first commit

public/js/modules/quantity.js

@@ -0,0 +1,72 @@
+CNVS.Quantity = function() {
+	var __core = SEMICOLON.Core;
+
+	return {
+		init: function(selector) {
+			if( __core.getSelector(selector, false, false).length < 1 ){
+				return true;
+			}
+
+			__core.initFunction({ class: 'has-plugin-quantity', event: 'pluginQuantityReady' });
+
+			selector = __core.getSelector( selector, false );
+			if( selector.length < 1 ){
+				return true;
+			}
+
+			selector.forEach( function(element) {
+				var plus = element.querySelector('.plus'),
+					minus = element.querySelector('.minus'),
+					input = element.querySelector('.qty');
+
+				var eventChange = new Event("change");
+
+				plus.onclick = function(e) {
+					e.preventDefault();
+
+					var value = input.value,
+						step = input.getAttribute('step') || 1,
+						max = input.getAttribute('max'),
+						intRegex = /^\d+$/;
+
+					if( max && ( Number(elValue) >= Number( max ) ) ) {
+						return false;
+					}
+
+					if( intRegex.test( value ) ) {
+						var valuePlus = Number(value) + Number(step);
+						input.value = valuePlus;
+					} else {
+						input.value = Number(step);
+					}
+
+					input.dispatchEvent(eventChange);
+				};
+
+				minus.onclick = function(e) {
+					e.preventDefault();
+
+					var value = input.value,
+						step = input.getAttribute('step') || 1,
+						min = input.getAttribute('min'),
+						intRegex = /^\d+$/;
+
+					if( !min || min < 0 ) {
+						min = 1;
+					}
+
+					if( intRegex.test( value ) ) {
+						if( Number(value) > Number(min) ) {
+							var valueMinus = Number(value) - Number(step);
+							input.value = valueMinus;
+						}
+					} else {
+						input.value = Number(step);
+					}
+
+					input.dispatchEvent(eventChange);
+				};
+			});
+		}
+	};
+}();