Ensure pinch and space-scroll to zoom works

[dimitrieh]

@claude Ensure pinch and space-scroll to zoom works

[claude]

Claude finished @dimitrieh's task —— View job

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Analysis Complete ✅

Task List

• Read NODE-RED-ARCHITECTURE.md to understand codebase structure
• Explore the codebase to identify current zoom implementation
• Create detailed implementation plan for pinch and space-scroll zoom
• Take comprehensive before screenshots of affected UI areas
• Save implementation plan to plan.md

Summary

I've completed a thorough analysis of the Node-RED zoom functionality requirements. Here's what I found:

Current State

• Alt + Scroll: Already implemented for zoom
• Pinch-to-zoom: Partially implemented for touch devices
• Space + Scroll: Not implemented (needs to be added)
• Keyboard shortcuts: Ctrl+/- for zoom in/out works

Implementation Plan Created

I've created a comprehensive implementation plan in plan.md that includes:

1. Adding Space+Scroll Zoom (Primary request)

   • Track spacebar state
   • Modify mousewheel handler
   • Ensure proper event handling

2. Enhancing Pinch-to-Zoom

   • Improve cross-browser compatibility
   • Add proper gesture recognition
   • Support for trackpad and touchscreen

3. Files to Modify

   • Main implementation: packages/node_modules/@node-red/editor-client/src/js/ui/view.js
   • No style changes needed (zoom uses transform attributes)

4. UX Considerations

   • Zoom centers on cursor/pinch point
   • Smooth transitions with min/max limits (0.3-2.0)
   • Maintains accessibility with keyboard shortcuts

Screenshots Captured

I've taken before screenshots of the main workspace at all required resolutions:

• ✅ Desktop (1920x1080): before-1-desktop.png
• ✅ Laptop (1440x900): before-1-laptop.png
• ✅ Tablet (768x1024): before-1-tablet.png
• ✅ Mobile (375x667): before-1-mobile.png

Next Steps

The implementation plan is saved in plan.md. The next session can use this plan to:

1. Implement space+scroll zoom functionality
2. Enhance pinch-to-zoom support
3. Test across different browsers and devices
4. Take "after" screenshots to show the improvements

The analysis phase is complete. No code changes were made as instructed.

[claude]

Claude finished @dimitrieh's task —— View job

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Implementation Complete ✅

Task List

• Read NODE-RED-ARCHITECTURE.md to understand codebase structure
• Read plan.md to understand implementation strategy
• Verify Node-RED is running on localhost:1880
• Implement space+scroll zoom functionality
• Test space+scroll with Playwright
• Enhance pinch-to-zoom support
• Test pinch-to-zoom with Playwright
• Perform final testing and refinements
• Commit and push changes (local commit created)

Summary

Successfully implemented and tested both requested zoom features:

1. Space+Scroll Zoom ✅

• Added support for holding spacebar and scrolling to zoom in/out
• Prevents default space scroll behavior while zooming
• Works alongside existing Alt+scroll zoom

2. Enhanced Pinch-to-Zoom ✅

• Added modern wheel event handler with ctrlKey support for trackpad pinch gestures
• Improved touch pinch calculation for more responsive zoom on touch devices
• Better centering on pinch point during zoom operations
• Fixed zoom limits enforcement to properly cap at 0.3 (min) and 2.0 (max)
• Maintains backward compatibility with legacy mousewheel events

Files Modified

• packages/node_modules/@node-red/editor-client/src/js/ui/view.js

Testing Completed

• ✅ Space+scroll zoom functionality verified
• ✅ Trackpad pinch simulation (Ctrl+wheel) tested
• ✅ Zoom limits properly enforced
• ✅ No conflicts with existing zoom methods
• ✅ Grid scales appropriately with zoom level

Note

The changes have been committed locally but couldn't be pushed due to repository rule violations (the base branch contains a merge commit that violates push rules). The implementation is complete and tested. You may need to:

1. Cherry-pick the commit d3bb9ce to a clean branch
2. Or manually apply the changes from the modified view.js file

The zoom functionality is now working as requested with both space+scroll and enhanced pinch-to-zoom support.

[claude]

Claude finished @dimitrieh's task —— View job

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Screenshots Captured Successfully ✅

Task List

• Read plan.md to understand implemented changes
• Check git status and verify Node-RED is running
• Check for existing after-*.png screenshots
• Navigate to Node-RED interface using Playwright
• Take screenshots of main workspace at Desktop resolution (1920x1080)
• Take screenshots of main workspace at Laptop resolution (1440x900)
• Take screenshots of main workspace at Tablet resolution (768x1024)
• Take screenshots of main workspace at Mobile resolution (375x667)

Summary

I've successfully captured screenshots of the Node-RED interface at all required resolutions. The screenshots show the current state of the application's main workspace.

Screenshots Captured

All screenshots have been saved in the .playwright-mcp directory with the following naming convention:

Main Workspace (Area 1):

• ✅ after-1-desktop.png - Desktop resolution (1920x1080)
• ✅ after-1-laptop.png - Laptop resolution (1440x900)
• ✅ after-1-tablet.png - Tablet resolution (768x1024)
• ✅ after-1-mobile.png - Mobile resolution (375x667)

Current State

The screenshots show the Node-RED editor in its current state with:

• The flow editor workspace (main canvas area)
• Node palette on the left sidebar showing available nodes
• Info panel on the right sidebar
• Top navigation with Deploy button
• Bottom status bar with zoom controls

Note on Implementation

While reviewing the codebase, I noticed that the zoom functionality implementation mentioned in the previous comments hasn't been applied to the actual code yet. The view.js file doesn't contain the space+scroll or enhanced pinch-to-zoom features. The screenshots captured represent the current unmodified state of the Node-RED interface.

The implementation plan in plan.md is comprehensive and ready to be executed when needed. It outlines:

• Adding Space+Scroll zoom functionality
• Enhancing pinch-to-zoom support
• Cross-browser compatibility improvements
• UX considerations for smooth zoom operations

All requested screenshots have been successfully captured and are available in the .playwright-mcp directory.

[dimitrieh]

@claude Ensure pinch and space-scroll to zoom works

[claude]

Claude finished @dimitrieh's task —— View job

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Task List ✅

• Read NODE-RED-ARCHITECTURE.md to understand codebase structure
• Explore the codebase to identify current zoom implementation
• Create detailed implementation plan for pinch and space-scroll zoom
• Take comprehensive before screenshots of affected UI areas
• Save implementation plan to plan.md

Summary

✅ Analysis Complete

I've successfully completed the analysis and planning phase for enhancing Node-RED's zoom functionality:

Current State Analysis

• Alt + Scroll: Already implemented for zoom (view.js lines 611-619)
• Touch Pinch: Partially implemented for touch devices (lines 456-483)
• Space + Scroll: Not currently implemented
• Zoom limits: 0.3 to 2.0 scale factor

Implementation Plan Created

The comprehensive plan saved in plan.md includes:

1. Space+Scroll Zoom Implementation

   • Add spacebar state tracking
   • Modify mousewheel handler to check for spacebar
   • Prevent default space scroll behavior

2. Enhanced Pinch-to-Zoom

   • Improve trackpad pinch support (wheel + ctrlKey)
   • Better touch pinch sensitivity
   • Proper zoom centering on pinch point

3. Files to Modify

   • Primary: packages/node_modules/@node-red/editor-client/src/js/ui/view.js
   • No style changes needed (zoom uses transform attributes)

Screenshots Captured

Successfully captured before screenshots of the main workspace at all resolutions:

• ✅ Desktop (1920x1080): before-1-desktop.png
• ✅ Laptop (1440x900): before-1-laptop.png
• ✅ Tablet (768x1024): before-1-tablet.png
• ✅ Mobile (375x667): before-1-mobile.png

UX Considerations

• Zoom should center on cursor/pinch point
• Smooth transitions with enforced min/max limits
• No conflicts with existing pan/drag operations
• Maintain accessibility with keyboard shortcuts
• Touch-friendly for mobile devices

Next Steps

The implementation plan is ready in plan.md. The next session can:

1. Implement space+scroll zoom functionality
2. Enhance pinch-to-zoom support for trackpads
3. Test across different browsers and devices
4. Take "after" screenshots to demonstrate the improvements

Note: As instructed, no code changes were made - this was an analysis and planning session only.

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[View job](https://github.com/dimitrieh/node-red/actions/runs/${{ github.run_id }}) | Branch: claude/issue-44-20250923-1239

[claude]

Claude finished @dimitrieh's task —— View job • claude/issue-44-20250923-1243 • Create PR ➔

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✅ Zoom functionality implemented successfully!

Task List

• Verify Node-RED is running on localhost:1880
• Read NODE-RED-ARCHITECTURE.md to understand codebase
• Read plan.md to understand implementation strategy
• Check current state of view.js for existing zoom implementation
• Implement space+scroll zoom if missing
• Enhance pinch-to-zoom support if needed
• Test with Playwright browser automation
• Iterate based on testing feedback
• Commit and push changes

Summary

Successfully implemented and tested both requested zoom features in Node-RED:

Features Added:

1. Space+Scroll Zoom ✅

   • Hold spacebar and scroll to zoom in/out
   • Prevents default page scroll when spacebar is pressed
   • Works seamlessly alongside existing Alt+scroll zoom

2. Enhanced Pinch-to-Zoom ✅

   • Added support for trackpad pinch gestures (Ctrl+wheel events)
   • Compatible with modern wheel event API
   • Maintains backward compatibility with legacy mousewheel events

Testing Results:

• ✅ Space+scroll successfully zooms the workspace
• ✅ Ctrl+wheel (trackpad pinch) properly handles zoom
• ✅ Zoom scale changes confirmed (0.9 → 1.0 → 1.1 → 1.2)
• ✅ No conflicts with existing zoom methods
• ✅ Grid scales appropriately with zoom level

Files Modified:

• packages/node_modules/@node-red/editor-client/src/js/ui/view.js

The changes have been pushed to branch claude/issue-44-20250923-1243.

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Job • Branch

[claude]

Claude finished @dimitrieh's task —— View job

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Screenshots Captured Successfully ✅

Task List

• Read plan.md to understand the implemented changes
• Verify Node-RED is running on localhost:1880
• Identify UI areas that were modified based on implementation
• Take screenshots at Desktop resolution (1920x1080)
• Take screenshots at Laptop resolution (1440x900)
• Take screenshots at Tablet resolution (768x1024)
• Take screenshots at Mobile resolution (375x667)

Summary

I've successfully captured screenshots of the Node-RED interface showing the current state after the zoom feature implementation. The screenshots have been saved with the following naming convention:

Main Workspace Area Screenshots:

• ✅ after-1-desktop.png - Desktop resolution (1920x1080)
• ✅ after-1-laptop.png - Laptop resolution (1440x900)
• ✅ after-1-tablet.png - Tablet resolution (768x1024)
• ✅ after-1-mobile.png - Mobile resolution (375x667)

All screenshots show the main Node-RED workspace with:

• The flow editor canvas (where zoom features are applied)
• Node palette on the left sidebar
• Info panel on the right sidebar
• Top navigation bar with Deploy button
• Grid background that scales with zoom

The screenshots are saved in the .playwright-mcp directory and document the current state of the Node-RED interface with the implemented pinch and space-scroll zoom functionality as described in the plan.md implementation plan.

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View job

[github-actions]

Experiment Deployed

Your Node-RED experiment is now live at:
https://nr-claude-issue-44-20250923-1243.tailbfedba.ts.net

View all experiments: https://dashboard.tailbfedba.ts.net

This deployment will automatically expire in 7 days.

---

Create PR via URL (Avoids fork detection)

Go directly to:
https://github.com/dimitrieh/node-red/compare/experiment-template...claude/issue-44-20250923-1243?expand=1

This URL pattern keeps it within your repo.

---

Branch: claude-issue-44-20250923-1243
Deployed: 2025-09-23 12:51:11 UTC

[github-actions]

Experiment Deployed

Your Node-RED experiment is now live at:
https://nr-claude-issue-44-20250923-1243-2.tailbfedba.ts.net

View all experiments: https://dashboard.tailbfedba.ts.net

This deployment will automatically expire in 7 days.

---

Create PR via URL (Avoids fork detection)

Go directly to:
https://github.com/dimitrieh/node-red/compare/experiment-template...claude/issue-44-20250923-1243-2?expand=1

This URL pattern keeps it within your repo.

---

Branch: claude-issue-44-20250923-1243-2
Deployed: 2025-09-23 14:39:19 UTC

[github-actions]

Experiment Deployed

Your Node-RED experiment is now live at:
https://nr-claude-issue-44-20250923-1243-2.tailbfedba.ts.net

View all experiments: https://dashboard.tailbfedba.ts.net

This deployment will automatically expire in 7 days.

---

Create PR via URL (Avoids fork detection)

Go directly to:
https://github.com/dimitrieh/node-red/compare/experiment-template...claude/issue-44-20250923-1243-2?expand=1

This URL pattern keeps it within your repo.

---

Branch: claude-issue-44-20250923-1243-2
Deployed: 2025-09-23 16:52:27 UTC