codemp-sublime/plugin.py

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import sublime
import sublime_plugin
# import os
# import sys
# import importlib.util
from .src.TaskManager import tm
from .src.client import client, VirtualClient
from .src.client import CodempLogger
from .src.utils import status_log
from .src.utils import safe_listener_detach
from .src.utils import safe_listener_attach
from .src import globals as g
from .bindings.codemp import init_logger
TEXT_LISTENER = None
# Initialisation and Deinitialisation
##############################################################################
def plugin_loaded():
global TEXT_LISTENER
# instantiate and start a global asyncio event loop.
# pass in the exit_handler coroutine that will be called upon relasing the event loop.
tm.acquire(disconnect_client)
logger = CodempLogger(init_logger(False))
tm.dispatch(logger.log(), "codemp-logger")
TEXT_LISTENER = CodempClientTextChangeListener()
status_log("plugin loaded")
async def disconnect_client():
global TEXT_LISTENER
tm.stop_all()
if TEXT_LISTENER is not None:
safe_listener_detach(TEXT_LISTENER)
for vws in client.workspaces.values():
vws.cleanup()
def plugin_unloaded():
# releasing the runtime, runs the disconnect callback defined when acquiring the event loop.
status_log("unloading")
tm.release(False)
# Listeners
##############################################################################
class EventListener(sublime_plugin.EventListener):
def on_exit(self):
tm.release(True)
def on_pre_close_window(self, window):
if client.active_workspace is None:
return # nothing to do
client.make_active(None)
s = window.settings()
if not s.get(g.CODEMP_WINDOW_TAG, False):
return
for wsid in s[g.CODEMP_WINDOW_WORKSPACES]:
ws = client[wsid]
if ws is None:
status_log(
"[WARN] a tag on the window was found but not a matching workspace."
)
continue
ws.cleanup()
del client.workspaces[wsid]
class CodempClientViewEventListener(sublime_plugin.ViewEventListener):
@classmethod
def is_applicable(cls, settings):
return settings.get(g.CODEMP_BUFFER_TAG, False)
@classmethod
def applies_to_primary_view_only(cls):
return False
def on_selection_modified_async(self):
ws = client.get_workspace(self.view)
if ws is None:
return
vbuff = ws.get_by_local(self.view.buffer_id())
if vbuff is not None:
vbuff.send_cursor(ws)
def on_activated(self):
# sublime has no proper way to check if a view gained or lost input focus outside of this
# callback (i know right?), so we have to manually keep track of which view has the focus
g.ACTIVE_CODEMP_VIEW = self.view.id()
# print("view {} activated".format(self.view.id()))
global TEXT_LISTENER
safe_listener_attach(TEXT_LISTENER, self.view.buffer())
def on_deactivated(self):
g.ACTIVE_CODEMP_VIEW = None
# print("view {} deactivated".format(self.view.id()))
global TEXT_LISTENER
safe_listener_detach(TEXT_LISTENER)
def on_pre_close(self):
global TEXT_LISTENER
if self.view.id() == g.ACTIVE_CODEMP_VIEW:
safe_listener_detach(TEXT_LISTENER)
ws = client.get_workspace(self.view)
if ws is None:
return
vbuff = ws.get_by_local(self.view.buffer_id())
if vbuff is not None:
vbuff.cleanup()
class CodempClientTextChangeListener(sublime_plugin.TextChangeListener):
@classmethod
def is_applicable(cls, buffer):
# don't attach this event listener automatically
# we'll do it by hand with .attach(buffer).
return False
# blocking :D
def on_text_changed(self, changes):
s = self.buffer.primary_view().settings()
if s.get(g.CODEMP_IGNORE_NEXT_TEXT_CHANGE, None):
status_log("Ignoring echoing back the change.")
s[g.CODEMP_IGNORE_NEXT_TEXT_CHANGE] = False
return
vbuff = client.get_buffer(self.buffer.primary_view())
if vbuff is not None:
vbuff.send_buffer_change(changes)
# Commands:
# codemp_connect: connect to a server.
# codemp_join: shortcut command if you already know both workspace id
# and buffer id
# codemp_join_workspace: joins a specific workspace, without joining also a buffer
# codemp_join_buffer: joins a specific buffer within the current active workspace
# codemp_share: ??? todo!()
# codemp_disconnect: manually call the disconnection, triggering the cleanup and dropping
# the connection
#
# Internal commands:
# replace_text: swaps the content of a view with the given text.
#
# Connect Command
#############################################################################
class CodempConnectCommand(sublime_plugin.WindowCommand):
def run(self, server_host):
tm.dispatch(client.connect(server_host))
def input(self, args):
if "server_host" not in args:
return ServerHost()
def input_description(self):
return "Server host:"
# Generic Join Command
#############################################################################
async def JoinCommand(client: VirtualClient, workspace_id: str, buffer_id: str):
vws = await client.join_workspace(workspace_id)
if vws is not None:
await vws.attach(buffer_id)
class CodempJoinCommand(sublime_plugin.WindowCommand):
def run(self, workspace_id, buffer_id):
tm.dispatch(JoinCommand(client, workspace_id, buffer_id))
def input_description(self):
return "Join:"
def input(self, args):
if "workspace_id" not in args:
return WorkspaceIdAndFollowup()
# Join Workspace Command
#############################################################################
class CodempJoinWorkspaceCommand(sublime_plugin.WindowCommand):
def run(self, workspace_id):
tm.dispatch(client.join_workspace(workspace_id, "sublime3"))
def input_description(self):
return "Join specific workspace"
def input(self, args):
if "workspace_id" not in args:
return RawWorkspaceId()
# Join Buffer Command
#############################################################################
class CodempJoinBufferCommand(sublime_plugin.WindowCommand):
def run(self, buffer_id):
if client.active_workspace is None:
sublime.error_message(
"You haven't joined any worksapce yet. \
use `Codemp: Join Workspace` or `Codemp: Join`"
)
return
tm.dispatch(client.active_workspace.attach(buffer_id))
def input_description(self):
return "Join buffer in the active workspace"
# This is awful, fix it
def input(self, args):
if client.active_workspace is None:
sublime.error_message(
"You haven't joined any worksapce yet. \
use `Codemp: Join Workspace` or `Codemp: Join`"
)
return
if "buffer_id" not in args:
existing_buffers = client.active_workspace.handle.filetree()
if len(existing_buffers) == 0:
return RawBufferId()
else:
return ListBufferId()
# Text Change Command
#############################################################################
class CodempReplaceTextCommand(sublime_plugin.TextCommand):
def run(self, edit, start, end, content, change_id):
# we modify the region to account for any change that happened in the mean time
region = self.view.transform_region_from(sublime.Region(start, end), change_id)
self.view.replace(edit, region, content)
# Input Handlers
##############################################################################
class ServerHost(sublime_plugin.TextInputHandler):
def name(self):
return "server_host"
def initial_text(self):
return "http://127.0.0.1:50051"
class ListBufferId(sublime_plugin.ListInputHandler):
def name(self):
return "buffer_id"
def list_items(self):
return client.active_workspace.handle.filetree()
def next_input(self, args):
if "buffer_id" not in args:
return RawBufferId()
class RawWorkspaceId(sublime_plugin.TextInputHandler):
def name(self):
return "workspace_id"
def placeholder(self):
return "Workspace Id"
class WorkspaceIdAndFollowup(sublime_plugin.TextInputHandler):
def name(self):
return "workspace_id"
def placeholder(self):
return "Workspace Id"
def next_input(self, args):
if "buffer_id" not in args:
return RawBufferId()
class RawBufferId(sublime_plugin.TextInputHandler):
def name(self):
return "buffer_id"
def placeholder(self):
return "Buffer Id"
# Share Command
# #############################################################################
# class CodempShareCommand(sublime_plugin.WindowCommand):
# def run(self, sublime_buffer_path, server_id):
# sublime_asyncio.dispatch(share_buffer_command(sublime_buffer_path, server_id))
# def input(self, args):
# if "sublime_buffer" not in args:
# return SublimeBufferPathInputHandler()
# def input_description(self):
# return "Share Buffer:"
# Disconnect Command
#############################################################################
class CodempDisconnectCommand(sublime_plugin.WindowCommand):
def run(self):
tm.sync(disconnect_client())
# Proxy Commands ( NOT USED, left just in case we need it again. )
#############################################################################
# class ProxyCodempShareCommand(sublime_plugin.WindowCommand):
# # on_window_command, does not trigger when called from the command palette
# # See: https://github.com/sublimehq/sublime_text/issues/2234
# def run(self, **kwargs):
# self.window.run_command("codemp_share", kwargs)
#
# def input(self, args):
# if 'sublime_buffer' not in args:
# return SublimeBufferPathInputHandler()
#
# def input_description(self):
# return 'Share Buffer:'
# NOT NEEDED ANYMORE
# def compress_change_region(changes):
# # the bounding region of all text changes.
# txt_a = float("inf")
# txt_b = 0
# # the region in the original buffer subjected to the change.
# reg_a = float("inf")
# reg_b = 0
# # we keep track of how much the changes move the indexing of the buffer
# buffer_shift = 0 # left - + right
# for change in changes:
# # the change in characters that the change would bring
# # len(str) and .len_utf8 are mutually exclusive
# # len(str) is when we insert new text at a position
# # .len_utf8 is the length of the deleted/canceled string in the buffer
# change_delta = len(change.str) - change.len_utf8
# # the text region is enlarged to the left
# txt_a = min(txt_a, change.a.pt)
# # On insertion, change.b.pt == change.a.pt
# # If we meet a new insertion further than the current window
# # we expand to the right by that change.
# # On deletion, change.a.pt == change.b.pt - change.len_utf8
# # when we delete a selection and it is further than the current window
# # we enlarge to the right up until the begin of the deleted region.
# if change.b.pt > txt_b:
# txt_b = change.b.pt + change_delta
# else:
# # otherwise we just shift the window according to the change
# txt_b += change_delta
# # the bounding region enlarged to the left
# reg_a = min(reg_a, change.a.pt)
# # In this bit, we want to look at the buffer BEFORE the modifications
# # but we are working on the buffer modified by all previous changes for each loop
# # we use buffer_shift to keep track of how the buffer shifts around
# # to map back to the correct index for each change in the unmodified buffer.
# if change.b.pt + buffer_shift > reg_b:
# # we only enlarge if we have changes that exceede on the right the current window
# reg_b = change.b.pt + buffer_shift
# # after using the change delta, we archive it for the next iterations
# # the minus is just for being able to "add" the buffer shift with a +.
# # since we encode deleted text as negative in the change_delta, but that requires the shift to the
# # old position to be positive, and viceversa for text insertion.
# buffer_shift -= change_delta
# # print("\t[buff change]", change.a.pt, change.str, "(", change.len_utf8,")", change.b.pt)
# # print("[walking txt]", "[", txt_a, txt_b, "]", txt)
# # print("[walking reg]", "[", reg_a, reg_b, "]")
# return reg_a, reg_b