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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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100
js/gdm/loginDialog.js
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@ -55,10 +55,8 @@ var UserListItem = GObject.registerClass({
});
this.user = user;
this._userChangedId = this.user.connect('changed',
this._onUserChanged.bind(this));
this.user.connectObject('changed', this._onUserChanged.bind(this), this);
this.connect('destroy', this._onDestroy.bind(this));
this.connect('notify::hover', () => {
this._setSelected(this.hover);
});
@ -100,10 +98,6 @@ var UserListItem = GObject.registerClass({
this.remove_style_pseudo_class('logged-in');
}
_onDestroy() {
this.user.disconnect(this._userChangedId);
}
vfunc_clicked() {
this.emit('activate');
}
@ -441,8 +435,8 @@ var LoginDialog = GObject.registerClass({
this._updateLogo.bind(this));
this._textureCache = St.TextureCache.get_default();
this._updateLogoTextureId = this._textureCache.connect('texture-file-changed',
this._updateLogoTexture.bind(this));
this._textureCache.connectObject('texture-file-changed',
this._updateLogoTexture.bind(this), this);
this._userSelectionBox = new St.BoxLayout({
style_class: 'login-dialog-user-selection-box',
@ -533,16 +527,16 @@ var LoginDialog = GObject.registerClass({
this._userListLoaded = false;
this._realmManager = new Realmd.Manager();
this._realmSignalId = this._realmManager.connect('login-format-changed',
this._showRealmLoginHint.bind(this));
this._realmManager.connectObject('login-format-changed',
this._showRealmLoginHint.bind(this), this);
LoginManager.getLoginManager().getCurrentSessionProxy(this._gotGreeterSessionProxy.bind(this));
// If the user list is enabled, it should take key focus; make sure the
// screen shield is initialized first to prevent it from stealing the
// focus later
this._startupCompleteId = Main.layoutManager.connect('startup-complete',
this._updateDisableUserList.bind(this));
Main.layoutManager.connectObject('startup-complete',
this._updateDisableUserList.bind(this), this);
}
_getBannerAllocation(dialogBox) {
@ -755,12 +749,11 @@ var LoginDialog = GObject.registerClass({
_ensureUserListLoaded() {
if (!this._userManager.is_loaded) {
this._userManagerLoadedId = this._userManager.connect('notify::is-loaded',
this._userManager.connectObject('notify::is-loaded',
() => {
if (this._userManager.is_loaded) {
this._userManager.disconnectObject(this);
this._loadUserList();
this._userManager.disconnect(this._userManagerLoadedId);
this._userManagerLoadedId = 0;
}
});
} else {
@ -864,12 +857,10 @@ var LoginDialog = GObject.registerClass({
this._greeter = this._gdmClient.get_greeter_sync(null);
this._defaultSessionChangedId = this._greeter.connect('default-session-name-changed',
this._onDefaultSessionChanged.bind(this));
this._sessionOpenedId = this._greeter.connect('session-opened',
this._onSessionOpened.bind(this));
this._timedLoginRequestedId = this._greeter.connect('timed-login-requested',
this._onTimedLoginRequested.bind(this));
this._greeter.connectObject(
'default-session-name-changed', this._onDefaultSessionChanged.bind(this),
'session-opened', this._onSessionOpened.bind(this),
'timed-login-requested', this._onTimedLoginRequested.bind(this), this);
}
}
@ -994,11 +985,10 @@ var LoginDialog = GObject.registerClass({
_gotGreeterSessionProxy(proxy) {
this._greeterSessionProxy = proxy;
this._greeterSessionProxyChangedId =
proxy.connect('g-properties-changed', () => {
if (proxy.Active)
this._loginScreenSessionActivated();
});
proxy.connectObject('g-properties-changed', () => {
if (proxy.Active)
this._loginScreenSessionActivated();
}, this);
}
_startSession(serviceName) {
@ -1214,44 +1204,14 @@ var LoginDialog = GObject.registerClass({
}
_onDestroy() {
if (this._userManagerLoadedId) {
this._userManager.disconnect(this._userManagerLoadedId);
this._userManagerLoadedId = 0;
}
if (this._userAddedId) {
this._userManager.disconnect(this._userAddedId);
this._userAddedId = 0;
}
if (this._userRemovedId) {
this._userManager.disconnect(this._userRemovedId);
this._userRemovedId = 0;
}
if (this._userChangedId) {
this._userManager.disconnect(this._userChangedId);
this._userChangedId = 0;
}
this._textureCache.disconnect(this._updateLogoTextureId);
Main.layoutManager.disconnect(this._startupCompleteId);
if (this._settings) {
this._settings.run_dispose();
this._settings = null;
}
if (this._greeter) {
this._greeter.disconnect(this._defaultSessionChangedId);
this._greeter.disconnect(this._sessionOpenedId);
this._greeter.disconnect(this._timedLoginRequestedId);
this._greeter = null;
}
if (this._greeterSessionProxy) {
this._greeterSessionProxy.disconnect(this._greeterSessionProxyChangedId);
this._greeterSessionProxy = null;
}
if (this._realmManager) {
this._realmManager.disconnect(this._realmSignalId);
this._realmSignalId = 0;
this._realmManager.release();
this._realmManager = null;
}
this._greeter = null;
this._greeterSessionProxy = null;
this._realmManager?.release();
this._realmManager = null;
}
_loadUserList() {
@ -1267,26 +1227,22 @@ var LoginDialog = GObject.registerClass({
this._updateDisableUserList();
this._userAddedId = this._userManager.connect('user-added',
(userManager, user) => {
this._userManager.connectObject(
'user-added', (userManager, user) => {
this._userList.addUser(user);
this._updateDisableUserList();
});
this._userRemovedId = this._userManager.connect('user-removed',
(userManager, user) => {
},
'user-removed', (userManager, user) => {
this._userList.removeUser(user);
this._updateDisableUserList();
});
this._userChangedId = this._userManager.connect('user-changed',
(userManager, user) => {
},
'user-changed', (userManager, user) => {
if (this._userList.containsUser(user) && user.locked)
this._userList.removeUser(user);
else if (!this._userList.containsUser(user) && !user.locked)
this._userList.addUser(user);
this._updateDisableUserList();
});
}, this);
return GLib.SOURCE_REMOVE;
}