[gnome-shell-extensions/ws-thumb-fixes: 12/13] window-list: Use overlap to determine preview visibility

[Florian Müllner <fmuellner src gnome org>]

commit 081244365d224e8b0e4b4bad0a91fba982c1a1ca
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Oct 21 20:40:56 2020 +0200

    window-list: Use overlap to determine preview visibility

 extensions/window-list/workspaceIndicator.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/extensions/window-list/workspaceIndicator.js b/extensions/window-list/workspaceIndicator.js
index 3dbfb0c..721edc0 100644
--- a/extensions/window-list/workspaceIndicator.js
+++ b/extensions/window-list/workspaceIndicator.js
@@ -61,8 +61,9 @@ class WindowPreview extends St.Button {
     }
 
     _updateVisible() {
-        let monitor = Main.layoutManager.findIndexForActor(this);
-        this.visible = monitor === this._window.get_monitor() &&
+        const monitor = Main.layoutManager.findIndexForActor(this);
+        const workArea = Main.layoutManager.getWorkAreaForMonitor(monitor);
+        this.visible = this._window.get_frame_rect().overlap(workArea) &&
             this._window.window_type !== Meta.WindowType.DESKTOP &&
             this._window.showing_on_its_workspace();
     }