Using shinythemes breaks glyphicons

[wch]

When shinythemes is used in an application, it breaks glyphicons. These are used in Shiny's datepicker for the arrows.

Example app:

library(shiny)
library(shinythemes)

shinyApp(
  ui = fluidPage(
    theme = shinytheme("cerulean"),
    "An icon:", icon("calendar", lib = "glyphicon"),
    dateInput("date", "Date:")
  ),
  server = function(input, output) { }
)

The problem is that the css for the themes contains this reference for the fonts:

src:url('../fonts/glyphicons-halflings-regular.eot');

But the fonts are contained in /shared/bootstrap/fonts/, not /fonts/.

Possible paths for fixing it (and roadblocks):

• Add a htmlDependency for themes, with the themes placed in /shared/bootstrap/css or /shared/bootstrap/shinythemes. However Shiny doesn't allow htmlDependencies for the theme argument; it only takes a path.
• Currently, the .onLoad for shinythemes uses addResourcePath() to make the themes available at /shinythemes/. If they could be made available at /shared/bootstrap/shinythemes/, then that would fix it. However, addResourcePath() doesn't allow paths more than one level deep.
• Include the fonts with shinythemes; they would be available at /fonts/.
• Edit the CSS to fix the font paths.

[wch]

This is fixed in 5c5d5da, by adding the glyphicon fonts to this package.