onExit is called whenever the application exits, i.e.
when the app canvas should no longer be displayed and
the loader/embedder code should take some action.
Emscripten provides two callbacks which can be used
here:
- onExit, called when the app exits (but see EXIT_RUNTIME)
- onAbort, called on abort errors.
These map to the two cases Qt's onExit supports. onExit
is not called when EXIT_RUNTIME is disabled, which means
we don't need the special case for exit code 0.
In addition call onExit on any exception. The second
call to showUi() in html_shell.html is then not needed
any more and we avoid duplicating the UI state handling
in user code.
Update the qtloader_integration test to handle changes in
behavior (we no longer set the error text on exit). Use
emscripten_force_exit() to simulate application exit -
using this function makes Emscripten call onExit even
when EXIT_RUNTIME is disabled.
Change-Id: I72b5463c1836e8d5054e594abbd304fbc67032b7
Reviewed-by: Piotr Wierciński <piotr.wiercinski@qt.io>
Reviewed-by: Mikołaj Boc <Mikolaj.Boc@qt.io>
(cherry picked from commit a4d1c30a1b52e797cce504f90bcf20d7943dd1f9)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Add support for downloading files from the web server
to the in-memory file system at application load time.
See included documentation for usage.
This preload functionality is different from Emscripten's
--preload-file and --embed-file in that the files are
not packed to a single data file or embedded in the
JavaScript runtime. Instead, the files are downloaded
individually from the web server, which means that they
can be cached individually, and also updated individually
without rebuilding the application.
Any file type can be preloaded. The primary use case
(at the moment) is preloading Qt plugins and QML imports.
Task-number: QTBUG-63925
Change-Id: I2b71b0d6a2c12ecd3ec58e319c679cd3f6b16631
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
(cherry picked from commit 64007c749703090ebf7f9b1b49b4267bb9993b99)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This property can take a either a WebAssembly.Module
or a promise to a module, and we don't have to specify
the exact type in the property name.
Change-Id: Iebaf52178253afe8c93cf78bbe0853461bf48b67
Reviewed-by: Mikołaj Boc <Mikolaj.Boc@qt.io>
(cherry picked from commit bc340abe877199af640d16f1fbeaf4b96c36fe14)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This is a minimal version of qtloader. The load function accepts
the same arguments as emscripten runtime with a few additions:
- qt.environment
- qt.onExit
- qt.containerElements
- qt.fontDpi
- qt.onLoaded
- qt.entryFunction
State handling has been removed in favor of making the load async
(assume loading when the promise is live).
Public APIs getting crashed status, exit text and code have been
refactored into the new qt.onExit event fed to load. No need for
keeping the state in the loader.
The loader is integration-tested. A test module with test APIs
has been created as a test harness.
The runtime APIs exposed by Qt (font dpi and screen API) are handled
by the qtloader seamlessly.
Change-Id: Iaee65702667da0349a475feae6b83244d966d98d
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
(cherry picked from commit b9491daad0ed1c4b9c74e0c3b23f87eb7ad4f37d)
