Switch to gtk3

Cargo.toml

@@ -5,17 +5,10 @@ authors = ["Bilal Elmoussaoui <bil.elmoussaoui@gmail.com>"]
 edition = "2018"
 
 [dependencies]
-glib = { git = "https://github.com/gtk-rs/glib.git" }
-gio = { git = "https://github.com/gtk-rs/gio.git"  }
+glib = "0.9"
+gdk = "0.12"
+gtk = { version = "0.8", features= ["v3_16"] }
+gio = "0.8"
 log = "0.4"
 gettext-rs= { version = "0.4", features = ["gettext-system"] }
 
-
-[dependencies.gdk]
-package = "gdk4"
-git = "https://github.com/gtk-rs/gdk4"
-
-[dependencies.gtk]
-package = "gtk4"
-git = "https://github.com/gtk-rs/gtk4.git"
-

src/application.rs

@@ -4,27 +4,27 @@ use crate::widgets::Window;
 use gio::prelude::*;
 use gtk::prelude::*;
 use std::env;
-use std::rc::Rc;
+use std::{cell::RefCell, rc::Rc};
 
 pub struct Application {
     app: gtk::Application,
-    window: Rc<Window>,
+    window: RefCell<Rc<Option<Window>>>,
 }
 
 impl Application {
-    pub fn new() -> Self {
+    pub fn new() -> Rc<Self> {
         let app = gtk::Application::new(Some(config::APP_ID), gio::ApplicationFlags::FLAGS_NONE).unwrap();
-        let window = Rc::new(Window::new(&app));
 
-        let application = Self { app, window };
+        let application = Rc::new(Self {
+            app,
+            window: RefCell::new(Rc::new(None)),
+        });
 
-        application.setup_gactions();
-        application.setup_signals();
-        application.setup_css();
+        application.setup_signals(application.clone());
         application
     }
 
-    fn setup_gactions(&self) {
+    fn setup_gactions(&self, application: Rc<Self>) {
         // Quit
         utils::action(
             &self.app,
@@ -37,8 +37,10 @@ impl Application {
         utils::action(
             &self.app,
             "start-tour",
-            clone!(@strong self.window as window => move |_, _| {
+            clone!(@strong application => move |_, _| {
+                if let Some(window) = &*application.window.borrow().clone() {
                     window.start_tour();
+                }
             }),
         );
 
@@ -54,32 +56,43 @@ impl Application {
         utils::action(
             &self.app,
             "next-page",
-            clone!(@strong self.window as window => move |_, _| {
+            clone!(@strong application => move |_, _| {
+                if let Some(window) = &*application.window.borrow().clone() {
                     window.next_page();
+                }
             }),
         );
         utils::action(
             &self.app,
             "previous-page",
-            clone!(@strong self.window as window => move |_, _| {
+            clone!(@strong application => move |_, _| {
+                if let Some(window) = &*application.window.borrow().clone() {
                     window.previous_page();
+                }
             }),
         );
         self.app.set_accels_for_action("app.quit", &["<primary>q"]);
     }
 
-    fn setup_signals(&self) {
-        self.app.connect_activate(clone!(@weak self.window.widget as window => move |app| {
-            app.add_window(&window);
-            window.present();
+    fn setup_signals(&self, app: Rc<Self>) {
+        self.app.connect_startup(clone!(@weak app => move |_| {
+            app.setup_css();
+            app.setup_gactions(app.clone());
+        }));
+        self.app.connect_activate(clone!(@weak app => move |gtk_app| {
+           let window = Window::new(&gtk_app);
+            gtk_app.add_window(&window.widget);
+            window.widget.present();
+            window.widget.show_all();
+            app.window.replace(Rc::new(Some(window)));
         }));
     }
 
     fn setup_css(&self) {
         let p = gtk::CssProvider::new();
         gtk::CssProvider::load_from_resource(&p, "/org/gnome/Tour/style.css");
-        if let Some(display) = gdk::Display::get_default() {
-            gtk::StyleContext::add_provider_for_display(&display, &p, 500);
+        if let Some(screen) = gdk::Screen::get_default() {
+            gtk::StyleContext::add_provider_for_screen(&screen, &p, 500);
         }
     }
 

src/config.rs.in

-pub static APP_ID: &'static str = @APP_ID@;
-pub static PKGDATADIR: &'static str = @PKGDATADIR@;
-pub static PROFILE: &'static str = @PROFILE@;
-pub static NAME_SUFFIX: &'static str = @NAME_SUFFIX@;
-pub static VERSION: &'static str = @VERSION@;
-pub static GETTEXT_PACKAGE: &'static str = @GETTEXT_PACKAGE@;
-pub static LOCALEDIR: &'static str = @LOCALEDIR@;
-pub static DISTRO_NAME: &'static str = @DISTRO_NAME@;
-pub static DISTRO_VERSION: &'static str = @DISTRO_VERSION@;
-pub static DISTRO_ICON_NAME: &'static str = @DISTRO_ICON_NAME@;
+pub static APP_ID: &str = @APP_ID@;
+pub static PKGDATADIR: &str = @PKGDATADIR@;
+pub static PROFILE: &str = @PROFILE@;
+pub static NAME_SUFFIX: &str = @NAME_SUFFIX@;
+pub static VERSION: &str = @VERSION@;
+pub static GETTEXT_PACKAGE: &str = @GETTEXT_PACKAGE@;
+pub static LOCALEDIR: &str = @LOCALEDIR@;
+pub static DISTRO_NAME: &str = @DISTRO_NAME@;
+pub static DISTRO_VERSION: &str = @DISTRO_VERSION@;
+pub static DISTRO_ICON_NAME: &str = @DISTRO_ICON_NAME@;

src/widgets/headerbar.rs

@@ -4,6 +4,7 @@ use gtk::prelude::*;
 pub struct HeaderBar {
     pub widget: gtk::Stack,
     headerbar: gtk::HeaderBar,
+    title: gtk::Label,
     next_btn: gtk::Button,
 }
 
@@ -11,16 +12,17 @@ impl HeaderBar {
     pub fn new() -> Self {
         let widget = gtk::Stack::new();
         let headerbar = gtk::HeaderBar::new();
+        let title = gtk::Label::new(None);
         let next_btn = gtk::Button::new();
 
-        let headerbar = Self { widget, headerbar, next_btn };
+        let headerbar = Self { widget, headerbar, title, next_btn };
         headerbar.init();
         headerbar
     }
 
     pub fn start_tour(&self) {
         self.widget.set_visible_child_name("pages");
-        self.headerbar.set_show_title_buttons(false);
+        self.headerbar.set_show_close_button(false);
     }
 
     pub fn set_page_nr(&self, page_nr: i32, total_pages: i32) {
@@ -32,23 +34,26 @@ impl HeaderBar {
     }
 
     pub fn set_page_title(&self, title: &str) {
-        self.headerbar.set_title(Some(title));
+        self.title.set_label(title);
     }
 
     pub fn end_tour(&self) {
         self.widget.set_visible_child_name("welcome");
-        self.headerbar.set_show_title_buttons(true);
+        self.headerbar.set_show_close_button(true);
     }
 
     fn init(&self) {
-        self.headerbar.set_show_title_buttons(true);
+        self.headerbar.set_show_close_button(true);
+        self.headerbar.set_custom_title(Some(&self.title));
+        self.title.get_style_context().add_class("title");
+
         self.widget.set_hexpand(true);
         self.widget.set_transition_type(gtk::StackTransitionType::SlideLeftRight);
         self.widget.set_transition_duration(300);
         self.widget.get_style_context().add_class("titlebar");
 
         let container = gtk::HeaderBar::new();
-        container.set_show_title_buttons(true);
+        container.set_show_close_button(true);
         container.set_title(Some(&gettext("Welcome Tour")));
         self.widget.add_named(&container, "welcome");
 

src/widgets/pages/image.rs

@@ -52,7 +52,7 @@ impl ImagePageWidget {
         container.set_valign(gtk::Align::Center);
         container.set_property_margin(48);
 
-        let image = gtk::Picture::new_for_resource(Some(&self.resource_uri));
+        let image = gtk::Image::new_from_resource(&self.resource_uri);
         image.set_valign(gtk::Align::Start);
         container.add(&image);
 

src/widgets/pages/welcome.rs

@@ -22,7 +22,7 @@ impl WelcomePageWidget {
         self.widget.set_margin_top(24);
         self.widget.set_margin_bottom(24);
 
-        let logo = gtk::Image::new_from_icon_name(Some(config::DISTRO_ICON_NAME));
+        let logo = gtk::Image::new_from_icon_name(Some(config::DISTRO_ICON_NAME), gtk::IconSize::Dialog);
         logo.set_pixel_size(196);
         self.widget.add(&logo);
 

src/widgets/paginator.rs

@@ -28,7 +28,7 @@ impl PaginatorWidget {
     }
 
     pub fn get_current_page_nr(&self) -> i32 {
-        self.current_page.borrow().clone()
+        *self.current_page.borrow()
     }
 
     pub fn get_current_page(&self) -> Option<&Box<dyn Pageable>> {
@@ -37,12 +37,12 @@ impl PaginatorWidget {
     }
 
     pub fn next(&self) {
-        let next_page = self.current_page.borrow().clone() + 1;
+        let next_page = *self.current_page.borrow() + 1;
         self.go_to(next_page);
     }
 
     pub fn previous(&self) {
-        let previous_page = self.current_page.borrow().clone() - 1;
+        let previous_page = *self.current_page.borrow() - 1;
         self.go_to(previous_page);
     }