Focused text fields show their outline on every edge (#202)

The focus outline of a text field was only visible at its corners.
The mask that clips the text covered the whole field, border included,
so the 1 px stroke was cut away along every straight edge. Only the
rounded corners bent inwards far enough to survive. With the larger
radius the new theme tried, this became obvious.

- TextField puts text, selection and caret into their own container.
  Only that container is masked. Background and outline are not.
- NumberField and the rename field in lists inherit the fix.
- The theme radius goes back to 2 px.
- New debug hook __gm.focusedRect() returns where the focused widget
  sits, so a check can read its border.

Tests:
- ./check.sh: 141 files, 2080 tests, exit 0
- GM_STEPS=2: ALL PASSED, 24 checks (one new)
- The new check in 2c reads the middle of all four edges of the
  focused name field. All four must be the focus blue.
- Counter-check with the old full-field mask: the check fails, all
  four edges read #24272e.
- Editor check total is now 1286 (1285 + 1), computed, not measured.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

README.md

@@ -43,7 +43,7 @@ npm run build        # writes dist/ and regenerates index.html; the folder is wh
 The browser suite and the three example games need a machine with a GPU:
 
 ```bash
-node tools/seed-e2e.mjs && node tools/e2e.mjs      # the editor, 1285 checks (GM_STEPS=20 for one step)
+node tools/seed-e2e.mjs && node tools/e2e.mjs      # the editor, 1286 checks (GM_STEPS=20 for one step)
                                                    #   every tool signs in first – see the Accounts page
 node tools/seed-jumprun.mjs && node tools/smoke-jumprun.mjs
 node tools/seed-tetris.mjs && node tools/smoke-tetris.mjs

src/editor/debugHook.ts

@@ -210,6 +210,11 @@ export function installDebugHook(app: Application, state: EditorState, editor: E
     inspectorField: fieldOf,
     /** The inspector panel on screen – what tells whether a row of it can be clicked at all. */
     inspectorRect: () => rectOf(inspector),
+    /** Where the focused widget sits on screen, or `null` – for checks on its focus border. */
+    focusedRect: () => {
+      const widget = ui().focus.focused;
+      return widget ? rectOf(widget) : null;
+    },
     inspectorInfo: () => inspector.debugInfo(),
     textColor,
     overlayTexts,

src/ui/Theme.ts

@@ -12,7 +12,7 @@ export const Theme = {
   controlHeight: 24,
   padding: 8,
   gap: 4,
-  radius: 8,
+  radius: 2,
   fieldPadding: 4,
   checkboxSize: 16,
   scrollbarWidth: 4,

src/ui/widgets/TextField.ts

@@ -1,4 +1,4 @@
-import { CanvasTextMetrics, type FederatedPointerEvent, Graphics, Text } from 'pixi.js';
+import { CanvasTextMetrics, Container, type FederatedPointerEvent, Graphics, Text } from 'pixi.js';
 import { pressCount } from '../clicks';
 import { drawControlBox } from '../draw';
 import type { TextEditTarget } from '../KeyboardBridge';
@@ -66,15 +66,12 @@ export class TextField extends Widget implements TextEditTarget {
     this.minWidth = options.width ?? 80;
     this.textNode = new Text({ text: value, style: textStyle(options.style ?? 'body') });
     this.placeholderNode = new Text({ text: this.placeholder, style: textStyle('muted') });
-    this.addChild(
-      this.bg,
-      this.selectionShape,
-      this.placeholderNode,
-      this.textNode,
-      this.caret,
-      this.clipShape,
-    );
-    this.mask = this.clipShape;
+    // Only the contents are clipped: a mask on the whole field cut its border away along the
+    // straight edges and left it showing at the rounded corners alone.
+    const content = new Container();
+    content.addChild(this.selectionShape, this.placeholderNode, this.textNode, this.caret);
+    content.mask = this.clipShape;
+    this.addChild(this.bg, content, this.clipShape);
 
     this.trackHover();
     this.on('pointerdown', (e: FederatedPointerEvent) => this.handlePointerDown(e));

tools/e2e/02-inspector.mjs

@@ -63,6 +63,21 @@ export async function inspector(t) {
   await press('a', { ctrl: true });
   await typeText('Renamed crate');
   await shot('03-typing');
+  // The focus border runs all the way round, not only through the rounded corners: the field's
+  // clip once took in its own border and cut the straight edges away.
+  const field = await json(`__gm.focusedRect()`);
+  const edges = field
+    ? await json(
+        `[[${field.x + field.w / 2}, ${field.y}], [${field.x + field.w / 2}, ${field.y + field.h - 1}],` +
+          ` [${field.x}, ${field.y + field.h / 2}], [${field.x + field.w - 1}, ${field.y + field.h / 2}]]` +
+          `.map(([x, y]) => __gm.pixelAt(Math.round(x), Math.round(y)))`,
+      )
+    : [];
+  check(
+    'the focused field is outlined along all four edges',
+    edges.length === 4 && edges.every((c) => c === '#4c8dff'),
+    JSON.stringify({ field, edges }),
+  );
   await press('Enter');
   check(
     'typing + Enter renamed the object',