[gnome-shell/wip/carlosg/touch-mode] keyboard: Only enable automatically if ClutterSeat::touch-mode is enabled

[Carlos Garnacho <carlosg src gnome org>]

commit 77e741bc95536f23f83ad9813615a19465a1f7b5
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon Feb 10 20:03:30 2020 +0100

    keyboard: Only enable automatically if ClutterSeat::touch-mode is enabled
    
    This defers the policy on backends about whether it makes sense to show
    the OSK.
    
    Closes: https://gitlab.gnome.org/GNOME/gnome-shell/issues/872

 js/ui/keyboard.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
---
diff --git a/js/ui/keyboard.js b/js/ui/keyboard.js
index 875cb702f7..868a4b3d36 100644
--- a/js/ui/keyboard.js
+++ b/js/ui/keyboard.js
@@ -1102,6 +1102,9 @@ var KeyboardManager = class KeyBoardManager {
         this._a11yApplicationsSettings = new Gio.Settings({ schema_id: A11Y_APPLICATIONS_SCHEMA });
         this._a11yApplicationsSettings.connect('changed', this._syncEnabled.bind(this));
 
+        this._seat = Clutter.get_default_backend().get_default_seat();
+        this._seat.connect('notify::touch-mode', this._syncEnabled.bind(this));
+
         this._lastDevice = null;
         Meta.get_backend().connect('last-device-changed', (backend, device) => {
             if (device.get_device_name().indexOf('XTEST') < 0) {
@@ -1122,7 +1125,9 @@ var KeyboardManager = class KeyBoardManager {
 
     _syncEnabled() {
         let enableKeyboard = this._a11yApplicationsSettings.get_boolean(SHOW_KEYBOARD);
-        let enabled = enableKeyboard || this._lastDeviceIsTouchscreen();
+        let autoEnabled = this._seat.get_touch_mode() && this._lastDeviceIsTouchscreen();
+        let enabled = enableKeyboard || autoEnabled;
+
         if (!enabled && !this._keyboard)
             return;