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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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30
js/ui/windowAttentionHandler.js
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@ -9,10 +9,10 @@ const MessageTray = imports.ui.messageTray;
var WindowAttentionHandler = class {
constructor() {
this._tracker = Shell.WindowTracker.get_default();
this._windowDemandsAttentionId = global.display.connect('window-demands-attention',
this._onWindowDemandsAttention.bind(this));
this._windowMarkedUrgentId = global.display.connect('window-marked-urgent',
this._onWindowDemandsAttention.bind(this));
global.display.connectObject(
'window-demands-attention', this._onWindowDemandsAttention.bind(this),
'window-marked-urgent', this._onWindowDemandsAttention.bind(this),
this);
}
_getTitleAndBanner(app, window) {
@ -47,10 +47,10 @@ var WindowAttentionHandler = class {
source.showNotification(notification);
source.signalIDs.push(window.connect('notify::title', () => {
window.connectObject('notify::title', () => {
[title, banner] = this._getTitleAndBanner(app, window);
notification.update(title, banner);
}));
}, source);
}
};
@ -62,15 +62,11 @@ class WindowAttentionSource extends MessageTray.Source {
super._init(app.get_name());
this.signalIDs = [];
this.signalIDs.push(this._window.connect('notify::demands-attention',
this._sync.bind(this)));
this.signalIDs.push(this._window.connect('notify::urgent',
this._sync.bind(this)));
this.signalIDs.push(this._window.connect('focus',
() => this.destroy()));
this.signalIDs.push(this._window.connect('unmanaged',
() => this.destroy()));
this._window.connectObject(
'notify::demands-attention', this._sync.bind(this),
'notify::urgent', this._sync.bind(this),
'focus', () => this.destroy(),
'unmanaged', () => this.destroy(), this);
}
_sync() {
@ -93,9 +89,7 @@ class WindowAttentionSource extends MessageTray.Source {
}
destroy(params) {
for (let i = 0; i < this.signalIDs.length; i++)
this._window.disconnect(this.signalIDs[i]);
this.signalIDs = [];
this._window.disconnectObject(this);
super.destroy(params);
}