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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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54
js/ui/panel.js
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@ -38,7 +38,6 @@ var AppMenuButton = GObject.registerClass({
this._menuManager = panel.menuManager;
this._targetApp = null;
this._busyNotifyId = 0;
let bin = new St.Bin({ name: 'appMenu' });
this.add_actor(bin);
@ -75,8 +74,9 @@ var AppMenuButton = GObject.registerClass({
this._visible = !Main.overview.visible;
if (!this._visible)
this.hide();
this._overviewHidingId = Main.overview.connect('hiding', this._sync.bind(this));
this._overviewShowingId = Main.overview.connect('showing', this._sync.bind(this));
Main.overview.connectObject(
'hiding', this._sync.bind(this),
'showing', this._sync.bind(this), this);
this._spinner = new Animation.Spinner(PANEL_ICON_SIZE, {
animate: true,
@ -88,14 +88,12 @@ var AppMenuButton = GObject.registerClass({
this.setMenu(menu);
this._menuManager.addMenu(menu);
let tracker = Shell.WindowTracker.get_default();
let appSys = Shell.AppSystem.get_default();
this._focusAppNotifyId =
tracker.connect('notify::focus-app', this._focusAppChanged.bind(this));
this._appStateChangedSignalId =
appSys.connect('app-state-changed', this._onAppStateChanged.bind(this));
this._switchWorkspaceNotifyId =
global.window_manager.connect('switch-workspace', this._sync.bind(this));
Shell.WindowTracker.get_default().connectObject('notify::focus-app',
this._focusAppChanged.bind(this), this);
Shell.AppSystem.get_default().connectObject('app-state-changed',
this._onAppStateChanged.bind(this), this);
global.window_manager.connectObject('switch-workspace',
this._sync.bind(this), this);
this._sync();
}
@ -195,15 +193,12 @@ var AppMenuButton = GObject.registerClass({
let targetApp = this._findTargetApp();
if (this._targetApp != targetApp) {
if (this._busyNotifyId) {
this._targetApp.disconnect(this._busyNotifyId);
this._busyNotifyId = 0;
}
this._targetApp?.disconnectObject(this);
this._targetApp = targetApp;
if (this._targetApp) {
this._busyNotifyId = this._targetApp.connect('notify::busy', this._sync.bind(this));
this._targetApp.connectObject('notify::busy', this._sync.bind(this), this);
this._label.set_text(this._targetApp.get_name());
this.set_accessible_name(this._targetApp.get_name());
@ -230,33 +225,6 @@ var AppMenuButton = GObject.registerClass({
this.menu.setApp(this._targetApp);
this.emit('changed');
}
_onDestroy() {
if (this._appStateChangedSignalId > 0) {
let appSys = Shell.AppSystem.get_default();
appSys.disconnect(this._appStateChangedSignalId);
this._appStateChangedSignalId = 0;
}
if (this._focusAppNotifyId > 0) {
let tracker = Shell.WindowTracker.get_default();
tracker.disconnect(this._focusAppNotifyId);
this._focusAppNotifyId = 0;
}
if (this._overviewHidingId > 0) {
Main.overview.disconnect(this._overviewHidingId);
this._overviewHidingId = 0;
}
if (this._overviewShowingId > 0) {
Main.overview.disconnect(this._overviewShowingId);
this._overviewShowingId = 0;
}
if (this._switchWorkspaceNotifyId > 0) {
global.window_manager.disconnect(this._switchWorkspaceNotifyId);
this._switchWorkspaceNotifyId = 0;
}
super._onDestroy();
}
});
var ActivitiesButton = GObject.registerClass(