Add Always on Top hide mode

README.md

@@ -182,7 +182,7 @@ Config is stored at `~/.config/docking/dock.json` (auto-created on first run). N
 | `zoom_range` | 3 | Icon widths over which zoom tapers off |
 | `position` | bottom | Dock edge: bottom, top, left, right |
 | `monitor_index` | -1 | Target monitor index (`-1` = primary monitor, `0..N` = specific monitor) |
-| `hide_mode` | none | Dock hide behavior: `none`, `autohide`, `intelligent`, `dodge-active`, `window-dodge`, `dodge-maximized` |
+| `hide_mode` | none | Dock hide behavior: `none`, `always-on-top`, `autohide`, `intelligent`, `dodge-active`, `window-dodge`, `dodge-maximized` |
 | `hide_delay_ms` | 0 | Delay before hiding starts (0 = instant) |
 | `unhide_delay_ms` | 0 | Delay before showing the dock again |
 | `hide_time_ms` | 250 | Duration of hide/show slide animation |
@@ -206,6 +206,7 @@ Config is stored at `~/.config/docking/dock.json` (auto-created on first run). N
 `hide_mode` meanings:
 
 - `none`: Dock stays visible and reserves screen space.
+- `always-on-top`: Dock stays visible above all windows without reserving screen space.
 - `autohide`: Dock hides when the cursor leaves.
 - `intelligent`: Dock hides when a window from the focused app overlaps the dock.
 - `dodge-active`: Dock hides when the focused window overlaps the dock.

docking/core/config.py

@@ -271,7 +271,10 @@ class HideMode(str, Enum):
 
     Mode            Behavior
     ──────────────  ──────────────────────────────────────────────────────
-    NONE            Never hides, reserves struts for window managers.
+    NONE            Never hides, reserves struts so maximized windows
+                    avoid the dock area.
+    ALWAYS_ON_TOP   Never hides, but does not reserve struts — maximized
+                    windows fill the full screen and the dock floats above.
     AUTOHIDE        Hides when the mouse leaves the dock area.
     INTELLIGENT     Hides when any window from the active app overlaps
                     the dock (matched by WM_CLASS).
@@ -291,6 +294,7 @@ class HideMode(str, Enum):
     """
 
     NONE = "none"
+    ALWAYS_ON_TOP = "always-on-top"
     AUTOHIDE = "autohide"
     INTELLIGENT = "intelligent"
     DODGE_ACTIVE = "dodge-active"