Implement setting dialog & make infinite scroll an option on it

Co-authored-by: Bnyro <bnyro@tutanota.com>

src/components/community_page.rs

@@ -55,8 +55,8 @@ impl SimpleComponent for CommunityPage {
         gtk::ScrolledWindow {
             set_vexpand: false,
             connect_edge_reached[sender] => move |_, pos| {
-                if pos == gtk::PositionType::Bottom {
-                    sender.input(CommunityInput::FetchPosts)
+                if pos == gtk::PositionType::Bottom && settings::get_prefs().infinite_scroll {
+                    sender.input(CommunityInput::FetchPosts);
                 }
             },
 

src/components/posts_page.rs

@@ -7,6 +7,8 @@ use relm4::{factory::FactoryVecDeque, prelude::*};
 
 use crate::api;
 
+use crate::settings::get_prefs;
+
 use super::{
     post_row::PostRow,
     sort_dropdown::{SortDropdown, SortDropdownOutput},
@@ -37,11 +39,10 @@ impl SimpleComponent for PostsPage {
         gtk::ScrolledWindow {
             set_hexpand: true,
             connect_edge_reached[sender] => move |_, pos| {
-                if pos == gtk::PositionType::Bottom {
+                if pos == gtk::PositionType::Bottom && get_prefs().infinite_scroll {
                     sender.input(
-                        PostsPageInput::FetchPosts(
-                            model.posts_type, 
-                            model.posts_order, false))
+                        PostsPageInput::FetchPosts(model.posts_type, model.posts_order, false)
+                    );
                 }
             },
 

src/components/profile_page.rs

@@ -9,9 +9,9 @@ use crate::dialogs::editor::EditorDialog;
 use crate::dialogs::editor::EditorOutput;
 use crate::dialogs::editor::EditorType;
 use crate::settings;
+use crate::util::format_elapsed_time;
 use crate::util::get_web_image_msg;
 use crate::util::markdown_to_pango_markup;
-use crate::util::format_elapsed_time;
 
 use super::comment_row::CommentRow;
 use super::moderates_row::ModeratesRow;

src/dialogs/mod.rs

@@ -1,3 +1,4 @@
 pub mod about;
 pub mod editor;
+pub mod settings;
 pub mod site_info;

src/dialogs/settings.rs

@@ -0,0 +1,81 @@
+use crate::settings::{get_prefs, save_prefs};
+use gtk::prelude::*;
+use relm4::prelude::*;
+
+pub struct Settings {
+    visible: bool,
+}
+
+#[derive(Debug)]
+pub enum SettingsInput {
+    Show,
+    Hide,
+}
+
+#[relm4::component(pub)]
+impl SimpleComponent for Settings {
+    type Init = ();
+    type Input = SettingsInput;
+    type Output = crate::AppMsg;
+
+    view! {
+        dialog = gtk::Dialog {
+            #[watch]
+            set_visible: model.visible,
+            set_modal: true,
+            set_title: Some("Settings"),
+            connect_close_request[sender] => move |_| {
+                sender.input(SettingsInput::Hide);
+                gtk::Inhibit(false)
+            },
+
+            #[wrap(Some)]
+            set_titlebar = &gtk::HeaderBar{
+                set_show_title_buttons: true,
+            },
+
+            gtk::ScrolledWindow {
+                set_size_request: (400, 400),
+
+                gtk::Box {
+                    set_orientation: gtk::Orientation::Vertical,
+                    set_spacing: 5,
+                    set_margin_all: 15,
+
+                    gtk::CheckButton {
+                        set_active: get_prefs().infinite_scroll,
+                        set_margin_all: 12,
+                        set_label: Some("Infinite scroll"),
+                        set_tooltip:"Fetch new content automatically when scrolling down",
+                        connect_toggled => move |checkbox| {
+                            let mut prefs = get_prefs();
+                            prefs.infinite_scroll = checkbox.is_active();
+                            save_prefs(&prefs);
+                        },
+                    },
+                }
+            }
+        }
+    }
+
+    fn init(
+        _init: Self::Init,
+        root: &Self::Root,
+        sender: ComponentSender<Self>,
+    ) -> ComponentParts<Self> {
+        let model = Self { visible: false };
+        let widgets = view_output!();
+        ComponentParts { model, widgets }
+    }
+
+    fn update(&mut self, message: Self::Input, _sender: ComponentSender<Self>) {
+        match message {
+            SettingsInput::Show => {
+                self.visible = true;
+            }
+            SettingsInput::Hide => {
+                self.visible = false;
+            }
+        }
+    }
+}

src/main.rs

@@ -19,6 +19,7 @@ use components::{
 };
 use dialogs::{
     about::AboutDialog,
+    settings::Settings,
     site_info::{SiteInfo, SiteInfoInput},
 };
 use gtk::prelude::*;
@@ -68,6 +69,7 @@ struct App {
     login_page: Controller<LoginPage>,
     accounts_page: Controller<AccountsPage>,
     saved_page: Controller<ProfilePage>,
+    settings_dialog: Controller<Settings>,
     about_dialog: Controller<AboutDialog>,
     site_info: Controller<SiteInfo>,
     logged_in: bool,
@@ -222,6 +224,7 @@ impl SimpleComponent for App {
             "Login" => LoginAction,
             "Profile" => ProfileAction,
             "Site Info" => SiteInfoAction,
+            "Settings" => SettingsAction,
             "About" => AboutAction
         }
     }
@@ -262,6 +265,7 @@ impl SimpleComponent for App {
         let communities_page = CommunitiesPage::builder()
             .launch(())
             .forward(sender.input_sender(), |msg| msg);
+        let settings_dialog = dialogs::settings::Settings::builder().launch(()).detach();
         let about_dialog = AboutDialog::builder()
             .launch(root.toplevel_window().unwrap())
             .detach();
@@ -293,6 +297,7 @@ impl SimpleComponent for App {
             accounts_page,
             message: None,
             about_dialog,
+            settings_dialog,
             saved_page,
             site_info,
             logged_in,
@@ -340,7 +345,6 @@ impl SimpleComponent for App {
             })
         };
         let login_action: RelmAction<LoginAction> = {
-            let sender = sender.clone();
             RelmAction::new_stateless(move |_| {
                 sender.input(AppMsg::UpdateState(AppState::Login));
             })
@@ -351,6 +355,14 @@ impl SimpleComponent for App {
                 sender.emit(SiteInfoInput::Fetch);
             })
         };
+        let settings_action = {
+            let sender = model.settings_dialog.sender().clone();
+            RelmAction::<SettingsAction>::new_stateless(move |_| {
+                sender
+                    .send(dialogs::settings::SettingsInput::Show)
+                    .unwrap_or_default();
+            })
+        };
         let about_action = {
             let sender = model.about_dialog.sender().clone();
             RelmAction::<AboutAction>::new_stateless(move |_| {
@@ -364,6 +376,7 @@ impl SimpleComponent for App {
         group.add_action(profile_action);
         group.add_action(login_action);
         group.add_action(site_info_action);
+        group.add_action(settings_action);
         group.add_action(about_action);
         group.register_for_widget(&widgets.main_window);
 
@@ -493,6 +506,7 @@ relm4::new_stateless_action!(AccountsAction, WindowActionGroup, "accounts");
 relm4::new_stateless_action!(LoginAction, WindowActionGroup, "login");
 relm4::new_stateless_action!(ProfileAction, WindowActionGroup, "profile");
 relm4::new_stateless_action!(SiteInfoAction, WindowActionGroup, "site_info");
+relm4::new_stateless_action!(SettingsAction, WindowActionGroup, "settings");
 relm4::new_stateless_action!(AboutAction, WindowActionGroup, "about");
 
 fn main() {

src/settings.rs

@@ -12,10 +12,21 @@ pub struct Account {
     pub name: String,
 }
 
-#[derive(Deserialize, Serialize, Default)]
+#[derive(Deserialize, Serialize)]
 pub struct Preferences {
     pub accounts: Vec<Account>,
     pub current_account_index: u32,
+    pub infinite_scroll: bool,
+}
+
+impl Default for Preferences {
+    fn default() -> Self {
+        Self {
+            accounts: vec![],
+            current_account_index: 0,
+            infinite_scroll: true,
+        }
+    }
 }
 
 pub fn data_path() -> PathBuf {