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                /*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * https://github.com/legalthings/signature-pad-angular  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Copyright (c) 2015 ; Licensed MIT  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                angular.module('signature', []); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                angular.module('signature').directive('signaturePad', ['$interval', '$timeout', '$window', | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  function ($interval, $timeout, $window) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    'use strict';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    var signaturePad, element, EMPTY_IMAGE = 'data:image/png;base64,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';  | 
            
                            
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                    return { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      restrict: 'EA',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      replace: true,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      template: '<div class="signature" style="width: 100%; max-width:{{width}}px; height: 100%; max-height:{{height}}px;"><canvas style="display: block; margin: 0 auto;" ng-mouseup="onMouseup()" ng-mousedown="notifyDrawing({ drawing: true })"></canvas></div>', | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      scope: { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        accept: '=?',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        clear: '=?',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        disabled: '=?',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        dataurl: '=?',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        height: '@',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        width: '@',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        notifyDrawing: '&onDrawing',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      },  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      controller: [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        '$scope',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        function ($scope) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                          $scope.accept = function () { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                              isEmpty: $scope.dataurl === EMPTY_IMAGE,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                              dataUrl: $scope.dataurl  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            };  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                          };  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                          $scope.onMouseup = function () { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $scope.updateModel();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // notify that drawing has ended  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $scope.notifyDrawing({ drawing: false }); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                          };  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                          $scope.updateModel = function () { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            /*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             defer handling mouseup event until $scope.signaturePad handles  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             first the same event  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    49
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                             */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    50
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                            $timeout(function () { | 
            
            
                                                                        
                            
            
                                    
            
            
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                              $scope.dataurl = $scope.signaturePad.isEmpty() ? EMPTY_IMAGE : $scope.signaturePad.toDataURL();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            });  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                          };  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                          $scope.clear = function () { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $scope.signaturePad.clear();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $scope.dataurl = EMPTY_IMAGE;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                          };  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                          $scope.$watch("dataurl", function (dataUrl) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (!dataUrl || $scope.signaturePad.toDataURL() === dataUrl) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                              return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $scope.setDataUrl(dataUrl);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                          });  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      ],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      link: function (scope, element, attrs) { | 
            
                            
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                        var canvas = element.find('canvas')[0]; | 
            
                            
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                        var parent = canvas.parentElement;  | 
            
                            
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                        var scale = 0;  | 
            
                            
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                        var ctx = canvas.getContext('2d'); | 
            
                            
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                        var width = parseInt(scope.width, 10);  | 
            
                            
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                        var height = parseInt(scope.height, 10);  | 
            
                            
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                        canvas.width = width;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        canvas.height = height;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        scope.signaturePad = new SignaturePad(canvas);  | 
            
                            
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                        scope.setDataUrl = function(dataUrl) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                          var ratio = Math.max(window.devicePixelRatio || 1, 1);  | 
            
                            
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                          ctx.setTransform(1, 0, 0, 1, 0, 0);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    87
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                          ctx.scale(ratio, ratio);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    89
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                          scope.signaturePad.clear();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    90
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                          scope.signaturePad.fromDataURL(dataUrl);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    92
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                          $timeout(function () { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    93
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                            ctx.setTransform(1, 0, 0, 1, 0, 0);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    94
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                            ctx.scale(1 / scale, 1 / scale);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    95
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                          });  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        };  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    98
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                        scope.$watch('disabled', function (val) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    99
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                            val ? scope.signaturePad.off() : scope.signaturePad.on();  | 
            
                            
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                    100
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                        });  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                          | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    102
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                        var calculateScale = function() { | 
            
                            
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                    103
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                          var scaleWidth = Math.min(parent.clientWidth / width, 1);  | 
            
                            
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                    104
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                          var scaleHeight = Math.min(parent.clientHeight / height, 1);  | 
            
                            
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                    105
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                    106
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                          var newScale = Math.min(scaleWidth, scaleHeight);  | 
            
                            
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                    107
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                    108
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                          if (newScale === scale) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    109
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                            return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    110
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                          }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    111
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                    112
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                          var newWidth = width * newScale;  | 
            
                            
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                    113
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                          var newHeight = height * newScale;  | 
            
                            
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                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    114
                 | 
                                    
                                                     | 
                
                 | 
                          canvas.style.height = Math.round(newHeight) + "px";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    115
                 | 
                                    
                                                     | 
                
                 | 
                          canvas.style.width = Math.round(newWidth) + "px";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    116
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    117
                 | 
                                    
                                                     | 
                
                 | 
                          scale = newScale;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    118
                 | 
                                    
                                                     | 
                
                 | 
                          ctx.setTransform(1, 0, 0, 1, 0, 0);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    119
                 | 
                                    
                                                     | 
                
                 | 
                          ctx.scale(1 / scale, 1 / scale);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    120
                 | 
                                    
                                                     | 
                
                 | 
                        };  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    121
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    122
                 | 
                                    
                                                     | 
                
                 | 
                        var resizeIH = $interval(calculateScale, 200);  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    123
                 | 
                                    
                                                     | 
                
                 | 
                        scope.$on('$destroy', function () { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    124
                 | 
                                    
                                                     | 
                
                 | 
                          $interval.cancel(resizeIH);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    125
                 | 
                                    
                                                     | 
                
                 | 
                          resizeIH = null;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    126
                 | 
                                    
                                                     | 
                
                 | 
                        });  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    127
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    128
                 | 
                                    
                                                     | 
                
                 | 
                        angular.element($window).bind('resize', calculateScale); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    129
                 | 
                                    
                                                     | 
                
                 | 
                        scope.$on('$destroy', function () { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    130
                 | 
                                    
                                                     | 
                
                 | 
                          angular.element($window).unbind('resize', calculateScale); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    131
                 | 
                                    
                                                     | 
                
                 | 
                        });  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    132
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    133
                 | 
                                    
                                                     | 
                
                 | 
                        calculateScale();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    134
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                        element.on('touchstart', onTouchstart); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    136
                 | 
                                    
                                                     | 
                
                 | 
                        element.on('touchend', onTouchend); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    137
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    138
                 | 
                                    
                                                     | 
                
                 | 
                        function onTouchstart(event) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    139
                 | 
                                    
                                                     | 
                
                 | 
                          scope.$apply(function () { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    140
                 | 
                                    
                                                     | 
                
                 | 
                            // notify that drawing has started  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    141
                 | 
                                    
                                                     | 
                
                 | 
                            scope.notifyDrawing({ drawing: true }); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    142
                 | 
                                    
                                                     | 
                
                 | 
                          });  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    143
                 | 
                                    
                                                     | 
                
                 | 
                          event.preventDefault();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    144
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    145
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    146
                 | 
                                    
                                                     | 
                
                 | 
                        function onTouchend(event) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    147
                 | 
                                    
                                                     | 
                
                 | 
                          scope.$apply(function () { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    148
                 | 
                                    
                                                     | 
                
                 | 
                            // updateModel  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    149
                 | 
                                    
                                                     | 
                
                 | 
                            scope.updateModel();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    150
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    151
                 | 
                                    
                                                     | 
                
                 | 
                            // notify that drawing has ended  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    152
                 | 
                                    
                                                     | 
                
                 | 
                            scope.notifyDrawing({ drawing: false }); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    153
                 | 
                                    
                                                     | 
                
                 | 
                          });  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    154
                 | 
                                    
                                                     | 
                
                 | 
                          event.preventDefault();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    155
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    156
                 | 
                                    
                                                     | 
                
                 | 
                      }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    157
                 | 
                                    
                                                     | 
                
                 | 
                    };  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    158
                 | 
                                    
                                                     | 
                
                 | 
                  }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    159
                 | 
                                    
                                                     | 
                
                 | 
                ]);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    160
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    161
                 | 
                                    
                                                     | 
                
                 | 
                // Backward compatibility  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    162
                 | 
                                    
                                                     | 
                
                 | 
                angular.module('ngSignaturePad', ['signature']); | 
            
            
                                                        
            
                                    
            
            
                | 
                    163
                 | 
                                    
                                                     | 
                
                 | 
                 |