michael@0: #!/usr/bin/env python
michael@0: # header.py - Generate C++ header files from IDL.
michael@0: #
michael@0: # This Source Code Form is subject to the terms of the Mozilla Public
michael@0: # License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0: # file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0: 
michael@0: import sys, os, xpidl, makeutils
michael@0: 
michael@0: def strip_end(text, suffix):
michael@0:     if not text.endswith(suffix):
michael@0:         return text
michael@0:     return text[:-len(suffix)]
michael@0: 
michael@0: def findIDL(includePath, interfaceFileName):
michael@0:     for d in includePath:
michael@0:         # Not os.path.join: we need a forward slash even on Windows because
michael@0:         # this filename ends up in makedepend output.
michael@0:         path = d + '/' + interfaceFileName
michael@0:         if os.path.exists(path):
michael@0:             return path
michael@0:     raise BaseException("No IDL file found for interface %s "
michael@0:                         "in include path %r"
michael@0:                         % (interfaceFileName, includePath))
michael@0: 
michael@0: eventFileNameToIdl = {};
michael@0: 
michael@0: def loadIDL(parser, includePath, filename):
michael@0:     global eventFileNameToIdl
michael@0:     if filename in eventFileNameToIdl:
michael@0:         return eventFileNameToIdl[filename]
michael@0: 
michael@0:     idlFile = findIDL(includePath, filename)
michael@0:     if not idlFile in makeutils.dependencies:
michael@0:         makeutils.dependencies.append(idlFile)
michael@0:     idl = p.parse(open(idlFile).read(), idlFile)
michael@0:     idl.resolve(includePath, p)
michael@0:     eventFileNameToIdl[filename] = idl
michael@0:     return idl
michael@0: 
michael@0: def loadEventIDL(parser, includePath, eventname):
michael@0:     eventidl = ("nsIDOM%s.idl" % eventname)
michael@0:     return loadIDL(parser, includePath, eventidl)
michael@0: 
michael@0: class Configuration:
michael@0:     def __init__(self, filename):
michael@0:         config = {}
michael@0:         execfile(filename, config)
michael@0:         self.simple_events = config.get('simple_events', [])
michael@0:         self.special_includes = config.get('special_includes', [])
michael@0:         self.exclude_automatic_type_include = config.get('exclude_automatic_type_include', [])
michael@0:         self.xpidl_to_native = config.get('xpidl_to_native', [])
michael@0: 
michael@0: def readConfigFile(filename):
michael@0:     return Configuration(filename)
michael@0: 
michael@0: def firstCap(str):
michael@0:     return str[0].upper() + str[1:]
michael@0: 
michael@0: def getBaseName(iface):
michael@0:     return ("%s" % iface.base[6:])
michael@0: 
michael@0: def print_header_file(fd, conf):
michael@0:     fd.write("#ifndef _gen_mozilla_idl_generated_events_h_\n"
michael@0:              "#define _gen_mozilla_idl_generated_events_h_\n\n")
michael@0:     fd.write("/* THIS FILE IS AUTOGENERATED - DO NOT EDIT */\n")
michael@0:     fd.write("#include \"nscore.h\"\n")
michael@0:     fd.write("class nsIDOMEvent;\n")
michael@0:     fd.write("class nsPresContext;\n")
michael@0:     fd.write("namespace mozilla {\n");
michael@0:     fd.write("class WidgetEvent;\n")
michael@0:     fd.write("namespace dom {\n");
michael@0:     fd.write("class EventTarget;\n")
michael@0:     fd.write("}\n");
michael@0:     fd.write("}\n\n");
michael@0:     for e in conf.simple_events:
michael@0:         fd.write("nsresult\n")
michael@0:         fd.write("NS_NewDOM%s(nsIDOMEvent** aInstance, " % e)
michael@0:         fd.write("mozilla::dom::EventTarget* aOwner, ")
michael@0:         fd.write("nsPresContext* aPresContext, mozilla::WidgetEvent* aEvent);\n")
michael@0: 
michael@0:     fd.write("\n#endif\n")
michael@0: 
michael@0: def print_classes_file(fd, conf):
michael@0:     fd.write("#ifndef _gen_mozilla_idl_generated_event_declarations_h_\n")
michael@0:     fd.write("#define _gen_mozilla_idl_generated_event_declarations_h_\n\n")
michael@0: 
michael@0:     fd.write("#include \"mozilla/dom/Event.h\"\n");
michael@0:     includes = []
michael@0:     for s in conf.special_includes:
michael@0:         if not s in includes:
michael@0:             includes.append(strip_end(s, ".h"))
michael@0: 
michael@0:     for e in conf.simple_events:
michael@0:         if not e in includes:
michael@0:             includes.append(("nsIDOM%s" % e))
michael@0: 
michael@0:     attrnames = []
michael@0:     for e in conf.simple_events:
michael@0:         idl = loadEventIDL(p, options.incdirs, e)
michael@0:         collect_names_and_non_primitive_attribute_types(idl, attrnames, includes)
michael@0: 
michael@0:     for c in includes:
michael@0:       if not c in conf.exclude_automatic_type_include:
michael@0:             fd.write("#include \"%s.h\"\n" % c)
michael@0: 
michael@0:     for e in conf.simple_events:
michael@0:         fd.write('#include "mozilla/dom/%sBinding.h"\n' % e);
michael@0: 
michael@0:     fd.write("namespace mozilla {\n")
michael@0:     fd.write("namespace dom {\n")
michael@0:     for e in conf.simple_events:
michael@0:         idl = loadEventIDL(p, options.incdirs, e)
michael@0:         for pr in idl.productions:
michael@0:             if pr.kind == 'interface':
michael@0:                 print_class_declaration(e, pr, fd, conf)
michael@0:     fd.write("} // namespace dom\n")
michael@0:     fd.write("} // namespace mozilla\n\n")
michael@0:     fd.write("#endif\n");
michael@0: 
michael@0: def print_class_declaration(eventname, iface, fd, conf):
michael@0:     classname = ("%s" % eventname)
michael@0:     basename = getBaseName(iface)
michael@0:     attributes = []
michael@0:     ccattributes = []
michael@0:     for member in iface.members:
michael@0:         if isinstance(member, xpidl.Attribute):
michael@0:             attributes.append(member)
michael@0:             if (member.realtype.nativeType('in').endswith('*')):
michael@0:                 ccattributes.append(member);
michael@0: 
michael@0:     baseinterfaces = []
michael@0:     baseiface = iface.idl.getName(iface.base, iface.location)
michael@0:     while baseiface.name != "nsIDOMEvent":
michael@0:         baseinterfaces.append(baseiface)
michael@0:         baseiface = baseiface.idl.getName(baseiface.base, baseiface.location)
michael@0:     baseinterfaces.reverse()
michael@0: 
michael@0:     allattributes = []
michael@0:     for baseiface in baseinterfaces:
michael@0:         for member in baseiface.members:
michael@0:             if isinstance(member, xpidl.Attribute):
michael@0:                 allattributes.append(member)
michael@0:     allattributes.extend(attributes);
michael@0: 
michael@0:     fd.write("\nclass %s MOZ_FINAL : public %s, public %s\n" % (classname, basename, iface.name))
michael@0:     fd.write("{\n")
michael@0:     fd.write("public:\n")
michael@0:     fd.write("  %s(mozilla::dom::EventTarget* aOwner, " % classname)
michael@0:     fd.write("nsPresContext* aPresContext = nullptr, mozilla::WidgetEvent* aEvent = nullptr);\n");
michael@0:     fd.write("  virtual ~%s();\n\n" % classname)
michael@0:     fd.write("  NS_DECL_ISUPPORTS_INHERITED\n")
michael@0:     fd.write("  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(%s, %s)\n" % (classname, basename))
michael@0:     fd.write("  NS_FORWARD_TO_EVENT\n")
michael@0: 
michael@0:     for baseiface in baseinterfaces:
michael@0:         baseimpl = ("%s" % baseiface.name[6:])
michael@0:         fd.write("  NS_FORWARD_%s(%s::)\n" % (baseiface.name.upper(), baseimpl))
michael@0: 
michael@0:     fd.write("  NS_DECL_%s\n" % iface.name.upper())
michael@0: 
michael@0:     hasVariant = False
michael@0:     for a in allattributes:
michael@0:         if a.type == "nsIVariant":
michael@0:             hasVariant = True
michael@0:             break;
michael@0:     fd.write("  static already_AddRefed<%s> Constructor(const GlobalObject& aGlobal, " % eventname)
michael@0:     if hasVariant:
michael@0:         fd.write("JSContext* aCx, ")
michael@0:     fd.write("const nsAString& aType, ")
michael@0:     fd.write("const %sInit& aParam, " % eventname)
michael@0:     fd.write("ErrorResult& aRv);\n\n")
michael@0: 
michael@0:     fd.write("  virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE\n")
michael@0:     fd.write("  {\n")
michael@0:     fd.write("    return mozilla::dom::%sBinding::Wrap(aCx, this);\n" % eventname)
michael@0:     fd.write("  }\n\n")
michael@0: 
michael@0:     for a in attributes:
michael@0:         """xpidl methods take care of string member variables!"""
michael@0:         firstCapName = firstCap(a.name)
michael@0:         cleanNativeType = a.realtype.nativeType('in').strip('* ')
michael@0:         if a.realtype.nativeType('in').count("nsAString"):
michael@0:             continue
michael@0:         elif a.realtype.nativeType('in').count("nsIVariant"):
michael@0:             fd.write("  void Get%s(JSContext* aCx, JS::MutableHandle<JS::Value> aRetval, ErrorResult& aRv);\n\n" % firstCapName);
michael@0:         elif a.realtype.nativeType('in').endswith('*'):
michael@0:             fd.write("  already_AddRefed<%s> Get%s()\n" % (xpidl_to_native(cleanNativeType, conf), firstCapName))
michael@0:             fd.write("  {\n");
michael@0:             fd.write("    nsCOMPtr<%s> %s = do_QueryInterface(m%s);\n" % (xpidl_to_canonical(cleanNativeType, conf), a.name, firstCapName))
michael@0:             fd.write("    return %s.forget().downcast<%s>();\n" % (a.name, xpidl_to_native(cleanNativeType, conf)))
michael@0:             fd.write("  }\n\n");
michael@0:         else:
michael@0:             fd.write("  %s %s()\n" % (cleanNativeType, firstCapName))
michael@0:             fd.write("  {\n");
michael@0:             fd.write("    return m%s;\n" % firstCapName)
michael@0:             fd.write("  }\n\n");
michael@0: 
michael@0:     fd.write("  void ")
michael@0:     fd.write("Init%s(" % eventname)
michael@0:     if hasVariant:
michael@0:         fd.write("JSContext* aCx, ")
michael@0:     fd.write("const nsAString& aType, bool aCanBubble, bool aCancelable")
michael@0:     for a in allattributes:
michael@0:         writeNativeAttributeParams(fd, a, conf)
michael@0:     fd.write(", ErrorResult& aRv);\n\n")
michael@0: 
michael@0:     fd.write("protected:\n")
michael@0:     for a in attributes:
michael@0:         fd.write("  %s\n" % attributeVariableTypeAndName(a))
michael@0:     fd.write("};\n")
michael@0: 
michael@0: def collect_names_and_non_primitive_attribute_types(idl, attrnames, forwards):
michael@0:     for p in idl.productions:
michael@0:         if p.kind == 'interface' or p.kind == 'dictionary':
michael@0:             interfaces = []
michael@0:             base = p.base
michael@0:             baseiface = p
michael@0:             while base is not None:
michael@0:                 baseiface = baseiface.idl.getName(baseiface.base, baseiface.location)    
michael@0:                 interfaces.append(baseiface)
michael@0:                 base = baseiface.base
michael@0: 
michael@0:             interfaces.reverse()
michael@0:             interfaces.append(p)
michael@0: 
michael@0:             for iface in interfaces:
michael@0:                 collect_names_and_non_primitive_attribute_types_from_interface(iface, attrnames, forwards)
michael@0: 
michael@0: def collect_names_and_non_primitive_attribute_types_from_interface(iface, attrnames, forwards):
michael@0:     for member in iface.members:
michael@0:         if isinstance(member, xpidl.Attribute):
michael@0:             if not member.name in attrnames:
michael@0:                 attrnames.append(member.name)
michael@0:             if member.realtype.nativeType('in').endswith('*'):
michael@0:                 t = member.realtype.nativeType('in').strip('* ')
michael@0:                 if not t in forwards:
michael@0:                     forwards.append(t)
michael@0: 
michael@0: def print_cpp(idl, fd, conf, eventname):
michael@0:     for p in idl.productions:
michael@0:         if p.kind == 'interface':
michael@0:             write_cpp(eventname, p, fd, conf)
michael@0: 
michael@0: def print_cpp_file(fd, conf):
michael@0:     fd.write("/* THIS FILE IS AUTOGENERATED - DO NOT EDIT */\n\n")
michael@0:     fd.write('#include "GeneratedEventClasses.h"\n')
michael@0:     fd.write('#include "xpcprivate.h"\n');
michael@0:     fd.write('#include "mozilla/dom/Event.h"\n');
michael@0:     fd.write('#include "mozilla/dom/EventTarget.h"\n');
michael@0: 
michael@0:     for e in conf.simple_events:
michael@0:         idl = loadEventIDL(p, options.incdirs, e)
michael@0:         print_cpp(idl, fd, conf, e)
michael@0: 
michael@0: def init_value(attribute):
michael@0:     realtype = attribute.realtype.nativeType('in')
michael@0:     realtype = realtype.strip(' ')
michael@0:     if realtype.endswith('*'):
michael@0:         return "nullptr"
michael@0:     if realtype == "bool":
michael@0:         return "false"
michael@0:     if realtype.count("nsAString"):
michael@0:         return ""
michael@0:     if realtype.count("nsACString"):
michael@0:         return ""
michael@0:     if realtype.count("JS::Value"):
michael@0:       raise BaseException("JS::Value not supported in simple events!")
michael@0:     return "0"
michael@0: 
michael@0: def attributeVariableTypeAndName(a):
michael@0:     if a.realtype.nativeType('in').endswith('*'):
michael@0:         l = ["nsCOMPtr<%s> m%s;" % (a.realtype.nativeType('in').strip('* '),
michael@0:                    firstCap(a.name))]
michael@0:     elif a.realtype.nativeType('in').count("nsAString"):
michael@0:         l = ["nsString m%s;" % firstCap(a.name)]
michael@0:     elif a.realtype.nativeType('in').count("nsACString"):
michael@0:         l = ["nsCString m%s;" % firstCap(a.name)]
michael@0:     else:
michael@0:         l = ["%sm%s;" % (a.realtype.nativeType('in'),
michael@0:                        firstCap(a.name))]
michael@0:     return ", ".join(l)
michael@0: 
michael@0: def writeAttributeGetter(fd, classname, a):
michael@0:     fd.write("NS_IMETHODIMP\n")
michael@0:     fd.write("%s::Get%s(" % (classname, firstCap(a.name)))
michael@0:     if a.realtype.nativeType('in').endswith('*'):
michael@0:         fd.write("%s** a%s" % (a.realtype.nativeType('in').strip('* '), firstCap(a.name)))
michael@0:     elif a.realtype.nativeType('in').count("nsAString"):
michael@0:         fd.write("nsAString& a%s" % firstCap(a.name))
michael@0:     elif a.realtype.nativeType('in').count("nsACString"):
michael@0:         fd.write("nsACString& a%s" % firstCap(a.name))
michael@0:     else:
michael@0:         fd.write("%s*a%s" % (a.realtype.nativeType('in'), firstCap(a.name)))
michael@0:     fd.write(")\n");
michael@0:     fd.write("{\n");
michael@0:     if a.realtype.nativeType('in').endswith('*'):
michael@0:         fd.write("  NS_IF_ADDREF(*a%s = m%s);\n" % (firstCap(a.name), firstCap(a.name)))
michael@0:     elif a.realtype.nativeType('in').count("nsAString"):
michael@0:         fd.write("  a%s = m%s;\n" % (firstCap(a.name), firstCap(a.name)))
michael@0:     elif a.realtype.nativeType('in').count("nsACString"):
michael@0:         fd.write("  a%s = m%s;\n" % (firstCap(a.name), firstCap(a.name)))
michael@0:     else:
michael@0:         fd.write("  *a%s = %s();\n" % (firstCap(a.name), firstCap(a.name)))
michael@0:     fd.write("  return NS_OK;\n");
michael@0:     fd.write("}\n\n");
michael@0:     if a.realtype.nativeType('in').count("nsIVariant"):
michael@0:         fd.write("void\n")
michael@0:         fd.write("%s::Get%s(JSContext* aCx, JS::MutableHandle<JS::Value> aRetval, ErrorResult& aRv)\n" % (classname, firstCap(a.name)))
michael@0:         fd.write("{\n")
michael@0:         fd.write("  nsresult rv = NS_ERROR_UNEXPECTED;\n")
michael@0:         fd.write("  if (!m%s) {\n" % firstCap(a.name))
michael@0:         fd.write("    aRetval.setNull();\n")
michael@0:         fd.write("  } else if (!XPCVariant::VariantDataToJS(m%s, &rv, aRetval)) {\n" % (firstCap(a.name)))
michael@0:         fd.write("    aRv.Throw(NS_ERROR_FAILURE);\n")
michael@0:         fd.write("  }\n")
michael@0:         fd.write("}\n\n")
michael@0: 
michael@0: def writeAttributeParams(fd, a):
michael@0:     if a.realtype.nativeType('in').endswith('*'):
michael@0:         fd.write(", %s* a%s" % (a.realtype.nativeType('in').strip('* '), firstCap(a.name)))
michael@0:     elif a.realtype.nativeType('in').count("nsAString"):
michael@0:         fd.write(", const nsAString& a%s" % firstCap(a.name))
michael@0:     elif a.realtype.nativeType('in').count("nsACString"):
michael@0:         fd.write(", const nsACString& a%s" % firstCap(a.name))
michael@0:     else:
michael@0:         fd.write(", %s a%s" % (a.realtype.nativeType('in'), firstCap(a.name)))
michael@0: 
michael@0: def writeNativeAttributeParams(fd, a, conf):
michael@0:     if a.type == "nsIVariant":
michael@0:         fd.write(", JS::Value a%s" % firstCap(a.name));
michael@0:     elif a.realtype.nativeType('in').endswith('*'):
michael@0:         fd.write(", %s* a%s" % (xpidl_to_native(a.realtype.nativeType('in').strip('* '), conf), firstCap(a.name)))
michael@0:     elif a.realtype.nativeType('in').count("nsAString"):
michael@0:         fd.write(", const nsAString& a%s" % firstCap(a.name))
michael@0:     elif a.realtype.nativeType('in').count("nsACString"):
michael@0:         fd.write(", const nsACString& a%s" % firstCap(a.name))
michael@0:     else:
michael@0:         fd.write(", %s a%s" % (a.realtype.nativeType('in'), firstCap(a.name)))
michael@0: 
michael@0: def write_cpp(eventname, iface, fd, conf):
michael@0:     classname = ("%s" % eventname)
michael@0:     basename = getBaseName(iface)
michael@0:     attributes = []
michael@0:     ccattributes = []
michael@0:     for member in iface.members:
michael@0:         if isinstance(member, xpidl.Attribute):
michael@0:             attributes.append(member)
michael@0:             if (member.realtype.nativeType('in').endswith('*')):
michael@0:                 ccattributes.append(member);
michael@0: 
michael@0:     baseinterfaces = []
michael@0:     baseiface = iface.idl.getName(iface.base, iface.location)
michael@0:     while baseiface.name != "nsIDOMEvent":
michael@0:         baseinterfaces.append(baseiface)
michael@0:         baseiface = baseiface.idl.getName(baseiface.base, baseiface.location)
michael@0:     baseinterfaces.reverse()
michael@0: 
michael@0:     baseattributes = []
michael@0:     for baseiface in baseinterfaces:
michael@0:         for member in baseiface.members:
michael@0:             if isinstance(member, xpidl.Attribute):
michael@0:                 baseattributes.append(member)
michael@0: 
michael@0:     allattributes = []
michael@0:     allattributes.extend(baseattributes);
michael@0:     allattributes.extend(attributes);
michael@0: 
michael@0:     fd.write("namespace mozilla {\n")
michael@0:     fd.write("namespace dom {\n\n")
michael@0: 
michael@0:     fd.write("%s::%s(mozilla::dom::EventTarget* aOwner, " % (classname, classname))
michael@0:     fd.write("nsPresContext* aPresContext, mozilla::WidgetEvent* aEvent)\n");
michael@0:     fd.write(": %s(aOwner, aPresContext, aEvent)" % basename)
michael@0:     for a in attributes:
michael@0:         fd.write(",\n  m%s(%s)" % (firstCap(a.name), init_value(a)))
michael@0:     fd.write("\n{\n")
michael@0:     fd.write("}\n\n")
michael@0: 
michael@0:     fd.write("%s::~%s() {}\n\n" % (classname, classname))
michael@0: 
michael@0:     fd.write("NS_IMPL_CYCLE_COLLECTION_CLASS(%s)\n" % (classname))
michael@0:     fd.write("NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(%s, %s)\n" % (classname, basename))
michael@0:     for c in ccattributes:
michael@0:         fd.write("  NS_IMPL_CYCLE_COLLECTION_UNLINK(m%s)\n" % firstCap(c.name))
michael@0:     fd.write("NS_IMPL_CYCLE_COLLECTION_UNLINK_END\n\n");
michael@0:     fd.write("NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(%s, %s)\n" % (classname, basename))
michael@0:     for c in ccattributes:
michael@0:         fd.write("  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(m%s)\n" % firstCap(c.name))
michael@0:     fd.write("NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END\n\n");
michael@0: 
michael@0:     fd.write("NS_IMPL_ADDREF_INHERITED(%s, %s)\n" % (classname, basename))
michael@0:     fd.write("NS_IMPL_RELEASE_INHERITED(%s, %s)\n\n" % (classname, basename))
michael@0: 
michael@0:     fd.write("NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(%s)\n" % classname)
michael@0:     fd.write("  NS_INTERFACE_MAP_ENTRY(nsIDOM%s)\n" % eventname)
michael@0:     fd.write("NS_INTERFACE_MAP_END_INHERITING(%s)\n\n" % basename)
michael@0: 
michael@0:     hasVariant = False
michael@0:     for a in allattributes:
michael@0:         if a.type == "nsIVariant":
michael@0:             hasVariant = True
michael@0:             break;
michael@0: 
michael@0:     fd.write("already_AddRefed<%s>\n" % eventname)
michael@0:     fd.write("%s::Constructor(const GlobalObject& aGlobal, " % eventname)
michael@0:     if hasVariant:
michael@0:         fd.write("JSContext* aCx, ");
michael@0:     fd.write("const nsAString& aType, ")
michael@0:     fd.write("const %sInit& aParam, " % eventname)
michael@0:     fd.write("ErrorResult& aRv)\n")
michael@0:     fd.write("{\n")
michael@0:     fd.write("  nsCOMPtr<mozilla::dom::EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());\n")
michael@0:     fd.write("  nsRefPtr<%s> e = new %s(t, nullptr, nullptr);\n" % (eventname, eventname))
michael@0:     fd.write("  bool trusted = e->Init(t);\n")
michael@0:     fd.write("  e->Init%s(" % eventname)
michael@0:     if hasVariant:
michael@0:         fd.write("aCx, ");
michael@0:     fd.write("aType, aParam.mBubbles, aParam.mCancelable")
michael@0:     for a in allattributes:
michael@0:         fd.write(", aParam.m%s" % firstCap(a.name))
michael@0:     fd.write(", aRv);\n")
michael@0:     fd.write("  e->SetTrusted(trusted);\n")
michael@0:     fd.write("  return e.forget();\n")
michael@0:     fd.write("}\n\n")
michael@0: 
michael@0:     fd.write("NS_IMETHODIMP\n")
michael@0:     fd.write("%s::Init%s(" % (classname, eventname))
michael@0:     fd.write("const nsAString& aType, bool aCanBubble, bool aCancelable")
michael@0:     for a in allattributes:
michael@0:         writeAttributeParams(fd, a)
michael@0:     fd.write(")\n{\n")
michael@0:     fd.write("  nsresult rv = %s::Init%s(aType, aCanBubble, aCancelable" % (basename, ("%s" % iface.base[6:])))
michael@0:     for a in baseattributes:
michael@0:       fd.write(", a%s" % firstCap(a.name))
michael@0:     fd.write(");\n");
michael@0:     fd.write("  NS_ENSURE_SUCCESS(rv, rv);\n")
michael@0:     for a in attributes:
michael@0:         if a.realtype.nativeType("in").count("nsAString"):
michael@0:             fd.write("  if (!m%s.Assign(a%s, fallible_t())) {\n" % (firstCap(a.name), firstCap(a.name)))
michael@0:             fd.write("    return NS_ERROR_OUT_OF_MEMORY;\n")
michael@0:             fd.write("  }\n")
michael@0:         else:
michael@0:             fd.write("  m%s = a%s;\n" % (firstCap(a.name), firstCap(a.name)))
michael@0:     fd.write("  return NS_OK;\n")
michael@0:     fd.write("}\n\n")
michael@0: 
michael@0:     fd.write("void\n")
michael@0:     fd.write("%s::Init%s(" % (classname, eventname))
michael@0:     if hasVariant:
michael@0:         fd.write("JSContext* aCx, ")
michael@0:     fd.write("const nsAString& aType, bool aCanBubble, bool aCancelable")
michael@0:     for a in allattributes:
michael@0:         writeNativeAttributeParams(fd, a, conf)
michael@0:     fd.write(", ErrorResult& aRv")
michael@0:     fd.write(")\n")
michael@0:     fd.write("{\n");
michael@0:     for a in allattributes:
michael@0:         if a.type == "nsIVariant":
michael@0:             fd.write("  nsCOMPtr<nsIVariant> %s = dont_AddRef(XPCVariant::newVariant(aCx, a%s));\n" % (a.name, firstCap(a.name)))
michael@0:             fd.write("  if (!%s) {\n" % a.name)
michael@0:             fd.write("    aRv.Throw(NS_ERROR_FAILURE);\n")
michael@0:             fd.write("    return;\n")
michael@0:             fd.write("  }\n")
michael@0:         elif a.realtype.nativeType('in').endswith('*'):
michael@0:             xpidl_t = a.realtype.nativeType('in').strip('* ')
michael@0:             native_t = xpidl_to_native(xpidl_t, conf)
michael@0:             if xpidl_t != native_t:
michael@0:                 fd.write("  nsCOMPtr<%s> %s = do_QueryInterface(static_cast<%s*>(a%s));\n" % (xpidl_t, a.name, xpidl_to_canonical(xpidl_t, conf), firstCap(a.name)))
michael@0:     fd.write("  aRv = Init%s(" % classname);
michael@0:     fd.write("aType, aCanBubble, aCancelable")
michael@0:     for a in allattributes:
michael@0:         if a.realtype.nativeType('in').endswith('*'):
michael@0:             xpidl_t = a.realtype.nativeType('in').strip('* ')
michael@0:             native_t = xpidl_to_native(xpidl_t, conf)
michael@0:             if xpidl_t != native_t or a.type == "nsIVariant":
michael@0:                 fd.write(", %s" % a.name)
michael@0:                 continue
michael@0:         fd.write(", a%s" % firstCap(a.name))
michael@0:     fd.write(");\n}\n\n");
michael@0: 
michael@0:     for a in attributes:
michael@0:         writeAttributeGetter(fd, classname, a)
michael@0: 
michael@0:     fd.write("} // namespace dom\n")
michael@0:     fd.write("} // namespace mozilla\n\n")
michael@0: 
michael@0:     fd.write("nsresult\n")
michael@0:     fd.write("NS_NewDOM%s(nsIDOMEvent** aInstance, "  % eventname)
michael@0:     fd.write("mozilla::dom::EventTarget* aOwner, nsPresContext* aPresContext = nullptr, mozilla::WidgetEvent* aEvent = nullptr)\n")
michael@0:     fd.write("{\n")
michael@0:     fd.write("  mozilla::dom::%s* it = new mozilla::dom::%s(aOwner, aPresContext, aEvent);\n" % (classname, classname))
michael@0:     fd.write("  NS_ADDREF(it);\n")
michael@0:     fd.write("  *aInstance = static_cast<mozilla::dom::Event*>(it);\n")
michael@0:     fd.write("  return NS_OK;\n");
michael@0:     fd.write("}\n\n")
michael@0: 
michael@0: def toWebIDLType(attribute, inType=False, onlyInterface=False):
michael@0:     if attribute.type == "nsIVariant":
michael@0:         return "any";
michael@0:     if attribute.type == "nsISupports":
michael@0:         return "%s%s" % (attribute.type, "" if onlyInterface else "?")
michael@0:     if attribute.type.count("nsIDOM"):
michael@0:         return "%s%s" % (attribute.type[6:], "" if onlyInterface else "?")
michael@0:     if attribute.type.count("nsI"):
michael@0:         return "%s%s" % (attribute.type[3:], "" if onlyInterface else "?")
michael@0:     if attribute.realtype.nativeType('in').endswith('*') or attribute.realtype.nativeType('in').count("nsAString"):
michael@0:         return "%s%s" % (attribute.type, "" if onlyInterface else "?")
michael@0:     return attribute.type
michael@0: 
michael@0: def write_webidl(eventname, iface, fd, conf, idl):
michael@0:     basename = ("%s" % iface.base[6:])
michael@0:     attributes = []
michael@0:     ccattributes = []
michael@0:     consts = []
michael@0:     hasInit = False
michael@0:     initMethod = "init%s" % eventname;
michael@0:     for member in iface.members:
michael@0:         if isinstance(member, xpidl.Attribute):
michael@0:             attributes.append(member)
michael@0:             if (member.realtype.nativeType('in').endswith('*')):
michael@0:                 ccattributes.append(member);
michael@0:         elif isinstance(member, xpidl.Method) and member.name == initMethod:
michael@0:             if not member.noscript and not member.notxpcom:
michael@0:                 hasInit = True
michael@0:         elif isinstance(member, xpidl.ConstMember):
michael@0:             consts.append(member);
michael@0:         else:
michael@0:             raise BaseException("Unsupported idl member %s::%s" % (eventname, member.name))
michael@0: 
michael@0:     baseinterfaces = []
michael@0:     baseiface = iface.idl.getName(iface.base, iface.location)
michael@0:     while baseiface.name != "nsIDOMEvent":
michael@0:         baseinterfaces.append(baseiface)
michael@0:         baseiface = baseiface.idl.getName(baseiface.base, baseiface.location)
michael@0:     baseinterfaces.reverse()
michael@0: 
michael@0:     allattributes = []
michael@0:     for baseiface in baseinterfaces:
michael@0:         for member in baseiface.members:
michael@0:             if isinstance(member, xpidl.Attribute):
michael@0:                 allattributes.append(member)
michael@0:     allattributes.extend(attributes)
michael@0: 
michael@0:     fd.write(
michael@0: """/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0:  */
michael@0: """)
michael@0: 
michael@0:     neededInterfaces = []
michael@0:     for a in attributes:
michael@0:         if a.realtype.nativeType('in').endswith('*'):
michael@0:             nativeType = a.realtype.nativeType('in').strip('* ')
michael@0:             mappingForWebIDL = False
michael@0:             for xp in conf.xpidl_to_native:
michael@0:                 if xp[0] == nativeType:
michael@0:                     mappingForWebIDL = True
michael@0:                     break;
michael@0:             if not mappingForWebIDL:
michael@0:                 webidlType = toWebIDLType(a, False, True)
michael@0:                 if (not webidlType in neededInterfaces and webidlType != "any"):
michael@0:                     neededInterfaces.append(webidlType);
michael@0: 
michael@0:     for i in neededInterfaces:
michael@0:         fd.write("interface %s;\n" % i)
michael@0: 
michael@0:     fd.write("\n");
michael@0:     fd.write("[Constructor(DOMString type, optional %sInit eventInitDict), HeaderFile=\"GeneratedEventClasses.h\"]\n" % eventname);
michael@0:     fd.write("interface %s : %s\n" % (eventname, basename))
michael@0:     fd.write("{\n")
michael@0: 
michael@0:     for c in consts:
michael@0:         fd.write("  const %s %s = %s;\n" % (c.type, c.name, c.getValue()))
michael@0:     if len(consts):
michael@0:         fd.write("\n")
michael@0: 
michael@0:     for a in attributes:
michael@0:         if a.realtype.nativeType('in').count("nsIVariant"):
michael@0:             fd.write("  [Throws]\n")
michael@0:             fd.write("  readonly attribute %s %s;\n" % (toWebIDLType(a), a.name))
michael@0:         elif a.realtype.nativeType('in').endswith('*') or a.realtype.nativeType('in').count("nsAString"):
michael@0:             fd.write("  readonly attribute %s %s;\n" % (toWebIDLType(a), a.name))
michael@0:         else:
michael@0:             fd.write("  readonly attribute %s %s;\n" % (a.type, a.name))
michael@0:     if hasInit:
michael@0:         fd.write("\n  [Throws]\n")
michael@0:         m = "  void %s(" % initMethod
michael@0:         fd.write(m)
michael@0:         indent = "".join(" " for i in range(len(m)))
michael@0:         indent = ",\n%s" % indent
michael@0:         fd.write("DOMString type")
michael@0:         fd.write(indent);
michael@0:         fd.write("boolean canBubble")
michael@0:         fd.write(indent);
michael@0:         fd.write("boolean cancelable")
michael@0:         for a in baseattributes + attributes:
michael@0:             fd.write(indent);
michael@0:             fd.write("%s %s" % (toWebIDLType(a, True), a.name))
michael@0:         fd.write(");\n");
michael@0:     fd.write("};\n\n")
michael@0: 
michael@0:     dname = "%sInit" % eventname
michael@0:     for p in idl.productions:
michael@0:         if p.kind == "dictionary" and p.name == dname:
michael@0:             fd.write("dictionary %s : %sInit\n" % (dname, basename))
michael@0:             fd.write("{\n")
michael@0:             # We want to keep the same ordering what interface has.
michael@0:             for ifaceattribute in attributes:
michael@0:                 for member in p.members:
michael@0:                     if member.name == ifaceattribute.name:
michael@0:                         a = member
michael@0:                         if a.realtype.nativeType('in').endswith('*'):
michael@0:                             fd.write("  %s %s = null;\n" % (toWebIDLType(a, True), a.name))
michael@0:                         elif a.realtype.nativeType('in').count("nsAString"):
michael@0:                             if a.defvalue is None:
michael@0:                                 if a.nullable:
michael@0:                                     fd.write("  %s? %s = null;\n" % (a.type, a.name))
michael@0:                                 else:
michael@0:                                     fd.write("  %s %s = \"\";\n" % (a.type, a.name))
michael@0:                             else:
michael@0:                                 if a.nullable:
michael@0:                                     fd.write("  %s? %s = \"%s\";\n" % (a.type, a.name, a.defvalue))
michael@0:                                 else:
michael@0:                                     fd.write("  %s %s = \"%s\";\n" % (a.type, a.name, a.defvalue))
michael@0:                         else:
michael@0:                             if a.defvalue is None:
michael@0:                                 if a.type == "boolean":
michael@0:                                     fd.write("  %s %s = false;\n" % (a.type, a.name))
michael@0:                                 else:
michael@0:                                     fd.write("  %s %s = 0;\n" % (a.type, a.name))
michael@0:                             # Infinity is not supported by all the types, but
michael@0:                             # WebIDL parser will then complain about the wrong values.
michael@0:                             elif a.defvalue == "Infinity":
michael@0:                                 fd.write("  unrestricted %s %s = Infinity;\n" % (a.type, a.name))
michael@0:                             elif a.defvalue == "-Infinity":
michael@0:                                 fd.write("  unrestricted %s %s = -Infinity;\n" % (a.type, a.name))
michael@0:                             else:
michael@0:                                 fd.write("  %s %s = %s;\n" % (a.type, a.name, a.defvalue))
michael@0:                     continue
michael@0:             fd.write("};\n")
michael@0:             return
michael@0: 
michael@0:     # There is no dictionary defined in the .idl file. Generate one based on
michael@0:     # the interface.
michael@0:     fd.write("dictionary %s : %sInit\n" % (dname, basename))
michael@0:     fd.write("{\n")
michael@0:     for a in attributes:
michael@0:         if a.realtype.nativeType('in').endswith('*'):
michael@0:             fd.write("  %s %s = null;\n" % (toWebIDLType(a, True), a.name))
michael@0:         elif a.realtype.nativeType('in').count("nsAString"):
michael@0:             fd.write("  %s? %s = \"\";\n" % (a.type, a.name))
michael@0:         elif a.type == "boolean":
michael@0:             fd.write("  %s %s = false;\n" % (a.type, a.name))
michael@0:         else:
michael@0:             fd.write("  %s %s = 0;\n" % (a.type, a.name))
michael@0:     fd.write("};\n")
michael@0: 
michael@0: def print_webidl_file(idl, fd, conf, eventname):
michael@0:     for p in idl.productions:
michael@0:         if p.kind == 'interface':
michael@0:             write_webidl(eventname, p, fd, conf, idl)
michael@0: 
michael@0: def xpidl_to_native(xpidl, conf):
michael@0:     for x in conf.xpidl_to_native:
michael@0:         if x[0] == xpidl:
michael@0:             return x[1]
michael@0:     return xpidl
michael@0: 
michael@0: def xpidl_to_canonical(xpidl, conf):
michael@0:     for x in conf.xpidl_to_native:
michael@0:         if x[0] == xpidl:
michael@0:             return x[2]
michael@0:     return xpidl
michael@0: 
michael@0: def native_to_xpidl(native, conf):
michael@0:     for x in conf.xpidl_to_native:
michael@0:         if x[1] == native:
michael@0:             return x[0]
michael@0:     return native
michael@0: 
michael@0: def print_webidl_files(webidlDir, conf):
michael@0:     for e in conf.simple_events:
michael@0:         idl = loadEventIDL(p, options.incdirs, e)
michael@0:         webidl = "%s/%s.webidl" % (webidlDir, e)
michael@0:         if not os.path.exists(webidl):
michael@0:             fd = open(webidl, 'w')
michael@0:             print_webidl_file(idl, fd, conf, e)
michael@0:             fd.close();
michael@0: 
michael@0: if __name__ == '__main__':
michael@0:     from optparse import OptionParser
michael@0:     o = OptionParser(usage="usage: %prog [options] configfile")
michael@0:     o.add_option('-I', action='append', dest='incdirs', default=['.'],
michael@0:                  help="Directory to search for imported files")
michael@0:     o.add_option('-o', "--stub-output",
michael@0:                  type='string', dest='stub_output', default=None,
michael@0:                  help="Quick stub C++ source output file", metavar="FILE")
michael@0:     o.add_option('--header-output', type='string', default=None,
michael@0:                  help="Quick stub header output file", metavar="FILE")
michael@0:     o.add_option('--makedepend-output', type='string', default=None,
michael@0:                  help="gnumake dependencies output file", metavar="FILE")
michael@0:     o.add_option('--cachedir', dest='cachedir', default=None,
michael@0:                  help="Directory in which to cache lex/parse tables.")
michael@0:     o.add_option('--class-declarations', type='string', default=None,
michael@0:                  help="Class declarations", metavar="FILE")
michael@0:     o.add_option('--webidltarget', dest='webidltarget', default=None,
michael@0:                  help="Directory in which to store generated WebIDL files.")
michael@0:     (options, filenames) = o.parse_args()
michael@0:     if len(filenames) != 1:
michael@0:         o.error("Exactly one config filename is needed.")
michael@0:     filename = filenames[0]
michael@0: 
michael@0:     if options.cachedir is not None:
michael@0:         if not os.path.isdir(options.cachedir):
michael@0:             os.mkdir(options.cachedir)
michael@0:         sys.path.append(options.cachedir)
michael@0: 
michael@0:     # Instantiate the parser.
michael@0:     p = xpidl.IDLParser(outputdir=options.cachedir)
michael@0: 
michael@0:     conf = readConfigFile(filename)
michael@0: 
michael@0:     if options.header_output is not None:
michael@0:         outfd = open(options.header_output, 'w')
michael@0:         print_header_file(outfd, conf)
michael@0:         outfd.close()
michael@0:     if options.class_declarations is not None:
michael@0:         outfd = open(options.class_declarations, 'w')
michael@0:         print_classes_file(outfd, conf)
michael@0:         outfd.close()
michael@0:     if options.stub_output is not None:
michael@0:         makeutils.targets.append(options.stub_output)
michael@0:         outfd = open(options.stub_output, 'w')
michael@0:         print_cpp_file(outfd, conf)
michael@0:         outfd.close()
michael@0:         if options.makedepend_output is not None:
michael@0:             makeutils.writeMakeDependOutput(options.makedepend_output)
michael@0: 
michael@0:     if options.webidltarget is not None:
michael@0:         print_webidl_files(options.webidltarget, conf)
michael@0: