view: Refactor view to have a manager View struct.

The view struct creates, manages and runs the view, and handles all communication with components outside of the view.

src/main.rs

@@ -2,26 +2,9 @@ mod controller;
 mod pipewire_connection;
 mod view;
 
-use gtk::glib::{self, clone};
-use gtk::prelude::*;
+use std::rc::Rc;
 
-// FIXME: This should be in its own .css file.
-static STYLE: &str = "
-.audio {
-    background: rgb(50,100,240);
-	color: black;
-}
-
-.video {
-    background: rgb(200,200,0);
-	color: black;
-}
-
-.midi {
-    background: rgb(200,0,50);
-    color: black;
-}
-";
+use gtk::{glib, prelude::*};
 
 #[derive(Debug)]
 pub struct PipewireLink {
@@ -35,10 +18,9 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     env_logger::init();
     gtk::init()?;
 
-    let graphview = view::GraphView::new();
-
+    let view = Rc::new(view::View::new());
     let pw_con = pipewire_connection::PipewireConnection::new()?;
-    let _controller = controller::Controller::new(graphview.clone(), pw_con.clone());
+    let _controller = controller::Controller::new(view.clone(), pw_con.clone());
 
     // Do an initial roundtrip before showing the view,
     // so that the graph is already populated when the window opens.
@@ -49,43 +31,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         Continue(true)
     });
 
-    let app = gtk::Application::new(Some("org.freedesktop.ryuukyu.helvum"), Default::default())
-        .expect("Application creation failed");
-
-    app.connect_startup(|_| {
-        // Load CSS from the STYLE variable.
-        let provider = gtk::CssProvider::new();
-        provider.load_from_data(STYLE.as_bytes());
-        gtk::StyleContext::add_provider_for_display(
-            &gtk::gdk::Display::get_default().expect("Error initializing gtk css provider."),
-            &provider,
-            gtk::STYLE_PROVIDER_PRIORITY_APPLICATION,
-        );
-    });
-
-    app.connect_activate(move |app| {
-        let scrollwindow = gtk::ScrolledWindowBuilder::new().child(&graphview).build();
-        let window = gtk::ApplicationWindowBuilder::new()
-            .application(app)
-            .default_width(1280)
-            .default_height(720)
-            .title("Helvum - Pipewire Patchbay")
-            .child(&scrollwindow)
-            .build();
-        window
-            .get_settings()
-            .set_property_gtk_application_prefer_dark_theme(true);
-        window.show();
-    });
-
-    let quit = gtk::gio::SimpleAction::new("quit", None);
-    quit.connect_activate(clone!(@weak app => move |_, _| {
-        app.quit();
-    }));
-    app.set_accels_for_action("app.quit", &["<Control>Q"]);
-    app.add_action(&quit);
-
-    app.run(&std::env::args().collect::<Vec<_>>());
+    view.run();
 
     Ok(())
 }