feat(rofi): shared wallpaper header for the searchable layouts

The ssh menu's banner, title plate and plated search bar move into
header.rasi, which ssh.rasi, list.rasi and grid.rasi import, so every
searchable menu gets the same header with its -p as the title. The
banner's @WPAPER@ now lives in header.rasi, so that file is generated
and ssh.rasi is linked again.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

4 files changed, 73 insertions, 42 deletions

diff --git a/rofi/udt/grid.rasi b/rofi/udt/grid.rasi
index b610a16..931aae7 100644
--- a/rofi/udt/grid.rasi
+++ b/rofi/udt/grid.rasi
@@ -6,15 +6,23 @@
  */
 
 @import "common.rasi"
+@import "header.rasi"
 
 window {
     width:    1500px;
     anchor:   center;
     location: center;
+    padding:  0;
 }
 
 mainbox {
-    children: [ inputbar, message, listview ];
+    children: [ header, message, listview ];
+    spacing:  0;
+}
+
+/* The window has no padding, for the banner, so the body is inset here. */
+message {
+    margin: 12px 16px 0;
 }
 
 listview {
@@ -22,6 +30,7 @@ listview {
     lines:   10;
     spacing: 6px;
     fixed-height: false;
+    padding: 12px 16px 16px;
 }
 
 /* Three wide columns rather than five narrow ones: each row is a glyph plus
diff --git a/rofi/udt/header.rasi b/rofi/udt/header.rasi
new file mode 100644
index 0000000..921e104
--- /dev/null
+++ b/rofi/udt/header.rasi
@@ -0,0 +1,52 @@
+/*
+ * udt header: the wallpaper banner over the searchable layouts.
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ * Licensed under the GNU General Public License v2 only.
+ *
+ * A layout lists `header` in mainbox and sets window padding to 0, so the
+ * banner runs to the window's edges. The script's -p is the title, an icon
+ * glyph and a name, lifted out of the inputbar to sit above it.
+ *
+ * @WPAPER@ is rewritten by the installer, which is why this file is
+ * generated rather than linked. rofi does not expand `~` inside a url().
+ */
+
+header {
+    expand:           false;
+    orientation:      vertical;
+    children:         [ headrow, inputbar ];
+    spacing:          12px;
+    padding:          2.5em 2em;
+    background-image: url("@WPAPER@", width);
+    background-color: @mantle;
+}
+
+/* The spacer keeps the title's plate to its own width. */
+headrow {
+    expand:      false;
+    orientation: horizontal;
+    children:    [ prompt, dummy ];
+}
+
+dummy {
+    expand: true;
+}
+
+/* Both sit on plates so they stay legible over any wallpaper. */
+prompt {
+    font:             "Noto Sans Bold 15";
+    text-color:       @text;
+    background-color: @base;
+    border-radius:    6px;
+    padding:          6px 12px;
+}
+
+inputbar {
+    background-color: @base;
+    border:           1px;
+    border-color:     @accent;
+}
+
+entry {
+    placeholder: "Search";
+}
diff --git a/rofi/udt/list.rasi b/rofi/udt/list.rasi
index 6812571..f9d3173 100644
--- a/rofi/udt/list.rasi
+++ b/rofi/udt/list.rasi
@@ -6,11 +6,13 @@
  */
 
 @import "common.rasi"
+@import "header.rasi"
 
 window {
     width:    680px;
     anchor:   center;
     location: center;
+    padding:  0;
 }
 
 /* `message` must be listed, or a `-mesg` passed by a script is silently
@@ -18,11 +20,18 @@ window {
  * costs nothing when unused. rofipass relies on this for its keybinding
  * cheatsheet. */
 mainbox {
-    children: [ inputbar, message, listview ];
+    children: [ header, message, listview ];
+    spacing:  0;
+}
+
+/* The window has no padding, for the banner, so the body is inset here. */
+message {
+    margin: 12px 16px 0;
 }
 
 listview {
     columns: 1;
     lines:   12;
     fixed-height: false;
+    padding: 12px 16px 16px;
 }
diff --git a/rofi/udt/ssh.rasi b/rofi/udt/ssh.rasi
index c40ac05..52899f1 100644
--- a/rofi/udt/ssh.rasi
+++ b/rofi/udt/ssh.rasi
@@ -9,6 +9,7 @@
  */
 
 @import "common.rasi"
+@import "header.rasi"
 
 window {
     width:    1100px;
@@ -22,46 +23,6 @@ mainbox {
     spacing:  0;
 }
 
-/* The wallpaper banner, as in launcher.rasi: the header and the search bar
- * share it. @WPAPER@ is rewritten by the installer, which is why this file
- * is generated rather than linked. */
-header {
-    expand:           false;
-    orientation:      vertical;
-    children:         [ headrow, inputbar ];
-    spacing:          12px;
-    padding:          2.5em 2em;
-    background-image: url("@WPAPER@", width);
-    background-color: @mantle;
-}
-
-/* The prompt is lifted out of the inputbar to sit above it, and kept to its
- * own width by the spacer so its plate does not span the banner. */
-headrow {
-    expand:      false;
-    orientation: horizontal;
-    children:    [ prompt, dummy ];
-}
-
-dummy {
-    expand: true;
-}
-
-/* Both sit on plates so they stay legible over any wallpaper. */
-prompt {
-    font:             "Noto Sans Bold 15";
-    text-color:       @text;
-    background-color: @base;
-    border-radius:    6px;
-    padding:          6px 12px;
-}
-
-inputbar {
-    background-color: @base;
-    border:           1px;
-    border-color:     @accent;
-}
-
 entry {
     placeholder: "Search hosts, users, addresses";
 }