[Incomplete] Feature: Snackbar implementation

package.json

@@ -78,6 +78,7 @@
     "@material/notched-outline": "^0.41.0",
     "@material/ripple": "^0.41.0",
     "@material/select": "^0.40.1",
+    "@material/snackbar": "^0.43.0",
     "@material/switch": "^0.41.0",
     "@material/tab": "^0.41.0",
     "@material/tab-bar": "^0.41.0",

packages/snackbar/README.md

@@ -0,0 +1,91 @@
+# React Snackbar
+
+A React version of an [MDC Snackbar](https://github.com/material-components/material-components-web/tree/master/packages/mdc-snackbar).
+
+## Installation
+
+```
+npm install @material/react-snackbar
+```
+
+## Usage
+
+### Styles
+
+with Sass:
+```js
+import '@material/react-snackbar/index.scss';
+```
+
+with CSS:
+```js
+import '@material/react-snackbar/dist/snackbar.css';
+```
+
+### Javascript Instantiation
+```js
+import React from 'react';
+import Snackbar from '@material/react-snackbar';
+
+class MyApp extends React.Component {
+  render() {
+    return (
+      <Snackbar message="Click Me!" actionText="dismiss" />
+    );
+  }
+}
+```
+
+## Props
+
+Prop Name | Type | Description
+--- | --- | ---
+message | String | Message to show in the snackbar
+className | String | Classes to be applied to the root element.
+timeoutMs | Number | Timeout in milliseconds when to close snackbar.
+closeOnEscape | Boolean | Closes popup on "Esc" button if true.
+actionText | String | Text for action button
+leading | Boolean | Shows snackbar on the left if true (or right for rtl languages)
+stacked | Boolean | Shows buttons under text if true
+onAnnounce | Function() => void | Callback for handling screenreader announce event
+onOpening | Function() => void | Callback for handling event, which happens before opening
+onOpen | Function(evt: Event) => void | Callback for handling event, which happens after opening
+onClosing | Function() => void | Callback for handling event, which happens before closing
+onClose | Function() => void | Callback for handling event, which happens after closing
+
+## Getting snackbar parameters
+
+If you need to get the `timeoutMs`, `closeOnEscape`, or `open` value, then you can use a ref like so:
+
+```js
+import React from 'react';
+import Snackbar from '@material/react-snackbar';
+ class MyApp extends React.Component {
+  getSnackbarInfo = (snackbar) => {
+    if (!snackbar) return;
+    console.log(snackbar.getTimeoutMs());
+    console.log(snackbar.isOpen());
+    console.log(snackbar.getCloseOnEscape());
+  }
+  render() {
+    return (
+      <Snackbar
+        message="Click Me!"
+        actionText="dismiss"
+        ref={this.getSnackbarInfo}
+      />
+    );
+  }
+}
+```
+
+## Sass Mixins
+
+Sass mixins may be available to customize various aspects of the Components. Please refer to the
+MDC Web repository for more information on what mixins are available, and how to use them.
+
+[Advanced Sass Mixins](https://github.com/material-components/material-components-web/blob/master/packages/mdc-snackbar/README.md#sass-mixins)
+
+## Usage with Icons
+
+Please see our [Best Practices doc](../../docs/best-practices.md#importing-font-icons) when importing or using icon fonts.

packages/snackbar/index.scss

@@ -0,0 +1,23 @@
+// The MIT License
+//
+// Copyright (c) 2018 Google, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+@import "@material/snackbar/mdc-snackbar";

packages/snackbar/index.tsx

@@ -0,0 +1,179 @@
+// The MIT License
+//
+// Copyright (c) 2019 Google, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+import * as React from 'react';
+import classnames from 'classnames';
+
+// TODO: replace with MDC Web types when available
+import {IMDCSnackbarAdapter, IMDCSnackbarFoundation} from './types';
+
+// @ts-ignore no .d.ts file
+import {MDCSnackbarFoundation} from '@material/snackbar';
+
+export interface Props {
+  message: string;
+  className?: string;
+  timeoutMs?: number;
+  closeOnEscape?: boolean;
+  actionText?: string;
+  leading?: boolean;
+  stacked?: boolean;
+  open?: boolean;
+  onOpening?: () => void;
+  onOpen?: () => void;
+  onClosing?: (reason: string) => void;
+  onClose?: (reason: string) => void;
+  onAnnounce?: () => void;
+};
+
+type State = {
+  classes: Set<string>,
+};
+
+export class Snackbar extends React.Component<Props, State> {
+  foundation: IMDCSnackbarFoundation
+
+  static defaultProps: Partial<Props> = {
+    open: true,
+    stacked: false,
+    leading: false,
+  }
+
+  constructor(props: Props) {
+    super(props);
+    const {timeoutMs, closeOnEscape, leading, stacked} = this.props;
+    const classes = new Set();
+    if (leading) {
+      classes.add('mdc-snackbar--leading');
+    }
+
+    if (stacked) {
+      classes.add('mdc-snackbar--stacked');
+    }
+
+    this.state = {
+      classes,
+    };
+
+    this.foundation = new MDCSnackbarFoundation(this.adapter);
+    if (timeoutMs) {
+      this.foundation.setTimeoutMs(timeoutMs);
+    }
+
+    if (closeOnEscape) {
+      this.foundation.setCloseOnEscape(closeOnEscape);
+    }
+  }
+  get adapter(): IMDCSnackbarAdapter {
+    return {
+      addClass: (className: string) => {
+        const {classes} = this.state;
+        classes.add(className);
+        this.setState({
+          classes,
+        });
+      },
+      removeClass: (className: string) => {
+        const {classes} = this.state;
+        classes.delete(className);
+        this.setState({
+          classes,
+        });
+      },
+      announce: () => {
+        // Usually it works automatically if this component uses conditional rendering
+        this.props.onAnnounce && this.props.onAnnounce();
+      },
+      notifyOpening: () => {
+        const {onOpening} = this.props;
+        if (onOpening) {
+          onOpening();
+        }
+      },
+      notifyOpened: () => {
+        const {onOpen} = this.props;
+        if (onOpen) {
+          onOpen();
+        }
+      },
+      notifyClosing: (reason: string) => {
+        const {onClosing} = this.props;
+        if (onClosing) {
+          onClosing(reason);
+        }
+      },
+      notifyClosed: (reason: string) => {
+        const {onClose} = this.props;
+        if (onClose) {
+          onClose(reason);
+        }
+      },
+    };
+  }
+  close(action: string) {
+    this.foundation.close(action);
+  }
+  getTimeoutMs() {
+    return this.foundation.getTimeoutMs();
+  }
+  getCloseOnEscape() {
+    return this.foundation.getCloseOnEscape();
+  }
+  isOpen() {
+    return this.foundation.isOpen();
+  }
+  handleKeyDown = (e: React.KeyboardEvent) => {
+    this.foundation.handleKeyDown(e.nativeEvent);
+  }
+  handleActionClick = (e: React.MouseEvent<HTMLButtonElement>) => {
+    this.foundation.handleActionButtonClick(e.nativeEvent);
+  }
+  componentDidMount() {
+    this.foundation.init();
+    if (this.props.open) {
+      this.foundation.open();
+    }
+  }
+  componentWillUnmount() {
+    this.foundation.destroy();
+  }
+  get classes() {
+    return classnames(this.props.className, 'mdc-snackbar', ...Array.from(this.state.classes));
+  }
+  render() {
+    return <div className={this.classes} onKeyDown={this.handleKeyDown}>
+      <div className='mdc-snackbar__surface'>
+        <div className='mdc-snackbar__label'
+          role='status'
+          aria-live='polite'>
+          {this.props.message}
+        </div>
+        {this.props.actionText ?
+          <div className='mdc-snackbar__actions'>
+            <button type='button' onClick={this.handleActionClick} className='mdc-button mdc-snackbar__action'>
+              {this.props.actionText}
+            </button>
+          </div> : null}
+      </div>
+    </div>;
+  }
+}

packages/snackbar/package.json

@@ -0,0 +1,26 @@
+{
+  "name": "@material/react-snackbar",
+  "version": "0.0.0",
+  "description": "Material Components React Snackbar",
+  "license": "MIT",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "keywords": [
+    "mdc web react",
+    "material components react",
+    "material design",
+    "material snackbar",
+    "materialsnackbar"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/material-components/material-components-web-react.git"
+  },
+  "dependencies": {
+    "classnames": "^2.2.5",
+    "react": "^16.4.2"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}

packages/snackbar/types.tsx

@@ -0,0 +1,49 @@
+// The MIT License
+//
+// Copyright (c) 2019 Google, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// TODO: remove this when MDC Web types are added.
+
+export interface IMDCSnackbarAdapter {
+    addClass(className: string): void
+    removeClass(className: string): void
+    announce(): void
+    notifyOpening(): void
+    notifyOpened(): void
+    notifyClosing(reason: string): void
+    notifyClosed(reason: string): void
+}
+
+export interface IMDCSnackbarFoundation {
+    open(): void;
+    close(action: string): void;
+    isOpen(): boolean
+    getTimeoutMs(): number
+    setTimeoutMs(timeoutMs: number): void
+    getCloseOnEscape(): boolean
+    setCloseOnEscape(closeOnEscape: boolean): void
+    handleKeyDown(event: KeyboardEvent): void
+    handleActionButtonClick(event: MouseEvent): void
+    handleActionIconClick(event: MouseEvent): void
+    init(): void
+    destroy(): void
+    adapter_: IMDCSnackbarAdapter
+}

scripts/package-json-reader.js

@@ -15,7 +15,7 @@ const readMaterialPackages = () => {
     }
   }
   return dependencies;
-}
+};
 
 
 module.exports = {readMaterialPackages};

test/screenshot/golden.json

@@ -15,6 +15,7 @@
   "notched-outline": "7770dd381c27608a1f43b6f83da92507fe53963f5e4409bd73184b86275538fe",
   "radio": "adfce0bbfa2711c67a52e1c3c3c7e980314be0147e340dac733152c80c385765",
   "select": "10b82843806ddc961e85192d231ba5c3bc5aef7c20c14ffda7dd1e857b5a8c9f",
+  "snackbar": "fb7f6f61f37095d7e7c92c9305eb797145d8e72c0c8dbc4e531f9aca91b0fd28",
   "switch": "dd8a3ec00447e0c586b5bbefdc633681d29e6f04ff8b517a68209bd1f4a6a4e4",
   "tab": "0e53fa0ca9b2de4ff7941169a9b6a929a83b18e517c18404adeb40f7e644a2f1",
   "tab-bar": "6c28ec268b2baf308459e7df9d7471fb7907b6473240b9a28a81be54a335f932",