workspacesView: Add API to hide workspaces without destroying

This will be used by the next commit to hide workspaces when ViewSelector
switches to the search page, without destroying the workspaces so their
state is preserved.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1593>

diff --git a/js/ui/workspacesView.js b/js/ui/workspacesView.js
index 99a1e65973d8cc55a7b2010e2550cb523efa6563..9e1dccb0f711cc133ec99ecb364cccd6fcbd15f2 100644 (file)
--- a/js/ui/workspacesView.js
+++ b/js/ui/workspacesView.js
@@ -404,6 +404,7 @@ class WorkspacesDisplay extends St.Widget {
             this._syncWorkspacesActualGeometry();
         });
 
+        this._primaryVisible = true;
         this._primaryIndex = Main.layoutManager.primaryIndex;
         this._workspacesViews = [];
 
@@ -570,6 +571,18 @@ class WorkspacesDisplay extends St.Widget {
         return this._getPrimaryView().navigate_focus(from, direction, false);
     }
 
+    setPrimaryWorkspaceVisible(visible) {
+        if (this._primaryVisible === visible)
+            return;
+
+        this._primaryVisible = visible;
+
+        const primaryIndex = Main.layoutManager.primaryIndex;
+        const primaryWorkspace = this._workspacesViews[primaryIndex];
+        if (primaryWorkspace)
+            primaryWorkspace.visible = visible;
+    }
+
     animateToOverview(fadeOnPrimary) {
         this.show();
         this._updateWorkspacesViews();
@@ -672,6 +685,8 @@ class WorkspacesDisplay extends St.Widget {
             this._workspacesViews.push(view);
             Main.layoutManager.overviewGroup.add_actor(view);
         }
+
+        this._workspacesViews[this._primaryIndex].visible = this._primaryVisible;
     }
 
     _getMonitorIndexForEvent(event) {