libreoffice-online

History
Rash419 c4183d2709 android: fix app crashes after closing the document - It exits LOActivity when lokit thread finishes using lokit_main_mutex. But if we edit document and exit without saving lokit thread gets finished but COOLWSD is still running to clean up the docBrokers. It takes some time to clean up this docBrokers. We need to exit the LOActivity only after COOLWSD is finished - for that I have added coolwsdRunningMutex again - it was removed in `ad32888d7c` Signed-off-by: Rash419 <rashesh.padia@collabora.com> Change-Id: Ic9785f5aa55deafbac98efc4013bd3376d0ba62d		2023-08-16 12:44:37 +05:30
..
app	android: enable dark mode in documents	2023-08-09 17:37:16 +02:00
gradle/wrapper
lib	android: fix app crashes after closing the document	2023-08-16 12:44:37 +05:30
templates	CollaboraOnline#6546 enable automatic color in default paragraph style	2023-08-10 12:22:26 +02:00
.gitignore
build.gradle.in
gradle.properties
gradlew
gradlew.bat
README
settings.gradle
README

The development of this Android app has to be done on Linux, it's currently not possible to
build the native parts on Windows.

* Compile LibreOffice master for Android.

  Do this in the folder where you cloned the LibreOffice core (e.g master-android).

  Create an autogen.input file:

      --build=x86_64-unknown-linux-gnu
      --with-android-ndk=/home/$USER/Android/Sdk/ndk-bundle
      --with-android-sdk=/home/$USER/Android/Sdk
      --with-distro=LibreOfficeAndroid
      --enable-sal-log

  Run ./autogen.sh && make

* Build zstd for Android

git clone https://android.googlesource.com/platform/external/zstd/ android-zstd
cd android-zstd
mkdir -p install/armeabi-v7a
cd install/armeabi-v7a

NDK_PATH=~/Android/Sdk/ndk-bundle
cmake \
  -DCMAKE_TOOLCHAIN_FILE=${NDK_PATH}/build/cmake/android.toolchain.cmake \
  -DANDROID_ABI=armeabi-v7a \
  -DCMAKE_ANDROID_ARCH_ABI=armeabi-v7a \
  -DANDROID_NDK=${NDK_PATH} \
  -DCMAKE_BUILD_TYPE=Release \
  -DCMAKE_SYSTEM_NAME=Android \
  -DCMAKE_SYSTEM_VERSION=21 \
  ../../build/cmake
make

* Build zstd for several platforms:

  scripts/build-zstd.sh ~/Android/Sdk/ndk-bundle /opt/libreoffice

This will create a set of folders in install/ that you can configure with.

* Build the POCO for Android

  # clone the poco repository in the same folder where LibreOffice core and online folders are placed.
  git clone https://github.com/pocoproject/poco poco-android
  cd poco-android

  # use the 1.10.1 branch
  git checkout -b poco-1.10.1 origin/poco-1.10.1

  # configure
  ./configure --config=Android --no-samples --no-tests --omit=Crypto,NetSSL_OpenSSL,Zip,Data,Data/SQLite,Data/ODBC,Data/MySQL,MongoDB,PDF,CppParser,PageCompiler,JWT

  # make it
  PATH="$PATH":~/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin make -j8 ANDROID_ABI=armeabi-v7a CC=armv7a-linux-androideabi21-clang CXX=armv7a-linux-androideabi21-clang++ SYSLIBS=-static-libstdc++

  # install it to /opt/poco-android
  PATH="$PATH":~/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin make -j8 ANDROID_ABI=armeabi-v7a CC=armv7a-linux-androideabi21-clang CXX=armv7a-linux-androideabi21-clang++ SYSLIBS=-static-libstdc++ install INSTALLDIR=/opt/poco-android

* 64bit POCO for Android

  # checkout the 1.10.1 in a different location and apply the following patch:
  --- a/build/config/Android
  +++ b/build/config/Android
  @@ -21,6 +21,11 @@ TOOL      = arm-linux-androideabi
   ARCHFLAGS = -march=armv7-a -mfloat-abi=softfp
   LINKFLAGS = -Wl,--fix-cortex-a8
   else
  +ifeq ($(ANDROID_ABI),arm64-v8a)
  +TOOL      = aarch64-linux-android
  +#ARCHFLAGS = -march=armv7-a -mfloat-abi=softfp
  +#LINKFLAGS = -Wl,--fix-cortex-a8
  +else
   ifeq ($(ANDROID_ABI),x86)
   TOOL      = i686-linux-android
   ARCHFLAGS = -march=i686 -msse3 -mstackrealign -mfpmath=sse
  @@ -29,6 +34,7 @@ $(error Invalid ABI specified in ANDROID_ABI)
   endif
   endif
   endif
  +endif

   #
   # Define Tools

  # configure as above:
  ./configure --config=Android --no-samples --no-tests --omit=Crypto,NetSSL_OpenSSL,Zip,Data,Data/SQLite,Data/ODBC,Data/MySQL,MongoDB,PDF,CppParser,PageCompiler,JWT

  # and make it:
  PATH="$PATH":~/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin make -j8 ANDROID_ABI=arm64-v8a CC=aarch64-linux-android21-clang CXX=aarch64-linux-android21-clang++ SYSLIBS=-static-libstdc++

  # install
  PATH="$PATH":~/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin make -j8 ANDROID_ABI=arm64-v8a CC=aarch64-linux-android21-clang CXX=aarch64-linux-android21-clang++ SYSLIBS=-static-libstdc++ install INSTALLDIR=/opt/poco-android-64bit

* Poco for x86 (if you want to add the support for that into the APK too):

  # checkout the 1.10.1 in yet another location
  git clone https://github.com/pocoproject/poco poco-android-x86
  cd poco-android-x86
  git checkout -b poco-1.10.1 origin/poco-1.10.1

  # configure
  ./configure --config=Android --no-samples --no-tests --omit=Crypto,NetSSL_OpenSSL,Zip,Data,Data/SQLite,Data/ODBC,Data/MySQL,MongoDB,PDF,CppParser,PageCompiler,JWT

  # build
  PATH="$PATH":~/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin make -j8 ANDROID_ABI=x86 CC=i686-linux-android21-clang CXX=i686-linux-android21-clang++ SYSLIBS=-static-libstdc++

  # install
  PATH="$PATH":~/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin make -j8 ANDROID_ABI=x86 CC=i686-linux-android21-clang CXX=i686-linux-android21-clang++ SYSLIBS=-static-libstdc++ install INSTALLDIR=/opt/poco-android-x86

* Poco for x86_64 (if you want to add the support for that into the APK too):

  # checkout the 1.10.1 in yet another location
  git clone https://github.com/pocoproject/poco poco-android-x86-64
  cd poco-android-x86-64
  git checkout -b poco-1.10.1 origin/poco-1.10.1

  # and apply the following patch:
  diff --git a/build/config/Android b/build/config/Android
  index 9227a3352..1abf6df7c 100644
  --- a/build/config/Android
  +++ b/build/config/Android
  @@ -25,10 +25,14 @@ ifeq ($(ANDROID_ABI),x86)
   TOOL      = i686-linux-android
   ARCHFLAGS = -march=i686 -msse3 -mstackrealign -mfpmath=sse
   else
  +ifeq ($(ANDROID_ABI),x86_64)
  +TOOL      = x86_64-linux-android
  +else
   $(error Invalid ABI specified in ANDROID_ABI)
   endif
   endif
   endif
  +endif
   
   #
   # Define Tools

  # configure
  ./configure --config=Android --no-samples --no-tests --omit=Crypto,NetSSL_OpenSSL,Zip,Data,Data/SQLite,Data/ODBC,Data/MySQL,MongoDB,PDF,CppParser,PageCompiler,JWT

  # build
  PATH="$PATH":~/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin make -j8 ANDROID_ABI=x86_64 CC=x86_64-linux-android21-clang CXX=x86_64-linux-android21-clang++ SYSLIBS=-static-libstdc++

  # install
  PATH="$PATH":~/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin make -j8 ANDROID_ABI=x86_64 CC=x86_64-linux-android21-clang CXX=x86_64-linux-android21-clang++ SYSLIBS=-static-libstdc++ install INSTALLDIR=/opt/poco-android-x86-64

* Configure the online.git (eg. in online-android folder)

  Don't forget to change --with-lo-builddir in the following:

  ./autogen.sh && ./configure CC=~/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi21-clang CXX=~/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi21-clang++ --host=arm-linux-androideabi --enable-androidapp --with-lo-builddir=/local/libreoffice/master-android --with-poco-includes=/opt/poco-android/include --with-poco-libs=/opt/poco-android/lib --with-zstd-includes=/opt/libreoffice/android-zstd/lib --with-zstd-libs=/opt/libreoffice/android-zstd/install/armeabi-v7a/lib --disable-setcap --enable-silent-rules --enable-debug

* Build the JavaScript, HTML and CSS files also in the online-android folder

  # just run 'make'
  make

* Build the actual app

  + Start Android Studio
  + Open this 'android' subdir as a project
  + Build from Android Studio (Build -> Make Project)

Or

  + command line:  ./gradlew build

== Building 32bit + 64bit combined .apk ==

  + you need to build both a 32bit (armeabi-v7a) and 64bit (arm64-v8a) core
  + you need to build both a 32bit and 64bit POCO
  + and then provide paths to both to the ./configure, separated by a colon ':',
    like:

    --with-lo-builddir=/local/libreoffice/master-android-release:/local/libreoffice/master-android-release-64bit \
    --with-poco-includes=/opt/poco-android/include:/opt/poco-android-64bit/include \
    --with-poco-libs=/opt/poco-android/lib:/opt/poco-android-64bit/lib \

== Debugging ==

To debug the native code in Android Studio, you need the debugging symbols and
to setup lldb to actually read & use them.

* Add debugging symbols for the modules you are interested in

  To autogen.input, add something like:

    --enable-symbols="vcl/ desktop/ sal/ svx/ framework/ sfx2/ tools/ cppu/ cppuhelper/ filter/ comphelper/ Library_sw Library_swd Library_swui"

  clean the appropriate modules, like

    make vcl.clean desktop.clean sal.clean svx.clean framework.clean sfx2.clean tools.clean cppu.clean cppuhelper.clean filter.clean comphelper.clean sw.clean

  and rebuild using 'make'.

* Add android/obj/local/armeabi-v7a from core.git as a Symbol Directory

  In Android Studio, choose Run -> Debug... -> Edit Configurations...

  There go to the Android App -> app, choose the Debugger tab, and:

  Debug type: Auto (or Dual)

  Symbol Directories: here add the full path, like

    /local/libreoffice/master-android/android/obj/local/armeabi-v7a

  This path contains the non-stripped version of the liblo-native-code.so, and
  the debugger will read the symbols from that one (even if the APK contains
  the stripped version). *NB* ensure that this is before any internal source
  directories - since the internal source contains stripped native code.

  [Alternatively you can add the following to your ~/.lldbinit instead:

    settings set target.inline-breakpoint-strategy always
    settings append target.exec-search-paths /local/libreoffice/master-android/android/obj/local/armeabi-v7a
  ]

* To use pretty printers for types like OUString, add the following to your
  ~/.lldbinit:

  command script import '/local/libreoffice/master-android/solenv/lldb/libreoffice/LO.py'

From now on, you will be able to debug directly in the Android Studio
debugger.  Happy debugging!

Note: to re-build your app with a newly compiled libnative-lo code - it is

== Tip: How to speed up your core.git build ==

If you use icecream for parallel building, you can use it for
cross-compilation too.

  # first generate a tarball with the toolchain (once)
  icecc-create-env ~/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi21-clang ~/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi21-clang++

And add it and the paths to the compiler as the first things to the
autogen.input:

  CC=icecc [here copy what the output of ./autogen.sh without icecream said for C compiler]
  CXX=icecc [here copy what the output of ./autogen.sh without icecream said for C++ compiler]
  ICECC_VERSION=/path/to/the/tarball/generated/above/955ceb546ceb7a5715bf0223ddd788fe.tar.gz
  --with-parallelism=[amount of cpu threads in your icecream farm]
  --enable-icecream
  [...the original autogen.input...]

So the result will look something like this:

  CC=icecc /home/$USER/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -mthumb -march=armv7-a -mfloat-abi=softfp -mfpu=neon -Wl,--fix-cortex-a8 -gcc-toolchain /home/$USER/Android/Sdk/ndk-bundle/to>
  CXX=icecc /home/$USER/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ -mthumb -march=armv7-a -mfloat-abi=softfp -mfpu=neon -Wl,--fix-cortex-a8 -gcc-toolchain /home/$USER/Android/Sdk/ndk-bundle>
  ICECC_VERSION=/local/libreoffice/android/955ceb546ceb7a5715bf0223ddd788fe.tar.gz
  --with-parallelism=25
  --enable-icecream
  --build=x86_64-unknown-linux-gnu
  --with-android-ndk=/home/$USER/Android/Sdk/ndk-bundle
  --with-android-sdk=/home/$USER/Android/Sdk
  --with-distro=LibreOfficeAndroid
  --enable-sal-log