It is not very clear how to determine whether a given source type is valid or not: https://w3c.github.io/compute-pressure/#dfn-valid-source-types just says "global system thermals" and "central processing unit" (as represented in PressureSource) are the valid source types, but the check in observe() is really for whether a source type is supported by the underlying platform/hardware rather than being "valid" from a spec sense.
I think observe() should use some different concept that better represents what it is trying to do, which could also integrate more nicely with the automation steps (since a virtual pressure source could be configured to report itself as non-existent).
The current text says:
It is not very clear how to determine whether a given source type is valid or not: https://w3c.github.io/compute-pressure/#dfn-valid-source-types just says "global system thermals" and "central processing unit" (as represented in PressureSource) are the valid source types, but the check in
observe()is really for whether a source type is supported by the underlying platform/hardware rather than being "valid" from a spec sense.I think
observe()should use some different concept that better represents what it is trying to do, which could also integrate more nicely with the automation steps (since a virtual pressure source could be configured to report itself as non-existent).