feat(fab): typescript support (#495)

packages/fab/index.tsx

@@ -0,0 +1,80 @@
+// 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 * as React from 'react';
+import * as classnames from 'classnames';
+import * as Ripple from '@material/react-ripple';
+
+export interface FabProps extends Ripple.InjectedProps<HTMLButtonElement> {
+  mini?: boolean;
+  icon?: React.ReactElement<HTMLElement>;
+  textLabel?: string;
+  className?: string;
+  initRipple: React.Ref<HTMLButtonElement>;
+  unbounded: boolean;
+}
+
+const Icon: React.FunctionComponent<{icon?: React.ReactElement<HTMLElement>}> = ({icon}) => {
+  if (!icon) {
+    return null;
+  }
+  const updatedProps = {
+    className: classnames('mdc-fab__icon', icon.props.className),
+  };
+  return React.cloneElement(icon, updatedProps);
+};
+
+const TextLabel: React.FunctionComponent<{textLabel: string}> = ({
+  textLabel, // eslint-disable-line react/prop-types
+}) => {
+  if (textLabel.length === 0) {
+    return null;
+  }
+  return <span className='mdc-fab__label'>{textLabel}</span>;
+};
+
+export const Fab: React.FunctionComponent<FabProps & React.HTMLProps<HTMLButtonElement>> = ({
+  /* eslint-disable react/prop-types */
+  mini = false,
+  icon,
+  textLabel = '',
+  className = '',
+  initRipple = () => {},
+  unbounded,
+  /* eslint-enable react/prop-types */
+  ...otherProps
+}) => {
+  const extended = textLabel.length > 0;
+  const classes = classnames('mdc-fab', className, {
+    'mdc-fab--mini': mini,
+    'mdc-fab--extended': extended,
+  });
+
+  return (
+    <button className={classes} ref={initRipple} {...otherProps}>
+      <Icon icon={icon} />
+      <TextLabel textLabel={textLabel} />
+    </button>
+  );
+};
+
+export default Ripple.withRipple<FabProps, HTMLButtonElement>(Fab);