Release 0.10

Fix jquery dependency for Django >2.2 version

.gitignore

@@ -1,3 +1,8 @@
 *.pyc
 .coverage
 htmlcov
+*.egg-info
+.tox
+example.db
+/dist
+/build

.travis.yml

@@ -1,42 +1,46 @@
 language: python
 
-python:
-  - 2.6
-  - 2.7
-  - 3.2
-  - 3.3
-  - 3.4
+matrix:
+  fast_finish: true
+  allow_failures:
+    - env: DJANGO=master
+  include:
+    - python: 2.7
+      env: DJANGO=1.11
 
-env:
-  - DJANGO_VERSION=1.4 MODULE=jsignature
-  - DJANGO_VERSION=1.5 MODULE=jsignature
-  - DJANGO_VERSION=1.6 MODULE=jsignature.tests
-  - DJANGO_VERSION=1.7 MODULE=jsignature.tests
+    - python: 3.5
+      env: DJANGO=1.11
+    - python: 3.5
+      env: DJANGO=2.2
+
+    - python: 3.6
+      env: DJANGO=1.11
+    - python: 3.6
+      env: DJANGO=2.2
+    - python: 3.6
+      env: DJANGO=3.0
+    - python: 3.6
+      env: DJANGO=master
+
+    - python: 3.7
+      env: DJANGO=2.2
+    - python: 3.7
+      env: DJANGO=3.0
+    - python: 3.7
+      env: DJANGO=master
+
+
+    - python: 3.8
+      env: DJANGO=2.2
+    - python: 3.8
+      env: DJANGO=3.0
+    - python: 3.8
+      env: DJANGO=master
 
 install:
-  - pip install -r requirements.txt --use-mirrors
-  - pip install -q Django==$DJANGO_VERSION --use-mirrors
-  - pip install coverage
-
-script: coverage run quicktest.py $MODULE
-
+  - pip install tox tox-travis
+script:
+  - tox
 after_success:
- - pip install coveralls
- - coveralls
-
-# We need to exclude old versions of Django for tests with python 3.
-# We need to exclude old versions of Python for tests with Django >= 1.7.
-matrix:
-    exclude:
-        - python: 3.2
-          env: DJANGO_VERSION=1.4 MODULE=jsignature
-        - python: 3.3
-          env: DJANGO_VERSION=1.4 MODULE=jsignature
-        - python: 3.4
-          env: DJANGO_VERSION=1.4 MODULE=jsignature
-        - python: 3.4
-          env: DJANGO_VERSION=1.5 MODULE=jsignature
-        - python: 3.4
-          env: DJANGO_VERSION=1.6 MODULE=jsignature.tests
-        - python: 2.6
-          env: DJANGO_VERSION=1.7 MODULE=jsignature.tests
+  - pip install coveralls
+  - coveralls

CHANGES

@@ -2,6 +2,25 @@
 CHANGELOG
 =========
 
+0.10 (2020-07-26)
+==================
+
+** New **
+
+- Add template filter to easily render a signature structure as base64 url.
+- Add a full example of front-office usage.
+
+
+0.9 (2020-04-18)
+==================
+
+** New **
+
+- Add support for Django 2+
+- Drop support for Django<1.11
+- Add a ``JSIGNATURE_JQUERY`` settings to handle usage in admin in Django 2.1+
+
+
 0.8 (2014-12-04)
 ==================
 

README.rst

@@ -5,28 +5,32 @@ It provides:
 * A form field and a form widget to handle jquery plugin through a Django form;
 * A model field to store a captured signature;
 * A mixin adding two fields (signature / signature_date) in any of your Django models.
+* A template filter to render signatures as base64 image urls.
+
+.. image:: https://img.shields.io/pypi/v/django-jsignature.svg
+    :target: https://pypi.python.org/pypi/django-jsignature/
+    :alt: Latest PyPI version
 
 .. image:: https://travis-ci.org/fle/django-jsignature.png?branch=master
-        :target: https://travis-ci.org/fle/django-jsignature
+    :target: https://travis-ci.org/fle/django-jsignature
+    :alt: Build status
 
 .. image:: https://coveralls.io/repos/fle/django-jsignature/badge.png
-       :target: https://coveralls.io/r/fle/django-jsignature
-
+    :target: https://coveralls.io/r/fle/django-jsignature
+    :alt: Coverage status
 
 .. image:: https://github.com/fle/django-jsignature/blob/master/screen.png
 
 ==================
-INSTALL
+Installation
 ==================
 
-For now:
-
 ::
 
     pip install django-jsignature
 
 ==================
-USAGE
+Usage
 ==================
 
 * Add ``jsignature`` to your ``INSTALLED_APPS``:
@@ -35,55 +39,54 @@ USAGE
 
     # settings.py
     INSTALLED_APPS = (
-    ...
-    'jsignature',
+        ...
+        'jsignature',
     )
 
-* Use provided form field and widget:
+* Use provided model field (for easy storage):
 
 ::
 
-    # forms.py
-    from django import forms
-    from jsignature.forms import JSignatureField
+    # models.py
+    from django.db import models
+    from jsignature.fields import JSignatureField
 
-    class SignatureForm(forms.Form):
+    class SignatureModel(models.Model):
         signature = JSignatureField()
 
-* In your template
+* In your form template
 
 ::
 
     {{ form.media }}
-    <form action="." method="POST">
-        {% for field in form %}
-            {{ field.label_tag }}
-            {{ field }}
-        {% endfor %}
-        <input type="submit" value="Save"/>
+    <form action="" method="post">
+        {{ form }}
+        <input type="submit" value="Save" />
         {% csrf_token %}
     </form>
 
-* Render image after form validation:
+* Render image from db value in your display template:
 
 ::
 
-    # views.py
-    from jsignature.utils import draw_signature
-    from myapp.forms import SignatureForm
+    {# yourtemplate.html #}
+    {% load jsignature_filters %}
 
-    def my_view(request):
-        form = SignatureForm(request.POST or None)
-        if form.is_valid():
-            signature = form.cleaned_data.get('signature')
-            if signature:
-                # as an image
-                signature_picture = draw_signature(signature)
-                # or as a file
-                signature_file_path = draw_signature(signature, as_file=True)
+    <img src="{{ obj.signature|signature_base64 }}" alt="{{ obj }}" />
+
+
+*   By default, jSignature is made to work outside of admin, requiring that
+    you include the jQuery library in your ``<head>``.
+
+    If you want to use jSignature in the Django admin site, set the
+    ``JSIGNATURE_JQUERY`` setting to ``admin``. Otherwise if set to any url
+    pointing to jQuery, it will be automatically included.
+
+    It is strongly suggested to take example from ``example_project``, which is
+    `located in this repo <https://github.com/fle/django-jsignature/tree/master/example_project>`_
 
 ==================
-CUSTOMIZATION
+Customization
 ==================
 
 JSignature plugin options are available in python:
@@ -118,10 +121,11 @@ Available settings are:
 * ``JSIGNATURE_RESET_BUTTON`` (ResetButton)
 
 ==================
-IN YOUR MODELS
+In your models
 ==================
 
-If you wan to store signatures, provided mixin gives a ``signature`` and a ``signature_date`` that update themselves:
+If you want to store signatures easily, a provided mixin gives a ``signature``
+and a ``signature_date`` that update themselves:
 
 ::
 
@@ -133,10 +137,69 @@ If you wan to store signatures, provided mixin gives a ``signature`` and a ``sig
 
 
 ==================
-AUTHORS
+In your forms
 ==================
 
-    * Florent Lebreton <florent.lebreton@makina-corpus.com>
+* If you need more precise handling of the form field, you can use it directly:
+
+::
+
+    # forms.py
+    from django import forms
+    from jsignature.forms import JSignatureField
+
+    class SignatureForm(forms.Form):
+        signature = JSignatureField()
+
+
+* And upon saving, have direct access to the image with ``draw_signature()``
+
+::
+
+    # views.py
+    from jsignature.utils import draw_signature
+    from myapp.forms import SignatureForm
+
+    def my_view(request):
+        form = SignatureForm(request.POST or None)
+        if form.is_valid():
+            signature = form.cleaned_data.get('signature')
+            if signature:
+                # as an image
+                signature_picture = draw_signature(signature)
+                # or as a file
+                signature_file_path = draw_signature(signature, as_file=True)
+
+
+==================
+Example project
+==================
+
+If you want to have a demo of this package, just use the example project:
+
+::
+
+    git clone https://github.com/fle/django-jsignature.git
+    cd django-jsignature
+    python -m venv venv
+    source venv/bin/activate
+    pip install -r requirements.txt
+    pip install -e .
+    cd example_project
+    ./manage.py migrate
+    ./manage.py createsuperuser
+
+Fill the user info, launch django with ``./manage.py runserver`` and head over
+to `http://127.0.0.1:8000/ <http://127.0.0.1:8000/>`_, you can also
+`login to the admin <http://127.0.0.1:8000/admin>`_ with the credentials your
+provided.
+
+==================
+Authors
+==================
+
+    * Florent Lebreton <florent.lebreton@makina-corpus.com> (original author)
+    * Sébastien Corbin <sebastien.corbin@makina-corpus.com> (maintainer)
 
 |makinacom|_
 

example_project/admin.py

@@ -0,0 +1,5 @@
+from django.contrib import admin
+
+from .models import ExampleModel
+
+admin.site.register(ExampleModel)

example_project/manage.py

@@ -0,0 +1,10 @@
+#!/usr/bin/env python
+import os
+import sys
+
+if __name__ == "__main__":
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "settings")
+
+    from django.core.management import execute_from_command_line
+
+    execute_from_command_line(sys.argv)

example_project/migrations/0001_initial.py

@@ -0,0 +1,26 @@
+# Generated by Django 3.0.5 on 2020-04-18 12:18
+
+from django.db import migrations, models
+import jsignature.fields
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ExampleModel',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('signature', jsignature.fields.JSignatureField(blank=True, null=True, verbose_name='Signature')),
+                ('signature_date', models.DateTimeField(blank=True, null=True, verbose_name='Signature date')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+    ]

example_project/models.py

@@ -0,0 +1,5 @@
+from jsignature.mixins import JSignatureFieldsMixin
+
+
+class ExampleModel(JSignatureFieldsMixin):
+    pass

example_project/settings.py

@@ -0,0 +1,67 @@
+import os
+
+BASE_DIR = os.path.abspath(os.path.dirname(__file__))
+
+DEBUG = True
+
+ALLOWED_HOSTS = ['*']
+
+MANAGERS = ADMINS = ()
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': os.path.join(BASE_DIR, 'example.db'),
+        'USER': '',
+        'PASSWORD': '',
+        'HOST': '',
+        'PORT': '',
+    }
+}
+
+SECRET_KEY = 'notsosecret'
+
+MIDDLEWARE = (
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+)
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': (
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.template.context_processors.debug",
+                "django.template.context_processors.i18n",
+                "django.template.context_processors.media",
+                "django.template.context_processors.static",
+                "django.template.context_processors.tz",
+                "django.contrib.messages.context_processors.messages",
+            ),
+        },
+    },
+]
+
+ROOT_URLCONF = 'example_project.urls'
+
+INSTALLED_APPS = (
+    'django.contrib.auth',
+    'django.contrib.admin',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.staticfiles',
+    'django.contrib.messages',
+    'jsignature',
+    'example_project',
+)
+
+STATIC_URL = '/static/'
+
+JSIGNATURE_JQUERY = 'admin'

example_project/templates/base.html

@@ -0,0 +1,39 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <!-- Required meta tags -->
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+
+  <!-- Bootstrap CSS -->
+  <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
+
+  <title>Example project</title>
+</head>
+<body>
+<nav class="navbar navbar-expand-lg navbar-light bg-light">
+  <div class="container">
+    <ul class="navbar-nav">
+      <li class="nav-item">
+        <a class="nav-link" href="{% url 'admin:index' %}">Admnistration</a>
+      </li>
+      <li class="nav-item">
+        <a class="nav-link" href="{% url 'list' %}">List</a>
+      </li>
+      <li class="nav-item">
+        <a class="nav-link" href="{% url 'create' %}">Create</a>
+      </li>
+    </ul>
+  </div>
+</nav>
+
+<div class="container">
+    {% block content %}{% endblock %}
+  </div>
+
+  <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
+  <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
+  {% block extra_media %}{% endblock %}
+</body>
+</html>

example_project/templates/example_project/examplemodel_form.html

@@ -0,0 +1,14 @@
+{% extends "base.html" %}
+
+{% block extra_media %}
+  {{ form.media }}
+{% endblock %}
+
+{% block content %}
+  <form action="" method="post">
+    {{ form }}
+    <input type="submit" value="Save" class="btn btn-success" />
+    <a href="{% url 'list' %}" class="btn btn-danger">Cancel</a>
+    {% csrf_token %}
+  </form>
+{% endblock %}

example_project/templates/example_project/examplemodel_list.html

@@ -0,0 +1,24 @@
+{% extends "base.html" %}{% load jsignature_filters %}
+
+{% block content %}
+  <h1>List</h1>
+
+  <ul>
+    {% for obj in object_list %}
+      <li>
+        <dl>
+          <dt>Raw data (from db)</dt>
+          <dd>{{ obj.signature }}</dd>
+          <dt>As image</dt>
+          <dd>
+            <img src="{{ obj.signature|signature_base64 }}" alt="{{ obj }}" />
+            <a href="{% url 'update' obj.pk %}" class="btn btn-primary">
+              Update
+            </a>
+          </dd>
+        </dl>
+      </li>
+    {% endfor %}
+  </ul>
+  <a href="{% url 'create' %}" class="btn btn-primary">Create</a>
+{% endblock %}

example_project/urls.py

@@ -0,0 +1,13 @@
+from __future__ import unicode_literals
+
+from django.contrib import admin
+from django.urls import path
+
+from example_project import views
+
+urlpatterns = [
+    path('', views.ExampleListView.as_view(), name='list'),
+    path('create', views.ExampleCreateView.as_view(), name='create'),
+    path('update/<int:pk>', views.ExampleUpdateView.as_view(), name='update'),
+    path('admin', admin.site.urls),
+]

example_project/views.py

@@ -0,0 +1,20 @@
+from django.urls import reverse_lazy
+from django.views import generic
+
+from example_project.models import ExampleModel
+
+
+class ExampleCreateView(generic.CreateView):
+    model = ExampleModel
+    fields = '__all__'
+    success_url = reverse_lazy('list')
+
+
+class ExampleUpdateView(generic.UpdateView):
+    model = ExampleModel
+    fields = '__all__'
+    success_url = reverse_lazy('list')
+
+
+class ExampleListView(generic.ListView):
+    model = ExampleModel

jsignature/fields.py

@@ -3,17 +3,24 @@
     with jSignature jQuery plugin
 """
 import json
-import six
 
 from django.db import models
 from django.core.exceptions import ValidationError
 
 from .forms import (
     JSignatureField as JSignatureFormField,
-    JSIGNATURE_EMPTY_VALUES)
+    JSIGNATURE_EMPTY_VALUES,
+)
+
+try:
+    from django.utils import six
+
+    string_types = six.string_types
+except ImportError:
+    string_types = str
 
 
-class JSignatureField(six.with_metaclass(models.SubfieldBase, models.Field)):
+class JSignatureField(models.Field):
     """
     A model field handling a signature captured with jSignature
     """
@@ -39,7 +46,7 @@ class JSignatureField(six.with_metaclass(models.SubfieldBase, models.Field)):
     def get_prep_value(self, value):
         if value in JSIGNATURE_EMPTY_VALUES:
             return None
-        elif isinstance(value, six.string_types):
+        elif isinstance(value, string_types):
             return value
         elif isinstance(value, list):
             return json.dumps(value)
@@ -49,9 +56,3 @@ class JSignatureField(six.with_metaclass(models.SubfieldBase, models.Field)):
         defaults = {'form_class': JSignatureFormField}
         defaults.update(kwargs)
         return super(JSignatureField, self).formfield(**defaults)
-
-try:
-    from south.modelsinspector import add_introspection_rules
-    add_introspection_rules([], ["jsignature.fields.JSignatureField"])
-except ImportError:
-    pass

jsignature/mixins.py

@@ -2,6 +2,7 @@
     A django mixin providing fields to store a signature captured
     with jSignature jQuery plugin
 """
+import json
 from datetime import datetime
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
@@ -28,7 +29,7 @@ class JSignatureFieldsMixin(models.Model):
         original = not is_new and self.__class__.objects.get(pk=self.pk)
 
         if self.signature:
-            if is_new or self.signature != original.signature:
+            if is_new or json.dumps(self.signature) != original.signature:
                 self.signature_date = datetime.now()
         else:
             self.signature_date = None

jsignature/settings.py

@@ -17,6 +17,9 @@ JSIGNATURE_UNDO_BUTTON = getattr(
 JSIGNATURE_RESET_BUTTON = getattr(
     settings, 'JSIGNATURE_RESET_BUTTON', True)
 
+JSIGNATURE_JQUERY = getattr(
+    settings, 'JSIGNATURE_JQUERY', 'custom')
+
 JSIGNATURE_DEFAULT_CONFIG = {
     'width': JSIGNATURE_WIDTH,
     'height': JSIGNATURE_HEIGHT,

jsignature/static/js/django_jsignature.js

@@ -1,21 +1,22 @@
-$(document).ready(function() {
-  $(".jsign-container").each(function(){
-    var config = $(this).data('config');
-    var value = $(this).data('initial-value');
-    $(this).jSignature(config);
-    $(this).jSignature("setData", value, "native");
-  });
+(function($) {
+  $(document).ready(function() {
+    $(".jsign-container").each(function(){
+      var config = $(this).data('config');
+      var value = $(this).data('initial-value');
+      $(this).jSignature(config);
+      $(this).jSignature("setData", value, "native");
+    });
 
-  /* Each time user is done drawing a stroke, update value of hidden input */
-  $(".jsign-container").on("change", function(e) {
-    var jSignature_data = $(this).jSignature('getData', 'native');
-    var django_field_name = $(this).attr('id').split(/_(.+)/)[1];
-    $('#id_' + django_field_name).val(JSON.stringify(jSignature_data));
-  });
+    /* Each time user is done drawing a stroke, update value of hidden input */
+    $(".jsign-container").on("change", function(e) {
+      var jSignature_data = $(this).jSignature('getData', 'native');
+      var django_field_name = $(this).attr('id').split(/_(.+)/)[1];
+      $('#id_' + django_field_name).val(JSON.stringify(jSignature_data));
+    });
 
-  /* Bind clear button */
-  $(".jsign-wrapper input").on("click", function(e) {
-    $(this).siblings('.jsign-container').jSignature('reset');
+    /* Bind clear button */
+    $(".jsign-wrapper input").on("click", function(e) {
+      $(this).siblings('.jsign-container').jSignature('reset');
+    });
   });
-
-});
+})(jQuery || django.jQuery)

jsignature/static/js/jSignature.min.js

@@ -1,9 +1,14 @@
 /*
-
-jSignature v2 "2013-08-26T07:00" "commit ID 986265299fecdb0f5b20acce92319220809707bf"
+ 
+jSignature v2 "2012-11-01T22:48" "commit ID 1c15dfafecc75925c3b7d529356a558b59220edb"
 Copyright (c) 2012 Willow Systems Corp http://willow-systems.com
 Copyright (c) 2010 Brinley Ang http://www.unbolt.net
-MIT License <http://www.opensource.org/licenses/mit-license.php>
+MIT License <http://www.opensource.org/licenses/mit-license.php> 
+
+
+Simplify.js BSD 
+(c) 2012, Vladimir Agafonkin
+mourner.github.com/simplify-js
 
 
 base64 encoder
@@ -26,54 +31,47 @@ jSignature v2 jSignature's custom "base30" format export and import plugins.
 
 jSignature v2 SVG export plugin.
 
-
-Simplify.js BSD
-(c) 2012, Vladimir Agafonkin
-mourner.github.com/simplify-js
-
 */
-(function(){function r(b){var a,e=b.css("color"),d;b=b[0];for(var q=!1;b&&!d&&!q;){try{a=$(b).css("background-color")}catch(c){a="transparent"}"transparent"!==a&&"rgba(0, 0, 0, 0)"!==a&&(d=a);q=b.body;b=b.parentNode}b=/rgb[a]*\((\d+),\s*(\d+),\s*(\d+)/;var q=/#([AaBbCcDdEeFf\d]{2})([AaBbCcDdEeFf\d]{2})([AaBbCcDdEeFf\d]{2})/,k;a=void 0;(a=e.match(b))?k={r:parseInt(a[1],10),g:parseInt(a[2],10),b:parseInt(a[3],10)}:(a=e.match(q))&&(k={r:parseInt(a[1],16),g:parseInt(a[2],16),b:parseInt(a[3],16)});var n;
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+c=e,l,i=function(){d.publish(c+".parentresized")};$(p).bind("resize."+c,function(){l&&clearTimeout(l);l=setTimeout(i,500)}).bind("mouseup."+c,function(){d.publish(c+".windowmouseup")});var w={},A={"default":function(){return this.toDataURL()},"native":function(b){return b},image:function(){var b=this.toDataURL();if("string"===typeof b&&4<b.length&&"data:"===b.slice(0,5)&&-1!==b.indexOf(",")){var a=b.indexOf(",");return[b.slice(5,a),b.substr(a+1)]}return[]}},n={"native":function(b,a,c){c(b)},image:h,
+"image/png;base64":h,"image/jpeg;base64":h,"image/jpg;base64":h},B={"export":A,"import":n,instance:w},C={init:function(b){return this.each(function(){var a,c=!1;for(a=this.parentNode;a&&!c;)c=a.body,a=a.parentNode;!c||new r(this,b,w)})},getSettings:function(){return this.find("canvas."+e).add(this.filter("canvas."+e)).data(e+".this").settings},clear:a,reset:a,addPlugin:function(b,a,c){B.hasOwnProperty(b)&&(B[b][a]=c);return this},listPlugins:function(b){var a=[];if(B.hasOwnProperty(b)){var b=B[b],
+c;for(c in b)b.hasOwnProperty(c)&&a.push(c)}return a},getData:function(b){var a=this.find("canvas."+e).add(this.filter("canvas."+e));void 0===b&&(b="default");if(0!==a.length&&A.hasOwnProperty(b))return A[b].call(a.get(0),a.data(e+".data"))},importData:f,setData:f,globalEvents:function(){return d},events:function(){return this.find("canvas."+e).add(this.filter("canvas."+e)).data(e+".this").events}};$.fn[e]=function(b){if(!b||"object"===typeof b)return C.init.apply(this,arguments);if("string"===typeof b&&
+C[b])return C[b].apply(this,Array.prototype.slice.call(arguments,1));$.error("Method "+String(b)+" does not exist on jQuery."+e)}})();
+(function(){$.fn.jSignature("addPlugin","instance","UndoButton",function(q){this.events.subscribe("jSignature.attachingEventHandlers",function(){if(this.settings[q]){var m=this.settings[q];"function"!==typeof m&&(m=function(){var e=$('<input type="button" value="Undo last stroke" style="position:absolute;display:none;margin:0 !important;top:auto" />').appendTo(this.$controlbarLower),k=e.width();e.css("left",Math.round((this.canvas.width-k)/2));k!==e.width()&&e.width(k);return e});var k=m.call(this),
+t=this;t.events.subscribe("jSignature.change",function(){t.dataEngine.data.length?k.show():k.hide()});var r=this,e=(this.events.topics.hasOwnProperty("jSignature.undo")?q:"jSignature")+".undo";k.bind("click",function(){r.events.publish(e)});r.events.subscribe(e,function(){var e=r.dataEngine.data;e.length&&(e.pop(),r.resetCanvas(e))})}})})})();
+(function(){for(var q={},m={},k="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWX".split(""),t=k.length/2,r=t-1;-1<r;r--)q[k[r]]=k[r+t],m[k[r+t]]=k[r];var e=function(e){for(var e=e.split(""),h=e.length,a=1;a<h;a++)e[a]=q[e[a]];return e.join("")},y=function(k){for(var h=[],a=0,f=1,d=k.length,c,l,i=0;i<d;i++)c=Math.round(k[i]),l=c-a,a=c,0>l&&0<f?(f=-1,h.push("Z")):0<l&&0>f&&(f=1,h.push("Y")),c=Math.abs(l),c>=t?h.push(e(c.toString(t))):h.push(c.toString(t));return h.join("")},v=function(e){for(var h=
+[],e=e.split(""),a=e.length,f,d=1,c=[],l=0,i=0;i<a;i++)f=e[i],f in q||"Z"===f||"Y"===f?(0!==c.length&&(c=parseInt(c.join(""),t)*d+l,h.push(c),l=c),"Z"===f?(d=-1,c=[]):"Y"===f?(d=1,c=[]):c=[f]):c.push(m[f]);h.push(parseInt(c.join(""),t)*d+l);return h},z=function(e){for(var h=[],a=e.length,f,d=0;d<a;d++)f=e[d],h.push(y(f.x)),h.push(y(f.y));return h.join("_")},u=function(e){for(var h=[],e=e.split("_"),a=e.length/2,f=0;f<a;f++)h.push({x:v(e[2*f]),y:v(e[2*f+1])});return h},k=function(e){return["image/jsignature;base30",
+z(e)]},r=function(e,h,a){"string"===typeof e&&("image/jsignature;base30"===e.substring(0,23).toLowerCase()&&(e=e.substring(24)),a(u(e)))};if(null==this.jQuery)throw Error("We need jQuery for some of the functionality. jQuery is not detected. Failing to initialize...");var x=this.jQuery.fn.jSignature;x("addPlugin","export","base30",k);x("addPlugin","export","image/jsignature;base30",k);x("addPlugin","import","base30",r);x("addPlugin","import","image/jsignature;base30",r);this.jSignatureDebug&&(this.jSignatureDebug.base30=
+{remapTailChars:e,compressstrokeleg:y,uncompressstrokeleg:v,compressstrokes:z,uncompressstrokes:u,charmap:q})}).call("undefined"!==typeof window?window:this);
+(function(){function q(a,f){this.x=a;this.y=f;this.reverse=function(){return new this.constructor(-1*this.x,-1*this.y)};this._length=null;this.getLength=function(){this._length||(this._length=Math.sqrt(Math.pow(this.x,2)+Math.pow(this.y,2)));return this._length};var d=function(a){return Math.round(a/Math.abs(a))};this.resizeTo=function(a){if(0===this.x&&0===this.y)this._length=0;else if(0===this.x)this._length=a,this.y=a*d(this.y);else if(0===this.y)this._length=a,this.x=a*d(this.x);else{var f=Math.abs(this.y/
+this.x),e=Math.sqrt(Math.pow(a,2)/(1+Math.pow(f,2))),f=f*e;this._length=a;this.x=e*d(this.x);this.y=f*d(this.y)}return this};this.angleTo=function(a){var d=this.getLength()*a.getLength();return 0===d?0:Math.acos(Math.min(Math.max((this.x*a.x+this.y*a.y)/d,-1),1))/Math.PI}}function m(a,f){this.x=a;this.y=f;this.getVectorToCoordinates=function(a,c){return new q(a-this.x,c-this.y)};this.getVectorFromCoordinates=function(a,c){return this.getVectorToCoordinates(a,c).reverse()};this.getVectorToPoint=function(a){return new q(a.x-
+this.x,a.y-this.y)};this.getVectorFromPoint=function(a){return this.getVectorToPoint(a).reverse()}}function k(a,f){var d=Math.pow(10,f);return Math.round(a*d)/d}function t(a,f,d){var f=f+1,c=new m(a.x[f-1],a.y[f-1]),e=new m(a.x[f],a.y[f]),e=c.getVectorToPoint(e),i=new m(a.x[f-2],a.y[f-2]),c=i.getVectorToPoint(c);return c.getLength()>d?(d=2<f?(new m(a.x[f-3],a.y[f-3])).getVectorToPoint(i):new q(0,0),a=0.35*c.getLength(),i=c.angleTo(d.reverse()),f=e.angleTo(c.reverse()),d=(new q(d.x+c.x,d.y+c.y)).resizeTo(Math.max(0.05,
+i)*a),e=(new q(c.x+e.x,c.y+e.y)).reverse().resizeTo(Math.max(0.05,f)*a),e=new q(c.x+e.x,c.y+e.y),["c",k(d.x,2),k(d.y,2),k(e.x,2),k(e.y,2),k(c.x,2),k(c.y,2)]):["l",k(c.x,2),k(c.y,2)]}function r(a,f){var d=a.x.length-1,c=new m(a.x[d],a.y[d]),e=new m(a.x[d-1],a.y[d-1]),c=e.getVectorToPoint(c);if(1<d&&c.getLength()>f){var d=(new m(a.x[d-2],a.y[d-2])).getVectorToPoint(e),e=c.angleTo(d.reverse()),i=0.35*c.getLength(),d=(new q(d.x+c.x,d.y+c.y)).resizeTo(Math.max(0.05,e)*i);return["c",k(d.x,2),k(d.y,2),k(c.x,
+2),k(c.y,2),k(c.x,2),k(c.y,2)]}return["l",k(c.x,2),k(c.y,2)]}function e(a,e,d){for(var e=["M",k(a.x[0]-e,2),k(a.y[0]-d,2)],d=1,c=a.x.length-1;d<c;d++)e.push.apply(e,t(a,d,1));0<c?e.push.apply(e,r(a,d,1)):0===c&&e.push.apply(e,["l",1,1]);return e.join(" ")}function y(a){var f=['<?xml version="1.0" encoding="UTF-8" standalone="no"?>','<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">'],d,c=a.length,l,i=[],h=[],k=l=d=0,n=0,p=[];if(0!==c){for(d=0;d<c;d++){k=
+a[d];n=[];l={x:[],y:[]};for(var m=void 0,b=void 0,m=0,b=k.x.length;m<b;m++)n.push({x:k.x[m],y:k.y[m]});n=simplify(n,0.7,!0);m=0;for(b=n.length;m<b;m++)l.x.push(n[m].x),l.y.push(n[m].y);p.push(l);i=i.concat(l.x);h=h.concat(l.y)}a=Math.min.apply(null,i)-1;c=Math.max.apply(null,i)+1;i=Math.min.apply(null,h)-1;h=Math.max.apply(null,h)+1;k=0>a?0:a;n=0>i?0:i;d=c-a;l=h-i}f.push('<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="'+d.toString()+'" height="'+l.toString()+'">');d=0;for(c=p.length;d<
+c;d++)l=p[d],f.push('<path fill="none" stroke="#000000" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" d="'+e(l,k,n)+'"/>');f.push("</svg>");return f.join("")}function v(a){return[p,y(a)]}function z(a){return[h,x(y(a))]}var u=window;"use strict";("undefined"!=typeof exports?exports:u).simplify=function(a,e,d){e=void 0!==e?e*e:1;if(!d){for(var c=a.length,l,i=a[0],h=[i],d=1;d<c;d++){l=a[d];var k=l.x-i.x,n=l.y-i.y;k*k+n*n>e&&(h.push(l),i=l)}a=(i!==l&&h.push(l),h)}l=a;var d=l.length,
+c=new ("undefined"!=typeof Uint8Array?Uint8Array:Array)(d),i=0,h=d-1,m,p,b=[],j=[],s=[];for(c[i]=c[h]=1;h;){n=0;for(k=i+1;k<h;k++){m=l[k];var g=l[i],r=l[h],q=g.x,t=g.y,g=r.x-q,u=r.y-t,v=void 0;if(0!==g||0!==u)v=((m.x-q)*g+(m.y-t)*u)/(g*g+u*u),1<v?(q=r.x,t=r.y):0<v&&(q+=g*v,t+=u*v);m=(g=m.x-q,u=m.y-t,g*g+u*u);m>n&&(p=k,n=m)}n>e&&(c[p]=1,b.push(i),j.push(p),b.push(p),j.push(h));i=b.pop();h=j.pop()}for(k=0;k<d;k++)c[k]&&s.push(l[k]);return a=s,a};if("function"!==typeof x)var x=function(a){var e="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=".split(""),
+d,c,h,i,k=0,m=0,n="",n=[];do d=a.charCodeAt(k++),c=a.charCodeAt(k++),h=a.charCodeAt(k++),i=d<<16|c<<8|h,d=i>>18&63,c=i>>12&63,h=i>>6&63,i&=63,n[m++]=e[d]+e[c]+e[h]+e[i];while(k<a.length);n=n.join("");a=a.length%3;return(a?n.slice(0,a-3):n)+"===".slice(a||3)};var p="image/svg+xml",h="image/svg+xml;base64";if("undefined"===typeof $)throw Error("We need jQuery for some of the functionality. jQuery is not detected. Failing to initialize...");u=$.fn.jSignature;u("addPlugin","export","svg",v);u("addPlugin",
+"export",p,v);u("addPlugin","export","svgbase64",z);u("addPlugin","export",h,z)})();

jsignature/static/js/jsignature_admin_init.js

@@ -0,0 +1,4 @@
+if (django && django.jQuery) {
+  var jQuery = django.jQuery;
+  var $ = django.jQuery;
+}

jsignature/templatetags/jsignature_filters.py

@@ -0,0 +1,21 @@
+import base64
+import io
+
+from django import template
+from django.utils.encoding import iri_to_uri
+
+from jsignature.utils import draw_signature
+
+register = template.Library()
+
+
+@register.filter
+def signature_base64(value):
+    if value is None or not isinstance(value, str):
+        return ""
+    in_mem_file = io.BytesIO()
+    draw_signature(value).save(in_mem_file, format="PNG")
+    in_mem_file.seek(0)
+    return "data:image/png;base64,{}".format(
+        iri_to_uri(base64.b64encode(in_mem_file.read()).decode('utf8'))
+    )

jsignature/tests/__init__.py

@@ -1,5 +0,0 @@
-from .widgets import JSignatureWidgetTest
-from .forms import JSignatureFormFieldTest
-from .fields import JSignatureFieldTest
-from .mixins import JSignatureFieldsMixinTest
-from .utils import UtilsTest

jsignature/widgets.py

@@ -3,10 +3,10 @@
     with jSignature jQuery plugin
 """
 import json
-import six
 
+from django.conf import settings
 from django.template.loader import render_to_string
-from django.forms.widgets import HiddenInput
+from django import forms
 from django.core import validators
 from django.core.exceptions import ValidationError
 
@@ -17,7 +17,14 @@ from jsignature.settings import JSIGNATURE_DEFAULT_CONFIG
 JSIGNATURE_EMPTY_VALUES = validators.EMPTY_VALUES + ('[]', )
 
 
-class JSignatureWidget(HiddenInput):
+try:
+    from django.utils import six
+    string_types = six.string_types
+except ImportError:
+    string_types = str
+
+
+class JSignatureWidget(forms.HiddenInput):
     """
     A widget handling a signature capture field with with jSignature
     """
@@ -26,9 +33,22 @@ class JSignatureWidget(HiddenInput):
     # normal field, not a hidden one
     is_hidden = False
 
-    class Media:
-        js = ('js/jSignature.min.js',
-              'js/django_jsignature.js')
+    @property
+    def media(self):
+        JSIGNATURE_JQUERY = getattr(settings, 'JSIGNATURE_JQUERY', 'custom')
+        files = ()
+        if JSIGNATURE_JQUERY == 'admin':
+            files = (
+                'admin/js/jquery.init.js',
+                'js/jsignature_admin_init.js',
+            )
+        elif JSIGNATURE_JQUERY != 'custom':
+            files = (JSIGNATURE_JQUERY,)
+        files += (
+            'js/jSignature.min.js',
+            'js/django_jsignature.js',
+        )
+        return forms.Media(js=files)
 
     def __init__(self, attrs=None, jsignature_attrs=None):
         super(JSignatureWidget, self).__init__(attrs)
@@ -53,13 +73,13 @@ class JSignatureWidget(HiddenInput):
         """ Prepare value before effectively render widget """
         if value in JSIGNATURE_EMPTY_VALUES:
             return "[]"
-        elif isinstance(value, six.string_types):
+        elif isinstance(value, string_types):
             return value
         elif isinstance(value, list):
             return json.dumps(value)
         raise ValidationError('Invalid format.')
 
-    def render(self, name, value, attrs=None):
+    def render(self, name, value, attrs=None, renderer=None):
         """ Render widget """
         # Build config
         jsign_id = self.build_jsignature_id(name)

quicktest.py

@@ -1,82 +0,0 @@
-import os
-import sys
-import argparse
-from django.conf import settings
-
-
-class QuickDjangoTest(object):
-    """
-    A quick way to run the Django test suite without a fully-configured project.
-
-    Example usage:
-
-        >>> QuickDjangoTest('app1', 'app2')
-
-    Based on a script published by Lukasz Dziedzia at:
-    http://stackoverflow.com/questions/3841725/how-to-launch-tests-for-django-reusable-app
-    """
-    DIRNAME = os.path.dirname(__file__)
-    INSTALLED_APPS = (
-    )
-
-    def __init__(self, *args, **kwargs):
-        self.apps = args
-        self.run_tests()
-
-    def run_tests(self):
-        """
-        Fire up the Django test suite developed for version 1.2
-        """
-        settings.configure(
-            TEMPLATE_DIRS = ('jsignature/templates/',),
-            ROOT_URLCONF = 'jsignature.tests',
-            DEBUG = True,
-            DATABASES = {
-                'default': {
-                    'ENGINE': 'django.db.backends.sqlite3',
-                    'NAME': os.path.join(self.DIRNAME, 'database.db'),
-                    'USER': '',
-                    'PASSWORD': '',
-                    'HOST': '',
-                    'PORT': '',
-                }
-            },
-            MIDDLEWARE_CLASSES = (
-                'django.contrib.sessions.middleware.SessionMiddleware',
-                'django.middleware.common.CommonMiddleware',
-                'django.middleware.csrf.CsrfViewMiddleware',
-                'django.contrib.auth.middleware.AuthenticationMiddleware',
-                'django.contrib.messages.middleware.MessageMiddleware',
-            ),
-            INSTALLED_APPS = self.INSTALLED_APPS + self.apps
-        )
-        # Setup is needed for Django >= 1.7
-        import django
-        if hasattr(django, 'setup'):
-            django.setup()
-        try:
-            from django.test.runner import DiscoverRunner
-            failures = DiscoverRunner().run_tests(self.apps, verbosity=1)
-        except ImportError:
-            # DjangoTestSuiteRunner has been deprecated in Django 1.7
-            from django.test.simple import DjangoTestSuiteRunner
-            failures = DjangoTestSuiteRunner().run_tests(self.apps, verbosity=1)
-        if failures: # pragma: no cover
-            sys.exit(failures)
-
-if __name__ == '__main__':
-    """
-    What do when the user hits this file from the shell.
-
-    Example usage:
-
-        $ python quicktest.py app1 app2
-
-    """
-    parser = argparse.ArgumentParser(
-        usage="[args]",
-        description="Run Django tests on the provided applications."
-    )
-    parser.add_argument('apps', nargs='+', type=str)
-    args = parser.parse_args()
-    QuickDjangoTest(*args.apps)

requirements.txt

@@ -1,3 +1,2 @@
 pillow
 pyquery
-six

runtests.py

@@ -0,0 +1,15 @@
+#!/usr/bin/env python
+import os
+import sys
+
+import django
+from django.conf import settings
+from django.test.utils import get_runner
+
+if __name__ == "__main__":
+    os.environ['DJANGO_SETTINGS_MODULE'] = 'tests.settings'
+    django.setup()
+    TestRunner = get_runner(settings)
+    test_runner = TestRunner()
+    failures = test_runner.run_tests(["tests"])
+    sys.exit(bool(failures))

setup.py

@@ -5,17 +5,17 @@ here = os.path.abspath(os.path.dirname(__file__))
 
 setup(
     name='django-jsignature',
-    version='0.8',
+    version='0.10',
     author='Florent Lebreton',
     author_email='florent.lebreton@makina-corpus.com',
     url='https://github.com/fle/django-jsignature',
-    download_url='https://github.com/fle/django-jsignature/tarball/0.8',
+    download_url='http://pypi.python.org/pypi/django-jsignature',
     description='Use jSignature jQuery plugin in your django projects',
     long_description=open(os.path.join(here, 'README.rst')).read() + '\n\n' +
         open(os.path.join(here, 'CHANGES')).read(),
     license='LPGL, see LICENSE file.',
-    install_requires=['Django'],
-    packages=find_packages(),
+    install_requires=['Django>=1.11', 'pillow'],
+    packages=find_packages(exclude=['example_project*', 'tests']),
     include_package_data=True,
     zip_safe=False,
     classifiers=[
@@ -25,14 +25,17 @@ setup(
         'Intended Audience :: Developers',
         'Environment :: Web Environment',
         'Framework :: Django',
+        'Framework :: Django :: 1.11',
+        'Framework :: Django :: 2.2',
+        'Framework :: Django :: 3.0',
         'Development Status :: 5 - Production/Stable',
-         'Programming Language :: Python',
-         'Programming Language :: Python :: 2',
-         'Programming Language :: Python :: 2.6',
-         'Programming Language :: Python :: 2.7',
-         'Programming Language :: Python :: 3',
-         'Programming Language :: Python :: 3.2',
-         'Programming Language :: Python :: 3.3',
-         'Programming Language :: Python :: 3.4'
+        'Programming Language :: Python',
+        'Programming Language :: Python :: 2',
+        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
     ],
 )

tests/models.py

@@ -1,5 +1,5 @@
 """ Provides a dummy model implementing JSignatureFieldsMixin """
-from ..mixins import JSignatureFieldsMixin
+from jsignature.mixins import JSignatureFieldsMixin
 
 
 class JSignatureTestModel(JSignatureFieldsMixin):

tests/settings.py

@@ -0,0 +1,34 @@
+import os
+
+DEBUG = True
+
+BASE_DIR = os.path.dirname(os.path.dirname(__file__))
+
+SECRET_KEY = 'thisisntactuallysecretatall'
+
+ALLOWED_HOSTS = ['*']
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': ':memory:',
+    }
+}
+
+# ROOT_URLCONF = 'tests.urls'
+
+INSTALLED_APPS = [
+    'jsignature',
+    'tests',
+]
+
+PASSWORD_HASHERS = {
+    'django.contrib.auth.hashers.MD5PasswordHasher',
+}
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'APP_DIRS': True,
+    },
+]

tests/test_fields.py

@@ -1,11 +1,17 @@
 import json
-import six
 
 from django.test import SimpleTestCase
 from django.core.exceptions import ValidationError
 
-from ..fields import JSignatureField
-from ..forms import JSignatureField as JSignatureFormField
+from jsignature.fields import JSignatureField
+from jsignature.forms import JSignatureField as JSignatureFormField
+
+try:
+    from django.utils import six
+
+    string_types = six.string_types
+except ImportError:
+    string_types = str
 
 
 class JSignatureFieldTest(SimpleTestCase):
@@ -40,7 +46,7 @@ class JSignatureFieldTest(SimpleTestCase):
         f = JSignatureField()
         val = [{"x": [1, 2], "y": [3, 4]}]
         val_prep = f.get_prep_value(val)
-        self.assertIsInstance(val_prep, six.string_types)
+        self.assertIsInstance(val_prep, string_types)
         self.assertEquals(val, json.loads(val_prep))
 
     def test_get_prep_value_correct_values_json(self):
@@ -48,7 +54,7 @@ class JSignatureFieldTest(SimpleTestCase):
         val = [{"x": [1, 2], "y": [3, 4]}]
         val_str = '[{"x":[1,2], "y":[3,4]}]'
         val_prep = f.get_prep_value(val_str)
-        self.assertIsInstance(val_prep, six.string_types)
+        self.assertIsInstance(val_prep, string_types)
         self.assertEquals(val, json.loads(val_prep))
 
     def test_get_prep_value_incorrect_values(self):

tests/test_filter.py

@@ -0,0 +1,19 @@
+import json
+
+from django.test import SimpleTestCase
+
+from jsignature.templatetags.jsignature_filters import signature_base64
+
+DUMMY_VALUE = [{"x": [205, 210], "y": [59, 63]},
+               {"x": [205, 207], "y": [67, 64]}]
+DUMMY_STR_VALUE = json.dumps(DUMMY_VALUE)
+
+
+class TemplateFilterTest(SimpleTestCase):
+    def test_inputs_bad_type_value(self):
+        self.assertEqual(signature_base64(object()), '')
+        self.assertEqual(signature_base64(None), '')
+
+    def test_outputs_as_base64(self):
+        output = signature_base64(DUMMY_STR_VALUE)
+        self.assertEqual(output, "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAANwAAABNCAYAAADNYApnAAABIklEQVR4nO3ZP0odURjG4d/ce5dgE3EHgXTp07iD6B7cga3YpUoh7iFrCti4BkGw0OLMoEVIEW4yxPs81ZxzGPial+/8KQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAPh3ttW0dhFwCN4GbbNaFXAAlrCdVh/m791KtcC7tmkE7mP1XP2sPs1rQgd7NjVCd1TdNkL3UJ2tWRQciovqqRG8q0aXc6aDPZsat5RVX6q7Rui+zXPbX/wD/KFla7mc306qH9XneazLwZ4s3eu8eqwuV6wF3rXllvK4um9sI7/Oc7s8hMNeLVf/3xthu5nHzmzwF0y9drjrxvPAMgcA/7/lWUBnAwAAAAAAfucFwt4TZmdXW+AAAAAASUVORK5CYII=")

tests/test_forms.py

@@ -1,8 +1,8 @@
 from django.test import SimpleTestCase
 from django.core.exceptions import ValidationError
 
-from ..widgets import JSignatureWidget
-from ..forms import JSignatureField
+from jsignature.widgets import JSignatureWidget
+from jsignature.forms import JSignatureField
 
 
 class JSignatureFormFieldTest(SimpleTestCase):

tests/test_mixins.py

@@ -1,24 +1,10 @@
 from datetime import date
-from django.conf import settings
-from django.db.models import loading
-from django.test import SimpleTestCase
-from django.core.management import call_command
+from django.test import TestCase
 
 from .models import JSignatureTestModel
 
 
-class JSignatureFieldsMixinTest(SimpleTestCase):
-
-    def setUp(self):
-        self.old_installed_apps = settings.INSTALLED_APPS
-        settings.INSTALLED_APPS = list(settings.INSTALLED_APPS)
-        settings.INSTALLED_APPS.append('jsignature.tests')
-        loading.cache.loaded = False
-        call_command('syncdb', verbosity=0)
-
-    def tearDown(self):
-        settings.INSTALLED_APPS = self.old_installed_apps
-
+class JSignatureFieldsMixinTest(TestCase):
     def test_save_create(self):
         # If an object is created signed, signature date must be set
         signature_value = [{"x": [1, 2], "y": [3, 4]}]

tests/test_utils.py

@@ -4,7 +4,7 @@ import imghdr
 from PIL import Image
 from django.test import SimpleTestCase
 
-from ..utils import draw_signature
+from jsignature.utils import draw_signature
 
 DUMMY_VALUE = [{"x": [205, 210], "y": [59, 63]},
                {"x": [205, 207], "y": [67, 64]}]

tests/test_widgets.py

@@ -1,16 +1,21 @@
 import json
 from pyquery import PyQuery as pq
-import six
 
-from django.test import SimpleTestCase
+from django.test import SimpleTestCase, override_settings
 from django.core.exceptions import ValidationError
 
-from ..widgets import JSignatureWidget
-from ..settings import JSIGNATURE_HEIGHT
+from jsignature.widgets import JSignatureWidget
+from jsignature.settings import JSIGNATURE_HEIGHT
+
+try:
+    from django.utils import six
+
+    string_types = six.string_types
+except ImportError:
+    string_types = str
 
 
 class JSignatureWidgetTest(SimpleTestCase):
-
     def test_default_media(self):
         widget = JSignatureWidget()
         media = widget.media
@@ -22,6 +27,20 @@ class JSignatureWidgetTest(SimpleTestCase):
         media_css = list(media.render_css())
         self.assertEquals([], media_css)
 
+    @override_settings(JSIGNATURE_JQUERY='admin')
+    def test_media_in_admin(self):
+        widget = JSignatureWidget()
+        media = widget.media
+        media_js = list(media.render_js())
+        self.assertEqual(4, len(media_js))
+
+    @override_settings(JSIGNATURE_JQUERY='https://code.jquery.com/jquery-3.5.0.min.js')
+    def test_media_custom_jquery(self):
+        widget = JSignatureWidget()
+        media = widget.media
+        media_js = list(media.render_js())
+        self.assertEqual(3, len(media_js))
+
     def test_init(self):
         w = JSignatureWidget()
         self.assertEquals({}, w.jsignature_attrs)
@@ -49,7 +68,7 @@ class JSignatureWidgetTest(SimpleTestCase):
         w = JSignatureWidget()
         val = [{"x": [1, 2], "y": [3, 4]}]
         val_prep = w.prep_value(val)
-        self.assertIsInstance(val_prep, six.string_types)
+        self.assertIsInstance(val_prep, string_types)
         self.assertEquals(val, json.loads(val_prep))
 
     def test_prep_value_correct_values_json(self):
@@ -57,7 +76,7 @@ class JSignatureWidgetTest(SimpleTestCase):
         val = [{"x": [1, 2], "y": [3, 4]}]
         val_str = '[{"x":[1,2], "y":[3,4]}]'
         val_prep = w.prep_value(val_str)
-        self.assertIsInstance(val_prep, six.string_types)
+        self.assertIsInstance(val_prep, string_types)
         self.assertEquals(val, json.loads(val_prep))
 
     def test_prep_value_incorrect_values(self):

tox.ini

@@ -0,0 +1,23 @@
+[tox]
+envlist =
+    {py27,py35,py36}-django111,
+    {py35,py36,py37,py38}-django22,
+    {py36,py37,py38}-django{30,master}
+
+[testenv]
+deps=
+    django111: Django>=1.11,<2.0
+    django22: Django>=2.2,<3.0
+    django30: Django>=3.0,<4.0
+    djangomaster: https://github.com/django/django/archive/master.tar.gz
+    -r requirements.txt
+    coverage
+
+commands= coverage run ./runtests.py
+
+[travis:env]
+DJANGO =
+    1.11: django111
+    2.2: django22
+    3.0: django30
+    master: djangomaster