Message Composer

Overview

MessageComposer is a Component that enables users to write and send a variety of messages, including text, image, video, and custom messages.

Features such as Live Reaction, Attachments, and Message Editing are also supported by it.

Usage

Integration

The following code snippet illustrates how you can directly incorporate the CometChatMessageComposer component into your app.

App.tsx

import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code
return <CometChatMessageComposer group={group}></CometChatMessageComposer>;

Actions

Actions dictate how a component functions. They are divided into two types: Predefined and User-defined. You can override either type, allowing you to tailor the behavior of the component to fit your specific needs.

onSendButtonPress

The onSendButtonPress event gets activated when the send message button is clicked. It has a predefined function of sending messages entered in the composer EditText. However, you can overide this action with the following code snippet.

App.tsx

import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code
const onSendButtonPressHandler = (message: CometChat.BaseMessage) => {
  //code
};
return (
  <CometChatMessageComposer
    group={group}
    onSendButtonPress={onSendButtonPressHandler}
  ></CometChatMessageComposer>
);

onError

This action doesn't change the behavior of the component but rather listens for any errors that occur in the CometChatMessageComposer component.

App.tsx

import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code
const onError = (error: CometChat.CometChatException) => {
  //handle error
};
return (
  <CometChatMessageComposer
    group={group}
    onError={onError}
  ></CometChatMessageComposer>
);

onTextChange

Function triggered whenever the message input's text value changes, enabling dynamic text handling.

App.tsx

import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code
const onTextChange = (text: string) => {
  //code
};
return (
  <CometChatMessageComposer
    group={group}
    onTextChange={onTextChange}
  ></CometChatMessageComposer>
);

---

Filters

MessageComposer component does not have any available filters.

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Events

Events are emitted by a Component. By using event you can extend existing functionality. Being global events, they can be applied in Multiple Locations and are capable of being Added or Removed.

The list of events emitted by the Messages component is as follows.

Event	Description
ccMessageSent	Triggers whenever a loggedIn user sends any message, it will have two states such as: inprogress, success & error
ccMessageEdited	Triggers whenever a loggedIn user edits any message from the list of messages. It will have two states such as: inprogress, success & error
ccMessageLiveReaction	Triggers whenever a loggedIn clicks on live reaction

Adding CometChatMessageEvents Listener's

JavaScript

import { CometChatUIEventHandler } from "@cometchat/chat-uikit-react-native";

CometChatUIEventHandler.addMessageListener("MESSAGE_LISTENER_ID", {
  ccMessageSent: (item) => {
    //code
  },
});

CometChatUIEventHandler.addMessageListener("MESSAGE_LISTENER_ID", {
  ccMessageEdited: (item) => {
    //code
  },
});

CometChatUIEventHandler.addMessageListener("MESSAGE_LISTENER_ID", {
  ccMessageLiveReaction: (item) => {
    //code
  },
});

---

Removing CometChatMessageEvents Listener's

JavaScript

import { CometChatUIEventHandler } from "@cometchat/chat-uikit-react-native";

CometChatUIEventHandler.removeMessageListener("MESSAGE_LISTENER_ID");

---

Customization

To fit your app's design requirements, you can customize the appearance of the MessageComposer component. We provide exposed methods that allow you to modify the experience and behavior according to your specific needs.

Style

Using Style you can customize the look and feel of the component in your app, These parameters typically control elements such as the color, size, shape, and fonts used within the component.

---

Functionality

These are a set of small functional customizations that allow you to fine-tune the overall experience of the component. With these, you can change text, set custom icons, and toggle the visibility of UI elements.

Below is a list of customizations along with corresponding code snippets

Property	Description	Code
user	Used to pass user object of which header specific details will be show	user={chatUser}
group	Used to pass group object of which header specific details will be shown	group={chatGroup}
placeHolderText	Used to set composer's placeholder text	placeHolderText="your custom placeholder text"
disableTypingEvents	Used to disable/enable typing events , default false	disableTypingEvents={true}
disableSoundForMessages	Used to toggle sound for outgoing messages	disableSoundForMessages={true}
initialComposertext	Used to set predefined text	text="Your custom text"
customSoundForMessage	Used to give custom sounds to outgoing messages	customSoundForMessage="your custom sound for messages"
hideVoiceRecordingButton	used to hide the voice recording option.	hideVoiceRecording={true}
disableMentions	Sets whether mentions in text should be disabled. Processes the text formatters If there are text formatters available and the disableMentions flag is set to true, it removes any formatters that are instances of CometChatMentionsFormatter.	disableMentions={true}

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Advanced

For advanced-level customization, you can set custom views to the component. This lets you tailor each aspect of the component to fit your exact needs and application aesthetics. You can create and define your views, layouts, and UI elements and then incorporate those into the component.

---

TextFormatters

Assigns the list of text formatters. If the provided list is not null, it sets the list. Otherwise, it assigns the default text formatters retrieved from the data source. To configure the existing Mentions look and feel check out CometChatMentionsFormatter

App.tsx

import {
  CometChatMessageComposer,
  CometChatTextFormatter,
  CometChatMentionsFormatter,
} from "@cometchat/chat-uikit-react-native";
import { CometChat } from "@cometchat/chat-sdk-react-native";
//code
const getTextFomatters = () => {
  const textFormatters: CometChatTextFormatter[] = [];
  const mentionsFormatter = new CometChatMentionsFormatter();
  mentionsFormatter.setMentionsStyle({
    textStyle: {
      color: "#D6409F",
    },
    selfTextStyle: {
      color: "#30A46C",
    },
  });
  textFormatters.push(mentionsFormatter);
  return textFormatters;
};
return (
  <CometChatMessageComposer
    group={group}
    textFormatters={getTextFomatters()}
  ></CometChatMessageComposer>
);

Example

AttachmentOptions

By using attachmentOptions, you can set a list of custom MessageComposerActions for the MessageComposer Component. This will override the existing list of MessageComposerActions.

App.tsx

import {
  CometChatMessageComposer,
  CometChatTextFormatter,
  CometChatMentionsFormatter,
} from "@cometchat/chat-uikit-react-native";
import { CometChat } from "@cometchat/chat-sdk-react-native";
//code
const getCustomAttachmentOptions = ({
  user,
  group,
  composerId,
}: {
  user?: CometChat.User;
  group?: CometChat.Group;
  composerId: Map<any, any>;
}): CometChatMessageComposerAction[] => {
  let attachmentOptions: CometChatMessageComposerAction[] = [];
  attachmentOptions.push({
    id: "location",
    icon: LocationIcon,
    title: "Share Location",
    style: { iconStyle: { tintColor: "grey" } },
    onPress: () => {
      //handleOnPress
    },
  });
  return attachmentOptions;
};
return (
  <CometChatMessageComposer
    group={group}
    attachmentOptions={getCustomAttachmentOptions()}
  ></CometChatMessageComposer>
);

Example

---

AuxiliaryButtonView

You can insert a custom view into the MessageComposer component to add additional functionality using the following method.

App.tsx

import { CometChat } from "@cometchat/chat-sdk-react-native";
import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code

const styles = StyleSheet.create({
  button: {
    height: 25,
    width: 25,
    borderRadius: 0,
    backgroundColor: "transparent",
  },
  image: {
    height: 23,
    width: 24,
    tintColor: "#7E57C2",
  },
});

const customAuxiliaryButtonView = ({
  user,
  group,
  composerId,
}: {
  user?: CometChat.User,
  group?: CometChat.Group,
  composerId: string | number,
}): JSX.Element => {
  return (
    <TouchableOpacity
      style={styles.button}
      onPress={() => {
        /* code */
      }}
    >
      <Image source={LocationIcon} style={styles.image} />
    </TouchableOpacity>
  );
};

return (
  <CometChatMessageComposer
    group={group}
    AuxiliaryButtonView={customAuxiliaryButtonView}
  ></CometChatMessageComposer>
);

Please note that the MessageComposer Component utilizes the AuxiliaryButton to provide sticker functionality. Overriding the AuxiliaryButton will subsequently replace the sticker functionality.

Example

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SendButtonView

You can set a custom view in place of the already existing send button view. Using the following method.

App.tsx

import { CometChat } from "@cometchat/chat-sdk-react-native";
import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code
const styles = StyleSheet.create({
  button: {
    height: 25,
    width: 25,
    borderRadius: 0,
    backgroundColor: "transparent",
  },
  image: {
    height: 23,
    width: 24,
    tintColor: "#7E57C2",
  },
});

const customSendButtonView = ({
  user,
  group,
  composerId,
}: {
  user?: CometChat.User,
  group?: CometChat.Group,
  composerId: string | number,
}): JSX.Element => {
  return (
    <TouchableOpacity
      style={styles.button}
      onPress={() => {
        /* code */
      }}
    >
      <Image source={SendButtonIcon} style={styles.image} />
    </TouchableOpacity>
  );
};

return (
  <CometChatMessageComposer
    group={group}
    SendButtonView={customSendButtonView}
  ></CometChatMessageComposer>
);

Example

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HeaderView

You can set custom headerView to the MessageComposer component using the following method

App.tsx

import { CometChat } from "@cometchat/chat-sdk-react-native";
import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code
const viewStyle: StyleProp<ViewStyle> = {
  flexDirection: "row",
  alignItems: "flex-start",
  justifyContent: "center",
  padding: 5,
  borderColor: "black",
  borderWidth: 1,
  backgroundColor: "white",
  borderRadius: 10,
  margin: 2,
  marginLeft: 7.4,
  height: 30,
  width: "95.5%",
};

const customHeaderView = ({
  user,
  group,
}: {
  user?: CometChat.User,
  group?: CometChat.Group,
}) => {
  return (
    <View style={viewStyle}>
      <Text style={{ color: "#6851D6", fontWeight: "bold" }}>Chat Bot</Text>
    </View>
  );
};

return (
  <CometChatMessageComposer
    group={group}
    HeaderView={customHeaderView}
  ></CometChatMessageComposer>
);

Example