feat: add loading state to launcher with label (COR-4435) (#523)

Author: sofly

packages/chat/src/components/Launcher/Launcher.story.tsx

@@ -22,14 +22,23 @@ export default meta;
 
 const CollapsableLauncher = (props: any) => {
   const [isOpen, setIsOpen] = useState(false);
+  const [counter, setCounter] = useState(0);
+  const [isDisabled, setIsDisabled] = useState(false);
 
   return (
     <Launcher
       isOpen={isOpen}
+      isLoading={isDisabled}
+      isDisabled={isDisabled}
       {...props}
       onClick={() => {
         setIsOpen((prev) => !prev);
-        props.onClick?.();
+
+        setCounter((prev) => prev + 1);
+
+        if (counter % 3 === 0) return;
+
+        setIsDisabled(!isDisabled);
       }}
     />
   );
@@ -51,23 +60,7 @@ export const Loading: Story = { render: () => <CollapsableLauncher isLoading />
 
 export const DisabledAndLoading: Story = {
   render: () => {
-    const [counter, setCounter] = useState(0);
-    const [isDisabled, setIsDisabled] = useState(true);
-
-    return (
-      <CollapsableLauncher
-        isLoading={isDisabled}
-        isDisabled={isDisabled}
-        image={tiledBg}
-        onClick={() => {
-          setCounter((prev) => prev + 1);
-
-          if (counter % 3 === 0) return;
-
-          setIsDisabled(!isDisabled);
-        }}
-      />
-    );
+    return <CollapsableLauncher image={tiledBg} />;
   },
 };
 

packages/chat/src/components/Launcher/LauncherWithLabel/index.tsx

@@ -5,10 +5,19 @@ import React from 'react';
 import { Button } from '@/components/Button';
 import { ClassName } from '@/constants';
 
+import { LoadingSpinner } from '../../LoadingSpinner/LoadingSpinner';
 import { ChevronIcon } from '../ChevronIcon';
 import { DEFAULT_ICON } from '../constant';
 import { PhoneIcon } from '../PhoneIcon';
-import { closeChevron, imageIconStyle, imageIconWrapper, launcherLabelStyles, launcherStyles } from './styles.css';
+import {
+  closeChevron,
+  containerLoaderStyles,
+  imageIconStyle,
+  imageIconWrapper,
+  launcherLabelStyles,
+  launcherStyles,
+  loadingSpinnerStyles,
+} from './styles.css';
 
 export interface LauncherProps {
   /**
@@ -43,21 +52,51 @@ export interface LauncherProps {
    * Flag to use image.
    */
   withIcon?: boolean;
+
+  /**
+   * Flag to show loader in the launcher.
+   */
+  isLoading?: boolean;
+
+  /**
+   * Flag to disable the launcher.
+   */
+  isDisabled?: boolean;
 }
 
 /**
  * A floating action button used to launch the chat widget.
  *
  * @see {@link https://voiceflow.github.io/react-chat/?path=/story/components-launcher--default}
  */
-export const LauncherWithLabel: React.FC<LauncherProps> = ({ isVoice, withIcon, image, isOpen, label, onClick }) => {
+export const LauncherWithLabel: React.FC<LauncherProps> = ({
+  isVoice,
+  withIcon,
+  image,
+  isOpen,
+  label,
+  onClick,
+  isLoading,
+  isDisabled,
+}) => {
   const showDefaultPhoneIcon = !image && isVoice;
 
+  const loader = (
+    <div className={containerLoaderStyles}>
+      <LoadingSpinner className={loadingSpinnerStyles} variant="light" size="large" />
+    </div>
+  );
+
   return (
-    <Button className={clsx(launcherStyles({ isOpen, noImage: !withIcon }), ClassName.LAUNCHER)} onClick={onClick}>
+    <Button
+      onClick={onClick}
+      className={clsx(launcherStyles({ isOpen, noImage: !withIcon, isDisabled, isLoading }), ClassName.LAUNCHER)}
+    >
       <div className={imageIconWrapper({ isOpen, noImage: !withIcon })}>
         {withIcon && (
           <>
+            {isLoading && loader}
+
             {showDefaultPhoneIcon && <PhoneIcon className={clsx(imageIconStyle({ isOpen }))} fill="white" />}
 
             {!showDefaultPhoneIcon && (
@@ -68,6 +107,9 @@ export const LauncherWithLabel: React.FC<LauncherProps> = ({ isVoice, withIcon,
 
         <ChevronIcon className={clsx(closeChevron({ isOpen }))} />
       </div>
+
+      {isLoading && !withIcon && loader}
+
       <div className={launcherLabelStyles}>{label}</div>
     </Button>
   );

packages/chat/src/components/Launcher/LauncherWithLabel/styles.css.ts

@@ -1,4 +1,4 @@
-import { keyframes, style } from '@vanilla-extract/css';
+import { keyframes, style, styleVariants } from '@vanilla-extract/css';
 import { recipe } from '@vanilla-extract/recipes';
 
 import { fadeInSlideUp } from '@/components/UserResponse/styles.css';
@@ -9,6 +9,14 @@ import { transition } from '@/styles/transitions';
 const LAUNCHER_WITH_LABEL_SIZE = 40;
 const BEZIER = 'cubic-bezier(0.4, 0, 0.2, 1)';
 
+const loadingVariant = styleVariants({
+  true: {},
+});
+
+const noImageVariant = styleVariants({
+  true: {},
+});
+
 export const launcherStyles = recipe({
   base: {
     borderRadius: '9999px',
@@ -68,7 +76,23 @@ export const launcherStyles = recipe({
         padding: '8px 16px 8px 12px',
       },
     },
-    noImage: { true: {} },
+    isDisabled: {
+      true: {
+        backgroundColor: THEME.colors[300],
+
+        ':hover': {
+          transform: 'none',
+          backgroundColor: THEME.colors[300],
+        },
+        ':active': {
+          transform: 'none',
+          backgroundColor: THEME.colors[300],
+        },
+      },
+    },
+
+    noImage: noImageVariant,
+    isLoading: loadingVariant,
   },
   compoundVariants: [
     {
@@ -90,6 +114,12 @@ export const launcherLabelStyles = style({
   textAlign: 'left',
   padding: '3px 0 1px 0',
   transition: `all ${duration.mid} ${BEZIER}`,
+
+  selectors: {
+    [`${loadingVariant.true}${noImageVariant.true} &`]: {
+      opacity: 0,
+    },
+  },
 });
 
 export const twistInAnimation = keyframes({
@@ -116,12 +146,18 @@ export const twistOutAnimation = keyframes({
 export const closeChevron = recipe({
   base: {
     transform: 'rotate(0deg)',
-    transition: transition(['width']),
+    transition: transition(['width', 'opacity']),
     position: 'absolute',
     width: '32px',
     height: '32px',
     left: 0,
     opacity: 0,
+
+    selectors: {
+      [`${loadingVariant.true} &`]: {
+        opacity: '0 !important',
+      },
+    },
   },
   variants: {
     isOpen: {
@@ -148,6 +184,12 @@ export const imageIconStyle = recipe({
 
     flexShrink: 0,
     transition: transition(['opacity']),
+
+    selectors: {
+      [`${loadingVariant.true} &`]: {
+        opacity: 0,
+      },
+    },
   },
   variants: {
     isOpen: {
@@ -202,3 +244,19 @@ export const imageIconWrapper = recipe({
     },
   ],
 });
+
+export const loadingSpinnerStyles = style({
+  color: 'white',
+  height: '24px',
+  width: '24px',
+});
+
+export const containerLoaderStyles = style({
+  position: 'absolute',
+  top: '50%',
+  left: '50%',
+
+  height: '24px',
+
+  transform: 'translate(-50%, -50%)',
+});

packages/chat/src/components/Launcher/index.tsx

@@ -96,6 +96,8 @@ export const Launcher: React.FC<LauncherProps> = ({
         onClick={onClick}
         isVoice={isVoice}
         withIcon={withIcon}
+        isLoading={isLoading}
+        isDisabled={isDisabled}
       />
     );
   }