From 4543e0e5e925c0b395853f66ed2fe6b4b34eb441 Mon Sep 17 00:00:00 2001
From: Igor Rafael <igor.rafael@gmail.com>
Date: Fri, 27 Oct 2017 08:44:33 -0200
Subject: [PATCH] fix(uiPercentageMask): fix value update when using dynamic
 decimals

---
 src/global/percentage/percentage.js      | 54 ++++++++++--------------
 src/global/percentage/percentage.test.js | 12 +++---
 2 files changed, 29 insertions(+), 37 deletions(-)

diff --git a/src/global/percentage/percentage.js b/src/global/percentage/percentage.js
index 4d8a7c14..f859fe1b 100644
--- a/src/global/percentage/percentage.js
+++ b/src/global/percentage/percentage.js
@@ -4,51 +4,48 @@ var validators = require('../../helpers/validators');
 var NumberMasks = require('../../helpers/number-mask-builder');
 var PreFormatters = require('../../helpers/pre-formatters');
 
-function PercentageMaskDirective($locale) {
-	function preparePercentageToFormatter(value, decimals, modelMultiplier) {
-		return PreFormatters.clearDelimitersAndLeadingZeros((parseFloat(value)*modelMultiplier).toFixed(decimals));
-	}
+function preparePercentageToFormatter(value, decimals, modelMultiplier) {
+	return PreFormatters.clearDelimitersAndLeadingZeros((parseFloat(value)*modelMultiplier).toFixed(decimals));
+}
 
+function PercentageMaskDirective($locale) {
 	return {
 		restrict: 'A',
 		require: 'ngModel',
 		link: function(scope, element, attrs, ctrl) {
-			var decimalDelimiter = $locale.NUMBER_FORMATS.DECIMAL_SEP,
-				thousandsDelimiter = $locale.NUMBER_FORMATS.GROUP_SEP,
-				percentageSymbol = ' %',
-				decimals = parseInt(attrs.uiPercentageMask),
-				backspacePressed = false;
+			var decimalDelimiter = $locale.NUMBER_FORMATS.DECIMAL_SEP;
 
+			var backspacePressed = false;
 			element.bind('keydown keypress', function(event) {
 				backspacePressed = event.which === 8;
 			});
 
-			var modelValue = {
-				multiplier : 100,
-				decimalMask: 2
-			};
-
+			var thousandsDelimiter = $locale.NUMBER_FORMATS.GROUP_SEP;
 			if (angular.isDefined(attrs.uiHideGroupSep)) {
 				thousandsDelimiter = '';
 			}
 
-			if (angular.isDefined(attrs.uiHideSpace)) {
+			var percentageSymbol = ' %';
+			if (angular.isDefined(attrs.uiHidePercentageSign)) {
+				percentageSymbol = '';
+			} else if (angular.isDefined(attrs.uiHideSpace)) {
 				percentageSymbol = '%';
 			}
 
-			if (angular.isDefined(attrs.uiHidePercentageSign)) {
-				percentageSymbol = '';
+			var decimals = parseInt(attrs.uiPercentageMask);
+			if (isNaN(decimals)) {
+				decimals = 2;
 			}
 
+			var modelValue = {
+				multiplier : 100,
+				decimalMask: 2
+			};
 			if (angular.isDefined(attrs.uiPercentageValue)) {
 				modelValue.multiplier  = 1;
 				modelValue.decimalMask = 0;
 			}
 
-			if (isNaN(decimals)) {
-				decimals = 2;
-			}
-
 			var numberDecimals = decimals + modelValue.decimalMask;
 			var viewMask = NumberMasks.viewMask(decimals, decimalDelimiter, thousandsDelimiter),
 				modelMask = NumberMasks.modelMask(numberDecimals);
@@ -57,14 +54,14 @@ function PercentageMaskDirective($locale) {
 				if (ctrl.$isEmpty(value)) {
 					return value;
 				}
-
 				var prefix = (angular.isDefined(attrs.uiNegativeNumber) && value < 0) ? '-' : '';
 				var valueToFormat = preparePercentageToFormatter(value, decimals, modelValue.multiplier);
+				var formatedValue = prefix + viewMask.apply(valueToFormat) + percentageSymbol;
 
-				return prefix + viewMask.apply(valueToFormat) + percentageSymbol;
+				return formatedValue;
 			}
 
-			function parse(value) {
+			function parser(value) {
 				if (ctrl.$isEmpty(value)) {
 					return null;
 				}
@@ -102,22 +99,17 @@ function PercentageMaskDirective($locale) {
 			}
 
 			ctrl.$formatters.push(formatter);
-			ctrl.$parsers.push(parse);
+			ctrl.$parsers.push(parser);
 
 			if (attrs.uiPercentageMask) {
 				scope.$watch(attrs.uiPercentageMask, function(_decimals) {
 					decimals = isNaN(_decimals) ? 2 : _decimals;
 
-					if (angular.isDefined(attrs.uiPercentageValue)) {
-						modelValue.multiplier  = 1;
-						modelValue.decimalMask = 0;
-					}
-
 					numberDecimals = decimals + modelValue.decimalMask;
 					viewMask = NumberMasks.viewMask(decimals, decimalDelimiter, thousandsDelimiter);
 					modelMask = NumberMasks.modelMask(numberDecimals);
 
-					parse(ctrl.$viewValue);
+					parser(formatter(ctrl.$modelValue));
 				});
 			}
 
diff --git a/src/global/percentage/percentage.test.js b/src/global/percentage/percentage.test.js
index 8e17d922..caf3745f 100644
--- a/src/global/percentage/percentage.test.js
+++ b/src/global/percentage/percentage.test.js
@@ -61,7 +61,7 @@ describe('ui-percentage-mask', function() {
 		});
 
 		var model = input.controller('ngModel');
-		expect(model.$viewValue).toBe('100%');
+		expect(model.$viewValue).toBe('1%');
 	});
 
 	it('should hide space before "%" after a model change if ui-hide-space is present', angular.mock.inject(function($rootScope) {
@@ -71,7 +71,7 @@ describe('ui-percentage-mask', function() {
 		});
 
 		var model = input.controller('ngModel');
-		expect(model.$viewValue).toBe('100%');
+		expect(model.$viewValue).toBe('1%');
 
 		$rootScope.model = 50;	//When accessing via rootScope, update model to 50 not 0.5 to represent 50%
 		$rootScope.$digest();
@@ -94,14 +94,14 @@ describe('ui-percentage-mask', function() {
 	it('should allow changing the number of decimals', angular.mock.inject(function($rootScope) {
 		var input = TestUtil.compile('<input ng-model="model" ui-percentage-mask="decimals">', {
 			model: '12.345',
-			decimals: 2
+			decimals: 1
 		});
 
 		var model = input.controller('ngModel');
-		expect(model.$viewValue).toBe('1,234.50 %');
+		expect(model.$viewValue).toBe('1,234.5 %');
 		$rootScope.decimals = 3;
 		$rootScope.$digest();
-		expect(model.$viewValue).toBe('123.450 %');
+		expect(model.$viewValue).toBe('1,234.500 %');
 		$rootScope.decimals = 'invalid value';
 		$rootScope.$digest();
 		expect(model.$viewValue).toBe('1,234.50 %');
@@ -196,7 +196,7 @@ describe('ui-percentage-mask', function() {
 		expect(model.$viewValue).toBe('1,234.50 %');
 		$rootScope.decimals = 3;
 		$rootScope.$digest();
-		expect(model.$viewValue).toBe('123.450 %');
+		expect(model.$viewValue).toBe('1,234.501 %');
 		$rootScope.decimals = 'invalid value';
 		$rootScope.$digest();
 		expect(model.$viewValue).toBe('1,234.50 %');