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workspaceThumbnails: Disconnect signals on destroy

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The minimap is currently created once when populating the overview,
and kept around until the end of the session. That will change when
we start to also show it on secondary monitors, so do proper clean
up when destroyed.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1735>
This commit is contained in:
Florian Müllner 2021-02-20 12:44:01 +01:00 committed by Marge Bot
parent 767ee518f5
commit 945e947a54
1 changed files with 70 additions and 40 deletions
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74
js/ui/workspaceThumbnail.js
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@ -654,8 +654,8 @@ var ThumbnailsBox = GObject.registerClass({
this._targetScale = 0;
this._scale = 0;
this._expandFraction = 1;
this._updateStateId = 0;
this._pendingScaleUpdate = false;
this._stateUpdateQueued = false;
this._animatingIndicator = false;
this._shouldShow = true;
@ -666,52 +666,55 @@ var ThumbnailsBox = GObject.registerClass({
this._thumbnails = [];
this._overviewSignals = [
Main.overview.connect('showing',
this._createThumbnails.bind(this));
() => this._createThumbnails()),
Main.overview.connect('hidden',
this._destroyThumbnails.bind(this));
() => this._destroyThumbnails()),
Main.overview.connect('item-drag-begin',
this._onDragBegin.bind(this));
() => this._onDragBegin()),
Main.overview.connect('item-drag-end',
this._onDragEnd.bind(this));
() => this._onDragEnd()),
Main.overview.connect('item-drag-cancelled',
this._onDragCancelled.bind(this));
() => this._onDragCancelled()),
Main.overview.connect('window-drag-begin',
this._onDragBegin.bind(this));
() => this._onDragBegin()),
Main.overview.connect('window-drag-end',
this._onDragEnd.bind(this));
() => this._onDragEnd()),
Main.overview.connect('window-drag-cancelled',
this._onDragCancelled.bind(this));
() => this._onDragCancelled()),
];
this._settings = new Gio.Settings({ schema_id: MUTTER_SCHEMA });
this._settings.connect('changed::dynamic-workspaces',
() => this._updateShouldShow());
this._monitorsChangedId =
Main.layoutManager.connect('monitors-changed', () => {
this._destroyThumbnails();
if (Main.overview.visible)
this._createThumbnails();
});
global.display.connect('workareas-changed',
this._updatePorthole.bind(this));
this._workareasChangedId = global.display.connect('workareas-changed',
() => this._updatePorthole());
this.connect('notify::visible', () => {
if (!this.visible)
this._queueUpdateStates();
});
this.connect('destroy', () => this._onDestroy());
this._switchWorkspaceNotifyId = 0;
this._nWorkspacesNotifyId = 0;
this._syncStackingId = 0;
this._workareasChangedId = 0;
this._scrollAdjustment = scrollAdjustment;
this._scrollAdjustment.connect('notify::value', adj => {
let workspaceManager = global.workspace_manager;
let activeIndex = workspaceManager.get_active_workspace_index();
this._scrollValueId = this._scrollAdjustment.connect('notify::value',
adj => {
const { workspaceManager } = global;
const activeIndex = workspaceManager.get_active_workspace_index();
this._animatingIndicator = adj.value !== activeIndex;
@ -722,6 +725,29 @@ var ThumbnailsBox = GObject.registerClass({
});
}
_onDestroy() {
this._unqueueUpdateStates();
if (this._scrollValueId)
this._scrollAdjustment.disconnect(this._scrollValueId);
this._scrollValueId = 0;
if (this._monitorsChangedId)
Main.layoutManager.disconnect(this._monitorsChangedId);
this._monitorsChangedId = 0;
if (this._workareasChangedId)
global.display.disconnect(this._workareasChangedId);
this._workareasChangedId = 0;
this._overviewSignals.forEach(id => Main.overview.disconnect(id));
this._overviewSignals = [];
if (this._settings)
this._settings.run_dispose();
this._settings = null;
}
_updateShouldShow() {
const { nWorkspaces } = global.workspace_manager;
const shouldShow = this._settings.get_boolean('dynamic-workspaces')
@ -979,7 +1005,7 @@ var ThumbnailsBox = GObject.registerClass({
this._targetScale = 0;
this._scale = 0;
this._pendingScaleUpdate = false;
this._stateUpdateQueued = false;
this._unqueueUpdateStates();
this._stateCounts = {};
for (let key in ThumbnailState)
@ -1128,7 +1154,7 @@ var ThumbnailsBox = GObject.registerClass({
}
_updateStates() {
this._stateUpdateQueued = false;
this._updateStateId = 0;
// If we are animating the indicator, wait
if (this._animatingIndicator)
@ -1216,13 +1242,17 @@ var ThumbnailsBox = GObject.registerClass({
}
_queueUpdateStates() {
if (this._stateUpdateQueued)
if (this._updateStateId > 0)
return;
Meta.later_add(Meta.LaterType.BEFORE_REDRAW,
this._updateStates.bind(this));
this._updateStateId = Meta.later_add(
Meta.LaterType.BEFORE_REDRAW, () => this._updateStates());
}
this._stateUpdateQueued = true;
_unqueueUpdateStates() {
if (this._updateStateId)
Meta.later_remove(this._updateStateId);
this._updateStateId = 0;
}
vfunc_get_preferred_height(forWidth) {