From 841816e8d1987a867ff551853e12d6291eea4c39 Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jackpot51@gmail.com>
Date: Fri, 24 Jan 2025 14:05:50 -0700
Subject: [PATCH] Add tree view, fixes #52, fixes #53

---
 Cargo.lock                |  47 ++++--
 Cargo.toml                |   8 +-
 i18n/en/cosmic_player.ftl |   2 +
 src/config.rs             |   6 +-
 src/localize.rs           |  64 +++++--
 src/main.rs               | 346 +++++++++++++++++++++++++++++++++++++-
 src/menu.rs               |  44 +++--
 src/project.rs            |  99 +++++++++++
 8 files changed, 557 insertions(+), 59 deletions(-)
 create mode 100644 src/project.rs

diff --git a/Cargo.lock b/Cargo.lock
index 72eca37..5bfd4bb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1076,6 +1076,8 @@ dependencies = [
  "i18n-embed",
  "i18n-embed-fl",
  "iced_video_player",
+ "icu_collator",
+ "icu_provider",
  "image",
  "lazy_static",
  "libcosmic",
@@ -2484,9 +2486,9 @@ dependencies = [
 
 [[package]]
 name = "i18n-embed"
-version = "0.13.9"
+version = "0.14.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "92a86226a7a16632de6723449ee5fe70bac5af718bc642ee9ca2f0f6e14fa1fa"
+checksum = "94205d95764f5bb9db9ea98fa77f89653365ca748e27161f5bbea2ffd50e459c"
 dependencies = [
  "arc-swap",
  "fluent",
@@ -2506,9 +2508,9 @@ dependencies = [
 
 [[package]]
 name = "i18n-embed-fl"
-version = "0.6.7"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d26a3d3569737dfaac7fc1c4078e6af07471c3060b8e570bcd83cdd5f4685395"
+checksum = "9fc1f8715195dffc4caddcf1cf3128da15fe5d8a137606ea8856c9300047d5a2"
 dependencies = [
  "dashmap",
  "find-crate",
@@ -2797,6 +2799,31 @@ dependencies = [
  "objc2 0.5.2",
 ]
 
+[[package]]
+name = "icu_collator"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d370371887d31d56f361c3eaa15743e54f13bc677059c9191c77e099ed6966b2"
+dependencies = [
+ "displaydoc",
+ "icu_collator_data",
+ "icu_collections",
+ "icu_locid_transform",
+ "icu_normalizer",
+ "icu_properties",
+ "icu_provider",
+ "smallvec",
+ "utf16_iter",
+ "utf8_iter",
+ "zerovec",
+]
+
+[[package]]
+name = "icu_collator_data"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ee3f88741364b7d6269cce6827a3e6a8a2cf408a78f766c9224ab479d5e4ae5"
+
 [[package]]
 name = "icu_collections"
 version = "1.5.0"
@@ -4442,9 +4469,9 @@ checksum = "6c20b6793b5c2fa6553b250154b78d6d0db37e72700ae35fad9387a46f487c97"
 
 [[package]]
 name = "rust-embed"
-version = "6.8.1"
+version = "8.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a36224c3276f8c4ebc8c20f158eca7ca4359c8db89991c4925132aaaf6702661"
+checksum = "fa66af4a4fdd5e7ebc276f115e895611a34739a9c1c01028383d612d550953c0"
 dependencies = [
  "rust-embed-impl",
  "rust-embed-utils",
@@ -4453,9 +4480,9 @@ dependencies = [
 
 [[package]]
 name = "rust-embed-impl"
-version = "6.8.1"
+version = "8.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49b94b81e5b2c284684141a2fb9e2a31be90638caf040bf9afbc5a0416afe1ac"
+checksum = "6125dbc8867951125eec87294137f4e9c2c96566e61bf72c45095a7c77761478"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -4466,9 +4493,9 @@ dependencies = [
 
 [[package]]
 name = "rust-embed-utils"
-version = "7.8.1"
+version = "8.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d38ff6bf570dc3bb7100fce9f7b60c33fa71d80e88da3f2580df4ff2bdded74"
+checksum = "2e5347777e9aacb56039b0e1f28785929a8a3b709e87482e7442c72e7c12529d"
 dependencies = [
  "sha2",
  "walkdir",
diff --git a/Cargo.toml b/Cargo.toml
index 7b89bcd..34f95d8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,9 +13,11 @@ tempfile = "3"
 tokio = "1"
 url = "2"
 # Internationalization
-i18n-embed = { version = "0.13", features = ["fluent-system", "desktop-requester"] }
-i18n-embed-fl = "0.6"
-rust-embed = "6"
+icu_collator = "1.5"
+icu_provider = { version = "1.5", features = ["sync"] }
+i18n-embed = { version = "0.14", features = ["fluent-system", "desktop-requester"] }
+i18n-embed-fl = "0.7"
+rust-embed = "8"
 # Logging
 env_logger = "0.10"
 log = "0.4"
diff --git a/i18n/en/cosmic_player.ftl b/i18n/en/cosmic_player.ftl
index 932ec08..9961387 100644
--- a/i18n/en/cosmic_player.ftl
+++ b/i18n/en/cosmic_player.ftl
@@ -1,6 +1,7 @@
 audio = Audio
 no-video-or-audio-file-open = No video or audio file open
 open-file = Open file
+open-folder = Open folder
 subtitles = Subtitles
 
 # Context Pages
@@ -24,4 +25,5 @@ open-recent-media = Open recent media
 close-file = Close file
 open-media-folder = Open media folder...
 open-recent-media-folder = Open recent media folder
+close-media-folder = Close media folder
 quit = Quit
\ No newline at end of file
diff --git a/src/config.rs b/src/config.rs
index 233cf48..dfb895a 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -5,7 +5,7 @@ use cosmic::{
     theme,
 };
 use serde::{Deserialize, Serialize};
-use std::collections::VecDeque;
+use std::{collections::VecDeque, path::PathBuf};
 
 pub const CONFIG_VERSION: u64 = 1;
 
@@ -43,14 +43,14 @@ impl Default for Config {
 #[derive(Clone, CosmicConfigEntry, Debug, Deserialize, Eq, PartialEq, Serialize)]
 pub struct ConfigState {
     pub recent_files: VecDeque<url::Url>,
-    pub recent_folders: VecDeque<url::Url>,
+    pub recent_projects: VecDeque<PathBuf>,
 }
 
 impl Default for ConfigState {
     fn default() -> Self {
         Self {
             recent_files: VecDeque::new(),
-            recent_folders: VecDeque::new(),
+            recent_projects: VecDeque::new(),
         }
     }
 }
diff --git a/src/localize.rs b/src/localize.rs
index f5c6fb9..70272fb 100644
--- a/src/localize.rs
+++ b/src/localize.rs
@@ -1,17 +1,37 @@
 // SPDX-License-Identifier: GPL-3.0-only
 
+use std::str::FromStr;
+use std::sync::OnceLock;
+
 use i18n_embed::{
     fluent::{fluent_language_loader, FluentLanguageLoader},
     DefaultLocalizer, LanguageLoader, Localizer,
 };
+use icu_collator::{Collator, CollatorOptions, Numeric};
+use icu_provider::DataLocale;
 use rust_embed::RustEmbed;
 
 #[derive(RustEmbed)]
 #[folder = "i18n/"]
 struct Localizations;
 
-lazy_static::lazy_static! {
-    pub static ref LANGUAGE_LOADER: FluentLanguageLoader = {
+pub static LANGUAGE_LOADER: OnceLock<FluentLanguageLoader> = OnceLock::new();
+pub static LANGUAGE_SORTER: OnceLock<Collator> = OnceLock::new();
+
+#[macro_export]
+macro_rules! fl {
+    ($message_id:literal) => {{
+        i18n_embed_fl::fl!($crate::localize::LANGUAGE_LOADER.get().unwrap(), $message_id)
+    }};
+
+    ($message_id:literal, $($args:expr),*) => {{
+        i18n_embed_fl::fl!($crate::localize::LANGUAGE_LOADER.get().unwrap(), $message_id, $($args), *)
+    }};
+}
+
+// Get the `Localizer` to be used for localizing this library.
+pub fn localizer() -> Box<dyn Localizer> {
+    LANGUAGE_LOADER.get_or_init(|| {
         let loader: FluentLanguageLoader = fluent_language_loader!();
 
         loader
@@ -19,23 +39,12 @@ lazy_static::lazy_static! {
             .expect("Error while loading fallback language");
 
         loader
-    };
-}
+    });
 
-#[macro_export]
-macro_rules! fl {
-    ($message_id:literal) => {{
-        i18n_embed_fl::fl!($crate::localize::LANGUAGE_LOADER, $message_id)
-    }};
-
-    ($message_id:literal, $($args:expr),*) => {{
-        i18n_embed_fl::fl!($crate::localize::LANGUAGE_LOADER, $message_id, $($args), *)
-    }};
-}
-
-// Get the `Localizer` to be used for localizing this library.
-pub fn localizer() -> Box<dyn Localizer> {
-    Box::from(DefaultLocalizer::new(&*LANGUAGE_LOADER, &Localizations))
+    Box::from(DefaultLocalizer::new(
+        LANGUAGE_LOADER.get().unwrap(),
+        &Localizations,
+    ))
 }
 
 pub fn localize() {
@@ -46,3 +55,22 @@ pub fn localize() {
         eprintln!("Error while loading language for App List {}", error);
     }
 }
+
+pub fn sorter() -> &'static Collator {
+    LANGUAGE_SORTER.get_or_init(|| {
+        let mut options = CollatorOptions::new();
+        options.numeric = Some(Numeric::On);
+        let localizer = localizer();
+        let language_loader = localizer.language_loader();
+
+        DataLocale::from_str(&language_loader.current_language().to_string())
+            .or_else(|_| DataLocale::from_str(&language_loader.fallback_language().to_string()))
+            .ok()
+            .and_then(|locale| Collator::try_new(&locale, options).ok())
+            .or_else(|| {
+                let locale = DataLocale::from_str("en-US").expect("en-US is a valid BCP-47 tag");
+                Collator::try_new(&locale, options).ok()
+            })
+            .expect("Creating a collator from the system's current language, the fallback language, or American English should succeed")
+    })
+}
diff --git a/src/main.rs b/src/main.rs
index 6a66dff..a6bc650 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -12,8 +12,8 @@ use cosmic::{
         subscription::Subscription,
         window, Alignment, Background, Border, Color, ContentFit, Length, Limits,
     },
-    theme,
-    widget::{self, menu::action::MenuAction, Slider},
+    iced_style, theme,
+    widget::{self, menu::action::MenuAction, nav_bar, segmented_button, Slider},
     Application, ApplicationExt, Element,
 };
 use iced_video_player::{
@@ -24,7 +24,9 @@ use std::{
     any::TypeId,
     collections::HashMap,
     ffi::{CStr, CString},
-    fs, process, thread,
+    fs,
+    path::{Path, PathBuf},
+    process, thread,
     time::{Duration, Instant},
 };
 use tokio::sync::mpsc;
@@ -32,6 +34,7 @@ use tokio::sync::mpsc;
 use crate::{
     config::{Config, ConfigState, CONFIG_VERSION},
     key_bind::{key_binds, KeyBind},
+    project::ProjectNode,
 };
 
 mod config;
@@ -40,6 +43,7 @@ mod localize;
 mod menu;
 #[cfg(feature = "mpris-server")]
 mod mpris;
+mod project;
 
 static CONTROLS_TIMEOUT: Duration = Duration::new(2, 0);
 
@@ -143,6 +147,7 @@ pub enum Action {
     FileClose,
     FileOpen,
     FileOpenRecent(usize),
+    FolderClose(usize),
     FolderOpen,
     FolderOpenRecent(usize),
     Fullscreen,
@@ -160,6 +165,7 @@ impl MenuAction for Action {
             Self::FileClose => Message::FileClose,
             Self::FileOpen => Message::FileOpen,
             Self::FileOpenRecent(index) => Message::FileOpenRecent(*index),
+            Self::FolderClose(index) => Message::FolderClose(*index),
             Self::FolderOpen => Message::FolderOpen,
             Self::FolderOpenRecent(index) => Message::FolderOpenRecent(*index),
             Self::Fullscreen => Message::Fullscreen,
@@ -224,6 +230,8 @@ pub enum Message {
     FileLoad(url::Url),
     FileOpen,
     FileOpenRecent(usize),
+    FolderClose(usize),
+    FolderLoad(PathBuf),
     FolderOpen,
     FolderOpenRecent(usize),
     Fullscreen,
@@ -259,6 +267,8 @@ pub struct App {
     fullscreen: bool,
     key_binds: HashMap<KeyBind, Action>,
     mpris_opt: Option<(MprisMeta, MprisState, mpsc::UnboundedSender<MprisEvent>)>,
+    nav_model: segmented_button::SingleSelectModel,
+    projects: Vec<(String, PathBuf)>,
     video_opt: Option<Video>,
     position: f64,
     duration: f64,
@@ -293,6 +303,7 @@ impl App {
         self.text_codes.clear();
         self.current_text = -1;
         self.update_mpris_meta();
+        self.update_nav_bar_active();
         was_open
     }
 
@@ -424,6 +435,128 @@ impl App {
         self.update_title()
     }
 
+    fn open_folder<P: AsRef<Path>>(&mut self, path: P, mut position: u16, indent: u16) {
+        let read_dir = match fs::read_dir(&path) {
+            Ok(ok) => ok,
+            Err(err) => {
+                log::error!("failed to read directory {:?}: {}", path.as_ref(), err);
+                return;
+            }
+        };
+
+        let mut nodes = Vec::new();
+        for entry_res in read_dir {
+            let entry = match entry_res {
+                Ok(ok) => ok,
+                Err(err) => {
+                    log::error!(
+                        "failed to read entry in directory {:?}: {}",
+                        path.as_ref(),
+                        err
+                    );
+                    continue;
+                }
+            };
+
+            let entry_path = entry.path();
+            let node = match ProjectNode::new(&entry_path) {
+                Ok(ok) => ok,
+                Err(err) => {
+                    log::error!(
+                        "failed to open directory {:?} entry {:?}: {}",
+                        path.as_ref(),
+                        entry_path,
+                        err
+                    );
+                    continue;
+                }
+            };
+            nodes.push(node);
+        }
+
+        nodes.sort();
+
+        for node in nodes {
+            let mut entity = self
+                .nav_model
+                .insert()
+                .position(position)
+                .indent(indent)
+                .text(node.name().to_string());
+            if let Some(icon) = node.icon(16) {
+                entity = entity.icon(icon);
+            }
+            entity.data(node);
+
+            position += 1;
+        }
+    }
+
+    pub fn open_project<P: AsRef<Path>>(&mut self, path: P) {
+        let path = path.as_ref();
+        let node = match ProjectNode::new(path) {
+            Ok(mut node) => {
+                match &mut node {
+                    ProjectNode::Folder {
+                        name,
+                        path,
+                        open,
+                        root,
+                    } => {
+                        *open = true;
+                        *root = true;
+
+                        for (_project_name, project_path) in self.projects.iter() {
+                            if project_path == path {
+                                // Project already open
+                                return;
+                            }
+                        }
+
+                        // Save the absolute path
+                        self.projects.push((name.to_string(), path.to_path_buf()));
+
+                        // Add to recent projects, ensuring only one entry
+                        self.flags
+                            .config_state
+                            .recent_projects
+                            .retain(|x| x != path);
+                        self.flags
+                            .config_state
+                            .recent_projects
+                            .push_front(path.to_path_buf());
+                        self.flags.config_state.recent_projects.truncate(10);
+                        self.save_config_state();
+
+                        // Open nav bar
+                        self.core.nav_bar_set_toggled(true);
+                    }
+                    _ => {
+                        log::error!("failed to open project {:?}: not a directory", path);
+                        return;
+                    }
+                }
+                node
+            }
+            Err(err) => {
+                log::error!("failed to open project {:?}: {}", path, err);
+                return;
+            }
+        };
+
+        let mut entity = self.nav_model.insert().text(node.name().to_string());
+        if let Some(icon) = node.icon(16) {
+            entity = entity.icon(icon);
+        }
+        entity = entity.data(node);
+
+        let id = entity.id();
+
+        let position = self.nav_model.position(id).unwrap_or(0);
+
+        self.open_folder(path, position + 1, 1);
+    }
+
     fn save_config_state(&mut self) {
         if let Some(ref config_state_handler) = self.flags.config_state_handler {
             if let Err(err) = self.flags.config_state.write_entry(config_state_handler) {
@@ -561,6 +694,52 @@ impl App {
         }
     }
 
+    fn update_nav_bar_active(&mut self) {
+        let tab_path_opt = match &self.flags.url_opt {
+            Some(url) => url.to_file_path().ok(),
+            None => None,
+        };
+
+        // Locate tree node to activate
+        let mut active_id = segmented_button::Entity::default();
+
+        if let Some(tab_path) = tab_path_opt {
+            // Automatically expand tree to find and select active file
+            loop {
+                let mut expand_opt = None;
+                for id in self.nav_model.iter() {
+                    if let Some(node) = self.nav_model.data(id) {
+                        match node {
+                            ProjectNode::Folder { path, open, .. } => {
+                                if tab_path.starts_with(path) && !*open {
+                                    expand_opt = Some(id);
+                                    break;
+                                }
+                            }
+                            ProjectNode::File { path, .. } => {
+                                if path == &tab_path {
+                                    active_id = id;
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                }
+                match expand_opt {
+                    Some(id) => {
+                        //TODO: can this be optimized?
+                        // Task not used becuase opening a folder just returns Task::none
+                        let _ = self.on_nav_select(id);
+                    }
+                    None => {
+                        break;
+                    }
+                }
+            }
+        }
+        self.nav_model.activate(active_id);
+    }
+
     fn update_title(&mut self) -> Command<Message> {
         //TODO: filename?
         let title = "COSMIC Media Player";
@@ -604,6 +783,8 @@ impl Application for App {
             fullscreen: false,
             key_binds: key_binds(),
             mpris_opt: None,
+            nav_model: nav_bar::Model::builder().build(),
+            projects: Vec::new(),
             video_opt: None,
             position: 0.0,
             duration: 0.0,
@@ -615,10 +796,25 @@ impl Application for App {
             current_text: -1,
         };
 
+        // Do not show nav bar by default. Will be opened by open_project if needed
+        app.core.nav_bar_set_toggled(false);
+        //TODO: handle command line arguments that are folders?
+
+        // Add button to open a project
+        //TODO: remove and show this based on open projects?
+        app.nav_model
+            .insert()
+            .icon(widget::icon::from_name("folder-open-symbolic").size(16))
+            .text(fl!("open-folder"));
+
         let command = app.load();
         (app, command)
     }
 
+    fn nav_model(&self) -> Option<&nav_bar::Model> {
+        Some(&self.nav_model)
+    }
+
     fn on_escape(&mut self) -> Command<Self::Message> {
         if self.fullscreen {
             return self.update(Message::Fullscreen);
@@ -627,6 +823,78 @@ impl Application for App {
         }
     }
 
+    fn on_nav_select(&mut self, id: nav_bar::Id) -> Command<Message> {
+        // Toggle open state and get clone of node data
+        let node_opt = match self.nav_model.data_mut::<ProjectNode>(id) {
+            Some(node) => {
+                if let ProjectNode::Folder { open, .. } = node {
+                    *open = !*open;
+                }
+                Some(node.clone())
+            }
+            None => None,
+        };
+
+        match node_opt {
+            Some(node) => {
+                // Update icon
+                if let Some(icon) = node.icon(16) {
+                    self.nav_model.icon_set(id, icon);
+                } else {
+                    self.nav_model.icon_remove(id);
+                }
+
+                match node {
+                    ProjectNode::Folder { path, open, .. } => {
+                        let position = self.nav_model.position(id).unwrap_or(0);
+                        let indent = self.nav_model.indent(id).unwrap_or(0);
+                        if open {
+                            // Open folder
+                            self.open_folder(path, position + 1, indent + 1);
+                        } else {
+                            // Close folder
+                            while let Some(child_id) = self.nav_model.entity_at(position + 1) {
+                                if self.nav_model.indent(child_id).unwrap_or(0) > indent {
+                                    self.nav_model.remove(child_id);
+                                } else {
+                                    break;
+                                }
+                            }
+                        }
+
+                        // Prevent nav bar from closing when selecting a
+                        // folder in condensed mode.
+                        self.core_mut().nav_bar_set_toggled(true);
+
+                        Command::none()
+                    }
+                    ProjectNode::File { path, .. } => match url::Url::from_file_path(&path) {
+                        Ok(url) => self.update(Message::FileLoad(url)),
+                        Err(()) => {
+                            log::warn!("failed to convert {:?} to url", path);
+                            Command::none()
+                        }
+                    },
+                }
+            }
+            None => {
+                // Open folder
+                self.update(Message::FolderOpen)
+            }
+        }
+    }
+
+    fn style(&self) -> Option<theme::Application> {
+        // This ensures we have a solid background color even when using no content container
+        Some(theme::Application::Custom(Box::new(|theme| {
+            iced_style::application::Appearance {
+                background_color: theme.cosmic().bg_color().into(),
+                icon_color: theme.cosmic().on_bg_color().into(),
+                text_color: theme.cosmic().on_bg_color().into(),
+            }
+        })))
+    }
+
     /// Handle application events here.
     fn update(&mut self, message: Self::Message) -> Command<Self::Message> {
         match message {
@@ -678,12 +946,75 @@ impl Application for App {
             }
             Message::FileOpenRecent(index) => {
                 if let Some(url) = self.flags.config_state.recent_files.get(index) {
-                    self.flags.url_opt = Some(url.clone());
-                    return self.load();
+                    return self.update(Message::FileLoad(url.clone()));
                 }
             }
-            Message::FolderOpen | Message::FolderOpenRecent(..) => {
-                log::error!("TODO: {:?}", message);
+            Message::FolderClose(project_i) => {
+                if project_i < self.projects.len() {
+                    let (_project_name, project_path) = self.projects.remove(project_i);
+                    let mut position = 0;
+                    let mut closing = false;
+                    while let Some(id) = self.nav_model.entity_at(position) {
+                        match self.nav_model.data::<ProjectNode>(id) {
+                            Some(node) => {
+                                if let ProjectNode::Folder { path, root, .. } = node {
+                                    if path == &project_path {
+                                        // Found the project root node, closing
+                                        closing = true;
+                                    } else if *root && closing {
+                                        // Found another project root node after closing, breaking
+                                        break;
+                                    }
+                                }
+                            }
+                            None => {
+                                if closing {
+                                    break;
+                                }
+                            }
+                        }
+                        if closing {
+                            self.nav_model.remove(id);
+                        } else {
+                            position += 1;
+                        }
+                    }
+                }
+            }
+            Message::FolderLoad(path) => {
+                self.open_project(path);
+            }
+            Message::FolderOpen => {
+                //TODO: embed cosmic-files dialog (after libcosmic rebase works)
+                #[cfg(feature = "xdg-portal")]
+                return Command::perform(
+                    async move {
+                        let dialog = cosmic::dialog::file_chooser::open::Dialog::new()
+                            .title(fl!("open-media-folder"));
+                        match dialog.open_folder().await {
+                            Ok(response) => {
+                                let url = response.url();
+                                match url.to_file_path() {
+                                    Ok(path) => message::app(Message::FolderLoad(path)),
+                                    Err(()) => {
+                                        log::warn!("unsupported folder URL {:?}", url);
+                                        message::none()
+                                    }
+                                }
+                            }
+                            Err(err) => {
+                                log::warn!("failed to open folder: {}", err);
+                                message::none()
+                            }
+                        }
+                    },
+                    |x| x,
+                );
+            }
+            Message::FolderOpenRecent(index) => {
+                if let Some(path) = self.flags.config_state.recent_projects.get(index) {
+                    return self.update(Message::FolderLoad(path.clone()));
+                }
             }
             Message::Fullscreen => {
                 //TODO: cleanest way to close dropdowns
@@ -882,6 +1213,7 @@ impl Application for App {
             &self.flags.config,
             &self.flags.config_state,
             &self.key_binds,
+            &self.projects,
         )]
     }
 
diff --git a/src/menu.rs b/src/menu.rs
index 116716c..2a1fc5d 100644
--- a/src/menu.rs
+++ b/src/menu.rs
@@ -5,7 +5,7 @@ use cosmic::{
     widget::menu::{self, key_bind::KeyBind, ItemHeight, ItemWidth, MenuBar},
     Element,
 };
-use std::collections::HashMap;
+use std::{collections::HashMap, path::PathBuf};
 
 use crate::{fl, Action, Config, ConfigState, Message};
 
@@ -13,18 +13,20 @@ pub fn menu_bar<'a>(
     config: &Config,
     config_state: &ConfigState,
     key_binds: &HashMap<KeyBind, Action>,
+    projects: &Vec<(String, PathBuf)>,
 ) -> Element<'a, Message> {
     let home_dir_opt = dirs::home_dir();
-    let format_path = |url: &url::Url| -> String {
-        match url.to_file_path() {
-            Ok(path) => {
-                if let Some(home_dir) = &home_dir_opt {
-                    if let Ok(part) = path.strip_prefix(home_dir) {
-                        return format!("~/{}", part.display());
-                    }
-                }
-                path.display().to_string()
+    let format_path = |path: &PathBuf| -> String {
+        if let Some(home_dir) = &home_dir_opt {
+            if let Ok(part) = path.strip_prefix(home_dir) {
+                return format!("~/{}", part.display());
             }
+        }
+        path.display().to_string()
+    };
+    let format_url = |url: &url::Url| -> String {
+        match url.to_file_path() {
+            Ok(path) => format_path(&path),
             Err(()) => url.to_string(),
         }
     };
@@ -32,19 +34,27 @@ pub fn menu_bar<'a>(
     let mut recent_files = Vec::with_capacity(config_state.recent_files.len());
     for (i, path) in config_state.recent_files.iter().enumerate() {
         recent_files.push(menu::Item::Button(
-            format_path(path),
+            format_url(path),
             Action::FileOpenRecent(i),
         ));
     }
 
-    let mut recent_folders = Vec::with_capacity(config_state.recent_folders.len());
-    for (i, path) in config_state.recent_folders.iter().enumerate() {
-        recent_folders.push(menu::Item::Button(
+    let mut recent_projects = Vec::with_capacity(config_state.recent_projects.len());
+    for (i, path) in config_state.recent_projects.iter().enumerate() {
+        recent_projects.push(menu::Item::Button(
             format_path(path),
             Action::FolderOpenRecent(i),
         ));
     }
 
+    let mut close_projects = Vec::with_capacity(projects.len());
+    for (folder_i, (name, _path)) in projects.iter().enumerate() {
+        close_projects.push(menu::Item::Button(
+            name.clone(),
+            Action::FolderClose(folder_i),
+        ));
+    }
+
     MenuBar::new(vec![menu::Tree::with_children(
         menu::root(fl!("file")),
         menu::items(
@@ -54,12 +64,10 @@ pub fn menu_bar<'a>(
                 menu::Item::Folder(fl!("open-recent-media"), recent_files),
                 menu::Item::Button(fl!("close-file"), Action::FileClose),
                 menu::Item::Divider,
-                /*TODO: folders
                 menu::Item::Button(fl!("open-media-folder"), Action::FolderOpen),
-                menu::Item::Folder(fl!("open-recent-media-folder"), recent_folders),
-                menu::Item::Folder(fl!("close-media-folder"), close_folders),
+                menu::Item::Folder(fl!("open-recent-media-folder"), recent_projects),
+                menu::Item::Folder(fl!("close-media-folder"), close_projects),
                 menu::Item::Divider,
-                */
                 menu::Item::Button(fl!("quit"), Action::WindowClose),
             ],
         ),
diff --git a/src/project.rs b/src/project.rs
new file mode 100644
index 0000000..239f6aa
--- /dev/null
+++ b/src/project.rs
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-3.0-only
+
+use cosmic::widget;
+use std::{
+    cmp::Ordering,
+    fs, io,
+    path::{Path, PathBuf},
+};
+
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub enum ProjectNode {
+    Folder {
+        name: String,
+        path: PathBuf,
+        open: bool,
+        root: bool,
+    },
+    File {
+        name: String,
+        path: PathBuf,
+    },
+}
+
+impl ProjectNode {
+    pub fn new<P: AsRef<Path>>(path: P) -> io::Result<Self> {
+        let path = fs::canonicalize(path)?;
+        let name = path
+            .file_name()
+            .ok_or(io::Error::new(
+                io::ErrorKind::Other,
+                format!("path {:?} has no file name", path),
+            ))?
+            .to_str()
+            .ok_or(io::Error::new(
+                io::ErrorKind::Other,
+                format!("path {:?} is not valid UTF-8", path),
+            ))?
+            .to_string();
+        Ok(if path.is_dir() {
+            Self::Folder {
+                path,
+                name,
+                open: false,
+                root: false,
+            }
+        } else {
+            Self::File { path, name }
+        })
+    }
+
+    pub fn icon(&self, size: u16) -> Option<widget::icon::Icon> {
+        match self {
+            //TODO: different icon for project root?
+            Self::Folder { open, .. } => Some(if *open {
+                widget::icon::from_name("go-down-symbolic")
+                    .size(size)
+                    .into()
+            } else {
+                widget::icon::from_name("go-next-symbolic")
+                    .size(size)
+                    .into()
+            }),
+            Self::File { .. } => None,
+        }
+    }
+
+    pub fn name(&self) -> &str {
+        match self {
+            Self::Folder { name, .. } => name,
+            Self::File { name, .. } => name,
+        }
+    }
+}
+
+impl Ord for ProjectNode {
+    fn cmp(&self, other: &Self) -> Ordering {
+        match self {
+            // Folders are always before files
+            Self::Folder { .. } => {
+                if let Self::File { .. } = other {
+                    return Ordering::Less;
+                }
+            }
+            // Files are always after folders
+            Self::File { .. } => {
+                if let Self::Folder { .. } = other {
+                    return Ordering::Greater;
+                }
+            }
+        }
+        crate::localize::sorter().compare(self.name(), other.name())
+    }
+}
+
+impl PartialOrd for ProjectNode {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        Some(self.cmp(other))
+    }
+}