Instead of having an annoying loop that constantly reschedules a
Core::EventLoop trigger, have the ALooperEventLoopManager do it itself
in the did_post_event() function.
We cannot simply re-use the Unix implementation directly because that
implementation expects to actually be called all the time in order to
service timers. If you don't call its' pump() method, timers do not get
triggered. So, we do still need the seconary thread for Timers that was
added earlier.
Similar to the RequestServer, bind this from the WebContentService
implementation and have it work the same way. Deduplicate some code
while we're here.
Add a RequestServerService class that uses the LadybirdServiceBase class
added previously. Bind to it from the WebContentService's service_main()
during startup.
Create LadybirdServiceBase to hold the standard "set resource dir" and
"init ipc sockets" service functionality that will be common between the
WebContent, RequestServer, and WebSocket services.
Refactor the handler class slightly to avoid the HandlerLeak lint by
making the class a static class inside the companion object and use a
WeakReference to the service instead of a strong one.
The FIXME at the bottom of Timer.nativeRun was on the money, and was
the cause of some leaked timers. Solve the issue by passing the
EventLoopImplementation to the JVM Timer object and retrieving it's
thread_local timer list, and posting the events to the Impl rather than
trying to invoke the receiver's timer event callback directly in
the Timer thread. Because the implementation of
ALooperEventLoopManager::did_post_event() reaches for
EventLoop::current(), we also need to make sure that the timer thread
acutally *has* an EventLoop, even if we don't expect to use it for
anything. And we need to make sure to pump it to clear out any of the
poke() invocations sending 4 bytes to the wake pipe for that thread.
This function used to live in AndroidPlatform.cpp, but was removed
during the transition to the new app. We still need to extract the
assets from the tarball that CMake creates. At least, until we come
up with a generic "Resource" concept in LibCore.
Timers run in their own thread, to take advantage of existing Java
Executor features. By hooking into ALooper, we can spin the main
Activity's UI thread event loop without causing a fuss, or spinning the
CPU by just polling our event loop constantly.
This will let us spawn a new process for an Android Service to handle
all our WebContent needs. The ServiceConnection is manged by each
WebView. The lifecycle of the Service is not quite clear yet, but each
bindService call will get a unique Messenger that can be used to
transfer the WebContent side of the LibIPC socketpair we use in other
ports.
The simple smoke test makes sure that we can boot up an android emulator
with our package in it, and that the WebView is visible on boot.
More tests to come with more features :^)
This folder is gitignored because we copy a generated tar file to it
during the build so that the android build tools will add it to our
APK file. However, the gitkeep was not re-added when the folder moved.
This allows our WebViewImplementationNative class to paint into an
Android Bitmap class from the onDraw() view event. We also set the
viewport geometry from the view since we're setting the Kotlin Bitmap
at the same time.
This template app from Android Studio should hopefully be more fun to
work on than the Qt wrapped application we were using before. :^)
It currently builds the native code using gradle rules, and has a stub
WebViewImplementationNative class that will wrap a c++ class of the same
name that inhertis from WebView::ViewImplementation. Spawning helper
processes and creating proper views in Kotlin is next on the list.
