File Upload Widgets

Class and constructor for file upload widgets

Usage

FileUpload(...)

Arguments

...

Any arguments used to initialize the fields of the object

Functions

• FileUpload(): The FileUpload constructor function

Super classes

RKernel::HasTraits -> RKernel::Widget -> RKernel::DOMWidget -> RKernel::DescriptionWidget -> RKernel::ValueWidget -> FileUpload

Public fields

_model_name

Name of the Javascript model in the frontend.

_view_name

Name of the Javascript view in the frontend.

accept

A character string that defineds the accepted file type. If empty, all files are accepted.

multiple

A Boolean traitlet, whether multiple files are accepted.

disabled

A Boolean traitlet, whether the widget is disabled.

icon

A character string, the font-awesome without the 'fa-' prefix.

button_style

The string that describes the button style

style

The button style, an object of class "ButtonStyleClass".

error

A string with an error message, if applicable.

value

The uploaded data.

Active bindings

filename

A character string, the name of the uploaded file.

contents

A raw vector with the contents of the uploaded file

Methods

Public methods

• FileUploadClass$new()

• FileUploadClass$handle_buffers()

• FileUploadClass$clone()

Inherited methods

• RKernel::HasTraits$notify()
• RKernel::HasTraits$observe()
• RKernel::HasTraits$validate()
• RKernel::Widget$_send()
• RKernel::Widget$check_version()
• RKernel::Widget$close()
• RKernel::Widget$display_data()
• RKernel::Widget$get_state()
• RKernel::Widget$handle_comm_msg()
• RKernel::Widget$handle_comm_opened()
• RKernel::Widget$handle_custom_msg()
• RKernel::Widget$handle_displayed()
• RKernel::Widget$handle_event()
• RKernel::Widget$on_displayed()
• RKernel::Widget$on_event()
• RKernel::Widget$on_msg()
• RKernel::Widget$open()
• RKernel::Widget$send()
• RKernel::Widget$send_state()
• RKernel::Widget$set_state()
• RKernel::DOMWidget$add_class()
• RKernel::DOMWidget$has_class()
• RKernel::DOMWidget$remove_class()
• RKernel::ValueWidget$on_change()

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Method new()

A generic initializer function

Usage

FileUploadClass$new(description = "Upload", ...)

Arguments

description

The button description

...

Any arguments used to initialize the fields of the object

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Method handle_buffers()

Handle buffers in message

Usage

FileUploadClass$handle_buffers(msg)

Arguments

msg

A comm message

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Method clone()

The objects of this class are cloneable with this method.

Usage

FileUploadClass$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.