Merge branch 'master' of https://github.com/sithmel/reveal.js

merge postmessage api

1 files changed, 40 insertions, 0 deletions

diff --git a/plugin/postmessage/postmessage.js b/plugin/postmessage/postmessage.js
new file mode 100644
index 0000000..176d230
--- /dev/null
+++ b/plugin/postmessage/postmessage.js
@@ -0,0 +1,40 @@
+/*
+simple postmessage plugin
+
+Useful when a reveal slideshow is inside an iframe.
+It allows to call reveal methods from outside.
+
+Example:
+   var reveal =  window.frames[0];
+
+   // Reveal.prev(); 
+   reveal.postMessage(JSON.stringify({method: 'prev', args: []}), '*');
+   // Reveal.next(); 
+   reveal.postMessage(JSON.stringify({method: 'next', args: []}), '*');
+   // Reveal.slide(2, 2); 
+   reveal.postMessage(JSON.stringify({method: 'slide', args: [2,2]}), '*');
+
+Add to the slideshow:
+
+	dependencies: [
+        ...
+		{ src: 'plugin/postmessage/postmessage.js', async: true, condition: function() { return !!document.body.classList; } }
+	]
+
+
+*/
+
+(function (){
+
+window.addEventListener("message", function (event){
+    var data = JSON.parse(event.data),
+        method = data.method,
+        args = data.args;
+    if (Reveal[method]){
+        Reveal[method].apply(Reveal, data.args);
+    }
+}, false);
+}());
+
+
+