taiga-back/taiga/mdrender/extensions/references.py

88 lines
3.1 KiB
Python

# -*- coding: utf-8 -*-
# Tested on Markdown 2.3.1
#
# Copyright (c) 2014, Esteban Castro Borsani
# The MIT License (MIT)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
from markdown.extensions import Extension
from markdown.inlinepatterns import Pattern
from markdown.util import etree
from taiga.projects.references.services import get_instance_by_ref
class TaigaReferencesExtension(Extension):
def __init__(self, project, *args, **kwargs):
self.project = project
return super().__init__(*args, **kwargs)
def extendMarkdown(self, md, md_globals):
TAIGA_REFERENCE_RE = r'(?<=^|(?<=[^a-zA-Z0-9-\[]))#(\d+)'
referencesPattern = TaigaReferencesPattern(TAIGA_REFERENCE_RE, self.project)
referencesPattern.md = md
md.inlinePatterns.add('taiga-references', referencesPattern, '_begin')
class TaigaReferencesPattern(Pattern):
def __init__(self, pattern, project):
self.project = project
super().__init__(pattern)
def handleMatch(self, m):
obj_ref = m.group(2)
instance = get_instance_by_ref(self.project.id, obj_ref)
if instance is None:
return "#{}".format(obj_ref)
subject = instance.content_object.subject
if instance.content_type.model == "userstory":
obj_section = "user-story"
html_classes = "reference user-story"
elif instance.content_type.model == "task":
obj_section = "tasks"
html_classes = "reference task"
elif instance.content_type.model == "issue":
obj_section = "issues"
html_classes = "reference issue"
else:
return "#{}".format(obj_ref)
url = "/project/{}/{}/{}".format(
self.project.slug,
obj_section,
obj_ref
)
link_text = "&num;{}".format(obj_ref)
a = etree.Element('a')
a.text = link_text
a.set('href', url)
a.set('alt', subject)
a.set('title', subject)
a.set('class', html_classes)
self.md.extracted_data['references'].append(instance.content_object)
return a