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telvin-vue2-dropzone

v2.3.12

Published

A wrapper around Dropzone.js for Vue 2

Downloads

5

Readme

vue-dropzone

A Vue component for file uploads, powered by Dropzone.js. Check out the demo.

Install

// For Vue.js 2.0+
npm install vue2-dropzone@^2.0.0

You'll also need to load either the Material Icon or FontAwesome icon kits depending on which style of icon you'd like.

    <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
    <link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">

Usage

  1. Import the module (import Dropzone from 'vue2-dropzone')
  2. Register it as a component as you would any other Vue component
  3. Use it within your template

Example

<template>
  <div id="app">
    <p>Welcome to your Vue.js app!</p>

    <dropzone id="myVueDropzone" url="https://httpbin.org/post" v-on:vdropzone-success="showSuccess">
        <!-- Optional parameters if any! -->
        <input type="hidden" name="token" value="xxx">
    </dropzone>

  </div>
</template>

<script>
  import Dropzone from 'vue2-dropzone'

  export default {
    name: 'MainApp',
    components: {
      Dropzone
    },
    methods: {
      'showSuccess': function (file) {
        console.log('A file was successfully uploaded')
      }
    }
  }
</script>

Props

Many of these props are inherited from dropzone configuration so see their doco for further details.

Important : - If you are using following options as props (attributes) to component then use dash-seperated names of props. E.g. paramName becomes :param-name="", showRemoveLink becomes :show-remove-link="". - If you are passing props using dropzoneOptions object then, use prop names same as given in below table. E.g. :dropzone-options="customOptionsObject". customOptionsObject is defined in data() with following props names.

| Prop Name | Type | Description | |----------|------|--------------| | id | String | A string by which to identify the component, can be anything. Required| | url | String | Url to post the upload to. Required| | paramName | String | The name of the file param that gets transferred. Defaults to file. NOTE: If you have the option uploadMultiple set to true, then Dropzone will append [] to the name.| | clickable | Boolean, String | Whether the dropzone area is clickable, if false then users can only drag items on to the area. Can also accept a CSS selector of an element that will open the file dialog when clicked. | | acceptedFileTypes | String | A comma separated string of accepted file types eg 'image/*,application/pdf,.psd' .| | thumbnailHeight | Number | The height of thumbnails in pixels.| | thumbnailWidth | Number | The width of thumbnails in pixels.| | showRemoveLink | Boolean | Whether the Remove link is shown on items.| | maxFileSizeInMB | Number |The maximum file size for a single upload in MB.| | maxNumberOfFiles | Number | The maximum number of files to allow the user to upload.| | autoProcessQueue | Boolean | Whether the files are automatically uploaded or not.| | useFontAwesome | Boolean | Whether to use Font Awesome instead of Material Icon.| | headers | Object | If you want to add additional headers.| | language | Object | Use dropzone's dict properties to change texts. | | useCustomDropzoneOptions | Boolean | If you want to define your own dropzone config set this to true and define a dropzoneOptions.| | dropzoneOptions | Object | A custom set of rules to define your dropzone object, use anything available in the dropzone config.| | preview-template | Function | A custom preview template which will be passed as function. See following Note | | resizeWidth | Number | If set, images will be resized to these dimensions before being uploaded. If only one, resizeWidth or resizeHeight is provided, the original aspect ratio of the file will be preserved. Default : null | | resizeHeight | Number | Height of image to be resized. Default : null | | resizeMimeType | String | The mime type of the resized image (before it gets uploaded to the server). If null the original mime type will be used. To force jpeg, for example, use image/jpeg. Default : null | | resizeQuality | Number | The quality of the resized images. Default : null | | resizeMethod | String | How the images should be scaled down in case both, resizeWidth and resizeHeight are provided. Can be either contain or crop. Default : 'contain' | | duplicateCheck | Boolean | Whether to check for duplicate file by file name. if true duplicate-file event will be emitted. Default : 'false' | | timeout | Number | The timeout for the XHR requests in milliseconds. Default:30000| | method | String | The HTTP method used to submit form file data. Default:post| | capture | String | If null, no capture type will be specified If camera, mobile devices will skip the file selection and choose camera If microphone, mobile devices will skip the file selection and choose the microphone If camcorder, mobile devices will skip the file selection and choose the camera in video mode On apple devices multiple must be set to false. AcceptedFiles may need to be set to an appropriate mime type (e.g. "image/", "audio/", or "video/*"). Default:null | | hiddenInputContainer | String | Element the hidden input field will be appended to. This might be important in case you use frameworks to switch the content of your page. Default:body| | confirm | Function | A function for overriding native confirmation dialog box of browser. Parameters: question, accepted, rejected|

Custom Dropzone preview template

NOTE : Props like thumbnailWidth,thumbnailHeight, useFontAwesome will not work when you override the dropzone preview. No worry you can refer demo file to achieve same. :) Don't forgot to add your styles in <style>

Custom Dropzone Template Demo File

Methods

Methods you can call on the component.

| Method | Description | |------------|-------------| | setOption(optionname, value) | Sets the value of one of the dropzone options after initialisation. Handy if you need to pass through a token after the component has initialised. | | removeAllFiles() | Empties the dropzone area.| | processQueue() | Uploads the files, required if autoProcessQueue is set to false.| | removeFile(file) | Removes a file from the dropzone area.| | manuallyAddFile(file, fileUrl, callback, crossOrigin) | Manually adds a file to the dropzone area. See the dropzone doco for more information. | | getAcceptedFiles() | Returns array of valid/ accepted files. | | getRejectedFiles() | Returns array of Invalid/ rejected files. | | getUploadingFiles() | Returns array of uploading files. | | getQueuedFiles() | Returns array of uploading files. |

Using Methods

Methods can be called from your parent component by making use of the special tag "ref".

When you initialize the component add a unique ID to the dropzone element using the ref tag, like this

<dropzone ref="myUniqueID"></dropzone>

Then from your parent Vue instance, you can call the methods by using the following:

vm.$refs.myUniqueID.processQueue()
//vm refers to your current instance

Events

Events emitted by the component to the parent.

| Event Name | Description | |------------|-------------| | vdropzone-file-added(file) | File added to the dropzone.| | vdropzone-files-added(file) | Files added to the dropzone.| | vdropzone-file-added-manually(file) | Manually added file to the dropzone | | vdropzone-success(file, response) | File successfully uploaded.| | vdropzone-error(file) | File uploaded encountered an error.| | vdropzone-removed-file(file, error, xhr) | A file was removed from the dropzone.| | vdropzone-sending(file, xhr, formData) | Modify the request and add addtional parameters to request before sending.| | vdropzone-success-multiple(files, response) | Fired if the uploadMultiple option is true.| | vdropzone-sending-multiple(files, xhr, formData) | Fired if the uploadMultiple option is true.| | vdropzone-queue-complete(file, xhr, formData) | Fired when queue has been completely processed/ uploaded.| | vdropzone-total-upload-progress(totaluploadprogress, totalBytes, totalBytesSent) | This event can be used to show the overall upload progress of all files. Note : totaluploadprogress (0-100)| | vdropzone-mounted() | Fired when dropzone component is mounted. | | duplicate-file(file) | Fired when duplicateCheck is enabled. |

Listening to other Dropzone events

If you've referenced your tag with a ref property/tag as described in 'Using Methods', you can then access the Dropzone instance as well. This is useful if, for example, you want to add event listeners that have not been pre-configured (see below) From your parent Vue instance:

mounted () {
  this.$refs.dropzone.dropzone.on('addedfile', function (file) {
    if (this.files.length > 1) {
      this.removeFile(this.files[0])
    }
  })
  this.$refs.dropzone.dropzone.on('maxfilesexceeded', function (file) {
    this.removeFile(file)
  })
}

Development

# install dependencies
npm install

# serve example at localhost:8080
npm run dev

# build any changes made
npm run build