refactor: decompose main.js monolithic file (#85) #117
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Add modeColumn, guidanceColumn, and controlsColumn property declarations to GramFrame constructor to resolve TypeScript compilation errors after UI module extraction.
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Pull Request Overview
Refactors the monolithic src/main.js file by extracting UI creation and viewport management functionality into dedicated modules to improve maintainability and separation of concerns.
- Extracted UI layout creation logic to
src/components/MainUI.js - Extracted zoom/pan viewport functionality to
src/core/viewport.js - Updated event handling to use the extracted functions
Reviewed Changes
Copilot reviewed 9 out of 9 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| src/types.js | Added JSDoc type definitions for new UI column properties |
| src/main.js | Refactored to use extracted modules, removing inline UI and viewport code |
| src/core/viewport.js | New module containing all zoom/pan/resize functionality |
| src/core/events.js | Updated to import and use extracted MainUI functions |
| src/components/MainUI.js | New module containing unified layout creation and UI management |
| prompts/tasks/Task_Issue_85.md | Added task documentation for the refactoring work |
| package.json | Version bump from 0.1.1 to 0.1.2 |
| Memory_Bank.md | Added log entry documenting the completed refactoring |
| .claude/settings.local.json | Added git tag bash command to allowed operations |
| * @property {HTMLDivElement|null} [middleColumn] - Middle column layout | ||
| * @property {HTMLDivElement|null} [rightColumn] - Right column layout | ||
| * @property {HTMLDivElement|null} [modeColumn] - Mode buttons column | ||
| * @property {HTMLDivElement|null} [guidanceColumn] - Guidance text column |
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There's an extra space at the end of the line after 'column'.
Suggested change
| * @property {HTMLDivElement|null} [guidanceColumn] - Guidance text column | |
| * @property {HTMLDivElement|null} [guidanceColumn] - Guidance text column |
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Comment on lines
+68
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+69
| colorPicker.querySelector('.gram-frame-color-picker-label').textContent = 'Color' | ||
| controlsColumn.appendChild(colorPicker) |
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The colorPicker creation and subsequent querySelector operation should be documented or validated. If createColorPicker can return null or if the querySelector might fail, this should be handled appropriately.
Suggested change
| colorPicker.querySelector('.gram-frame-color-picker-label').textContent = 'Color' | |
| controlsColumn.appendChild(colorPicker) | |
| if (colorPicker) { | |
| const labelElem = colorPicker.querySelector('.gram-frame-color-picker-label'); | |
| if (labelElem) { | |
| labelElem.textContent = 'Color'; | |
| } else { | |
| console.warn('Color picker label element not found.'); | |
| } | |
| controlsColumn.appendChild(colorPicker); | |
| } else { | |
| console.warn('Failed to create color picker.'); | |
| } |
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Summary
Decomposed the monolithic
src/main.jsfile from 695 lines to 492 lines (203-line reduction) by extracting UI creation and viewport management into dedicated modules while preserving all functionality and maintaining backward compatibility.Changes
src/components/MainUI.js(224 lines) - UI layout creation functions includingcreateUnifiedLayout(),updateUniversalCursorReadouts(), andupdatePersistentPanels()src/core/viewport.js(107 lines) - All zoom/pan functionality includingzoomIn(),zoomOut(),setZoom(),handleResize(), andupdateAxes()src/core/events.js- Updated to use extracted MainUI functions while maintaining event delegation patternsArchitecture Improvements
Test Results
Test Plan
Closes #85