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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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18
js/ui/iconGrid.js
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@ -67,8 +67,6 @@ class BaseIcon extends Shell.SquareBin {
super._init({ style_class: styleClass });
this.connect('destroy', this._onDestroy.bind(this));
this._box = new St.BoxLayout({
vertical: true,
x_expand: true,
@ -99,7 +97,8 @@ class BaseIcon extends Shell.SquareBin {
this.icon = null;
let cache = St.TextureCache.get_default();
this._iconThemeChangedId = cache.connect('icon-theme-changed', this._onIconThemeChanged.bind(this));
cache.connectObject(
'icon-theme-changed', this._onIconThemeChanged.bind(this), this);
}
// This can be overridden by a subclass, or by the createIcon
@ -148,14 +147,6 @@ class BaseIcon extends Shell.SquareBin {
this._createIconTexture(size);
}
_onDestroy() {
if (this._iconThemeChangedId > 0) {
let cache = St.TextureCache.get_default();
cache.disconnect(this._iconThemeChangedId);
this._iconThemeChangedId = 0;
}
}
_onIconThemeChanged() {
this._createIconTexture(this.iconSize);
}
@ -690,13 +681,12 @@ var IconGridLayout = GObject.registerClass({
}
vfunc_set_container(container) {
if (this._container)
this._container.disconnect(this._containerDestroyedId);
this._container?.disconnectObject(this);
this._container = container;
if (this._container)
this._containerDestroyedId = this._container.connect('destroy', this._onDestroy.bind(this));
this._container.connectObject('destroy', this._onDestroy.bind(this), this);
}
vfunc_get_preferred_width(_container, _forHeight) {