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allView, frequentView: Only create icons when necessary

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The views (AllView and FrequentView) build a list of all applications
they contain. BaseView then diffs between what's currently added, and
what needs to be added, and removed.

This approach has a problem though: creating an AppIcon or a FolderIcon
connects to various signals, and we confuse the garbage collector.

When building the list of applications, instead of always creating new
icons, try to use already existing icons first.

Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1610
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1694
This commit is contained in:
Georges Basile Stavracas Neto 2019-11-21 17:57:17 -03:00
parent a85cddada0
commit d08cd1f523
1 changed files with 14 additions and 5 deletions
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19
js/ui/appDisplay.js
View File

@ -463,10 +463,15 @@ var AllView = class AllView extends BaseAppView {
let favoritesWritable = global.settings.is_writable('favorite-apps');
apps.forEach(appId => {
let app = appSys.lookup_app(appId);
let icon = this._items[appId];
if (!icon) {
let app = appSys.lookup_app(appId);
icon = new AppIcon(app, {
isDraggable: favoritesWritable,
});
}
let icon = new AppIcon(app,
{ isDraggable: favoritesWritable });
newApps.push(icon);
});
@ -918,8 +923,12 @@ var FrequentView = class FrequentView extends BaseAppView {
for (let i = 0; i < mostUsed.length; i++) {
if (!mostUsed[i].get_app_info().should_show())
continue;
let appIcon = new AppIcon(mostUsed[i],
{ isDraggable: favoritesWritable });
let appIcon = this._items[mostUsed[i].get_id()];
if (!appIcon) {
appIcon = new AppIcon(mostUsed[i], {
isDraggable: favoritesWritable,
});
}
apps.push(appIcon);
}