implement pinch to zoom

2026-08-30 16:15:14 +02:00
parent ea50704f8a
commit 7eb02f07dc
160 changed files with 15806 additions and 61 deletions
@@ -0,0 +1,20 @@
+
+/**
+ * Module exports.
+ */
+
+module.exports = touchActionProperty();
+
+/**
+ * Returns "touchAction", "msTouchAction", or null.
+ */
+
+function touchActionProperty(doc) {
+  if (!doc) doc = document;
+  var div = doc.createElement('div');
+  var prop = null;
+  if ('touchAction' in div.style) prop = 'touchAction';
+  else if ('msTouchAction' in div.style) prop = 'msTouchAction';
+  div = null;
+  return prop;
+}