Refactored formattedAmount.
This commit is contained in:
Brendon Duncan
parent
cbf66a2176
commit
de33fe5868
1 changed files with 162 additions and 155 deletions
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@ -1,5 +1,6 @@
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'use strict';
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(function(){
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/**
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* @desc amount directive that can be used to display formatted financial values
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* size-equal attribute is optional, defaults to false.
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@ -10,168 +11,174 @@
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* @example <formatted-amount value="fee.value" currency="fee.currency"></formatted-amount>
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* @example <formatted-amount value="fee.value" currency="fee.currency" size-equal="true"></formatted-amount>
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*/
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angular.module('bitcoincom.directives')
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.directive('formattedAmount', function(uxLanguage) {
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return {
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restrict: 'E',
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scope: {
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value: '@',
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currency: '@',
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sizeEqual: '@'
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},
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templateUrl: 'views/includes/formatted-amount.html',
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controller: function($scope, $timeout) {
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$scope.canShow = false;
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$scope.displaySizeEqual = !!$scope.sizeEqual;
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$timeout(function onFormattedAmountTimeout() {
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var decimalPlaces = {
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'0': ['BIF', 'CLP', 'DJF', 'GNF', 'ILS', 'JPY', 'KMF', 'KRW', 'MGA', 'PYG', 'RWF', 'UGX', 'VND', 'VUV', 'XAF', 'XOF', 'XPF'],
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'3': ['BHD', 'IQD', 'JOD', 'KWD', 'OMR', 'TND'],
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'8': ['BCH', 'BTC']
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};
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var localizeNumbers = function(x, minimumFractionDigits) {
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var parsed = parseFloat(x);
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var opts = {
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minimumFractionDigits: minimumFractionDigits,
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useGrouping: true
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};
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var lang = uxLanguage.getCurrentLanguage();
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var localized = parsed.toLocaleString(lang, opts);
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var corrected = ensureEnoughFractionalDigits(localized, x, minimumFractionDigits);
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return corrected;
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};
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var buildAmount = function(start, middle, end) {
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$scope.start = start;
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$scope.middle = middle;
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$scope.end = end;
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};
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var getDecimalPlaces = function(currency) {
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if (decimalPlaces['0'].indexOf(currency.toUpperCase()) > -1) return '0';
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if (decimalPlaces['3'].indexOf(currency.toUpperCase()) > -1) return '3';
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if (decimalPlaces['8'].indexOf(currency.toUpperCase()) > -1) return '8';
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return '2';
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};
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var getDecimalSeparator = function() {
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var testNum = 1.5;
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var testString = testNum.toLocaleString(uxLanguage.getCurrentLanguage());
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// Some environments let you set decimal separators that are more than one character
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var separator = /^1(.+)5$/.exec(testString)[1]
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return separator;
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};
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var formatNumbers = function() {
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// During watch, may be changed from having a separate currency value,
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// to both being in value. Don't want to use previous currency value.
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// Try to extract currency from value..
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var currencySplit = $scope.value.split(" ");
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if (currencySplit.length === 2) {
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$scope.currency = currencySplit[1];
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}
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$scope.currency = $scope.currency || '';
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var parsed = parseFloat($scope.value);
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var valueFormatted = '';
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var valueProcessing = '';
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switch (getDecimalPlaces($scope.currency)) {
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case '0':
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if (isNaN(parsed)) {
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buildAmount('-', '', '');
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} else {
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valueFormatted = localizeNumbers(Math.round(parsed), 0);
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buildAmount(valueFormatted, '', '');
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}
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break;
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case '3':
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if (isNaN(parsed)) {
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buildAmount('-' + getDecimalSeparator() + '---', '', '');
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} else {
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valueProcessing = parsed.toFixed(3);
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valueFormatted = localizeNumbers(valueProcessing, 3);
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buildAmount(valueFormatted, '', '');
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}
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break;
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case '8':
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if (isNaN(parsed)) {
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buildAmount('-' + getDecimalSeparator() + '---', '', '');
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} else if (parsed === 0) {
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buildAmount('0', '', '');
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} else {
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valueFormatted = parsed.toFixed(8);
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valueFormatted = localizeNumbers(valueFormatted, 8);
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var start = valueFormatted.slice(0, -5);
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var middle = valueFormatted.slice(-5, -2);
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var end = valueFormatted.substr(valueFormatted.length - 2);
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buildAmount(start, middle, end);
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}
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break;
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default: // 2
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if (isNaN(parsed)) {
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buildAmount('-' + getDecimalSeparator() + '--', '', '');
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} else {
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valueProcessing = parseFloat(parsed.toFixed(2));
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valueFormatted = localizeNumbers(valueProcessing, 2);
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buildAmount(valueFormatted, '', '');
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}
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break;
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}
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$scope.canShow = true;
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};
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formatNumbers();
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$scope.$watchGroup(['currency', 'value'], function onFormattedAmountWatch() {
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formatNumbers();
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});
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/**
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* On Android 4.4, toLocaleString() only returns 3 fractional digits when 8 is specified.
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*/
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function ensureEnoughFractionalDigits(localizedString, number, desiredFractionDigits) {
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if (desiredFractionDigits === 0) {
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// Assume it is OK
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return localizedString;
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}
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var fractionalRe = /^(\d*\D)(\d+)$/;
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var match = fractionalRe.exec(localizedString);
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if (match.length !== 3) {
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// Don't know what's happening, just return what we have
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return localizedString;
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}
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var decimals = match[2];
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var decimalCount = decimals.length;
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if (decimalCount >= desiredFractionDigits) {
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// Everything is OK.
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return localizedString;
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}
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if (typeof number !== 'number') {
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number = parseFloat(number);
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}
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var fixed = number.toFixed(desiredFractionDigits);
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var fixedMatch = fractionalRe.exec(fixed);
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if (fixedMatch.length !== 3) {
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// Don't know what's happening, just return what we have
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return localizedString;
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}
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// Keeps locale decimal separator.
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var enough = match[1] + fixedMatch[2];
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return enough;
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}
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});
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angular
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.module('bitcoincom.directives')
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.directive('formattedAmount', function() {
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return {
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restrict: 'E',
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scope: {
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value: '@',
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currency: '@',
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sizeEqual: '@'
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},
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templateUrl: 'views/includes/formatted-amount.html',
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controller: formattedAmountController
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}
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};
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});
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function formattedAmountController($scope, $timeout, uxLanguage) {
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$scope.canShow = false;
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$scope.displaySizeEqual = !!$scope.sizeEqual;
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$timeout(function onFormattedAmountTimeout() {
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var decimalPlaces = {
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'0': ['BIF', 'CLP', 'DJF', 'GNF', 'ILS', 'JPY', 'KMF', 'KRW', 'MGA', 'PYG', 'RWF', 'UGX', 'VND', 'VUV', 'XAF', 'XOF', 'XPF'],
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'3': ['BHD', 'IQD', 'JOD', 'KWD', 'OMR', 'TND'],
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'8': ['BCH', 'BTC']
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};
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formatNumbers();
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$scope.$watchGroup(['currency', 'value'], function onFormattedAmountWatch() {
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formatNumbers();
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});
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function buildAmount(start, middle, end) {
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$scope.start = start;
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$scope.middle = middle;
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$scope.end = end;
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};
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/**
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* On Android 4.4, toLocaleString() only returns 3 fractional digits when 8 is specified.
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*/
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function ensureEnoughFractionDigits(localizedString, number, desiredFractionDigits) {
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if (desiredFractionDigits === 0) {
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// Assume it is OK
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return localizedString;
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}
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var fractionalRe = /^-*(\d*\D)(\d+)$/;
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var match = fractionalRe.exec(localizedString);
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if (!match || match.length !== 3) {
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// Don't know what's happening, just return what we have
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return localizedString;
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}
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var decimals = match[2];
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var decimalCount = decimals.length;
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if (decimalCount >= desiredFractionDigits) {
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// Everything is OK.
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return localizedString;
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}
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if (typeof number !== 'number') {
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number = parseFloat(number);
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}
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var fixed = number.toFixed(desiredFractionDigits);
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var fixedMatch = fractionalRe.exec(fixed);
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if (!fixedMatch || fixedMatch.length !== 3) {
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// Don't know what's happening, just return what we have
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return localizedString;
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}
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// Keeps locale decimal separator.
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var enough = match[1] + fixedMatch[2];
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return enough;
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}
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function formatNumbers() {
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// During watch, may be changed from having a separate currency value,
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// to both being in value. Don't want to use previous currency value.
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// Try to extract currency from value..
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var currencySplit = $scope.value.split(" ");
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if (currencySplit.length === 2) {
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$scope.currency = currencySplit[1];
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}
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$scope.currency = $scope.currency || '';
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var parsed = parseFloat($scope.value);
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var valueFormatted = '';
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var valueProcessing = '';
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switch (getDecimalPlaces($scope.currency)) {
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case '0':
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if (isNaN(parsed)) {
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buildAmount('-', '', '');
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} else {
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valueFormatted = localizeNumbers(Math.round(parsed), 0);
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buildAmount(valueFormatted, '', '');
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}
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break;
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case '3':
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if (isNaN(parsed)) {
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buildAmount('-' + getDecimalSeparator() + '---', '', '');
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} else {
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valueProcessing = parsed.toFixed(3);
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valueFormatted = localizeNumbers(valueProcessing, 3);
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buildAmount(valueFormatted, '', '');
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}
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break;
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case '8':
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if (isNaN(parsed)) {
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buildAmount('-' + getDecimalSeparator() + '---', '', '');
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} else if (parsed === 0) {
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buildAmount('0', '', '');
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} else {
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valueFormatted = parsed.toFixed(8);
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valueFormatted = localizeNumbers(valueFormatted, 8);
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var start = valueFormatted.slice(0, -5);
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var middle = valueFormatted.slice(-5, -2);
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var end = valueFormatted.substr(valueFormatted.length - 2);
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buildAmount(start, middle, end);
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}
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break;
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default: // 2
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if (isNaN(parsed)) {
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buildAmount('-' + getDecimalSeparator() + '--', '', '');
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} else {
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valueProcessing = parseFloat(parsed.toFixed(2));
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valueFormatted = localizeNumbers(valueProcessing, 2);
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buildAmount(valueFormatted, '', '');
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}
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break;
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}
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$scope.canShow = true;
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};
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function getDecimalPlaces(currency) {
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if (decimalPlaces['0'].indexOf(currency.toUpperCase()) > -1) return '0';
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if (decimalPlaces['3'].indexOf(currency.toUpperCase()) > -1) return '3';
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if (decimalPlaces['8'].indexOf(currency.toUpperCase()) > -1) return '8';
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return '2';
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};
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function getDecimalSeparator() {
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var testNum = 1.5;
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var testString = testNum.toLocaleString(uxLanguage.getCurrentLanguage());
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// Some environments let you set decimal separators that are more than one character
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var separator = /^1(.+)5$/.exec(testString)[1]
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return separator;
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};
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function localizeNumbers(x, minimumFractionDigits) {
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var parsed = parseFloat(x);
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var opts = {
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minimumFractionDigits: minimumFractionDigits,
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useGrouping: true
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};
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var lang = uxLanguage.getCurrentLanguage();
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var localized = parsed.toLocaleString(lang, opts);
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var corrected = ensureEnoughFractionDigits(localized, x, minimumFractionDigits);
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return corrected;
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};
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});
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}
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);
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})();
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