[caribou: 15/22] libcaribou: Added a tool to ammend valac's gir.

[Eitan Isaacson <eitani src gnome org>]

commit f195b7aafa878568e7aae8ccc27e3716ae7c21cc
Author: Eitan Isaacson <eitan monotonous org>
Date:   Fri Apr 29 01:59:17 2011 -0700

    libcaribou: Added a tool to ammend valac's gir.
    
    I filed a bug for this: https://bugzilla.gnome.org/show_bug.cgi?id=648957

 .gitignore             |    4 +-
 libcaribou/Makefile.am |    6 ++++-
 tools/fix_gir.py       |   63 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 70 insertions(+), 3 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index cb3be79..a0ba962 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,8 +33,8 @@ libtool
 ltmain.sh
 m4
 libcaribou/.libs/
-libcaribou/Caribou-1.0.gir
-libcaribou/Caribou-1.0.typelib
+libcaribou/*.gir
+libcaribou/*.typelib
 *.lo
 *.o
 libcaribou/libcaribou.la
diff --git a/libcaribou/Makefile.am b/libcaribou/Makefile.am
index 90cc34b..9e157e9 100644
--- a/libcaribou/Makefile.am
+++ b/libcaribou/Makefile.am
@@ -12,7 +12,7 @@ libcaribou_la_VALAFLAGS = \
 	--pkg x11 --pkg json-glib-1.0 --pkg gdk-3.0 --pkg gio-2.0 \
 	--pkg libxklavier --pkg external-libs  --pkg gdk-x11-3.0 \
 	--internal-vapi caribou-internals-1.0.vapi \
-	--library caribou-1.0 --gir Caribou-1.0.gir \
+	--library caribou-1.0 --gir _Caribou-1.0.gir \
 	$(VALAFLAGS)
 
 libcaribou_la_CPPFLAGS = \
@@ -55,6 +55,9 @@ gir_DATA = Caribou-1.0.gir
 typelibdir = $(libdir)/girepository-1.0
 typelib_DATA = Caribou-1.0.typelib
 
+Caribou-1.0.gir: _Caribou-1.0.gir
+	$(top_srcdir)/tools/fix_gir.py $< > $@
+
 Caribou-1.0.typelib: Caribou-1.0.gir
 	@INTROSPECTION_COMPILER@ --shared-library=libcaribou -o $@ $^
 endif
@@ -66,4 +69,5 @@ CLEANFILES = \
 	caribou-internals-1.0.vapi \
 	Caribou-1.0.typelib \
 	Caribou-1.0.gir \
+	_Caribou-1.0.gir \
 	*.[ch]
\ No newline at end of file
diff --git a/tools/fix_gir.py b/tools/fix_gir.py
new file mode 100755
index 0000000..31190e3
--- /dev/null
+++ b/tools/fix_gir.py
@@ -0,0 +1,63 @@
+#!/usr/bin/python
+
+from xml.dom import minidom
+
+def purge_white_space_and_fix_namespace(node, indent=0):
+    if getattr(node, "tagName", None) == "namespace":
+        name = node.getAttribute("name")
+        node.setAttribute("name", name.lstrip('_'))
+    for child in [c for c in node.childNodes]:
+        if child.nodeType == node.TEXT_NODE or \
+                getattr(child, "tagName", None) == "annotation":
+            node.removeChild(child)
+            continue
+        purge_white_space_and_fix_namespace(child, indent+1)
+
+def find_ancestor(node, name):
+    if getattr(node, "tagName") == name:
+        return node
+    parent = getattr(node, "parentNode", None)
+    if not parent:
+        return None
+    return find_ancestor(parent, name)
+
+def fix_vfuncs(dom):
+    for f in dom.getElementsByTagName("callback"):
+        record = find_ancestor(f, "record")
+        if not record:
+            continue
+
+        name = record.getAttribute("name")
+        cname = record.getAttribute("c:type")
+
+        assert(name.endswith("Class"))
+        assert(cname.endswith("Class"))
+
+        params = (f.getElementsByTagName("parameters") or [None])[0]
+
+        if not params:
+            params = dom.createElement("parameters")
+            f.insertBefore(params, f.firstChild)
+
+        param = dom.createElement("parameter")
+        param.setAttribute("name", "self")
+        param.setAttribute("transfer-ownership", "none")
+        ptype = dom.createElement("type")
+        ptype.setAttribute("name", name[:-5])
+        ptype.setAttribute("c:type", cname[:-5])
+        param.appendChild(ptype)
+        params.insertBefore(param, params.firstChild)
+
+if __name__ == "__main__":
+    import sys
+
+    if len(sys.argv) != 2:
+        print "supply a gir file"
+        sys.exit(1)
+
+    dom = minidom.parse(sys.argv[-1])
+
+    purge_white_space_and_fix_namespace(dom)
+    fix_vfuncs(dom)
+
+    print dom.toprettyxml(indent=" ", newl="\n")