Port SettingsEntry from cosmic-settings

applets/cosmic-applet-network/src/main.rs

@@ -5,6 +5,7 @@ extern crate relm4_macros;
 
 pub mod task;
 pub mod ui;
+pub mod widgets;
 
 use gtk4::{gio::ApplicationFlags, prelude::*, Orientation};
 use once_cell::sync::Lazy;

applets/cosmic-applet-network/src/ui/toggles.rs

@@ -1,27 +1,22 @@
-use gtk4::{prelude::*, Align, Label, Orientation, Separator, Switch};
+use crate::widgets::SettingsEntry;
+use gtk4::{prelude::*, Orientation, Separator, Switch};
 
 pub fn add_toggles(target: &gtk4::Box) {
     view! {
-        airplane_mode_box = gtk4::Box {
-            append: airplane_mode_label = &Label {
-                set_markup: "<b>Airplane Mode</b>",
-                set_halign: Align::Start
-            },
-            append: airplane_mode_switch = &Switch {}
+        airplane_mode = SettingsEntry {
+            set_title_markup: "<b>Airplane Mode</b>",
+            set_child: airplane_mode_switch = &Switch {}
         }
     }
     view! {
-        wifi_box = gtk4::Box {
-            append: wifi_label = &Label {
-                set_markup: "<b>WiFi</b>",
-                set_halign: Align::Start
-            },
-            append: wifi_switch = &Switch {}
+        wifi = SettingsEntry {
+            set_title_markup: "<b>WiFi</b>",
+            set_child: wifi_switch = &Switch {}
         }
     }
 
-    target.append(&airplane_mode_box);
+    target.append(&airplane_mode);
     target.append(&Separator::new(Orientation::Horizontal));
-    target.append(&wifi_box);
+    target.append(&wifi);
     target.append(&Separator::new(Orientation::Horizontal));
 }

applets/cosmic-applet-network/src/widgets.rs

@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: LGPL-3.0-or-later
+
+mod settings_entry;
+
+pub use settings_entry::SettingsEntry;

applets/cosmic-applet-network/src/widgets/settings_entry.rs

@@ -0,0 +1,214 @@
+// SPDX-License-Identifier: LGPL-3.0-or-later
+
+use gtk4::{
+    glib::{self, Object},
+    prelude::*,
+    subclass::prelude::*,
+    Label,
+};
+use std::cell::RefCell;
+
+glib::wrapper! {
+    pub struct SettingsEntry(ObjectSubclass<SettingsEntryImp>)
+        @extends gtk4::Widget,
+        @implements gtk4::Accessible;
+}
+
+impl SettingsEntry {
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    pub fn set_child<'a, Widget, IntoWidget>(&self, child: IntoWidget)
+    where
+        Widget: IsA<gtk4::Widget>,
+        IntoWidget: Into<Option<&'a Widget>>,
+    {
+        let imp = self.inner();
+        let child = child.into().map(AsRef::as_ref);
+        let child_box_ref = imp.child_box.borrow();
+        let child_box: &gtk4::Box = child_box_ref.as_ref().expect("child_box not created??");
+        if let Some(new_child) = child {
+            new_child.set_halign(gtk4::Align::End);
+            child_box.append(new_child);
+        }
+        if let Some(old_child) = imp.child.replace(child.cloned()) {
+            child_box.remove(&old_child);
+        }
+    }
+
+    pub fn set_child_label<A: AsRef<str>>(&self, label: A) {
+        let label = label.as_ref();
+        let child = Label::builder()
+            .label(label)
+            .css_classes(vec!["settings-entry-text".into()])
+            .build();
+        self.set_child(&child);
+    }
+
+    pub fn align_child(&self, alignment: gtk4::Align) {
+        let imp = self.inner();
+        let child_box = imp.child_box.borrow();
+        let child_box = child_box.as_ref().expect("child_box not created??");
+        let child = imp.child.borrow();
+        let child = child.as_ref().expect("child not set");
+        let title_desc_box = imp.title_desc_box.borrow();
+        let title_desc_box = title_desc_box
+            .as_ref()
+            .expect("title_desc_box not created?");
+        match alignment {
+            gtk4::Align::Start => {
+                child_box.reorder_child_after(title_desc_box, Some(child));
+            }
+            gtk4::Align::End => {
+                child_box.reorder_child_after(child, Some(title_desc_box));
+            }
+            _ => unimplemented!(),
+        }
+    }
+
+    pub fn set_title(&self, title: &str) {
+        let inner = self.inner();
+        let title_ref = inner.title.borrow_mut();
+        match &*title_ref {
+            Some(label) => label.set_label(title),
+            None => {
+                let title = gtk4::Label::builder()
+                    .label(title)
+                    .css_classes(vec!["settings-entry-title".into()])
+                    .halign(gtk4::Align::Start)
+                    .build();
+                let title_desc_box = inner.title_desc_box.borrow();
+                let title_desc_box = title_desc_box
+                    .as_ref()
+                    .expect("title_desc_box not created?");
+                if inner.desc.borrow().is_some() {
+                    title_desc_box.prepend(&title);
+                } else {
+                    title_desc_box.append(&title);
+                }
+            }
+        }
+    }
+
+    pub fn set_title_markup(&self, title: &str) {
+        let inner = self.inner();
+        let title_ref = inner.title.borrow_mut();
+        match &*title_ref {
+            Some(label) => label.set_markup(title),
+            None => {
+                let title = gtk4::Label::builder()
+                    .label(title)
+                    .use_markup(true)
+                    .css_classes(vec!["settings-entry-title".into()])
+                    .halign(gtk4::Align::Start)
+                    .build();
+                let title_desc_box = inner.title_desc_box.borrow();
+                let title_desc_box = title_desc_box
+                    .as_ref()
+                    .expect("title_desc_box not created?");
+                if inner.desc.borrow().is_some() {
+                    title_desc_box.prepend(&title);
+                } else {
+                    title_desc_box.append(&title);
+                }
+            }
+        }
+    }
+
+    pub fn set_description(&self, description: &str) {
+        let inner = self.inner();
+        let desc_ref = inner.desc.borrow_mut();
+        match &*desc_ref {
+            Some(label) => label.set_label(description),
+            None => {
+                let desc = gtk4::Label::builder()
+                    .label(description)
+                    .css_classes(vec!["settings-entry-desc".into()])
+                    .halign(gtk4::Align::Start)
+                    .build();
+                let title_desc_box = inner.title_desc_box.borrow();
+                let title_desc_box = title_desc_box
+                    .as_ref()
+                    .expect("title_desc_box not created?");
+                title_desc_box.append(&desc);
+            }
+        }
+    }
+
+    fn inner(&self) -> &SettingsEntryImp {
+        SettingsEntryImp::from_instance(self)
+    }
+}
+
+impl Default for SettingsEntry {
+    fn default() -> Self {
+        Object::new(&[]).expect("Failed to create `SettingsEntry`.")
+    }
+}
+
+#[derive(Debug, Default)]
+pub struct SettingsEntryImp {
+    title: RefCell<Option<gtk4::Label>>,
+    desc: RefCell<Option<gtk4::Label>>,
+    title_desc_box: RefCell<Option<gtk4::Box>>,
+    child_box: RefCell<Option<gtk4::Box>>,
+    child: RefCell<Option<gtk4::Widget>>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for SettingsEntryImp {
+    const NAME: &'static str = "SettingsEntry";
+    type Type = SettingsEntry;
+    type ParentType = gtk4::Widget;
+    type Interfaces = ();
+    type Instance = glib::subclass::basic::InstanceStruct<Self>;
+    type Class = glib::subclass::basic::ClassStruct<Self>;
+
+    fn class_init(klass: &mut Self::Class) {
+        // The layout manager determines how child widgets are laid out.
+        klass.set_layout_manager_type::<gtk4::BinLayout>();
+    }
+}
+
+impl ObjectImpl for SettingsEntryImp {
+    fn constructed(&self, obj: &Self::Type) {
+        self.parent_constructed(obj);
+        let child = gtk4::Box::builder()
+            .css_classes(vec!["settings-entry".into()])
+            .orientation(gtk4::Orientation::Horizontal)
+            .hexpand(true)
+            .margin_start(24)
+            .margin_end(24)
+            .margin_top(8)
+            .margin_bottom(8)
+            .spacing(16)
+            .build();
+
+        let title_and_desc = gtk4::Box::builder()
+            .css_classes(vec!["settings-entry-info".into()])
+            .orientation(gtk4::Orientation::Vertical)
+            .spacing(4)
+            .hexpand(true)
+            .valign(gtk4::Align::Center)
+            .build();
+        child.append(&title_and_desc);
+        *self.title_desc_box.borrow_mut() = Some(title_and_desc);
+        if let Some(entry_child) = self.child.borrow().as_ref() {
+            child.append(entry_child);
+        }
+        child.set_parent(obj);
+        *self.child_box.borrow_mut() = Some(child);
+    }
+
+    fn dispose(&self, _obj: &Self::Type) {
+        if let Some(child) = self.child.borrow_mut().take() {
+            child.unparent();
+        }
+        if let Some(child_box) = self.child_box.borrow_mut().take() {
+            child_box.unparent();
+        }
+    }
+}
+
+impl WidgetImpl for SettingsEntryImp {}