michael@0: # Copyright (c) 2012 The Chromium Authors. All rights reserved.
michael@0: # Use of this source code is governed by a BSD-style license that can be
michael@0: # found in the LICENSE file.
michael@0: 
michael@0: # This file is meant to be included into a target to provide a rule
michael@0: # to generate jni bindings for system Java-files in a consistent manner.
michael@0: #
michael@0: # To use this, create a gyp target with the following form:
michael@0: # {
michael@0: #   'target_name': 'android_jar_jni_headers',
michael@0: #   'type': 'none',
michael@0: #   'variables': {
michael@0: #     'jni_gen_dir': 'chrome',
michael@0: #     'input_java_class': 'java/io/InputStream.class',
michael@0: #     'input_jar_file': '<(android_sdk)/android.jar',
michael@0: #   },
michael@0: #   'includes': [ '../build/jar_file_jni_generator.gypi' ],
michael@0: # },
michael@0: 
michael@0: {
michael@0:   'variables': {
michael@0:     'jni_generator': '<(DEPTH)/base/android/jni_generator/jni_generator.py',
michael@0:   },
michael@0:   'actions': [
michael@0:     {
michael@0:       'action_name': 'generate_jni_headers_from_jar_file',
michael@0:       'inputs': [
michael@0:         '<(jni_generator)',
michael@0:         '<(input_jar_file)',
michael@0:       ],
michael@0:       'variables': {
michael@0:         'java_class_name': '<!(basename <(input_java_class)|sed "s/\.class//")'
michael@0:       },
michael@0:       'outputs': [
michael@0:         '<(SHARED_INTERMEDIATE_DIR)/<(jni_gen_dir)/jni/<(java_class_name)_jni.h',
michael@0:       ],
michael@0:       'action': [
michael@0:         '<(jni_generator)',
michael@0:         '-j',
michael@0:         '<(input_jar_file)',
michael@0:         '--input_file',
michael@0:         '<(input_java_class)',
michael@0:         '--output_dir',
michael@0:         '<(SHARED_INTERMEDIATE_DIR)/<(jni_gen_dir)/jni',
michael@0:       ],
michael@0:       'message': 'Generating JNI bindings from  <(input_jar_file)/<(input_java_class)',
michael@0:       'process_outputs_as_sources': 1,
michael@0:     },
michael@0:   ],
michael@0:   # This target exports a hard dependency because it generates header
michael@0:   # files.
michael@0:   'hard_dependency': 1,
michael@0: }