def transpose_headlines(value, x):
"""
Transpose existing headlines within the given html by the given
amount of levels, for example a transpose of headlines by a level of 1
would change every h1 headline into a h2 headline, every h2 headline into
a h3 headline and so forth. The max. number of headlines supported by html
is h6, therefore transposing an h6 would result into an h6.
"""
try:
level = int(x)
except ValueError:
return value
return transpose_html_headlines(value, level)
def cms_content(context, content, headline_transpose=0, image_shape=None):
"""
Renders cms content.
"""
if content is None:
return ''
# run through content pipeline
cms = get_cms()
request = context.get('request')
content = cms.on_render_content_pipeline(request, content, context)
# make sure that headline transpose is an integer we can work with
try:
headline_transpose = int(headline_transpose)
except ValueError:
headline_transpose = 0
preview = value_or_default('cms_preview', context, False)
# lazy-loaded images (not in preview mode)
if not preview and 'cubane.media' in settings.INSTALLED_APPS:
from cubane.media.templatetags.media_tags import render_image
images = context.get('images', {})
images = load_images_for_content(content, images)
noscript = value_or_default('noscript', context, False)
content = rewrite_images(content, images, render_image, noscript,
image_shape)
# page links
if not preview:
page_links = context.get('page_links', {})
page_links = get_page_links_from_content(content, preview)
content = rewrite_page_links(content, page_links)
# transpose headlines
if headline_transpose > 0:
content = transpose_html_headlines(content, headline_transpose)
# cleanup markup
content = cleanup_html(content)
# frontend editing
return mark_safe(content)
def render(self, context):
"""
Render slot content.
"""
slotname = value_or_literal(self.slotname, context)
headline_transpose = value_or_literal(self.headline_transpose, context)
image_shape = value_or_literal(self.image_shape, context)
page = value_or_none('page', context)
child_page = value_or_none('child_page', context)
preview = value_or_default('cms_preview', context, False)
noscript = value_or_default('noscript', context, False)
images = context.get('images', {})
is_enquiry_template = value_or_default('is_enquiry_template', context,
False)
# make sure that this slot actually exists
if slotname not in settings.CMS_SLOTNAMES:
return template_error(
"Slot '%s' does not exist (referenced via %s)" %
(slotname, self.slotname))
# switch page to child_page if present
if child_page:
page = child_page
# extract correct content from page based on the slotname provided
if page:
content = page.get_slot_content(slotname)
else:
content = ''
# make sure that headline transpose is an integer we can work with
try:
headline_transpose = int(headline_transpose)
except ValueError:
headline_transpose = 0
# run through content pipeline
cms = get_cms()
request = context.get('request')
content = cms.on_render_content_pipeline(request, content, context)
# rewrite image url to use responsive lazy-load mechanism for images,
# (we are not doing this in preview mode).
if not preview and not is_enquiry_template and 'cubane.media' in settings.INSTALLED_APPS:
from cubane.media.templatetags.media_tags import render_image
content = rewrite_images(content, images, render_image, noscript,
image_shape)
# page links
if not preview:
page_links = context.get('page_links', {})
content = rewrite_page_links(content, page_links)
# transpose headlines
content = transpose_html_headlines(content, headline_transpose)
# cleanup markup
content = cleanup_html(content)
# mark content as safe
content = mark_safe(content)
# wrap content into a seperate slot container if we are configured
# to do so...
if settings.CMS_RENDER_SLOT_CONTAINER:
content = '<div class="cms-slot-container">' + content + '</div>'
# frontend editing?
if settings.CUBANE_FRONTEND_EDITING:
ref = get_edit_reference(request, page, ['slot_%s' % slotname])
if ref:
content = '<div edit="%s">%s</div>' % (ref, content)
# in preview mode, we wrap the content into a container, so that we
# can identify the content in the backend and provide live-editing
# preview capabilities...
if preview:
return '<div class="cms-slot" data-slotname="%s" data-headline-transpose="%d">%s</div>' % (
slotname, headline_transpose, content)
else:
return content
def test_should_not_transpose_h6_any_further(self):
self.assertEqual(
transpose_html_headlines('<h4>4</h4> <h5>5</h5> <h6>6</h6>', 2),
'<h6>4</h6> <h6>5</h6> <h6>6</h6>')
def test_should_transpose_case_insensetively(self):
self.assertEqual(
transpose_html_headlines(
'<H1>1</h1> <H2>2</h2> <h3>3</H3> <h4>4</H4> <H5>5</H5>', 1),
'<h2>1</h2> <h3>2</h3> <h4>3</h4> <h5>4</h5> <h6>5</h6>')
def test_should_transpose_by_level(self):
self.assertEqual(
transpose_html_headlines(
'<h1>1</h1> <h2>2</h2> <h3>3</h3> <h4>4</h4> <h5>5</h5>', 1),
'<h2>1</h2> <h3>2</h3> <h4>3</h4> <h5>4</h5> <h6>5</h6>')
def test_should_not_transpose_by_zero_or_negative_levels(self):
for i in range(0, 2):
self.assertEqual(transpose_html_headlines('<h3>x</h3>', -i),
'<h3>x</h3>')