ayon-core/pype/ftrack/lib/ftrack_base_handler.py
2019-01-24 12:28:32 +01:00

312 lines
9.6 KiB
Python

import ftrack_api
import functools
import time
from pype import api as pype
class BaseHandler(object):
'''Custom Action base class
<label> - a descriptive string identifing your action.
<varaint> - To group actions together, give them the same
label and specify a unique variant per action.
<identifier> - a unique identifier for app.
<description> - a verbose descriptive text for you action
<icon> - icon in ftrack
'''
# Default priority is 100
priority = 100
# Type is just for logging purpose (e.g.: Action, Event, Application,...)
type = 'No-type'
def __init__(self, session):
'''Expects a ftrack_api.Session instance'''
self._session = session
self.log = pype.Logger.getLogger(self.__class__.__name__)
# Using decorator
self.register = self.register_log(self.register)
# Decorator
def register_log(self, func):
@functools.wraps(func)
def wrapper_register(*args, **kwargs):
label = self.__class__.__name__
if hasattr(self, 'label'):
if self.variant is None:
label = self.label
else:
label = '{} {}'.format(self.label, self.variant)
try:
start_time = time.perf_counter()
func(*args, **kwargs)
end_time = time.perf_counter()
run_time = end_time - start_time
self.log.info((
'{} "{}" - Registered successfully ({:.4f}sec)'
).format(self.type, label, run_time))
except NotImplementedError:
self.log.error((
'{} "{}" - Register method is not implemented'
).format(
self.type, label)
)
except Exception as e:
self.log.error('{} "{}" - Registration failed ({})'.format(
self.type, label, str(e))
)
return wrapper_register
@property
def session(self):
'''Return current session.'''
return self._session
def reset_session(self):
self.session.reset()
def register(self):
'''
Registers the action, subscribing the discover and launch topics.
Is decorated by register_log
'''
raise NotImplementedError()
def _discover(self, event):
args = self._translate_event(
self.session, event
)
accepts = self.discover(
self.session, *args
)
if accepts:
self.log.debug(u'Discovering action with selection: {0}'.format(
args[1]['data'].get('selection', [])))
return {
'items': [{
'label': self.label,
'variant': self.variant,
'description': self.description,
'actionIdentifier': self.identifier,
'icon': self.icon,
}]
}
def discover(self, session, entities, event):
'''Return true if we can handle the selected entities.
*session* is a `ftrack_api.Session` instance
*entities* is a list of tuples each containing the entity type and the entity id.
If the entity is a hierarchical you will always get the entity
type TypedContext, once retrieved through a get operation you
will have the "real" entity type ie. example Shot, Sequence
or Asset Build.
*event* the unmodified original event
'''
return False
def _translate_event(self, session, event):
'''Return *event* translated structure to be used with the API.'''
'''Return *event* translated structure to be used with the API.'''
_selection = event['data'].get('selection', [])
_entities = list()
for entity in _selection:
_entities.append(
(
session.get(
self._get_entity_type(entity),
entity.get('entityId')
)
)
)
return [
_entities,
event
]
def _get_entity_type(self, entity):
'''Return translated entity type tht can be used with API.'''
# Get entity type and make sure it is lower cased. Most places except
# the component tab in the Sidebar will use lower case notation.
entity_type = entity.get('entityType').replace('_', '').lower()
for schema in self.session.schemas:
alias_for = schema.get('alias_for')
if (
alias_for and isinstance(alias_for, str) and
alias_for.lower() == entity_type
):
return schema['id']
for schema in self.session.schemas:
if schema['id'].lower() == entity_type:
return schema['id']
raise ValueError(
'Unable to translate entity type: {0}.'.format(entity_type)
)
def _launch(self, event):
args = self._translate_event(
self.session, event
)
interface = self._interface(
self.session, *args
)
if interface:
return interface
response = self.launch(
self.session, *args
)
return self._handle_result(
self.session, response, *args
)
def launch(self, session, entities, event):
'''Callback method for the custom action.
return either a bool ( True if successful or False if the action failed )
or a dictionary with they keys `message` and `success`, the message should be a
string and will be displayed as feedback to the user, success should be a bool,
True if successful or False if the action failed.
*session* is a `ftrack_api.Session` instance
*entities* is a list of tuples each containing the entity type and the entity id.
If the entity is a hierarchical you will always get the entity
type TypedContext, once retrieved through a get operation you
will have the "real" entity type ie. example Shot, Sequence
or Asset Build.
*event* the unmodified original event
'''
raise NotImplementedError()
def _interface(self, *args):
interface = self.interface(*args)
if interface:
if 'items' in interface:
return interface
return {
'items': interface
}
def interface(self, session, entities, event):
'''Return a interface if applicable or None
*session* is a `ftrack_api.Session` instance
*entities* is a list of tuples each containing the entity type and the entity id.
If the entity is a hierarchical you will always get the entity
type TypedContext, once retrieved through a get operation you
will have the "real" entity type ie. example Shot, Sequence
or Asset Build.
*event* the unmodified original event
'''
return None
def _handle_result(self, session, result, entities, event):
'''Validate the returned result from the action callback'''
if isinstance(result, bool):
result = {
'success': result,
'message': (
'{0} launched successfully.'.format(
self.label
)
)
}
elif isinstance(result, dict):
for key in ('success', 'message'):
if key in result:
continue
raise KeyError(
'Missing required key: {0}.'.format(key)
)
else:
self.log.error(
'Invalid result type must be bool or dictionary!'
)
return result
def show_message(self, event, input_message, result=False):
"""
Shows message to user who triggered event
- event - just source of user id
- input_message - message that is shown to user
- result - changes color of message (based on ftrack settings)
- True = Violet
- False = Red
"""
if not isinstance(result, bool):
result = False
try:
message = str(input_message)
except Exception:
return
user_id = event['source']['user']['id']
target = (
'applicationId=ftrack.client.web and user.id="{0}"'
).format(user_id)
self.session.event_hub.publish(
ftrack_api.event.base.Event(
topic='ftrack.action.trigger-user-interface',
data=dict(
type='message',
success=result,
message=message
),
target=target
),
on_error='ignore'
)
def show_interface(self, event, items, title=''):
"""
Shows interface to user who triggered event
- 'items' must be list containing Ftrack interface items
"""
user_id = event['source']['user']['id']
target = (
'applicationId=ftrack.client.web and user.id="{0}"'
).format(user_id)
self.session.event_hub.publish(
ftrack_api.event.base.Event(
topic='ftrack.action.trigger-user-interface',
data=dict(
type='widget',
items=items,
title=title
),
target=target
),
on_error='ignore'
)