implement pinch to zoom

node_modules/component-query/index.js

@@ -0,0 +1,21 @@
+function one(selector, el) {
+  return el.querySelector(selector);
+}
+
+exports = module.exports = function(selector, el){
+  el = el || document;
+  return one(selector, el);
+};
+
+exports.all = function(selector, el){
+  el = el || document;
+  return el.querySelectorAll(selector);
+};
+
+exports.engine = function(obj){
+  if (!obj.one) throw new Error('.one callback required');
+  if (!obj.all) throw new Error('.all callback required');
+  one = obj.one;
+  exports.all = obj.all;
+  return exports;
+};