first comit

venv/lib/python3.10/site-packages/jsignature/forms.py

@@ -0,0 +1,30 @@
+"""
+    Provides a django form field to handle a signature capture field with
+    with jSignature jQuery plugin
+"""
+import json
+from django.forms.fields import Field
+from django.core import validators
+from django.core.exceptions import ValidationError
+from .widgets import JSignatureWidget
+
+JSIGNATURE_EMPTY_VALUES = validators.EMPTY_VALUES + ('[]', )
+
+
+class JSignatureField(Field):
+    """
+    A field handling a signature capture field with with jSignature
+    """
+    widget = JSignatureWidget()
+
+    def to_python(self, value):
+        """
+        Validates that the input can be red as a JSON object.
+        Returns a Python list (JSON object unserialized).
+        """
+        if value in JSIGNATURE_EMPTY_VALUES:
+            return None
+        try:
+            return json.loads(value)
+        except ValueError:
+            raise ValidationError('Invalid JSON format.')