From dcf1c46f05d7e468a05244e99a2b0f570269f08d Mon Sep 17 00:00:00 2001
From: John Perkins <jeperkins4@gmail.com>
Date: Thu, 28 May 2026 13:34:45 -0400
Subject: [PATCH] Restore LBOS-1046 'updatefilters' editor controller action

The original LBOS-1046 commits (2019, PR #4) added an `updatefilters`
editor-controller action so p2-studio's CodingCanvas could dynamically
restrict the toolbox to blocks/namespaces appropriate for the active
codeBit / BLE bit. The v12.2.34 upstream merge preserved the
`updateFilters` IMPLEMENTATION in webapp/src/app.tsx but DROPPED the
wiring in pxteditor/editorcontroller.ts, so the postMessage was silently
ignored.

Restore:
- localtypings/pxteditor.d.ts: add `"updatefilters"` to the editor
  action union and `updateFilters(filters?: pxt.editor.ProjectFilters)`
  to the IProjectView interface.
- pxteditor/editorcontroller.ts: add the `case "updatefilters"` handler
  that calls `projectView.updateFilters((data as any).filters)`.

Verified end-to-end against the FUSE editor with
`ENABLE_PXT_FILTERS = true` in p2-studio: toolbox correctly drops the
~8 codeBit-inappropriate categories (Accelerometer, RgbLed, Debug, Bits,
Color, Console, Lists, Arrays) and keeps the 11 bit-appropriate ones.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 localtypings/pxteditor.d.ts   | 2 ++
 pxteditor/editorcontroller.ts | 9 +++++++++
 2 files changed, 11 insertions(+)

diff --git a/localtypings/pxteditor.d.ts b/localtypings/pxteditor.d.ts
index 59845ba17139..77b5595b934f 100644
--- a/localtypings/pxteditor.d.ts
+++ b/localtypings/pxteditor.d.ts
@@ -66,6 +66,7 @@ declare namespace pxt.editor {
         | "renderxml"
         | "renderbyblockid"
         | "setscale"
+        | "updatefilters"
         | "startactivity"
         | "saveproject"
         | "compile"
@@ -1028,6 +1029,7 @@ declare namespace pxt.editor {
         handleExtensionRequest(request: pxt.editor.ExtensionRequest): void;
 
         fireResize(): void;
+        updateFilters(filters?: pxt.editor.ProjectFilters): void;
         updateEditorLogo(left: number, rgba?: string): number;
 
         loadBlocklyAsync(): Promise<void>;
diff --git a/pxteditor/editorcontroller.ts b/pxteditor/editorcontroller.ts
index fb5f9d7c4346..55524047f6a6 100644
--- a/pxteditor/editorcontroller.ts
+++ b/pxteditor/editorcontroller.ts
@@ -95,6 +95,15 @@ export function bindEditorMessages(getEditorAsync: () => Promise<IProjectView>)
                                 return Promise.resolve()
                                     .then(() => projectView.editor.setScale(zoommsg.scale));
                             }
+                            case "updatefilters": return Promise.resolve()
+                                .then(() => {
+                                    // Restored from LBOS-1046 (lost in the v12 upstream merge).
+                                    // p2-studio CodingCanvas sends { type: 'pxteditor', action: 'updatefilters',
+                                    // filters: {...} } when active bits change, so the toolbox can be restricted
+                                    // to blocks/namespaces appropriate for the connected codeBit / BLE bit.
+                                    const filters = (data as any).filters as pxt.editor.ProjectFilters;
+                                    projectView.updateFilters(filters);
+                                });
                             case "stopsimulator": {
                                 const stop = data as pxt.editor.EditorMessageStopRequest;
                                 return Promise.resolve()