colourWidget {colourpicker}

Create a colour picker htmlwidget

Description

Create a colour picker htmlwidget. This is not terribly useful right now since you can use the more powerful colourInput in Shiny apps and Rmarkdown documents, but this gives you an htmlwidget version of that colour picker.

Usage

colourWidget(
  value = "white",
  showColour = c("both", "text", "background"),
  palette = c("square", "limited"),
  allowedCols = NULL,
  allowTransparent = FALSE,
  returnName = FALSE,
  closeOnClick = FALSE,
  width = "300px",
  height = "35px",
  elementId = NULL
)

Arguments

value

Initial value (can be a colour name or HEX code)

showColour

Whether to show the chosen colour as text inside the input, as the background colour of the input, or both (default).

palette

The type of colour palette to allow the user to select colours from. square (default) shows a square colour palette that allows the user to choose any colour, while limited only gives the user a predefined list of colours to choose from.

allowedCols

A list of colours that the user can choose from. Only applicable when palette == "limited". The limited palette uses a default list of 40 colours if allowedCols is not defined. If the colour specified in value is not in the list, the default colour will revert to black.

allowTransparent

If TRUE, enables a slider to choose an alpha (transparency) value for the colour. When a colour with opacity is chosen, the return value is an 8-digit HEX code.

returnName

If TRUE, then return the name of an R colour instead of a HEX value when possible.

closeOnClick

If TRUE, then the colour selection panel will close immediately after selecting a colour.

width

Custom width for the input field.

height

Custom height for the input field.

elementId

Use an explicit element ID for the widget (rather than an automatically generated one).

Examples

colourWidget()
colourWidget("red", palette = "limited", allowedCols = c("yellow", "red", "#123ABC"))