Wallpaper: replace deprecated FileChooserNative with FileDialog (#398)

* Wallpaper: replace deprecated FileChooserNative with FileDialog

* Update Wallpaper.vala

README.md

@@ -10,7 +10,7 @@ You'll need the following dependencies:
 * libswitchboard-3-dev
 * libgee-0.8-dev
 * libgexiv2-dev
-* libgtk-4-dev (>=4.8)
+* libgtk-4-dev (>=4.10)
 * libgranite-7-dev (>=7.5.0)
 * meson
 * valac

meson.build

@@ -21,7 +21,7 @@ gio_dep = dependency('gio-2.0')
 glib_dep = dependency('glib-2.0')
 gobject_dep = dependency('gobject-2.0')
 granite_dep = dependency('granite-7', version: '>=7.5.0')
-gtk_dep = dependency('gtk4', version: '>=4.8')
+gtk_dep = dependency('gtk4', version: '>=4.10')
 hdy_dep = dependency ('libadwaita-1')
 posix_dep = meson.get_compiler('vala').find_library('posix')
 

src/Views/Wallpaper.vala

@@ -148,20 +148,18 @@ public class PantheonShell.Wallpaper : Gtk.Box {
         var filter = new Gtk.FileFilter ();
         filter.add_mime_type ("image/*");
 
-        var chooser = new Gtk.FileChooserNative (
-            _("Import Photo"), null, Gtk.FileChooserAction.OPEN,
-            _("Import"),
-            _("Cancel")
-        );
-        chooser.filter = filter;
-        chooser.select_multiple = true;
-
-        chooser.show ();
-        chooser.response.connect ((response) => {
-            if (response == Gtk.ResponseType.ACCEPT) {
-                var files = chooser.get_files ();
-                for (var i = 0; i <= files.get_n_items (); i++) {
-                    var file = (File) files.get_item (i);
+        var file_dialog = new Gtk.FileDialog () {
+            accept_label = _("Import"),
+            default_filter = filter,
+            modal = true,
+            title = _("Import Photos")
+        };
+
+        file_dialog.open_multiple.begin ((Gtk.Window) get_root (), null, (obj, res) => {
+            var list_model = file_dialog.open_multiple.end (res);
+            if (list_model != null) {
+                for (var i = 0; i <= list_model.get_n_items (); i++) {
+                    var file = (File) list_model.get_item (i);
 
                     if (WallpaperOperation.get_is_file_in_bg_dir (file)) {
                         continue;
@@ -176,7 +174,6 @@ public class PantheonShell.Wallpaper : Gtk.Box {
                     add_wallpaper_from_file (file, local_uri);
                 }
             }
-            chooser.destroy ();
         });
     }