send

src/js/controllers/amount.js

@@ -0,0 +1,200 @@
+'use strict';
+
+angular.module('copayApp.controllers').controller('amountController', function($rootScope, $scope, $filter, $timeout, $ionicScrollDelegate, walletService, platformInfo, lodash, configService, go, rateService, $stateParams, $window, $state, $log) {
+
+
+  var unitToSatoshi;
+  var satToUnit;
+  var unitDecimals;
+  var satToBtc;
+  var self = $scope.self;
+  var SMALL_FONT_SIZE_LIMIT = 13;
+  var LENGTH_EXPRESSION_LIMIT = 19;
+
+  $scope.init = function() {
+
+    if (!$stateParams.toAddress) {
+      $log.error('Bad params at amount')
+      throw ('bad params');
+    }
+
+    var reNr = /^[1234567890\.]$/;
+    var reOp = /^[\*\+\-\/]$/;
+
+
+    var disableKeys = angular.element($window).on('keydown', function(e) {
+      if (e.which === 8) { // you can add others here inside brackets.
+        e.preventDefault();
+        $scope.removeDigit();
+      }
+
+      if (e.key && e.key.match(reNr))
+        $scope.pushDigit(e.key);
+
+      else if (e.key && e.key.match(reOp))
+        $scope.pushOperator(e.key);
+
+      else if (e.key && e.key == 'Enter')
+        $scope.finish();
+
+      $timeout(function() {
+        $scope.$apply();
+      }, 10);
+
+    });
+
+    $scope.$on('$destroy', function() {
+      angular.element($window).off('keydown');
+    });
+
+
+    $scope.toAddress = $stateParams.toAddress;
+    $scope.toName = $stateParams.toName;
+
+    var config = configService.getSync().wallet.settings;
+    $scope.unitName = config.unitName;
+    $scope.alternativeIsoCode = config.alternativeIsoCode;
+    $scope.specificAmount = $scope.specificAlternativeAmount = '';
+    $scope.isCordova = platformInfo.isCordova;
+    unitToSatoshi = config.unitToSatoshi;
+    satToUnit = 1 / unitToSatoshi;
+    satToBtc = 1 / 100000000;
+    unitDecimals = config.unitDecimals;
+
+    // in SAT ALWAYS
+    if ($stateParams.toAmount) {
+      $scope.amount = (($stateParams.toAmount) * satToUnit).toFixed(unitDecimals) ;
+    }
+
+
+    processAmount($scope.amount);
+
+    $timeout(function() {
+      $ionicScrollDelegate.resize();
+    }, 100);
+  };
+
+  $scope.toggleAlternative = function() {
+    $scope.showAlternativeAmount = !$scope.showAlternativeAmount;
+
+    if ($scope.amount && isExpression($scope.amount)) {
+      var amount = evaluate(format($scope.amount));
+      $scope.globalResult = '= ' + processResult(amount);
+    }
+  };
+
+  function checkFontSize() {
+    if ($scope.amount && $scope.amount.length >= SMALL_FONT_SIZE_LIMIT) $scope.smallFont = true;
+    else $scope.smallFont = false;
+  };
+
+  $scope.pushDigit = function(digit) {
+    if ($scope.amount && $scope.amount.length >= LENGTH_EXPRESSION_LIMIT) return;
+
+    $scope.amount = ($scope.amount + digit).replace('..', '.');
+    checkFontSize();
+    processAmount($scope.amount);
+  };
+
+  $scope.pushOperator = function(operator) {
+    console.log('[amount.js.90:operator:]', operator); //TODO
+    if (!$scope.amount || $scope.amount.length == 0) return;
+    $scope.amount = _pushOperator($scope.amount);
+
+    function _pushOperator(val) {
+      if (!isOperator(lodash.last(val))) {
+        return val + operator;
+      } else {
+        return val.slice(0, -1) + operator;
+      }
+    };
+  };
+
+  function isOperator(val) {
+    var regex = /[\/\-\+\x\*]/;
+    return regex.test(val);
+  };
+
+  function isExpression(val) {
+    var regex = /^\.?\d+(\.?\d+)?([\/\-\+\*x]\d?\.?\d+)+$/;
+
+    return regex.test(val);
+  };
+
+  $scope.removeDigit = function() {
+    $scope.amount = $scope.amount.slice(0, -1);
+    processAmount($scope.amount);
+    checkFontSize();
+  };
+
+  $scope.resetAmount = function() {
+    $scope.amount = $scope.alternativeResult = $scope.amountResult = $scope.globalResult = '';
+    checkFontSize();
+  };
+
+  function processAmount(val) {
+    if (!val) {
+      $scope.resetAmount();
+      return;
+    }
+
+    var formatedValue = format(val);
+    var result = evaluate(formatedValue);
+
+    if (lodash.isNumber(result)) {
+      $scope.globalResult = isExpression(val) ? '= ' + processResult(result) : '';
+      $scope.amountResult = $filter('formatFiatAmount')(toFiat(result));
+      $scope.alternativeResult = walletService.formatAmount(fromFiat(result) * unitToSatoshi, true);
+    }
+  };
+
+  function processResult(val) {
+    if ($scope.showAlternativeAmount)
+      return $filter('formatFiatAmount')(val);
+    else
+      return walletService.formatAmount(val.toFixed(unitDecimals) * unitToSatoshi, true);
+  };
+
+  function fromFiat(val) {
+    return parseFloat((rateService.fromFiat(val, $scope.alternativeIsoCode) * satToUnit).toFixed(unitDecimals), 10);
+  };
+
+  function toFiat(val) {
+    return parseFloat((rateService.toFiat(val * unitToSatoshi, $scope.alternativeIsoCode)).toFixed(2), 10);
+  };
+
+  function evaluate(val) {
+    var result;
+    try {
+      result = $scope.$eval(val);
+    } catch (e) {
+      return 0;
+    }
+    if (!lodash.isFinite(result)) return 0;
+    return result;
+  };
+
+  function format(val) {
+    var result = val.toString();
+
+    if (isOperator(lodash.last(val)))
+      result = result.slice(0, -1);
+
+    return result.replace('x', '*');
+  };
+
+  $scope.finish = function() {
+    var _amount = evaluate(format($scope.amount));
+    var amount = $scope.showAlternativeAmount ? fromFiat(_amount).toFixed(unitDecimals) : _amount.toFixed(unitDecimals);
+
+    $state.transitionTo('confirm', {
+      toAmount:amount * unitToSatoshi,
+      toAddress: $scope.toAddress,
+      toName: $scope.toName,
+    });
+  };
+
+  $scope.cancel = function() {
+    $state.transitionTo('tabs.send');
+  };
+});