Alert Block

In this example, we create a custom Alert block which is used to emphasize text.

Try it out: Click the "!" icon to change the alert type!

Relevant Docs:

import { defaultProps } from "@blocknote/core";
import { createReactBlockSpec } from "@blocknote/react";
import { Menu } from "@mantine/core";
import { MdCancel, MdCheckCircle, MdError, MdInfo } from "react-icons/md";

import "./styles.css";

// The types of alerts that users can choose from.
export const alertTypes = [
  {
    title: "Warning",
    value: "warning",
    icon: MdError,
    color: "#e69819",
    backgroundColor: {
      light: "#fff6e6",
      dark: "#805d20",
    },
  },
  {
    title: "Error",
    value: "error",
    icon: MdCancel,
    color: "#d80d0d",
    backgroundColor: {
      light: "#ffe6e6",
      dark: "#802020",
    },
  },
  {
    title: "Info",
    value: "info",
    icon: MdInfo,
    color: "#507aff",
    backgroundColor: {
      light: "#e6ebff",
      dark: "#203380",
    },
  },
  {
    title: "Success",
    value: "success",
    icon: MdCheckCircle,
    color: "#0bc10b",
    backgroundColor: {
      light: "#e6ffe6",
      dark: "#208020",
    },
  },
] as const;

// The Alert block.
export const createAlert = createReactBlockSpec(
  {
    type: "alert",
    propSchema: {
      textAlignment: defaultProps.textAlignment,
      textColor: defaultProps.textColor,
      type: {
        default: "warning",
        values: ["warning", "error", "info", "success"],
      },
    },
    content: "inline",
  },
  {
    render: (props) => {
      const alertType = alertTypes.find(
        (a) => a.value === props.block.props.type,
      )!;
      const Icon = alertType.icon;
      return (
        <div className={"alert"} data-alert-type={props.block.props.type}>
          {/*Icon which opens a menu to choose the Alert type*/}
          <Menu withinPortal={false}>
            <Menu.Target>
              <div className={"alert-icon-wrapper"} contentEditable={false}>
                <Icon
                  className={"alert-icon"}
                  data-alert-icon-type={props.block.props.type}
                  size={32}
                />
              </div>
            </Menu.Target>
            {/*Dropdown to change the Alert type*/}
            <Menu.Dropdown>
              <Menu.Label>Alert Type</Menu.Label>
              <Menu.Divider />
              {alertTypes.map((type) => {
                const ItemIcon = type.icon;

                return (
                  <Menu.Item
                    key={type.value}
                    leftSection={
                      <ItemIcon
                        className={"alert-icon"}
                        data-alert-icon-type={type.value}
                      />
                    }
                    onClick={() =>
                      props.editor.updateBlock(props.block, {
                        type: "alert",
                        props: { type: type.value },
                      })
                    }
                  >
                    {type.title}
                  </Menu.Item>
                );
              })}
            </Menu.Dropdown>
          </Menu>
          {/*Rich text field for user to type in*/}
          <div className={"inline-content"} ref={props.contentRef} />
        </div>
      );
    },
  },
);

import { defaultProps } from "@blocknote/core";import { createReactBlockSpec } from "@blocknote/react";import { Menu } from "@mantine/core";import { MdCancel, MdCheckCircle, MdError, MdInfo } from "react-icons/md";import "./styles.css";// The types of alerts that users can choose from.export const alertTypes = [  {    title: "Warning",    value: "warning",    icon: MdError,    color: "#e69819",    backgroundColor: {      light: "#fff6e6",      dark: "#805d20",    },  },  {    title: "Error",    value: "error",    icon: MdCancel,    color: "#d80d0d",    backgroundColor: {      light: "#ffe6e6",      dark: "#802020",    },  },  {    title: "Info",    value: "info",    icon: MdInfo,    color: "#507aff",    backgroundColor: {      light: "#e6ebff",      dark: "#203380",    },  },  {    title: "Success",    value: "success",    icon: MdCheckCircle,    color: "#0bc10b",    backgroundColor: {      light: "#e6ffe6",      dark: "#208020",    },  },] as const;// The Alert block.export const createAlert = createReactBlockSpec(  {    type: "alert",    propSchema: {      textAlignment: defaultProps.textAlignment,      textColor: defaultProps.textColor,      type: {        default: "warning",        values: ["warning", "error", "info", "success"],      },    },    content: "inline",  },  {    render: (props) => {      const alertType = alertTypes.find(        (a) => a.value === props.block.props.type,      )!;      const Icon = alertType.icon;      return (        <div className={"alert"} data-alert-type={props.block.props.type}>          {/*Icon which opens a menu to choose the Alert type*/}          <Menu withinPortal={false}>            <Menu.Target>              <div className={"alert-icon-wrapper"} contentEditable={false}>                <Icon                  className={"alert-icon"}                  data-alert-icon-type={props.block.props.type}                  size={32}                />              </div>            </Menu.Target>            {/*Dropdown to change the Alert type*/}            <Menu.Dropdown>              <Menu.Label>Alert Type</Menu.Label>              <Menu.Divider />              {alertTypes.map((type) => {                const ItemIcon = type.icon;                return (                  <Menu.Item                    key={type.value}                    leftSection={                      <ItemIcon                        className={"alert-icon"}                        data-alert-icon-type={type.value}                      />                    }                    onClick={() =>                      props.editor.updateBlock(props.block, {                        type: "alert",                        props: { type: type.value },                      })                    }                  >                    {type.title}                  </Menu.Item>                );              })}            </Menu.Dropdown>          </Menu>          {/*Rich text field for user to type in*/}          <div className={"inline-content"} ref={props.contentRef} />        </div>      );    },  },);

import { BlockNoteSchema, defaultBlockSpecs } from "@blocknote/core";
import "@blocknote/core/fonts/inter.css";
import { BlockNoteView } from "@blocknote/mantine";
import "@blocknote/mantine/style.css";
import { useCreateBlockNote } from "@blocknote/react";

import { createAlert } from "./Alert";

// Our schema with block specs, which contain the configs and implementations for
// blocks that we want our editor to use.
const schema = BlockNoteSchema.create().extend({
  blockSpecs: {
    // Creates an instance of the Alert block and adds it to the schema.
    alert: createAlert(),
  },
});

export default function App() {
  // Creates a new editor instance.
  const editor = useCreateBlockNote({
    schema,
    initialContent: [
      {
        type: "paragraph",
        content: "Welcome to this demo!",
      },
      {
        type: "alert",
        content: "This is an example alert",
      },
      {
        type: "paragraph",
        content: "Click the '!' icon to change the alert type",
      },
      {
        type: "paragraph",
      },
    ],
  });

  // Renders the editor instance.
  return <BlockNoteView editor={editor} />;
}

import { BlockNoteSchema, defaultBlockSpecs } from "@blocknote/core";import "@blocknote/core/fonts/inter.css";import { BlockNoteView } from "@blocknote/mantine";import "@blocknote/mantine/style.css";import { useCreateBlockNote } from "@blocknote/react";import { createAlert } from "./Alert";// Our schema with block specs, which contain the configs and implementations for// blocks that we want our editor to use.const schema = BlockNoteSchema.create().extend({  blockSpecs: {    // Creates an instance of the Alert block and adds it to the schema.    alert: createAlert(),  },});export default function App() {  // Creates a new editor instance.  const editor = useCreateBlockNote({    schema,    initialContent: [      {        type: "paragraph",        content: "Welcome to this demo!",      },      {        type: "alert",        content: "This is an example alert",      },      {        type: "paragraph",        content: "Click the '!' icon to change the alert type",      },      {        type: "paragraph",      },    ],  });  // Renders the editor instance.  return <BlockNoteView editor={editor} />;}

.alert {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-grow: 1;
  border-radius: 4px;
  min-height: 48px;
  padding: 4px;
}

.alert[data-alert-type="warning"] {
  background-color: #fff6e6;
}

.alert[data-alert-type="error"] {
  background-color: #ffe6e6;
}

.alert[data-alert-type="info"] {
  background-color: #e6ebff;
}

.alert[data-alert-type="success"] {
  background-color: #e6ffe6;
}

[data-color-scheme="dark"] .alert[data-alert-type="warning"] {
  background-color: #805d20;
}

[data-color-scheme="dark"] .alert[data-alert-type="error"] {
  background-color: #802020;
}

[data-color-scheme="dark"] .alert[data-alert-type="info"] {
  background-color: #203380;
}

[data-color-scheme="dark"] .alert[data-alert-type="success"] {
  background-color: #208020;
}

.alert-icon-wrapper {
  border-radius: 16px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-left: 12px;
  margin-right: 12px;
  height: 18px;
  width: 18px;
  user-select: none;
  cursor: pointer;
}

.alert-icon[data-alert-icon-type="warning"] {
  color: #e69819;
}

.alert-icon[data-alert-icon-type="error"] {
  color: #d80d0d;
}

.alert-icon[data-alert-icon-type="info"] {
  color: #507aff;
}

.alert-icon[data-alert-icon-type="success"] {
  color: #0bc10b;
}

.inline-content {
  flex-grow: 1;
}

.alert {  display: flex;  justify-content: center;  align-items: center;  flex-grow: 1;  border-radius: 4px;  min-height: 48px;  padding: 4px;}.alert[data-alert-type="warning"] {  background-color: #fff6e6;}.alert[data-alert-type="error"] {  background-color: #ffe6e6;}.alert[data-alert-type="info"] {  background-color: #e6ebff;}.alert[data-alert-type="success"] {  background-color: #e6ffe6;}[data-color-scheme="dark"] .alert[data-alert-type="warning"] {  background-color: #805d20;}[data-color-scheme="dark"] .alert[data-alert-type="error"] {  background-color: #802020;}[data-color-scheme="dark"] .alert[data-alert-type="info"] {  background-color: #203380;}[data-color-scheme="dark"] .alert[data-alert-type="success"] {  background-color: #208020;}.alert-icon-wrapper {  border-radius: 16px;  display: flex;  justify-content: center;  align-items: center;  margin-left: 12px;  margin-right: 12px;  height: 18px;  width: 18px;  user-select: none;  cursor: pointer;}.alert-icon[data-alert-icon-type="warning"] {  color: #e69819;}.alert-icon[data-alert-icon-type="error"] {  color: #d80d0d;}.alert-icon[data-alert-icon-type="info"] {  color: #507aff;}.alert-icon[data-alert-icon-type="success"] {  color: #0bc10b;}.inline-content {  flex-grow: 1;}

import { defaultProps } from "@blocknote/core"; import { createReactBlockSpec } from "@blocknote/react"; import { Menu } from "@mantine/core"; import { MdCancel, MdCheckCircle, MdError, MdInfo } from "react-icons/md"; import "./styles.css"; // The types of alerts that users can choose from. export const alertTypes = [ { title: "Warning", value: "warning", icon: MdError, color: "#e69819", backgroundColor: { light: "#fff6e6", dark: "#805d20", }, }, { title: "Error", value: "error", icon: MdCancel, color: "#d80d0d", backgroundColor: { light: "#ffe6e6", dark: "#802020", }, }, { title: "Info", value: "info", icon: MdInfo, color: "#507aff", backgroundColor: { light: "#e6ebff", dark: "#203380", }, }, { title: "Success", value: "success", icon: MdCheckCircle, color: "#0bc10b", backgroundColor: { light: "#e6ffe6", dark: "#208020", }, }, ] as const; // The Alert block. export const createAlert = createReactBlockSpec( { type: "alert", propSchema: { textAlignment: defaultProps.textAlignment, textColor: defaultProps.textColor, type: { default: "warning", values: ["warning", "error", "info", "success"], }, }, content: "inline", }, { render: (props) => { const alertType = alertTypes.find( (a) => a.value === props.block.props.type, )!; const Icon = alertType.icon; return ( <div className={"alert"} data-alert-type={props.block.props.type}> {/*Icon which opens a menu to choose the Alert type*/} <Menu withinPortal={false}> <Menu.Target> <div className={"alert-icon-wrapper"} contentEditable={false}> <Icon className={"alert-icon"} data-alert-icon-type={props.block.props.type} size={32} /> </div> </Menu.Target> {/*Dropdown to change the Alert type*/} <Menu.Dropdown> <Menu.Label>Alert Type</Menu.Label> <Menu.Divider /> {alertTypes.map((type) => { const ItemIcon = type.icon; return ( <Menu.Item key={type.value} leftSection={ <ItemIcon className={"alert-icon"} data-alert-icon-type={type.value} /> } onClick={() => props.editor.updateBlock(props.block, { type: "alert", props: { type: type.value }, }) } > {type.title} </Menu.Item> ); })} </Menu.Dropdown> </Menu> {/*Rich text field for user to type in*/} <div className={"inline-content"} ref={props.contentRef} /> </div> ); }, }, );

Alert Block

Learn

Collaborate

Community

Legal

Theme