Merge branch 'main' into resize-overhaul

15 files changed, 226 insertions, 30 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ae5491b68..719b09d0f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 * Fix(ui): session mode should be disabled in locked mode (https://github.com/zellij-org/zellij/pull/548)
 * Add option to start in arbitrary modes (https://github.com/zellij-org/zellij/pull/513)
 * Attaching to a session respects the `default_mode` setting of the client (https://github.com/zellij-org/zellij/pull/549)
+* Add option to specify a color theme in the config (https://github.com/zellij-org/zellij/pull/550)
+* Fix config options to not depend on `simplified_ui` (https://github.com/zellij-org/zellij/pull/556)
+* Don't rename `unnamed` tabs upon deletion of other tabs (https://github.com/zellij-org/zellij/pull/554)
+* Add layout to disable the status bar (https://github.com/zellij-org/zellij/pull/555)
 
 ## [0.12.1] - 2021-05-28
 * HOTFIX: fix Zellij not responding to input on certain terminals (https://github.com/zellij-org/zellij/issues/538)
diff --git a/assets/layouts/disable-status-bar.yaml b/assets/layouts/disable-status-bar.yaml
new file mode 100644
index 000000000..fd9c97da6
--- /dev/null
+++ b/assets/layouts/disable-status-bar.yaml
@@ -0,0 +1,8 @@
+---
+direction: Horizontal
+parts:
+  - direction: Vertical
+    split_size:
+      Fixed: 1
+    plugin: tab-bar
+  - direction: Vertical
diff --git a/default-plugins/tab-bar/src/tab.rs b/default-plugins/tab-bar/src/tab.rs
index fb8e377d1..7e83e85bb 100644
--- a/default-plugins/tab-bar/src/tab.rs
+++ b/default-plugins/tab-bar/src/tab.rs
@@ -46,11 +46,7 @@ pub fn tab_style(
     capabilities: PluginCapabilities,
 ) -> LinePart {
     let separator = tab_separator(capabilities);
-    let mut tab_text = if text.is_empty() {
-        format!("Tab #{}", position + 1)
-    } else {
-        text
-    };
+    let mut tab_text = text;
     if is_sync_panes_active {
         tab_text.push_str(" (Sync)");
     }
diff --git a/docs/MANPAGE.md b/docs/MANPAGE.md
index 8f9f45b5c..2f78b8312 100644
--- a/docs/MANPAGE.md
+++ b/docs/MANPAGE.md
@@ -13,6 +13,9 @@ and screen), but this is merely its infrastructure layer.
 Zellij includes a layout system, and a plugin system allowing one to create
 plugins in any language that compiles to WebAssembly.
 
+To list currently running sessions run: `zellij list-sessions`
+To attach to a currently running session run: `zellij attach [session-name]`
+
 OPTIONS
 =======
 
@@ -24,9 +27,12 @@ CONFIGURATION
 Zellij looks for configuration file in the following order:
 
 1. the file provided with _--config_
-2. under the path provided in *ZELLIJ_CONFIG* environment variable
+2. under the path provided in *ZELLIJ_CONFIG_FILE* environment variable
 3. the default location (see FILES section)
+4. the system location
 
+Run `zellij setup --check` in order to see possible issues with the
+configuration.
 
 LAYOUTS
 =======
@@ -85,7 +91,7 @@ KEYBINDINGS
 ===========
 
 Zellij comes with a default set of keybindings which aims to fit as many users
-as possible but that behaviour can be overidden or modified in user
+as possible but that behaviour can be overridden or modified in user
 configuration files. The information about bindings is available in the
 _keybinds_ section of configuration. For example, to introduce a keybinding that
 will create a new tab and go to tab 1 after pressing 'c' one can write:
@@ -147,6 +153,8 @@ ACTIONS
   Right, Up, Down).
 * __ScrollUp__ - scrolls up 1 line in the focused pane.
 * __ScrollDown__ - scrolls down 1 line in the focused pane.
+* __PageScrollUp__ - scrolls up 1 page in the focused pane.
+* __PageScrollDown__ - scrolls down 1 page in the focused pane.
 * __ToggleFocusFullscreen__ - toggles between fullscreen focus pane and normal
   layout.
 * __NewPane: <Direction\>__ - opens a new pane in the specified direction (Left,
@@ -157,6 +165,10 @@ ACTIONS
 * __GoToPreviousTab__ - goes to previous tab.
 * __CloseTab__ - closes current tab.
 * __GoToTab: <Index\>__ - goes to the tab with the specified index number.
+* __Detach__ - detach session and exit.
+* __ToggleActiveSyncTab__ - toggle between sending text commands to all panes
+  on the current tab and normal mode.
+
 
 KEYS
 ----
@@ -190,8 +202,45 @@ MODES
   moving, closing).
 * __resize__ - allows resizing of the focused pane.
 * __scroll__ - allows scrolling within the focused pane.
-* __RenameTab__ - is a "hidden" mode that can be passed to _SwitchToMode_
+* __renametab__ - is a "hidden" mode that can be passed to _SwitchToMode_
   action. It will trigger renaming of a tab.
+* __session__ - allows detaching from a session.
+
+
+Theme
+=====
+A color theme can be defined either in truecolor, or 256 format.
+Truecolor:
+```
+fg: [0, 0, 0]
+```
+256:
+```
+fg: 0
+```
+The color theme can be specified in the following way:
+```
+themes:
+  default:
+    fg: [0,0,0]
+    bg: [0,0,0]
+    black: [0,0,0]
+    red: [0,0,0]
+    green: [0,0,0]
+    yellow: [0,0,0]
+    blue: [0,0,0]
+    magenta: [0,0,0]
+    cyan: [0,0,0]
+    white: [0,0,0]
+    orange: [0,0,0]
+```
+
+If the theme is called `default`, then zellij will pick it on startup.
+To specify a different theme, run zellij with:
+```
+zellij options --theme [NAME]
+```
+or put the name in the configuration file with `theme: [NAME]`.
 
 PLUGINS
 =======
@@ -210,8 +259,11 @@ Default user configuration file location:
 
 ENVIRONMENT
 ===========
-ZELLIJ_CONFIG
-  Path of Zellij config to load. 
+ZELLIJ_CONFIG_FILE
+  Path of Zellij config to load.
+ZELLIJ_CONFIG_DIR
+  Path of the Zellij config directory.
+
 
 
 NOTES
diff --git a/src/install.rs b/src/install.rs
index e9f58a8b9..4fb693763 100644
--- a/src/install.rs
+++ b/src/install.rs
@@ -19,6 +19,7 @@ pub(crate) fn populate_data_dir(data_dir: &Path) {
     let mut assets = asset_map! {
         "assets/layouts/default.yaml" => "layouts/default.yaml",
         "assets/layouts/strider.yaml" => "layouts/strider.yaml",
+        "assets/layouts/disable-status-bar.yaml" => "layouts/disable-status-bar.yaml",
     };
     assets.extend(asset_map! {
         "assets/plugins/status-bar.wasm" => "plugins/status-bar.wasm",
diff --git a/zellij-client/src/lib.rs b/zellij-client/src/lib.rs
index bd46c90b7..ece154ea7 100644
--- a/zellij-client/src/lib.rs
+++ b/zellij-client/src/lib.rs
@@ -91,7 +91,14 @@ pub fn start_client(
     let take_snapshot = "\u{1b}[?1049h";
     let bracketed_paste = "\u{1b}[?2004h";
     os_input.unset_raw_mode(0);
-    let palette = os_input.load_palette();
+    let config_options = Options::from_cli(&config.options, opts.command.clone());
+    let palette = config.themes.clone().map_or_else(
+        || os_input.load_palette(),
+        |t| {
+            t.theme_config(&config_options)
+                .unwrap_or_else(|| os_input.load_palette())
+        },
+    );
     let _ = os_input
         .get_stdout_writer()
         .write(take_snapshot.as_bytes())
@@ -102,8 +109,6 @@ pub fn start_client(
         .unwrap();
     std::env::set_var(&"ZELLIJ", "0");
 
-    let config_options = Options::from_cli(&config.options, opts.command.clone());
-
     let full_screen_ws = os_input.get_terminal_size_using_fd(0);
     let client_attributes = ClientAttributes {
         position_and_size: full_screen_ws,
diff --git a/zellij-server/src/lib.rs b/zellij-server/src/lib.rs
index 6e6392c2e..4dff7838c 100644
--- a/zellij-server/src/lib.rs
+++ b/zellij-server/src/lib.rs
@@ -15,7 +15,7 @@ use std::path::PathBuf;
 use std::sync::{Arc, Mutex, RwLock};
 use std::thread;
 use wasmer::Store;
-use zellij_tile::data::{Event, PluginCapabilities};
+use zellij_tile::data::{Event, Palette, PluginCapabilities};
 
 use crate::{
     os_input_output::ServerOsApi,
@@ -84,6 +84,7 @@ impl ErrorInstruction for ServerInstruction {
 pub(crate) struct SessionMetaData {
     pub senders: ThreadSenders,
     pub capabilities: PluginCapabilities,
+    pub palette: Palette,
     screen_thread: Option<thread::JoinHandle<()>>,
     pty_thread: Option<thread::JoinHandle<()>>,
     wasm_thread: Option<thread::JoinHandle<()>>,
@@ -403,6 +404,7 @@ fn init_session(
             to_server: None,
         },
         capabilities,
+        palette: client_attributes.palette,
         screen_thread: Some(screen_thread),
         pty_thread: Some(pty_thread),
         wasm_thread: Some(wasm_thread),
diff --git a/zellij-server/src/route.rs b/zellij-server/src/route.rs
index 673f563a5..285f333cb 100644
--- a/zellij-server/src/route.rs
+++ b/zellij-server/src/route.rs
@@ -18,7 +18,7 @@ use zellij_utils::{
 fn route_action(
     action: Action,
     session: &SessionMetaData,
-    os_input: &dyn ServerOsApi,
+    _os_input: &dyn ServerOsApi,
     to_server: &SenderWithContext<ServerInstruction>,
 ) -> bool {
     let mut should_break = false;
@@ -34,7 +34,7 @@ fn route_action(
                 .unwrap();
         }
         Action::SwitchToMode(mode) => {
-            let palette = os_input.load_palette();
+            let palette = session.palette;
             // TODO: use the palette from the client and remove it from the server os api
             // this is left here as a stop gap measure until we shift some code around
             // to allow for this
diff --git a/zellij-server/src/tab.rs b/zellij-server/src/tab.rs
index 45f386c72..0ef616b4d 100644
--- a/zellij-server/src/tab.rs
+++ b/zellij-server/src/tab.rs
@@ -246,6 +246,13 @@ impl Tab {
         } else {
             BTreeMap::new()
         };
+
+        let name = if name.is_empty() {
+            format!("Tab #{}", position + 1)
+        } else {
+            name
+        };
+
         Tab {
             index,
             position,
diff --git a/zellij-tile/src/data.rs b/zellij-tile/src/data.rs
index 3bd926ca6..4e4b68236 100644
--- a/zellij-tile/src/data.rs
+++ b/zellij-tile/src/data.rs
@@ -72,13 +72,13 @@ impl Default for InputMode {
 }
 
 #[derive(Clone, Copy, Debug, Serialize, Deserialize, PartialEq, Eq, Hash)]
-pub enum Theme {
+pub enum ThemeHue {
     Light,
     Dark,
 }
-impl Default for Theme {
-    fn default() -> Theme {
-        Theme::Dark
+impl Default for ThemeHue {
+    fn default() -> ThemeHue {
+        ThemeHue::Dark
     }
 }
 
@@ -105,6 +105,7 @@ impl FromStr for InputMode {
             "tab" => Ok(InputMode::Tab),
             "scroll" => Ok(InputMode::Scroll),
             "renametab" => Ok(InputMode::RenameTab),
+            "session" => Ok(InputMode::Session),
             e => Err(e.to_string().into()),
         }
     }
@@ -123,7 +124,7 @@ impl Default for PaletteSource {
 #[derive(Clone, Copy, Debug, Serialize, Deserialize, PartialEq, Eq, Hash, Default)]
 pub struct Palette {
     pub source: PaletteSource,
-    pub theme: Theme,
+    pub theme_hue: ThemeHue,
     pub fg: PaletteColor,
     pub bg: PaletteColor,
     pub black: PaletteColor,
diff --git a/zellij-utils/src/input/config.rs b/zellij-utils/src/input/config.rs
index c4cf0cd72..56e333f46 100644
--- a/zellij-utils/src/input/config.rs
+++ b/zellij-utils/src/input/config.rs
@@ -7,6 +7,7 @@ use std::path::{Path, PathBuf};
 
 use super::keybinds::{Keybinds, KeybindsFromYaml};
 use super::options::Options;
+use super::theme::ThemesFromYaml;
 use crate::cli::{CliArgs, Command};
 use crate::setup;
 
@@ -23,6 +24,7 @@ pub struct ConfigFromYaml {
     #[serde(flatten)]
     pub options: Option<Options>,
     pub keybinds: Option<KeybindsFromYaml>,
+    pub themes: Option<ThemesFromYaml>,
 }
 
 /// Main configuration.
@@ -30,6 +32,7 @@ pub struct ConfigFromYaml {
 pub struct Config {
     pub keybinds: Keybinds,
     pub options: Options,
+    pub themes: Option<ThemesFromYaml>,
 }
 
 #[derive(Debug)]
@@ -48,7 +51,13 @@ impl Default for Config {
     fn default() -> Self {
         let keybinds = Keybinds::default();
         let options = Options::default();
-        Config { keybinds, options }
+        let themes = None;
+
+        Config {
+            keybinds,
+            options,
+            themes,
+        }
     }
 }
 
@@ -90,7 +99,13 @@ impl Config {
         let config_from_yaml: ConfigFromYaml = serde_yaml::from_str(&yaml_config)?;
         let keybinds = Keybinds::get_default_keybinds_with_config(config_from_yaml.keybinds);
         let options = Options::from_yaml(config_from_yaml.options);
-        Ok(Config { keybinds, options })
+        let themes = config_from_yaml.themes;
+
+        Ok(Config {
+            keybinds,
+            options,
+            themes,
+        })
     }
 
     /// Deserializes from given path.
diff --git a/zellij-utils/src/input/mod.rs b/zellij-utils/src/input/mod.rs
index 068e22bc4..93a1d2255 100644
--- a/zellij-utils/src/input/mod.rs
+++ b/zellij-utils/src/input/mod.rs
@@ -4,6 +4,7 @@ pub mod actions;
 pub mod config;
 pub mod keybinds;
 pub mod options;
+pub mod theme;
 
 use termion::input::TermRead;
 use zellij_tile::data::{InputMode, Key, ModeInfo, Palette, PluginCapabilities};
diff --git a/zellij-utils/src/input/options.rs b/zellij-utils/src/input/options.rs
index 3476c2fb9..04bca6127 100644
--- a/zellij-utils/src/input/options.rs
+++ b/zellij-utils/src/input/options.rs
@@ -11,8 +11,12 @@ pub struct Options {
     /// Allow plugins to use a more simplified layout
     /// that is compatible with more fonts
     #[structopt(long)]
+    #[serde(default)]
     pub simplified_ui: bool,
-    /// Allows to specify the default mode
+    /// Set the default theme
+    #[structopt(long)]
+    pub theme: Option<String>,
+    /// Set the default mode
     #[structopt(long)]
     pub default_mode: Option<InputMode>,
 }
@@ -41,8 +45,14 @@ impl Options {
             other => other,
         };
 
+        let theme = match other.theme {
+            None => self.theme.clone(),
+            other => other,
+        };
+
         Options {
             simplified_ui,
+            theme,
             default_mode,
         }
     }
diff --git a/zellij-utils/src/input/theme.rs b/zellij-utils/src/input/theme.rs
new file mode 100644
index 000000000..35bd3d87b
--- /dev/null
+++ b/zellij-utils/src/input/theme.rs
@@ -0,0 +1,94 @@
+use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
+
+use super::options::Options;
+use zellij_tile::data::{Palette, PaletteColor};
+
+/// Intermediate deserialization of themes
+#[derive(Debug, Clone, PartialEq, Deserialize, Serialize)]
+pub struct ThemesFromYaml(HashMap<String, Theme>);
+
+#[derive(Debug, Clone, PartialEq, Deserialize, Serialize)]
+struct Theme {
+    #[serde(flatten)]
+    palette: PaletteFromYaml,
+}
+
+/// Intermediate deserialization struct
+#[derive(Clone, Copy, Debug, Serialize, Deserialize, PartialEq, Eq, Hash, Default)]
+pub struct PaletteFromYaml {
+    pub fg: PaletteColorFromYaml,
+    pub bg: PaletteColorFromYaml,
+    pub black: PaletteColorFromYaml,
+    pub red: PaletteColorFromYaml,
+    pub green: PaletteColorFromYaml,
+    pub yellow: PaletteColorFromYaml,
+    pub blue: PaletteColorFromYaml,
+    pub magenta: PaletteColorFromYaml,
+    pub cyan: PaletteColorFromYaml,
+    pub white: PaletteColorFromYaml,
+    pub orange: PaletteColorFromYaml,
+}
+
+/// Intermediate deserialization enum
+// This is here in order to make the untagged enum work
+#[derive(Clone, Copy, Debug, Serialize, Deserialize, PartialEq, Eq, Hash)]
+#[serde(untagged)]
+pub enum PaletteColorFromYaml {
+    Rgb((u8, u8, u8)),
+    EightBit(u8),
+}
+
+impl Default for PaletteColorFromYaml {
+    fn default() -> Self {
+        PaletteColorFromYaml::EightBit(0)
+    }
+}
+
+impl ThemesFromYaml {
+    pub fn theme_config(self, opts: &Options) -> Option<Palette> {
+        let mut from_yaml = self;
+        match &opts.theme {
+            Some(theme) => from_yaml.from_default_theme(theme.to_owned()),
+            None => from_yaml.from_default_theme("default".into()),
+        }
+    }
+
+    fn get_theme(&mut self, theme: String) -> Option<Theme> {
+        self.0.remove(&theme)
+    }
+
+    fn from_default_theme(&mut self, theme: String) -> Option<Palette> {
+        self.clone()
+            .get_theme(theme)
+            .map(|t| Palette::from(t.palette))
+    }
+}
+
+impl From<PaletteFromYaml> for Palette {
+    fn from(yaml: PaletteFromYaml) -> Self {
+        Palette {
+            fg: yaml.fg.into(),
+            bg: yaml.fg.into(),
+            black: yaml.black.into(),
+            red: yaml.red.into(),
+            green: yaml.green.into(),
+            yellow: yaml.yellow.into(),
+            blue: yaml.blue.into(),
+            magenta: yaml.magenta.into(),
+            cyan: yaml.cyan.into(),
+            white: yaml.white.into(),
+            orange: yaml.orange.into(),
+            ..Palette::default()
+        }
+    }
+}
+
+impl From<PaletteColorFromYaml> for PaletteColor {
+    fn from(yaml: PaletteColorFromYaml) -> Self {
+        match yaml {
+            PaletteColorFromYaml::Rgb(color) => PaletteColor::Rgb(color),
+            PaletteColorFromYaml::EightBit(color) => PaletteColor::EightBit(color),
+        }
+    }
+}
diff --git a/zellij-utils/src/shared.rs b/zellij-utils/src/shared.rs
index bc8b67711..a741cc10b 100644
--- a/zellij-utils/src/shared.rs
+++ b/zellij-utils/src/shared.rs
@@ -8,7 +8,7 @@ use colors_transform::{Color, Rgb};
 use std::os::unix::fs::PermissionsExt;
 use std::path::Path;
 use std::{fs, io};
-use zellij_tile::data::{Palette, PaletteColor, PaletteSource, Theme};
+use zellij_tile::data::{Palette, PaletteColor, PaletteSource, ThemeHue};
 
 const UNIX_PERMISSIONS: u32 = 0o700;
 
@@ -64,7 +64,7 @@ pub fn _hex_to_rgb(hex: &str) -> (u8, u8, u8) {
 pub fn default_palette() -> Palette {
     Palette {
         source: PaletteSource::Default,
-        theme: Theme::Dark,
+        theme_hue: ThemeHue::Dark,
         fg: PaletteColor::EightBit(colors::BRIGHT_GRAY),
         bg: PaletteColor::EightBit(colors::GRAY),
         black: PaletteColor::EightBit(colors::BLACK),
@@ -80,7 +80,7 @@ pub fn default_palette() -> Palette {
 }
 
 // Dark magic
-pub fn _detect_theme(bg: PaletteColor) -> Theme {
+pub fn _detect_theme_hue(bg: PaletteColor) -> ThemeHue {
     match bg {
         PaletteColor::Rgb((r, g, b)) => {
             // HSP, P stands for perceived brightness
@@ -89,11 +89,11 @@ pub fn _detect_theme(bg: PaletteColor) -> Theme {
                 + 0.114 * (b as f64 * b as f64))
                 .sqrt();
             match hsp > 127.5 {
-                true => Theme::Light,
-                false => Theme::Dark,
+                true => ThemeHue::Light,
+                false => ThemeHue::Dark,
             }
         }
-        _ => Theme::Dark,
+        _ => ThemeHue::Dark,
     }
 }