A Flutter Embedder that talks to Wayland
** ARCHIVED REPO **
I recommend use of https://github.com/toyota-connected/ivi-homescreen/ which is re-write of this proof of concept app.
- Ubuntu 18/20 deps:
sudo apt-get install cmake lib-wayland++ libgl1-mesa-dev libegl1-mesa-dev libgles2-mesa-dev libxkbcommon-dev rapidjson-dev clang - Fedora 33/34 deps:
sudo dnf install wayland-devel libxkbcommon-devel rapidjson-devel pugixml-devel waylandpp-devel clang
mkdir build && cd build
CXX=/usr/bin/clang++ CC=/usr/bin/clang cmake ..
make -j VERBOSE=1
- log out
- select gear icon
- select
Ubuntu on Wayland - login as usual
Flutter Wayland Embedder
========================
Usage: `flutter_wayland <asset_path> <flutter_flags>`
This utility runs an instance of a Flutter application and renders using
Wayland core protocols.
The Flutter tools can be obtained at https://flutter.io/
app_path: This either points to asset bundle path, or
an Ahead Of Time (AOT) shared library (.so).
asset_path: The Flutter application code needs to be snapshotted using
the Flutter tools and the assets packaged in the appropriate
location. This can be done for any Flutter application by
running `flutter build bundle` while in the directory of a
valid Flutter project. This should package all the code and
assets in the "build/flutter_assets" directory. Specify this
directory as the first argument to this utility.
flutter_flags: Typically empty. These extra flags are passed directly to the
Flutter engine. To see all supported flags, run
`flutter_tester --help` using the test binary included in the
Flutter tools.
cd ~/development
export PATH=`pwd`/flutter/bin:$PATH
flutter doctor -v
git clone https://github.com/flutter/gallery.git
cd gallery
flutter channel dev
flutter upgrade
flutter build bundle
cd flutter_wayland/build
cp ~/development/flutter/bin/cache/artifacts/engine/linux-x64/icudtl.dat .
./flutter_wayland /home/joel/development/gallery/build/flutter_assets
Note: the flutter engine and gallery channel must match, or you will see something like this:
[ERROR:flutter/shell/common/shell.cc(103)] Dart Error: Can't load Kernel binary: Invalid SDK hash.
[ERROR:flutter/runtime/dart_isolate.cc(171)] Could not prepare isolate.
[ERROR:flutter/runtime/runtime_controller.cc(415)] Could not create root isolate.
[ERROR:flutter/shell/common/shell.cc(588)] Could not launch engine with configuration.
A run without errors might look like this:
$ ./flutter_wayland /home/joel/development/gallery/build/flutter_assets
LOG: /mnt/raid10/flutter_wayland/src/main.cc:65: Arg: /home/joel/development/gallery/build/flutter_assets
Pointer Present
Keyboard Present
assets_path: /home/joel/development/gallery/build/flutter_assets
load_aot: 0
flutter: Observatory listening on http://127.0.0.1:36061/E9T-fNgSjiU=/
LOG: /mnt/raid10/flutter_wayland/src/platform_channel.cc:108: PlatformChannel: SystemChrome.setApplicationSwitcherDescription