chore: add CanDisable mixin to checkbox, radio-group, slide-toggle, and (#4209)

slider

src/lib/button/button.ts

@@ -97,9 +97,9 @@ export const _MdButtonMixinBase = mixinDisabled(MdButtonBase);
   host: {
     '[disabled]': 'disabled || null',
   },
-  inputs: ['disabled'],
   templateUrl: 'button.html',
   styleUrls: ['button.css'],
+  inputs: ['disabled'],
   encapsulation: ViewEncapsulation.None,
   changeDetection: ChangeDetectionStrategy.OnPush,
 })

src/lib/checkbox/checkbox.ts

@@ -1,26 +1,22 @@
 import {
-  ChangeDetectorRef,
+  AfterViewInit,
   ChangeDetectionStrategy,
+  ChangeDetectorRef,
   Component,
   ElementRef,
   EventEmitter,
+  forwardRef,
   Input,
+  OnDestroy,
   Output,
   Renderer,
-  ViewEncapsulation,
-  forwardRef,
   ViewChild,
-  AfterViewInit,
-  OnDestroy,
+  ViewEncapsulation,
 } from '@angular/core';
-import {NG_VALUE_ACCESSOR, ControlValueAccessor} from '@angular/forms';
+import {ControlValueAccessor, NG_VALUE_ACCESSOR} from '@angular/forms';
 import {coerceBooleanProperty} from '../core/coercion/boolean-property';
-import {
-  MdRipple,
-  RippleRef,
-  FocusOriginMonitor,
-  FocusOrigin,
-} from '../core';
+import {FocusOrigin, FocusOriginMonitor, MdRipple, RippleRef} from '../core';
+import {mixinDisabled, CanDisable} from '../core/common-behaviors/disabled';
 
 
 /** Monotonically increasing integer used to auto-generate unique ids for checkbox components. */
@@ -60,6 +56,11 @@ export class MdCheckboxChange {
   checked: boolean;
 }
 
+// Boilerplate for applying mixins to MdCheckbox.
+export class MdCheckboxBase { }
+export const _MdCheckboxMixinBase = mixinDisabled(MdCheckboxBase);
+
+
 /**
  * A material design checkbox component. Supports all of the functionality of an HTML5 checkbox,
  * and exposes a similar API. A MdCheckbox can be either checked, unchecked, indeterminate, or
@@ -74,17 +75,19 @@ export class MdCheckboxChange {
   templateUrl: 'checkbox.html',
   styleUrls: ['checkbox.css'],
   host: {
-    '[class.mat-checkbox]': 'true',
+    'class': 'mat-checkbox',
     '[class.mat-checkbox-indeterminate]': 'indeterminate',
     '[class.mat-checkbox-checked]': 'checked',
     '[class.mat-checkbox-disabled]': 'disabled',
     '[class.mat-checkbox-label-before]': 'labelPosition == "before"',
   },
   providers: [MD_CHECKBOX_CONTROL_VALUE_ACCESSOR],
+  inputs: ['disabled'],
   encapsulation: ViewEncapsulation.None,
   changeDetection: ChangeDetectionStrategy.OnPush
 })
-export class MdCheckbox implements ControlValueAccessor, AfterViewInit, OnDestroy {
+export class MdCheckbox extends _MdCheckboxMixinBase
+    implements ControlValueAccessor, AfterViewInit, OnDestroy, CanDisable {
   /**
    * Attached to the aria-label attribute of the host element. In most cases, arial-labelledby will
    * take precedence so this may be omitted.
@@ -137,13 +140,6 @@ export class MdCheckbox implements ControlValueAccessor, AfterViewInit, OnDestro
   /** Whether the label should appear after or before the checkbox. Defaults to 'after' */
   @Input() labelPosition: 'before' | 'after' = 'after';
 
-  private _disabled: boolean = false;
-
-  /** Whether the checkbox is disabled. */
-  @Input()
-  get disabled(): boolean { return this._disabled; }
-  set disabled(value) { this._disabled = coerceBooleanProperty(value); }
-
   /** Tabindex value that is passed to the underlying input element. */
   @Input() tabIndex: number = 0;
 
@@ -189,6 +185,7 @@ export class MdCheckbox implements ControlValueAccessor, AfterViewInit, OnDestro
               private _elementRef: ElementRef,
               private _changeDetectorRef: ChangeDetectorRef,
               private _focusOriginMonitor: FocusOriginMonitor) {
+    super();
     this.color = 'accent';
   }
 

src/lib/radio/radio.ts

@@ -26,6 +26,7 @@ import {
   FocusOrigin,
 } from '../core';
 import {coerceBooleanProperty} from '../core/coercion/boolean-property';
+import {mixinDisabled, CanDisable} from '../core/common-behaviors/disabled';
 
 
 /**
@@ -49,6 +50,11 @@ export class MdRadioChange {
   value: any;
 }
 
+
+// Boilerplate for applying mixins to MdRadioGroup.
+export class MdRadioGroupBase { }
+export const _MdRadioGroupMixinBase = mixinDisabled(MdRadioGroupBase);
+
 /**
  * A group of radio buttons. May contain one or more `<md-radio-button>` elements.
  */
@@ -59,8 +65,10 @@ export class MdRadioChange {
     'role': 'radiogroup',
     '[class.mat-radio-group]': 'true',
   },
+  inputs: ['disabled'],
 })
-export class MdRadioGroup implements AfterContentInit, ControlValueAccessor {
+export class MdRadioGroup extends _MdRadioGroupMixinBase
+    implements AfterContentInit, ControlValueAccessor, CanDisable {
   /**
    * Selected value for group. Should equal the value of the selected radio button if there *is*
    * a corresponding radio button with a matching value. If there is *not* such a corresponding
@@ -72,9 +80,6 @@ export class MdRadioGroup implements AfterContentInit, ControlValueAccessor {
   /** The HTML name attribute applied to radio buttons in this group. */
   private _name: string = `md-radio-group-${_uniqueIdCounter++}`;
 
-  /** Disables all individual radio buttons assigned to this group. */
-  private _disabled: boolean = false;
-
   /** The currently selected radio button. Should match value. */
   private _selected: MdRadioButton = null;
 
@@ -127,14 +132,6 @@ export class MdRadioGroup implements AfterContentInit, ControlValueAccessor {
   /** Whether the labels should appear after or before the radio-buttons. Defaults to 'after' */
   @Input() labelPosition: 'before' | 'after' = 'after';
 
-  /** Whether the radio button is disabled. */
-  @Input()
-  get disabled(): boolean { return this._disabled; }
-  set disabled(value) {
-    // The presence of *any* disabled value makes the component disabled, *except* for false.
-    this._disabled = (value != null && value !== false) ? true : null;
-  }
-
   /** Value of the radio button. */
   @Input()
   get value(): any { return this._value; }
@@ -369,8 +366,7 @@ export class MdRadioButton implements OnInit, AfterViewInit, OnDestroy {
   }
 
   set disabled(value: boolean) {
-    // The presence of *any* disabled value makes the component disabled, *except* for false.
-    this._disabled = (value != null && value !== false) ? true : null;
+    this._disabled = coerceBooleanProperty(value);
   }
 
   /**

src/lib/slide-toggle/slide-toggle.ts

@@ -1,28 +1,29 @@
 import {
+  AfterContentInit,
+  ChangeDetectionStrategy,
   Component,
   ElementRef,
-  Renderer,
-  forwardRef,
-  ChangeDetectionStrategy,
-  Input,
-  Output,
   EventEmitter,
-  AfterContentInit,
-  ViewChild,
-  ViewEncapsulation,
+  forwardRef,
+  Input,
   OnDestroy,
+  Output,
+  Renderer,
+  ViewChild,
+  ViewEncapsulation
 } from '@angular/core';
 import {
   applyCssTransform,
   coerceBooleanProperty,
-  HammerInput,
-  FocusOriginMonitor,
   FocusOrigin,
+  FocusOriginMonitor,
+  HammerInput,
   MdRipple,
   RippleRef
 } from '../core';
 import {ControlValueAccessor, NG_VALUE_ACCESSOR} from '@angular/forms';
-import {Observable} from 'rxjs/Observable';
+import {mixinDisabled, CanDisable} from '../core/common-behaviors/disabled';
+
 
 export const MD_SLIDE_TOGGLE_VALUE_ACCESSOR: any = {
   provide: NG_VALUE_ACCESSOR,
@@ -39,9 +40,13 @@ export class MdSlideToggleChange {
 // Increasing integer for generating unique ids for slide-toggle components.
 let nextId = 0;
 
-/**
- * Two-state control, which can be also called `switch`.
- */
+
+
+// Boilerplate for applying mixins to MdSlideToggle.
+export class MdSlideToggleBase { }
+export const _MdSlideToggleMixinBase = mixinDisabled(MdSlideToggleBase);
+
+/** Represents a slidable "switch" toggle that can be moved between on and off. */
 @Component({
   moduleId: module.id,
   selector: 'md-slide-toggle, mat-slide-toggle',
@@ -54,11 +59,12 @@ let nextId = 0;
   templateUrl: 'slide-toggle.html',
   styleUrls: ['slide-toggle.css'],
   providers: [MD_SLIDE_TOGGLE_VALUE_ACCESSOR],
+  inputs: ['disabled'],
   encapsulation: ViewEncapsulation.None,
   changeDetection: ChangeDetectionStrategy.OnPush
 })
-export class MdSlideToggle implements OnDestroy, AfterContentInit, ControlValueAccessor {
-
+export class MdSlideToggle extends _MdSlideToggleMixinBase
+    implements OnDestroy, AfterContentInit, ControlValueAccessor, CanDisable {
   private onChange = (_: any) => {};
   private onTouched = () => {};
 
@@ -67,7 +73,6 @@ export class MdSlideToggle implements OnDestroy, AfterContentInit, ControlValueA
   private _checked: boolean = false;
   private _color: string;
   private _slideRenderer: SlideToggleRenderer = null;
-  private _disabled: boolean = false;
   private _required: boolean = false;
   private _disableRipple: boolean = false;
 
@@ -92,11 +97,6 @@ export class MdSlideToggle implements OnDestroy, AfterContentInit, ControlValueA
   /** Used to set the aria-labelledby attribute on the underlying input element. */
   @Input('aria-labelledby') ariaLabelledby: string = null;
 
-  /** Whether the slide-toggle is disabled. */
-  @Input()
-  get disabled(): boolean { return this._disabled; }
-  set disabled(value) { this._disabled = coerceBooleanProperty(value); }
-
   /** Whether the slide-toggle is required. */
   @Input()
   get required(): boolean { return this._required; }
@@ -121,7 +121,9 @@ export class MdSlideToggle implements OnDestroy, AfterContentInit, ControlValueA
 
   constructor(private _elementRef: ElementRef,
               private _renderer: Renderer,
-              private _focusOriginMonitor: FocusOriginMonitor) {}
+              private _focusOriginMonitor: FocusOriginMonitor) {
+    super();
+  }
 
   ngAfterContentInit() {
     this._slideRenderer = new SlideToggleRenderer(this._elementRef);

src/lib/slider/slider.ts

@@ -24,6 +24,8 @@ import {
   UP_ARROW
 } from '../core/keyboard/keycodes';
 import {FocusOrigin, FocusOriginMonitor} from '../core/style/focus-origin-monitor';
+import {mixinDisabled, CanDisable} from '../core/common-behaviors/disabled';
+
 
 /**
  * Visually, a 30px separation between tick marks looks best. This is very subjective but it is
@@ -59,6 +61,11 @@ export class MdSliderChange {
   value: number;
 }
 
+
+// Boilerplate for applying mixins to MdSlider.
+export class MdSliderBase { }
+export const _MdSliderMixinBase = mixinDisabled(MdSliderBase);
+
 /**
  * Allows users to select from a range of values by moving the slider thumb. It is similar in
  * behavior to the native `<input type="range">` element.
@@ -68,7 +75,6 @@ export class MdSliderChange {
   selector: 'md-slider, mat-slider',
   providers: [MD_SLIDER_VALUE_ACCESSOR],
   host: {
-    '[class.mat-slider]': 'true',
     '(focus)': '_onFocus()',
     '(blur)': '_onBlur()',
     '(click)': '_onClick($event)',
@@ -78,6 +84,7 @@ export class MdSliderChange {
     '(slide)': '_onSlide($event)',
     '(slideend)': '_onSlideEnd()',
     '(slidestart)': '_onSlideStart($event)',
+    'class': 'mat-slider',
     'role': 'slider',
     'tabindex': '0',
     '[attr.aria-disabled]': 'disabled',
@@ -99,15 +106,11 @@ export class MdSliderChange {
   },
   templateUrl: 'slider.html',
   styleUrls: ['slider.css'],
+  inputs: ['disabled'],
   encapsulation: ViewEncapsulation.None,
 })
-export class MdSlider implements ControlValueAccessor, OnDestroy {
-  /** Whether or not the slider is disabled. */
-  @Input()
-  get disabled(): boolean { return this._disabled; }
-  set disabled(value) { this._disabled = coerceBooleanProperty(value); }
-  private _disabled: boolean = false;
-
+export class MdSlider extends _MdSliderMixinBase
+    implements ControlValueAccessor, OnDestroy, CanDisable {
   /** Whether the slider is inverted. */
   @Input()
   get invert() { return this._invert; }
@@ -379,6 +382,7 @@ export class MdSlider implements ControlValueAccessor, OnDestroy {
 
   constructor(renderer: Renderer, private _elementRef: ElementRef,
               private _focusOriginMonitor: FocusOriginMonitor, @Optional() private _dir: Dir) {
+    super();
     this._focusOriginMonitor.monitor(this._elementRef.nativeElement, renderer, true)
         .subscribe((origin: FocusOrigin) => this._isActive = !!origin && origin !== 'keyboard');
     this._renderer = new SliderRenderer(this._elementRef);