dsh-window-drag

A DeepSeek Harness plugin that restores normal title-bar behavior in DSH Desktop on macOS: press and drag an empty title-bar area to move the window, and double-click it to zoom (fill the screen work area; double-click again to restore the previous bounds).

Why

Some DSH Desktop builds ignore -webkit-app-region: drag, so the shell's own [data-window-drag] regions never make the window draggable — the window can only be moved by the traffic lights or not at all. This plugin bypasses CSS drag regions entirely and moves the native window with window.moveBy() / window.moveTo() / window.resizeTo(), which Electron honors for the main window.

Behavior

• Drag zones: the top 48px title strip (the shell's --dsh-frame-top-clearance) across the full width, plus the sidebar header block (300×104px).
• DoubleClick: toggles macOS-style zoom using the screen work area.
• While zoomed: starting a drag shrinks the window to its previous size centered on the cursor (clamped to the screen boundaries) and continues the drag; double-click restores the previous bounds. (Renderer-driven window moves are clamped to the screen by Chromium, so a full-work-area window cannot slide as-is. The shell's native resize-border drag — grabbing the extreme window edge — is handled by the macOS window server instead and is not clamped: it can move the window off-screen or to another monitor while resizing. This plugin never intercepts those edge drags; its zones are the top strip and sidebar header only.)
• Boot rescue: if a previous session ended with the window fully outside the screen (possible via the native edge drag), the plugin brings it back to the screen work area at launch.
• Never captured: buttons, links, tabs, inputs, contenteditable, menus, dialogs, and any element tagged data-no-window-drag — clicks keep working.
• Disabled in fullscreen and entirely inert on Windows/Linux or in an ordinary browser tab (gated on the data-platform="darwin" attribute that only the Electron preload writes).

Install

From DSH Desktop, open Settings → Plugins (Plugin Manager) and install the bundle from:

github:angls4/dsh-window-drag

or clone and install the local directory:

git clone https://github.com/angls4/dsh-window-drag

Then install the dsh-window-drag/ directory through the Plugin Manager ("Install bundle…"). The plugin activates immediately; no restart is needed.

To uninstall, remove the bundle from the Plugin Manager.

Requirements

• DeepSeek Harness Desktop (developed against 0.2.1-rc.5)
• macOS; other platforms are unaffected

Development

This is a Cordis bundle: cordis.patch.yml inserts the window-drag row, index.js is an empty Host half, and client.js registers the Client module that attaches the pointer listeners. All listeners are removed when the plugin is disabled or uninstalled.

License

MIT — see LICENSE.