[polari] Replace Gtk.Widget.get_toplevel()

[Marge Bot <marge-bot src gnome org>]

commit 1f03ea611ff7c0f7d3fedbd75c76715d9517fb7a
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri Sep 25 19:50:30 2020 +0200

    Replace Gtk.Widget.get_toplevel()
    
    It has been superseded in GTK4, switch to our polyfill.
    
    Part-of: <https://gitlab.gnome.org/GNOME/polari/-/merge_requests/228>

 src/entryArea.js         | 4 ++--
 src/roomList.js          | 8 ++++----
 src/roomStack.js         | 6 +++---
 src/serverRoomManager.js | 4 ++--
 src/userList.js          | 6 +++---
 5 files changed, 14 insertions(+), 14 deletions(-)
---
diff --git a/src/entryArea.js b/src/entryArea.js
index 840ef55a..17629849 100644
--- a/src/entryArea.js
+++ b/src/entryArea.js
@@ -175,7 +175,7 @@ export default GObject.registerClass({
         this.connect('notify::sensitive', this._onSensitiveChanged.bind(this));
         this.connect('realize', () => {
             this._toplevelKeyController = new Gtk.EventControllerKey({
-                widget: this.get_toplevel(),
+                widget: this.get_root(),
                 propagation_phase: Gtk.PropagationPhase.CAPTURE,
             });
             this._toplevelKeyController.connect('key-pressed',
@@ -303,7 +303,7 @@ export default GObject.registerClass({
     }
 
     _canFocusChatEntry() {
-        let toplevelFocus = this._chatEntry.get_toplevel().get_focus();
+        const toplevelFocus = this._chatEntry.get_root().get_focus();
         return this.sensitive &&
                this._chatEntry.get_mapped() &&
                !this._chatEntry['has-focus'] &&
diff --git a/src/roomList.js b/src/roomList.js
index 36ebdb50..7f25f971 100644
--- a/src/roomList.js
+++ b/src/roomList.js
@@ -615,7 +615,7 @@ class RoomList extends Gtk.ListBox {
     vfunc_realize() {
         super.vfunc_realize();
 
-        let toplevel = this.get_toplevel();
+        const toplevel = this.get_root();
         toplevel.connect('notify::active-room',
             this._activeRoomChanged.bind(this));
         this._activeRoomChanged();
@@ -669,7 +669,7 @@ class RoomList extends Gtk.ListBox {
         if (this._roomManager.roomCount === 0)
             return;
 
-        let toplevel = this.get_toplevel();
+        const toplevel = this.get_root();
         let current = this._roomRows.get(toplevel.active_room.id);
 
         if (current !== row)
@@ -760,7 +760,7 @@ class RoomList extends Gtk.ListBox {
     }
 
     _activeRoomChanged() {
-        let room = this.get_toplevel().active_room;
+        const room = this.get_root().active_room;
         if (!room)
             return;
         let row = this._roomRows.get(room.id);
@@ -773,7 +773,7 @@ class RoomList extends Gtk.ListBox {
     }
 
     on_row_selected(row) {
-        this.get_toplevel().active_room = row ? row.room : null;
+        this.get_root().active_room = row ? row.room : null;
         if (row)
             row.selected();
     }
diff --git a/src/roomStack.js b/src/roomStack.js
index 54c23ca5..43eebdba 100644
--- a/src/roomStack.js
+++ b/src/roomStack.js
@@ -50,7 +50,7 @@ export default GObject.registerClass({
     vfunc_realize() {
         super.vfunc_realize();
 
-        let toplevel = this.get_toplevel();
+        const toplevel = this.get_root();
 
         toplevel.connect('notify::active-room',
             this._activeRoomChanged.bind(this));
@@ -105,12 +105,12 @@ export default GObject.registerClass({
     }
 
     _activeRoomChanged() {
-        let room = this.get_toplevel().active_room;
+        const room = this.get_root().active_room;
         this.set_visible_child_name(room ? room.id : 'placeholder');
     }
 
     _updateSensitivity() {
-        let room = this.get_toplevel().active_room;
+        const room = this.get_root().active_room;
         if (!room)
             return;
         let sensitive = room && room.channel;
diff --git a/src/serverRoomManager.js b/src/serverRoomManager.js
index a8dd37be..005d322e 100644
--- a/src/serverRoomManager.js
+++ b/src/serverRoomManager.js
@@ -160,8 +160,8 @@ export const ServerRoomList = GObject.registerClass({
         this._filterEntry.connect('stop-search', () => {
             if (this._filterEntry.get_text().length > 0)
                 this._filterEntry.set_text('');
-            else if (this.get_toplevel() instanceof Gtk.Dialog)
-                this.get_toplevel().response(Gtk.ResponseType.CANCEL);
+            else if (this.get_root() instanceof Gtk.Dialog)
+                this.get_root().response(Gtk.ResponseType.CANCEL);
         });
         this._filterEntry.connect('activate', () => {
             if (this._filterEntry.text.trim().length === 0)
diff --git a/src/userList.js b/src/userList.js
index ef34f2c6..d35fe886 100644
--- a/src/userList.js
+++ b/src/userList.js
@@ -32,7 +32,7 @@ class UserListPopover extends Gtk.Popover {
     vfunc_realize() {
         super.vfunc_realize();
 
-        let toplevel = this.get_toplevel();
+        const toplevel = this.get_root();
         toplevel.connect('notify::active-room',
             this._activeRoomChanged.bind(this));
         toplevel.connect('notify::view-height',
@@ -74,7 +74,7 @@ class UserListPopover extends Gtk.Popover {
         if (!this.get_mapped())
             return;
 
-        let viewHeight = this.get_toplevel().view_height;
+        const viewHeight = this.get_root().view_height;
         let [popoverHeight] = this.get_preferred_height();
         let [userListHeight] = this._userList.get_preferred_height();
         let chromeHeight = popoverHeight - userListHeight;
@@ -85,7 +85,7 @@ class UserListPopover extends Gtk.Popover {
         if (this._userList)
             return;
 
-        let room = this.get_toplevel().active_room;
+        const room = this.get_root().active_room;
         if (!room || room.type !== Tp.HandleType.ROOM)
             return;