72 lines
2.6 KiB
Python
72 lines
2.6 KiB
Python
#!/usr/bin/env python3
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"""Apply a layout preset in the Hermes desktop GUI.
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Lives in the ``desktop_ui`` toolset (like ``focus_pane``), which the GUI
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gateway enables only for desktop-sourced sessions. Emits ``layout.apply``
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through the shared ``desktop_ui`` bridge; the renderer resolves the preset id
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against its layouts registry (core presets, plugin presets, and user-saved
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presets are all the same list) and applies the tree through the exact code
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path the layout picker uses. Only the active window's session may act — a
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background turn never rearranges the user's desktop.
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Preset ids are free-form on purpose: plugins and users mint their own. The
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renderer answers with the applied preset's id/title on success and the list
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of available ids when the id is unknown, so the model can self-correct
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without a second registry-listing tool.
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"""
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import json
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from tools import desktop_ui
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from tools.registry import registry, tool_error
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# Renderer answer arrives via the blocking-prompt bridge with this timeout;
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# applying a layout is synchronous in the renderer, so this is generous.
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_TIMEOUT_NOTE = "Layout apply is only available in the Hermes desktop app."
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def apply_layout_tool(preset: str) -> str:
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"""Ask the desktop GUI to apply layout preset ``preset``."""
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name = (preset or "").strip()
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if not name:
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return tool_error("preset is required — a layout preset id, e.g. 'default' or 'focus'.")
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try:
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ok = desktop_ui.emit("layout.apply", {"preset": name})
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except Exception as exc:
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return tool_error(f"Failed to apply layout '{name}': {exc}")
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if not ok:
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return tool_error(_TIMEOUT_NOTE)
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return json.dumps({"success": True, "preset": name}, ensure_ascii=False)
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APPLY_LAYOUT_SCHEMA = {
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"name": "apply_layout",
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"description": (
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"Apply a saved layout preset to the Hermes desktop app when the user "
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"asks to rearrange the workspace. Built-ins: default (chat + "
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"sidebars), focus (chat only), terminal-deck, quad; plugin/user "
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"presets by id. To reveal ONE pane, use focus_pane instead."
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),
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"parameters": {
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"type": "object",
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"properties": {
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"preset": {
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"type": "string",
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"description": "Layout preset id to apply (e.g. 'default', 'focus', 'terminal-deck', 'quad', or a user/plugin preset id).",
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},
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},
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"required": ["preset"],
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},
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}
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registry.register(
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name="apply_layout",
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toolset="desktop_ui",
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schema=APPLY_LAYOUT_SCHEMA,
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handler=lambda args, **kw: apply_layout_tool(preset=args.get("preset", "")),
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emoji="🧱",
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)
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