d4cec15b47
Behavior-neutral structural pass over tools/*: god-file extractions into sibling modules (file_operations_common/lint/search, file_tools_paths/ read_tracking/write, code_execution_env/rpc, tool_search_catalog/names/ validation, tts_command_provider, ...), duplicate helper unification, if/elif -> dispatch tables, dead-code removal, docstring compaction. Tool schemas (get_tool_definitions) verified byte-identical to base.
42 lines
1.4 KiB
Python
42 lines
1.4 KiB
Python
#!/usr/bin/env python3
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"""Read the in-app browser / preview pane in the Hermes desktop GUI.
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The preview's content lives in the renderer (a sandboxed ``<webview>``), so this
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round-trips through the gateway's blocking-prompt bridge like ``read_terminal``
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(``preview.read.request`` -> ``preview.read.respond``). Registration moved into
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`desktop_preview`; the agent dispatches action=read here with the injected callback.
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"""
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from typing import Callable, Optional
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from tools.desktop_ui import passthrough_json
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from tools.registry import tool_error
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def read_preview_tool(
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start: Optional[int] = None,
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count: Optional[int] = None,
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callback: Optional[Callable] = None,
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) -> str:
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"""Return the active preview tab's contents (+ metadata) as a JSON string."""
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if callback is None:
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return tool_error("read_preview is only available in the Hermes desktop app.")
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try:
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window = {
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key: max(floor, int(val))
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for key, val, floor in (("start", start, 0), ("count", count, 1))
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if val is not None
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}
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except (TypeError, ValueError):
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return tool_error("start and count must be integers.")
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try:
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raw = callback(**window)
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except Exception as exc:
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return tool_error(f"Failed to read the preview pane: {exc}")
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if not raw:
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return tool_error("No preview tab is open, or the read timed out.")
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return passthrough_json(raw)
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