fix(grid-list): hide overflow on tiles (#1299)

src/demo-app/snack-bar/snack-bar-demo.html

@@ -2,11 +2,13 @@ <h1>SnackBar demo</h1>
 <div>
   <div>Message: <md-input type="text" [(ngModel)]="message"></md-input></div>
   <div>
-    <md-checkbox [(ngModel)]="action">Show button</md-checkbox>
-    <md-input type="text" class="button-label-input"
-              placeholder="Snack bar action label"
-              [disabled]="!action"
-              [(ngModel)]="actionButtonLabel"></md-input>
+    <md-checkbox [(ngModel)]="action">
+      <p *ngIf="!action">Show button</p>
+      <md-input type="text" class="button-label-input"
+                *ngIf="action"
+                placeholder="Snack bar action label"
+                [(ngModel)]="actionButtonLabel"></md-input>
+    </md-checkbox>
   </div>
 </div>
 

src/lib/grid-list/grid-list.scss

@@ -20,6 +20,7 @@ md-grid-list {
 md-grid-tile {
   display: block;
   position: absolute;
+  overflow: hidden;
 
   figure {
     display: flex;

src/lib/snack-bar/simple-snack-bar.scss

@@ -1,6 +1,6 @@
 md-simple-snackbar {
-    display: flex;
-    justify-content: space-between;
+  display: flex;
+  justify-content: space-between;
 }
 
 .md-simple-snackbar-message {

src/lib/snack-bar/simple-snack-bar.ts

@@ -1,20 +1,32 @@
 import {Component} from '@angular/core';
-import {BaseSnackBarContent} from './base-snack-bar';
+import {MdSnackBarRef} from './snack-bar-ref';
 
 
+/**
+ * A component used to open as the default snack bar, matching material spec.
+ * This should only be used internally by the snack bar service.
+ */
 @Component({
   moduleId: module.id,
   selector: 'simple-snack-bar',
   templateUrl: 'simple-snack-bar.html',
   styleUrls: ['simple-snack-bar.css'],
 })
-export class SimpleSnackBar extends BaseSnackBarContent<SimpleSnackBar> {
+export class SimpleSnackBar {
   /** The message to be shown in the snack bar. */
   message: string;
 
   /** The label for the button in the snack bar. */
   action: string;
 
+  /** The instance of the component making up the content of the snack bar. */
+  snackBarRef: MdSnackBarRef<SimpleSnackBar>;
+
+  /** Dismisses the snack bar. */
+  dismiss(): void {
+    this.snackBarRef.dismiss();
+  }
+
   /** If the action button should be shown. */
   get hasAction(): boolean { return !!this.action; }
 }

src/lib/snack-bar/snack-bar-config.ts

@@ -1,11 +1,13 @@
 import {ViewContainerRef} from '@angular/core';
+import {AriaLivePoliteness} from '@angular2-material/core'
 
 
-export type SnackBarRole = 'alert' | 'polite';
-
 export class MdSnackBarConfig {
-  /** The aria-role of the snack bar. */
-  role: SnackBarRole = 'alert';
+  /** The politeness level for the MdAriaLiveAnnouncer announcement. */
+  politeness: AriaLivePoliteness = 'assertive';
+
+  /** Message to be announced by the MdAriaLiveAnnouncer */
+  announcementMessage: string;
 
   /** The view container to place the overlay for the snack bar into. */
   viewContainerRef: ViewContainerRef;

src/lib/snack-bar/snack-bar-ref.ts

@@ -10,15 +10,15 @@ import {Subject} from 'rxjs/Subject';
  */
 export class MdSnackBarRef<T> {
   /** The instance of the component making up the content of the snack bar. */
-  readonly instance: T|any;
+  readonly instance: T;
 
   /** Subject for notifying the user that the snack bar has closed. */
   private _afterClosed: Subject<any> = new Subject();
 
   /** If the snack bar is active. */
   private _isActive: boolean = true;
 
-  constructor(instance: T|any, private _overlayRef: OverlayRef) {
+  constructor(instance: T, private _overlayRef: OverlayRef) {
     // Sets the readonly instance of the snack bar content component.
     this.instance = instance;
     this.afterDismissed().subscribe(null, null, () => { this._isActive = false; });

src/lib/snack-bar/snack-bar.ts

@@ -5,14 +5,15 @@ import {
   ComponentRef,
 } from '@angular/core';
 import {
-  Overlay,
-  OverlayState,
-  OverlayRef,
   ComponentType,
   ComponentPortal,
+  Overlay,
   OverlayModule,
+  OverlayRef,
+  OverlayState,
   PortalModule,
   OVERLAY_PROVIDERS,
+  MdLiveAnnouncer,
 } from '@angular2-material/core';
 import {CommonModule} from '@angular/common';
 import {MdSnackBarConfig} from './snack-bar-config';
@@ -35,7 +36,8 @@ export class MdSnackBar {
   /** A reference to the current snack bar in the view. */
   private _snackBarRef: MdSnackBarRef<any>;
 
-  constructor(private _overlay: Overlay) {}
+  constructor(private _overlay: Overlay,
+              private _live: MdLiveAnnouncer) {}
 
   /**
    * Creates and dispatches a snack bar with a custom component for the content, removing any
@@ -48,8 +50,9 @@ export class MdSnackBar {
     }
     let overlayRef = this._createOverlay();
     let snackBarContainer = this._attachSnackBarContainer(overlayRef, config);
-
-    return this._attachSnackbarContent(component, snackBarContainer, overlayRef);
+    let mdSnackBarRef = this._attachSnackbarContent(component, snackBarContainer, overlayRef);
+    this._live.announce(config.announcementMessage, config.politeness);
+    return mdSnackBarRef;
   }
 
 
@@ -58,7 +61,9 @@ export class MdSnackBar {
    */
   open(message: string, actionLabel: string,
        config: MdSnackBarConfig): MdSnackBarRef<SimpleSnackBar> {
+    config.announcementMessage = message;
     let simpleSnackBarRef = this.openFromComponent(SimpleSnackBar, config);
+    simpleSnackBarRef.instance.snackBarRef = simpleSnackBarRef;
     simpleSnackBarRef.instance.message = message;
     simpleSnackBarRef.instance.action = actionLabel;
     return simpleSnackBarRef;
@@ -87,7 +92,6 @@ export class MdSnackBar {
     let portal = new ComponentPortal(component);
     let contentRef = container.attachComponentPortal(portal);
     let snackBarRef = <MdSnackBarRef<T>> new MdSnackBarRef(contentRef.instance, overlayRef);
-    snackBarRef.instance.snackBarRef = snackBarRef;
 
     this._snackBarRef = snackBarRef;
     return snackBarRef;
@@ -118,7 +122,7 @@ export class MdSnackBarModule {
   static forRoot(): ModuleWithProviders {
     return {
       ngModule: MdSnackBarModule,
-      providers: [MdSnackBar, OVERLAY_PROVIDERS]
+      providers: [MdSnackBar, OVERLAY_PROVIDERS, MdLiveAnnouncer]
     };
   }
 }