directives.js

(
  function () {
    angular
    .module("multiSigWeb")
    .directive('convertToNumber', function () {
      return {
        require: 'ngModel',
        link: function (scope, element, attrs, ngModel) {
          ngModel.$parsers.push(function (val) {
            return val !== null ? parseInt(val, 10) : null;
          });
          ngModel.$formatters.push(function (val) {
            return val !== null ? '' + val : null;
          });
        }
      };
    })
    .directive('disabledIfNoAccounts', function (Web3Service) {
      return {
        link: function(scope, element, attrs){
          Web3Service.webInitialized.then(
            function () {
              scope.$watch(function(){
                if(Web3Service.coinbase) {
                  element.removeAttr('disabled');
                }
                else {
                  attrs.$set('disabled', 'disabled');
                }
              });
            }
          );
        }
      };
    })
    .directive('disabledIfNoAccountsOrWalletAvailable', function (Web3Service, Wallet) {
      // Disables an element when no accounts are setted
      // or a wallet has not been created on the current network
      return {
        link: function(scope, element, attrs){

          scope.$watch(
            function () {
              return scope.wallet.maxWithdraw;
            },
            function () {
              Wallet.initParams().then(
                function () {
                  if (scope.wallet && scope.wallet.isOnChain == true) {
                    element.removeAttr('disabled');
                  }
                  else if (attrs.disabledIfNoAccountsOrWalletAvailable) {
                    var address = attrs.disabledIfNoAccountsOrWalletAvailable;
                    Wallet.getOwners(
                      address,
                      function (e, owners) {
                        if (!e && owners.length > 0 && Web3Service.coinbase) {
                          element.removeAttr('disabled');
                        }
                        else {
                          attrs.$set('disabled', 'disabled');
                        }
                      }
                    ).call();
                  }
                  else {
                    scope.$watch(function(){
                      if(Web3Service.coinbase) {
                        element.removeAttr('disabled');
                      }
                      else {
                        attrs.$set('disabled', 'disabled');
                      }
                    });
                  }
                }
              );
            }
          );
        }
      };
    })
    .directive('showHideByConnectivity', function (Connection) {
      return {
        link: function(scope, element, attrs){
          /*
          * The HTML is shown by considering the 'showHideByConnectivity'
          * attribute and looking up at the Connection.isConnected variable.
          * Admitted attributes are 'online|offline'.
          */
          scope.$watch(function(){
              if(!Connection.isConnected && attrs.showHideByConnectivity=='online') {
                element.css("display", "none");
              }
              else if(Connection.isConnected && attrs.showHideByConnectivity=='offline') {
                element.css("display", "none");
              }
              else {
                element.css("display", "");
              }
            });

        }
      };
    })
    .directive('showHideByFactoryStatus', function (Web3Service, Connection) {
      return {
        link: function(scope, element, attrs){
          /*
          * The HTML is shown by considering the 'showHideByConnectivity'
          * attribute and looking up at the Connection.isConnected variable.
          * Admitted attributes are 'online|offline'.
          */
          scope.$watch(function (){
            return txDefault.walletFactoryAddress;
          },
          function(){
            var address = Object.assign({}, txDefault, JSON.parse(localStorage.getItem("userConfig"))).walletFactoryAddress;
            if (address && web3.isAddress(address)) {
              Web3Service.web3.eth.getCode(address, function (e, factory) {
                if (!Connection.isConnected) {
                  element.css("display", "none");
                }
                else if (factory && factory.length > 100) {
                  if (attrs.showHideByFactoryStatus=='online') {
                    element.css("display", "");
                  }
                  else {
                    element.css("display", "none");
                  }
                }
                else {
                  if (attrs.showHideByFactoryStatus=='offline') {
                    element.css("display", "");
                  }
                  else {
                    element.css("display", "none");
                  }
                }
              });
            }
            else {
              if (attrs.showHideByFactoryStatus=='online') {
                element.css("display", "none");
              }
            }
          });

        }
      };
    })
    .directive('valueOrDashByConnectivity', function (Connection) {
      return {
        link: function(scope, element, attrs) {
          /*
          * The value is shown by considering the
          * Connection.isConnected variable.
          */
          scope.$watch(function () {
            if (scope.wallet && !scope.wallet.isOnChain) {
              element.html("");
            }
            else if (!Connection.isConnected) {
              element.html("-");
            }
            else {
              element.html(attrs.valueOrDashByConnectivity);
            }
          });

        }
      };
    })
    .directive('alertEventDescription', function () {
      return {
        link: function(scope, element, attrs) {
          if (attrs.alertEventDescription == 'Submission') {
            element.html('Submission: a new multisig transaction is submitted');
          }
          else if (attrs.alertEventDescription == 'Confirmation') {
            element.html('Confirmation: a multisig transaction is confirmed');
          }
          else if (attrs.alertEventDescription == 'Revocation') {
            element.html('Revocation: a multisig transaction confirmation is revoked');
          }
          else if (attrs.alertEventDescription == 'Execution') {
            element.html('Execution: a multisig transaction is executed successfully');
          }
          else if (attrs.alertEventDescription == 'Execution Failure') {
            element.html('Execution failure: a multisig transaction is executed unsuccessfully');
          }
          else if (attrs.alertEventDescription == 'Deposit') {
            element.html('Deposit: an ether deposit was made');
          }
          else if (attrs.alertEventDescription == 'Owner Addition') {
            element.html('Owner addition: a new multisgi owner was added');
          }
          else if (attrs.alertEventDescription == 'Owner Removal') {
            element.html('Owner removal: a multisig owner was removed');
          }
          else if (attrs.alertEventDescription == 'Requirement Change') {
            element.html('Requirement change: number of required confirmations was changed');
          }
          else if (attrs.alertEventDescription == 'Daily Limit Change') {
            element.html('Daily limit change: amount for daily withdrawal was changed');
          }
          else {
            element.html(attrs.alertEventDescription);
          }
        }
      };
    })
    .directive('match', function($parse) {
      return {
        require: 'ngModel',
        link: function(scope, elem, attrs, ctrl) {
          scope.$watch(function() {
            return $parse(attrs.match)(scope) === ctrl.$modelValue;
          }, function(currentValue) {
            ctrl.$setValidity('mismatch', currentValue);
          });
        }
      };
    })
    .directive('providerList', function($parse) {
      return {
        restrict: 'E',
        template: '<select class="form-control" name="web3-wallet" id="web3-wallet"' +
        'ng-options="model.value for model in items track by model.name"' +
        'ng-model="selectedItem"' +
        'ng-change="changeEvent()"></select>',
        scope: {
          defaultItem: "=",
          changeEvent: "@",
          selectedItem: "="
        },
        replace: true,
        link: function(scope, element, attrs) {
          // Filter items
          scope.items = [];
          if (isElectron) {
            scope.items.push(
              {
                name: 'ledger',
                value: 'Ledger Wallet',
              },
              {
                name: 'lightwallet',
                value: 'Light Wallet',
              },
              {
                name: 'remotenode',
                value: 'Remote node',
              }
            );
          }
          else {
              scope.items.push(
                {
                  name: 'injected',
                  value: 'Default (MetaMask, Mist, Parity ...)',
                },
                {
                  name: 'ledger',
                  value: 'Ledger Wallet',
                },
                {
                  name: 'remotenode',
                  value: 'Remote node',
                }
              );
          }


          if (scope.defaultItem) {
            for(var x in scope.items) {
              if (scope.items[x].name == scope.defaultItem) {
                scope.selectedItem = scope.items[x];
                break;
              }
            }
          }
          else {
              scope.selectedItem = null;
          }          

          scope.changeEvent = function() {
            scope.$parent.config.wallet = scope.selectedItem.name;
            if (attrs.onChangeFunction !== undefined) {
              var func = scope.$parent[attrs.onChangeFunction];
              func();
            }            
          };
        }
      };
    })
    .directive('editableSelect', function() {
      return {
        restrict: 'E',
        require: '^ngModel',
        scope: {
          ngModel: '=',
          options: '=',          
          other: '@'
        },
        replace: true,
        templateUrl: function (element, attrs) {
            return 'partials/' + attrs.templateUrl;
        },
        link: function(scope, element, attrs) {

          function isDisabled () {
            if (scope.ngModel) {
              return scope.ngModel.name == scope.other ? false : true;
            }
            return true;
          }

          scope.isDisabled = isDisabled();

          // Wallet factory contract
          if (attrs.type && attrs.type == 'contract-address') {
            scope.click = function(option) {
              if (option.address == undefined) {
                scope.ngModel = {name: option, address: option};
              }
              else {
                scope.ngModel = option;
              }

              scope.isDisabled = !scope.other || scope.other !== option;
              if (!scope.isDisabled) {
                element[0].querySelector('.editable-select').focus();
              }
            };

            var unwatch = scope.$watch('ngModel', function(val) {
              scope.isDisabled = isDisabled();
              if (!scope.isDisabled) {
                if (val.address) {
                  scope.other = {'name': val.name, 'address': val.address};
                }
                else {
                  scope.other = {'name': val, 'address': val};
                }
              }
            });

            scope.$on('$destroy', unwatch);
          }
          else {
            scope.click = function(option) {
              if (option.url == undefined) {
                scope.ngModel = {name: option, url: option};
              }
              else {
                scope.ngModel = option;
              }

              scope.isDisabled = !scope.other || scope.other !== option;
              if (!scope.isDisabled) {
                element[0].querySelector('.editable-select').focus();
              }

              if (attrs.onChangeFunction !== undefined) {
                var func = scope.$parent[attrs.onChangeFunction];
                func();
              }
            };

            var unwatch = scope.$watch('ngModel', function(val) {
              scope.isDisabled = isDisabled();
              if (!scope.isDisabled) {
                if (val.url) {
                  scope.other = {'name': val.name, 'url': val.url};
                }
                else {
                  scope.other = {'name': val, 'url': val};
                }
              }
            });

            scope.$on('$destroy', unwatch);
          }
        }
      };
    })
    .directive('callFuncOnKeyEnter', function() {
      return function(scope, element, attrs) {
        element.bind("keydown keypress", function(event) {
          var keyCode = event.which || event.keyCode;
          // If enter key is pressed
          if (keyCode === 13 && element.val().length >= attrs.ngMinlength) {
            scope.$apply(function() {
              // Evaluate the expression
              scope.$eval(attrs.callFuncOnKeyEnter);
            });
            event.preventDefault();
          }
        });
      };
    })
    .directive('disabledIfInvalidAddress', function () {
      // Disables an element until the ng-model passed to
      // the directive is valid
      return {
        link: function(scope, element, attrs){
          scope.ngDisabled = attrs.ngDisabled;
          var isAddressValid = false;

          var unwatchAddress = scope.$watch(function() {
              return attrs.disabledIfInvalidAddress;
            },
            function() {
              // Do more checks
              if (attrs.disabledIfInvalidAddress.length < 42) {
                isAddressValid = false;
              }
              else if (web3.isAddress(attrs.disabledIfInvalidAddress)) {
                // Address valid (0x0........)
                isAddressValid = true;
              }
              else {
                isAddressValid = false;
              }

              // Set form as invalid
              if (!isAddressValid) {
                scope.form.$invalid = true;
              }
            }
          );

          var unwatchForm = scope.$watch(function() {
              return scope.form.$invalid;
            },
            function() {
              // Set form as invalid
              if (!isAddressValid) {
                scope.form.$invalid = true;
              }
            }
          );

          scope.$on('$destroy', unwatchAddress);
          scope.$on('$destroy', unwatchForm);
        }
      };
    });
  }
)();