File gnome-shell-864872-unlock-by-mouse-motion.patch of Package gnome-shell.19696

diff --git a/js/ui/screenShield.js b/js/ui/screenShield.js
index 7b154f2..ff7315d 100644
--- a/js/ui/screenShield.js
+++ b/js/ui/screenShield.js
@@ -431,6 +431,8 @@ var ScreenShield = class {
         this.actor = Main.layoutManager.screenShieldGroup;
 
         this._lockScreenState = MessageTray.State.HIDDEN;
+        this._last_x = -1;
+        this._last_y = -1;
         this._lockScreenGroup = new St.Widget({
             x_expand: true,
             y_expand: true,
@@ -441,6 +443,8 @@ var ScreenShield = class {
         });
         this._lockScreenGroup.connect('key-press-event',
                                       this._onLockScreenKeyPress.bind(this));
+        this._lockScreenGroup.connect('motion-event',
+                                      this._onLockScreenMotion.bind(this));
         this._lockScreenGroup.connect('scroll-event',
                                       this._onLockScreenScroll.bind(this));
         Main.ctrlAltTabManager.addGroup(this._lockScreenGroup, _("Lock"), 'changes-prevent-symbolic');
@@ -720,6 +724,25 @@ var ScreenShield = class {
         return Clutter.EVENT_STOP;
     }
 
+    _onLockScreenMotion(actor, event) {
+        if (this._lockScreenState != MessageTray.State.SHOWN)
+            return false;
+        let [X, Y] = event.get_coords();
+
+        if (this._last_x == -1)
+            this._last_x = X;
+        if (this._last_y == -1)
+            this._last_y = Y;
+
+        let min_distance = 10
+        let distance = Math.max(Math.abs(this._last_x - X),
+                                Math.abs(this._last_y - Y));
+
+        if (distance >= min_distance)
+            this._liftShield(true, 0);
+        return true;
+    }
+
     _onLockScreenScroll(actor, event) {
         if (this._lockScreenState != MessageTray.State.SHOWN)
             return Clutter.EVENT_PROPAGATE;
@@ -1036,6 +1059,8 @@ var ScreenShield = class {
             return;
 
         this._ensureLockScreen();
+        this._last_x = -1;
+        this._last_y = -1;
         this._lockDialogGroup.scale_x = 1;
         this._lockDialogGroup.scale_y = 1;