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js: Use (dis)connectObject()

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Start using the new methods to simplify signal cleanup. For now,
focus on replacing existing cleanups; in most cases this means
signals connected in the constructor and disconnected on destroy,
but also other cases with a similarly defined lifetime (say: from
show to hide).

This doesn't change signal connections that only exist for a short
time (say: once), handlers that are connected on-demand (say: the
first time a particular method is called), or connections that
aren't tracked (read: disconnected) at all.

We will eventually replace the latter with connectObject() as
well - especially from actor subclasses - but the changeset is
already big enough as-is :-)

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1953>
This commit is contained in:
Florian Müllner
2021-08-16 00:36:59 +02:00
committed by Marge Bot
parent f45ccc9143
commit 26235bbe54
54 changed files with 753 additions and 1674 deletions
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22
js/ui/messageList.js
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@ -171,21 +171,14 @@ class ScaleLayout extends Clutter.BinLayout {
if (this._container == container)
return;
if (this._container) {
for (let id of this._signals)
this._container.disconnect(id);
}
this._container?.disconnectObject(this);
this._container = container;
this._signals = [];
if (this._container) {
for (let signal of ['notify::scale-x', 'notify::scale-y']) {
let id = this._container.connect(signal, () => {
this.layout_changed();
});
this._signals.push(id);
}
this._container.connectObject(
'notify::scale-x', () => this.layout_changed(),
'notify::scale-y', () => this.layout_changed(), this);
}
}
@ -586,11 +579,8 @@ var MessageListSection = GObject.registerClass({
this._list.connect('actor-added', this._sync.bind(this));
this._list.connect('actor-removed', this._sync.bind(this));
let id = Main.sessionMode.connect('updated',
this._sync.bind(this));
this.connect('destroy', () => {
Main.sessionMode.disconnect(id);
});
Main.sessionMode.connectObject(
'updated', () => this._sync(), this);
this._empty = true;
this._canClear = false;