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Python

# DO NOT EDIT THIS FILE!
#
# This file is generated from the CDP specification. If you need to make
# changes, edit the generator and regenerate all of the modules.
#
# CDP domain: Accessibility (experimental)
from __future__ import annotations
from .util import event_class, T_JSON_DICT
from dataclasses import dataclass
import enum
import typing
from . import dom
from . import runtime
class AXNodeId(str):
'''
Unique accessibility node identifier.
'''
def to_json(self) -> str:
return self
@classmethod
def from_json(cls, json: str) -> AXNodeId:
return cls(json)
def __repr__(self):
return 'AXNodeId({})'.format(super().__repr__())
class AXValueType(enum.Enum):
'''
Enum of possible property types.
'''
BOOLEAN = "boolean"
TRISTATE = "tristate"
BOOLEAN_OR_UNDEFINED = "booleanOrUndefined"
IDREF = "idref"
IDREF_LIST = "idrefList"
INTEGER = "integer"
NODE = "node"
NODE_LIST = "nodeList"
NUMBER = "number"
STRING = "string"
COMPUTED_STRING = "computedString"
TOKEN = "token"
TOKEN_LIST = "tokenList"
DOM_RELATION = "domRelation"
ROLE = "role"
INTERNAL_ROLE = "internalRole"
VALUE_UNDEFINED = "valueUndefined"
def to_json(self):
return self.value
@classmethod
def from_json(cls, json):
return cls(json)
class AXValueSourceType(enum.Enum):
'''
Enum of possible property sources.
'''
ATTRIBUTE = "attribute"
IMPLICIT = "implicit"
STYLE = "style"
CONTENTS = "contents"
PLACEHOLDER = "placeholder"
RELATED_ELEMENT = "relatedElement"
def to_json(self):
return self.value
@classmethod
def from_json(cls, json):
return cls(json)
class AXValueNativeSourceType(enum.Enum):
'''
Enum of possible native property sources (as a subtype of a particular AXValueSourceType).
'''
FIGCAPTION = "figcaption"
LABEL = "label"
LABELFOR = "labelfor"
LABELWRAPPED = "labelwrapped"
LEGEND = "legend"
TABLECAPTION = "tablecaption"
TITLE = "title"
OTHER = "other"
def to_json(self):
return self.value
@classmethod
def from_json(cls, json):
return cls(json)
@dataclass
class AXValueSource:
'''
A single source for a computed AX property.
'''
#: What type of source this is.
type_: AXValueSourceType
#: The value of this property source.
value: typing.Optional[AXValue] = None
#: The name of the relevant attribute, if any.
attribute: typing.Optional[str] = None
#: The value of the relevant attribute, if any.
attribute_value: typing.Optional[AXValue] = None
#: Whether this source is superseded by a higher priority source.
superseded: typing.Optional[bool] = None
#: The native markup source for this value, e.g. a <label> element.
native_source: typing.Optional[AXValueNativeSourceType] = None
#: The value, such as a node or node list, of the native source.
native_source_value: typing.Optional[AXValue] = None
#: Whether the value for this property is invalid.
invalid: typing.Optional[bool] = None
#: Reason for the value being invalid, if it is.
invalid_reason: typing.Optional[str] = None
def to_json(self):
json = dict()
json['type'] = self.type_.to_json()
if self.value is not None:
json['value'] = self.value.to_json()
if self.attribute is not None:
json['attribute'] = self.attribute
if self.attribute_value is not None:
json['attributeValue'] = self.attribute_value.to_json()
if self.superseded is not None:
json['superseded'] = self.superseded
if self.native_source is not None:
json['nativeSource'] = self.native_source.to_json()
if self.native_source_value is not None:
json['nativeSourceValue'] = self.native_source_value.to_json()
if self.invalid is not None:
json['invalid'] = self.invalid
if self.invalid_reason is not None:
json['invalidReason'] = self.invalid_reason
return json
@classmethod
def from_json(cls, json):
return cls(
type_=AXValueSourceType.from_json(json['type']),
value=AXValue.from_json(json['value']) if 'value' in json else None,
attribute=str(json['attribute']) if 'attribute' in json else None,
attribute_value=AXValue.from_json(json['attributeValue']) if 'attributeValue' in json else None,
superseded=bool(json['superseded']) if 'superseded' in json else None,
native_source=AXValueNativeSourceType.from_json(json['nativeSource']) if 'nativeSource' in json else None,
native_source_value=AXValue.from_json(json['nativeSourceValue']) if 'nativeSourceValue' in json else None,
invalid=bool(json['invalid']) if 'invalid' in json else None,
invalid_reason=str(json['invalidReason']) if 'invalidReason' in json else None,
)
@dataclass
class AXRelatedNode:
#: The BackendNodeId of the related DOM node.
backend_dom_node_id: dom.BackendNodeId
#: The IDRef value provided, if any.
idref: typing.Optional[str] = None
#: The text alternative of this node in the current context.
text: typing.Optional[str] = None
def to_json(self):
json = dict()
json['backendDOMNodeId'] = self.backend_dom_node_id.to_json()
if self.idref is not None:
json['idref'] = self.idref
if self.text is not None:
json['text'] = self.text
return json
@classmethod
def from_json(cls, json):
return cls(
backend_dom_node_id=dom.BackendNodeId.from_json(json['backendDOMNodeId']),
idref=str(json['idref']) if 'idref' in json else None,
text=str(json['text']) if 'text' in json else None,
)
@dataclass
class AXProperty:
#: The name of this property.
name: AXPropertyName
#: The value of this property.
value: AXValue
def to_json(self):
json = dict()
json['name'] = self.name.to_json()
json['value'] = self.value.to_json()
return json
@classmethod
def from_json(cls, json):
return cls(
name=AXPropertyName.from_json(json['name']),
value=AXValue.from_json(json['value']),
)
@dataclass
class AXValue:
'''
A single computed AX property.
'''
#: The type of this value.
type_: AXValueType
#: The computed value of this property.
value: typing.Optional[typing.Any] = None
#: One or more related nodes, if applicable.
related_nodes: typing.Optional[typing.List[AXRelatedNode]] = None
#: The sources which contributed to the computation of this property.
sources: typing.Optional[typing.List[AXValueSource]] = None
def to_json(self):
json = dict()
json['type'] = self.type_.to_json()
if self.value is not None:
json['value'] = self.value
if self.related_nodes is not None:
json['relatedNodes'] = [i.to_json() for i in self.related_nodes]
if self.sources is not None:
json['sources'] = [i.to_json() for i in self.sources]
return json
@classmethod
def from_json(cls, json):
return cls(
type_=AXValueType.from_json(json['type']),
value=json['value'] if 'value' in json else None,
related_nodes=[AXRelatedNode.from_json(i) for i in json['relatedNodes']] if 'relatedNodes' in json else None,
sources=[AXValueSource.from_json(i) for i in json['sources']] if 'sources' in json else None,
)
class AXPropertyName(enum.Enum):
'''
Values of AXProperty name:
- from 'busy' to 'roledescription': states which apply to every AX node
- from 'live' to 'root': attributes which apply to nodes in live regions
- from 'autocomplete' to 'valuetext': attributes which apply to widgets
- from 'checked' to 'selected': states which apply to widgets
- from 'activedescendant' to 'owns' - relationships between elements other than parent/child/sibling.
'''
BUSY = "busy"
DISABLED = "disabled"
EDITABLE = "editable"
FOCUSABLE = "focusable"
FOCUSED = "focused"
HIDDEN = "hidden"
HIDDEN_ROOT = "hiddenRoot"
INVALID = "invalid"
KEYSHORTCUTS = "keyshortcuts"
SETTABLE = "settable"
ROLEDESCRIPTION = "roledescription"
LIVE = "live"
ATOMIC = "atomic"
RELEVANT = "relevant"
ROOT = "root"
AUTOCOMPLETE = "autocomplete"
HAS_POPUP = "hasPopup"
LEVEL = "level"
MULTISELECTABLE = "multiselectable"
ORIENTATION = "orientation"
MULTILINE = "multiline"
READONLY = "readonly"
REQUIRED = "required"
VALUEMIN = "valuemin"
VALUEMAX = "valuemax"
VALUETEXT = "valuetext"
CHECKED = "checked"
EXPANDED = "expanded"
MODAL = "modal"
PRESSED = "pressed"
SELECTED = "selected"
ACTIVEDESCENDANT = "activedescendant"
CONTROLS = "controls"
DESCRIBEDBY = "describedby"
DETAILS = "details"
ERRORMESSAGE = "errormessage"
FLOWTO = "flowto"
LABELLEDBY = "labelledby"
OWNS = "owns"
def to_json(self):
return self.value
@classmethod
def from_json(cls, json):
return cls(json)
@dataclass
class AXNode:
'''
A node in the accessibility tree.
'''
#: Unique identifier for this node.
node_id: AXNodeId
#: Whether this node is ignored for accessibility
ignored: bool
#: Collection of reasons why this node is hidden.
ignored_reasons: typing.Optional[typing.List[AXProperty]] = None
#: This ``Node``'s role, whether explicit or implicit.
role: typing.Optional[AXValue] = None
#: The accessible name for this ``Node``.
name: typing.Optional[AXValue] = None
#: The accessible description for this ``Node``.
description: typing.Optional[AXValue] = None
#: The value for this ``Node``.
value: typing.Optional[AXValue] = None
#: All other properties
properties: typing.Optional[typing.List[AXProperty]] = None
#: IDs for each of this node's child nodes.
child_ids: typing.Optional[typing.List[AXNodeId]] = None
#: The backend ID for the associated DOM node, if any.
backend_dom_node_id: typing.Optional[dom.BackendNodeId] = None
def to_json(self):
json = dict()
json['nodeId'] = self.node_id.to_json()
json['ignored'] = self.ignored
if self.ignored_reasons is not None:
json['ignoredReasons'] = [i.to_json() for i in self.ignored_reasons]
if self.role is not None:
json['role'] = self.role.to_json()
if self.name is not None:
json['name'] = self.name.to_json()
if self.description is not None:
json['description'] = self.description.to_json()
if self.value is not None:
json['value'] = self.value.to_json()
if self.properties is not None:
json['properties'] = [i.to_json() for i in self.properties]
if self.child_ids is not None:
json['childIds'] = [i.to_json() for i in self.child_ids]
if self.backend_dom_node_id is not None:
json['backendDOMNodeId'] = self.backend_dom_node_id.to_json()
return json
@classmethod
def from_json(cls, json):
return cls(
node_id=AXNodeId.from_json(json['nodeId']),
ignored=bool(json['ignored']),
ignored_reasons=[AXProperty.from_json(i) for i in json['ignoredReasons']] if 'ignoredReasons' in json else None,
role=AXValue.from_json(json['role']) if 'role' in json else None,
name=AXValue.from_json(json['name']) if 'name' in json else None,
description=AXValue.from_json(json['description']) if 'description' in json else None,
value=AXValue.from_json(json['value']) if 'value' in json else None,
properties=[AXProperty.from_json(i) for i in json['properties']] if 'properties' in json else None,
child_ids=[AXNodeId.from_json(i) for i in json['childIds']] if 'childIds' in json else None,
backend_dom_node_id=dom.BackendNodeId.from_json(json['backendDOMNodeId']) if 'backendDOMNodeId' in json else None,
)
def disable() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
'''
Disables the accessibility domain.
'''
cmd_dict: T_JSON_DICT = {
'method': 'Accessibility.disable',
}
json = yield cmd_dict
def enable() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,None]:
'''
Enables the accessibility domain which causes ``AXNodeId``'s to remain consistent between method calls.
This turns on accessibility for the page, which can impact performance until accessibility is disabled.
'''
cmd_dict: T_JSON_DICT = {
'method': 'Accessibility.enable',
}
json = yield cmd_dict
def get_partial_ax_tree(
node_id: typing.Optional[dom.NodeId] = None,
backend_node_id: typing.Optional[dom.BackendNodeId] = None,
object_id: typing.Optional[runtime.RemoteObjectId] = None,
fetch_relatives: typing.Optional[bool] = None
) -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.List[AXNode]]:
'''
Fetches the accessibility node and partial accessibility tree for this DOM node, if it exists.
**EXPERIMENTAL**
:param node_id: *(Optional)* Identifier of the node to get the partial accessibility tree for.
:param backend_node_id: *(Optional)* Identifier of the backend node to get the partial accessibility tree for.
:param object_id: *(Optional)* JavaScript object id of the node wrapper to get the partial accessibility tree for.
:param fetch_relatives: *(Optional)* Whether to fetch this nodes ancestors, siblings and children. Defaults to true.
:returns: The ``Accessibility.AXNode`` for this DOM node, if it exists, plus its ancestors, siblings and children, if requested.
'''
params: T_JSON_DICT = dict()
if node_id is not None:
params['nodeId'] = node_id.to_json()
if backend_node_id is not None:
params['backendNodeId'] = backend_node_id.to_json()
if object_id is not None:
params['objectId'] = object_id.to_json()
if fetch_relatives is not None:
params['fetchRelatives'] = fetch_relatives
cmd_dict: T_JSON_DICT = {
'method': 'Accessibility.getPartialAXTree',
'params': params,
}
json = yield cmd_dict
return [AXNode.from_json(i) for i in json['nodes']]
def get_full_ax_tree() -> typing.Generator[T_JSON_DICT,T_JSON_DICT,typing.List[AXNode]]:
'''
Fetches the entire accessibility tree
**EXPERIMENTAL**
:returns:
'''
cmd_dict: T_JSON_DICT = {
'method': 'Accessibility.getFullAXTree',
}
json = yield cmd_dict
return [AXNode.from_json(i) for i in json['nodes']]