fix(applet): button & icon API refactor w/ applet example

examples/applet/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "applet"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+once_cell = "1"
+rust-embed = "8.0.0"
+tracing = "0.1"
+
+[dependencies.libcosmic]
+git = "https://github.com/pop-os/libcosmic"
+default-features = false
+features = ["applet", "tokio", "wayland"]

examples/applet/src/main.rs

@@ -0,0 +1,7 @@
+use crate::window::Window;
+
+mod window;
+
+fn main() -> cosmic::iced::Result {
+    cosmic::app::applet::run::<Window>(true, ())
+}

examples/applet/src/window.rs

@@ -0,0 +1,111 @@
+use cosmic::app::Core;
+use cosmic::iced::wayland::popup::{destroy_popup, get_popup};
+use cosmic::iced::window::Id;
+use cosmic::iced::{Command, Limits};
+use cosmic::iced_runtime::core::window;
+use cosmic::iced_style::application;
+use cosmic::theme::Button;
+use cosmic::widget::{list_column, settings, toggler};
+use cosmic::{Element, Theme};
+
+const ID: &str = "com.system76.CosmicAppletExample";
+
+#[derive(Default)]
+pub struct Window {
+    core: Core,
+    popup: Option<Id>,
+    id_ctr: u128,
+    example_row: bool,
+}
+
+#[derive(Clone, Debug)]
+pub enum Message {
+    TogglePopup,
+    PopupClosed(Id),
+    ToggleExampleRow(bool),
+}
+
+impl cosmic::Application for Window {
+    type Executor = cosmic::SingleThreadExecutor;
+    type Flags = ();
+    type Message = Message;
+    const APP_ID: &'static str = ID;
+
+    fn core(&self) -> &Core {
+        &self.core
+    }
+
+    fn core_mut(&mut self) -> &mut Core {
+        &mut self.core
+    }
+
+    fn init(
+        core: Core,
+        _flags: Self::Flags,
+    ) -> (Self, Command<cosmic::app::Message<Self::Message>>) {
+        let window = Window {
+            core,
+            ..Default::default()
+        };
+        (window, Command::none())
+    }
+
+    fn on_close_requested(&self, id: window::Id) -> Option<Message> {
+        Some(Message::PopupClosed(id))
+    }
+
+    fn update(&mut self, message: Self::Message) -> Command<cosmic::app::Message<Self::Message>> {
+        match message {
+            Message::TogglePopup => {
+                return if let Some(p) = self.popup.take() {
+                    destroy_popup(p)
+                } else {
+                    self.id_ctr += 1;
+                    let new_id = Id(self.id_ctr);
+                    self.popup.replace(new_id);
+                    let mut popup_settings =
+                        self.core
+                            .applet_helper
+                            .get_popup_settings(Id(0), new_id, None, None, None);
+                    popup_settings.positioner.size_limits = Limits::NONE
+                        .max_width(372.0)
+                        .min_width(300.0)
+                        .min_height(200.0)
+                        .max_height(1080.0);
+                    get_popup(popup_settings)
+                }
+            }
+            Message::PopupClosed(id) => {
+                if self.popup.as_ref() == Some(&id) {
+                    self.popup = None;
+                }
+            }
+            Message::ToggleExampleRow(toggled) => self.example_row = toggled,
+        }
+        Command::none()
+    }
+
+    fn view(&self) -> Element<Self::Message> {
+        self.core
+            .applet_helper
+            .icon_button(ID)
+            .on_press(Message::TogglePopup)
+            .style(Button::Text)
+            .into()
+    }
+
+    fn view_window(&self, _id: Id) -> Element<Self::Message> {
+        let content_list = list_column().padding(5).spacing(0).add(settings::item(
+            "Example row",
+            toggler(None, self.example_row, |value| {
+                Message::ToggleExampleRow(value)
+            }),
+        ));
+
+        self.core.applet_helper.popup_container(content_list).into()
+    }
+
+    fn style(&self) -> Option<<Theme as application::StyleSheet>::Style> {
+        Some(cosmic::app::applet::style())
+    }
+}