85 lines
3.1 KiB
Python
85 lines
3.1 KiB
Python
import sys
|
|
import os
|
|
from threading import Thread
|
|
from i3pystatus.core.exceptions import ConfigError
|
|
|
|
from i3pystatus.core.imputil import ClassFinder
|
|
from i3pystatus.core import io, util
|
|
from i3pystatus.core.modules import Module
|
|
|
|
|
|
class CommandEndpoint:
|
|
"""
|
|
Endpoint for i3bar click events: http://i3wm.org/docs/i3bar-protocol.html#_click_events
|
|
|
|
:param modules: dict-like object with item access semantics via .get()
|
|
:param io_handler_factory: function creating a file-like object returning a JSON generator on .read()
|
|
"""
|
|
|
|
def __init__(self, modules, io_handler_factory):
|
|
self.modules = modules
|
|
self.io_handler_factory = io_handler_factory
|
|
self.thread = Thread(target=self._command_endpoint)
|
|
self.thread.daemon = True
|
|
|
|
def start(self):
|
|
"""Starts the background thread"""
|
|
self.thread.start()
|
|
|
|
def _command_endpoint(self):
|
|
for command in self.io_handler_factory().read():
|
|
target_module = self.modules.get(command["instance"])
|
|
if target_module:
|
|
target_module.on_click(command["button"])
|
|
|
|
|
|
class Status:
|
|
"""
|
|
The main class used for registering modules and managing I/O
|
|
|
|
:param standalone: Whether i3pystatus should read i3status-compatible input from `input_stream`
|
|
:param interval: Update interval in seconds
|
|
:param input_stream: A file-like object that provides the input stream, if `standalone` is False.
|
|
"""
|
|
|
|
def __init__(self, standalone=False, interval=1, input_stream=sys.stdin, click_events=True):
|
|
self.modules = util.ModuleList(self, ClassFinder(Module))
|
|
self.standalone = standalone
|
|
if standalone:
|
|
self.io = io.StandaloneIO(click_events, interval)
|
|
self.command_endpoint = CommandEndpoint(
|
|
self.modules,
|
|
lambda: io.JSONIO(io=io.IOHandler(sys.stdin, open(os.devnull, "w")), skiplines=1))
|
|
else:
|
|
self.io = io.IOHandler(input_stream)
|
|
|
|
def register(self, module, *args, **kwargs):
|
|
"""Register a new module."""
|
|
from i3pystatus.text import Text
|
|
|
|
if not module:
|
|
return
|
|
|
|
try:
|
|
return self.modules.append(module, *args, **kwargs)
|
|
except ImportError as import_error:
|
|
if import_error.name and not import_error.path and isinstance(module, str):
|
|
# This is a package/module not found exception raised by importing a module on-the-fly
|
|
return self.modules.append(Text(
|
|
color="#FF0000",
|
|
text="{i3py_mod}: Missing Python module '{missing_module}'".format(
|
|
i3py_mod=module,
|
|
missing_module=import_error.name)))
|
|
else:
|
|
raise import_error
|
|
except ConfigError as configuration_error:
|
|
return self.modules.append(Text(
|
|
color="#FF0000",
|
|
text=configuration_error.message))
|
|
|
|
def run(self):
|
|
self.command_endpoint.start()
|
|
for j in io.JSONIO(self.io).read():
|
|
for module in self.modules:
|
|
module.inject(j)
|