Split pane chrome out of splits.rs into chrome::split_pane

splits.rs had grown to 551 lines after adding the design's pane header.
Move the header renderer, the close glyph, the URL helpers, and the
compact-canvas placeholder into chrome::split_pane so splits.rs is back
to a 422-line action + render orchestrator and the new helpers stay
under their own 150-line file.

Behaviour preserved: the pane click still selects the tab, the close
glyph still selects+closes, and pane_host/path/secure still derive from
the same UrlText fields.

crates/ely_app/src/shell/chrome/mod.rs

@@ -3,6 +3,7 @@ pub(crate) mod home;
 pub(crate) mod settings_layout;
 pub(crate) mod sidebar;
 pub(crate) mod sidebar_header;
+pub(crate) mod split_pane;
 pub(crate) mod topbar;
 pub(crate) mod wallpaper;
 
@@ -11,5 +12,9 @@ pub(crate) use home::render_home_page;
 pub(crate) use settings_layout::render_settings_landing;
 pub(crate) use sidebar::{PANEL_BG, panel_shadow};
 pub(crate) use sidebar_header::render_sidebar_header;
+pub(crate) use split_pane::{
+    pane_host_label, pane_path_label, pane_url_is_secure, render_compact_split_canvas,
+    render_split_pane_header,
+};
 pub(crate) use topbar::render_topbar;
 pub(crate) use wallpaper::{WallpaperTheme, render_wallpaper};

crates/ely_app/src/shell/chrome/split_pane.rs

@@ -0,0 +1,143 @@
+use ely_design_system::colors;
+use ely_domain::{BrowserTab, TabId};
+use gpui::{
+    AnyElement, Context, FontWeight, InteractiveElement, IntoElement, ParentElement, SharedString,
+    StatefulInteractiveElement, Styled, div, px, rgb, rgba,
+};
+use gpui_component::IconName;
+
+use crate::shell::ElyShell;
+
+pub(crate) fn render_split_pane_header(
+    host: String,
+    path: String,
+    secure: bool,
+    dot_color: u32,
+    close_tab_id: TabId,
+    cx: &mut Context<ElyShell>,
+) -> AnyElement {
+    let lock_or_globe = if secure { IconName::Search } else { IconName::Globe };
+
+    div()
+        .h(px(30.0))
+        .px(px(10.0))
+        .gap(px(8.0))
+        .flex()
+        .items_center()
+        .flex_shrink_0()
+        .border_b_1()
+        .border_color(rgb(colors::HAIRLINE))
+        .bg(rgb(0xf6f4ef))
+        .child(div().size(px(8.0)).rounded_full().bg(rgb(dot_color)))
+        .child(
+            div()
+                .text_color(rgb(colors::INK_3))
+                .text_size(px(11.0))
+                .child(lock_or_globe),
+        )
+        .child(
+            div()
+                .text_size(px(11.0))
+                .font_weight(FontWeight(500.0))
+                .text_color(rgb(colors::INK))
+                .child(host),
+        )
+        .child(
+            div()
+                .flex_1()
+                .min_w_0()
+                .truncate()
+                .text_size(px(11.0))
+                .text_color(rgb(colors::INK_4))
+                .child(path),
+        )
+        .child(render_close_glyph(close_tab_id, cx))
+        .into_any_element()
+}
+
+fn render_close_glyph(close_tab_id: TabId, cx: &mut Context<ElyShell>) -> AnyElement {
+    let id = format!("split-pane-close-{}", close_tab_id.as_str());
+    div()
+        .id(SharedString::from(id))
+        .text_color(rgb(colors::INK_4))
+        .text_size(px(11.0))
+        .cursor_pointer()
+        .hover(|style| style.text_color(rgb(colors::INK)))
+        .on_click(cx.listener(move |shell, _, window, cx| {
+            shell.select_tab(&close_tab_id, window, cx);
+            shell.close_active_tab(window, cx);
+        }))
+        .child(IconName::Close)
+        .into_any_element()
+}
+
+pub(crate) fn pane_host_label(tab: &BrowserTab) -> String {
+    tab.url()
+        .host()
+        .map(|host| host.to_string())
+        .unwrap_or_else(|| tab.title().to_string())
+}
+
+pub(crate) fn pane_path_label(tab: &BrowserTab) -> String {
+    let url = tab.url().as_str();
+    let path_start = url.find("://").map(|prefix| prefix + 3).unwrap_or(0);
+    let from_path = &url[path_start..];
+    match from_path.find('/') {
+        Some(slash) => from_path[slash..].to_string(),
+        None => String::new(),
+    }
+}
+
+pub(crate) fn pane_url_is_secure(tab: &BrowserTab) -> bool {
+    let url = tab.url().as_str();
+    url.starts_with("https://") || url.starts_with("ely://")
+}
+
+pub(crate) fn split_canvas_status(tab: &BrowserTab) -> String {
+    if tab.url().as_str() == "ely://new-tab" {
+        "Ready".to_string()
+    } else {
+        tab.display_url()
+    }
+}
+
+pub(crate) fn render_compact_split_canvas(tab: &BrowserTab) -> AnyElement {
+    div()
+        .flex_1()
+        .min_h_0()
+        .p(px(8.0))
+        .child(
+            div()
+                .size_full()
+                .min_h_0()
+                .rounded(px(10.0))
+                .bg(rgba(colors::GLASS_2))
+                .px(px(10.0))
+                .py(px(8.0))
+                .gap(px(8.0))
+                .flex()
+                .items_center()
+                .child(div().text_color(rgb(colors::INK_4)).child(IconName::Globe))
+                .child(
+                    div()
+                        .min_w_0()
+                        .flex()
+                        .flex_col()
+                        .child(
+                            div()
+                                .truncate()
+                                .text_size(px(13.0))
+                                .font_weight(FontWeight(500.0))
+                                .child(tab.title().to_string()),
+                        )
+                        .child(
+                            div()
+                                .truncate()
+                                .text_size(px(11.0))
+                                .text_color(rgb(colors::INK_4))
+                                .child(split_canvas_status(tab)),
+                        ),
+                ),
+        )
+        .into_any_element()
+}

crates/ely_app/src/shell/splits.rs

@@ -10,6 +10,10 @@ use gpui_component::{
     button::{Button, ButtonVariants},
 };
 
+use super::chrome::{
+    pane_host_label, pane_path_label, pane_url_is_secure, render_compact_split_canvas,
+    render_split_pane_header,
+};
 use super::{ElyShell, ShellState};
 use crate::SplitRight;
 
@@ -208,7 +212,7 @@ impl ElyShell {
             .on_click(cx.listener(move |shell, _, window, cx| {
                 shell.select_tab(&tab_id, window, cx);
             }))
-            .child(self.render_split_pane_header(host, path, secure, dot_color, close_tab_id, cx))
+            .child(render_split_pane_header(host, path, secure, dot_color, close_tab_id, cx))
             .child(div().flex_1().min_h_0().overflow_hidden().child(if compact_canvas {
                 render_compact_split_canvas(tab)
             } else {
@@ -217,74 +221,6 @@ impl ElyShell {
             .into_any_element()
     }
 
-    fn render_split_pane_header(
-        &mut self,
-        host: String,
-        path: String,
-        secure: bool,
-        dot_color: u32,
-        close_tab_id: ely_domain::TabId,
-        cx: &mut Context<Self>,
-    ) -> AnyElement {
-        let lock_or_globe = if secure { IconName::Search } else { IconName::Globe };
-
-        div()
-            .h(px(30.0))
-            .px(px(10.0))
-            .gap(px(8.0))
-            .flex()
-            .items_center()
-            .flex_shrink_0()
-            .border_b_1()
-            .border_color(rgb(colors::HAIRLINE))
-            .bg(rgb(0xf6f4ef))
-            .child(
-                div()
-                    .size(px(8.0))
-                    .rounded_full()
-                    .bg(rgb(dot_color)),
-            )
-            .child(
-                div()
-                    .text_color(rgb(colors::INK_3))
-                    .text_size(px(11.0))
-                    .child(lock_or_globe),
-            )
-            .child(
-                div()
-                    .text_size(px(11.0))
-                    .font_weight(gpui::FontWeight(500.0))
-                    .text_color(rgb(colors::INK))
-                    .child(host),
-            )
-            .child(
-                div()
-                    .flex_1()
-                    .min_w_0()
-                    .truncate()
-                    .text_size(px(11.0))
-                    .text_color(rgb(colors::INK_4))
-                    .child(path),
-            )
-            .child(
-                div()
-                    .id(SharedString::from(format!(
-                        "split-pane-close-{}",
-                        close_tab_id.as_str()
-                    )))
-                    .text_color(rgb(colors::INK_4))
-                    .text_size(px(11.0))
-                    .cursor_pointer()
-                    .hover(|style| style.text_color(rgb(colors::INK)))
-                    .on_click(cx.listener(move |shell, _, window, cx| {
-                        shell.select_tab(&close_tab_id, window, cx);
-                        shell.close_active_tab(window, cx);
-                    }))
-                    .child(IconName::Close),
-            )
-            .into_any_element()
-    }
-
     fn render_split_controls(
         &mut self,
         active_axis: &SplitAxis,
@@ -484,68 +420,3 @@ fn active_split_layout<'a>(
     snapshot.split_layouts.iter().find(|layout| layout.id() == split_id)
 }
 
-fn render_compact_split_canvas(tab: &BrowserTab) -> AnyElement {
-    div()
-        .flex_1()
-        .min_h_0()
-        .p_2()
-        .child(
-            div()
-                .size_full()
-                .min_h_0()
-                .rounded(px(10.0))
-                .bg(rgba(colors::GLASS_2))
-                .px(px(10.0))
-                .py(px(8.0))
-                .gap(px(8.0))
-                .flex()
-                .items_center()
-                .child(div().text_color(rgb(colors::INK_4)).child(IconName::Globe))
-                .child(
-                    div()
-                        .min_w_0()
-                        .flex()
-                        .flex_col()
-                        .child(
-                            div()
-                                .truncate()
-                                .text_size(px(13.0))
-                                .font_weight(gpui::FontWeight(500.0))
-                                .child(tab.title().to_string()),
-                        )
-                        .child(
-                            div()
-                                .truncate()
-                                .text_size(px(11.0))
-                                .text_color(rgb(colors::INK_4))
-                                .child(split_canvas_status(tab)),
-                        ),
-                ),
-        )
-        .into_any_element()
-}
-
-fn split_canvas_status(tab: &BrowserTab) -> String {
-    if tab.url().as_str() == "ely://new-tab" { "Ready".to_string() } else { tab.display_url() }
-}
-
-fn pane_host_label(tab: &BrowserTab) -> String {
-    tab.url()
-        .host()
-        .map(|host| host.to_string())
-        .unwrap_or_else(|| tab.title().to_string())
-}
-
-fn pane_path_label(tab: &BrowserTab) -> String {
-    let url = tab.url().as_str();
-    let path_start = url.find("://").map(|prefix| prefix + 3).unwrap_or(0);
-    let from_path = &url[path_start..];
-    match from_path.find('/') {
-        Some(slash) => from_path[slash..].to_string(),
-        None => String::new(),
-    }
-}
-
-fn pane_url_is_secure(tab: &BrowserTab) -> bool {
-    tab.url().as_str().starts_with("https://") || tab.url().as_str().starts_with("ely://")
-}