core, frontends: XMLUI refactoring:

- XMLUI now use objects with 2 main classes: widgets (button, label, etc), and container which contain widgets according to a layout
    - widgets and containers classes are found through introspection, thereby it's really easy to add a new one
    - there is still the AddWidgetName helper, for example AddText('jid', 'test@example.net') will add a StringWidget with name "jid" and default value "test@example.net"
    - container can be inside other containers. changeContainer change the first parent container
This commit is contained in:
Goffi 2014-02-04 18:19:00 +01:00
commit b3fb68cb63

View file

@ -29,9 +29,47 @@ from sat.core import exceptions
SAT_FORM_PREFIX = "SAT_FORM_"
SAT_PARAM_SEPARATOR = "_XMLUI_PARAM_" # used to have unique elements names
def dataForm2XMLUI(form, submit_id, session_id=None):
"""Take a data form (xep-0004, Wokkel's implementation) and convert it to a SàT xml"""
# Helper functions
def _dataFormField2XMLUIData(field):
""" Get data needed to create an XMLUI's Widget from Wokkel's data_form's Field
@param field: data_form.Field (it uses field.value, field.fieldType, field.label and field.var)
@return: widget_type, widget_args, widget_kwargs
"""
widget_args = [field.value]
widget_kwargs = {}
if field.fieldType == 'fixed' or field.fieldType is None:
widget_type = 'text'
elif field.fieldType == 'text-single':
widget_type = "string"
elif field.fieldType == 'text-private':
widget_type = "password"
elif field.fieldType == 'boolean':
widget_type = "bool"
if widget_args[0] is None:
widget_args[0] = 'false'
elif field.fieldType == 'list-single':
widget_type = "list"
del widget_args[0]
widget_kwargs["options"] = [option.value for option in field.options]
else:
error(u"FIXME FIXME FIXME: Type [%s] is not managed yet by SàT" % field.fieldType)
widget_type = "string"
if field.var:
widget_kwargs["name"] = field.var
return widget_type, widget_args, widget_kwargs
def dataForm2XMLUI(form, submit_id, session_id=None):
"""Take a data form (xep-0004, Wokkel's implementation) and convert it to a SàT XML
@param submit_id: callback id to call when submitting form
@param session_id: id to return with the data
"""
form_ui = XMLUI("form", "vertical", submit_id=submit_id, session_id=session_id)
if form.instructions:
@ -40,32 +78,18 @@ def dataForm2XMLUI(form, submit_id, session_id=None):
labels = [field for field in form.fieldList if field.label]
if labels:
# if there is no label, we don't need to use pairs
form_ui.changeLayout("pairs")
form_ui.changeContainer("pairs")
for field in form.fieldList:
if field.fieldType == 'fixed':
__field_type = 'text'
elif field.fieldType == 'text-single':
__field_type = "string"
elif field.fieldType == 'text-private':
__field_type = "password"
elif field.fieldType == 'boolean':
__field_type = "bool"
if field.value is None:
field.value = "false"
elif field.fieldType == 'list-single':
__field_type = "list"
else:
error(u"FIXME FIXME FIXME: Type [%s] is not managed yet by SàT" % field.fieldType)
__field_type = "string"
widget_type, widget_args, widget_kwargs = _dataFormField2XMLUIData(field)
if labels:
if field.label:
form_ui.addLabel(field.label)
else:
form_ui.addEmpty()
form_ui.addElement(__field_type, field.var, field.value, [option.value for option in field.options])
form_ui.addWidget(widget_type, *widget_args, **widget_kwargs)
return form_ui
def dataFormResult2AdvancedList(form_ui, form_xml):
@ -75,8 +99,7 @@ def dataFormResult2AdvancedList(form_ui, form_xml):
@param form_xml: domish.Element of the data form
@return: AdvancedList element
"""
headers = []
items = []
headers = {}
try:
reported_elt = form_xml.elements('jabber:x:data', 'reported').next()
except StopIteration:
@ -87,30 +110,28 @@ def dataFormResult2AdvancedList(form_ui, form_xml):
raise exceptions.DataError("Unexpected tag")
name = elt["var"]
label = elt.attributes.get('label','')
type_ = elt.attributes.get('type','') # TODO
headers.append(Header(name, label))
type_ = elt.attributes.get('type')
headers[name] = (label, type_)
if not headers:
raise exceptions.DataError("No reported fields (see XEP-0004 §3.4)")
adv_list = AdvancedListContainer(form_ui, headers=headers, columns=len(headers), parent=form_ui.current_container)
form_ui.changeContainer(adv_list)
item_elts = form_xml.elements('jabber:x:data', 'item')
for item_elt in item_elts:
fields = []
for elt in item_elt.elements():
if elt.name != 'field':
warning("Unexpected tag (%s)" % elt.name)
continue
name = elt['var']
child_elt = elt.firstChildElement()
if child_elt.name != "value":
raise exceptions.DataError('Was expecting <value> tag')
value = unicode(child_elt)
fields.append(Field(name, value))
items.append(Item(' | '.join((field.value for field in fields if field)), fields))
field = data_form.Field.fromElement(elt)
return form_ui.addAdvancedList(None, headers, items)
widget_type, widget_args, widget_kwargs = _dataFormField2XMLUIData(field)
form_ui.addWidget(widget_type, *widget_args, **widget_kwargs)
return form_ui
def dataFormResult2XMLUI(form_xml, session_id=None):
"""Take a raw data form (not parsed by XEP-0004) and convert it to a SàT XMLUI
@ -147,41 +168,57 @@ def tupleList2dataForm(values):
return form
def paramsXml2xmlUI(xml):
def paramsXML2XMLUI(xml):
"""Convert the xml for parameter to a SàT XML User Interface"""
params_doc = minidom.parseString(xml.encode('utf-8'))
top = params_doc.documentElement
if top.nodeName != 'params':
error(_('INTERNAL ERROR: parameters xml not valid'))
assert(False)
raise exceptions.DataError(_('INTERNAL ERROR: parameters xml not valid'))
param_ui = XMLUI("param", "tabs")
tabs_cont = param_ui.current_container
for category in top.getElementsByTagName("category"):
category_name = category.getAttribute('name')
label = category.getAttribute('label')
if not category_name:
error(_('INTERNAL ERROR: params categories must have a name'))
assert(False)
param_ui.addCategory(category_name, 'pairs', label=label)
raise exceptions.DataError(_('INTERNAL ERROR: params categories must have a name'))
tabs_cont.addTab(category_name, label=label, container=PairsContainer)
for param in category.getElementsByTagName("param"):
widget_kwargs = {}
param_name = param.getAttribute('name')
label = param.getAttribute('label')
param_label = param.getAttribute('label')
if not param_name:
error(_('INTERNAL ERROR: params must have a name'))
assert(False)
raise exceptions.DataError(_('INTERNAL ERROR: params must have a name'))
type_ = param.getAttribute('type')
value = param.getAttribute('value') or None
options = getOptions(param)
callback_id = param.getAttribute('callback_id') or None
if type_ == 'list':
options = _getParamListOptions(param)
widget_kwargs['options'] = options
if type_ == "button":
param_ui.addEmpty()
else:
param_ui.addLabel(label or param_name)
param_ui.addElement(name="%s%s%s" % (category_name, SAT_PARAM_SEPARATOR, param_name), type_=type_, value=value, options=options, callback_id=callback_id)
param_ui.addLabel(param_label or param_name)
if value:
widget_kwargs["value"] = value
if callback_id:
widget_kwargs['callback_id'] = callback_id
widget_kwargs['name'] = "%s%s%s" % (category_name, SAT_PARAM_SEPARATOR, param_name)
param_ui.addWidget(type_, **widget_kwargs)
return param_ui.toXml()
def getOptions(param):
def _getParamListOptions(param):
"""Retrieve the options for list element. Allow listing the <option/>
tags directly in <param/> or in an intermediate <options/> tag."""
elems = param.getElementsByTagName("options")
@ -194,60 +231,349 @@ def getOptions(param):
return [elem.getAttribute("value") for elem in elems]
class Header(object):
"""AdvandeList's header"""
## XMLUI Elements
def __init__(self, field_name, label, description=None, type_=None):
class Element(object):
""" Base XMLUI element """
type = None
def __init__(self, xmlui, parent=None):
"""Create a container element
@param xmlui: XMLUI instance
@parent: parent element
"""
@param field_name: name of the field referenced
assert(self.type) is not None
if not hasattr(self, 'elem'):
self.elem = parent.xmlui.doc.createElement(self.type)
self.xmlui = xmlui
if parent is not None:
parent.append(self)
else:
self.parent = parent
def append(self, child):
self.elem.appendChild(child.elem)
child.parent = self
class TopElement(Element):
""" Main XML Element """
type = 'top'
def __init__(self, xmlui):
self.elem = xmlui.doc.documentElement
super(TopElement, self).__init__(xmlui)
class TabElement(Element):
""" Used by TabsContainer to give name and label to tabs """
type = 'tab'
def __init__(self, parent, name, label):
if not isinstance(parent, TabsContainer):
raise exceptions.DataError(_("TabElement must be a child of TabsContainer"))
super(TabElement, self).__init__(parent.xmlui, parent)
self.elem.setAttribute('name', name)
self.elem.setAttribute('label', label)
class FieldBackElement(Element):
""" Used by ButtonWidget to indicate which field have to be sent back """
type = 'field_back'
def __init__(self, parent, name):
assert(isinstance(parent, ButtonWidget))
super(FieldBackElement, self).__init__(parent.xmlui, parent)
self.elem.setAttribute('name', name)
class OptionElement(Element):
"""" Used by ListWidget to specify options """
type = 'option'
def __init__(self, parent, option):
assert(isinstance(parent, ListWidget))
super(OptionElement, self).__init__(parent.xmlui, parent)
if isinstance(option, basestring):
value, label = option, option
elif isinstance(option, tuple):
value, label = option
self.elem.setAttribute('value', value)
self.elem.setAttribute('label', label)
class RowElement(Element):
"""" Used by AdvancedListContainer """
type = 'row'
def __init__(self, parent):
assert(isinstance(parent, AdvancedListContainer))
super(RowElement, self).__init__(parent.xmlui, parent)
class HeaderElement(Element):
"""" Used by AdvancedListContainer """
type = 'header'
def __init__(self, parent, name=None, Label=None, description=None):
"""
@param parent: AdvancedListContainer instance
@param name: name of the container
@param label: label to be displayed in columns
@param description: long descriptive text
@param type_: TODO
"""
self.field_name = field_name
self.label = label
self.description = description
self.type = type_
if type_ is not None:
raise NotImplementedError # TODO:
assert(isinstance(parent, AdvancedListContainer))
super(HeaderElement, self).__init__(parent.xmlui, parent)
if name:
field_elt.setAttribute('name', name)
if label:
field_elt.setAttribute('label', label)
if description:
field_elt.setAttribute('description', description)
class Item(object):
"""Item used in AdvancedList"""
class Container(Element):
""" And Element which contains other ones and has a layout """
type = None
def __init__(self, text=None, fields=None):
def __init__(self, xmlui, parent=None):
"""Create a container element
@param xmlui: XMLUI instance
@parent: parent element or None
"""
@param text: Optional textual representation, when fields are not showed individually
@param fields: list of Field instances²
self.elem = xmlui.doc.createElement('container')
super(Container, self).__init__(xmlui, parent)
self.elem.setAttribute('type', self.type)
def getParentContainer(self):
""" Return first parent container
@return: parent container or None
"""
self.text = text
self.fields = fields if fields is not None else []
current = self.parent
while(not isinstance(current, (Container)) and
current is not None):
current = current.parent
return current
class VerticalContainer(Container):
type = "vertical"
class Field(object):
"""Field used in AdvancedList (in items)"""
class HorizontalContainer(Container):
type = "horizontal"
class PairsContainer(Container):
type = "pairs"
class TabsContainer(Container):
type = "tabs"
def addTab(self, name, label=None, container=VerticalContainer):
"""Add a tab"""
if not label:
label = name
tab_elt = TabElement(self, name, label)
new_container = container(self.xmlui, tab_elt)
self.xmlui.changeContainer(new_container)
def end(self):
""" Called when we have finished tabs
change current container to first container parent
def __init__(self, name, value):
"""
@param name: name of the field, used to identify the field in headers
@param value: actual content of the field
"""
self.name = name
self.value = value
parent_container = self.getParentContainer()
self.xmlui.changeContainer(parent_container)
class AdvancedListContainer(Container):
type = "advanced_list"
def __init__(self, xmlui, name=None, headers=None, items=None, columns=None, parent=None):
"""Create an advanced list
@param headers: optional headers informations
@param items: list of Item instances
@return: created element
"""
if not items and columns is None:
raise DataError(_("either items or columns need do be filled"))
if headers is None:
headers = []
if items is None:
items = []
super(AdvancedListContainer, self).__init__(xmlui, parent)
if columns is None:
columns = len(items[0])
self._columns = columns
self._current_column = 0
self.current_row = None
if headers:
if len(headers) != self._columns:
raise exceptions.DataError(_("Headers lenght doesn't correspond to columns"))
self.addHeaders(headers)
if items:
self.addItems(items)
def addHeaders(self, headers):
for header in headers:
self.addHeader(header)
def addHeader(self, header):
pass # TODO
def addItems(self, items):
for item in items:
self.addItem(item)
def addItem(self, item):
if self._current_column % self._columns == 0:
self.current_row = RowElement(self)
self.current_row.append(item)
def end(self):
""" Called when we have finished list
change current container to first container parent
"""
if self._current_colum % self._columns != 0:
raise exceptions.DataError(_("Incorrect number of items in list"))
parent_container = self.getParentContainer()
self.xmlui.changeContainer(parent_container)
class Widget(Element):
type = None
def __init__(self, xmlui, name=None, parent=None):
"""Create an element
@param xmlui: XMLUI instance
@param name: name of the element or None
@param parent: parent element or None
"""
self.elem = xmlui.doc.createElement('widget')
super(Widget, self).__init__(xmlui, parent)
if name:
self.elem.setAttribute('name', name)
self.elem.setAttribute('type', self.type)
class InputWidget(Widget):
pass
class EmptyWidget(Widget):
type = 'empty'
class TextWidget(Widget):
type = 'text'
def __init__(self, xmlui, text, name=None, parent=None):
super(TextWidget, self).__init__(xmlui, name, parent)
text = self.xmlui.doc.createTextNode(text)
self.elem.appendChild(text)
class LabelWidget(Widget):
type='label'
def __init__(self, xmlui, label, name=None, parent=None):
super(LabelWidget, self).__init__(xmlui, name, parent)
self.elem.setAttribute('value', label)
class StringWidget(InputWidget):
type = 'string'
def __init__(self, xmlui, value=None, name=None, parent=None):
super(StringWidget, self).__init__(xmlui, name, parent)
if value:
self.elem.setAttribute('value', value)
class PasswordWidget(StringWidget):
type = 'password'
class TextBoxWidget(StringWidget):
type = 'textbox'
class BoolWidget(InputWidget):
type = 'bool'
def __init__(self, xmlui, value='false', name=None, parent=None):
if value == '0':
value='false'
elif value == '1':
value='true'
if not value in ('true', 'false'):
raise exceptions.DataError(_("Value must be 0, 1, false or true"))
super(BoolWidget, self).__init__(xmlui, name, parent)
self.elem.setAttribute('value', value)
class ButtonWidget(InputWidget):
type = 'button'
def __init__(self, xmlui, callback_id, value=None, fields_back=None, name=None, parent=None):
"""Add a button
@param callback_id: callback which will be called if button is pressed
@param value: label of the button
@fields_back: list of names of field to give back when pushing the button
@param name: name
@param parent: parent container
"""
if fields_back is None:
fields_back = []
super(ButtonWidget, self).__init__(xmlui, name, parent)
self.elem.setAttribute('callback', callback_id)
if value:
self.elem.setAttribute('value', value)
for field in fields_back:
fback_el = FieldBackElement(self, field)
class ListWidget(InputWidget):
type = 'list'
def __init__(self, xmlui, options, value=None, style=None, name=None, parent=None):
if style is None:
style = set()
styles = set(style)
assert options
if not styles.issubset(['multi']):
raise exceptions.DataError(_("invalid styles"))
super(ListWidget, self).__init__(xmlui, name, parent)
self.addOptions(options)
if value:
self.elem.setAttribute('value', value)
for style in styles:
self.elem.setAttribute(style, 'yes')
def addOptions(self, options):
"""i Add options to a multi-values element (e.g. list) """
for option in options:
OptionElement(self, option)
## XMLUI main class
class XMLUI(object):
"""This class is used to create a user interface (form/window/parameters/etc) using SàT XML"""
def __init__(self, panel_type, layout="vertical", title=None, submit_id=None, session_id=None):
def __init__(self, panel_type, container="vertical", title=None, submit_id=None, session_id=None):
"""Init SàT XML Panel
@param panel_type: one of
- window (new window)
- form (formulaire, depend of the frontend, usually a panel with cancel/submit buttons)
- param (parameters, presentatio depend of the frontend)
@param layout: disposition of elements, one of:
- param (parameters, presentation depend of the frontend)
@param container: disposition of elements, one of:
- vertical: elements are disposed up to bottom
- horizontal: elements are disposed left to right
- pairs: elements come on two aligned columns
@ -256,11 +582,14 @@ class XMLUI(object):
@param title: title or default if None
@param submit_id: callback id to call for panel_type we can submit (form, param)
"""
self._introspect()
if panel_type not in ['window', 'form', 'param']:
raise exceptions.DataError(_("Unknown panel type [%s]") % panel_type)
if panel_type == 'form' and submit_id is None:
raise exceptions.DataError(_("form XMLUI need a submit_id"))
self.type_ = panel_type
if not isinstance(container, basestring):
raise exceptions.DataError(_("container argument must be a string"))
self.type = panel_type
impl = minidom.getDOMImplementation()
self.doc = impl.createDocument(None, "sat_xmlui", None)
@ -270,14 +599,45 @@ class XMLUI(object):
top_element.setAttribute("title", title)
self.submit_id = submit_id
self.session_id = session_id
self.parentTabsLayout = None # used only we have 'tabs' layout
self.currentCategory = None # used only we have 'tabs' layout
self.currentLayout = None
self.changeLayout(layout)
self.main_container = self._createContainer(container, TopElement(self))
self.current_container = self.main_container
def _introspect(self):
""" Introspect module to find Widgets and Containers """
self._containers = {}
self._widgets = {}
for obj in globals().values():
try:
if issubclass(obj, Widget):
if obj.__name__ == 'Widget':
continue
self._widgets[obj.type] = obj
elif issubclass(obj, Container):
if obj.__name__ == 'Container':
continue
self._containers[obj.type] = obj
except TypeError:
pass
def __del__(self):
self.doc.unlink()
def __getattr__(self, name):
if name.startswith("add") and name not in ('addWidget',): # addWidgetName(...) create an instance of WidgetName
class_name = name[3:]+"Widget"
if class_name in globals():
cls = globals()[class_name]
if issubclass(cls, Widget):
def createWidget(*args, **kwargs):
if "parent" not in kwargs:
kwargs["parent"] = self.current_container
if "name" not in kwargs and issubclass(cls, InputWidget): # name can be given as first argument or in keyword arguments for InputWidgets
args = list(args)
kwargs["name"] = args.pop(0)
return cls(self, *args, **kwargs)
return createWidget
return object.__getattribute__(self, name)
@property
def submit_id(self):
top_element = self.doc.documentElement
@ -314,242 +674,45 @@ class XMLUI(object):
else:
raise exceptions.DataError("session_id can't be empty")
def _createLayout(self, layout, parent=None):
"""Create a layout element
@param type: layout type (cf init doc)
def _createContainer(self, container, parent=None, **kwargs):
"""Create a container element
@param type: container type (cf init doc)
@parent: parent element or None
"""
if not layout in ['vertical', 'horizontal', 'pairs', 'tabs']:
error(_("Unknown layout type [%s]") % layout)
assert False
layout_elt = self.doc.createElement('layout')
layout_elt.setAttribute('type', layout)
if parent is not None:
parent.appendChild(layout_elt)
return layout_elt
if container not in self._containers:
raise exceptions.DataError(_("Unknown container type [%s]") % container)
cls = self._containers[container]
new_container = cls(self, parent, **kwargs)
return new_container
def _createElem(self, type_, name=None, parent=None):
"""Create an element
@param type_: one of
- empty: empty element (usefull to skip something in a layout, e.g. skip first element in a PAIRS layout)
- text: text to be displayed in an multi-line area, e.g. instructions
@param name: name of the element or None
@param parent: parent element or None
@return: created element
"""
elem = self.doc.createElement('elem')
if name:
elem.setAttribute('name', name)
elem.setAttribute('type', type_)
if parent is not None:
parent.appendChild(elem)
return elem
def changeContainer(self, container, **kwargs):
"""Change the current container
@param container: either container type (container it then created),
or an Container instance"""
if isinstance(container, basestring):
self.current_container = self._createContainer(container, self.current_container.getParentContainer() or self.main_container, **kwargs)
else:
self.current_container = self.main_container if container is None else container
assert(isinstance(self.current_container, Container))
return self.current_container
def changeLayout(self, layout):
"""Change the current layout"""
self.currentLayout = self._createLayout(layout, self.currentCategory if self.currentCategory else self.doc.documentElement)
if layout == "tabs":
self.parentTabsLayout = self.currentLayout
def addEmpty(self, name=None):
"""Add a multi-lines text"""
return self._createElem('empty', name, self.currentLayout)
def addText(self, text, name=None):
"""Add a multi-lines text"""
elem = self._createElem('text', name, self.currentLayout)
text = self.doc.createTextNode(text)
elem.appendChild(text)
return elem
def addLabel(self, text, name=None):
"""Add a single line text, mainly useful as label before element"""
elem = self._createElem('label', name, self.currentLayout)
elem.setAttribute('value', text)
return elem
def addString(self, name=None, value=None):
"""Add a string box"""
elem = self._createElem('string', name, self.currentLayout)
if value:
elem.setAttribute('value', value)
return elem
def addPassword(self, name=None, value=None):
"""Add a password box"""
elem = self._createElem('password', name, self.currentLayout)
if value:
elem.setAttribute('value', value)
return elem
def addTextBox(self, name=None, value=None):
"""Add a string box"""
elem = self._createElem('textbox', name, self.currentLayout)
if value:
elem.setAttribute('value', value)
return elem
def addBool(self, name=None, value="true"):
"""Add a string box"""
if value=="0":
value="false"
elif value=="1":
value="true"
assert value in ["true", "false"]
elem = self._createElem('bool', name, self.currentLayout)
elem.setAttribute('value', value)
return elem
def addList(self, options, name=None, value=None, style=None):
"""Add a list of choices"""
if style is None:
style = set()
styles = set(style)
assert options
assert styles.issubset(['multi'])
elem = self._createElem('list', name, self.currentLayout)
self.addOptions(options, elem)
if value:
elem.setAttribute('value', value)
for style in styles:
elem.setAttribute(style, 'yes')
return elem
def addAdvancedList(self, name=None, headers=None, items=None):
"""Create an advanced list
@param headers: optional headers informations
@param items: list of Item instances
@return: created element
"""
elem = self._createElem('advanced_list', name, self.currentLayout)
self.addHeaders(headers, elem)
if items:
self.addItems(items, elem)
return elem
def addButton(self, callback_id, name, value, fields_back=[]):
"""Add a button
@param callback: callback which will be called if button is pressed
@param name: name
@param value: label of the button
@fields_back: list of names of field to give back when pushing the button
"""
elem = self._createElem('button', name, self.currentLayout)
elem.setAttribute('callback', callback_id)
elem.setAttribute('value', value)
for field in fields_back:
fback_el = self.doc.createElement('field_back')
fback_el.setAttribute('name', field)
elem.appendChild(fback_el)
return elem
def addElement(self, type_, name=None, value=None, options=None, callback_id=None, headers=None, available=None):
"""Convenience method to add element, the params correspond to the ones in addSomething methods"""
if type_ == 'empty':
return self.addEmpty(name)
elif type_ == 'text':
assert value is not None
return self.addText(value, name)
elif type_ == 'label':
assert(value)
return self.addLabel(value)
elif type_ == 'string':
return self.addString(name, value)
elif type_ == 'password':
return self.addPassword(name, value)
elif type_ == 'textbox':
return self.addTextBox(name, value)
elif type_ == 'bool':
if not value:
value = "true"
return self.addBool(name, value)
elif type_ == 'list':
return self.addList(options, name, value)
elif type_ == 'advancedlist':
return self.addAdvancedList(name, headers, available)
elif type_ == 'button':
assert(callback_id and value)
return self.addButton(callback_id, name, value)
# List
def addOptions(self, options, parent):
"""Add options to a multi-values element (e.g. list)
@param parent: multi-values element"""
for option in options:
opt = self.doc.createElement('option')
if isinstance(option, basestring):
value, label = option, option
elif isinstance(option, tuple):
value, label = option
opt.setAttribute('value', value)
opt.setAttribute('label', label)
parent.appendChild(opt)
# Advanced list
def addHeaders(self, headers, parent):
headers_elt = self.doc.createElement('headers')
for header in headers:
field_elt = self.doc.createElement('field')
field_elt.setAttribute('field_name', header.field_name)
field_elt.setAttribute('label', header.label)
if header.description:
field_elt.setAttribute('description', header.description)
if header.type:
field_elt.setAttribute('type', header.type)
headers_elt.appendChild(field_elt)
parent.appendChild(headers_elt)
def addItems(self, items, parent):
"""Add items to an AdvancedList
@param items: list of Item instances
@param parent: parent element (should be addAdvancedList)
"""
items_elt = self.doc.createElement('items')
for item in items:
item_elt = self.doc.createElement('item')
if item.text is not None:
text_elt = self.doc.createElement('text')
text_elt.appendChild(self.doc.createTextNode(item.text))
item_elt.appendChild(text_elt)
for field in item.fields:
field_elt = self.doc.createElement('field')
field_elt.setAttribute('name', field.name)
field_elt.setAttribute('value', field.value)
item_elt.appendChild(field_elt)
items_elt.appendChild(item_elt)
parent.appendChild(items_elt)
# Tabs
def addCategory(self, name, layout, label=None):
"""Add a category to current layout (must be a tabs layout)"""
assert(layout != 'tabs')
if not self.parentTabsLayout:
error(_("Trying to add a category without parent tabs layout"))
assert(False)
if self.parentTabsLayout.getAttribute('type') != 'tabs':
error(_("parent layout of a category is not tabs"))
assert(False)
if not label:
label = name
self.currentCategory = cat = self.doc.createElement('category')
cat.setAttribute('name', name)
cat.setAttribute('label', label)
self.changeLayout(layout)
self.parentTabsLayout.appendChild(cat)
def addWidget(self, type_, *args, **kwargs):
"""Convenience method to add an element"""
if type_ not in self._widgets:
raise exceptions.DataError(_("Invalid type [%s]") % type_)
if "parent" not in kwargs:
kwargs["parent"] = self.current_container
cls = self._widgets[type_]
return cls(self, *args, **kwargs)
def toXml(self):
"""return the XML representation of the panel"""
return self.doc.toxml()
# Misc other funtions
class ElementParser(object):
"""callable class to parse XML string into Element
Found at http://stackoverflow.com/questions/2093400/how-to-create-twisted-words-xish-domish-element-entirely-from-raw-xml/2095942#2095942