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screenShield: Don't unnecessarily close or recreate inhibitors

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ScreenShield::_syncInhibitor() was closing (and recreating) the
inhibitor everytime it was called, even if no change was needed.
This gets called in various places, including on property changes in
the login1 dbus object. These happen by the time logind already started
suspending at which point new inhibitors can no longer be created. It is
only waiting for existing inhibitors to be closed, so closing the
inhibitor without a new inhibitor will cause the suspending to proceed
immediately if no other inhibitors are present. This can also happen
before the lock screen is shown, which will then complete after resume.

Fix this by keeping track of the expected inhibition state and only
create or close inhibitors if there was a change to that.

Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3736

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1927>
This commit is contained in:
Sebastian Keller 2021-07-23 17:35:00 +02:00 committed by Marge Bot
parent 4a3e3ee1b8
commit fb313033ea
1 changed files with 20 additions and 10 deletions
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30
js/ui/screenShield.js
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@ -122,6 +122,7 @@ var ScreenShield = class {
this._isActive = false;
this._isLocked = false;
this._inUnlockAnimation = false;
this._inhibited = false;
this._activationTime = 0;
this._becameActiveId = 0;
this._lockTimeoutId = 0;
@ -203,20 +204,29 @@ var ScreenShield = class {
}
_syncInhibitor() {
let lockEnabled = this._settings.get_boolean(LOCK_ENABLED_KEY);
let lockLocked = this._lockSettings.get_boolean(DISABLE_LOCK_KEY);
let inhibit = this._loginSession && this._loginSession.Active &&
!this._isActive && lockEnabled && !lockLocked && Main.sessionMode.unlockDialog;
const lockEnabled = this._settings.get_boolean(LOCK_ENABLED_KEY);
const lockLocked = this._lockSettings.get_boolean(DISABLE_LOCK_KEY);
const inhibit = !!this._loginSession && this._loginSession.Active &&
!this._isActive && lockEnabled && !lockLocked &&
!!Main.sessionMode.unlockDialog;
if (inhibit === this._inhibited)
return;
this._inhibited = inhibit;
if (inhibit) {
this._loginManager.inhibit(_("GNOME needs to lock the screen"),
this._loginManager.inhibit(_('GNOME needs to lock the screen'),
inhibitor => {
if (this._inhibitor)
this._inhibitor.close(null);
this._inhibitor = inhibitor;
if (inhibitor) {
if (this._inhibitor)
inhibitor.close(null);
else
this._inhibitor = inhibitor;
}
});
} else {
if (this._inhibitor)
this._inhibitor.close(null);
this._inhibitor?.close(null);
this._inhibitor = null;
}
}