updated readme + vignette

README.md

@@ -53,3 +53,24 @@ You can create PDF document of the page with `capture_pdf()`.
 * [snapper](https://github.com/yonicd/snapper) : snap images of html objects in Shiny apps using `canvas2html` JavaScript
 library.
 
+
+
+## Development
+
+This package use [{packer}](https://github.com/JohnCoene/packer) to manage JavaScript assets, see packer's [documentation](https://packer.john-coene.com/#/) for more.
+
+Install nodes modules with:
+
+```r
+packer::npm_install()
+```
+
+Modify `srcjs/exts/image.js` or `srcjs/exts/pdf.js`, then run:
+
+```r
+packer::bundle()
+```
+
+Re-install R package and try `capture()` or `capture_pdf()` functions.
+
+

vignettes/rmarkdown.Rmd

@@ -7,6 +7,7 @@ vignette: >
   %\VignetteEncoding{UTF-8}
 ---
 
+
 ```{r, include = FALSE}
 knitr::opts_chunk$set(
   collapse = TRUE,
@@ -20,23 +21,47 @@ library(capture)
 
 {capure} allow to take screenshots in R Markdown documents in HTML format.
 
+
+
+## All page
+
+Capture a screenshot of the entire page with:
+
+```{r}
+capture(
+  selector = "body", 
+  filename = "my-document", 
+  "Take screenshot", 
+  button_class = "btn btn-primary btn-block"
+)
+```
+
+If you want a PDF as output, you can use `capture_pdf()`.
+
+
+
+## leaflet map
+
 For example, save the map as PNG:
 
 ```{r}
-capture("#my-map", "map", "Save map as PNG")
+capture("#map-and-code", "map", "Save map and code as PNG")
+capture("#only-map", "map", "Save only map as PNG")
 ```
 
-::: {#my-map}
+::: {#map-and-code}
 ```{r map}
 library(leaflet)
 
-leaflet(width = "100%") %>%
+leaflet(width = "100%", elementId = "only-map") %>%
   addTiles() %>%
   addMarkers(lng=174.768, lat=-36.852, popup="The birthplace of R")
 ```
 :::
 
 
+## dygraph chart
+
 Or with a {dygraph} chart:
 
 ```{r}