Add Twitter Web Intents

1 files changed, 43 insertions, 0 deletions

diff --git a/app/assets/javascripts/twitter.js b/app/assets/javascripts/twitter.js
new file mode 100644
index 0000000..05993f2
--- /dev/null
+++ b/app/assets/javascripts/twitter.js
@@ -0,0 +1,43 @@
+(function() {
+  if (window.__twitterIntentHandler) return;
+  var intentRegex = /twitter\.com(\:\d{2,4})?\/intent\/(\w+)/,
+      windowOptions = 'scrollbars=yes,resizable=yes,toolbar=no,location=yes',
+      width = 550,
+      height = 420,
+      winHeight = screen.height,
+      winWidth = screen.width;
+ 
+  function handleIntent(e) {
+    e = e || window.event;
+    var target = e.target || e.srcElement,
+        m, left, top;
+ 
+    while (target && target.nodeName.toLowerCase() !== 'a') {
+      target = target.parentNode;
+    }
+ 
+    if (target && target.nodeName.toLowerCase() === 'a' && target.href) {
+      m = target.href.match(intentRegex);
+      if (m) {
+        left = Math.round((winWidth / 2) - (width / 2));
+        top = 0;
+ 
+        if (winHeight > height) {
+          top = Math.round((winHeight / 2) - (height / 2));
+        }
+ 
+        window.open(target.href, 'intent', windowOptions + ',width=' + width +
+                                           ',height=' + height + ',left=' + left + ',top=' + top);
+        e.returnValue = false;
+        e.preventDefault && e.preventDefault();
+      }
+    }
+  }
+ 
+  if (document.addEventListener) {
+    document.addEventListener('click', handleIntent, false);
+  } else if (document.attachEvent) {
+    document.attachEvent('onclick', handleIntent);
+  }
+  window.__twitterIntentHandler = true;
+}());