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The widgetframe package eases embedding of htmlwidgets inside various HTML based R Markdown documents using iframes. To make the iframes responsive it uses NPR’s Pymjs library.
This package provides two primary functions, frameableWidget, and frameWidget. frameableWidget is used to add extra code to a htmlwidgets instance, which allows it to be rendered inside a responsive iframe. frameWidget returns a new htmlwidgets instance, which wraps and displays content of another htmlwidgets instance (e.g. leaflet, DT etc.) inside a responsive iframe.
For each of the document type below you can find fully working example code in the Github Repo.
Avaliable on CRAN and can be installed using …
install.packages('widgetframe')Or install the dev version from Github using devtools …
if(!require(devtools)) {
install.packages('devtools')
}
devtools::install_github('bhaskarvk/widgetframe')frameableWidget function.The frameableWidget function should be used when you need a HTML which can be embedded in an external CMS like WordPress or Blogger, or a static HTML website.
library(leaflet)
library(widgetframe)
l <- leaflet() %>% addTiles()
htmlwidgets::saveWidget(frameableWidget(l),'leaflet.html')The resulting leaflet.html file contains the necessary Pym.js Child initialization code and will work inside a regular iFrame or better yet a Pym.js responsive iFrame. It is expected that the site which is going to embed this widget’s content has the necessary Pymjs Parent initialization code as described here. The HTML dependencies of the widget (CSS/JS files) will be either inlined or kept external depending on the seflcontained argument to saveWidget.
frameWidget functionframeWidget function takes an existing htmlwidgets instance such as leaflet or DT etc., wraps it and returns a new htmlwidgets instance, which when rendered, displays the input wrapped htmlwdigets instance inside a responsive iFrame. This function can be used to knit htmlwidgets such that they are unaffected by the parent HTML file’s CSS. This could be useful in bookdown or R Markdown Websites to embed widgets such that they are unaffected by the site’s global CSS/JS.
` ``{r}
library(leaflet)
library(widgetframe)
l <- leaflet(height=300) %>% addTiles() %>% setView(0,0,1)
frameWidget(l)
` ``` ``{r}
library(dygraphs)
ts <- dygraph(nhtemp, main = “New Haven Temperatures”,
height=250, width=‘95%’)
frameWidget(ts)
` ``To know more about how widgetframe and knitr/rmarkdown work together, see the widgetframe and knitr vignette.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.