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1# Copyright (c) 2011 The Chromium Embedded Framework Authors. All rights
2# reserved. Use of this source code is governed by a BSD-style license that
3# can be found in the LICENSE file.
4
5from __future__ import absolute_import
6from cef_parser import *
7
8
9def make_cpptoc_header(header, clsname):
10  cls = header.get_class(clsname)
11  if cls is None:
12    raise Exception('Class does not exist: ' + clsname)
13
14  dllside = cls.is_library_side()
15
16  directory = cls.get_file_directory()
17  defname = ''
18  if not directory is None:
19    defname += directory + '_'
20  defname += get_capi_name(clsname[3:], False)
21  defname = defname.upper()
22
23  capiname = cls.get_capi_name()
24
25  result = get_copyright()
26
27  result += '#ifndef CEF_LIBCEF_DLL_CPPTOC_'+defname+'_CPPTOC_H_\n'+ \
28            '#define CEF_LIBCEF_DLL_CPPTOC_'+defname+'_CPPTOC_H_\n' + \
29            '#pragma once\n'
30
31  if dllside:
32    result += """
33#if !defined(BUILDING_CEF_SHARED)
34#error This file can be included DLL-side only
35#endif
36"""
37  else:
38    result += """
39#if !defined(WRAPPING_CEF_SHARED)
40#error This file can be included wrapper-side only
41#endif
42"""
43
44  # include the headers for this class
45  result += '\n#include "include/'+cls.get_file_name()+'"\n' \
46            '#include "include/capi/'+cls.get_capi_file_name()+'"\n'
47
48  # include headers for any forward declared classes that are not in the same file
49  declares = cls.get_forward_declares()
50  for declare in declares:
51    dcls = header.get_class(declare)
52    if dcls.get_file_name() != cls.get_file_name():
53      result += '#include "include/'+dcls.get_file_name()+'"\n' \
54                '#include "include/capi/'+dcls.get_capi_file_name()+'"\n'
55
56  base_class_name = header.get_base_class_name(clsname)
57  base_scoped = True if base_class_name == 'CefBaseScoped' else False
58  if base_scoped:
59    template_file = 'cpptoc_scoped.h'
60    template_class = 'CefCppToCScoped'
61  else:
62    template_file = 'cpptoc_ref_counted.h'
63    template_class = 'CefCppToCRefCounted'
64
65  result += '#include "libcef_dll/cpptoc/' + template_file + '"'
66  result += '\n\n// Wrap a C++ class with a C structure.\n'
67
68  if dllside:
69    result += '// This class may be instantiated and accessed DLL-side only.\n'
70  else:
71    result += '// This class may be instantiated and accessed wrapper-side only.\n'
72
73  result +=  'class '+clsname+'CppToC\n'+ \
74             '    : public ' + template_class + '<'+clsname+'CppToC, '+clsname+', '+capiname+'> {\n'+ \
75             ' public:\n'+ \
76             '  '+clsname+'CppToC();\n'+ \
77             '  virtual ~'+clsname+'CppToC();\n'+ \
78             '};\n\n'
79
80  result += '#endif  // CEF_LIBCEF_DLL_CPPTOC_' + defname + '_CPPTOC_H_'
81
82  return result
83
84
85def write_cpptoc_header(header, clsname, dir):
86  # give the output file the same directory offset as the input file
87  cls = header.get_class(clsname)
88  dir = os.path.dirname(os.path.join(dir, cls.get_file_name()))
89  file = os.path.join(dir, get_capi_name(clsname[3:], False) + '_cpptoc.h')
90
91  newcontents = make_cpptoc_header(header, clsname)
92  return (file, newcontents)
93
94
95# test the module
96if __name__ == "__main__":
97  import sys
98
99  # verify that the correct number of command-line arguments are provided
100  if len(sys.argv) < 3:
101    sys.stderr.write('Usage: ' + sys.argv[0] + ' <infile> <classname>')
102    sys.exit()
103
104  # create the header object
105  header = obj_header()
106  header.add_file(sys.argv[1])
107
108  # dump the result to stdout
109  sys.stdout.write(make_cpptoc_header(header, sys.argv[2]))
110