Messagebar React Component

Messagebar React component represents Framework7's Messagebar component.

Messagebar Components

There are following components included:

Messagebar Properties

PropTypeDefaultDescription
<Messagebar> properties
initbooleantrueInitializes Messagebar
namestringTextarea "name" attribute
textareaIdstring
number
Textarea "id" attribute
placeholderstringMessageTextarea placeholder text
valuestring
number
Textarea value
readonlybooleanfalseSets "readonly" textarea attribute
disabledbooleanfalseSets "disabled" textarea attribute
sendLinkstringEnables Send link and specifies its text. This property will be ignored in case you use send-link slot
maxHeightnumberDefines resizable textarea max height
resizablebooleantrueEnables resizable textarea
sheetVisiblebooleanfalseMakes messagebar sheet visible/active
attachmentsVisiblebooleanfalseMakes messagebar attachments visible/active
resizePagebooleantrueWhen enabled, it will resize messages page when messagebar textarea size changed
<MessagebarSheetImage> properties
imagestringSheet image URL
checkedbooleanfalseIndicates whether this sheet image-item is checked or not
<MessagebarAttachment> properties
imagestringAttachment image URL
deletablebooleantrueDefines whether the attachment is deletable or not. In case of deletable the additional delete button will be rendered

Messagebar Events

EventArgumentsDescription
<Messagebar> events
change(event)Event will be triggered when "change" event occurs on messagebar textarea element
input(event)Event will be triggered when "input" event occurs on messagebar textarea element
focus(event)Event will be triggered when "focus" event occurs on messagebar textarea element
blur(event)Event will be triggered when "blur" event occurs on messagebar textarea element
submit
send
(value, clear)Event will be triggered when user clicks on messagebar "send link"
<MessagebarSheetImage> events
change(event)Event will be triggered on sheet item checkbox change
<MessagebarAttachment> events
attachmentClick(event)Event will be triggered on attachment click
attachmentDelete(event)Event will be triggered on attachment delete button click

Messagebar Slots

Messagebar React component has additional slots for custom elements:

<Messagebar placeholder="Message" onSubmit="this.onSubmit">
  <div slot="before-inner">Before inner</div>
  <div slot="after-inner">After inner</div>
  <div slot="before-area">Before textarea</div>
  <div slot="after-area">After textarea</div>
  <Icon ios="f7:arrow_up_fill" md="material:send" slot="send-link"></Icon>
  <div>Default slot</div>
</Messagebar>

Renders to:

<div class="toolbar messagebar">
  <div>Before inner</div>
  <div class="toolbar-inner">
    <div class="messagebar-area">
      <div>Before textarea</div>
      <textarea placeholder="Message"></textarea>
      <div>After textarea</div>
    </div>
    <a href="#" class="link"><i class="icon f7-icons">arrow_up_fill</i></a>
    <div>Default slot</div>
  </div>
  <div>After inner</div>
</div>

Examples

Here is how the full example of Messages page where it can be used together with Messages:

messages.jsx
import React, { useEffect, useRef, useState } from 'react';
import {
  Navbar,
  Page,
  Messages,
  MessagesTitle,
  Message,
  Messagebar,
  Link,
  MessagebarAttachments,
  MessagebarAttachment,
  MessagebarSheet,
  MessagebarSheetImage,
  f7ready,
  f7,
} from 'framework7-react';

export default () => {
  const images = [
    'https://cdn.framework7.io/placeholder/cats-300x300-1.jpg',
    'https://cdn.framework7.io/placeholder/cats-200x300-2.jpg',
    'https://cdn.framework7.io/placeholder/cats-400x300-3.jpg',
    'https://cdn.framework7.io/placeholder/cats-300x150-4.jpg',
    'https://cdn.framework7.io/placeholder/cats-150x300-5.jpg',
    'https://cdn.framework7.io/placeholder/cats-300x300-6.jpg',
    'https://cdn.framework7.io/placeholder/cats-300x300-7.jpg',
    'https://cdn.framework7.io/placeholder/cats-200x300-8.jpg',
    'https://cdn.framework7.io/placeholder/cats-400x300-9.jpg',
    'https://cdn.framework7.io/placeholder/cats-300x150-10.jpg',
  ];
  const people = [
    {
      name: 'Kate Johnson',
      avatar: 'https://cdn.framework7.io/placeholder/people-100x100-9.jpg',
    },
    {
      name: 'Blue Ninja',
      avatar: 'https://cdn.framework7.io/placeholder/people-100x100-7.jpg',
    },
  ];
  const answers = [
    'Yes!',
    'No',
    'Hm...',
    'I am not sure',
    'And what about you?',
    'May be ;)',
    'Lorem ipsum dolor sit amet, consectetur',
    'What?',
    'Are you sure?',
    'Of course',
    'Need to think about it',
    'Amazing!!!',
  ];
  const [attachments, setAttachments] = useState([]);
  const [sheetVisible, setSheetVisible] = useState(false);
  const [typingMessage, setTypingMessage] = useState(null);
  const [messageText, setMessageText] = useState('');
  const [messagesData, setMessagesData] = useState([
    {
      type: 'sent',
      text: 'Hi, Kate',
    },
    {
      type: 'sent',
      text: 'How are you?',
    },
    {
      name: 'Kate',
      type: 'received',
      text: 'Hi, I am good!',
      avatar: 'https://cdn.framework7.io/placeholder/people-100x100-9.jpg',
    },
    {
      name: 'Blue Ninja',
      type: 'received',
      text: 'Hi there, I am also fine, thanks! And how are you?',
      avatar: 'https://cdn.framework7.io/placeholder/people-100x100-7.jpg',
    },
    {
      type: 'sent',
      text: 'Hey, Blue Ninja! Glad to see you ;)',
    },
    {
      type: 'sent',
      text: 'Hey, look, cutest kitten ever!',
    },
    {
      type: 'sent',
      image: 'https://cdn.framework7.io/placeholder/cats-200x260-4.jpg',
    },
    {
      name: 'Kate',
      type: 'received',
      text: 'Nice!',
      avatar: 'https://cdn.framework7.io/placeholder/people-100x100-9.jpg',
    },
    {
      name: 'Kate',
      type: 'received',
      text: 'Like it very much!',
      avatar: 'https://cdn.framework7.io/placeholder/people-100x100-9.jpg',
    },
    {
      name: 'Blue Ninja',
      type: 'received',
      text: 'Awesome!',
      avatar: 'https://cdn.framework7.io/placeholder/people-100x100-7.jpg',
    },
  ]);

  const responseInProgress = useRef(false);
  const messagebar = useRef(null);

  const attachmentsVisible = () => {
    return attachments.length > 0;
  };
  const placeholder = () => {
    return attachments.length > 0 ? 'Add comment or Send' : 'Message';
  };
  useEffect(() => {
    f7ready(() => {
      messagebar.current = f7.messagebar.get('.messagebar');
    });
  });
  const isFirstMessage = (message, index) => {
    const previousMessage = messagesData[index - 1];
    if (message.isTitle) return false;
    if (
      !previousMessage ||
      previousMessage.type !== message.type ||
      previousMessage.name !== message.name
    )
      return true;
    return false;
  };
  const isLastMessage = (message, index) => {
    const nextMessage = messagesData[index + 1];
    if (message.isTitle) return false;
    if (!nextMessage || nextMessage.type !== message.type || nextMessage.name !== message.name)
      return true;
    return false;
  };
  const isTailMessage = (message, index) => {
    const nextMessage = messagesData[index + 1];
    if (message.isTitle) return false;
    if (!nextMessage || nextMessage.type !== message.type || nextMessage.name !== message.name)
      return true;
    return false;
  };
  const deleteAttachment = (image) => {
    const index = attachments.indexOf(image);
    attachments.splice(index, 1);
    setAttachments([...attachments]);
  };
  const handleAttachment = (e) => {
    const index = f7.$(e.target).parents('label.checkbox').index();
    const image = images[index];
    if (e.target.checked) {
      // Add to attachments
      attachments.unshift(image);
    } else {
      // Remove from attachments
      attachments.splice(attachments.indexOf(image), 1);
    }
    setAttachments([...attachments]);
  };
  const sendMessage = () => {
    const text = messageText.replace(/\n/g, '<br>').trim();
    const messagesToSend = [];
    attachments.forEach((attachment) => {
      messagesToSend.push({
        image: attachment,
      });
    });
    if (text.length) {
      messagesToSend.push({
        text,
      });
    }
    if (messagesToSend.length === 0) {
      return;
    }
    setAttachments([]);
    setSheetVisible(false);
    setMessagesData([...messagesData, ...messagesToSend]);
    setMessageText('');

    // Focus area
    if (text.length) messagebar.current.focus();

    // Mock response
    if (responseInProgress.current) return;

    responseInProgress.current = true;

    setTimeout(() => {
      const answer = answers[Math.floor(Math.random() * answers.length)];
      const person = people[Math.floor(Math.random() * people.length)];
      setTypingMessage({
        name: person.name,
        avatar: person.avatar,
      });
      setTimeout(() => {
        setTypingMessage(null);
        setMessagesData([
          ...messagesData,
          ...messagesToSend,
          {
            text: answer,
            type: 'received',
            name: person.name,
            avatar: person.avatar,
          },
        ]);
        responseInProgress.current = false;
      }, 4000);
    }, 1000);
  };

  return (
    <Page>
      <Navbar title="Messages"></Navbar>

      <Messagebar
        placeholder={placeholder()}
        attachmentsVisible={attachmentsVisible()}
        sheetVisible={sheetVisible}
        value={messageText}
        onInput={(e) => setMessageText(e.target.value)}
      >
        <Link
          iconIos="f7:camera_fill"
          iconMd="material:camera_alt"
          slot="inner-start"
          onClick={() => {
            setSheetVisible(!sheetVisible);
          }}
        />
        <Link
          iconIos="f7:arrow_up_circle_fill"
          iconMd="material:send"
          slot="inner-end"
          onClick={sendMessage}
        />
        <MessagebarAttachments>
          {attachments.map((image, index) => (
            <MessagebarAttachment
              key={index}
              image={image}
              onAttachmentDelete={() => deleteAttachment(image)}
            />
          ))}
        </MessagebarAttachments>
        <MessagebarSheet>
          {images.map((image, index) => (
            <MessagebarSheetImage
              key={index}
              image={image}
              checked={attachments.indexOf(image) >= 0}
              onChange={handleAttachment}
            />
          ))}
        </MessagebarSheet>
      </Messagebar>

      <Messages>
        <MessagesTitle>
          <b>Sunday, Feb 9,</b> 12:58
        </MessagesTitle>

        {messagesData.map((message, index) => (
          <Message
            key={index}
            type={message.type}
            image={message.image}
            name={message.name}
            avatar={message.avatar}
            first={isFirstMessage(message, index)}
            last={isLastMessage(message, index)}
            tail={isTailMessage(message, index)}
          >
            {message.text && (
              <span slot="text" dangerouslySetInnerHTML={{ __html: message.text }} />
            )}
          </Message>
        ))}
        {typingMessage && (
          <Message
            type="received"
            typing={true}
            first={true}
            last={true}
            tail={true}
            header={`${typingMessage.name} is typing`}
            avatar={typingMessage.avatar}
          />
        )}
      </Messages>
    </Page>
  );
};