From 97580dc474a6ba6cb18c12bf3ceb4ccee2c493bc Mon Sep 17 00:00:00 2001
From: aurium <aurium@users.sourceforge.net>
Date: Wed, 25 Mar 2009 23:41:59 +0000
Subject: [PATCH] InkWeb is a fetus, but is growing...

---
 share/extensions/inkwebeffect.py     | 59 ++++++++++++++++++++++++++++
 share/extensions/web-transmit-att.py | 29 ++++++--------
 2 files changed, 71 insertions(+), 17 deletions(-)
 create mode 100644 share/extensions/inkwebeffect.py

diff --git a/share/extensions/inkwebeffect.py b/share/extensions/inkwebeffect.py
new file mode 100644
index 000000000..65176652f
--- /dev/null
+++ b/share/extensions/inkwebeffect.py
@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+'''
+Copyright (C) 2009 Aurelio A. Heckert, aurium (a) gmail dot com
+
+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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+'''
+
+import inkex, sys, os, re
+
+class InkWebEffect(inkex.Effect):
+  def __init__(self):
+    inkex.Effect.__init__(self)
+    self.reUpdateJS = '/\\*\\s* inkweb.js [^*]* InkWebEffect:AutoUpdate \\s*\\*/'
+
+  def mustAddInkWebJSCode(self, scriptEl):
+    if not scriptEl.text: return True
+    if len(scriptEl.text) == 0: return True
+    if re.search(self.reUpdateJS, scriptEl.text): return True
+    return False
+
+  def addInkWebJSCode(self, scriptEl):
+    js = open( os.path.join(sys.path[0], "inkweb.js"), 'r' )
+    scriptEl.text = \
+      inkex.etree.CDATA(
+        "\n/* inkweb.js - InkWebEffect:AutoUpdate */\n" + js.read()
+      )
+    js.close()
+
+  def ensureInkWebSupport(self):
+    # Search for the script tag with the inkweb.js code:
+    scriptEl = False
+    scripts = self.document.xpath('//script', namespaces=inkex.NSS)
+    for s in scripts:
+      inkex.errormsg(s)
+      if re.search(self.reUpdateJS, s.text):
+        inkex.errormsg("OK!")
+        scriptEl = s
+
+    if not scriptEl:
+      root = self.document.getroot()
+      scriptEl = inkex.etree.Element( "script" )
+      scriptEl.set( "id", "inkwebjs" )
+      scriptEl.set( "type", "text/javascript" )
+      root.insert( 0, scriptEl )
+
+    if self.mustAddInkWebJSCode(scriptEl): self.addInkWebJSCode(scriptEl)
+
diff --git a/share/extensions/web-transmit-att.py b/share/extensions/web-transmit-att.py
index eff10f05f..830085fab 100644
--- a/share/extensions/web-transmit-att.py
+++ b/share/extensions/web-transmit-att.py
@@ -16,13 +16,14 @@ 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 '''
-import inkex, sys, os
-#from lxml import etree
+import inkwebeffect, gettext
 
-class InterpAttG(inkex.Effect):
+_ = gettext.gettext
+
+class InkWebTransmitAtt(inkwebeffect.InkWebEffect):
 
     def __init__(self):
-        inkex.Effect.__init__(self)
+        inkwebeffect.InkWebEffect.__init__(self)
         self.OptionParser.add_option("-a", "--att",
                         action="store", type="string",
                         dest="att", default="fill",
@@ -36,20 +37,13 @@ class InterpAttG(inkex.Effect):
                         dest="compatibility", default="append",
                         help="Compatibility with previews code to this event.")
 
-    def ensureInkWebSupport(self):
-      if not self.document.xpath('//*[@id="inkwebjs"]', namespaces=inkex.NSS):
-        root = self.document.getroot()
-        scriptEl = inkex.etree.Element( "script" )
-        scriptEl.set( "id", "inkwebjs" )
-        scriptEl.set( "type", "text/javascript" )
-        js = open( os.path.join(sys.path[0], "inkweb.js"), 'r' )
-        scriptEl.text = inkex.etree.CDATA( js.read() )
-        js.close()
-        root.insert( 0, scriptEl )
-
     def effect(self):
       self.ensureInkWebSupport()
 
+      if len(self.options.ids) < 2:
+        inkwebeffect.inkex.errormsg(_("You must to select at least two elements."))
+        exit(1)
+
       elFrom = self.selected[ self.options.ids[0] ]
       idTo = self.options.ids[1]
 
@@ -66,5 +60,6 @@ class InterpAttG(inkex.Effect):
       elFrom.set( self.options.when, evCode )
 
 if __name__ == '__main__':
-    e = InterpAttG()
-    e.affect()
\ No newline at end of file
+    e = InkWebTransmitAtt()
+    e.affect()
+
-- 
2.30.2