1# Copyright (c) 2012 The Chromium Authors. All rights reserved.
2# Use of this source code is governed by a BSD-style license that can be
3# found in the LICENSE file.
4
5# This file is meant to be included into a target to provide a rule
6# to generate jni bindings for Java-files in a consistent manner.
7#
8# To use this, create a gyp target with the following form:
9#  {
10#    'target_name': 'base_jni_headers',
11#    'type': 'none',
12#    'sources': [
13#      'android/java/src/org/chromium/base/BuildInfo.java',
14#      ...
15#      ...
16#      'android/java/src/org/chromium/base/SystemMessageHandler.java',
17#    ],
18#    'variables': {
19#      'jni_gen_package': 'base',
20#    },
21#    'includes': [ '../build/jni_generator.gypi' ],
22#  },
23#
24# The generated file name pattern can be seen on the "outputs" section below.
25# (note that RULE_INPUT_ROOT is the basename for the java file).
26#
27# See base/android/jni_generator/jni_generator.py for more info about the
28# format of generating JNI bindings.
29
30{
31  'variables': {
32    'jni_generator': '<(DEPTH)/base/android/jni_generator/jni_generator.py',
33    'jni_generator_jarjar_file%': '',
34    'jni_generator_ptr_type%': 'long',
35    # A comma separated string of include files.
36    'jni_generator_includes%': (
37        'base/android/jni_generator/jni_generator_helper.h'
38    ),
39    'native_exports%': '',
40  },
41  'rules': [
42    {
43      'rule_name': 'generate_jni_headers',
44      'extension': 'java',
45      'inputs': [
46        '<(jni_generator)',
47      ],
48      'outputs': [
49        '<(SHARED_INTERMEDIATE_DIR)/<(jni_gen_package)/jni/<(RULE_INPUT_ROOT)_jni.h',
50      ],
51      'action': [
52        '<(jni_generator)',
53        '--input_file',
54        '<(RULE_INPUT_PATH)',
55        '--output_dir',
56        '<(SHARED_INTERMEDIATE_DIR)/<(jni_gen_package)/jni',
57        '--includes',
58        '<(jni_generator_includes)',
59        '--optimize_generation',
60        '<(optimize_jni_generation)',
61        '--jarjar',
62        '<(jni_generator_jarjar_file)',
63        '--ptr_type',
64        '<(jni_generator_ptr_type)',
65        '<(native_exports)',
66      ],
67      'message': 'Generating JNI bindings from <(RULE_INPUT_PATH)',
68      'process_outputs_as_sources': 1,
69      'conditions': [
70        ['jni_generator_jarjar_file != ""', {
71          'inputs': [
72            '<(jni_generator_jarjar_file)',
73          ],
74        }]
75      ],
76    },
77  ],
78  'direct_dependent_settings': {
79    'include_dirs': [
80      '<(SHARED_INTERMEDIATE_DIR)/<(jni_gen_package)',
81    ],
82  },
83  # This target exports a hard dependency because it generates header
84  # files.
85  'hard_dependency': 1,
86  'conditions': [
87    ['android_webview_build==1', {
88      'variables': {
89        'native_exports%': '--native_exports',
90      },
91      'dependencies': [
92        '<(DEPTH)/build/android/android_exports.gyp:android_exports',
93      ],
94    }],
95  ],
96}
97
98