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@filerobot/thumbnail-generator

v3.74.1

Published

Filerobot plugin that generates small previews of images to show on your upload UI.

Downloads

19,518

Readme

@filerobot/thumbnail-generator

Plugins Website Version Scaleflex team License CodeSandbox

A helper plugin used in generating thumbnails for files to be shown in Filerobot Media Asset Widget.

Usage

NPM

npm install --save @filerobot/thumbnail-generator

YArn

yarn add @filerobot/thumbnail-generator

then

import ThumbnailGenerator from '@filerobot/thumbnail-generator'
...
...
...
filerobot.use(ThumbnailGenerator, propertiesObject)

CDN

The plugin from CDN is found inside Filerobot global object Filerobot.ThumbnailGenerator

const ThumbnailGenerator = window.Filerobot.ThumbnailGenerator
...
...
...
filerobot.use(ThumbnailGenerator, propertiesObject)

If you are using @filerobot/explorer pluign you don't need to manually import this plugin as it is being imported automatically there and the default id Explorer:thumbnail-generator Unless the Explorer id is changed.

Properties

id

Type: object.

Default: 'ThumbnailGenerator'

An unique identifier for the plugin to be identified between the other plugins through it.

thumbnailWidth

Type: number.

Default: 200

The width of the generated thumbnail to be, if it is not provided the default width would be used.

thumbnailHeight

Type: number.

Default: 170

The height of the generated thumbnail to be, if it is not provided the default height would be used.

waitForThumbnailsBeforeUpload

Type: boolean.

Default: false

Delays the start of uploading process till the thumbnails for files selected to be uploaded are generated.

lazy

Type: boolean.

Default: false

Starts the thumbnail generating process manually through the below events not automatically.

Events

The plugin emits different events that you could subscribe to or add your handler to be called with the provided arguments passed while emitting/firing the event, the events are listed below with examples show the parameters for handler:

Emitters

thumbnail:all-generated

Emitted when all the thumbnails are generated.

params: No params returned.

example

filerobot.on('thumbnail:all-generated', () => {
  console.log('all thumbnails generated')
})

thumbnail:generated

Emitted when a file's thumbnail is generated.

params:

  • file: The file object whom thumbnail is generated.
  • preview: The generated thumbnail image local url.

example

filerobot.on('thumbnail:generated', (file, previewUrl) => {
  console.log('[Thumbnail-generator]: File's thumbnail is generated', file)
  const img = document.createElement('img')
  img.src = previewUrl
  img.width = 111
  document.body.appendChild(img)
})

thumbnail:error

Emitted when a file's thumbnail generating faced an error.

params:

  • file: The file object whom thumbnail is generated.
  • error: The error faced while generated.

example

filerobot.on('thumbnail:generated', (file, error) => {
  console.log('[Thumbnail-generator]: File's thumbnail had an error while generating', file)
  console.log('The error: ', error)
})

Subscribers

thumbnail:request

handler: (fileObject) => ...

Subscribes the handler of generating thumbnail for a file, fired when the event is emitted.

thumbnail:update

handler: (fileObject) => ...

Subscribes the handler of updating a generated thumbnail for a file, fired when the event is emitted.