def load(self, ctx=None):
rendererFactoryClass = None
if ctx is not None:
r = inevow.IRendererFactory(ctx, None)
if r is not None:
rendererFactoryClass = getClass(r)
cacheKey = (self._filename, self.pattern, rendererFactoryClass)
try:
cachedModified, doc = self._cache[cacheKey]
except KeyError:
cachedModified = doc = None
currentModified = os.path.getmtime(self._filename)
if currentModified == cachedModified:
return doc
doc = flatsax.parse(open(self._filename), self.ignoreDocType, self.ignoreComment)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
self._mtime = currentModified
self._cache[cacheKey] = currentModified, doc
return doc
def load(self, ctx=None):
if self._cache is None:
stan = flat.precompile(self.stan, ctx)
if self.pattern is not None:
stan = inevow.IQ(stan).onePattern(self.pattern)
self._cache = stan
return self._cache
def SlotSerializer(original, context):
"""
Serialize a slot.
If the value is already available in the given context, serialize and
return it. Otherwise, if this is a precompilation pass, return a new
kind of slot which captures the current render context, so that any
necessary quoting may be performed. Otherwise, raise an exception
indicating that the slot cannot be serialized.
"""
if context.precompile:
try:
data = context.locateSlotData(original.name)
except KeyError:
return _PrecompiledSlot(
original.name,
precompile(original.children, context),
original.default,
context.isAttrib,
context.inURL,
context.inJS,
context.inJSSingleQuoteString,
original.filename,
original.lineNumber,
original.columnNumber,
)
else:
return serialize(data, context)
try:
data = context.locateSlotData(original.name)
except KeyError:
if original.default is None:
raise
data = original.default
return serialize(data, context)
def load(self, ctx=None):
if self._cache is None:
stan = flat.precompile(self.stan, ctx)
if self.pattern is not None:
stan = inevow.IQ(stan).onePattern(self.pattern)
self._cache = stan
return self._cache
def test_reloadAfterPrecompile(self):
"""
"""
# Get a filename
temp = self.mktemp()
# Write some content
f = file(temp, 'w')
f.write('<p>foo</p>')
f.close()
# Precompile the doc
ctx = context.WovenContext()
doc = loaders.htmlfile(temp)
pc = flat.precompile(flat.flatten(doc), ctx)
before = ''.join(flat.serialize(pc, ctx))
# Write the file with different content and make sure the
# timestamp changes
f = file(temp, 'w')
f.write('<p>bar</p>')
f.close()
os.utime(temp, (os.path.getatime(temp), os.path.getmtime(temp)+5))
after = ''.join(flat.serialize(pc, ctx))
self.assertIn('foo', before)
self.assertIn('bar', after)
self.failIfEqual(before, after)
def SlotSerializer(original, context):
"""
Serialize a slot.
If the value is already available in the given context, serialize and
return it. Otherwise, if this is a precompilation pass, return a new
kind of slot which captures the current render context, so that any
necessary quoting may be performed. Otherwise, raise an exception
indicating that the slot cannot be serialized.
"""
if context.precompile:
try:
data = context.locateSlotData(original.name)
except KeyError:
return _PrecompiledSlot(original.name,
precompile(original.children, context),
original.default, context.isAttrib,
context.inURL, context.inJS,
context.inJSSingleQuoteString)
else:
return serialize(data, context)
try:
data = context.locateSlotData(original.name)
except KeyError:
if original.default is None:
raise
data = original.default
return serialize(data, context)
def load(self, ctx=None):
if self._cache is None:
doc = flatsax.parseString(self.template, self.ignoreDocType, self.ignoreComment)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
self._cache = doc
return self._cache
def load(self, ctx=None):
if self._cache is None:
doc = flatsax.parseString(self.template, self.ignoreDocType, self.ignoreComment)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
self._cache = doc
return self._cache
def precompile(self, parent):
ctx = context.WovenContext(parent=parent, precompile=True)
from nevow import flat
doc = flat.precompile(self.getDoc(), ctx)
if self.pattern:
tag = tags.invisible[doc]
doc = [tag.onePattern(self.pattern)]
return doc
def precompile(self, parent):
ctx = context.WovenContext(parent=parent, precompile=True)
from nevow import flat
doc = flat.precompile(self.getDoc(), ctx)
if self.pattern:
tag = tags.invisible[doc]
doc = [tag.onePattern(self.pattern)]
return doc
def MicroDomElementSerializer(element, context):
directiveMapping = {
'render': 'render',
'data': 'data',
'macro': 'macro',
}
attributeList = [
'pattern',
'key',
]
name = element.tagName
if name.startswith('nevow:'):
_, name = name.split(':')
if name == 'invisible':
name = ''
elif name == 'slot':
return slot(element.attributes['name'])[precompile(
serialize(element.childNodes, context), context)]
attrs = dict(element.attributes) # get rid of CaseInsensitiveDict
specials = {}
attributes = attributeList
directives = directiveMapping
for k, v in list(attrs.items()):
# I know, this is totally not the way to do xml namespaces but who cares right now
## I'll fix it later -dp
### no you won't *I'll* fix it later -glyph
if isinstance(k, tuple):
if k[0] != 'http://nevow.com/ns/nevow/0.1':
continue
else:
nons = k[1]
elif not k.startswith('nevow:'):
continue
else:
_, nons = k.split(':')
if nons in directives:
## clean this up by making the names more consistent
specials[directives[nons]] = directive(v)
del attrs[k]
if nons in attributes:
specials[nons] = v
del attrs[k]
# TODO: there must be a better way than this ...
# Handle any nevow:attr elements. If we don't do it now then this tag will
# be serialised and it will too late.
childNodes = []
for child in element.childNodes:
if getattr(child, 'tagName', None) == 'nevow:attr':
attrs[child.attributes['name']] = child.childNodes
else:
childNodes.append(child)
tag = Tag(name, attributes=attrs, children=childNodes, specials=specials)
return serialize(tag, context)
def load(self, ctx=None, preprocessors=()):
assert not preprocessors, "preprocessors not supported by htmlstr"
if self._cache is None:
doc = microdom.parseString(self.template, beExtremelyLenient=self.beExtremelyLenient)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
self._cache = doc
return self._cache
def load(self, ctx=None):
if self._cache is None:
from twisted.web import microdom
doc = microdom.parseString(self.template, beExtremelyLenient=self.beExtremelyLenient)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
self._cache = doc
return self._cache
def load(self, ctx=None):
if self._cache is None:
from twisted.web import microdom
doc = microdom.parseString(self.template, beExtremelyLenient=self.beExtremelyLenient)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
self._cache = doc
return self._cache
def testXML(self):
t = '<a xmlns:n="http://nevow.com/ns/nevow/0.1" href="#"><n:attr name="href">href</n:attr>label</a>'
result = flat.flatten(loaders.xmlstr(t).load())
self.assertEqual(result, '<a href="href">label</a>')
t = '<a xmlns:n="http://nevow.com/ns/nevow/0.1" href="#"><n:attr name="href"><n:slot name="href"/></n:attr>label</a>'
ctx = context.WovenContext()
ctx.fillSlots('href', 'href')
result = flat.flatten(flat.precompile(loaders.xmlstr(t).load()), ctx)
self.assertEqual(result, '<a href="href">label</a>')
def testXML(self):
t = '<a xmlns:n="http://nevow.com/ns/nevow/0.1" href="#"><n:attr name="href">href</n:attr>label</a>'
result = flat.flatten(loaders.xmlstr(t).load())
self.assertEqual(result, '<a href="href">label</a>')
t = '<a xmlns:n="http://nevow.com/ns/nevow/0.1" href="#"><n:attr name="href"><n:slot name="href"/></n:attr>label</a>'
ctx = context.WovenContext()
ctx.fillSlots('href', 'href')
result = flat.flatten(flat.precompile(loaders.xmlstr(t).load()), ctx)
self.assertEqual(result, '<a href="href">label</a>')
def load(self, ctx=None, preprocessors=()):
assert not preprocessors, "preprocessors not supported by htmlstr"
if self._cache is None:
doc = microdom.parseString(
self.template, beExtremelyLenient=self.beExtremelyLenient)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
self._cache = doc
return self._cache
def load(self, ctx=None, preprocessors=()):
if self._cache is None:
stan = [self.stan]
for proc in preprocessors:
stan = proc(stan)
stan = flat.precompile(stan, ctx)
if self.pattern is not None:
stan = inevow.IQ(stan).onePattern(self.pattern)
self._cache = stan
return self._cache
def _reallyLoad(self, path, ctx, preprocessors):
doc = flatsax.parse(open(self._filename), self.ignoreDocType, self.ignoreComment)
for proc in preprocessors:
doc = proc(doc)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
return doc
def load(self, ctx=None, preprocessors=()):
if self._cache is None:
stan = [self.stan]
for proc in preprocessors:
stan = proc(stan)
stan = flat.precompile(stan, ctx)
if self.pattern is not None:
stan = inevow.IQ(stan).onePattern(self.pattern)
self._cache = stan
return self._cache
def testHTML(self):
t = '<a href="#"><nevow:attr name="href">href</nevow:attr>label</a>'
doc = flat.flatten(loaders.htmlstr(t).load())
self.assertEqual(doc, '<a href="href">label</a>')
t = '<a href="#"><nevow:attr name="href"><nevow:slot name="href"/></nevow:attr>label</a>'
ctx = context.WovenContext()
ctx.fillSlots('href', 'href')
precompiled = flat.precompile(loaders.htmlstr(t).load())
result = flat.flatten(precompiled, ctx)
self.assertEqual(result, '<a href="href">label</a>')
def testHTML(self):
t = '<a href="#"><nevow:attr name="href">href</nevow:attr>label</a>'
doc = flat.flatten(loaders.htmlstr(t).load())
self.assertEqual(doc, '<a href="href">label</a>')
t = '<a href="#"><nevow:attr name="href"><nevow:slot name="href"/></nevow:attr>label</a>'
ctx = context.WovenContext()
ctx.fillSlots('href', 'href')
precompiled = flat.precompile(loaders.htmlstr(t).load())
result = flat.flatten(precompiled, ctx)
self.assertEqual(result, '<a href="href">label</a>')
def MicroDomElementSerializer(element, context):
directiveMapping = {
'render': 'render',
'data': 'data',
'macro': 'macro',
}
attributeList = [
'pattern', 'key',
]
name = element.tagName
if name.startswith('nevow:'):
_, name = name.split(':')
if name == 'invisible':
name = ''
elif name == 'slot':
return slot(element.attributes['name'])[
precompile(serialize(element.childNodes, context), context)]
attrs = dict(element.attributes) # get rid of CaseInsensitiveDict
specials = {}
attributes = attributeList
directives = directiveMapping
for k, v in attrs.items():
# I know, this is totally not the way to do xml namespaces but who cares right now
## I'll fix it later
if not k.startswith('nevow:'):
continue
_, nons = k.split(':')
if nons in directives:
## clean this up by making the names more consistent
specials[directives[nons]] = directive(v)
del attrs[k]
if nons in attributes:
specials[nons] = v
del attrs[k]
# TODO: there must be a better way than this ...
# Handle any nevow:attr elements. If we don't do it now then this tag will
# be serialised and it will too late.
childNodes = []
for child in element.childNodes:
if getattr(child,'tagName',None) == 'nevow:attr':
attrs[child.attributes['name']] = child.childNodes
else:
childNodes.append(child)
tag = Tag(
name,
attributes=attrs,
children=childNodes,
specials=specials
)
return serialize(tag, context)
def _reallyLoad(self, path, ctx, preprocessors):
doc = flatsax.parse(open(self._filename), self.ignoreDocType,
self.ignoreComment)
for proc in preprocessors:
doc = proc(doc)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
return doc
def load(self, ctx=None):
mtime, doc = self._cache.get((self._filename, self.pattern), (None,None))
self._mtime = os.path.getmtime(self._filename)
if mtime == self._mtime:
return doc
doc = flatsax.parse(open(self._filename), self.ignoreDocType, self.ignoreComment)
doc = flat.precompile(doc)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
self._cache[(self._filename, self.pattern)] = self._mtime, doc
return doc
def load(self, ctx=None):
mtime, doc = self._cache.get((self._filename, self.pattern), (None,None))
self._mtime = os.path.getmtime(self._filename)
if mtime == self._mtime:
return doc
doc = flatsax.parse(open(self._filename), self.ignoreDocType, self.ignoreComment)
doc = flat.precompile(doc)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
self._cache[(self._filename, self.pattern)] = self._mtime, doc
return doc
def load(self, ctx=None):
mtime = os.path.getmtime(self._filename)
if mtime != self._mtime or self._cache is None:
from twisted.web import microdom
doc = microdom.parse(self._filename, beExtremelyLenient=self.beExtremelyLenient)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
self._mtime = mtime
self._cache = doc
return self._cache
def load(self, ctx=None):
mtime = os.path.getmtime(self._filename)
if mtime != self._mtime or self._cache is None:
from twisted.web import microdom
doc = microdom.parse(self._filename, beExtremelyLenient=self.beExtremelyLenient)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
self._mtime = mtime
self._cache = doc
return self._cache
def render(self, tag, precompile=False, data=None, setupRequest=lambda r: r, setupContext=lambda c:c, wantDeferred=False):
ctx = self.setupContext(precompile, setupRequest)
ctx = setupContext(ctx)
if precompile:
return flat.precompile(tag, ctx)
else:
if wantDeferred:
L = []
D = twist.deferflatten(tag, ctx, L.append)
D.addCallback(lambda igresult: ''.join(L))
return D
else:
return flat.flatten(tag, ctx)
def render(self, tag, precompile=False, data=None, setupRequest=lambda r: r, setupContext=lambda c:c, wantDeferred=False):
ctx = self.setupContext(precompile, setupRequest)
ctx = setupContext(ctx)
if precompile:
return flat.precompile(tag, ctx)
else:
if wantDeferred:
L = []
D = twist.deferflatten(tag, ctx, L.append)
D.addCallback(lambda igresult: ''.join(L))
return D
else:
return flat.flatten(tag, ctx)
def load(self, ctx=None, preprocessors=()):
"""
Get an instance, possibly cached from a previous call, of this document
"""
if self._cache is None:
doc = flatsax.parseString(self.template, self.ignoreDocType, self.ignoreComment)
for proc in preprocessors:
doc = proc(doc)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
self._cache = doc
return self._cache
def MicroDomElementSerializer(element, context):
directiveMapping = {"render": "render", "data": "data", "macro": "macro"}
attributeList = ["pattern", "key"]
name = element.tagName
if name.startswith("nevow:"):
_, name = name.split(":")
if name == "invisible":
name = ""
elif name == "slot":
return slot(element.attributes["name"])[precompile(serialize(element.childNodes, context), context)]
attrs = dict(element.attributes) # get rid of CaseInsensitiveDict
specials = {}
attributes = attributeList
directives = directiveMapping
for k, v in attrs.items():
# I know, this is totally not the way to do xml namespaces but who cares right now
## I'll fix it later -dp
### no you won't *I'll* fix it later -glyph
if isinstance(k, tuple):
if k[0] != "http://nevow.com/ns/nevow/0.1":
continue
else:
nons = k[1]
elif not k.startswith("nevow:"):
continue
else:
_, nons = k.split(":")
if nons in directives:
## clean this up by making the names more consistent
specials[directives[nons]] = directive(v)
del attrs[k]
if nons in attributes:
specials[nons] = v
del attrs[k]
# TODO: there must be a better way than this ...
# Handle any nevow:attr elements. If we don't do it now then this tag will
# be serialised and it will too late.
childNodes = []
for child in element.childNodes:
if getattr(child, "tagName", None) == "nevow:attr":
attrs[child.attributes["name"]] = child.childNodes
else:
childNodes.append(child)
tag = Tag(name, attributes=attrs, children=childNodes, specials=specials)
return serialize(tag, context)
def SlotSerializer(original, context):
if context.precompile:
try:
return serialize(context.locateSlotData(original.name), context)
except KeyError:
original.children = precompile(original.children, context)
return original
try:
data = context.locateSlotData(original.name)
except KeyError:
if original.default is None:
raise
return serialize(original.default, context)
return serialize(data, context)
def load(self, ctx=None, preprocessors=()):
"""
Get an instance, possibly cached from a previous call, of this document
"""
if self._cache is None:
doc = flatsax.parseString(self.template, self.ignoreDocType,
self.ignoreComment)
for proc in preprocessors:
doc = proc(doc)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
self._cache = doc
return self._cache
def test_stanPrecompiled(self):
"""
Test that a stan loader works with precompiled documents.
(This behavior will probably be deprecated soon, but we need to test
that it works right until we remove it.)
"""
doc = flat.precompile(t.ul(id='nav')[t.li['one'], t.li['two'], t.slot('three')])
df = loaders.stan(doc)
loaded = df.load()
self.assertEqual(loaded[0], '<ul id="nav"><li>one</li><li>two</li>')
self.failUnless(isinstance(loaded[1], _PrecompiledSlot))
self.assertEqual(loaded[1].name, 'three')
self.assertEqual(loaded[2], '</ul>')
def SlotSerializer(original, context):
if context.precompile:
try:
return serialize(context.locateSlotData(original.name), context)
except KeyError:
original.children = precompile(original.children, context)
return original
try:
data = context.locateSlotData(original.name)
except KeyError:
if original.default is None:
raise
return serialize(original.default, context)
return serialize(data, context)
def render(self, tag, precompile=False, data=None, setupRequest=lambda r: r, setupContext=lambda c:c):
ctx = self.setupContext(precompile, setupRequest)
ctx = setupContext(ctx)
if precompile:
return flat.precompile(tag, ctx)
else:
try:
from twisted.trial import util
from nevow.flat import twist
except ImportError:
return flat.flatten(tag, ctx)
else:
L = []
util.deferredResult(twist.deferflatten(tag, ctx, L.append))
return ''.join(L)
def MicroDomElementSerializer(element, context):
directiveMapping = {
'render': 'render',
'data': 'data',
'macro': 'macro',
}
attributeList = [
'pattern', 'key',
]
name = element.tagName
if name.startswith('nevow:'):
_, name = name.split(':')
if name == 'invisible':
name = ''
elif name == 'slot':
return slot(element.attributes['name'])[
precompile(serialize(element.childNodes, context), context)]
attrs = dict(element.attributes) # get rid of CaseInsensitiveDict
specials = {}
attributes = attributeList
directives = directiveMapping
for k, v in attrs.items():
if not k.startswith('nevow:'):
continue
_, nons = k.split(':')
if nons in directives:
specials[directives[nons]] = directive(v)
del attrs[k]
if nons in attributes:
specials[nons] = v
del attrs[k]
childNodes = []
for child in element.childNodes:
if getattr(child,'tagName',None) == 'nevow:attr':
attrs[child.attributes['name']] = child.childNodes
else:
childNodes.append(child)
tag = Tag(
name,
attributes=attrs,
children=childNodes,
specials=specials
)
return serialize(tag, context)
def test_reloadAfterPrecompile(self):
"""
"""
temp = self.mktemp()
f = file(temp, 'w')
f.write('<p>foo</p>')
f.close()
ctx = context.WovenContext()
doc = loaders.htmlfile(temp)
pc = flat.precompile(flat.flatten(doc), ctx)
before = ''.join(flat.serialize(pc, ctx))
f = file(temp, 'w')
f.write('<p>bar</p>')
f.close()
os.utime(temp, (os.path.getatime(temp), os.path.getmtime(temp)+5))
after = ''.join(flat.serialize(pc, ctx))
self.assertIn('foo', before)
self.assertIn('bar', after)
self.failIfEqual(before, after)
def render(self,
tag,
precompile=False,
data=None,
setupRequest=lambda r: r,
setupContext=lambda c: c):
ctx = self.setupContext(precompile, setupRequest)
ctx = setupContext(ctx)
if precompile:
return flat.precompile(tag, ctx)
else:
try:
from twisted.trial import util
from nevow.flat import twist
except ImportError:
return flat.flatten(tag, ctx)
else:
L = []
util.deferredResult(twist.deferflatten(tag, ctx, L.append))
return ''.join(L)
def testListGenerators(self):
self.verify(IQ(flat.precompile(multiple)).patternGenerator('foo'))
def testListMissing(self):
self.assertRaises(stan.NodeNotFound,
IQ(flat.precompile(notEnough)).patternGenerator,
'foo')
def testClonableDefault(self):
orig = tags.p["Hello"]
gen = IQ(flat.precompile(notEnough)).patternGenerator('foo', orig)
new = gen.next()
self.assertEquals(new.tagName, 'p')
self.assertNotIdentical(orig, new)
def testNonClonableDefault(self):
gen = IQ(flat.precompile(notEnough)).patternGenerator('foo', 'bar')
new = gen.next()
self.assertEquals(new, 'bar')
def test_listQuery(self):
return self._testQuery(flat.precompile(self._simpleStan),
self._patternDiv)
def _reallyLoad(self, path, ctx):
doc = microdom.parse(path, beExtremelyLenient=self.beExtremelyLenient)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
return doc
def test_precompilePatternWithNoChildren(self):
tag = tags.img(pattern='item')
pc = flat.precompile(tag)
self.assertEquals(pc[0].tag.children, [])
def test_listTooMany(self):
P = flat.precompile(tooMany)
self.assertRaises(stan.TooManyNodes, IQ(P).onePattern, 'foo')
def test_listNotEnough(self):
P = flat.precompile(notEnough)
self.assertRaises(stan.NodeNotFound, IQ(P).onePattern, 'foo')
def testListPatterns(self):
self.verify(
IQ(flat.precompile(multiple)).allPatterns('foo'))
def _reallyLoad(self, path, ctx):
doc = microdom.parse(path, beExtremelyLenient=self.beExtremelyLenient)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
return doc
def TagSerializer(original, context, contextIsMine=False):
"""
Original is the tag.
Context is either:
- the context of someone up the chain (if contextIsMine is False)
- this tag's context (if contextIsMine is True)
"""
# print "TagSerializer:",original, "ContextIsMine",contextIsMine, "Context:",context
visible = bool(original.tagName)
if visible and context.isAttrib:
raise RuntimeError, "Tried to render tag '%s' in an tag attribute context." % (
original.tagName)
if context.precompile and original.macro:
toBeRenderedBy = original.macro
## Special case for directive; perhaps this could be handled some other way with an interface?
if isinstance(toBeRenderedBy, directive):
toBeRenderedBy = IMacroFactory(context).macro(
context, toBeRenderedBy.name)
original.macro = Unset
newContext = WovenContext(context, original)
yield serialize(toBeRenderedBy(newContext), newContext)
return
## TODO: Do we really need to bypass precompiling for *all* specials?
## Perhaps just render?
if context.precompile and ([
x for x in original._specials.values()
if x is not None and x is not Unset
] or original.slotData):
## The tags inside this one get a "fresh" parent chain, because
## when the context yielded here is serialized, the parent
## chain gets reconnected to the actual parents at that
## point, since the render function here could change
## the actual parentage hierarchy.
nestedcontext = WovenContext(precompile=context.precompile,
isAttrib=context.isAttrib)
# If necessary, remember the MacroFactory onto the new context chain.
macroFactory = IMacroFactory(context, None)
if macroFactory is not None:
nestedcontext.remember(macroFactory, IMacroFactory)
original = original.clone(deep=False)
if not contextIsMine:
context = WovenContext(context, original)
context.tag.children = precompile(context.tag.children, nestedcontext)
yield context
return
## Don't render patterns
if original.pattern is not Unset and original.pattern is not None:
return
if not contextIsMine:
if original.render:
### We must clone our tag before passing to a render function
original = original.clone(deep=False)
context = WovenContext(context, original)
if original.data is not Unset:
newdata = convertToData(original.data, context)
if isinstance(newdata, util.Deferred):
yield newdata.addCallback(
lambda newdata: _datacallback(newdata, context))
else:
_datacallback(newdata, context)
if original.render:
## If we have a render function we want to render what it returns,
## not our tag
toBeRenderedBy = original.render
# erase special attribs so if the renderer returns the tag,
# the specials won't be on the context twice.
original._clearSpecials()
yield serialize(toBeRenderedBy, context)
return
if not visible:
for child in original.children:
yield serialize(child, context)
return
yield '<%s' % original.tagName
if original.attributes:
attribContext = WovenContext(parent=context,
precompile=context.precompile,
isAttrib=True)
for (k, v) in original.attributes.iteritems():
if v is None:
continue
yield ' %s="' % k
yield serialize(v, attribContext)
yield '"'
if not original.children:
if original.tagName in allowSingleton:
yield ' />'
else:
yield '></%s>' % original.tagName
else:
yield '>'
for child in original.children:
yield serialize(child, context)
yield '</%s>' % original.tagName
def testListGenerators(self):
self.verify(
IQ(flat.precompile(multiple)).patternGenerator('foo'))
def testListPatterns(self):
self.verify(IQ(flat.precompile(multiple)).allPatterns('foo'))
def TagSerializer(original, context, contextIsMine=False):
"""
Original is the tag.
Context is either:
- the context of someone up the chain (if contextIsMine is False)
- this tag's context (if contextIsMine is True)
"""
# print "TagSerializer:",original, "ContextIsMine",contextIsMine, "Context:",context
visible = bool(original.tagName)
if visible and context.isAttrib:
raise RuntimeError("Tried to render tag '%s' in an tag attribute context." % (original.tagName))
if context.precompile and original.macro:
toBeRenderedBy = original.macro
## Special case for directive; perhaps this could be handled some other way with an interface?
if isinstance(toBeRenderedBy, directive):
toBeRenderedBy = IMacroFactory(context).macro(context, toBeRenderedBy.name)
original.macro = Unset
newContext = WovenContext(context, original)
yield serialize(toBeRenderedBy(newContext), newContext)
return
## TODO: Do we really need to bypass precompiling for *all* specials?
## Perhaps just render?
if context.precompile and (
[x for x in list(original._specials.values()) if x is not None and x is not Unset] or original.slotData
):
## The tags inside this one get a "fresh" parent chain, because
## when the context yielded here is serialized, the parent
## chain gets reconnected to the actual parents at that
## point, since the render function here could change
## the actual parentage hierarchy.
nestedcontext = WovenContext(precompile=context.precompile, isAttrib=context.isAttrib)
# If necessary, remember the MacroFactory onto the new context chain.
macroFactory = IMacroFactory(context, None)
if macroFactory is not None:
nestedcontext.remember(macroFactory, IMacroFactory)
original = original.clone(deep=False)
if not contextIsMine:
context = WovenContext(context, original)
context.tag.children = precompile(context.tag.children, nestedcontext)
yield context
return
## Don't render patterns
if original.pattern is not Unset and original.pattern is not None:
return
if not contextIsMine:
if original.render:
### We must clone our tag before passing to a render function
original = original.clone(deep=False)
context = WovenContext(context, original)
if original.data is not Unset:
newdata = convertToData(original.data, context)
if isinstance(newdata, util.Deferred):
yield newdata.addCallback(lambda newdata: _datacallback(newdata, context))
else:
_datacallback(newdata, context)
if original.render:
## If we have a render function we want to render what it returns,
## not our tag
toBeRenderedBy = original.render
# erase special attribs so if the renderer returns the tag,
# the specials won't be on the context twice.
original._clearSpecials()
yield serialize(toBeRenderedBy, context)
return
if not visible:
for child in original.children:
yield serialize(child, context)
return
yield "<%s" % original.tagName
if original.attributes:
attribContext = WovenContext(parent=context, precompile=context.precompile, isAttrib=True)
for (k, v) in sorted(original.attributes.items()):
if v is None:
continue
yield ' %s="' % k
yield serialize(v, attribContext)
yield '"'
if not original.children:
if original.tagName in allowSingleton:
yield " />"
else:
yield "></%s>" % original.tagName
else:
yield ">"
for child in original.children:
yield serialize(child, context)
yield "</%s>" % original.tagName
def test_precompiledSlotQuery(self):
return self._testQuery(flat.precompile(self._simpleSlot),
self._patternDiv)
def test_precompiledTooManySiblingPatterns(self):
"""
Like L{test_stanTooManySiblingPatterns} but for a precompiled document.
"""
P = flat.precompile(self._tooManyPatternsSiblingStan)
return self._testTooManyPatterns(P)
def test_precompilePatternWithNoChildren(self):
tag = tags.img(pattern='item')
pc = flat.precompile(tag)
self.assertEqual(pc[0].tag.children, [])
