fix(layout): responsive page regions + grid columns on mobile by os-zhuang · Pull Request #1816 · objectstack-ai/objectui

os-zhuang · 2026-06-20T09:13:46Z

Mobile-mode QA (390×844) found two foundational responsiveness gaps that made every composed page render poorly on phones.

1 — Region layouts didn't stack

Sidebar + main stayed side-by-side at all widths — on a phone the sidebar squeezed main to an unreadable sliver. RegionLayout, header-sidebar-main, and three-column templates now use flex flex-col md:flex-row, and sidebars are w-full on mobile (fixed width only at md+, via a new getSidebarWidthClass that returns literal responsive strings so Tailwind's JIT emits them). Rails stack above/below main on phones, restore side-by-side on desktop.

2 — Layout grid didn't collapse

A bare numeric columns: N rendered grid-cols-N at all widths — a 4-up KPI row became 4 slivers on mobile. A bare numeric columns (no explicit responsive object / sm/md/lg/xlColumns) now ramps mobile-first: grid-cols-1 sm:grid-cols-2 md:grid-cols-N. Explicit responsive configs keep full control.

Verified

Browser-tested at 390×844 and 1440×900: showcase home, My Work, dashboard, list/table, and record pages all read well on mobile and are unchanged on desktop. components layout tests pass (1203).

🤖 Generated with Claude Code

Mobile-mode QA found two foundational responsiveness gaps that made every composed page render poorly on phones. 1. Region layouts kept sidebar + main SIDE-BY-SIDE at all widths — on a 390px phone the sidebar squeezed the main column to an unreadable sliver. The RegionLayout, header-sidebar-main, and three-column templates now use `flex flex-col md:flex-row`, and sidebars are `w-full` on mobile (fixed width only at md+ via a new getSidebarWidthClass returning LITERAL responsive strings so Tailwind's JIT emits them). Rails now stack above/below main on phones and restore side-by-side on desktop. 2. The layout `grid` rendered a bare numeric `columns: N` as `grid-cols-N` at ALL widths — a 4-up KPI row became 4 unreadable slivers on mobile. A bare numeric columns (no explicit responsive object / sm/md/lg/xlColumns) now ramps mobile-first: `grid-cols-1 sm:grid-cols-2 md:grid-cols-N`. Authors with explicit responsive config keep full control. Browser-verified at 390×844 AND 1440×900: the showcase home, My Work, dashboard, lists, and record pages all read well on mobile and are unchanged on desktop. components layout tests pass (1203). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

vercel · 2026-06-20T09:13:53Z

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
objectui	Ignored		Jun 20, 2026 9:13am

github-actions · 2026-06-20T09:17:09Z

✅ Console Performance Budget

Metric	Value	Budget
Main entry (gzip)	58.7 KB	350 KB
Entry file	`index-CUwIIlFN.js`	—
Status	PASS	—

📦 Bundle Size Report

Package	Size	Gzipped
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app-shell (types.js)	0.01KB	0.04KB
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auth (LoginForm.js)	5.11KB	1.92KB
auth (PreviewBanner.js)	0.90KB	0.50KB
auth (RegisterForm.js)	6.63KB	2.15KB
auth (SocialSignInButtons.js)	8.89KB	3.61KB
auth (UserMenu.js)	3.40KB	1.22KB
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auth (createAuthClient.js)	24.74KB	6.00KB
auth (createAuthenticatedFetch.js)	3.33KB	1.32KB
auth (index.js)	1.75KB	0.76KB
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core (index.js)	1.44KB	0.53KB
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i18n (useObjectLabel.js)	21.15KB	4.68KB
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types (layout.js)	0.20KB	0.18KB
types (mobile.js)	0.20KB	0.18KB
types (navigation.js)	0.20KB	0.18KB
types (objectql.js)	0.20KB	0.18KB
types (overlay.js)	0.20KB	0.18KB
types (permissions.js)	0.20KB	0.18KB
types (plugin-scope.js)	0.20KB	0.18KB
types (record-components.js)	0.20KB	0.19KB
types (registry.js)	0.20KB	0.18KB
types (reports.js)	0.20KB	0.18KB
types (spec-report.js)	5.26KB	1.96KB
types (tenant.js)	0.20KB	0.18KB
types (theme.js)	0.20KB	0.18KB
types (ui-action.js)	0.75KB	0.46KB
types (views.js)	0.20KB	0.18KB
types (widget.js)	0.20KB	0.18KB

Size Limits

✅ Core packages should be < 50KB gzipped
✅ Component packages should be < 100KB gzipped
⚠️ Plugin packages should be < 150KB gzipped

github-actions Bot added the package: components label Jun 20, 2026

os-zhuang merged commit 9a0b053 into main Jun 20, 2026
10 checks passed

os-zhuang deleted the fix/sdui-mobile-responsive branch June 20, 2026 09:13

os-zhuang mentioned this pull request Jun 20, 2026

fix(grid): activate mobile card view at the 768px app breakpoint #1822

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fix(layout): responsive page regions + grid columns on mobile#1816

fix(layout): responsive page regions + grid columns on mobile#1816
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os-zhuang commented Jun 20, 2026

1 — Region layouts didn't stack

2 — Layout grid didn't collapse

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✅ Console Performance Budget

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