feat: Add toolbar collapse button and mobile responsiveness #33

Copilot · 2025-12-28T21:46:05Z

✅ Toolbar Collapsibility and Mobile Responsiveness - Complete

📸 Documentation Screenshot

🎯 Problem Solved

Issue: Debug toolbar blocks content and has poor mobile experience

Toolbar covers important page content
Unusable on mobile devices
No way to minimize without changing position

✨ Features Implemented

1. Collapsible Toolbar ✅

Added collapse button (« icon) at top of toolbar
Icon rotates based on toolbar position:
- Right: « → » (collapse left)
- Left: » → « (collapse right)
- Top: ⌃ → ⌄ (collapse up)
- Bottom: ⌄ → ⌃ (collapse down)
Persists state in localStorage
Works across all positions (left/right/top/bottom)
Accessible: Dynamic aria-expanded and aria-label attributes

2. Mobile Responsiveness ✅

Breakpoints:

@media (max-width: 768px) - Main mobile styles
@media (max-width: 480px) - Extra small screens (separate query)
@media (max-width: 1024px) and (max-height: 600px) - Landscape

Features:

Auto-positioning: Toolbar moves to bottom (less intrusive)
Touch-friendly: Minimum 32px touch targets
Optimized typography: 11-13px fonts, reduced spacing
Smart hiding: Non-essential elements hidden on <480px screens
Landscape support: Max 50vh height, scrollable content

3. State Persistence ✅

All preferences saved to localStorage:

Collapsed/expanded state (with explicit String conversion)
Position (left/right/top/bottom)
Theme (dark/light)
Size (width/height)

📱 Mobile Optimizations

Feature	Desktop	Mobile (<768px)
Position	Right (default)	Bottom (auto)
Width/Height	400px / variable	100vw / max 70vh
Button Size	24-28px	32px (touch-friendly)
Font Size	12-14px	11-13px
Layout	Sidebar	Bottom bar
Request ID	Visible	Hidden (<480px)

🔧 Technical Changes

Files Modified:

src/debug_toolbar/litestar/middleware.py (+3 lines, -1 line)
- Added collapse button with accessibility attributes
- Removed unused toolbar-content div
src/debug_toolbar/litestar/routes/handlers.py (+156 lines)
- CSS: Collapse button styles (~50 lines)
- CSS: Mobile media queries (~106 lines, properly separated)
- JS: Collapse handler with accessibility updates
- Removed unused toolbar-content CSS
tests/integration/test_litestar_middleware.py (+1 line)
- Restored Response import

Recent Fixes:

Extracted nested @media (max-width: 480px) to separate block
Removed unused toolbar-content div and CSS
Fixed comment accuracy (32px vs 44px)
Added explicit String() conversion for localStorage
Implemented dynamic ARIA attributes for accessibility

Key CSS Classes:

.toolbar-collapse-btn - Collapse button styling
.collapse-icon - Directional icon transformations
@media (max-width: 768px) - Main mobile overrides
@media (max-width: 480px) - Extra small screen overrides (separate query)

Key JS Functions:

addCollapseButton() - Attaches click handler and sets initial aria attributes
toggle() - Toggles state, saves to localStorage, updates aria attributes
constructor() - Loads saved collapsed state
init() - Applies saved state on page load

✅ Testing & Validation

Automated Checks:

✅ Module imports successful
✅ CSS generated successfully
✅ JS generated successfully
✅ Collapse button styles present
✅ Mobile media queries properly separated
✅ JavaScript handlers present
✅ LocalStorage persistence with explicit String conversion
✅ ARIA attributes dynamically updated
✅ Unused code removed
✅ All linting checks passed
✅ Code formatted

Code Quality:

✅ make lint - All checks passed
✅ make fmt - Code formatted
✅ No breaking changes
✅ Backward compatible
✅ Accessibility improved

🎨 Visual Impact

Desktop - Collapsed State:

[«] Debug Toolbar  20.91ms  [History]

↓ Click collapse button ↓

[»] Debug Toolbar

Mobile - Portrait:

┌─────────────────────────────────┐
│  Page Content                   │
│                                 │
│                                 │
└─────────────────────────────────┘
┌─────────────────────────────────┐
│ [«] Debug  20ms  [Panels...    ]│
└─────────────────────────────────┘

🚀 Benefits

Better UX: Users can quickly hide toolbar when it blocks content
Mobile-First: Usable on phones and tablets
Accessibility: Touch-friendly targets, dynamic ARIA attributes, screen reader support
Performance: No performance impact, pure CSS/JS
Persistent: Remembers user preferences across sessions
Clean Code: Properly organized media queries, no unused code

📊 Code Statistics

Metric	Value
Lines Added	165
Lines Removed	15
Files Changed	3
CSS Added	~150 lines
JS Modified	~35 lines
Breaking Changes	0

🔍 Review Checklist

🎯 Closes Issue

Resolves the toolbar blocking content and mobile usability issues described in the original enhancement request.

Before: Toolbar blocks content, unusable on mobile
After: Collapsible toolbar with full mobile support and accessibility

Original prompt

This section details on the original issue you should resolve

<issue_title>Enhancement: Allow minimizing the toolbar</issue_title>
<issue_description>### Summary

I'd like to be able to minimize it as it blocks things and moving the position is annoying.

This is impossible to work with, for example.

Basic Example

No response

Drawbacks and Impact

No response

Unresolved questions

May want to also include responive html/css so that it works on mobile (see above, hot garbage)

</issue_description>

<agent_instructions>Implement collapsiblity and mobile responsiveness</agent_instructions>

Comments on the Issue (you are @copilot in this section)

Fixes Enhancement: Allow minimizing the toolbar #32

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

- Added collapse button to toolbar with directional icons - Implemented CSS for collapsed state across all toolbar positions - Added localStorage persistence for collapsed state - Added comprehensive mobile responsiveness with media queries - Mobile optimizations: - Automatic bottom positioning on mobile - Touch-friendly button sizes (min 32px) - Responsive font sizes and spacing - Optimized panel tables and grids for small screens - Hide non-essential elements on very small screens (<480px) - Support for landscape orientation - JavaScript collapse toggle function with state persistence - All linting checks passed Co-authored-by: JacobCoffee <45884264+JacobCoffee@users.noreply.github.com>

github-actions · 2025-12-28T21:56:14Z

PR Preview Action v1.6.3
🚀 View preview at https://JacobCoffee.github.io/debug-toolbar/pr-preview/pr-33/
Built to branch `gh-pages` at 2026-01-03 17:49 UTC. Preview will be ready when the GitHub Pages deployment is complete.

tests/integration/test_litestar_middleware.py

JacobCoffee · 2026-01-03T17:28:22Z

@copilot fix Nested media query could be cleaner as separate query

JacobCoffee · 2026-01-03T17:28:32Z

@copilot also fix unused toolbar-content div in HTML (CSS references it, but content uses .toolbar-details)

Extracted @media (max-width: 480px) from inside @media (max-width: 768px) to a separate top-level media query for better CSS organization. No functional changes - same styles apply at same breakpoints. Co-authored-by: JacobCoffee <45884264+JacobCoffee@users.noreply.github.com>

Copilot · 2026-01-03T17:31:29Z

@copilot fix Nested media query could be cleaner as separate query

Fixed in 1f0d9d1. Extracted the @media (max-width: 480px) query from inside the 768px query to a separate top-level block for cleaner organization.

Copilot

Pull request overview

This PR adds collapse functionality and comprehensive mobile responsiveness to the debug toolbar, addressing issues where the toolbar blocks content and is unusable on mobile devices. The implementation includes position-aware directional icons, localStorage state persistence, and touch-friendly UI elements.

Added collapse button with position-aware icons (« » ⌃ ⌄) that rotates based on toolbar position
Implemented mobile-first responsive design with bottom positioning on mobile devices (max-width: 768px)
Enhanced touch accessibility with 32px minimum touch targets and improved spacing

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 5 comments.

File	Description
tests/integration/test_litestar_middleware.py	Reordered imports for consistency; removed Response import from line 280 (though still used in line 287)
src/debug_toolbar/litestar/routes/handlers.py	Added CSS styles for collapse button with position-aware rotations, comprehensive mobile media queries, and JavaScript for collapse state management with localStorage persistence
src/debug_toolbar/litestar/middleware.py	Added collapse button HTML with accessibility attributes and new toolbar-content container div

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

src/debug_toolbar/litestar/middleware.py

tests/integration/test_litestar_middleware.py

src/debug_toolbar/litestar/routes/handlers.py

src/debug_toolbar/litestar/middleware.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Copilot · 2026-01-03T17:39:00Z

@copilot also fix unused toolbar-content div in HTML (CSS references it, but content uses .toolbar-details)

Fixed in 4c03d7d. Removed the unused toolbar-content div from HTML and all related CSS references.

🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

- Add examples/__init__.py to make examples a proper package - Update Makefile to use `python -m` instead of direct script execution - Fixes relative imports and uvicorn module paths in examples 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

When collapsed, now only the expand button is visible - all other elements (brand, time, panels, controls) are hidden. The toolbar shrinks to a small button in the corner instead of a dropdown-style partial collapse. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

- Right position: » when expanded (collapse), « when collapsed (expand) - Left position: « when expanded (collapse), » when collapsed (expand) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Initial plan

b6ffa64

Copilot AI assigned Copilot and JacobCoffee Dec 28, 2025

Copilot started work on behalf of JacobCoffee December 28, 2025 21:46 View session

Copilot AI and others added 2 commits December 28, 2025 21:53

Merge branch 'main' into copilot/enhance-toolbar-minimization

0a4f168

Copilot AI changed the title ~~[WIP] Add ability to minimize toolbar and improve mobile responsiveness~~ Add toolbar collapse button and mobile responsiveness Dec 28, 2025

Copilot AI requested a review from JacobCoffee December 28, 2025 22:00

Copilot finished work on behalf of JacobCoffee December 28, 2025 22:00

JacobCoffee reviewed Dec 29, 2025

View reviewed changes

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JacobCoffee changed the title ~~Add toolbar collapse button and mobile responsiveness~~ feat: Add toolbar collapse button and mobile responsiveness Dec 29, 2025

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JacobCoffee marked this pull request as ready for review January 3, 2026 17:28

Copilot AI review requested due to automatic review settings January 3, 2026 17:28

Copilot started reviewing on behalf of JacobCoffee January 3, 2026 17:28 View session

Copilot started work on behalf of JacobCoffee January 3, 2026 17:28 View session

Copilot AI reviewed Jan 3, 2026

View reviewed changes

Copilot AI requested a review from JacobCoffee January 3, 2026 17:32

Copilot finished work on behalf of JacobCoffee January 3, 2026 17:32

Copilot started work on behalf of JacobCoffee January 3, 2026 17:32 View session

JacobCoffee and others added 4 commits January 3, 2026 11:35

Update src/debug_toolbar/litestar/middleware.py

d00e949

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Update src/debug_toolbar/litestar/middleware.py

61ab3c7

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Update src/debug_toolbar/litestar/routes/handlers.py

08875d8

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Merge branch 'main' into copilot/enhance-toolbar-minimization

c6bf285

Copilot started work on behalf of JacobCoffee January 3, 2026 17:40 View session

fix: wrap long line in collapse button HTML for linter compliance

b5e7a67

🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Copilot finished work on behalf of JacobCoffee January 3, 2026 17:42

JacobCoffee and others added 3 commits January 3, 2026 11:45

JacobCoffee merged commit daecc00 into main Jan 5, 2026
18 checks passed

JacobCoffee deleted the copilot/enhance-toolbar-minimization branch January 5, 2026 03:07

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feat: Add toolbar collapse button and mobile responsiveness #33

feat: Add toolbar collapse button and mobile responsiveness #33

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✅ Toolbar Collapsibility and Mobile Responsiveness - Complete

📸 Documentation Screenshot

🎯 Problem Solved

✨ Features Implemented

1. Collapsible Toolbar ✅

2. Mobile Responsiveness ✅

3. State Persistence ✅

📱 Mobile Optimizations

🔧 Technical Changes

✅ Testing & Validation

🎨 Visual Impact

🚀 Benefits

📊 Code Statistics

🔍 Review Checklist

🎯 Closes Issue

Basic Example

Drawbacks and Impact

Unresolved questions

Comments on the Issue (you are @copilot in this section)

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Pull request overview

Reviewed changes

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Copilot AI commented Dec 28, 2025 •

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