godot-docs/extensions/sphinx_tabs/tabs.py

272 lines
8.0 KiB
Python

""" Tabbed views for Sphinx, with HTML builder """
import base64
import json
import posixpath
import os
from docutils.parsers.rst import Directive
from docutils import nodes
from pygments.lexers import get_all_lexers
from sphinx.util.osutil import copyfile
DIR = os.path.dirname(os.path.abspath(__file__))
FILES = [
'tabs.js',
'tabs.css',
'semantic-ui-2.2.10/segment.min.css',
'semantic-ui-2.2.10/menu.min.css',
'semantic-ui-2.2.10/tab.min.css',
'semantic-ui-2.2.10/tab.min.js',
]
LEXER_MAP = {}
for lexer in get_all_lexers():
for short_name in lexer[1]:
LEXER_MAP[short_name] = lexer[0]
class TabsDirective(Directive):
""" Top-level tabs directive """
has_content = True
def run(self):
""" Parse a tabs directive """
self.assert_has_content()
env = self.state.document.settings.env
node = nodes.container()
node['classes'] = ['sphinx-tabs']
tabs_node = nodes.container()
tabs_node.tagname = 'div'
classes = 'ui top attached tabular menu sphinx-menu'
tabs_node['classes'] = classes.split(' ')
env.temp_data['tab_titles'] = []
env.temp_data['is_first_tab'] = True
self.state.nested_parse(self.content, self.content_offset, node)
tab_titles = env.temp_data['tab_titles']
for idx, [data_tab, tab_name] in enumerate(tab_titles):
tab = nodes.container()
tab.tagname = 'a'
tab['classes'] = ['item'] if idx > 0 else ['active', 'item']
tab['classes'].append(data_tab)
tab += tab_name
tabs_node += tab
node.children.insert(0, tabs_node)
return [node]
class TabDirective(Directive):
""" Tab directive, for adding a tab to a collection of tabs """
has_content = True
def run(self):
""" Parse a tab directive """
self.assert_has_content()
env = self.state.document.settings.env
args = self.content[0].strip()
try:
args = json.loads(args)
self.content.trim_start(1)
except ValueError:
args = {}
tab_name = nodes.container()
self.state.nested_parse(
self.content[:1], self.content_offset, tab_name)
args['tab_name'] = tab_name
if 'tab_id' not in args:
args['tab_id'] = env.new_serialno('tab_id')
data_tab = "sphinx-data-tab-{}".format(args['tab_id'])
env.temp_data['tab_titles'].append((data_tab, args['tab_name']))
text = '\n'.join(self.content)
node = nodes.container(text)
classes = 'ui bottom attached sphinx-tab tab segment'
node['classes'] = classes.split(' ')
node['classes'].extend(args.get('classes', []))
node['classes'].append(data_tab)
if env.temp_data['is_first_tab']:
node['classes'].append('active')
env.temp_data['is_first_tab'] = False
self.state.nested_parse(self.content[2:], self.content_offset, node)
return [node]
class GroupTabDirective(Directive):
""" Tab directive that toggles with same tab names across page"""
has_content = True
def run(self):
""" Parse a tab directive """
self.assert_has_content()
group_name = self.content[0]
self.content.trim_start(2)
for idx, line in enumerate(self.content.data):
self.content.data[idx] = ' ' + line
tab_args = {
'tab_id': base64.b64encode(
group_name.encode('utf-8')).decode('utf-8')
}
new_content = [
'.. tab:: {}'.format(json.dumps(tab_args)),
' {}'.format(group_name),
'',
]
for idx, line in enumerate(new_content):
self.content.data.insert(idx, line)
self.content.items.insert(idx, (None, idx))
node = nodes.container()
self.state.nested_parse(self.content, self.content_offset, node)
return node.children
class CodeTabDirective(Directive):
""" Tab directive with a codeblock as its content"""
has_content = True
def run(self):
""" Parse a tab directive """
self.assert_has_content()
args = self.content[0].strip().split()
self.content.trim_start(2)
lang = args[0]
tab_name = ' '.join(args[1:]) if len(args) > 1 else LEXER_MAP[lang]
for idx, line in enumerate(self.content.data):
self.content.data[idx] = ' ' + line
tab_args = {
'tab_id': '-'.join(tab_name.lower().split()),
'classes': ['code-tab'],
}
new_content = [
'.. tab:: {}'.format(json.dumps(tab_args)),
' {}'.format(tab_name),
'',
' .. code-block:: {}'.format(lang),
'',
]
for idx, line in enumerate(new_content):
self.content.data.insert(idx, line)
self.content.items.insert(idx, (None, idx))
node = nodes.container()
self.state.nested_parse(self.content, self.content_offset, node)
return node.children
class _FindTabsDirectiveVisitor(nodes.NodeVisitor):
""" Visitor pattern than looks for a sphinx tabs
directive in a document """
def __init__(self, document):
nodes.NodeVisitor.__init__(self, document)
self._found = False
def unknown_visit(self, node):
if not self._found and isinstance(node, nodes.container) and \
'classes' in node and isinstance(node['classes'], list):
self._found = 'sphinx-tabs' in node['classes']
@property
def found_tabs_directive(self):
""" Return whether a sphinx tabs directive was found """
return self._found
# pylint: disable=unused-argument
def add_assets(app, pagename, templatename, context, doctree):
""" Add CSS and JS asset files """
if doctree is None:
return
visitor = _FindTabsDirectiveVisitor(doctree)
doctree.walk(visitor)
assets = ['sphinx_tabs/' + f for f in FILES]
css_files = [posixpath.join('_static', path)
for path in assets if path.endswith('css')]
script_files = [posixpath.join('_static', path)
for path in assets if path.endswith('js')]
if visitor.found_tabs_directive:
if 'css_files' not in context:
context['css_files'] = css_files
else:
context['css_files'].extend(css_files)
if 'script_files' not in context:
context['script_files'] = script_files
else:
context['script_files'].extend(script_files)
else:
for path in css_files:
if 'css_files' in context and path in context['css_files']:
context['css_files'].remove(path)
for path in script_files:
if 'script_files' in context and path in context['script_files']:
context['script_files'].remove(path)
# pylint: enable=unused-argument
def copy_assets(app, exception):
""" Copy asset files to the output """
builders = ('html', 'readthedocs', 'readthedocssinglehtmllocalmedia',
'singlehtml')
if app.builder.name not in builders:
app.warn('Not copying tabs assets! Not compatible with %s builder' %
app.builder.name)
return
if exception:
app.warn('Not copying tabs assets! Error occurred previously')
return
app.info('Copying tabs assets... ', nonl=True)
installdir = os.path.join(app.builder.outdir, '_static', 'sphinx_tabs')
for path in FILES:
source = os.path.join(DIR, path)
dest = os.path.join(installdir, path)
destdir = os.path.dirname(dest)
if not os.path.exists(destdir):
os.makedirs(destdir)
copyfile(source, dest)
app.info('done')
def setup(app):
""" Set up the plugin """
app.add_directive('tabs', TabsDirective)
app.add_directive('tab', TabDirective)
app.add_directive('group-tab', GroupTabDirective)
app.add_directive('code-tab', CodeTabDirective)
app.connect('html-page-context', add_assets)
app.connect('build-finished', copy_assets)