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authorLars Henrik Mai <lars.mai@kontinui.de>2014-09-21 12:25:47 +0200
committerLars Henrik Mai <lars.mai@kontinui.de>2014-09-21 12:25:47 +0200
commit7cc7910df63d19e7ebc67bb1156437f0559712d7 (patch)
tree66f972354559fe05b7a97efccd08fc363c91cf4d /source/bower_components/modernizr/feature-detects/network-connection.js
parent450a01136a510adc4c96ff12e05e00a2ce550c8f (diff)
add foundation via bower
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+// determining low-bandwidth via navigator.connection
+
+// There are two iterations of the navigator.connection interface:
+
+// The first is present in Android 2.2+ and only in the Browser (not WebView)
+// : docs.phonegap.com/en/1.2.0/phonegap_connection_connection.md.html#connection.type
+// : davidbcalhoun.com/2010/using-navigator-connection-android
+
+// The second is specced at dev.w3.org/2009/dap/netinfo/ and perhaps landing in WebKit
+// : bugs.webkit.org/show_bug.cgi?id=73528
+
+// unknown devices are assumed as fast
+// for more rigorous network testing, consider boomerang.js: github.com/bluesmoon/boomerang/
+
+Modernizr.addTest('lowbandwidth', function() {
+
+ var connection = navigator.connection || { type: 0 }; // polyfill
+
+ return connection.type == 3 || // connection.CELL_2G
+ connection.type == 4 || // connection.CELL_3G
+ /^[23]g$/.test(connection.type); // string value in new spec
+});