feat: add about drawer

src/main.rs

@@ -1,7 +1,7 @@
 // Copyright 2023 System76 <info@system76.com>
 // SPDX-License-Identifier: GPL-3.0-only
 
-use cosmic::app::{Core, Settings, Task};
+use cosmic::app::{Core, Settings, Task, context_drawer};
 use cosmic::command::set_theme;
 use cosmic::cosmic_config::{self, CosmicConfigEntry};
 use cosmic::iced::event::{self, Event};
@@ -12,7 +12,7 @@ use cosmic::iced::{
 };
 use cosmic::iced::window::set_mode;
 use cosmic::widget::menu::action::MenuAction;
-use cosmic::widget::{self, Slider, nav_bar, segmented_button};
+use cosmic::widget::{self, Slider, about::About, nav_bar, segmented_button};
 use cosmic::{Application, ApplicationExt, Element, action, cosmic_theme, executor, font, theme};
 use iced_video_player::gst::prelude::*;
 use iced_video_player::{Video, VideoPlayer, gst, gst_pbutils};
@@ -167,6 +167,7 @@ fn main() -> Result<(), Box<dyn Error>> {
 
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub enum Action {
+    About,
     FileClose,
     FileOpen,
     FileClearRecents,
@@ -192,6 +193,7 @@ impl MenuAction for Action {
 
     fn message(&self) -> Message {
         match self {
+            Self::About => Message::ToggleAbout,
             Self::FileClose => Message::FileClose,
             Self::FileOpen => Message::FileOpen,
             Self::FileClearRecents => Message::FileClearRecents,
@@ -289,6 +291,7 @@ pub enum Message {
     FolderOpenRecent(usize),
     MultipleLoad(Vec<url::Url>),
     Fullscreen,
+    LaunchUrl(String),
     Key(Modifiers, Key),
     AudioCode(usize),
     AudioToggle,
@@ -314,12 +317,14 @@ pub enum Message {
     AbRepeat,
     ShowControls,
     SystemThemeModeChange(cosmic_theme::ThemeMode),
+    ToggleAbout,
     WindowClose,
 }
 
 /// The [`App`] stores application-specific state.
 pub struct App {
     core: Core,
+    about: About,
     flags: Flags,
     album_art_opt: Option<tempfile::NamedTempFile>,
     controls: bool,
@@ -883,8 +888,26 @@ impl Application for App {
             tx
         };
 
+        let about = About::default()
+            .name(fl!("xdg-name"))
+            .icon(widget::icon::from_name(Self::APP_ID))
+            .version(env!("CARGO_PKG_VERSION"))
+            .author("System76")
+            .comments(fl!("xdg-comment"))
+            .license("GPL-3.0-only")
+            .license_url("https://spdx.org/licenses/GPL-3.0-only")
+            .developers([("Jeremy Soller", "jeremy@system76.com")])
+            .links([
+                (fl!("repository"), "https://github.com/pop-os/cosmic-player"),
+                (
+                    fl!("support"),
+                    "https://github.com/pop-os/cosmic-player/issues",
+                ),
+            ]);
+
         let mut app = App {
             core,
+            about,
             flags,
             album_art_opt: None,
             controls: true,
@@ -1202,6 +1225,12 @@ impl Application for App {
                     );
                 }
             }
+            Message::LaunchUrl(url) => match open::that_detached(&url) {
+                Ok(()) => {}
+                Err(err) => {
+                    log::warn!("failed to open URL {:?}: {}", url, err);
+                }
+            },
             Message::Key(modifiers, key) => {
                 for (key_bind, action) in self.key_binds.iter() {
                     if key_bind.matches(modifiers, &key) {
@@ -1611,6 +1640,9 @@ impl Application for App {
             Message::SystemThemeModeChange(_theme_mode) => {
                 return self.update_config();
             }
+            Message::ToggleAbout => {
+                self.core.set_show_context(!self.core.window.show_context);
+            }
             Message::WindowClose => {
                 self.close();
                 return exit();
@@ -1630,6 +1662,18 @@ impl Application for App {
         )]
     }
 
+    fn context_drawer(&self) -> Option<context_drawer::ContextDrawer<'_, Message>> {
+        if !self.core.window.show_context {
+            return None;
+        }
+
+        Some(context_drawer::about(
+            &self.about,
+            |url| Message::LaunchUrl(url.to_string()),
+            Message::ToggleAbout,
+        ))
+    }
+
     /// Creates a view after each update.
     fn view(&self) -> Element<'_, Self::Message> {
         let theme = theme::active();