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

@@ -1,19 +1,46 @@
 language: python
 
-python:
+matrix:
-  - "2.7"
+  fast_finish: true
+  allow_failures:
+    - env: DJANGO=master
+  include:
+    - python: 2.7
+      env: DJANGO=1.11
 
-env:
+    - python: 3.5
-  - DJANGO_VERSION=1.4
+      env: DJANGO=1.11
-  - DJANGO_VERSION=1.5
+    - 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 tox tox-travis
-  - pip install -q Django==$DJANGO_VERSION --use-mirrors
+script:
-  - pip install coverage
+  - tox
-
-script: coverage run quicktest.py jsignature
-
 after_success:
   - pip install coveralls
   - coveralls

CHANGES

@@ -2,6 +2,34 @@
 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)
+==================
+
+** New **
+
+- Add support for Python 3 (@Gagaro)
+- Add support for Django 1.7 (@Gagaro)
+
+
 0.7.6 (2014-11-26)
 ==================
 

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
+    :alt: Build status
 
 .. image:: https://coveralls.io/repos/fle/django-jsignature/badge.png
     :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``:
@@ -39,51 +43,50 @@ USAGE
         'jsignature',
     )
 
-* Use provided form field and widget:
+* Use provided model field (for easy storage):
 
 ::
 
-    # forms.py
+    # models.py
-    from django import forms
+    from django.db import models
-    from jsignature.forms import JSignatureField
+    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">
+    <form action="" method="post">
-        {% for field in form %}
+        {{ form }}
-            {{ field.label_tag }}
+        <input type="submit" value="Save" />
-            {{ field }}
-        {% endfor %}
-        <input type="submit" value="Save"/>
         {% csrf_token %}
     </form>
 
-* Render image after form validation:
+* Render image from db value in your display template:
 
 ::
 
-    # views.py
+    {# yourtemplate.html #}
-    from jsignature.utils import draw_signature
+    {% load jsignature_filters %}
-    from myapp.forms import SignatureForm
 
-    def my_view(request):
+    <img src="{{ obj.signature|signature_base64 }}" alt="{{ obj }}" />
-        form = SignatureForm(request.POST or None)
+
-        if form.is_valid():
+
-            signature = form.cleaned_data.get('signature')
+*   By default, jSignature is made to work outside of admin, requiring that
-            if signature:
+    you include the jQuery library in your ``<head>``.
-                # as an image
+
-                signature_picture = draw_signature(signature)
+    If you want to use jSignature in the Django admin site, set the
-                # or as a file
+    ``JSIGNATURE_JQUERY`` setting to ``admin``. Otherwise if set to any url
-                signature_file_path = draw_signature(signature, as_file=True)
+    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

@@ -3,11 +3,21 @@
     with jSignature jQuery plugin
 """
 import json
+
 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(models.Field):
@@ -15,7 +25,6 @@ class JSignatureField(models.Field):
     A model field handling a signature captured with jSignature
     """
     description = "A signature captured with jSignature"
-    __metaclass__ = models.SubfieldBase
 
     def get_internal_type(self):
         return 'TextField'
@@ -37,7 +46,7 @@ class JSignatureField(models.Field):
     def get_prep_value(self, value):
         if value in JSIGNATURE_EMPTY_VALUES:
             return None
-        elif isinstance(value, basestring):
+        elif isinstance(value, string_types):
             return value
         elif isinstance(value, list):
             return json.dumps(value)
@@ -47,9 +56,3 @@ class JSignatureField(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

@@ -1,4 +1,5 @@
-$(document).ready(function() {
+(function($) {
+  $(document).ready(function() {
     $(".jsign-container").each(function(){
       var config = $(this).data('config');
       var value = $(this).data('initial-value');
@@ -17,5 +18,5 @@ $(document).ready(function() {
     $(".jsign-wrapper input").on("click", function(e) {
       $(this).siblings('.jsign-container').jSignature('reset');
     });
-
+  });
-});
+})(jQuery || django.jQuery)

jsignature/static/js/jSignature.min.js

@@ -1,11 +1,16 @@
 /*
  
-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> 
 
 
+Simplify.js BSD 
+(c) 2012, Vladimir Agafonkin
+mourner.github.com/simplify-js
+
+
 base64 encoder
 MIT, GPL
 http://phpjs.org/functions/base64_encode
@@ -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;
+(function(){function q(b){for(var j,s=b.css("color"),g,b=b[0],c=!1;b&&!g&&!c;){try{j=$(b).css("background-color")}catch(d){j="transparent"}"transparent"!==j&&"rgba(0, 0, 0, 0)"!==j&&(g=j);c=b.body;b=b.parentNode}var b=/rgb[a]*\((\d+),\s*(\d+),\s*(\d+)/,c=/#([AaBbCcDdEeFf\d]{2})([AaBbCcDdEeFf\d]{2})([AaBbCcDdEeFf\d]{2})/,a;j=void 0;(j=s.match(b))?a={r:parseInt(j[1],10),g:parseInt(j[2],10),b:parseInt(j[3],10)}:(j=s.match(c))&&(a={r:parseInt(j[1],16),g:parseInt(j[2],16),b:parseInt(j[3],16)});var f;g?
-d?(a=void 0,(a=d.match(b))?n={r:parseInt(a[1],10),g:parseInt(a[2],10),b:parseInt(a[3],10)}:(a=d.match(q))&&(n={r:parseInt(a[1],16),g:parseInt(a[2],16),b:parseInt(a[3],16)})):n=k?127<Math.max.apply(null,[k.r,k.g,k.b])?{r:0,g:0,b:0}:{r:255,g:255,b:255}:{r:255,g:255,b:255};a=function(a){return"rgb("+[a.r,a.g,a.b].join(", ")+")"};k&&n?(b=Math.max.apply(null,[k.r,k.g,k.b]),k=Math.max.apply(null,[n.r,n.g,n.b]),k=Math.round(k+-0.75*(k-b)),k={r:k,g:k,b:k}):k?(k=Math.max.apply(null,[k.r,k.g,k.b]),b=1,127<
+(j=void 0,(j=g.match(b))?f={r:parseInt(j[1],10),g:parseInt(j[2],10),b:parseInt(j[3],10)}:(j=g.match(c))&&(f={r:parseInt(j[1],16),g:parseInt(j[2],16),b:parseInt(j[3],16)})):f=a?127<Math.max.apply(null,[a.r,a.g,a.b])?{r:0,g:0,b:0}:{r:255,g:255,b:255}:{r:255,g:255,b:255};j=function(b){return"rgb("+[b.r,b.g,b.b].join(", ")+")"};a&&f?(b=Math.max.apply(null,[a.r,a.g,a.b]),a=Math.max.apply(null,[f.r,f.g,f.b]),a=Math.round(a+-0.75*(a-b)),a={r:a,g:a,b:a}):a?(a=Math.max.apply(null,[a.r,a.g,a.b]),b=1,127<a&&
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+"export",p,v);u("addPlugin","export","svgbase64",z);u("addPlugin","export",h,z)})();
-b,a,e,d,g=0,h=0,k="",k=[];do b=c.charCodeAt(g++),a=c.charCodeAt(g++),e=c.charCodeAt(g++),d=b<<16|a<<8|e,b=d>>18&63,a=d>>12&63,e=d>>6&63,d&=63,k[h++]=f[b]+f[a]+f[e]+f[d];while(g<c.length);k=k.join("");c=c.length%3;return(c?k.slice(0,c-3):k)+"===".slice(c||3)};var x="image/svg+xml",y="image/svg+xml;base64";if("undefined"===typeof $)throw Error("We need jQuery for some of the functionality. jQuery is not detected. Failing to initialize...");(function(c){c=c.fn.jSignature;c("addPlugin","export","svg",
-g);c("addPlugin","export",x,g);c("addPlugin","export","svgbase64",v);c("addPlugin","export",y,v)})($)})();

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

@@ -4,10 +4,12 @@
 """
 import json
 
+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
+
 from django.utils.safestring import mark_safe
 from django.utils.translation import ugettext_lazy as _
 from jsignature.settings import JSIGNATURE_DEFAULT_CONFIG
@@ -15,7 +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
     """
@@ -24,9 +33,22 @@ class JSignatureWidget(HiddenInput):
     # normal field, not a hidden one
     is_hidden = False
 
-    class Media:
+    @property
-        js = ('js/jSignature.min.js',
+    def media(self):
-              'js/django_jsignature.js')
+        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)
@@ -51,13 +73,13 @@ class JSignatureWidget(HiddenInput):
         """ Prepare value before effectively render widget """
         if value in JSIGNATURE_EMPTY_VALUES:
             return "[]"
-        elif isinstance(value, basestring):
+        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

@@ -1,64 +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 = (
-        'django.contrib.contenttypes',
-        'django.contrib.sessions',
-    )
-
-    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(
-            DATABASES={
-                'default': {
-                    'ENGINE': 'django.db.backends.sqlite3',
-                    'NAME': os.path.join(self.DIRNAME, 'database.db'),
-                    'USER': '',
-                    'PASSWORD': '',
-                    'HOST': '',
-                    'PORT': '',
-                }
-            },
-            INSTALLED_APPS=self.INSTALLED_APPS + self.apps,
-        )
-        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)

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='0.7.6',
+    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/0.7.6",
+    download_url='http://pypi.python.org/pypi/django-jsignature',
-    description="Use jSignature jQuery plugin in your django projects",
+    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'],
+    install_requires=['Django>=1.11', 'pillow'],
-    packages=find_packages(),
+    packages=find_packages(exclude=['example_project*', 'tests']),
     include_package_data=True,
     zip_safe=False,
     classifiers=[
@@ -25,6 +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 :: 2.7'],
+        '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

@@ -1,42 +1,64 @@
 import json
+
 from django.test import SimpleTestCase
 from django.core.exceptions import ValidationError
 
-from ..fields import JSignatureField
+from jsignature.fields import JSignatureField
-from ..forms import JSignatureField as JSignatureFormField
+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):
 
-    def test_to_python(self):
+    def test_to_python_empty(self):
         f = JSignatureField()
-        # Empty values
         for val in ['', [], '[]']:
             self.assertIsNone(f.to_python(val))
-        # Correct values
+
+    def test_to_python_correct_value_python(self):
+        f = JSignatureField()
         val = [{"x": [1, 2], "y": [3, 4]}]
         self.assertEquals(val, f.to_python(val))
+
+    def test_to_python_correct_value_json(self):
+        f = JSignatureField()
+        val = [{"x": [1, 2], "y": [3, 4]}]
         val_str = '[{"x":[1,2], "y":[3,4]}]'
         self.assertEquals(val, f.to_python(val_str))
-        # Incorrect values
+
+    def test_to_python_incorrect_value(self):
+        f = JSignatureField()
         val = 'foo'
         self.assertRaises(ValidationError, f.to_python, val)
 
-    def test_get_prep_value(self):
+    def test_get_prep_value_empty(self):
         f = JSignatureField()
-        # Empty values
         for val in ['', [], '[]']:
             self.assertIsNone(f.get_prep_value(val))
-        # Correct values
+
+    def test_get_prep_value_correct_values_python(self):
+        f = JSignatureField()
         val = [{"x": [1, 2], "y": [3, 4]}]
         val_prep = f.get_prep_value(val)
-        self.assertIsInstance(val_prep, basestring)
+        self.assertIsInstance(val_prep, string_types)
         self.assertEquals(val, json.loads(val_prep))
+
+    def test_get_prep_value_correct_values_json(self):
+        f = JSignatureField()
+        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, basestring)
+        self.assertIsInstance(val_prep, string_types)
         self.assertEquals(val, json.loads(val_prep))
-        # Incorrect values
+
+    def test_get_prep_value_incorrect_values(self):
+        f = JSignatureField()
         val = type('Foo')
         self.assertRaises(ValidationError, f.get_prep_value, val)
 

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 jsignature.widgets import JSignatureWidget
-from ..forms import JSignatureField
+from jsignature.forms import JSignatureField
 
 
 class JSignatureFormFieldTest(SimpleTestCase):
@@ -11,14 +11,17 @@ class JSignatureFormFieldTest(SimpleTestCase):
         f = JSignatureField()
         self.assertIsInstance(f.widget, JSignatureWidget)
 
-    def test_to_python(self):
+    def test_to_python_empty_values(self):
         f = JSignatureField()
-        # Empty values
         for val in ['', [], '[]']:
             self.assertIsNone(f.to_python(val))
-        # Correct values
+
+    def test_to_python_correct_values(self):
+        f = JSignatureField()
         val = '[{"x":[1,2], "y":[3,4]}]'
         self.assertEquals([{'x': [1, 2], 'y': [3, 4]}], f.to_python(val))
-        # Incorrect values
+
+    def test_to_python_incorrect_values(self):
+        f = JSignatureField()
         val = 'foo'
         self.assertRaises(ValidationError, f.to_python, val)

tests/test_mixins.py

@@ -1,25 +1,11 @@
 from datetime import date
-from django.conf import settings
+from django.test import TestCase
-from django.db.models import loading
-from django.test import SimpleTestCase
-from django.core.management import call_command
 
 from .models import JSignatureTestModel
 
 
-class JSignatureFieldsMixinTest(SimpleTestCase):
+class JSignatureFieldsMixinTest(TestCase):
-
+    def test_save_create(self):
-    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
-
-    def test_save(self):
         # If an object is created signed, signature date must be set
         signature_value = [{"x": [1, 2], "y": [3, 4]}]
         i = JSignatureTestModel(signature=signature_value)
@@ -27,16 +13,19 @@ class JSignatureFieldsMixinTest(SimpleTestCase):
         i = JSignatureTestModel.objects.get(pk=i.pk)
         self.assertEqual(date.today(), i.signature_date.date())
 
+    def test_save_no_change(self):
         # If signature doesn't change, signature date must not be updated
+        signature_value = [{"x": [1, 2], "y": [3, 4]}]
         i = JSignatureTestModel(signature=signature_value)
         i.save()
         i.signature_date = date(2013, 1, 1)
-        i.signature = signature_value
         i.save()
         i = JSignatureTestModel.objects.get(pk=i.pk)
         self.assertEqual(date(2013, 1, 1), i.signature_date.date())
 
+    def test_save_change(self):
         # If signature changes, signature date must be updated too
+        signature_value = [{"x": [1, 2], "y": [3, 4]}]
         new_signature_value = [{"x": [5, 6], "y": [7, 8]}]
         i = JSignatureTestModel(signature=signature_value,
                                 signature_date=date(2013, 1, 1))
@@ -47,7 +36,9 @@ class JSignatureFieldsMixinTest(SimpleTestCase):
         i = JSignatureTestModel.objects.get(pk=i.pk)
         self.assertEqual(date.today(), i.signature_date.date())
 
+    def test_save_none(self):
         # If sinature is set to None, it must be the same for signature_date
+        signature_value = [{"x": [1, 2], "y": [3, 4]}]
         i = JSignatureTestModel(signature=signature_value)
         i.save()
         i.signature = None

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]}]
@@ -13,22 +13,24 @@ DUMMY_STR_VALUE = json.dumps(DUMMY_VALUE)
 
 class UtilsTest(SimpleTestCase):
 
-    def test_inputs(self):
+    def test_inputs_bad_str_value(self):
-        # Bad str value
         self.assertRaises(ValueError, draw_signature, 'foo_bar')
-        # Bad type value
+
+    def test_inputs_bad_type_value(self):
         self.assertRaises(ValueError, draw_signature, object())
-        # Good list value
+
+    def test_inputs_good_list_value(self):
         draw_signature(DUMMY_VALUE)
-        # Good str value
+
+    def test_inputs_good_str_value(self):
         draw_signature(DUMMY_STR_VALUE)
 
-    def test_outputs(self):
+    def test_outputs_as_file(self):
-        # As a file
         output = draw_signature(DUMMY_VALUE, as_file=True)
         self.assertTrue(os.path.isfile(output))
         self.assertIsNotNone(imghdr.what(output))
-        # As an Image
+
+    def test_outputs_as_image(self):
         output = draw_signature(DUMMY_VALUE)
         self.assertTrue(issubclass(output.__class__, Image.Image))
         self.assertTrue(all(output.getbbox()))

tests/test_widgets.py

@@ -1,15 +1,21 @@
 import json
 from pyquery import PyQuery as pq
 
-from django.test import SimpleTestCase
+from django.test import SimpleTestCase, override_settings
 from django.core.exceptions import ValidationError
 
-from ..widgets import JSignatureWidget
+from jsignature.widgets import JSignatureWidget
-from ..settings import JSIGNATURE_HEIGHT
+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
@@ -21,6 +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)
@@ -39,21 +59,28 @@ class JSignatureWidgetTest(SimpleTestCase):
         self.assertEqual(400, config.get('width'))
         self.assertEqual(JSIGNATURE_HEIGHT, config.get('height'))
 
-    def test_prep_value(self):
+    def test_prep_value_empty_values(self):
         w = JSignatureWidget()
-        # Empty values
         for val in ['', [], '[]']:
             self.assertEqual('[]', w.prep_value(val))
-        # Correct values
+
+    def test_prep_value_correct_values_python(self):
+        w = JSignatureWidget()
         val = [{"x": [1, 2], "y": [3, 4]}]
         val_prep = w.prep_value(val)
-        self.assertIsInstance(val_prep, basestring)
+        self.assertIsInstance(val_prep, string_types)
         self.assertEquals(val, json.loads(val_prep))
+
+    def test_prep_value_correct_values_json(self):
+        w = JSignatureWidget()
+        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, basestring)
+        self.assertIsInstance(val_prep, string_types)
         self.assertEquals(val, json.loads(val_prep))
-        # Incorrect values
+
+    def test_prep_value_incorrect_values(self):
+        w = JSignatureWidget()
         val = type('Foo')
         self.assertRaises(ValidationError, w.prep_value, val)
 
@@ -64,11 +91,12 @@ class JSignatureWidgetTest(SimpleTestCase):
         self.assertEqual(1, len(pq('.jsign-wrapper', output)))
         self.assertEqual(1, len(pq('[type=hidden]', output)))
 
-    def test_render_reset_button(self):
+    def test_render_reset_button_true(self):
         w = JSignatureWidget(jsignature_attrs={'ResetButton': True})
         output = w.render(name='foo', value=None)
         self.assertEqual(1, len(pq('[type=button]', output)))
 
+    def test_render_reset_button_false(self):
         w = JSignatureWidget(jsignature_attrs={'ResetButton': False})
         output = w.render(name='foo', value=None)
         self.assertEqual(0, len(pq('[type=button]', output)))

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