On Mon, 23 Jun 2025 08:26:30 GMT, Johan Vos <j...@openjdk.org> wrote:

>> After spending a year in the sandbox repository, the Headless Platform is 
>> now ready to be reviewed in the main repository.
>> 
>> ### the Headless Platform
>> The Headless Platform is a top-level com.sun.glass.ui platform that replaces 
>> the second-level Monocle-Headless subplatform, that is part of the top-level 
>> Monocle platform. 
>> The platform can be used like any other platform, especially for running 
>> headless JavaFX applications, or for running tests (e.g. on CI systems)
>> 
>> ### changes
>> The code for the Headless Platform is in a new package 
>> com.sun.glass.ui.headless in the javafx.graphics module, and it does not 
>> require a code change in other packages.
>> This PR adds a simple change in the `build.gradle` file, to make the 
>> Headless Platform the standard when running headless tests (instead of using 
>> Monocle/Headless)
>> 
>> ### enable the Headless Platform
>> Setting the system property `glass.platform` to `Headless` will select the 
>> Headless Platform instead of the default one (either gtk, mac or win).
>> 
>> ### testing
>> `gradlew --info -PHEADLESS_TEST=true -PFULL_TEST=true :systemTests:cleanTest 
>> :systemTests:test`
>> runs all the system tests, apart from the robot tests. There are 2 failing 
>> tests, but there are valid reasons for those to fail.
>> 
>> ### robot tests
>> Most of the robot tests are working on headless as well. add `-PUSE_ROBOT` 
>> to test those.
>
> Johan Vos has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   Process reviewer comments

modules/javafx.graphics/src/main/java/com/sun/glass/ui/headless/HeadlessApplication.java
 line 138:

> 136:     @Override
> 137:     protected Screen[] staticScreen_getScreens() {
> 138:         final int screenWidth = 1000;

Should this be something that can be configured by the developer? E.g. a simple 
system property with a default value of 1000?

-------------

PR Review Comment: https://git.openjdk.org/jfx/pull/1836#discussion_r2164464903

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