Allowing sharing on whatsapp (#1125)

Co-authored-by: christophe dervieux <christophe.dervieux@gmail.com>

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: bookdown
 Type: Package
 Title: Authoring Books and Technical Documents with R Markdown
-Version: 0.21.9
+Version: 0.21.10
 Authors@R: c(
     person("Yihui", "Xie", role = c("aut", "cre"), email = "xie@yihui.name", comment = c(ORCID = "0000-0003-0645-5666")),
     person("JJ", "Allaire", role = "ctb"),
@@ -40,6 +40,7 @@ Authors@R: c(
     person("Nathan", "Werth", role = "ctb"),
     person("Noam", "Ross", role = "ctb"),
     person("Peter", "Hickey", role = "ctb"),
+    person("Pedro Rafael D.", "Marinho", role="ctb", comment = c(ORCID = "0000-0003-1591-8300")),
     person("Romain", "Lesur", role = "ctb", comment = c(ORCID = "0000-0002-0721-5595")),
     person("Sahir", "Bhatnagar", role = "ctb"),
     person("Shir", "Dekel", role = "ctb", comment = c(ORCID = "0000-0003-1773-2446")),

NEWS.md

@@ -12,6 +12,8 @@
 
 - Using the 'Knit' button now also works with a Rmd file in a sub-directory of the book project (when `rmd_subdir` is used in `_bookdown.yml`) (#1122)
 
+- WhatsApp sharing feature has been added for `gitbook()` using `sharing` key  in `config`. This enables sharing the bookdown URL in Whatsapp on Mobile and on Desktop (thanks, @prdm0, #1125).
+
 ## BUG FIXES
 
 - Adapt CSS in `gitbook()` and `html_book()` for correct diplaying of `<details><summary>` content (thanks, @maelle, #971)

R/gitbook.R

@@ -232,6 +232,7 @@ gitbook_config = function(config = list()) {
     sharing = list(
       github = FALSE, facebook = TRUE, twitter = TRUE,
       linkedin = FALSE, weibo = FALSE, instapaper = FALSE, vk = FALSE,
+      whatsapp = FALSE,
       all = c('facebook', 'twitter', 'linkedin', 'weibo', 'instapaper')
     ),
     fontsettings = list(theme = 'white', family = 'sans', size = 2),

inst/examples/03-formats.Rmd

@@ -109,6 +109,7 @@ bookdown::gitbook:
       weibo: no
       instapaper: no
       vk: no
+      whatsapp: no
       all: ['facebook', 'twitter', 'linkedin', 'weibo', 'instapaper']
     info: yes
 ```

inst/resources/gitbook/js/plugin-sharing.js

@@ -57,10 +57,21 @@ gitbook.require(["gitbook", "lodash", "jQuery"], function(gitbook, _, $) {
                 e.preventDefault();
                 window.open("http://vkontakte.ru/share.php?url="+encodeURIComponent(location.href));
             }
-        }
+        },
+        'whatsapp': {
+            'label': 'Whatsapp',
+            'icon': 'fa fa-whatsapp',
+            'onClick': function(e) {
+                e.preventDefault();
+                var url = encodeURIComponent(location.href);
+                window.open((isMobile() ? "whatsapp://send" : "https://web.whatsapp.com/send") + "?text=" + url);
+            }
+        },
     };
 
-
+    function isMobile() {
+      return !!navigator.maxTouchPoints;
+    }
 
     gitbook.events.bind("start", function(e, config) {
         var opts = config.sharing;