somew1nd
c2c90a6378
- Implement DevicePool and DeviceExecutionLock concurrency modes (per-device FIFO vs global serialization) - Extend ArtemisClient SDK and CLI with explicit device targeting and concurrency strategy configuration - Add server lifecycle management (artemis restart, stop, status) with cross-platform PID discovery - Update MCP server tools to support multi-device dispatch, trace tagging, and per-device execution - Enhance Showcase UI with step-by-step visual replay, playback speed controls, and device serial badges - Add comprehensive unit test coverage and edge-case verification scripts
123 lines
5.2 KiB
Python
123 lines
5.2 KiB
Python
# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""MCP Tool: mobile_get_device_state."""
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import base64
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import os
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from mcp_server.base import mcp
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from artemis.mcp.adb_server import _get_controller
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from mcp_server.utils import env_utils
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from artemis.utils.ocr_xml_fusion import (
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fuse_ocr_with_xml,
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_detect_status_bar_height,
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_crop_image_remove_status_bar,
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_map_coordinates_back,
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)
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from artemis.utils.ocr_api import is_ocr_configured, perform_ocr
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from artemis.utils.visualization import format_minimal_list_with_elements
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@mcp.tool()
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async def mobile_get_device_state(view_type: str, device_serial: str | None = None) -> str:
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"""Real-time mobile device state observer (for debugging and validation).
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Use this tool to inspect the latest mobile status or to assist in tracking
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the subagent's task progress.
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Retrieves a real-time screenshot (returns local file URI) or a simplified
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element tree text list of the target mobile device.
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### Device Selection Modes:
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1. **Direct Device Specification**: Provide `device_serial` to observe a specific
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phone or emulator (e.g. `device_serial="63191FDKX00062"`).
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2. **Automatic Device Selection**: Omit `device_serial` or leave it `None` to
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automatically inspect the default/connected device.
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**Diagnostics & User Preference**:
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- When multiple devices are attached, prioritize letting the user specify or confirm the device.
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- Run `adb devices` to check connected devices and identify their serial numbers.
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Args:
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view_type: The observation type. Supported values:
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- "screenshot": Captures the real-time mobile screen and saves it to the workspace,
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returning the local URI path of the image file (e.g., "file:///path/to/screenshot.jpg").
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- "hierarchy": Directly returns the simplified text-labeled element list, which is
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identical to what the mobile UI automation subagent sees when making decisions.
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device_serial: Optional Android device serial number (e.g., "63191FDKX00062" or
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"emulator-5554"). If specified, inspects state from that specific device. If omitted,
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inspects the default connected device.
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"""
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try:
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controller = _get_controller(device_serial=device_serial)
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device_width = controller.ctx.device.device_width
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device_height = controller.ctx.device.device_height
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except Exception as e:
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return f"Error: Failed to initialize/lock Android device controller: {e}"
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try:
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device_data = await controller.get_screen_data()
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latest_screenshot_b64 = device_data.base64
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xml_hierarchy = device_data.elements
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project_root = env_utils.get_project_root()
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if view_type == "screenshot":
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screenshot_bytes = base64.b64decode(latest_screenshot_b64)
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device_id = controller.ctx.device.device_id
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safe_device_id = "".join(
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[c if c.isalnum() or c in ("-", "_") else "_" for c in device_id]
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)
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screenshot_filename = f"live_screenshot_{safe_device_id}.jpg"
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screenshot_path = os.path.join(project_root, screenshot_filename)
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with open(screenshot_path, "wb") as f:
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f.write(screenshot_bytes)
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return f"file://{screenshot_path}"
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elif view_type == "hierarchy":
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ocr_results = []
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if is_ocr_configured():
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try:
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screen_height = device_data.height
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status_bar_height = _detect_status_bar_height(
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xml_hierarchy, screen_height
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)
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if status_bar_height > 0:
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cropped_b64, _, _ = _crop_image_remove_status_bar(
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latest_screenshot_b64, status_bar_height
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)
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raw_ocr_results = await perform_ocr(cropped_b64)
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ocr_results = _map_coordinates_back(
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raw_ocr_results, status_bar_height
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)
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else:
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ocr_results = await perform_ocr(latest_screenshot_b64)
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except Exception:
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ocr_results = []
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fused_xml = fuse_ocr_with_xml(xml_hierarchy, ocr_results)
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hierarchy_text, elements, labels = format_minimal_list_with_elements(
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fused_xml, width=device_width, height=device_height
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)
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return hierarchy_text
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else:
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return f"Error: Invalid view_type '{view_type}'. Supported types are 'screenshot' and 'hierarchy'."
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except Exception as e:
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return f"Error: An unexpected error occurred while communicating with the device: {e}"
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