[gnome-shell/gbsneto/pagination: 4/4] appDisplay: Compare indicator and grid pages

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit f696f04ce5f21bb5cbdf03402ffa3265445c9576
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon May 25 16:52:43 2020 -0300

    appDisplay: Compare indicator and grid pages
    
    In the past, the icon grid would update the number of pages
    during the call to adaptToSize(). However, after the new grid
    layout landed, the number of pages is updated by the time an
    item is added or removed.
    
    Instead of comparing the old and new number of pages in the
    icon grid, compare the pages shown by the indicator, and the
    grid pages.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1271

 js/ui/appDisplay.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index af8804d1ec..be5ef2261f 100644
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -465,13 +465,12 @@ var BaseAppView = GObject.registerClass({
 
         const availWidth = box.get_width();
         const availHeight = box.get_height();
-        const oldNPages = this._grid.nPages;
 
         this._grid.adaptToSize(availWidth, availHeight);
 
         if (this._availWidth !== availWidth ||
             this._availHeight !== availHeight ||
-            oldNPages !== this._grid.nPages) {
+            this._pageIndicators.nPages !== this._grid.nPages) {
             Meta.later_add(Meta.LaterType.BEFORE_REDRAW, () => {
                 this._adjustment.value = 0;
                 this._grid.currentPage = 0;