X-Git-Url: https://svn.cri.mines-paristech.fr/git/Plinn.git/blobdiff_plain/3c4367d8e03450e9a73e61f4247145d2b6c86a33..959d888c17d1403d2eeecc19bc4b5e2c8d1debf6:/Products/Plinn/HistoryAdapters.py

diff --git a/Products/Plinn/HistoryAdapters.py b/Products/Plinn/HistoryAdapters.py
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+# -*- coding: utf-8 -*-
+#######################################################################################
+#   Plinn - http://plinn.org                                                          #
+#   Copyright (C) 2005-2009  Benoît PIN <benoit.pin@ensmp.fr>                         #
+#                                                                                     #
+#   This program is free software; you can redistribute it and/or                     #
+#   modify it under the terms of the GNU General Public License                       #
+#   as published by the Free Software Foundation; either version 2                    #
+#   of the License, or (at your option) any later version.                            #
+#                                                                                     #
+#   This program is distributed in the hope that it will be useful,                   #
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of                    #
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                     #
+#   GNU General Public License for more details.                                      #
+#                                                                                     #
+#   You should have received a copy of the GNU General Public License                 #
+#   along with this program; if not, write to the Free Software                       #
+#   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.   #
+#######################################################################################
+"""
+Adapters to plug specific contentish interfaces to historycal interface.
+
+
+
+"""
+
+from Globals import InitializeClass
+from AccessControl import ClassSecurityInfo
+from Products.CMFCore.permissions import ModifyPortalContent
+from permissions import ViewHistory
+from difflib import SequenceMatcher
+from ContentHistory import ContentHistory
+from types import UnicodeType
+from htmlentitydefs import name2codepoint
+from cgi import escape
+import re
+
+rent = re.compile(r"&(?P<entName>[A-Za-z]+);")
+
+class DocumentHistory(ContentHistory) :
+
+	security = ClassSecurityInfo()
+	
+	security.declareProtected(ViewHistory, 'compare')
+	def compare(self, leftkey, rightkey):
+		leftRev, leftDate = self.getHistoricalRevisionByKey(leftkey)
+		rightRev, rightDate = self.getHistoricalRevisionByKey(rightkey)
+		
+		left = leftRev.EditableBody()
+		right = rightRev.EditableBody()
+		
+		infos = {'diff'			: html_ready_diff(left, right)
+				,'leftDate'		: leftDate
+				,'rightDate'	: rightDate
+				,'structure'	: False}
+		return infos
+	
+	security.declareProtected(ModifyPortalContent, 'restore')
+	def restore(self, key):
+		rev = self.getHistoricalRevisionByKey(key)[0]
+		self._content.edit(rev.Format(), rev.EditableBody())
+		
+
+InitializeClass(DocumentHistory)
+
+class FolderishHistory(ContentHistory) :
+	
+	security = ClassSecurityInfo()
+	
+	security.declareProtected(ViewHistory, 'compare')
+	def compare(self, leftkey, rightkey):
+		leftRev, leftDate = self.getHistoricalRevisionByKey(leftkey)
+		rightRev, rightDate = self.getHistoricalRevisionByKey(rightkey)
+		
+		leftIds = leftRev.objectIds()
+		leftTitleAndIds = []
+		for id in leftIds :
+			title = leftRev[id].Title()
+			if title != id :
+				leftTitleAndIds.append('%s (%s)' % (id, title))
+			else :
+				leftTitleAndIds.append('%s' % id)
+		left = '\n'.join(leftTitleAndIds)
+
+		rightIds = rightRev.objectIds()
+		rightTitleAndIds = []
+		for id in rightIds :
+			title = rightRev[id].Title()
+			if title != id :
+				rightTitleAndIds.append('%s (%s)' % (id, title))
+			else :
+				rightTitleAndIds.append('%s' % id)
+		right = '\n'.join(rightTitleAndIds)
+
+		infos = {'diff'			: html_ready_diff(left, right)
+				,'leftDate'		: leftDate
+				,'rightDate'	: rightDate
+				,'structure'	: True}
+		return infos
+	
+	
+	security.declareProtected(ModifyPortalContent, 'restore')
+	def restore(self, key):
+		pass
+
+InitializeClass(FolderishHistory)
+	
+	
+	
+
+InitializeClass(FolderishHistory)
+
+def html_ready_diff(left, right, n=3) :
+	if isinstance(left, UnicodeType) :
+		left = left.encode('utf-8')
+	if isinstance(right, UnicodeType) :
+		right = right.encode('utf-8')
+	left = rent.sub(convertEnt, left)
+	right = rent.sub(convertEnt, right)
+	sm = SequenceMatcher()
+	leftLines = left.splitlines()
+	rightLines = right.splitlines()
+	sm.set_seqs(leftLines, rightLines)
+	
+	groups = []
+	for i, group in enumerate(sm.get_grouped_opcodes(n)) :
+		groups.append([])
+		infos = groups[i]
+		for tag, i1, i2, j1, j2 in group :
+			info = {'tag'	: tag
+			       ,'left'	: '\n'.join(leftLines[i1:i2])
+				   ,'right'	: '\n'.join(rightLines[j1:j2])}
+			infos.append(info)
+	return groups
+
+def convertEnt(m):
+	"""convert html entity to utf-8 encoded character
+	"""
+	return unichr(name2codepoint.get(m.group('entName'), 32)).encode('utf-8')