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# File R/ndtvAnimationWidget.R in package ndtv, part of the Statnet suite
# of packages for network analysis, http://statnet.org .
#
# This software is distributed under the GPL-3 license. It is free,
# open source, and has the attribution requirements (GPL Section 7) at
# http://statnet.org/attribution
#
# Copyright 2016 Statnet Commons
#######################################################################
ndtvAnimationWidget <- function(out,options, width = NULL, height = NULL) {
message('loading ndtv-d3 animation widget...')
# forward options using x
x = list(
graphData = out, # the network object and the rendering position data
# the control options for ndtv-d3 need to be seperately JSON encoded or they will be mangled
# into a format that ndtv-d3 won't recognize
animationOptions = jsonlite::toJSON(options,auto_unbox=TRUE,matrix='rowmajor', na = 'null',null='list')
)
# the htmlwidgets package uses non-standard arguments to toJSON command
# have to set these back to defaults for ndtv_d3 to parse correctly
# via hack outlined in http://www.htmlwidgets.org/develop_advanced.html
attr(x, 'TOJSON_ARGS') <- list(matrix='rowmajor', na = 'null',auto_unbox=FALSE,null='list')
# create widget
htmlwidgets::createWidget(
name = 'ndtvAnimationWidget',
x,
width = width,
height = height,
package = 'ndtv',
sizingPolicy = htmlwidgets::sizingPolicy(
padding = 0,
#defaultWidth = 500,
#defaultHeight = 500
#browser.fill = TRUE
)
)
}
#' Widget output function for use in Shiny
#'
#' @export
ndtvAnimationWidgetOutput <- function(outputId, width = '100%', height = '500px'){
htmlwidgets::shinyWidgetOutput(outputId, 'ndtvAnimationWidget', width, height, package = 'ndtv')
}
#' Widget render function for use in Shiny
#'
#' @export
renderNdtvAnimationWidget <- function(expr, env = parent.frame(), quoted = FALSE) {
if (!quoted) { expr <- substitute(expr) } # force quoted
htmlwidgets::shinyRenderWidget(expr, ndtvAnimationWidgetOutput, env, quoted = TRUE)
}
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