Import AITURK IDE 1.0.0-beta.1 from Hermes 63279301; preserve MIT license

tools/preview_tool.py

@@ -0,0 +1,85 @@
+#!/usr/bin/env python3
+"""The `desktop_preview` tool — the preview pane beside the chat, as ONE tool.
+
+Consolidation (#95681, maintainer-directed): open_preview, close_preview,
+and read_preview each re-taught "the preview pane beside the chat" world;
+one action enum states it once (576 -> ~210 tok). The read action keeps
+its agent-callback dispatch (agent_runtime_helpers routes action=read
+through agent.read_preview_callback, same as read_preview did).
+
+Lives in the ``desktop_ui`` toolset — desktop-app sessions only.
+"""
+
+import json
+
+from tools import desktop_ui
+from tools.open_preview_tool import _normalize_target, open_preview_tool
+from tools.registry import registry, tool_error
+
+
+def preview_open(url: str, label: str = "") -> str:
+    return open_preview_tool(url=url, label=label)
+
+
+def preview_close(url: str = "") -> str:
+    target = _normalize_target(url or "")
+    try:
+        ok = desktop_ui.emit("preview.close", {"url": target})
+    except Exception as exc:  # noqa: BLE001
+        return tool_error(f"Failed to close the preview: {exc}")
+    if not ok:
+        return tool_error("The preview pane is only available in the Hermes desktop app.")
+    return json.dumps({"success": True, "closed": target or "all"}, ensure_ascii=False)
+
+
+def _handle_preview(args, **kw):
+    """Non-read actions only: action=read is dispatched at the agent level
+    (needs the GUI callback), mirroring the old read_preview special path."""
+    action = (args.get("action") or "").strip()
+    if action == "open":
+        return preview_open(url=args.get("url", ""), label=args.get("label", ""))
+    if action == "close":
+        return preview_close(url=args.get("url", ""))
+    if action == "read":
+        return tool_error(
+            "preview read must run inside a desktop session (no GUI callback here)."
+        )
+    return tool_error("action must be one of: open, close, read.")
+
+
+PREVIEW_SCHEMA = {
+    "name": "desktop_preview",
+    "description": (
+        "Open, close, or read the preview pane beside the chat. open: show "
+        "a web URL (bare domains fine), a localhost dev server, or a file path "
+        "(HTML renders live) — opens for the current window only. close: dismiss "
+        "the whole pane, or one tab via url. read: what the pane currently shows "
+        "— returns {kind, url, title, text, start, end, total_chars}; a Browser "
+        "tab's text is the rendered page's visible text, paged with start/count "
+        "(char offsets); a file tab answers identity only (read the file with "
+        "read_file)."
+    ),
+    "parameters": {
+        "type": "object",
+        "properties": {
+            "action": {"type": "string", "enum": ["open", "close", "read"]},
+            "url": {
+                "type": "string",
+                "description": "open: the target. close: one tab (omit for the whole pane).",
+            },
+            "label": {"type": "string", "description": "open: optional tab label."},
+            "start": {"type": "integer", "description": "read: 0-indexed char offset."},
+            "count": {"type": "integer", "description": "read: chars to return (capped per read)."},
+        },
+        "required": ["action"],
+    },
+}
+
+
+registry.register(
+    name="desktop_preview",
+    toolset="desktop_ui",
+    schema=PREVIEW_SCHEMA,
+    handler=_handle_preview,
+    emoji="🖼️",
+)