remove django-markdown and handle preview manually

tracker/forms.py

@@ -1,7 +1,6 @@
 from django import forms
 
 from bootstrap3_datetime.widgets import DateTimePicker
-from django_markdown.widgets import MarkdownWidget
 
 from tracker.models import *
 
@@ -23,11 +22,11 @@ class ProjectForm(forms.ModelForm):
 
 class IssueForm(forms.Form):
     title = forms.CharField(max_length=128)
-    description = forms.CharField(widget=MarkdownWidget, required=False)
+    description = forms.CharField(widget=forms.Textarea, required=False)
 
 
 class CommentForm(forms.Form):
-    comment = forms.CharField(widget=MarkdownWidget)
+    comment = forms.CharField(widget=forms.Textarea)
 
 
 class LabelForm(forms.ModelForm):

tracker/static/js/markdown-preview.js

@@ -0,0 +1,25 @@
+var csrftoken = $.cookie('csrftoken');
+
+function csrfSafeMethod(method) {
+  // these HTTP methods do not require CSRF protection
+  return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
+}
+$.ajaxSetup({
+  beforeSend: function(xhr, settings) {
+    if (!csrfSafeMethod(settings.type) && !this.crossDomain) {
+      xhr.setRequestHeader("X-CSRFToken", csrftoken);
+    }
+  }
+});
+
+$('a[href="#preview"]').on("show.bs.tab", function (e) {
+  $('#preview-content').html('Loading preview...');
+  var comment = $('#markdown-content').val();
+  $.post(markdown_preview_url, {'data': comment})
+    .done(function(data, textStatus) {
+      $('#preview-content').html(data);
+    })
+    .fail(function () {
+      $('#preview-content').html('Sorry, an error occured.');
+    });
+})

tracker/templatetags/tracker_filters.py

@@ -0,0 +1,11 @@
+from django import template
+
+from tracker.utils import markdown_to_html
+
+
+register = template.Library()
+
+
+@register.filter
+def markdown(value):
+    return markdown_to_html(value)

tracker/urls.py

@@ -2,6 +2,7 @@ from django.conf.urls import url, include
 
 
 urlpatterns = [
+    url(r'^markdown/$', 'tracker.views.markdown_preview', name='markdown'),
     # Administration: redirect on first available admin page
     url(r'^admin/$', 'tracker.views.admin', name='admin'),
     # Settings

tracker/utils.py

@@ -0,0 +1,8 @@
+from django.utils.safestring import mark_safe
+
+from markdown import markdown
+
+
+def markdown_to_html(value):
+    # set extensions here if needed
+    return mark_safe(markdown(value, safe_mode='escape'))

tracker/views.py

@@ -5,7 +5,9 @@ from django.contrib.auth.decorators import login_required
 from django.views.decorators.http import require_http_methods
 from django.conf import settings
 from django.core.urlresolvers import reverse
+from django.http import HttpResponse
 
+from tracker.utils import markdown_to_html
 from tracker.forms import *
 from tracker.models import *
 from tracker.notifications import *
@@ -16,6 +18,16 @@ from permissions.decorators import project_perm_required
 import shlex
 
 
+####################
+# Markdown preview #
+####################
+
+@login_required
+def markdown_preview(request):
+    content = request.POST.get('data', '')
+    return HttpResponse(markdown_to_html(content))
+
+
 #########
 # Admin #
 #########