Method trackAppChanges

src/layout/msWorkspace/msWindow.ts:328–366

()

    }

    private trackAppChanges() {
        assert(
            this.appSignalId === undefined,
            'Expected the signalId to be undefined'
        );
        this.appSignalId = this.app.connect('windows-changed', () => {
            const lifecycleState = this.lifecycleState;
            if (lifecycleState.type === 'window') {
                const metaWindowList = this.app.get_windows();
                if (
                    lifecycleState.metaWindow &&
                    !metaWindowList.includes(lifecycleState.metaWindow)
                ) {
                    // We have to wait next cycle to get the proper app
                    GLib.idle_add(GLib.PRIORITY_DEFAULT_IDLE, () => {
                        // Guard to ensure the lifecycle state has not changed before the callback was called
                        if (
                            this.lifecycleState == lifecycleState &&
                            lifecycleState.metaWindow
                        ) {
                            const app =
                                Shell.WindowTracker.get_default().get_window_app(
                                    lifecycleState.metaWindow
                                );
                            if (app !== null) {
                                this.app.disconnect(
                                    assertNotNull(this.appSignalId)
                                );
                                this.appSignalId = undefined;
                                this.app = app;
                                this.onAppChanged();
                            }
                        }
                        return GLib.SOURCE_REMOVE;
                    });
                }
            }
        });
    }

    private onAppChanged() {
        const state = this.lifecycleState;