RHCLOUD-31242 Add chatbot loading state

packages/module/patternfly-docs/content/extensions/virtual-assistant/examples/VirtualAssistant/VirtualAssistant.md

@@ -16,6 +16,8 @@ sourceLink: https://github.com/patternfly/virtual-assistant/blob/main/packages/m
 
 import VirtualAssistant from '@patternfly/virtual-assistant/dist/dynamic/VirtualAssistant';
 import VirtualAssistantAction from '@patternfly/virtual-assistant/dist/dynamic/VirtualAssistantAction';
+import LoadingMessage from '@patternfly/virtual-assistant/dist/dynamic/LoadingMessage';
+import { GrinIcon } from '@patternfly/react-icons';
 import { AngleDownIcon } from '@patternfly/react-icons';
 
 The **virtual assistant** component renders body of the virtual assistant window.
@@ -61,3 +63,12 @@ Custom actions can be added to the assistant body using the `actions` property.
 ```js file="./VirtualAssistantWithActions.tsx"
 
 ```
+
+### Loading Messages
+
+The `LoadingMessage` component shows a typing indicator for messages still being processed, introducing an intentional delay to simulate a smoother flow of conversation. Additionally, it allows for the use of a custom icon through the `icon` property.
+
+
+```js file="./VirtualAssistantLoadingMessage.tsx"
+
+```

packages/module/patternfly-docs/content/extensions/virtual-assistant/examples/VirtualAssistant/VirtualAssistantLoadingMessage.tsx

@@ -0,0 +1,11 @@
+import React from 'react';
+import VirtualAssistant from '@patternfly/virtual-assistant/dist/dynamic/VirtualAssistant';
+import LoadingMessage from '@patternfly/virtual-assistant/dist/esm/LoadingMessage'
+import GrinIcon from '@patternfly/react-icons/dist/js/icons/bacon-icon';
+
+export const BasicExample: React.FunctionComponent = () => (
+  <VirtualAssistant >
+    <LoadingMessage />
+    <LoadingMessage icon={GrinIcon} />
+  </VirtualAssistant>
+);

packages/module/src/LoadingMessage/LoadingMessage.tsx

@@ -0,0 +1,86 @@
+import React from 'react';
+import { Icon, Split, SplitItem } from '@patternfly/react-core';
+import { createUseStyles } from 'react-jss';
+import classnames from "clsx";
+
+import RobotIcon from '@patternfly/react-icons/dist/js/icons/robot-icon';
+
+const useStyles = createUseStyles({
+  chatbot: {
+    marginBottom: "var(--pf-v5-global--spacer--md)",
+    marginRight: "40px",
+  },
+  bubble: {
+    border: "1px solid var(--pf-v5-global--BackgroundColor--dark-400)",
+    borderRadius: "14px",
+    padding: "var(--pf-v5-global--spacer--sm) var(--pf-v5-global--spacer--md) var(--pf-v5-global--spacer--sm) var(--pf-v5-global--spacer--md)",
+    maxWidth: "100%",
+    wordWrap: "break-word",
+  },
+  "@keyframes mercuryTypingAnimation": {
+    "0%": {
+      transform: "translateY(0px)",
+      backgroundColor: "var(--pf-v5-global--palette--black-600)",
+    },
+    "28%": {
+      transform: "translateY(-7px)",
+      backgroundColor: "var(--pf-v5-global--palette--black-400)",
+    },
+    "44%": {
+      transform: "translateY(0px)",
+      backgroundColor: "var(--pf-v5-global--palette--black-200)",
+    }
+  },
+  dot: {},
+  typing: {
+    height: "17px",
+    "& $dot": {
+      animation: "$mercuryTypingAnimation 1.8s infinite ease-in-out",
+      borderRadius: "50%",
+      display: "inline-block",
+      height: "7px",
+      marginRight: "4px",
+      marginTop: "6px",
+      verticalAlign: "middle",
+      width: "7px",
+      "&:nth-child(1)": {
+        animationDelay: "200ms",
+      },
+      "&:nth-child(2)": {
+        animationDelay: "300ms",
+      },
+      "&:nth-child(3)": {
+        animationDelay: "400ms",
+      },
+      "&:last-child": {
+        marginRight: "0",
+      },
+    }
+  }
+})
+
+export interface LoadingMessageProps {
+  icon?: React.ComponentClass;
+}
+
+export const LoadingMessage: React.FunctionComponent<LoadingMessageProps> = ({ icon: IconComponent = RobotIcon }) => {
+  const classes = useStyles();
+  return (
+    <Split className={classes.chatbot}>
+      <SplitItem>
+        <Icon size="lg" className="pf-v5-u-mr-sm pf-v5-u-pt-md">
+          <IconComponent />
+        </Icon>
+      </SplitItem>
+      <SplitItem className={classnames(classes.bubble," pf-u-background-color-200")} >
+        <div className={classnames(classes.typing,"pf-v5-u-display-flex pf-u-align-items-center")}>
+          <div className={classes.dot}></div>
+          <div className={classes.dot}></div>
+          <div className={classes.dot}></div>
+        </div>
+      </SplitItem>
+    </Split>
+  );
+};
+
+export default LoadingMessage;

packages/module/src/LoadingMessage/index.ts

@@ -0,0 +1,3 @@
+export { default } from './LoadingMessage';
+
+export * from './LoadingMessage';

packages/module/src/index.ts

@@ -1,5 +1,8 @@
 // this file is autogenerated by generate-index.js, modifying it manually will have no effect
 
+export { default as LoadingMessage } from './LoadingMessage';
+export * from './LoadingMessage';
+
 export { default as VirtualAssistant } from './VirtualAssistant';
 export * from './VirtualAssistant';