Messagebar Vue Component
- Messagebar Components
 - Messagebar Properties
 - Messagebar Events
 - Messagebar Slots
 - Messagebar v-model
 - Examples
 
Messagebar Vue component represents Framework7's Messagebar component.
Messagebar Components
There are following components included:
f7-messagebar- main messagebar elementf7-messagebar-sheet- messagebar sheet elementf7-messagebar-sheet-image- messagebar sheet image itemf7-messagebar-sheet-item- messagebar sheet itemf7-messagebar-attachments- messagebar attachments elementf7-messagebar-attachment- single messagebar attachment element

Messagebar Properties
| Prop | Type | Default | Description | 
|---|---|---|---|
| <f7-messagebar> properties | |||
| init | boolean | true | Initializes Messagebar | 
| name | string | Textarea "name" attribute | |
| textarea-id | string number  | Textarea "id" attribute | |
| placeholder | string | Message | Textarea placeholder text | 
| value | string number  | Textarea value | |
| readonly | boolean | false | Sets "readonly" textarea attribute | 
| disabled | boolean | false | Sets "disbled" textarea attribute | 
| send-link | string | Enables Send link and specifies its text. This property will be ignored in case you use send-link slot | |
| max-height | number | Defines resizable textarea max height | |
| resizable | boolean | true | Enables resizable textarea | 
| sheet-visible | boolean | false | Makes messagebar sheet visible/active | 
| attachments-visible | boolean | false | Makes messagebar attachments visible/active | 
| resize-page | boolean | true | When enabled, it will resize messages page when messagebar textarea size changed | 
| <f7-messagebar-sheet-image> properties | |||
| image | string | Sheet image URL | |
| checked | boolean | false | Indicates whether this sheet image-item is checked or not | 
| <f7-messagebar-attachment> properties | |||
| image | string | Attachment image URL | |
| deletable | boolean | true | Defines whether the attachment is deletable or not. In case of deletable the additional delete button will be rendered | 
Messagebar Events
| Event | Arguments | Description | 
|---|---|---|
| <f7-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" | 
| <f7-messagebar-sheet-image> events | ||
| change | (event) | Event will be triggered on sheet item checkbox change | 
| <f7-messagebar-attachment> events | ||
| attachment:click | (event) | Event will be triggered on attachment click | 
| attachment:delete | (event) | Event will be triggered on attachment delete button click | 
Messagebar Slots
Messagebar Vue component has additional slots for custom elements:
default- element will be inserted in the end of<div class="toolbar-inner">. elementbefore-area- element will be inserted right before textarea. Messagebar attachments go hereafter-area- element will be inserted right after textareasend-link- element will be inserted inside of send linkbefore-inner- element will be inserted right before<div class="toolbar-inner">. elementafter-inner- element will be inserted right after<div class="toolbar-inner">. element. Messagebar sheet goes hereinner-start- element will be inserted in the beginning of<div class="toolbar-inner">. elementinner-end- element will be inserted in the end of<div class="toolbar-inner">. element. Same asdefaultslot
<f7-messagebar placeholder="Message" @submit="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>
  <f7-icon ios="f7:arrow_up_fill" aurora="f7:arrow_up_fill" md="material:send" slot="send-link"></f7-icon>
  <div>Default slot</div>
</f7-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>
Messagebar v-model
f7-messagebar component supports v-model on value prop:
<template>
  ...
  <f7-messagebar
    v-model:value="messageText"
  />
  ...
</template>
<script>
  export default {
    data() {
      messageText: '',
    },
    ...
  };
</script>
Examples
Here is how the full example of Messages page where it can be used together with Messages:
<template>
<f7-page>
  <f7-navbar title="Messages" />
  <f7-messagebar
    ref="messagebar"
    v-model:value="messageText"
    :placeholder="placeholder"
    :attachments-visible="attachmentsVisible"
    :sheet-visible="sheetVisible"
  >
    <template #inner-start>
      <f7-link
        icon-ios="f7:camera_fill"
        icon-aurora="f7:camera_fill"
        icon-md="material:camera_alt"
        @click="sheetVisible = !sheetVisible"
      />
    </template>
    <template #inner-end>
      <f7-link
        icon-ios="f7:arrow_up_circle_fill"
        icon-aurora="f7:arrow_up_circle_fill"
        icon-md="material:send"
        @click="sendMessage"
      />
    </template>
    <f7-messagebar-attachments>
      <f7-messagebar-attachment
        v-for="(image, index) in attachments"
        :key="index"
        :image="image"
        @attachment:delete="deleteAttachment(image)"
      ></f7-messagebar-attachment>
    </f7-messagebar-attachments>
    <f7-messagebar-sheet>
      <f7-messagebar-sheet-image
        v-for="(image, index) in images"
        :key="index"
        :image="image"
        :checked="attachments.indexOf(image) >= 0"
        @change="handleAttachment"
      ></f7-messagebar-sheet-image>
    </f7-messagebar-sheet>
  </f7-messagebar>
  <f7-messages>
    <f7-messages-title><b>Sunday, Feb 9,</b> 12:58</f7-messages-title>
    <f7-message
      v-for="(message, index) in messagesData"
      :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)"
    >
      <template #text>
        <!-- eslint-disable-next-line -->
        <span v-if="message.text" v-html="message.text"></span>
      </template>
    </f7-message>
    <f7-message
      v-if="typingMessage"
      type="received"
      :typing="true"
      :first="true"
      :last="true"
      :tail="true"
      :header="`${typingMessage.name} is typing`"
      :avatar="typingMessage.avatar"
    ></f7-message>
  </f7-messages>
</f7-page>
</template>
<script>
import { f7, f7ready } from 'framework7-vue';
import $ from 'dom7';
export default {
  data() {
    return {
      attachments: [],
      sheetVisible: false,
      typingMessage: null,
      messageText: '',
      messagesData: [
        {
          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',
        },
      ],
      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',
      ],
      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',
        },
      ],
      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!!!',
      ],
      responseInProgress: false,
    };
  },
  computed: {
    attachmentsVisible() {
      const self = this;
      return self.attachments.length > 0;
    },
    placeholder() {
      const self = this;
      return self.attachments.length > 0 ? 'Add comment or Send' : 'Message';
    },
  },
  mounted() {
    const self = this;
    f7ready(() => {
      self.messagebar = f7.messagebar.get(self.$refs.messagebar.$el);
    });
  },
  methods: {
    isFirstMessage(message, index) {
      const self = this;
      const previousMessage = self.messagesData[index - 1];
      if (message.isTitle) return false;
      if (
        !previousMessage ||
        previousMessage.type !== message.type ||
        previousMessage.name !== message.name
      )
        return true;
      return false;
    },
    isLastMessage(message, index) {
      const self = this;
      const nextMessage = self.messagesData[index + 1];
      if (message.isTitle) return false;
      if (!nextMessage || nextMessage.type !== message.type || nextMessage.name !== message.name)
        return true;
      return false;
    },
    isTailMessage(message, index) {
      const self = this;
      const nextMessage = self.messagesData[index + 1];
      if (message.isTitle) return false;
      if (!nextMessage || nextMessage.type !== message.type || nextMessage.name !== message.name)
        return true;
      return false;
    },
    deleteAttachment(image) {
      const self = this;
      const index = self.attachments.indexOf(image);
      self.attachments.splice(index, 1)[0]; // eslint-disable-line
    },
    handleAttachment(e) {
      const self = this;
      const index = $(e.target).parents('label.checkbox').index();
      const image = self.images[index];
      if (e.target.checked) {
        // Add to attachments
        self.attachments.unshift(image);
      } else {
        // Remove from attachments
        self.attachments.splice(self.attachments.indexOf(image), 1);
      }
    },
    sendMessage() {
      const self = this;
      const text = self.messageText.replace(/\n/g, '<br>').trim();
      const messagesToSend = [];
      self.attachments.forEach((attachment) => {
        messagesToSend.push({
          image: attachment,
        });
      });
      if (text.length) {
        messagesToSend.push({
          text,
        });
      }
      if (messagesToSend.length === 0) {
        return;
      }
      // Reset attachments
      self.attachments = [];
      // Hide sheet
      self.sheetVisible = false;
      // Clear area
      self.messageText = '';
      // Focus area
      if (text.length) self.messagebar.focus();
      // Send message
      self.messagesData.push(...messagesToSend);
      // Mock response
      if (self.responseInProgress) return;
      self.responseInProgress = true;
      setTimeout(() => {
        const answer = self.answers[Math.floor(Math.random() * self.answers.length)];
        const person = self.people[Math.floor(Math.random() * self.people.length)];
        self.typingMessage = {
          name: person.name,
          avatar: person.avatar,
        };
        setTimeout(() => {
          self.messagesData.push({
            text: answer,
            type: 'received',
            name: person.name,
            avatar: person.avatar,
          });
          self.typingMessage = null;
          self.responseInProgress = false;
        }, 4000);
      }, 1000);
    },
  },
};
</script>



