From e58e7720c5524819344e33ed023fcd850015c794 Mon Sep 17 00:00:00 2001
From: Panagiotis Georgakopoulos <panagiotis.georgakopoulos@juliacomputing.com>
Date: Thu, 2 Dec 2021 18:38:47 +0200
Subject: [PATCH] Event listener implementation

---
 julia-runtime/run.jl | 30 ++++++++++++++++++------------
 src/backend.ts       |  4 ++--
 src/extension.ts     |  2 +-
 3 files changed, 21 insertions(+), 15 deletions(-)

diff --git a/julia-runtime/run.jl b/julia-runtime/run.jl
index 8c48d4c..0e2b8ec 100644
--- a/julia-runtime/run.jl
+++ b/julia-runtime/run.jl
@@ -99,10 +99,12 @@ pluto_server_options = Pluto.Configuration.from_flat_kwargs(;
     # show_file_system=false,
     dismiss_update_notification = true,
     auto_reload_from_file = false,
+    disable_writing_notebook_files = true,
     (Symbol(k) => v for (k, v) in JSON.parse(pluto_launch_params))...)
+
 pluto_server_session = Pluto.ServerSession(;
     secret = secret,
-    options = pluto_server_options
+    options = pluto_server_options,
 )
 
 extensionData = PlutoExtensionSessionData(
@@ -118,6 +120,21 @@ function whenNotebookUpdates(path, newString)
     sendCommand(path, newString)
 end
 
+function event_listener(pe::Pluto.PlutoEvent)
+    @info "Overriden PlutoEvent for"  pe.path
+end
+
+function event_listener(pe::Pluto.FileSaveEvent)
+    @info "Overriden filesave event for" pe.path
+    id = string(pe.notebook.notebook_id)
+    oldContent = get(extensionData.textRepresentations, id, "")
+    if oldContent != pe.fileContent
+        whenNotebookUpdates(pe.path, pe.fileContent)
+        extensionData.textRepresentations[id] = pe.fileContent
+    end
+end
+
+extensionData.session.event_listener =  event_listener
 ###
 @info "OPEN NOTEBOOK"
 
@@ -168,16 +185,6 @@ try ## Note: This is to assist with co-developing Pluto & this Extension
 catch
 end
 
-function registerOnFileSaveListener(notebook::Pluto.Notebook)
-    function onfilechange(pe::Pluto.PlutoEvent)
-        if pe isa Pluto.FileSaveEvent
-            whenNotebookUpdates(pe.path, pe.fileContent)
-        end
-    end
-    notebook.write_out_fs = false
-    notebook.listeners = [onfilechange, notebook.listeners...]
-end
-
 command_task = Pluto.@asynclog while true
     filenbmap = extensionData.notebooks
     new_command = getNextSTDINCommand()
@@ -202,7 +209,6 @@ command_task = Pluto.@asynclog while true
 
         jlpath = detail["fsPath"]  # joinpath(extensionData.jlfilesroot, detail["jlfile"])
         nb = Pluto.SessionActions.open(pluto_server_session, jlpath; notebook_id = UUID(detail["notebook_id"]))
-        registerOnFileSaveListener(nb)
         filenbmap[detail["jlfile"]] = nb
         generate_output(nb, editor_html_filename, vscode_proxy_root, frontend_params)
 
diff --git a/src/backend.ts b/src/backend.ts
index b690084..186208c 100644
--- a/src/backend.ts
+++ b/src/backend.ts
@@ -143,13 +143,13 @@ export class PlutoBackend {
             this._server.listen(await this.localport);
 
             this._process.stdout!.on("data", (data) => {
-                const text = data.slice(0, data.length - 1)
+                const text = data.slice(0)
 
                 console.log(`📈${text}`)
             })
 
             this._process.stderr!.on("data", (data) => {
-                const text = data.slice(0, data.length - 1)
+                const text = data.slice(0)
 
                 console.log(`📈${text}`)
                 // @info prints to stderr
diff --git a/src/extension.ts b/src/extension.ts
index 4e881e8..e43e084 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -6,7 +6,7 @@ import { TextDecoder, TextEncoder } from "util"
 import { v4 as uuid } from "uuid"
 
 // this is a commit on the vscode-webview-proxy branch, see https://github.com/fonsp/Pluto.jl/pull/1493
-export const PLUTO_BRANCH_NAME = "376b08851906afc9e52e2c09e823de8d7e656675"
+export const PLUTO_BRANCH_NAME = "12fc15932cbb6ac3bc83e4d758b590f168d069c9"
 
 /*
 HELLO