from __future__ import absolute_import, division, unicode_literals
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try:
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from collections.abc import MutableMapping
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except ImportError: # Python 2.7
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from collections import MutableMapping
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from xml.dom import minidom, Node
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import weakref
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from . import base
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from .. import constants
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from ..constants import namespaces
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from .._utils import moduleFactoryFactory
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def getDomBuilder(DomImplementation):
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Dom = DomImplementation
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class AttrList(MutableMapping):
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def __init__(self, element):
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self.element = element
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def __iter__(self):
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return iter(self.element.attributes.keys())
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def __setitem__(self, name, value):
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if isinstance(name, tuple):
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raise NotImplementedError
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else:
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attr = self.element.ownerDocument.createAttribute(name)
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attr.value = value
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self.element.attributes[name] = attr
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def __len__(self):
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return len(self.element.attributes)
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def items(self):
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return list(self.element.attributes.items())
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def values(self):
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return list(self.element.attributes.values())
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def __getitem__(self, name):
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if isinstance(name, tuple):
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raise NotImplementedError
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else:
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return self.element.attributes[name].value
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def __delitem__(self, name):
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if isinstance(name, tuple):
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raise NotImplementedError
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else:
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del self.element.attributes[name]
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class NodeBuilder(base.Node):
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def __init__(self, element):
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base.Node.__init__(self, element.nodeName)
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self.element = element
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namespace = property(lambda self: hasattr(self.element, "namespaceURI") and
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self.element.namespaceURI or None)
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def appendChild(self, node):
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node.parent = self
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self.element.appendChild(node.element)
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def insertText(self, data, insertBefore=None):
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text = self.element.ownerDocument.createTextNode(data)
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if insertBefore:
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self.element.insertBefore(text, insertBefore.element)
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else:
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self.element.appendChild(text)
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def insertBefore(self, node, refNode):
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self.element.insertBefore(node.element, refNode.element)
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node.parent = self
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def removeChild(self, node):
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if node.element.parentNode == self.element:
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self.element.removeChild(node.element)
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node.parent = None
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def reparentChildren(self, newParent):
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while self.element.hasChildNodes():
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child = self.element.firstChild
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self.element.removeChild(child)
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newParent.element.appendChild(child)
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self.childNodes = []
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def getAttributes(self):
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return AttrList(self.element)
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def setAttributes(self, attributes):
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if attributes:
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for name, value in list(attributes.items()):
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if isinstance(name, tuple):
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if name[0] is not None:
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qualifiedName = (name[0] + ":" + name[1])
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else:
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qualifiedName = name[1]
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self.element.setAttributeNS(name[2], qualifiedName,
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value)
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else:
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self.element.setAttribute(
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name, value)
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attributes = property(getAttributes, setAttributes)
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def cloneNode(self):
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return NodeBuilder(self.element.cloneNode(False))
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def hasContent(self):
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return self.element.hasChildNodes()
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def getNameTuple(self):
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if self.namespace is None:
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return namespaces["html"], self.name
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else:
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return self.namespace, self.name
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nameTuple = property(getNameTuple)
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class TreeBuilder(base.TreeBuilder): # pylint:disable=unused-variable
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def documentClass(self):
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self.dom = Dom.getDOMImplementation().createDocument(None, None, None)
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return weakref.proxy(self)
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def insertDoctype(self, token):
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name = token["name"]
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publicId = token["publicId"]
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systemId = token["systemId"]
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domimpl = Dom.getDOMImplementation()
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doctype = domimpl.createDocumentType(name, publicId, systemId)
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self.document.appendChild(NodeBuilder(doctype))
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if Dom == minidom:
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doctype.ownerDocument = self.dom
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def elementClass(self, name, namespace=None):
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if namespace is None and self.defaultNamespace is None:
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node = self.dom.createElement(name)
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else:
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node = self.dom.createElementNS(namespace, name)
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return NodeBuilder(node)
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def commentClass(self, data):
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return NodeBuilder(self.dom.createComment(data))
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def fragmentClass(self):
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return NodeBuilder(self.dom.createDocumentFragment())
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def appendChild(self, node):
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self.dom.appendChild(node.element)
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def testSerializer(self, element):
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return testSerializer(element)
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def getDocument(self):
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return self.dom
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def getFragment(self):
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return base.TreeBuilder.getFragment(self).element
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def insertText(self, data, parent=None):
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data = data
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if parent != self:
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base.TreeBuilder.insertText(self, data, parent)
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else:
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# HACK: allow text nodes as children of the document node
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if hasattr(self.dom, '_child_node_types'):
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# pylint:disable=protected-access
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if Node.TEXT_NODE not in self.dom._child_node_types:
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self.dom._child_node_types = list(self.dom._child_node_types)
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self.dom._child_node_types.append(Node.TEXT_NODE)
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self.dom.appendChild(self.dom.createTextNode(data))
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implementation = DomImplementation
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name = None
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def testSerializer(element):
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element.normalize()
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rv = []
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def serializeElement(element, indent=0):
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if element.nodeType == Node.DOCUMENT_TYPE_NODE:
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if element.name:
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if element.publicId or element.systemId:
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publicId = element.publicId or ""
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systemId = element.systemId or ""
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rv.append("""|%s<!DOCTYPE %s "%s" "%s">""" %
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(' ' * indent, element.name, publicId, systemId))
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else:
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rv.append("|%s<!DOCTYPE %s>" % (' ' * indent, element.name))
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else:
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rv.append("|%s<!DOCTYPE >" % (' ' * indent,))
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elif element.nodeType == Node.DOCUMENT_NODE:
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rv.append("#document")
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elif element.nodeType == Node.DOCUMENT_FRAGMENT_NODE:
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rv.append("#document-fragment")
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elif element.nodeType == Node.COMMENT_NODE:
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rv.append("|%s<!-- %s -->" % (' ' * indent, element.nodeValue))
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elif element.nodeType == Node.TEXT_NODE:
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rv.append("|%s\"%s\"" % (' ' * indent, element.nodeValue))
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else:
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if (hasattr(element, "namespaceURI") and
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element.namespaceURI is not None):
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name = "%s %s" % (constants.prefixes[element.namespaceURI],
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element.nodeName)
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else:
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name = element.nodeName
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rv.append("|%s<%s>" % (' ' * indent, name))
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if element.hasAttributes():
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attributes = []
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for i in range(len(element.attributes)):
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attr = element.attributes.item(i)
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name = attr.nodeName
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value = attr.value
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ns = attr.namespaceURI
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if ns:
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name = "%s %s" % (constants.prefixes[ns], attr.localName)
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else:
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name = attr.nodeName
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attributes.append((name, value))
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for name, value in sorted(attributes):
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rv.append('|%s%s="%s"' % (' ' * (indent + 2), name, value))
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indent += 2
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for child in element.childNodes:
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serializeElement(child, indent)
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serializeElement(element, 0)
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return "\n".join(rv)
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return locals()
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# The actual means to get a module!
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getDomModule = moduleFactoryFactory(getDomBuilder)
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