From aaffa76b982c1c92c79317a6813bfe45bc9c885d Mon Sep 17 00:00:00 2001
From: Ashley Wulber <ashley@system76.com>
Date: Wed, 17 Aug 2022 19:20:05 -0400
Subject: [PATCH] feat: load & watch cosmic.css

---
 src/lib.rs                      | 74 ++++++++++++++++++++++++++-------
 src/wayland.rs                  |  8 ++--
 widgets/src/labeled_item/imp.rs |  3 +-
 3 files changed, 63 insertions(+), 22 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 588000b9..4c96a8a3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -10,28 +10,42 @@ pub mod x;
 pub use libcosmic_widgets as widgets;
 
 use adw::StyleManager;
-use gtk4::{gdk, gio::{self, FileMonitorFlags, FileMonitorEvent, FileMonitor}, glib, prelude::*};
+use gtk4::{
+    gdk,
+    gio::{self, FileMonitor, FileMonitorEvent, FileMonitorFlags},
+    glib,
+    prelude::*,
+};
 
-pub fn init() -> Option<FileMonitor> {
+pub fn init() -> (Option<FileMonitor>, Option<FileMonitor>) {
     let _ = gtk4::init();
     adw::init();
 
-    let user_provider = gtk4::CssProvider::new();
+    let gtk_user_provider = gtk4::CssProvider::new();
     if let Some(display) = gdk::Display::default() {
         gtk4::StyleContext::add_provider_for_display(
             &display,
-            &user_provider,
+            &gtk_user_provider,
             gtk4::STYLE_PROVIDER_PRIORITY_USER,
         );
     }
 
+    let cosmic_user_provider = gtk4::CssProvider::new();
+    if let Some(display) = gdk::Display::default() {
+        gtk4::StyleContext::add_provider_for_display(
+            &display,
+            &cosmic_user_provider,
+            gtk4::STYLE_PROVIDER_PRIORITY_APPLICATION,
+        );
+    }
+
     let path = xdg::BaseDirectories::with_prefix("gtk-4.0")
-    .ok()
-    .and_then(|xdg_dirs| xdg_dirs.find_config_file("gtk.css"))
-    .unwrap_or_else(|| "~/.config/gtk-4.0/gtk.css".into());
+        .ok()
+        .and_then(|xdg_dirs| xdg_dirs.find_config_file("gtk.css"))
+        .unwrap_or_else(|| "~/.config/gtk-4.0/gtk.css".into());
     let file = gio::File::for_path(path);
-    if let Ok(monitor) = file.monitor(FileMonitorFlags::all(), None::<&gio::Cancellable>) {
-        monitor.connect_changed(glib::clone!(@strong user_provider => move |_monitor, file, _other_file, event| {
+    let gtk_css_monitor = file.monitor(FileMonitorFlags::all(), None::<&gio::Cancellable>).ok().map(|monitor| {
+        monitor.connect_changed(glib::clone!(@strong gtk_user_provider => move |_monitor, file, _other_file, event| {
             match event {
                 FileMonitorEvent::Deleted | FileMonitorEvent::MovedOut | FileMonitorEvent::Renamed => {
                     if adw::is_initialized() {
@@ -41,18 +55,46 @@ pub fn init() -> Option<FileMonitor> {
                         } else {
                             adw_user_colors_lib::colors::ColorOverrides::light_default().as_css()
                         };
-                        user_provider
+                        gtk_user_provider
                             .load_from_data(css.as_bytes());
                     }
                 },
                 FileMonitorEvent::ChangesDoneHint | FileMonitorEvent::Created | FileMonitorEvent::MovedIn => {
-                    user_provider.load_from_file(file);
+                    gtk_user_provider.load_from_file(file);
                 },
                 _ => {} // ignored
             }
         }));
-        Some(monitor)
-    } else {
-        None
-    }
-}
\ No newline at end of file
+        monitor
+    });
+    let path = xdg::BaseDirectories::with_prefix("gtk-4.0")
+    .ok()
+    .and_then(|xdg_dirs| xdg_dirs.find_config_file("cosmic.css"))
+    .unwrap_or_else(|| "~/.config/gtk-4.0/cosmic.css".into());
+    let file = gio::File::for_path(path);
+    cosmic_user_provider.load_from_file(&file);
+    let cosmic_css_monitor = file.monitor(FileMonitorFlags::all(), None::<&gio::Cancellable>).ok().map(|monitor| {
+            monitor.connect_changed(glib::clone!(@strong cosmic_user_provider => move |_monitor, file, _other_file, event| {
+                match event {
+                    FileMonitorEvent::Deleted | FileMonitorEvent::MovedOut | FileMonitorEvent::Renamed => {
+                        if adw::is_initialized() {
+                            let manager = StyleManager::default();
+                            let css = if manager.is_dark() {
+                                adw_user_colors_lib::colors::ColorOverrides::dark_default().as_css()
+                            } else {
+                                adw_user_colors_lib::colors::ColorOverrides::light_default().as_css()
+                            };
+                            cosmic_user_provider
+                                .load_from_data(css.as_bytes());
+                        }
+                    },
+                    FileMonitorEvent::ChangesDoneHint | FileMonitorEvent::Created | FileMonitorEvent::MovedIn => {
+                        cosmic_user_provider.load_from_file(file);
+                    },
+                    _ => {} // ignored
+                }
+            }));
+            monitor
+        });
+    (gtk_css_monitor, cosmic_css_monitor)
+}
diff --git a/src/wayland.rs b/src/wayland.rs
index 122a2705..a87e3b16 100644
--- a/src/wayland.rs
+++ b/src/wayland.rs
@@ -55,9 +55,7 @@ impl CosmicWaylandDisplay {
         }
 
         let wayland_display = unsafe {
-            wayland_client::Display::from_external_display(
-                display.wl_display().c_ptr() as *mut _
-            )
+            wayland_client::Display::from_external_display(display.wl_display().c_ptr() as *mut _)
         }; // XXX is this sound?
 
         let mut event_queue = wayland_display.create_event_queue();
@@ -176,8 +174,8 @@ impl ObjectImpl for LayerShellWindowInner {
     fn signals() -> &'static [Signal] {
         static SIGNALS: Lazy<Vec<Signal>> = Lazy::new(|| {
             vec![Signal::builder("is-active-notify")
-            .param_types(&[bool::static_type().into()])
-            .build()]
+                .param_types(&[bool::static_type().into()])
+                .build()]
         });
         SIGNALS.as_ref()
     }
diff --git a/widgets/src/labeled_item/imp.rs b/widgets/src/labeled_item/imp.rs
index 3a09eb06..8c84bd59 100644
--- a/widgets/src/labeled_item/imp.rs
+++ b/widgets/src/labeled_item/imp.rs
@@ -1,6 +1,7 @@
 use relm4::{
+    component::ComponentSenderInner,
     gtk::{prelude::*, Align, Box as GtkBox, Label, Orientation, Widget},
-    ComponentParts, ComponentSender, SimpleComponent, component::ComponentSenderInner,
+    ComponentParts, ComponentSender, SimpleComponent,
 };
 use std::{cell::RefCell, sync::Arc};