40 lines
1.4 KiB
Python
40 lines
1.4 KiB
Python
#!/usr/bin/python
|
|
|
|
class Sequence:
|
|
''' implement sequence in interface xml'''
|
|
dict={}
|
|
|
|
def __init__(self, xml_node):
|
|
self.steps = [ s.attributes["name"].value for s in xml_node.childNodes
|
|
if s.nodeType == s.ELEMENT_NODE and s.nodeName == "widget" ]
|
|
self.current_step = 0
|
|
|
|
def set_current_step(self, st):
|
|
''' set current step based on input step name'''
|
|
self.current_step = self.steps.index(st)
|
|
|
|
@staticmethod
|
|
def set_current_sequence(name):
|
|
Sequence.current_sequence = Sequence.dict[name]
|
|
|
|
@staticmethod
|
|
def current():
|
|
return (Sequence.current_sequence, Sequence.current_sequence.steps[Sequence.current_sequence.current_step])
|
|
|
|
|
|
def construct(xml_root):
|
|
''' construct Sequence's static members'''
|
|
for s in xml_root.childNodes:
|
|
if s.nodeType == s.ELEMENT_NODE and s.nodeName == "sequence":
|
|
Sequence.dict[s.attributes["name"].value] = Sequence(s)
|
|
|
|
def previous():
|
|
if Sequence.current_sequence.current_step:
|
|
Sequence.current_sequence.current_step -= 1
|
|
return Sequence.current_sequence.steps[Sequence.current_sequence.current_step]
|
|
|
|
def next():
|
|
if Sequence.current_sequence.current_step < len(Sequence.current_sequence.steps)-1:
|
|
Sequence.current_sequence.current_step += 1
|
|
return Sequence.current_sequence.steps[Sequence.current_sequence.current_step]
|