Bug 194500 – [WPE][GTK] Sleep disabler code should inhibit idle when a "System" sleep disabler is requested

• Status: RESOLVED
• Resolution: FIXED
• Component: WebKitGTK

[Michael Catanzaro]

Splitting this out of bug #18697, I see I wrote this comment when writing SleepDisablerGlib:

    // We don't support suspend ("System") inhibitors, only idle inhibitors.
    // To get suspend inhibitors, we'd need to use the fancy GNOME
    // SessionManager API, which requires registering as a client application,
    // which is not practical from the web process. Secondly, because the only
    // current use of a suspend inhibitor in WebKit,
    // HTMLMediaElement::shouldDisableSleep, is suspicious. There's really no
    // valid reason for WebKit to ever block suspend, only idle.

There are three things wrong with this comment:

 * Nowadays, GNOME suspends the computer automatically on inactivity, and we actually do want to prevent that.
 * Inhibiting idle does affect the autosuspend countdown. So the current code should prevent automatic suspend, just not manual suspend. (I think I stand by my comment that we do not want to inhibit normal suspend, since that would just be annoying.)
 * I don't know why I thought HTMLMediaElement::shouldDisableSleep was suspicious.

Anyway, I guess the behavior we want is to ignore the Type argument and just always inhibit idle. That is, treat type=System the same way we current treat type=Display. I couldn't decide which to do when I wrote this code, but in retrospect that would have been a better option.

[Michael Catanzaro]

(In reply to Michael Catanzaro from comment #0)
> Splitting this out of bug #18697

I meant bug #186971

[Michael Catanzaro]

Created attachment 361680 [details]
Patch

[WebKit Commit Bot]

Comment on attachment 361680 [details]
Patch

Clearing flags on attachment: 361680

Committed r241290: <https://trac.webkit.org/changeset/241290>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.