src/android_platform.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org )
   2 #
   3 # Copyright 2014 Alexis Laferrière <alexis.laf@xymus.net>
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 # Compile program for the Android platform
  18 module android_platform
  19
  20 import platform
  21 import abstract_compiler
  22 import common_ffi
  23 import android_annotations
  24
  25 redef class ToolContext
  26         redef fun platform_from_name(name)
  27         do
  28                 if name == "android" then return new AndroidPlatform
  29                 return super
  30         end
  31 end
  32
  33 class AndroidPlatform
  34         super Platform
  35
  36         redef fun supports_libunwind do return false
  37
  38         redef fun toolchain(toolcontext) do return new AndroidToolchain(toolcontext)
  39 end
  40
  41 class AndroidToolchain
  42         super MakefileToolchain
  43
  44         var android_project_root: nullable String = null
  45
  46         redef fun compile_dir
  47         do
  48                 var android_project_root = "{super}/android/"
  49                 self.android_project_root = android_project_root
  50                 return "{android_project_root}/jni/nit_compile/"
  51         end
  52
  53         redef fun write_files(compiler, compile_dir, cfiles)
  54         do
  55                 var android_project_root = android_project_root.as(not null)
  56                 var project = toolcontext.modelbuilder.android_project_for(compiler.mainmodule)
  57                 var short_project_name = compiler.mainmodule.name
  58                 var release = toolcontext.opt_release.value
  59
  60                 var app_name = project.name
  61                 if app_name == null then app_name = compiler.mainmodule.name
  62
  63                 var app_package = project.java_package
  64                 if app_package == null then app_package = "org.nitlanguage.{short_project_name}"
  65
  66                 var app_version = project.version
  67                 if app_version == null then app_version = "1.0"
  68
  69                 # Clear the previous android project, so there is no "existing project warning"
  70                 # or conflict between Java files of different projects
  71                 if android_project_root.file_exists then android_project_root.rmdir
  72
  73                 var args = ["android", "-s",
  74                         "create", "project",
  75                         "--name", short_project_name,
  76                         "--target", "android-10",
  77                         "--path", android_project_root,
  78                         "--package", app_package,
  79                         "--activity", short_project_name]
  80                 toolcontext.exec_and_check(args, "Android project error")
  81
  82                 # create compile_dir
  83                 var dir = "{android_project_root}/jni/"
  84                 if not dir.file_exists then dir.mkdir
  85
  86                 dir = compile_dir
  87                 if not dir.file_exists then dir.mkdir
  88
  89                 # compile normal C files
  90                 super(compiler, compile_dir, cfiles)
  91
  92                 # Gather extra C files generated elsewhere than in super
  93                 for f in compiler.extern_bodies do
  94                         if f isa ExternCFile then cfiles.add(f.filename.basename(""))
  95                 end
  96
  97                 ## Generate delagating makefile
  98                 dir = "{android_project_root}/jni/"
  99                 """
 100 include $(call all-subdir-makefiles)
 101                 """.write_to_file("{dir}/Android.mk")
 102
 103                 ### generate makefile into "{compile_dir}/Android.mk"
 104                 dir = compile_dir
 105                 """
 106 LOCAL_PATH := $(call my-dir)
 107 include $(CLEAR_VARS)
 108
 109 LOCAL_CFLAGS    := -D ANDROID
 110 LOCAL_MODULE    := main
 111 LOCAL_SRC_FILES := \\
 112 {{{cfiles.join(" \\\n")}}}
 113 LOCAL_LDLIBS    := -llog -landroid -lEGL -lGLESv1_CM -lz
 114 LOCAL_STATIC_LIBRARIES := android_native_app_glue png
 115
 116 include $(BUILD_SHARED_LIBRARY)
 117
 118 $(call import-module,android/native_app_glue)
 119                 """.write_to_file("{dir}/Android.mk")
 120
 121                 ### generate AndroidManifest.xml
 122                 dir = android_project_root
 123                 """<?xml version="1.0" encoding="utf-8"?>
 124 <!-- BEGIN_INCLUDE(manifest) -->
 125 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 126         package="{{{app_package}}}"
 127         android:versionCode="{{{project.version_code}}}"
 128         android:versionName="{{{app_version}}}">
 129
 130     <!-- This is the platform API where NativeActivity was introduced. -->
 131     <uses-sdk android:minSdkVersion="9" />
 132
 133     <application
 134                 android:label="@string/app_name"
 135                 android:hasCode="true"
 136                 android:debuggable="{{{not release}}}">
 137
 138         <!-- Our activity is the built-in NativeActivity framework class.
 139              This will take care of integrating with our NDK code. -->
 140         <activity android:name="android.app.NativeActivity"
 141                 android:label="@string/app_name"
 142                 android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
 143                 android:configChanges="orientation|keyboardHidden"
 144                 android:screenOrientation="portrait">
 145             <!-- Tell NativeActivity the name of or .so -->
 146             <meta-data android:name=\"{{{app_package}}}\"
 147                     android:value=\"{{{app_name}}}\" />
 148             <intent-filter>
 149                 <action android:name="android.intent.action.MAIN" />
 150                 <category android:name="android.intent.category.LAUNCHER" />
 151             </intent-filter>
 152         </activity>
 153
 154 {{{project.manifest_application_lines.join("\n")}}}
 155
 156     </application>
 157
 158 {{{project.manifest_lines.join("\n")}}}
 159
 160 </manifest>
 161 <!-- END_INCLUDE(manifest) -->
 162                 """.write_to_file("{dir}/AndroidManifest.xml")
 163
 164                 ### generate res/values/strings.xml
 165                 dir = "{android_project_root}/res/"
 166                 if not dir.file_exists then dir.mkdir
 167                 dir = "{dir}/values/"
 168                 if not dir.file_exists then dir.mkdir
 169                 """<?xml version="1.0" encoding="utf-8"?>
 170 <resources>
 171     <string name="app_name">{{{app_name}}}</string>
 172 </resources>
 173                 """.write_to_file("{dir}/strings.xml")
 174
 175                 ### Link to png sources
 176                 # libpng is not available on Android NDK
 177                 # FIXME make obtionnal when we have alternatives to mnit
 178                 var nit_dir = toolcontext.nit_dir
 179                 var share_dir =  "{nit_dir or else ""}/share/"
 180                 if nit_dir == null or not share_dir.file_exists then
 181                         print "Android project error: Nit share directory not found, please use the environment variable NIT_DIR"
 182                         exit 1
 183                 end
 184                 share_dir = share_dir.realpath
 185                 var target_png_dir = "{android_project_root}/jni/png"
 186                 if not target_png_dir.file_exists then
 187                         toolcontext.exec_and_check(["ln", "-s", "{share_dir}/png/", target_png_dir], "Android project error")
 188                 end
 189
 190                 ### Link to assets (for mnit and others)
 191                 # This will be accessed from `android_project_root`
 192                 var assets_dir
 193                 if compiler.mainmodule.location.file != null then
 194                         # it is a real file, use "{file}/../assets"
 195                         assets_dir = "{compiler.mainmodule.location.file.filename.dirname}/../assets"
 196                 else
 197                         # probably used -m, use "."
 198                         assets_dir = "assets"
 199                 end
 200                 if assets_dir.file_exists then
 201                         assets_dir = assets_dir.realpath
 202                         var target_assets_dir = "{android_project_root}/assets"
 203                         if not target_assets_dir.file_exists then
 204                                 toolcontext.exec_and_check(["ln", "-s", assets_dir, target_assets_dir], "Android project error")
 205                         end
 206                 end
 207         end
 208
 209         redef fun write_makefile(compiler, compile_dir, cfiles)
 210         do
 211                 # Do nothing, already done in `write_files`
 212         end
 213
 214         redef fun compile_c_code(compiler, compile_dir)
 215         do
 216                 var android_project_root = android_project_root.as(not null)
 217                 var release = toolcontext.opt_release.value
 218
 219                 # Compile C code (and thus Nit)
 220                 toolcontext.exec_and_check(["ndk-build", "-s", "-j", "4", "-C", android_project_root], "Android project error")
 221
 222                 # Generate the apk
 223                 var args = ["ant", "-q", "-f", android_project_root+"/build.xml"]
 224                 if release then
 225                         args.add "release"
 226                 else args.add "debug"
 227                 toolcontext.exec_and_check(args, "Android project error")
 228
 229                 # Move the apk to the target
 230                 var outname = toolcontext.opt_output.value
 231                 if outname == null then outname = "{compiler.mainmodule.name}.apk"
 232
 233                 var src_apk_suffix
 234                 if release then
 235                         src_apk_suffix = "release-unsigned"
 236                 else src_apk_suffix = "debug"
 237
 238                 toolcontext.exec_and_check(["mv", "{android_project_root}/bin/{compiler.mainmodule.name}-{src_apk_suffix}.apk", outname], "Android project error")
 239         end
 240 end
 241
 242 redef class JavaClassTemplate
 243         redef fun write_to_files(compdir)
 244         do
 245                 var jni_path = "jni/nit_compile/"
 246                 if compdir.has_suffix(jni_path) then
 247                         var path = "{compdir.substring(0, compdir.length-jni_path.length)}/src/"
 248                         return super(path)
 249                 else return super
 250         end
 251 end