wip: titlebar

Cargo.lock

@@ -1317,6 +1317,7 @@ dependencies = [
  "smol",
  "state",
  "theme",
+ "titlebar",
  "tracing-subscriber",
  "ui",
 ]
@@ -6570,6 +6571,21 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
+[[package]]
+name = "titlebar"
+version = "0.3.0"
+dependencies = [
+ "anyhow",
+ "common",
+ "gpui",
+ "linicon",
+ "log",
+ "smallvec",
+ "theme",
+ "ui",
+ "windows 0.61.3",
+]
+
 [[package]]
 name = "tokio"
 version = "1.49.0"

crates/coop/Cargo.toml

@@ -29,6 +29,7 @@ icons = [
 [dependencies]
 assets = { path = "../assets" }
 ui = { path = "../ui" }
+titlebar = { path = "../titlebar" }
 dock = { path = "../dock" }
 theme = { path = "../theme" }
 common = { path = "../common" }

crates/coop/src/workspace.rs

@@ -13,6 +13,7 @@ use gpui::{
 use nostr_connect::prelude::*;
 use smallvec::{smallvec, SmallVec};
 use theme::{ActiveTheme, Theme, ThemeRegistry};
+use titlebar::TitleBar;
 use ui::button::{Button, ButtonVariants};
 use ui::modal::ModalButtonProps;
 use ui::{h_flex, v_flex, Root, Sizable, WindowExtension};
@@ -28,6 +29,9 @@ pub fn init(window: &mut Window, cx: &mut App) -> Entity<Workspace> {
 
 #[derive(Debug)]
 pub struct Workspace {
+    /// App's Title Bar
+    titlebar: Entity<TitleBar>,
+
     /// App's Dock Area
     dock: Entity<DockArea>,
 
@@ -38,6 +42,7 @@ pub struct Workspace {
 impl Workspace {
     fn new(window: &mut Window, cx: &mut Context<Self>) -> Self {
         let chat = ChatRegistry::global(cx);
+        let titlebar = cx.new(|_| TitleBar::new());
         let dock =
             cx.new(|cx| DockArea::new(window, cx).panel_style(dock::panel::PanelStyle::TabBar));
 
@@ -100,6 +105,7 @@ impl Workspace {
         });
 
         Self {
+            titlebar,
             dock,
             _subscriptions: subscriptions,
         }
@@ -278,8 +284,14 @@ impl Render for Workspace {
             .on_action(cx.listener(Self::on_keyring))
             .relative()
             .size_full()
+            .child(
+                v_flex()
+                    .size_full()
+                    // Title Bar
+                    .child(self.titlebar.clone())
                     // Dock
-            .child(self.dock.clone())
+                    .child(self.dock.clone()),
+            )
             // Notifications
             .children(notification_layer)
             // Modals

crates/theme/src/colors.rs

@@ -89,6 +89,10 @@ pub struct ThemeColors {
     pub drop_target_background: Hsla,
     pub cursor: Hsla,
     pub selection: Hsla,
+
+    // System
+    pub titlebar: Hsla,
+    pub titlebar_inactive: Hsla,
 }
 
 /// The default colors for the theme.
@@ -171,6 +175,9 @@ impl ThemeColors {
             drop_target_background: brand().dark_alpha().step_2(),
             cursor: hsl(200., 100., 50.),
             selection: hsl(200., 100., 50.).alpha(0.25),
+
+            titlebar: neutral().dark().step_2(),
+            titlebar_inactive: neutral().dark().step_3(),
         }
     }
 }

crates/titlebar/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "titlebar"
+version.workspace = true
+edition.workspace = true
+publish.workspace = true
+
+[dependencies]
+common = { path = "../common" }
+theme = { path = "../theme" }
+ui = { path = "../ui" }
+
+gpui.workspace = true
+smallvec.workspace = true
+anyhow.workspace = true
+log.workspace = true
+
+[target.'cfg(target_os = "windows")'.dependencies]
+windows = { version = "0.61", features = ["Wdk_System_SystemServices"] }
+
+[target.'cfg(target_os = "linux")'.dependencies]
+linicon = "2.3.0"

crates/titlebar/src/lib.rs

@@ -0,0 +1,181 @@
+use std::mem;
+
+use gpui::prelude::FluentBuilder;
+#[cfg(target_os = "linux")]
+use gpui::MouseButton;
+use gpui::{
+    div, px, AnyElement, Context, Decorations, Hsla, InteractiveElement as _, IntoElement,
+    ParentElement, Pixels, Render, StatefulInteractiveElement as _, Styled, Window,
+    WindowControlArea,
+};
+use smallvec::{smallvec, SmallVec};
+use theme::{ActiveTheme, PlatformKind, CLIENT_SIDE_DECORATION_ROUNDING};
+use ui::h_flex;
+
+#[cfg(target_os = "linux")]
+use crate::platforms::linux::LinuxWindowControls;
+use crate::platforms::windows::WindowsWindowControls;
+
+mod platforms;
+
+pub struct TitleBar {
+    children: SmallVec<[AnyElement; 2]>,
+    should_move: bool,
+}
+
+impl Default for TitleBar {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl TitleBar {
+    pub fn new() -> Self {
+        Self {
+            children: smallvec![],
+            should_move: false,
+        }
+    }
+
+    #[cfg(not(target_os = "windows"))]
+    pub fn height(window: &mut Window) -> Pixels {
+        (1.75 * window.rem_size()).max(px(34.))
+    }
+
+    #[cfg(target_os = "windows")]
+    pub fn height(_window: &mut Window) -> Pixels {
+        px(32.)
+    }
+
+    pub fn title_bar_color(&self, window: &mut Window, cx: &mut Context<Self>) -> Hsla {
+        if cfg!(any(target_os = "linux", target_os = "freebsd")) {
+            if window.is_window_active() && !self.should_move {
+                cx.theme().titlebar
+            } else {
+                cx.theme().titlebar_inactive
+            }
+        } else {
+            cx.theme().titlebar
+        }
+    }
+
+    pub fn set_children<T>(&mut self, children: T)
+    where
+        T: IntoIterator<Item = AnyElement>,
+    {
+        self.children = children.into_iter().collect();
+    }
+}
+
+impl ParentElement for TitleBar {
+    fn extend(&mut self, elements: impl IntoIterator<Item = AnyElement>) {
+        self.children.extend(elements)
+    }
+}
+
+impl Render for TitleBar {
+    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+        #[cfg(target_os = "linux")]
+        let supported_controls = window.window_controls();
+        let decorations = window.window_decorations();
+        let height = Self::height(window);
+        let color = self.title_bar_color(window, cx);
+        let children = mem::take(&mut self.children);
+
+        h_flex()
+            .window_control_area(WindowControlArea::Drag)
+            .h(height)
+            .w_full()
+            .map(|this| {
+                if window.is_fullscreen() {
+                    this.px_2()
+                } else if cx.theme().platform.is_mac() {
+                    this.pl(px(platforms::mac::TRAFFIC_LIGHT_PADDING))
+                        .pr_2()
+                        .when(children.len() <= 1, |this| {
+                            this.pr(px(platforms::mac::TRAFFIC_LIGHT_PADDING))
+                        })
+                } else {
+                    this.px_2()
+                }
+            })
+            .map(|this| match decorations {
+                Decorations::Server => this,
+                Decorations::Client { tiling } => this
+                    .when(!(tiling.top || tiling.right), |el| {
+                        el.rounded_tr(CLIENT_SIDE_DECORATION_ROUNDING)
+                    })
+                    .when(!(tiling.top || tiling.left), |el| {
+                        el.rounded_tl(CLIENT_SIDE_DECORATION_ROUNDING)
+                    }),
+            })
+            .bg(color)
+            .border_b_1()
+            .border_color(cx.theme().border)
+            .content_stretch()
+            .child(
+                div()
+                    .id("title-bar")
+                    .flex()
+                    .flex_row()
+                    .items_center()
+                    .justify_between()
+                    .w_full()
+                    .when(cx.theme().platform.is_mac(), |this| {
+                        this.on_click(|event, window, _| {
+                            if event.click_count() == 2 {
+                                window.titlebar_double_click();
+                            }
+                        })
+                    })
+                    .when(cx.theme().platform.is_linux(), |this| {
+                        this.on_click(|event, window, _| {
+                            if event.click_count() == 2 {
+                                window.zoom_window();
+                            }
+                        })
+                    })
+                    .children(children),
+            )
+            .when(!window.is_fullscreen(), |this| match cx.theme().platform {
+                PlatformKind::Linux => {
+                    #[cfg(target_os = "linux")]
+                    if matches!(decorations, Decorations::Client { .. }) {
+                        this.child(LinuxWindowControls::new(None))
+                            .when(supported_controls.window_menu, |this| {
+                                this.on_mouse_down(MouseButton::Right, move |ev, window, _| {
+                                    window.show_window_menu(ev.position)
+                                })
+                            })
+                            .on_mouse_move(cx.listener(move |this, _ev, window, _| {
+                                if this.should_move {
+                                    this.should_move = false;
+                                    window.start_window_move();
+                                }
+                            }))
+                            .on_mouse_down_out(cx.listener(move |this, _ev, _window, _cx| {
+                                this.should_move = false;
+                            }))
+                            .on_mouse_up(
+                                MouseButton::Left,
+                                cx.listener(move |this, _ev, _window, _cx| {
+                                    this.should_move = false;
+                                }),
+                            )
+                            .on_mouse_down(
+                                MouseButton::Left,
+                                cx.listener(move |this, _ev, _window, _cx| {
+                                    this.should_move = true;
+                                }),
+                            )
+                    } else {
+                        this
+                    }
+                    #[cfg(not(target_os = "linux"))]
+                    this
+                }
+                PlatformKind::Windows => this.child(WindowsWindowControls::new(height)),
+                PlatformKind::Mac => this,
+            })
+    }
+}

crates/titlebar/src/platforms/linux.rs

@@ -0,0 +1,221 @@
+use std::collections::HashMap;
+use std::sync::OnceLock;
+
+use gpui::prelude::FluentBuilder;
+use gpui::{
+    svg, Action, App, InteractiveElement, IntoElement, MouseButton, ParentElement, RenderOnce,
+    SharedString, StatefulInteractiveElement, Styled, Window,
+};
+use linicon::{lookup_icon, IconType};
+use theme::ActiveTheme;
+use ui::{h_flex, Icon, IconName, Sizable};
+
+#[derive(IntoElement)]
+pub struct LinuxWindowControls {
+    close_window_action: Option<Box<dyn Action>>,
+}
+
+impl LinuxWindowControls {
+    pub fn new(close_window_action: Option<Box<dyn Action>>) -> Self {
+        Self {
+            close_window_action,
+        }
+    }
+}
+
+impl RenderOnce for LinuxWindowControls {
+    fn render(self, window: &mut Window, _cx: &mut App) -> impl IntoElement {
+        h_flex()
+            .id("linux-window-controls")
+            .gap_2()
+            .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
+            .child(WindowControl::new(
+                LinuxControl::Minimize,
+                IconName::WindowMinimize,
+            ))
+            .child({
+                if window.is_maximized() {
+                    WindowControl::new(LinuxControl::Restore, IconName::WindowRestore)
+                } else {
+                    WindowControl::new(LinuxControl::Maximize, IconName::WindowMaximize)
+                }
+            })
+            .child(
+                WindowControl::new(LinuxControl::Close, IconName::WindowClose)
+                    .when_some(self.close_window_action, |this, close_action| {
+                        this.close_action(close_action)
+                    }),
+            )
+    }
+}
+
+#[derive(IntoElement)]
+pub struct WindowControl {
+    kind: LinuxControl,
+    fallback: IconName,
+    close_action: Option<Box<dyn Action>>,
+}
+
+impl WindowControl {
+    pub fn new(kind: LinuxControl, fallback: IconName) -> Self {
+        Self {
+            kind,
+            fallback,
+            close_action: None,
+        }
+    }
+
+    pub fn close_action(mut self, action: Box<dyn Action>) -> Self {
+        self.close_action = Some(action);
+        self
+    }
+
+    pub fn is_gnome(&self) -> bool {
+        matches!(detect_desktop_environment(), DesktopEnvironment::Gnome)
+    }
+}
+
+impl RenderOnce for WindowControl {
+    fn render(self, _window: &mut Window, cx: &mut App) -> impl IntoElement {
+        let is_gnome = self.is_gnome();
+
+        h_flex()
+            .id(self.kind.as_icon_name())
+            .group("")
+            .justify_center()
+            .items_center()
+            .rounded_full()
+            .size_6()
+            .when(is_gnome, |this| {
+                this.bg(cx.theme().ghost_element_background_alt)
+                    .hover(|this| this.bg(cx.theme().ghost_element_hover))
+                    .active(|this| this.bg(cx.theme().ghost_element_active))
+            })
+            .map(|this| {
+                if let Some(Some(path)) = linux_controls().get(&self.kind).cloned() {
+                    this.child(
+                        svg()
+                            .external_path(SharedString::from(path))
+                            .size_4()
+                            .text_color(cx.theme().text),
+                    )
+                } else {
+                    this.child(Icon::new(self.fallback).small().text_color(cx.theme().text))
+                }
+            })
+            .on_mouse_move(|_, _window, cx| cx.stop_propagation())
+            .on_click(move |_, window, cx| {
+                cx.stop_propagation();
+                match self.kind {
+                    LinuxControl::Minimize => window.minimize_window(),
+                    LinuxControl::Restore => window.zoom_window(),
+                    LinuxControl::Maximize => window.zoom_window(),
+                    LinuxControl::Close => cx.quit(),
+                }
+            })
+    }
+}
+
+static DE: OnceLock<DesktopEnvironment> = OnceLock::new();
+static LINUX_CONTROLS: OnceLock<HashMap<LinuxControl, Option<String>>> = OnceLock::new();
+
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub enum DesktopEnvironment {
+    Gnome,
+    Kde,
+    Unknown,
+}
+
+/// Detect the current desktop environment
+pub fn detect_desktop_environment() -> &'static DesktopEnvironment {
+    DE.get_or_init(|| {
+        // Try to use environment variables first
+        if let Ok(output) = std::env::var("XDG_CURRENT_DESKTOP") {
+            let desktop = output.to_lowercase();
+            if desktop.contains("gnome") {
+                return DesktopEnvironment::Gnome;
+            } else if desktop.contains("kde") {
+                return DesktopEnvironment::Kde;
+            }
+        }
+
+        // Fallback detection methods
+        if let Ok(output) = std::env::var("DESKTOP_SESSION") {
+            let session = output.to_lowercase();
+            if session.contains("gnome") {
+                return DesktopEnvironment::Gnome;
+            } else if session.contains("kde") || session.contains("plasma") {
+                return DesktopEnvironment::Kde;
+            }
+        }
+
+        DesktopEnvironment::Unknown
+    })
+}
+
+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy)]
+pub enum LinuxControl {
+    Minimize,
+    Restore,
+    Maximize,
+    Close,
+}
+
+impl LinuxControl {
+    pub fn as_icon_name(&self) -> &'static str {
+        match self {
+            LinuxControl::Close => "window-close",
+            LinuxControl::Minimize => "window-minimize",
+            LinuxControl::Maximize => "window-maximize",
+            LinuxControl::Restore => "window-restore",
+        }
+    }
+}
+
+fn linux_controls() -> &'static HashMap<LinuxControl, Option<String>> {
+    LINUX_CONTROLS.get_or_init(|| {
+        let mut icons = HashMap::new();
+        icons.insert(LinuxControl::Close, None);
+        icons.insert(LinuxControl::Minimize, None);
+        icons.insert(LinuxControl::Maximize, None);
+        icons.insert(LinuxControl::Restore, None);
+
+        let icon_names = [
+            (LinuxControl::Close, vec!["window-close", "dialog-close"]),
+            (
+                LinuxControl::Minimize,
+                vec!["window-minimize", "window-lower"],
+            ),
+            (
+                LinuxControl::Maximize,
+                vec!["window-maximize", "window-expand"],
+            ),
+            (
+                LinuxControl::Restore,
+                vec!["window-restore", "window-return"],
+            ),
+        ];
+
+        for (control, icon_names) in icon_names {
+            for icon_name in icon_names {
+                // Try GNOME-style naming first
+                let mut control_icon = lookup_icon(format!("{icon_name}-symbolic"))
+                    .find(|icon| matches!(icon, Ok(icon) if icon.icon_type == IconType::SVG));
+
+                // If not found, try KDE-style naming
+                if control_icon.is_none() {
+                    control_icon = lookup_icon(icon_name)
+                        .find(|icon| matches!(icon, Ok(icon) if icon.icon_type == IconType::SVG));
+                }
+
+                if let Some(Ok(icon)) = control_icon {
+                    icons
+                        .entry(control)
+                        .and_modify(|v| *v = Some(icon.path.to_string_lossy().to_string()));
+                }
+            }
+        }
+
+        icons
+    })
+}

crates/titlebar/src/platforms/mac.rs

@@ -0,0 +1,6 @@
+/// Use pixels here instead of a rem-based size because the macOS traffic
+/// lights are a static size, and don't scale with the rest of the UI.
+///
+/// Magic number: There is one extra pixel of padding on the left side due to
+/// the 1px border around the window on macOS apps.
+pub const TRAFFIC_LIGHT_PADDING: f32 = 80.;

crates/titlebar/src/platforms/mod.rs

@@ -0,0 +1,4 @@
+#[cfg(target_os = "linux")]
+pub mod linux;
+pub mod mac;
+pub mod windows;

crates/titlebar/src/platforms/windows.rs

@@ -0,0 +1,147 @@
+use gpui::prelude::FluentBuilder;
+use gpui::{
+    div, px, App, ElementId, Hsla, InteractiveElement, IntoElement, ParentElement, Pixels,
+    RenderOnce, Rgba, StatefulInteractiveElement, Styled, Window, WindowControlArea,
+};
+use theme::ActiveTheme;
+use ui::h_flex;
+
+#[derive(IntoElement)]
+pub struct WindowsWindowControls {
+    button_height: Pixels,
+}
+
+impl WindowsWindowControls {
+    pub fn new(button_height: Pixels) -> Self {
+        Self { button_height }
+    }
+
+    #[cfg(not(target_os = "windows"))]
+    fn get_font() -> &'static str {
+        "Segoe Fluent Icons"
+    }
+
+    #[cfg(target_os = "windows")]
+    fn get_font() -> &'static str {
+        use windows::Wdk::System::SystemServices::RtlGetVersion;
+
+        let mut version = unsafe { std::mem::zeroed() };
+        let status = unsafe { RtlGetVersion(&mut version) };
+
+        if status.is_ok() && version.dwBuildNumber >= 22000 {
+            "Segoe Fluent Icons"
+        } else {
+            "Segoe MDL2 Assets"
+        }
+    }
+}
+
+impl RenderOnce for WindowsWindowControls {
+    fn render(self, window: &mut Window, cx: &mut App) -> impl IntoElement {
+        let close_button_hover_color = Rgba {
+            r: 232.0 / 255.0,
+            g: 17.0 / 255.0,
+            b: 32.0 / 255.0,
+            a: 1.0,
+        };
+
+        let button_hover_color = cx.theme().ghost_element_hover;
+        let button_active_color = cx.theme().ghost_element_active;
+
+        div()
+            .id("windows-window-controls")
+            .font_family(Self::get_font())
+            .flex()
+            .flex_row()
+            .justify_center()
+            .content_stretch()
+            .max_h(self.button_height)
+            .min_h(self.button_height)
+            .child(WindowsCaptionButton::new(
+                "minimize",
+                WindowsCaptionButtonIcon::Minimize,
+                button_hover_color,
+                button_active_color,
+            ))
+            .child(WindowsCaptionButton::new(
+                "maximize-or-restore",
+                if window.is_maximized() {
+                    WindowsCaptionButtonIcon::Restore
+                } else {
+                    WindowsCaptionButtonIcon::Maximize
+                },
+                button_hover_color,
+                button_active_color,
+            ))
+            .child(WindowsCaptionButton::new(
+                "close",
+                WindowsCaptionButtonIcon::Close,
+                close_button_hover_color,
+                button_active_color,
+            ))
+    }
+}
+
+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy)]
+enum WindowsCaptionButtonIcon {
+    Minimize,
+    Restore,
+    Maximize,
+    Close,
+}
+
+#[derive(IntoElement)]
+struct WindowsCaptionButton {
+    id: ElementId,
+    icon: WindowsCaptionButtonIcon,
+    hover_background_color: Hsla,
+    active_background_color: Hsla,
+}
+
+impl WindowsCaptionButton {
+    pub fn new(
+        id: impl Into<ElementId>,
+        icon: WindowsCaptionButtonIcon,
+        hover_background_color: impl Into<Hsla>,
+        active_background_color: impl Into<Hsla>,
+    ) -> Self {
+        Self {
+            id: id.into(),
+            icon,
+            hover_background_color: hover_background_color.into(),
+            active_background_color: active_background_color.into(),
+        }
+    }
+}
+
+impl RenderOnce for WindowsCaptionButton {
+    fn render(self, _window: &mut Window, _cx: &mut App) -> impl IntoElement {
+        h_flex()
+            .id(self.id)
+            .justify_center()
+            .content_center()
+            .occlude()
+            .w(px(36.))
+            .h_full()
+            .text_size(px(10.0))
+            .hover(|style| style.bg(self.hover_background_color))
+            .active(|style| style.bg(self.active_background_color))
+            .map(|this| match self.icon {
+                WindowsCaptionButtonIcon::Close => {
+                    this.window_control_area(WindowControlArea::Close)
+                }
+                WindowsCaptionButtonIcon::Maximize | WindowsCaptionButtonIcon::Restore => {
+                    this.window_control_area(WindowControlArea::Max)
+                }
+                WindowsCaptionButtonIcon::Minimize => {
+                    this.window_control_area(WindowControlArea::Min)
+                }
+            })
+            .child(match self.icon {
+                WindowsCaptionButtonIcon::Minimize => "\u{e921}",
+                WindowsCaptionButtonIcon::Restore => "\u{e923}",
+                WindowsCaptionButtonIcon::Maximize => "\u{e922}",
+                WindowsCaptionButtonIcon::Close => "\u{e8bb}",
+            })
+    }
+}