[gnome-shell/wip/snwh/appgrid-regression-fixes] workspacesView: Disable workspace switching while in search

[Sam Hewitt <snwh src gnome org>]

commit e58f885e741835a0ef6b92f6cede6a965756c896
Author: Sebastian Keller <skeller gnome org>
Date:   Sun Feb 20 16:53:43 2022 +0100

    workspacesView: Disable workspace switching while in search
    
    WorkspacesDisplay connects to key-press-event on the stage to switch
    workspaces when page up or down is pressed and nothing else intercepts
    these keys. This means that it is still possible to switch workspaces
    while they are hidden behind the search.
    
    So only allow these keybinding while the WorkspacesDisplay is reactive
    which gets updated by ControlsManager depending on whether there is an
    active search or not. Also set it as initially reactive, because
    otherwise the keybindings would only work after performing an initial
    search.
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2204>

 js/ui/workspacesView.js | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/js/ui/workspacesView.js b/js/ui/workspacesView.js
index 6dad2df3f5..0acc3e5620 100644
--- a/js/ui/workspacesView.js
+++ b/js/ui/workspacesView.js
@@ -833,6 +833,7 @@ class WorkspacesDisplay extends St.Widget {
     _init(controls, scrollAdjustment, overviewAdjustment) {
         super._init({
             layout_manager: new Clutter.BinLayout(),
+            reactive: true,
         });
 
         this._controls = controls;
@@ -1150,6 +1151,9 @@ class WorkspacesDisplay extends St.Widget {
         if (this._overviewAdjustment.value !== ControlsState.WINDOW_PICKER)
             return Clutter.EVENT_PROPAGATE;
 
+        if (!this.reactive)
+            return Clutter.EVENT_PROPAGATE;
+
         const { workspaceManager } = global;
         const vertical = workspaceManager.layout_rows === -1;
         const rtl = this.get_text_direction() === Clutter.TextDirection.RTL;