';
 import { OPSharedModule } from 'core-app/shared/shared.module';
+import { OpSpotModule } from 'core-app/spot/spot.module';
 import { OpDragScrollDirective } from 'core-app/shared/directives/op-drag-scroll/op-drag-scroll.directive';
 import { DynamicBootstrapper } from 'core-app/core/setup/globals/dynamic-bootstrapper';
 import { OpenprojectWorkPackagesModule } from 'core-app/features/work-packages/openproject-work-packages.module';
@@ -109,6 +110,8 @@ export function initializeServices(injector:Injector) {
     BrowserModule,
     // Commons
     OPSharedModule,
+    // Design System
+    OpSpotModule,
     // State module
     OpenProjectStateModule,
     // Router module

frontend/src/app/shared/components/option-list/option-list.component.ts

@@ -1,5 +1,10 @@
 import {
-  Component, EventEmitter, forwardRef, HostBinding, Input, Output,
+  Component,
+  EventEmitter,
+  forwardRef,
+  HostBinding,
+  Input,
+  Output,
 } from '@angular/core';
 import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
 

frontend/src/app/spot/components/checkbox.component.html

@@ -0,0 +1,10 @@
+<input
+  type="checkbox"
+  class="spot-checkbox--input"
+  [attr.name]="name"
+  [disabled]="disabled"
+  [checked]="checked"
+  (change)="onStateChange()"
+  #input
+/>
+<span class="spot-checkbox--fake"></span>

frontend/src/app/spot/components/checkbox.component.ts

@@ -0,0 +1,69 @@
+import {
+  Component,
+  ElementRef,
+  EventEmitter,
+  ViewChild,
+  forwardRef,
+  HostBinding,
+  Input,
+  Output,
+} from '@angular/core';
+import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
+
+export type SpotCheckboxState = true|false|null;
+
+@Component({
+  selector: 'spot-checkbox',
+  templateUrl: './checkbox.component.html',
+  providers: [{
+    provide: NG_VALUE_ACCESSOR,
+    useExisting: forwardRef(() => SpotCheckboxComponent),
+    multi: true,
+  }],
+})
+export class SpotCheckboxComponent implements ControlValueAccessor {
+  @HostBinding('class.spot-checkbox') public className = true;
+
+  @ViewChild('input') public input:ElementRef;
+
+  @Input() disabled = false;
+
+  @Input() name = `spot-checkbox-${+(new Date())}`;
+
+  @Output() checkedChange = new EventEmitter<boolean>();
+
+  @Input() public checked = false;
+
+  onStateChange() {
+    const value = this.input.nativeElement.checked;
+    this.checkedChange.emit(value);
+    this.onChange(value);
+    this.onTouched(value);
+  }
+
+  writeValue(value:SpotCheckboxState) {
+    // This is set in a timeout because the initial value is set before the template is ready,
+    // which causes the input nativeElement to not be available yet.
+    setTimeout(() => {
+      const input = this.input.nativeElement;
+      if (value === null) {
+        input.indeterminate = true;
+      } else {
+        input.indeterminate = false;
+      }
+      
+      this.checked = !!value;
+    });
+  }
+
+  onChange = (_:SpotCheckboxState) => {};
+  onTouched = (_:SpotCheckboxState) => {};
+
+  registerOnChange(fn:any) {
+    this.onChange = fn;
+  }
+
+  registerOnTouched(fn:any) {
+    this.onTouched = fn;
+  }
+}

frontend/src/app/spot/components/chip-field.component.html

@@ -0,0 +1,30 @@
+<!--
+  Normally I'd just wrap a spot-text-field here
+  but because Angular is trash we'd increase HTML nesting,
+  making it harder to write clean CSS.
+-->
+
+<ng-content select="[slot=before]"></ng-content>
+
+<div class="spot-chip-field--values">
+  <spot-filter-chip
+    class="spot-filter-chip spot-chip-field--value"
+    *ngFor="let item of value; index as i"
+    (remove)="remove(i)"
+    [title]="item"
+  ></spot-filter-chip>
+</div>
+
+<input
+  class="spot-text-field--input"
+
+  [attr.name]="name"
+  [disabled]="disabled"
+  [placeholder]="placeholder"
+  [(ngModel)]="textValue"
+
+  (keydown.enter)="onEnter($event)"
+  (keydown.backspace)="onBackspace($event)"
+  #input
+/>
+<ng-content select="[slot=after]"></ng-content>

frontend/src/app/spot/components/chip-field.component.ts

@@ -0,0 +1,94 @@
+import {
+  Component,
+  ElementRef,
+  ViewChild,
+  forwardRef,
+  HostBinding,
+  HostListener,
+  Input,
+} from '@angular/core';
+import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
+
+@Component({
+  selector: 'spot-chip-field',
+  templateUrl: './chip-field.component.html',
+  providers: [{
+    provide: NG_VALUE_ACCESSOR,
+    useExisting: forwardRef(() => SpotChipFieldComponent),
+    multi: true,
+  }],
+})
+export class SpotChipFieldComponent implements ControlValueAccessor {
+  @HostBinding('class.spot-chip-field') public classNameChipField = true;
+  @HostBinding('class.spot-text-field') public classNameTextField = true;
+
+  @HostListener('click') public onParentClick() {
+    this.input.nativeElement.focus();
+  }
+
+  @ViewChild('input') public input:ElementRef;
+
+  @Input() name = `spot-chip-field-${+(new Date())}`;
+  @Input() disabled = false;
+  @Input() public placeholder = '';
+  @Input('value') public _value:string[] = [];
+
+  public textValue = '';
+
+  public get value():string[] {
+    return this._value;
+  }
+
+  public set value(value:string[]) {
+    this._value = value;
+    this.onChange(value);
+    this.onTouched(value);
+  }
+
+  public remove(i:number) {
+    this.value = this.value.slice(0, i).concat(this.value.slice(i + 1));
+  }
+
+  public onBackspace(e:KeyboardEvent) {
+    if (this.textValue !== '') {
+      return;
+    }
+
+    e.preventDefault();
+
+    this.value = this.value.slice(0, this.value.length - 1);
+  }
+
+  public onEnter(e:KeyboardEvent) {
+    e.stopPropagation();
+
+    if (this.textValue === '') {
+      return;
+    }
+
+    e.preventDefault();
+
+    this.value = [
+      ...this.value,
+      this.textValue,
+    ];
+
+    this.textValue = '';
+  }
+
+  writeValue(value:string[]) {
+    this.value = value;
+  }
+
+  onChange = (_:string[]) => {};
+  onTouched = (_:string[]) => {};
+
+  registerOnChange(fn:any) {
+    this.onChange = fn;
+  }
+
+  registerOnTouched(fn:any) {
+    this.onTouched = fn;
+  }
+}
+

frontend/src/app/spot/components/drop-modal.component.html

@@ -0,0 +1,8 @@
+<ng-content select="[slot=trigger]"></ng-content>
+<div
+  [ngClass]="['spot-drop-modal--body', 'spot-body', alignmentClass]"
+  (click)="onBodyClick($event)"
+  (keypress.escape)="close()"
+>
+  <ng-content select="[slot=body]"></ng-content>
+</div>

frontend/src/app/spot/components/drop-modal.component.ts

@@ -0,0 +1,74 @@
+import {
+  Component,
+  HostBinding,
+  Input,
+  Output,
+  EventEmitter,
+  OnDestroy,
+} from '@angular/core';
+
+enum SpotDropModalAlignmentOption {
+  BottomCenter = 'bottom-center',
+  BottomLeft = 'bottom-left',
+  BottomRight = 'bottom-right',
+  TopCenter = 'top-center',
+  TopLeft = 'top-left',
+  TopRight = 'top-right',
+}
+
+@Component({
+  selector: 'spot-drop-modal',
+  templateUrl: './drop-modal.component.html',
+})
+export class SpotDropModalComponent implements OnDestroy {
+  @HostBinding('class.spot-drop-modal') public className = true;
+
+  @HostBinding('class.spot-drop-modal_opened') public _open = false;
+
+  @Input('open')
+  public set open(value:boolean) {
+    this._open = value;
+
+    if (this._open) {
+      /* We have to set these listeners next tick, because they're so far up the tree.
+       * If the open value was set because of a click listener in the trigger slot,
+       * that event would reach the event listener added here and close the modal right away.
+       */
+      setTimeout(() => {
+        document.body.addEventListener('click', this.closeEventListener);
+      })
+    } else {
+      document.body.removeEventListener('click', this.closeEventListener);
+      this.closed.emit();
+    }
+  }
+
+  public get open():boolean {
+    return this._open;
+  }
+
+  @Input('alignment') public alignment:SpotDropModalAlignmentOption = SpotDropModalAlignmentOption.BottomCenter;
+
+  get alignmentClass() {
+    return `spot-drop-modal--body_${this.alignment}`;
+  }
+
+  @Output() closed = new EventEmitter<void>();
+
+  private closeEventListener = this.close.bind(this);
+
+  public close():void {
+    this.open = false;
+  }
+
+  public onBodyClick(e:MouseEvent) {
+    // We stop propagation here so that clicks inside the body do not
+    // close the modal when the event reaches the document body
+    e.stopPropagation();
+  }
+
+  public ngOnDestroy():void {
+    document.body.removeEventListener('click', this.closeEventListener);
+  }
+}
+

frontend/src/app/spot/components/filter-chip.component.html

@@ -0,0 +1,7 @@
+<button
+  *ngIf="removable"
+  class="spot-filter-chip--remove"
+  type="button"
+  (click)="remove.emit()"
+>x</button>
+<div class="spot-filter-chip--title">{{ title }}</div>

frontend/src/app/spot/components/filter-chip.component.ts

@@ -0,0 +1,20 @@
+import {
+  Component,
+  EventEmitter,
+  HostBinding,
+  Input,
+  Output,
+} from '@angular/core';
+
+@Component({
+  selector: 'spot-filter-chip',
+  templateUrl: './filter-chip.component.html',
+})
+export class SpotFilterChipComponent {
+  @HostBinding('class.spot-filter-chip') public className = true;
+
+  @Input() removable = true;
+  @Input() title = '';
+
+  @Output() remove = new EventEmitter<void>();
+}

frontend/src/app/spot/components/text-field.component.html

@@ -0,0 +1,10 @@
+<ng-content select="[slot=before]"></ng-content>
+<input
+  class="spot-text-field--input"
+  [attr.name]="name"
+  [disabled]="disabled"
+  [placeholder]="placeholder"
+  [(ngModel)]="value"
+  #input
+/>
+<ng-content select="[slot=after]"></ng-content>

frontend/src/app/spot/components/text-field.component.ts

@@ -0,0 +1,60 @@
+import {
+  Component,
+  ElementRef,
+  ViewChild,
+  forwardRef,
+  HostBinding,
+  HostListener,
+  Input,
+} from '@angular/core';
+import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
+
+@Component({
+  selector: 'spot-text-field',
+  templateUrl: './text-field.component.html',
+  providers: [{
+    provide: NG_VALUE_ACCESSOR,
+    useExisting: forwardRef(() => SpotTextFieldComponent),
+    multi: true,
+  }],
+})
+export class SpotTextFieldComponent implements ControlValueAccessor {
+  @HostBinding('class.spot-text-field') public className = true;
+
+  @HostListener('click') public onParentClick() {
+    this.input.nativeElement.focus();
+  }
+
+  @ViewChild('input') public input:ElementRef;
+
+  @Input() name = `spot-text-field-${+(new Date())}`;
+  @Input() disabled = false;
+  @Input() public placeholder = '';
+  @Input('value') public _value = '';
+
+  public get value():string {
+    return this._value;
+  }
+
+  public set value(value:string) {
+    this._value = value;
+    this.onChange(value);
+    this.onTouched(value);
+  }
+
+  writeValue(value:string) {
+    this.value = value;
+  }
+
+  onChange = (_:string) => {};
+  onTouched = (_:string) => {};
+
+  registerOnChange(fn:any) {
+    this.onChange = fn;
+  }
+
+  registerOnTouched(fn:any) {
+    this.onTouched = fn;
+  }
+}
+

frontend/src/app/spot/components/toggle.component.html

@@ -0,0 +1,13 @@
+<label
+  *ngFor="let option of options"
+  [ngClass]="{ 'spot-toggle--option': true, 'spot-toggle--option_selected': value === option.value }"
+>
+  <input
+    class="spot-toggle--option-input"
+    type="radio"
+    [name]="name"
+    [value]="option.value"
+    [(ngModel)]="value"
+  />
+  {{ option.title }}
+</label>

frontend/src/app/spot/components/toggle.component.ts

@@ -0,0 +1,59 @@
+import {
+  Component,
+  EventEmitter,
+  forwardRef,
+  HostBinding,
+  Input,
+  Output,
+} from '@angular/core';
+import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
+
+export interface SpotToggleOption<T> {
+  value:T;
+  title:string;
+};
+
+@Component({
+  selector: 'spot-toggle',
+  templateUrl: './toggle.component.html',
+  providers: [{
+    provide: NG_VALUE_ACCESSOR,
+    useExisting: forwardRef(() => SpotToggleComponent),
+    multi: true,
+  }],
+})
+export class SpotToggleComponent<T> implements ControlValueAccessor {
+  @HostBinding('class.spot-toggle') public className = true;
+
+  @Output() checkedChange = new EventEmitter<boolean>();
+
+  @Input() options:SpotToggleOption<T>[] = [];
+  @Input() name = `spot-toggle-${+(new Date())}`;
+  @Input('value') public _value:T;
+
+  public get value():T {
+    return this._value;
+  }
+
+  public set value(value:T) {
+    this._value = value;
+    this.onChange(value);
+    this.onTouched(value);
+  }
+
+  writeValue(value:T) {
+    this.value = value;
+  }
+
+  onChange = (_:T) => {};
+  onTouched = (_:T) => {};
+
+  registerOnChange(fn:any) {
+    this.onChange = fn;
+  }
+
+  registerOnTouched(fn:any) {
+    this.onTouched = fn;
+  }
+}
+

frontend/src/app/spot/spot-docs.component.html

@@ -0,0 +1,215 @@
+<h1>Buttons</h1>
+<button class="spot-button">Default</button>
+<button class="spot-button spot-button_main">Main</button>
+<button class="spot-button spot-button_accent">Accent</button>
+<button class="spot-button spot-button_danger">Danger</button>
+<button class="spot-button" disabled>Disabled</button>
+
+<hr>
+
+<button class="spot-button spot-button_outlined">Default</button>
+<button class="spot-button spot-button_outlined spot-button_main">Main</button>
+<button class="spot-button spot-button_outlined spot-button_accent">Accent</button>
+<button class="spot-button spot-button_outlined spot-button_danger">Danger</button>
+<button class="spot-button spot-button_outlined" disabled>Disabled</button>
+
+<hr>
+
+<button class="spot-button spot-button_basic">Default</button>
+<button class="spot-button spot-button_basic spot-button_main">Main</button>
+<button class="spot-button spot-button_basic spot-button_accent">Accent</button>
+<button class="spot-button spot-button_basic spot-button_danger">Danger</button>
+<button class="spot-button spot-button_basic" disabled>Disabled</button>
+
+<h1>Toggles</h1>
+
+<spot-toggle
+  [options]="toggleOptions"
+  [(ngModel)]="toggleValue"
+></spot-toggle>
+Currently selected value is {{ toggleValue }}
+
+<h1>Checkbox</h1>
+
+<label>
+  <spot-checkbox></spot-checkbox> Unchecked
+</label>
+
+<label>
+  <spot-checkbox [checked]="true"></spot-checkbox> Checked
+</label>
+
+<label>
+  <spot-checkbox [disabled]="true"></spot-checkbox> Disabled
+</label>
+
+<label>
+  <spot-checkbox
+    [checked]="true"
+    [disabled]="true"
+  ></spot-checkbox> Disabled checked
+</label>
+
+<label>
+  <spot-checkbox [(ngModel)]="checkboxValue"></spot-checkbox>
+  Currently {{ checkboxValueString() }}
+</label>
+
+<label>
+  <spot-checkbox
+    [(ngModel)]="checkboxValue"
+    [disabled]="true"
+    name="checkbox-name"
+  ></spot-checkbox>
+  Currently {{ checkboxValueString() }}
+</label>
+
+<h1>Lists</h1>
+
+<ul class="spot-list">
+  <li class="spot-list--item">
+    <label class="spot-list--item-action">
+      <spot-checkbox [(ngModel)]="checkboxValue"></spot-checkbox>
+      <div class="spot-list--item-title">Checkbox item</div>
+    </label>
+  </li>
+  <li class="spot-list--item">
+    <label class="spot-list--item-action">
+      <spot-checkbox [(ngModel)]="checkboxValue"></spot-checkbox>
+      <div class="spot-list--item-title">Checkbox item with children</div>
+    </label>
+    <ul class="spot-list">
+      <li class="spot-list--item">
+        <label class="spot-list--item-action">
+          <spot-checkbox [(ngModel)]="checkboxValue"></spot-checkbox>
+          <div class="spot-list--item-title">Child checkbox item</div>
+        </label>
+      </li>
+      <li class="spot-list--item">
+        <label class="spot-list--item-action">
+          <spot-checkbox [(ngModel)]="checkboxValue"></spot-checkbox>
+          <div class="spot-list--item-title">Second child checkbox item</div>
+        </label>
+      </li>
+    </ul>
+  </li>
+</ul>
+
+<h1>Filter Chip</h1>
+
+<spot-filter-chip
+  title="Default chip"
+  (remove)="onRemoveChip()"
+></spot-filter-chip>
+<spot-filter-chip
+  [removable]="false"
+  title="Unremovable chip"
+></spot-filter-chip>
+
+<h1>Text Field</h1>
+
+<input
+  class="spot-text-field"
+  placeholder="Placeholder value"
+/>
+
+<input
+  class="spot-text-field"
+  value="Test value"
+/>
+
+<spot-text-field
+  placeholder="Placeholder value"
+  value="Test value"
+  name="textfield-name"
+></spot-text-field>
+
+<spot-text-field
+  placeholder="Placeholder value"
+  [(ngModel)]="textFieldValue"
+></spot-text-field>
+
+<spot-text-field
+  placeholder="Placeholder value"
+  [(ngModel)]="textFieldValue"
+>
+  <span
+    slot="after"
+    class="op-icon icon-bell"
+  ></span>
+</spot-text-field>
+
+<spot-text-field
+  placeholder="Placeholder value"
+  [(ngModel)]="textFieldValue"
+>
+  <span
+    slot="before"
+    class="op-icon icon-bell"
+  ></span>
+  <span
+    slot="after"
+    class="op-icon icon-bell"
+  ></span>
+</spot-text-field>
+
+<spot-text-field
+  placeholder="Placeholder value"
+  [(ngModel)]="textFieldValue"
+>
+  <span
+    slot="before"
+    class="op-icon icon-bell"
+  ></span>
+</spot-text-field>
+
+<h1>Chip Field</h1>
+
+<spot-chip-field
+  placeholder="Type and press enter"
+></spot-chip-field>
+
+<h1>Drop Modal</h1>
+
+<select [(ngModel)]="alignment">
+  <option>bottom-center</option>
+  <option>bottom-left</option>
+  <option>bottom-right</option>
+  <option>top-center</option>
+  <option>top-left</option>
+  <option>top-right</option>
+</select>
+
+<spot-drop-modal
+  [open]="dropModalOpen"
+  [alignment]="alignment"
+  (closed)="dropModalOpen = false"
+>
+  <button
+    slot="trigger"
+    type="button"
+    class="spot-button spot-button_main"
+    (click)="dropModalOpen = !dropModalOpen"
+  >Open Modal</button>
+  <ng-container slot="body">
+    <h1>Test</h1>
+  </ng-container>
+</spot-drop-modal>
+
+<h1>Action Bar</h1>
+
+<div class="spot-action-bar">
+  <div class="spot-action-bar--left">
+    <button class="spot-button spot-button_outlined spot-button_main">
+      Independent action
+    </button>
+  </div>
+  <div class="spot-action-bar--right">
+    <button class="spot-button spot-button_outlined spot-button_main">
+      Some Action
+    </button>
+    <button class="spot-button spot-button_main">
+      Another Action
+    </button>
+  </div>
+</div>

frontend/src/app/spot/spot-docs.component.ts

@@ -0,0 +1,35 @@
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'spot-docs',
+  templateUrl: './spot-docs.component.html',
+})
+export class SpotDocsComponent {
+  indeterminateState = null;
+  checkboxValue = null;
+  textFieldValue = 'ngModel value';
+  dropModalOpen = false;
+  alignment = 'bottom-center';
+
+  toggleValue = null;
+  toggleOptions = [
+    {value: 1, title: '1'},
+    {value: 2, title: '2'}
+  ];
+
+  onRemoveChip() {
+    alert('Remove chip');
+  }
+
+  checkboxValueString() {
+    if (this.checkboxValue === null) {
+      return 'null (indeterminate)';
+    }
+
+    if (this.checkboxValue) {
+      return 'true (checked)';
+    }
+
+    return 'false (unchecked)';
+  }
+}

frontend/src/app/spot/spot.module.ts

@@ -0,0 +1,40 @@
+import { NgModule } from '@angular/core';
+import { FormsModule } from '@angular/forms';
+import { CommonModule } from '@angular/common';
+import { UIRouterModule } from '@uirouter/angular';
+import { SPOT_DOCS_ROUTES } from './spot.routes';
+import { SpotCheckboxComponent } from './components/checkbox.component';
+import { SpotToggleComponent } from './components/toggle.component';
+import { SpotTextFieldComponent } from './components/text-field.component';
+import { SpotFilterChipComponent } from './components/filter-chip.component';
+import { SpotChipFieldComponent } from './components/chip-field.component';
+import { SpotDropModalComponent } from './components/drop-modal.component';
+import { SpotDocsComponent } from './spot-docs.component';
+
+@NgModule({
+  imports: [
+    // Routes for /spot-docs
+    UIRouterModule.forChild({ states: SPOT_DOCS_ROUTES }),
+    FormsModule,
+    CommonModule,
+  ],
+  declarations: [
+    SpotDocsComponent,
+
+    SpotCheckboxComponent,
+    SpotToggleComponent,
+    SpotTextFieldComponent,
+    SpotFilterChipComponent,
+    SpotChipFieldComponent,
+    SpotDropModalComponent,
+  ],
+  exports: [
+    SpotCheckboxComponent,
+    SpotToggleComponent,
+    SpotTextFieldComponent,
+    SpotFilterChipComponent,
+    SpotChipFieldComponent,
+    SpotDropModalComponent,
+  ],
+})
+export class OpSpotModule { }

frontend/src/app/spot/spot.routes.ts

@@ -0,0 +1,41 @@
+// -- copyright
+// OpenProject is an open source project management software.
+// Copyright (C) 2012-2021 the OpenProject GmbH
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License version 3.
+//
+// OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+// Copyright (C) 2006-2013 Jean-Philippe Lang
+// Copyright (C) 2010-2013 the ChiliProject Team
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+//
+// See COPYRIGHT and LICENSE files for more details.
+//++
+
+import { Ng2StateDeclaration } from '@uirouter/angular';
+import { SpotDocsComponent } from './spot-docs.component';
+
+export const SPOT_DOCS_ROUTES:Ng2StateDeclaration[] = [
+  {
+    name: 'styleguide',
+    parent: 'root',
+    url: '/spot-docs',
+    views: {
+      '!$default': { component: SpotDocsComponent },
+    },
+  },
+];

frontend/src/app/spot/styles/sass/blocks/action-bar.sass

@@ -0,0 +1,26 @@
+.spot-action-bar
+  display: flex
+  flex-direction: row
+  flex-wrap: nowrap
+  justify-content: space-between
+  padding: $spot-spacing-0_75
+  background-color: $spot-color-basic-gray-6
+
+  &--left,
+  &--right
+    display: flex
+    flex-direction: row
+    flex-wrap: wrap
+    align-items: center
+
+  &--left
+    justify-content: flex-start
+
+    > *:not(:last-child)
+      margin-right: $spot-spacing-1
+
+  &--right
+    justify-content: flex-end
+
+    > *:not(:first-child)
+      margin-left: $spot-spacing-1

frontend/src/app/spot/styles/sass/blocks/body.sass

@@ -0,0 +1,13 @@
+.spot-body
+  display: flex
+  flex-direction: column
+
+  > .spot-text-field,
+  > .spot-list
+    margin: $spot-spacing-0_5
+
+    &:first-child
+      margin-top: $spot-spacing-1
+
+    &:last-child
+      margin-bottom: $spot-spacing-1

frontend/src/app/spot/styles/sass/blocks/button.sass

@@ -0,0 +1,182 @@
+.spot-button
+  @include spot-body-small
+
+  display: inline-flex
+  flex-direction: row
+  flex-wrap: nowrap
+  margin: 0
+  padding: $spot-spacing-0_5
+  border-width: 1px
+  border-style: solid
+  border-radius: $spot-spacing-1
+  border-color: $spot-color-basic-white
+  background-color: $spot-color-basic-white
+  color: $spot-color-main
+  cursor: pointer
+
+  &, *
+    box-sizing: border-box
+
+  &:hover
+    background-color: $spot-color-basic-gray-6
+    border-color: $spot-color-basic-gray-6
+    color: $spot-color-main-dark
+    
+  &:active
+    background-color: $spot-color-basic-gray-6
+    border-color: $spot-color-basic-gray-6
+    color: $spot-color-main
+
+  &_main
+    border-color: $spot-color-main
+    background-color: $spot-color-main
+    color: $spot-color-basic-white
+
+    &:hover
+      border-color: $spot-color-main-light
+      background-color: $spot-color-main-light
+      color: $spot-color-main-dark
+
+    &:active
+      border-color: $spot-color-main-light
+      background-color: $spot-color-main-light
+      color: $spot-color-main
+
+  &_accent
+    border-color: $spot-color-accent
+    background-color: $spot-color-accent
+    color: $spot-color-basic-white
+
+    &:hover
+      border-color: $spot-color-accent-light
+      background-color: $spot-color-accent-light
+      color: $spot-color-accent-dark
+
+    &:active
+      border-color: $spot-color-accent-light
+      background-color: $spot-color-accent-light
+      color: $spot-color-accent
+
+  &_danger
+    border-color: $spot-color-danger
+    background-color: $spot-color-danger
+    color: $spot-color-basic-white
+
+    &:hover
+      border-color: $spot-color-danger-light
+      background-color: $spot-color-danger-light
+      color: $spot-color-danger-dark
+
+    &:active
+      border-color: $spot-color-danger-light
+      background-color: $spot-color-danger-light
+      color: $spot-color-danger
+
+  &[disabled],
+  &_disabled
+    &,
+    &:hover,
+    &:active
+      border-color: $spot-color-basic-gray-4
+      background-color: $spot-color-basic-gray-4
+      color: $spot-color-basic-white
+      cursor: default
+
+  &_outlined
+    background-color: transparent
+    border-color: $spot-color-basic-white
+    color: $spot-color-basic-white
+
+    &:hover
+      background-color: $spot-color-basic-gray-6
+      border-color: $spot-color-main
+      color: $spot-color-main
+      
+    &:active
+      background-color: $spot-color-basic-white
+      border-color: $spot-color-basic-white
+      color: $spot-color-main
+
+  &_outlined#{&}_main
+    background-color: transparent
+    border-color: $spot-color-main
+    color: $spot-color-main
+
+    &:hover
+      background-color: $spot-color-main-light
+      border-color: $spot-color-main
+      color: $spot-color-main
+      
+    &:active
+      background-color: $spot-color-main
+      border-color: $spot-color-basic-white
+      color: $spot-color-basic-white
+
+  &_outlined#{&}_accent
+    background-color: transparent
+    border-color: $spot-color-accent
+    color: $spot-color-accent
+
+    &:hover
+      background-color: $spot-color-accent-light
+      border-color: $spot-color-accent
+      color: $spot-color-accent
+      
+    &:active
+      background-color: $spot-color-accent
+      border-color: $spot-color-basic-white
+      color: $spot-color-basic-white
+
+  &_outlined#{&}_danger
+    background-color: transparent
+    border-color: $spot-color-danger
+    color: $spot-color-danger
+
+    &:hover
+      background-color: $spot-color-danger-light
+      border-color: $spot-color-danger
+      color: $spot-color-danger
+      
+    &:active
+      background-color: $spot-color-danger
+      border-color: $spot-color-basic-white
+      color: $spot-color-basic-white
+
+  &_basic
+    background-color: transparent
+    border-color: transparent
+    color: $spot-color-basic-white
+
+    &:hover,
+    &:active
+      background-color: transparent
+      border-color: transparent
+      color: $spot-color-main
+
+  &_basic#{&}_main
+    color: $spot-color-main
+
+    &:hover
+      color: $spot-color-main-dark
+      
+    &:active
+      color: $spot-color-main
+
+  &_basic#{&}_accent
+    color: $spot-color-accent
+
+    &:hover
+      color: $spot-color-accent-dark
+      
+    &:active
+      color: $spot-color-accent
+
+  &_basic#{&}_danger
+    color: $spot-color-danger
+
+    &:hover
+      color: $spot-color-danger-dark
+      
+    &:active
+      color: $spot-color-danger
+

frontend/src/app/spot/styles/sass/blocks/checkbox.sass

@@ -0,0 +1,62 @@
+.spot-checkbox
+  display: inline-flex
+  justify-content: center
+  align-items: center
+  height: $spot-spacing-1_5
+  width: $spot-spacing-1_5
+
+  &, *
+    box-sizing: border-box
+
+  &--input
+    position: absolute
+    height: 1px
+    width: 1px
+    overflow: hidden
+    clip: rect(1px,1px,1px,1px)
+
+  &--fake
+    box-sizing: border-box
+    display: flex
+    justify-content: center
+    align-items: center
+    height: $spot-spacing-1
+    width: $spot-spacing-1
+    border-radius: 3px
+    border: 1px solid $spot-color-main
+    cursor: pointer
+
+    &::before,
+    &::after
+      display: block
+      content: ''
+
+  &--input:indeterminate + &--fake::before
+    width: 8px
+    height: 2px
+    background-color: $spot-color-main
+
+  &--input:checked + &--fake::before,
+  &--input:checked + &--fake::after
+    border-radius: 1px
+    position: absolute
+
+  &--input:checked + &--fake::before
+    width: 2px
+    height: 5px
+    background-color: $spot-color-main
+    transform: translateX(-2.3px) translateY(1.4px) rotate(-40deg)
+
+  &--input:checked + &--fake::after
+    width: 8px
+    height: 2px
+    background-color: $spot-color-main
+    transform: translateX(1px) rotate(-45deg)
+
+  &--input:disabled + &--fake
+    border-color: $spot-color-basic-gray-3
+    cursor: default
+
+  &--input:disabled + &--fake::before,
+  &--input:disabled + &--fake::after
+    background-color: $spot-color-basic-gray-3

frontend/src/app/spot/styles/sass/blocks/chip-field.sass

@@ -0,0 +1,7 @@
+.spot-chip-field
+  &--values
+    display: flex
+
+  &--value
+    &:not(:last-child)
+      margin-right: $spot-spacing-0_5

frontend/src/app/spot/styles/sass/blocks/drop-modal.sass

@@ -0,0 +1,43 @@
+.spot-drop-modal
+  position: relative
+  display: inline-flex
+
+  &--body
+    @include spot-z-index("drop-modal")
+
+    box-shadow: $spot-shadow-light-mid
+    position: absolute
+    background: $spot-color-basic-white
+    border-radius: 5px
+    pointer-events: none
+    opacity: 0
+
+    &_bottom-center
+      top: 100%
+      left: 50%
+      transform: translateX(-50%)
+
+    &_bottom-left
+      top: 100%
+      left: 0%
+
+    &_bottom-right
+      top: 100%
+      right: 0%
+
+    &_top-center
+      bottom: 100%
+      left: 50%
+      transform: translateX(-50%)
+
+    &_top-left
+      bottom: 100%
+      left: 0%
+
+    &_top-right
+      bottom: 100%
+      right: 0%
+
+  &_opened &--body
+    pointer-events: all
+    opacity: 1

frontend/src/app/spot/styles/sass/blocks/filter-chip.sass

@@ -0,0 +1,24 @@
+.spot-filter-chip
+  @include spot-caption
+
+  display: inline-flex
+  align-items: center
+  flex-wrap: nowrap
+  background-color: $spot-color-main-light
+  color: $spot-color-basic-gray-1
+  border-radius: 5px
+
+  &--remove
+    display: flex
+    justify-content: center
+    align-items: center
+    border: 0
+    border-right: 1px solid rgba($spot-color-main, 0.5)
+    background: transparent
+    cursor: pointer
+    padding: $spot-spacing-0_25
+
+  &--title
+    padding: $spot-spacing-0_25
+
+

frontend/src/app/spot/styles/sass/blocks/index.sass

@@ -0,0 +1,12 @@
+// This directory will hold files that implement the styles for specific blocks and components
+// Import them here
+@import './button'
+@import './toggle'
+@import './checkbox'
+@import './text-field'
+@import './filter-chip'
+@import './chip-field'
+@import './drop-modal'
+@import './list'
+@import './action-bar'
+@import './body'

frontend/src/app/spot/styles/sass/blocks/list.sass

@@ -0,0 +1,28 @@
+.spot-list
+  display: flex
+  flex-direction: column
+  list-style: none
+  margin: 0
+
+  &--item
+    display: flex
+    flex-direction: column
+
+    &-action
+      display: flex
+      align-items: center
+      justify-content: flex-start
+      padding: $spot-spacing-0_5
+      background-color: transparent
+      margin: 0
+      border: 0
+      cursor: pointer
+
+    &-title
+      &:not(:first-child)
+        margin-left: $spot-spacing-0_5
+      &:not(:last-child)
+        margin-left: $spot-spacing-0_5
+
+    .spot-list
+      margin-left: $spot-spacing-1_5

frontend/src/app/spot/styles/sass/blocks/text-field.sass

@@ -0,0 +1,32 @@
+.spot-text-field
+  @include spot-body-small
+
+  border: 1px solid $spot-color-basic-gray-3
+  color: $spot-color-basic-black
+  border-radius: 4px
+  padding: $spot-spacing-0_5
+  background-color: $spot-color-basic-white
+  display: inline-flex
+  justify-content: center
+  align-items: center
+
+  &::placeholder
+    color: $spot-color-basic-gray-3
+
+  &:focus,
+  &:focus-within
+    border-color: $spot-color-main-dark
+    color: $spot-color-main-dark
+
+  &--input
+    background: transparent
+    border: 0
+    padding: 0
+    flex-grow: 1
+    outline: 0
+
+    &:not(:first-child)
+      margin-left: $spot-spacing-0_5
+
+    &:not(:last-child)
+      margin-right: $spot-spacing-0_5

frontend/src/app/spot/styles/sass/blocks/toggle.sass

@@ -0,0 +1,44 @@
+.spot-toggle
+  display: flex
+  border: 0
+  margin: 0
+  padding: 0
+
+  &--option
+    @include spot-body-small
+
+    display: flex
+    flex-direction: row
+    flex-wrap: nowrap
+    margin: 0
+    padding: $spot-spacing-0_5
+    border-width: 1px
+    border-style: solid
+    border-color: $spot-color-main
+    background-color: transparent
+    color: $spot-color-main
+    cursor: pointer
+
+    &:not(:last-child)
+      border-right: 0
+
+    &:first-child
+      padding-left: $spot-spacing-0_75
+      border-top-left-radius: $spot-spacing-1
+      border-bottom-left-radius: $spot-spacing-1
+
+    &:last-child
+      padding-right: $spot-spacing-0_75
+      border-top-right-radius: $spot-spacing-1
+      border-bottom-right-radius: $spot-spacing-1
+
+    &_selected
+      background-color: $spot-color-main-light
+    
+
+  &--option-input
+    position: absolute
+    height: 1px
+    width: 1px
+    overflow: hidden
+    clip: rect(1px,1px,1px,1px)

frontend/src/app/spot/styles/sass/index.sass

@@ -0,0 +1,4 @@
+@import 'variables'
+@import 'typography'
+@import 'zindex'
+@import 'blocks'

frontend/src/app/spot/styles/sass/typography.sass

@@ -0,0 +1,48 @@
+@mixin spot-header-big($weight: bold, $style: normal)
+  font-family: Lato, sans-serif
+  font-size: 2rem
+  font-weight: $weight
+  font-style: $style
+  line-height: 1.2em
+  
+@mixin spot-header-small($weight: bold, $style: normal)
+  font-family: Lato, sans-serif
+  font-size: 1.5rem
+  font-weight: $weight
+  font-style: $style
+  line-height: 1.2em
+  
+@mixin spot-subheader-big($weight: bold, $style: normal)
+  font-family: Lato, sans-serif
+  font-size: 1.25rem
+  font-weight: $weight
+  font-style: $style
+  line-height: 1.2em
+  
+@mixin spot-subheader-small($weight: bold, $style: normal)
+  font-family: Lato, sans-serif
+  font-size: 1.125rem
+  font-weight: $weight
+  font-style: $style
+  line-height: 1.2em
+  
+@mixin spot-body-big($weight: normal, $style: normal)
+  font-family: Lato, sans-serif
+  font-size: 1rem
+  font-weight: $weight
+  font-style: $style
+  line-height: 1.2em
+
+@mixin spot-body-small($weight: normal, $style: normal)
+  font-family: Lato, sans-serif
+  font-size: 0.875rem
+  font-weight: $weight
+  font-style: $style
+  line-height: 1.2em
+
+@mixin spot-caption($weight: normal, $style: normal)
+  font-family: Lato, sans-serif
+  font-size: 0.75rem
+  font-weight: $weight
+  font-style: $style
+  line-height: 1.2em

frontend/src/app/spot/styles/sass/variables.sass

@@ -0,0 +1 @@
+@import '../tokens/dist/tokens.sass'

frontend/src/app/spot/styles/sass/zindex.sass

@@ -0,0 +1,6 @@
+@use "sass:map"
+
+$spot-z-indexes: ( "drop-modal": 1000 )
+
+@mixin spot-z-index($type, $addition: 0)
+  z-index: map.get($spot-z-indexes, $type) + $addition

frontend/src/app/spot/styles/tokens/colors.yml

@@ -0,0 +1,66 @@
+props:
+  - name: spot-color-basic-black
+    value: "#000000"
+  - name: spot-color-basic-gray-1
+    value: "#333333"
+  - name: spot-color-basic-gray-2
+    value: "#555555"
+  - name: spot-color-basic-gray-3
+    value: "#878787"
+  - name: spot-color-basic-gray-4
+    value: "#cccccc"
+  - name: spot-color-basic-gray-5
+    value: "#e0e0e0"
+  - name: spot-color-basic-gray-6
+    value: "#f3f3f3"
+  - name: spot-color-basic-white
+    value: "#ffffff"
+
+  - name: spot-color-main
+    value: "#1a67a3"
+  - name: spot-color-main-dark
+    value: "#034579"
+  - name: spot-color-main-light
+    value: "#d1e5f5"
+
+  - name: spot-color-accent
+    value: "#308720"
+  - name: spot-color-accent-dark
+    value: "#007528"
+  - name: spot-color-accent-light
+    value: "#bfeeb6"
+
+  - name: spot-color-danger
+    value: "#d01100"
+  - name: spot-color-danger-dark
+    value: "#7D000D"
+  - name: spot-color-danger-light
+    value: "#F4ABA9"
+
+  - name: spot-color-indication-notification
+    value: "#00A3FF"
+  - name: spot-color-indication-flagged
+    value: "#1CB6C0"
+  - name: spot-color-indication-current-date
+    value: "#ffffE1"
+
+  - name: spot-color-feedback-error-dark
+    value: "#CA3F3F"
+  - name: spot-color-feedback-error-light
+    value: "#FEDADA"
+  - name: spot-color-feedback-warning-dark
+    value: "#EF9E56"
+  - name: spot-color-feedback-warning-light
+    value: "#FFE6C6"
+  - name: spot-color-feedback-success-dark
+    value: "#35C53F"
+  - name: spot-color-feedback-success-light
+    value: "#D8FDD1"
+  - name: spot-color-feedback-info-dark
+    value: "#8FC0DB"
+  - name: spot-color-feedback-info-light
+    value: "#E3F5FF"
+
+global:
+  type: color
+  category: colors

frontend/src/app/spot/styles/tokens/dist/tokens.json

@@ -0,0 +1,57 @@
+{
+  "spot-color-basic-black": "rgb(0, 0, 0)",
+  "spot-color-basic-gray-1": "rgb(51, 51, 51)",
+  "spot-color-basic-gray-2": "rgb(85, 85, 85)",
+  "spot-color-basic-gray-3": "rgb(135, 135, 135)",
+  "spot-color-basic-gray-4": "rgb(204, 204, 204)",
+  "spot-color-basic-gray-5": "rgb(224, 224, 224)",
+  "spot-color-basic-gray-6": "rgb(243, 243, 243)",
+  "spot-color-basic-white": "rgb(255, 255, 255)",
+  "spot-color-main": "rgb(26, 103, 163)",
+  "spot-color-main-dark": "rgb(3, 69, 121)",
+  "spot-color-main-light": "rgb(209, 229, 245)",
+  "spot-color-accent": "rgb(48, 135, 32)",
+  "spot-color-accent-dark": "rgb(0, 117, 40)",
+  "spot-color-accent-light": "rgb(191, 238, 182)",
+  "spot-color-danger": "rgb(208, 17, 0)",
+  "spot-color-danger-dark": "rgb(125, 0, 13)",
+  "spot-color-danger-light": "rgb(244, 171, 169)",
+  "spot-color-indication-notification": "rgb(0, 163, 255)",
+  "spot-color-indication-flagged": "rgb(28, 182, 192)",
+  "spot-color-indication-current-date": "rgb(255, 255, 225)",
+  "spot-color-feedback-error-dark": "rgb(202, 63, 63)",
+  "spot-color-feedback-error-light": "rgb(254, 218, 218)",
+  "spot-color-feedback-warning-dark": "rgb(239, 158, 86)",
+  "spot-color-feedback-warning-light": "rgb(255, 230, 198)",
+  "spot-color-feedback-success-dark": "rgb(53, 197, 63)",
+  "spot-color-feedback-success-light": "rgb(216, 253, 209)",
+  "spot-color-feedback-info-dark": "rgb(143, 192, 219)",
+  "spot-color-feedback-info-light": "rgb(227, 245, 255)",
+  "spot-spacing-5": "5rem",
+  "spot-spacing-6": "6rem",
+  "spot-spacing-1_75": "1.75rem",
+  "spot-spacing-7": "7rem",
+  "spot-spacing-0_75": "0.75rem",
+  "spot-spacing-8": "8rem",
+  "spot-spacing-9": "9rem",
+  "spot-spacing-2_25": "2.25rem",
+  "spot-spacing-1_25": "1.25rem",
+  "spot-spacing-0_25": "0.25rem",
+  "spot-spacing-0_5": "0.5rem",
+  "spot-spacing-1_5": "1.5rem",
+  "spot-spacing-2_5": "2.5rem",
+  "spot-spacing-10": "10rem",
+  "spot-spacing-3_5": "3.5rem",
+  "spot-spacing-4_5": "4.5rem",
+  "spot-spacing-5_5": "5.5rem",
+  "spot-spacing-1": "1rem",
+  "spot-spacing-2": "2rem",
+  "spot-spacing-3": "3rem",
+  "spot-spacing-4": "4rem",
+  "spot-shadow-light-low": "2px 2px 5px rgba(0, 0, 0, 0.15)",
+  "spot-shadow-light-mid": "4px 4px 10px rgba(0, 0, 0, 0.15)",
+  "spot-shadow-light-high": "6px 6px 20px rgba(0, 0, 0, 0.15)",
+  "spot-shadow-hard-low": "2px 2px 5px rgba(0, 0, 0, 0.25)",
+  "spot-shadow-hard-mid": "4px 4px 10px rgba(0, 0, 0, 0.25)",
+  "spot-shadow-hard-high": "6px 6px 20px rgba(0, 0, 0, 0.25)"
+}

frontend/src/app/spot/styles/tokens/dist/tokens.sass

@@ -0,0 +1,56 @@
+
+$spot-color-basic-black: rgb(0, 0, 0)
+$spot-color-basic-gray-1: rgb(51, 51, 51)
+$spot-color-basic-gray-2: rgb(85, 85, 85)
+$spot-color-basic-gray-3: rgb(135, 135, 135)
+$spot-color-basic-gray-4: rgb(204, 204, 204)
+$spot-color-basic-gray-5: rgb(224, 224, 224)
+$spot-color-basic-gray-6: rgb(243, 243, 243)
+$spot-color-basic-white: rgb(255, 255, 255)
+$spot-color-main: rgb(26, 103, 163)
+$spot-color-main-dark: rgb(3, 69, 121)
+$spot-color-main-light: rgb(209, 229, 245)
+$spot-color-accent: rgb(48, 135, 32)
+$spot-color-accent-dark: rgb(0, 117, 40)
+$spot-color-accent-light: rgb(191, 238, 182)
+$spot-color-danger: rgb(208, 17, 0)
+$spot-color-danger-dark: rgb(125, 0, 13)
+$spot-color-danger-light: rgb(244, 171, 169)
+$spot-color-indication-notification: rgb(0, 163, 255)
+$spot-color-indication-flagged: rgb(28, 182, 192)
+$spot-color-indication-current-date: rgb(255, 255, 225)
+$spot-color-feedback-error-dark: rgb(202, 63, 63)
+$spot-color-feedback-error-light: rgb(254, 218, 218)
+$spot-color-feedback-warning-dark: rgb(239, 158, 86)
+$spot-color-feedback-warning-light: rgb(255, 230, 198)
+$spot-color-feedback-success-dark: rgb(53, 197, 63)
+$spot-color-feedback-success-light: rgb(216, 253, 209)
+$spot-color-feedback-info-dark: rgb(143, 192, 219)
+$spot-color-feedback-info-light: rgb(227, 245, 255)
+$spot-spacing-5: 5rem
+$spot-spacing-6: 6rem
+$spot-spacing-1-75: 1.75rem
+$spot-spacing-7: 7rem
+$spot-spacing-0-75: 0.75rem
+$spot-spacing-8: 8rem
+$spot-spacing-9: 9rem
+$spot-spacing-2-25: 2.25rem
+$spot-spacing-1-25: 1.25rem
+$spot-spacing-0-25: 0.25rem
+$spot-spacing-0-5: 0.5rem
+$spot-spacing-1-5: 1.5rem
+$spot-spacing-2-5: 2.5rem
+$spot-spacing-10: 10rem
+$spot-spacing-3-5: 3.5rem
+$spot-spacing-4-5: 4.5rem
+$spot-spacing-5-5: 5.5rem
+$spot-spacing-1: 1rem
+$spot-spacing-2: 2rem
+$spot-spacing-3: 3rem
+$spot-spacing-4: 4rem
+$spot-shadow-light-low: 2px 2px 5px rgba(0, 0, 0, 0.15)
+$spot-shadow-light-mid: 4px 4px 10px rgba(0, 0, 0, 0.15)
+$spot-shadow-light-high: 6px 6px 20px rgba(0, 0, 0, 0.15)
+$spot-shadow-hard-low: 2px 2px 5px rgba(0, 0, 0, 0.25)
+$spot-shadow-hard-mid: 4px 4px 10px rgba(0, 0, 0, 0.25)
+$spot-shadow-hard-high: 6px 6px 20px rgba(0, 0, 0, 0.25)

frontend/src/app/spot/styles/tokens/shadows.yml

@@ -0,0 +1,18 @@
+props:
+  spot-shadow-light-low:
+    value: "2px 2px 5px rgba(0, 0, 0, 0.15)"
+  spot-shadow-light-mid:
+    value: "4px 4px 10px rgba(0, 0, 0, 0.15)"
+  spot-shadow-light-high:
+    value: "6px 6px 20px rgba(0, 0, 0, 0.15)"
+
+  spot-shadow-hard-low:
+    value: "2px 2px 5px rgba(0, 0, 0, 0.25)"
+  spot-shadow-hard-mid:
+    value: "4px 4px 10px rgba(0, 0, 0, 0.25)"
+  spot-shadow-hard-high:
+    value: "6px 6px 20px rgba(0, 0, 0, 0.25)"
+
+global:
+  type: box-shadow
+  category: shadows

frontend/src/app/spot/styles/tokens/spacings.yml

@@ -0,0 +1,47 @@
+props:
+  spot-spacing-0_25:
+    value: "0.25rem"
+  spot-spacing-0_5:
+    value: "0.5rem"
+  spot-spacing-0_75:
+    value: "0.75rem"
+  spot-spacing-1:
+    value: "1rem"
+  spot-spacing-1_25:
+    value: "1.25rem"
+  spot-spacing-1_5:
+    value: "1.5rem"
+  spot-spacing-1_75:
+    value: "1.75rem"
+  spot-spacing-2:
+    value: "2rem"
+  spot-spacing-2_25:
+    value: "2.25rem"
+  spot-spacing-2_5:
+    value: "2.5rem"
+  spot-spacing-3:
+    value: "3rem"
+  spot-spacing-3_5:
+    value: "3.5rem"
+  spot-spacing-4:
+    value: "4rem"
+  spot-spacing-4_5:
+    value: "4.5rem"
+  spot-spacing-5:
+    value: "5rem"
+  spot-spacing-5_5:
+    value: "5.5rem"
+  spot-spacing-6:
+    value: "6rem"
+  spot-spacing-7:
+    value: "7rem"
+  spot-spacing-8:
+    value: "8rem"
+  spot-spacing-9:
+    value: "9rem"
+  spot-spacing-10:
+    value: "10rem"
+
+global:
+  type: spacing
+  category: spacings

frontend/src/app/spot/styles/tokens/tokens.yml

@@ -0,0 +1,4 @@
+imports:
+  - ./colors.yml
+  - ./spacings.yml
+  - ./shadows.yml

frontend/src/global_styles/openproject.sass

@@ -5,6 +5,7 @@
 @import "content/_index.sass"
 
 @import "./common/openproject-common.module"
+@import "../app/spot/styles/sass"
 @import "../app/shared/components/modal/modal.module"
 
 // Dynamically linked plugin styles from Rails plugins

nix/shell.nix

@@ -1,4 +1,5 @@
-{ pkgs ? import <nixpkgs> {} }:
+{ pkgs ? import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/8ca77a63599ed951d6a2d244c1d62092776a3fe1.tar.gz") {}
+}:
 with pkgs;
 let 
   op-get-test-failures = writeShellScriptBin "op-get-test-failures" ''