add a Team receiving widget

lib/v2.js

@@ -0,0 +1,50 @@
+/**
+ * Gratipay widget main initialization.
+ *
+ * Initializes widgets and pulls in the Widgets API if it isn't already loaded
+ */
+(function() {
+    'use strict';
+
+    // Short wrapper around document.querySelectorAll()
+    function $(selector) {
+        return document.querySelectorAll(selector);
+    }
+
+    // Slurp up widgets (identified by having the `data-gratipay-username` property)
+    var elements = $('[data-gratipay-teamslug]');
+
+    // Cache length
+    var length = elements.length;
+
+    // Grab window.Gratipay if available
+    var Gratipay = window.Gratipay || {};
+
+    // Where's our files?
+    var api = window.grtpAPI || 'https://grtp.co/v1/';
+
+    window._grtp = window._grtp || [];
+
+    // Load widget API if it hasn't been
+    if (!Gratipay.widgets && !$('script[src="' + api + 'api.js"]').length) {
+        var grtp = document.createElement('script');
+        grtp.src = api + 'api.js';
+        $('head')[0].appendChild(grtp);
+    }
+
+    // Load widgets
+    for (var i=0; i<length; i++) {
+        var element = elements[i];
+
+        // Ignore widgets with the `data-gratipay-readystatus` property
+        if (!element.getAttribute('data-gratipay-readystatus')) {
+            if (Gratipay.widgets) {
+                Gratipay.widgets.load(element);
+            } else {
+                _grtp.push(element);
+            }
+
+            element.setAttribute('data-gratipay-readystatus', 'loading');
+        }
+    }
+})();