""" A module for managing the AXDebug I*Contexts

"""
import gateways, axdebug
import pythoncom, win32com.server.util

# Utility function for wrapping object created by this module.
from util import _wrap, _wrap_remove, trace
import adb

class DebugCodeContext(gateways.DebugCodeContext, gateways.DebugDocumentContext):
	# NOTE: We also implement the IDebugDocumentContext interface for Simple Hosts.
	# Thus, debugDocument may be NULL when we have smart hosts - but in that case, we
	# wont be called upon to provide it.
	_public_methods_ = gateways.DebugCodeContext._public_methods_ + \
	                   gateways.DebugDocumentContext._public_methods_
	_com_interfaces_ = gateways.DebugCodeContext._com_interfaces_ + \
	                   gateways.DebugDocumentContext._com_interfaces_

	def __init__(self, lineNo, charPos, len, codeContainer, debugSite):
		self.debugSite = debugSite
		self.offset = charPos
		self.length = len
		self.breakPointState = 0
		self.lineno = lineNo
		gateways.DebugCodeContext.__init__(self)
		self.codeContainer = codeContainer

	def _Close(self):
		self.debugSite = None

	def GetDocumentContext(self):
		if self.debugSite is not None:
			# We have a smart host - let him give it to us.
			return self.debugSite.GetDocumentContextFromPosition(
				self.codeContainer.sourceContext,
				self.offset, 
				self.length)
		else:
			# Simple host - Fine - Ill do it myself!
			return _wrap(self, axdebug.IID_IDebugDocumentContext)

	def SetBreakPoint(self, bps):
		self.breakPointState = bps
		adb.OnSetBreakPoint(self, bps, self.lineno)
		
	# The DebugDocumentContext methods for simple hosts.
	def GetDocument(self):
		return self.codeContainer.debugDocument

	def EnumCodeContexts(self):
		return _wrap(EnumDebugCodeContexts([self]), axdebug.IID_IEnumDebugCodeContexts)

class EnumDebugCodeContexts(gateways.EnumDebugCodeContexts):
	def _wrap(self, obj):
		return _wrap(obj, axdebug.IID_IDebugCodeContext)
