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import json
from webdriver.bidi.modules.script import ContextTarget
async def get_object_from_context(bidi_session, context, object_path):
"""Return a plain JS object from a given context, accessible at the given object_path"""
events_str = await bidi_session.script.evaluate(
expression=f"JSON.stringify({object_path})",
target=ContextTarget(context),
await_promise=False,
)
return json.loads(events_str["value"])
async def get_events(bidi_session, context):
"""Return list of key events recorded on the test_actions.html page."""
events = await get_object_from_context(bidi_session, context, "allEvents.events")
# `key` values in `allEvents` may be escaped (see `escapeSurrogateHalf` in
# test_actions.html), so this converts them back into unicode literals.
for e in events:
# example: turn "U+d83d" (6 chars) into u"\ud83d" (1 char)
if "key" in e and e["key"].startswith("U+"):
key = e["key"]
hex_suffix = key[key.index("+") + 1:]
e["key"] = chr(int(hex_suffix, 16))
# WebKit sets code as 'Unidentified' for unidentified key codes, but
# tests expect ''.
if "code" in e and e["code"] == "Unidentified":
e["code"] = ""
return events
async def get_keys_value(bidi_session, context):
keys_value = await bidi_session.script.evaluate(
expression="""document.getElementById("keys").value""",
target=ContextTarget(context),
await_promise=False,
)
return keys_value["value"]