[gnome-shell/gbsneto/pagination: 6/8] appDisplay: Allow a slighly bigger area for drag overshoot

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

commit 68203e7091359c5886788b74c85b763364c1fa34
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri May 22 14:07:10 2020 -0300

    appDisplay: Allow a slighly bigger area for drag overshoot
    
    Now that we don't have the Frequent tab anymore, and subsequently
    the buttons to switch tabs, the app grid fill all the way to the
    bottom, leaving no room for drag overshoot.
    
    Add a 20px (i.e. OVERSHOOT_THRESHOLD) area at the bottom of the
    grid where dragging actually scrolls to the next page.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1271

 js/ui/appDisplay.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index 98b2e9cf4d..2ada45406c 100644
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -774,7 +774,7 @@ class AppDisplay extends BaseAppView {
     _handleDragOvershoot(dragEvent) {
         let [, gridY] = this.get_transformed_position();
         let [, gridHeight] = this.get_transformed_size();
-        let gridBottom = gridY + gridHeight;
+        const gridBottom = gridY + gridHeight - OVERSHOOT_THRESHOLD;
 
         // Already animating
         if (this._adjustment.get_transition('value') !== null)