Source code
Revision control
Copy as Markdown
Other Tools
#!/usr/bin/env python
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
import os
import buildconfig
import mozpack.path as mozpath
from xpidl import xpidl
# Load the webidl configuration file.
glbl = {}
exec(
open(
mozpath.join(buildconfig.topsrcdir, "dom", "bindings", "Bindings.conf")
).read(),
glbl,
)
webidlconfig = glbl["DOMInterfaces"]
# Instantiate the parser.
p = xpidl.IDLParser()
def findIDL(includePath, interfaceFileName):
for d in includePath:
path = mozpath.join(d, interfaceFileName)
if os.path.exists(path):
return path
raise BaseException(
"No IDL file found for interface %s "
"in include path %r" % (interfaceFileName, includePath)
)
def loadEventIDL(parser, includePath, eventname):
eventidl = "nsIAccessible%s.idl" % eventname
idlFile = findIDL(includePath, eventidl)
idl = p.parse(open(idlFile).read(), idlFile)
idl.resolve(includePath, p, webidlconfig)
return idl, idlFile
class Configuration:
def __init__(self, filename):
config = {}
exec(open(filename).read(), config)
self.simple_events = config.get("simple_events", [])
def firstCap(str):
return str[0].upper() + str[1:]
def writeAttributeParams(a):
return "%s a%s" % (a.realtype.nativeType("in"), firstCap(a.name))
def print_header_file(fd, conf, incdirs):
idl_paths = set()
fd.write("/* THIS FILE IS AUTOGENERATED - DO NOT EDIT */\n")
fd.write(
"#ifndef _mozilla_a11y_generated_AccEvents_h_\n"
"#define _mozilla_a11y_generated_AccEvents_h_\n\n"
)
fd.write('#include "nscore.h"\n')
fd.write('#include "nsCOMPtr.h"\n')
fd.write('#include "nsCycleCollectionParticipant.h"\n')
fd.write('#include "nsString.h"\n')
for e in conf.simple_events:
fd.write('#include "nsIAccessible%s.h"\n' % e)
for e in conf.simple_events:
idl, idl_path = loadEventIDL(p, incdirs, e)
idl_paths.add(idl_path)
for iface in filter(lambda p: p.kind == "interface", idl.productions):
classname = "xpcAcc%s" % e
baseinterfaces = interfaces(iface)
fd.write("\nclass %s final : public %s\n" % (classname, iface.name))
fd.write("{\n")
fd.write("public:\n")
attributes = allAttributes(iface)
args = map(writeAttributeParams, attributes)
fd.write(" %s(%s) :\n" % (classname, ", ".join(args)))
initializers = []
for a in attributes:
initializers.append("m%s(a%s)" % (firstCap(a.name), firstCap(a.name)))
fd.write(" %s\n {}\n\n" % ", ".join(initializers))
fd.write(" NS_DECL_CYCLE_COLLECTING_ISUPPORTS\n")
fd.write(" NS_DECL_CYCLE_COLLECTION_CLASS(%s)\n" % (classname))
for iface in filter(lambda i: i.name != "nsISupports", baseinterfaces):
fd.write(" NS_DECL_%s\n" % iface.name.upper())
fd.write("\nprivate:\n")
fd.write(" ~%s() {}\n\n" % classname)
for a in attributes:
fd.write(" %s\n" % attributeVariableTypeAndName(a))
fd.write("};\n\n")
fd.write("#endif\n")
return idl_paths
def interfaceAttributeTypes(idl):
ifaces = filter(lambda p: p.kind == "interface", idl.productions)
attributes = []
for i in ifaces:
ifaceAttributes = allAttributes(i)
attributes.extend(ifaceAttributes)
ifaceAttrs = filter(lambda a: a.realtype.nativeType("in").endswith("*"), attributes)
return map(lambda a: a.realtype.nativeType("in").strip(" *"), ifaceAttrs)
def print_cpp(idl, fd, conf, eventname):
for p in idl.productions:
if p.kind == "interface":
write_cpp(eventname, p, fd)
def print_cpp_file(fd, conf, incdirs):
idl_paths = set()
fd.write("/* THIS FILE IS AUTOGENERATED - DO NOT EDIT */\n\n")
fd.write('#include "xpcAccEvents.h"\n')
includes = []
for e in conf.simple_events:
if e not in includes:
includes.append(("nsIAccessible%s" % e))
types = []
for e in conf.simple_events:
idl, idl_path = loadEventIDL(p, incdirs, e)
idl_paths.add(idl_path)
types.extend(interfaceAttributeTypes(idl))
for c in types:
fd.write('#include "%s.h"\n' % c)
fd.write("\n")
for e in conf.simple_events:
idl, idl_path = loadEventIDL(p, incdirs, e)
idl_paths.add(idl_path)
print_cpp(idl, fd, conf, e)
return idl_paths
def attributeVariableTypeAndName(a):
if a.realtype.nativeType("in").endswith("*"):
l = [
"nsCOMPtr<%s> m%s;"
% (a.realtype.nativeType("in").strip("* "), firstCap(a.name))
]
elif a.realtype.nativeType("in").count("nsAString"):
l = ["nsString m%s;" % firstCap(a.name)]
elif a.realtype.nativeType("in").count("nsACString"):
l = ["nsCString m%s;" % firstCap(a.name)]
else:
l = ["%sm%s;" % (a.realtype.nativeType("in"), firstCap(a.name))]
return ", ".join(l)
def writeAttributeGetter(fd, classname, a):
fd.write("NS_IMETHODIMP\n")
fd.write("%s::Get%s(" % (classname, firstCap(a.name)))
if a.realtype.nativeType("in").endswith("*"):
fd.write(
"%s** a%s" % (a.realtype.nativeType("in").strip("* "), firstCap(a.name))
)
elif a.realtype.nativeType("in").count("nsAString"):
fd.write("nsAString& a%s" % firstCap(a.name))
elif a.realtype.nativeType("in").count("nsACString"):
fd.write("nsACString& a%s" % firstCap(a.name))
else:
fd.write("%s*a%s" % (a.realtype.nativeType("in"), firstCap(a.name)))
fd.write(")\n")
fd.write("{\n")
if a.realtype.nativeType("in").endswith("*"):
fd.write(" NS_IF_ADDREF(*a%s = m%s);\n" % (firstCap(a.name), firstCap(a.name)))
elif a.realtype.nativeType("in").count("nsAString"):
fd.write(" a%s = m%s;\n" % (firstCap(a.name), firstCap(a.name)))
elif a.realtype.nativeType("in").count("nsACString"):
fd.write(" a%s = m%s;\n" % (firstCap(a.name), firstCap(a.name)))
else:
fd.write(" *a%s = m%s;\n" % (firstCap(a.name), firstCap(a.name)))
fd.write(" return NS_OK;\n")
fd.write("}\n\n")
def interfaces(iface):
interfaces = []
while iface.base:
interfaces.append(iface)
iface = iface.idl.getName(xpidl.TypeId(iface.base), iface.location)
interfaces.append(iface)
interfaces.reverse()
return interfaces
def allAttributes(iface):
attributes = []
for i in interfaces(iface):
attrs = filter(lambda m: isinstance(m, xpidl.Attribute), i.members)
attributes.extend(attrs)
return attributes
def write_cpp(eventname, iface, fd):
classname = "xpcAcc%s" % eventname
attributes = allAttributes(iface)
ccattributes = filter(
lambda m: m.realtype.nativeType("in").endswith("*"), attributes
)
fd.write("NS_IMPL_CYCLE_COLLECTION(%s" % classname)
for c in ccattributes:
fd.write(", m%s" % firstCap(c.name))
fd.write(")\n\n")
fd.write("NS_IMPL_CYCLE_COLLECTING_ADDREF(%s)\n" % classname)
fd.write("NS_IMPL_CYCLE_COLLECTING_RELEASE(%s)\n\n" % classname)
fd.write("NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(%s)\n" % classname)
for baseiface in interfaces(iface):
fd.write(" NS_INTERFACE_MAP_ENTRY(%s)\n" % baseiface.name)
fd.write("NS_INTERFACE_MAP_END\n\n")
for a in attributes:
writeAttributeGetter(fd, classname, a)
def get_conf(conf_file):
conf = Configuration(conf_file)
inc_dir = [
mozpath.join(buildconfig.topsrcdir, "accessible", "interfaces"),
mozpath.join(buildconfig.topsrcdir, "xpcom", "base"),
]
return conf, inc_dir
def gen_files(fd, conf_file):
deps = set()
conf, inc_dir = get_conf(conf_file)
deps.update(print_header_file(fd, conf, inc_dir))
with open(
os.path.join(os.path.dirname(fd.name), "xpcAccEvents.cpp"), "w"
) as cpp_fd:
deps.update(print_cpp_file(cpp_fd, conf, inc_dir))
return deps