Flatpak: use the OpenURI portal to launch external applications

Author: Marukesu

README.md

@@ -15,6 +15,7 @@ You'll need the following dependencies:
 * libgtkspell3-3-dev
 * libgranite-dev >= 5.2.0
 * libhandy-1-dev >= 0.90.0
+* libportal-dev
 * libpeas-dev
 * libsoup2.4-dev
 * libvala-0.34-dev (or higher)

io.elementary.code.yml

@@ -119,6 +119,15 @@ modules:
         url: https://github.com/universal-ctags/ctags.git
         tag: p5.9.20201101.0
 
+  - name: libportal
+    buildsystem: meson
+    config-opts:
+     - '-Dgtk_doc=false'
+    sources:
+      - type: git
+        url: https://github.com/flatpak/libportal.git
+        tag: '0.4'
+
   - name: code
     buildsystem: meson
     config-opts:

meson.build

@@ -31,6 +31,7 @@ gee_dep = dependency('gee-0.8', version: '>=0.8.5')
 gtk_dep = dependency('gtk+-3.0', version: '>=3.6.0')
 granite_dep = dependency('granite', version: '>=6.0.0')
 handy_dep = dependency('libhandy-1', version: '>=0.90.0')
+libportal_dep = dependency ('libportal')
 gtksourceview_dep = dependency('gtksourceview-4')
 peas_dep = dependency('libpeas-1.0')
 peasgtk_dep = dependency('libpeas-gtk-1.0')
@@ -51,6 +52,7 @@ dependencies = [
     gtk_dep,
     granite_dep,
     handy_dep,
+    libportal_dep,
     gtksourceview_dep,
     peas_dep,
     peasgtk_dep,

src/Application.vala

@@ -25,11 +25,13 @@ namespace Scratch {
     public GLib.Settings settings;
     public GLib.Settings service_settings;
     public GLib.Settings privacy_settings;
+    public bool in_sandbox;
 
     public class Application : Gtk.Application {
         public string app_cmd_name { get { return _app_cmd_name; } }
         public string data_home_folder_unsaved { get { return _data_home_folder_unsaved; } }
         public string default_font { get; set; }
+        public Xdp.Portal portal;
         private static string _app_cmd_name;
         private static string _data_home_folder_unsaved;
         private static bool create_new_tab = false;
@@ -67,6 +69,11 @@ namespace Scratch {
             settings = new GLib.Settings (Constants.PROJECT_NAME + ".settings");
             service_settings = new GLib.Settings (Constants.PROJECT_NAME + ".services");
             privacy_settings = new GLib.Settings ("org.gnome.desktop.privacy");
+            in_sandbox = FileUtils.test ("/.flatpak-info", FileTest.EXISTS);
+
+            if (in_sandbox) {
+                portal = new Xdp.Portal ();
+            }
         }
 
         public override int handle_local_options (VariantDict options) {

src/FolderManager/FileItem.vala

@@ -36,18 +36,24 @@ namespace Scratch.FolderManager {
                 new_window.open_document (doc, true);
             });
 
-            var files_appinfo = AppInfo.get_default_for_type ("inode/directory", true);
+            Gtk.MenuItem files_menuitem = null;
 
-            var files_item_icon = new Gtk.Image.from_gicon (files_appinfo.get_icon (), Gtk.IconSize.MENU);
-            files_item_icon.pixel_size = 16;
+            if (in_sandbox) {
+                files_menuitem = new Gtk.MenuItem.with_label (_("File Manager"));
+                files_menuitem.activate.connect (() => open_on_file_manager (file));
+            } else {
+                var files_appinfo = AppInfo.get_default_for_type ("inode/directory", true);
 
-            var files_item_grid = new Gtk.Grid ();
-            files_item_grid.add (files_item_icon);
-            files_item_grid.add (new Gtk.Label (files_appinfo.get_name ()));
+                var files_item_icon = new Gtk.Image.from_gicon (files_appinfo.get_icon (), Gtk.IconSize.MENU);
+                files_item_icon.pixel_size = 16;
 
-            var files_menuitem = new Gtk.MenuItem ();
-            files_menuitem.add (files_item_grid);
-            files_menuitem.activate.connect (() => launch_app_with_file (files_appinfo, file.file));
+                var files_item_grid = new Gtk.Grid ();
+                files_item_grid.add (files_item_icon);
+                files_item_grid.add (new Gtk.Label (files_appinfo.get_name ()));
+
+                files_menuitem = new Gtk.MenuItem ();
+                files_menuitem.add (files_item_grid);
+            }
 
             var other_menuitem = new Gtk.MenuItem.with_label (_("Other Application…"));
             other_menuitem.activate.connect (() => show_app_chooser (file));
@@ -135,5 +141,18 @@ namespace Scratch.FolderManager {
 
             return menu;
         }
+
+        public void open_on_file_manager (File file) {
+            var portal = ((Scratch.Application) GLib.Application.get_default ()).portal;
+            var parent = new Xdp.Gtk3.Parent (((Gtk.Application) GLib.Application.get_default ()).active_window);
+
+            portal.open_directory.begin (parent, file.file.get_uri (), Xdp.OpenUriFlags.NONE, null, (obj, res) => {
+                try {
+                    portal.open_directory.end (res);
+                } catch (Error e) {
+                    warning (e.message);
+                }
+            });
+        }
     }
 }

src/FolderManager/FolderItem.vala

@@ -109,7 +109,7 @@ namespace Scratch.FolderManager {
             };
 
             var menu = new Gtk.Menu ();
-            menu.append (create_submenu_for_open_in (info, file_type));
+            menu.append (create_open_in_menuitem (info, file_type));
             menu.append (contractor_item);
             menu.append (new Gtk.SeparatorMenuItem ());
             menu.append (create_submenu_for_new ());
@@ -122,49 +122,56 @@ namespace Scratch.FolderManager {
             return menu;
         }
 
-        protected Gtk.MenuItem create_submenu_for_open_in (GLib.FileInfo? info, string? file_type) {
-            var other_menuitem = new Gtk.MenuItem.with_label (_("Other Application…"));
-            other_menuitem.activate.connect (() => show_app_chooser (file));
+        protected Gtk.MenuItem create_open_in_menuitem (GLib.FileInfo? info, string? file_type) {
+            Gtk.MenuItem open_in_item = null;
 
-            file_type = file_type ?? "inode/directory";
+            if (in_sandbox) {
+                open_in_item = new Gtk.MenuItem.with_label (_("Open In…"));
+                open_in_item.activate.connect (() => show_app_chooser (file));
+            } else {
+                var other_menuitem = new Gtk.MenuItem.with_label (_("Other Application…"));
+                other_menuitem.activate.connect (() => show_app_chooser (file));
 
-            var open_in_menu = new Gtk.Menu ();
+                file_type = file_type ?? "inode/directory";
 
-            if (info != null) {
-                List<AppInfo> external_apps = GLib.AppInfo.get_all_for_type (file_type);
+                var open_in_menu = new Gtk.Menu ();
 
-                string this_id = GLib.Application.get_default ().application_id + ".desktop";
+                if (info != null) {
+                    List<AppInfo> external_apps = GLib.AppInfo.get_all_for_type (file_type);
 
-                foreach (AppInfo app_info in external_apps) {
-                    if (app_info.get_id () == this_id) {
-                        continue;
-                    }
+                    string this_id = GLib.Application.get_default ().application_id + ".desktop";
+
+                    foreach (AppInfo app_info in external_apps) {
+                        if (app_info.get_id () == this_id) {
+                            continue;
+                        }
 
-                    var menuitem_icon = new Gtk.Image.from_gicon (app_info.get_icon (), Gtk.IconSize.MENU);
-                    menuitem_icon.pixel_size = 16;
+                        var menuitem_icon = new Gtk.Image.from_gicon (app_info.get_icon (), Gtk.IconSize.MENU);
+                        menuitem_icon.pixel_size = 16;
 
-                    var menuitem_grid = new Gtk.Grid ();
-                    menuitem_grid.add (menuitem_icon);
-                    menuitem_grid.add (new Gtk.Label (app_info.get_name ()));
+                        var menuitem_grid = new Gtk.Grid ();
+                        menuitem_grid.add (menuitem_icon);
+                        menuitem_grid.add (new Gtk.Label (app_info.get_name ()));
 
-                    var item_app = new Gtk.MenuItem ();
-                    item_app.add (menuitem_grid);
+                        var item_app = new Gtk.MenuItem ();
+                        item_app.add (menuitem_grid);
 
-                    item_app.activate.connect (() => {
-                        launch_app_with_file (app_info, file.file);
-                    });
-                    open_in_menu.add (item_app);
+                        item_app.activate.connect (() => {
+                            launch_app_with_file (app_info, file.file);
+                        });
+                        open_in_menu.add (item_app);
+                    }
                 }
-            }
 
-            if (open_in_menu.get_children ().length () > 0) {
-                open_in_menu.add (new Gtk.SeparatorMenuItem ());
-            }
+                if (open_in_menu.get_children ().length () > 0) {
+                    open_in_menu.add (new Gtk.SeparatorMenuItem ());
+                }
 
-            open_in_menu.add (other_menuitem);
+                open_in_menu.add (other_menuitem);
 
-            var open_in_item = new Gtk.MenuItem.with_label (_("Open In"));
-            open_in_item.submenu = open_in_menu;
+                open_in_item = new Gtk.MenuItem.with_label (_("Open In"));
+                open_in_item.submenu = open_in_menu;
+            }
 
             return open_in_item;
         }

src/FolderManager/Item.vala

@@ -69,17 +69,30 @@ namespace Scratch.FolderManager {
         }
 
         public void show_app_chooser (File file) {
-            var dialog = new Gtk.AppChooserDialog (new Gtk.Window (), Gtk.DialogFlags.MODAL, file.file);
-            dialog.deletable = false;
-
-            if (dialog.run () == Gtk.ResponseType.OK) {
-                var app_info = dialog.get_app_info ();
-                if (app_info != null) {
-                    launch_app_with_file (app_info, file.file);
+            if (in_sandbox) {
+                var portal = ((Scratch.Application) GLib.Application.get_default ()).portal;
+                var parent = new Xdp.Gtk3.Parent (((Gtk.Application) GLib.Application.get_default ()).active_window);
+
+                portal.open_uri.begin (parent, file.file.get_uri (), Xdp.OpenUriFlags.ASK, null, (obj, res) => {
+                    try {
+                        portal.open_uri.end (res);
+                    } catch (Error e) {
+                        warning (e.message);
+                    }
+                });
+            } else {
+                var dialog = new Gtk.AppChooserDialog (new Gtk.Window (), Gtk.DialogFlags.MODAL, file.file);
+                dialog.deletable = false;
+
+                if (dialog.run () == Gtk.ResponseType.OK) {
+                    var app_info = dialog.get_app_info ();
+                    if (app_info != null) {
+                        launch_app_with_file (app_info, file.file);
+                    }
                 }
-            }
 
-            dialog.destroy ();
+                dialog.destroy ();
+            }
         }
 
         public void launch_app_with_file (AppInfo app_info, GLib.File file) {

src/FolderManager/ProjectFolderItem.vala

@@ -131,7 +131,7 @@ namespace Scratch.FolderManager {
             }
 
             var menu = new Gtk.Menu ();
-            menu.append (create_submenu_for_open_in (info, file_type));
+            menu.append (create_open_in_menuitem (info, file_type));
             menu.append (new Gtk.SeparatorMenuItem ());
             menu.append (create_submenu_for_new ());