* fix(v3): overhaul drag-and-drop for Linux reliability and simplify Windows This commit fixes drag-and-drop reliability on Linux and simplifies the Windows implementation. ## Linux - Rewrite GTK drag handlers to properly intercept external file drops - Fix HTML5 internal drag-and-drop being broken when file drop enabled - Add hover effects during file drag operations - Fix multiple app instances interfering with each other ## Windows - Remove native IDropTarget in favor of JavaScript approach (matches v2) - File drops now handled via chrome.webview.postMessageWithAdditionalObjects ## All Platforms - Rename EnableDragAndDrop to EnableFileDrop - Rename data-wails-drop-target to data-file-drop-target - Rename wails-drop-target-active to file-drop-target-active - Add comprehensive drag-and-drop documentation ## Breaking Changes - EnableDragAndDrop -> EnableFileDrop - data-wails-dropzone -> data-file-drop-target - wails-dropzone-hover -> file-drop-target-active - DropZoneDetails -> DropTargetDetails - Remove WindowDropZoneFilesDropped event (use WindowFilesDropped) * feat(macos): optimize drag event performance with debouncing and caching - Add 50ms debouncing to limit drag events to 20/sec (was 120/sec) - Implement window implementation caching to avoid repeated lookups - Maintain existing 5-pixel threshold for immediate response - Keep zero-allocation path with pre-allocated buffers - Rename linuxDragActive to nativeDragActive for clarity - Update IMPLEMENTATION.md with optimization details and Windows guidance Performance improvements: - 83% reduction in event frequency - ~6x reduction in CPU/memory usage during drag operations - Maintains smooth visual feedback with InvokeSync for timer callbacks * fix(windows): implement proper file drop support for Windows - Remove incorrect AllowExternalDrag(false) call that was blocking file drops - Fix message prefix from 'FilesDropped' to 'file:drop:' to match JS runtime - Fix coordinate parsing for 'file:drop:x:y' format (indices 2,3 not 1,2) - Add enableFileDrop flag injection to JS runtime during navigation - Update JS runtime to check enableFileDrop flag before processing drops - Always call preventDefault() to stop browser navigation on file drags - Show 'no drop' cursor when file drops are disabled - Update example to filter file drags from HTML drop zone handlers - Add documentation for combining file drop with HTML drag-and-drop * fix(v3): block file drops on Linux when EnableFileDrop is false - Add disableDND() to intercept and reject external file drags at GTK level - Show 'no drop' cursor when files are dragged over window - Allow internal HTML5 drag-and-drop to work normally - Initialize _wails.flags object in runtime core to prevent undefined errors - Inject enableFileDrop flag on Linux and macOS (matching Windows) - Fix bare _wails reference to use window._wails - Update docs with info about blocked drops and combining with HTML DnD * fix(darwin): add missing fmt import in webview_window_darwin.go * fix(macOS): implement hover effects for file drag-and-drop with optimizations - Added draggingUpdated: handler to track mouse movement during drag operations - Implemented macosOnDragEnter/Exit/Over export functions for real-time hover state - Fixed JS function call from '_wails.handlePlatformFileDrop' to correct 'wails.Window.HandlePlatformFileDrop' - Added EnableFileDrop flag checks to prevent hover effects when file drops are disabled - Renamed linuxDragActive to nativeDragActive for cross-platform consistency Performance optimizations: - Added 50ms debounce to reduce event frequency from ~120/sec to ~20/sec - Implemented 5-pixel movement threshold for immediate response - Added window caching with sync.Map to avoid repeated lookups - Zero-allocation JavaScript calls with pre-allocated 128-byte buffer - Reduced memory usage to ~18 bytes per event (6x reduction) Build improvements: - Updated runtime Taskfile to include documentation generation - Added docs:build task to runtime build process - Fixed build order: events → docs → runtime Documentation: - Added IMPLEMENTATION.md with optimization details - Included guidance for Windows implementation * chore(v3/examples): remove html-dnd-api example The drag-n-drop example now demonstrates both external file drops and internal HTML5 drag-and-drop, making this separate example redundant. * docs(v3): move drag-and-drop implementation details to runtime-internals - Add drag-and-drop section to contributing/runtime-internals.mdx - Remove IMPLEMENTATION.md from example (content now in proper docs) - Covers platform differences, debugging tips, and key files * fix(v3): remove html-dnd-api from example build list * fix(v3): remove duplicate json import in application_darwin.go * fix(v3): address CodeRabbit review feedback - Fix docs to use app.Window.NewWithOptions() instead of deprecated API - Add mutex protection to dragOverJSBuffer to prevent race conditions - Add mutex protection to dragThrottleState fields for thread safety * docs: add coderabbit pre-push requirement to AGENTS.md * fix(v3/test): use correct CSS class name file-drop-target-active * chore(v3/test): remove dnd-test directory This was a development test file that shouldn't be in the PR. The drag-n-drop example serves as the proper test case. * docs(v3): update Windows file drop comment to reflect implemented fix Remove stale TODO - enableFileDrop flag is now injected in navigationCompleted * refactor(v3): make handleDragAndDropMessage unexported Internal method only called by application event loop, not part of public API.
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AI Agent Instructions for Wails v3
Issue Tracking with bd (beads)
IMPORTANT: This project uses bd (beads) for ALL issue tracking. Do NOT use markdown TODOs, task lists, or other tracking methods.
Why bd?
- Dependency-aware: Track blockers and relationships between issues
- Git-friendly: Auto-syncs to JSONL for version control
- Agent-optimized: JSON output, ready work detection, discovered-from links
- Prevents duplicate tracking systems and confusion
Quick Start
Check for ready work:
bd ready --json
Create new issues:
bd create "Issue title" -t bug|feature|task -p 0-4 --json
bd create "Issue title" -p 1 --deps discovered-from:bd-123 --json
bd create "Subtask" --parent <epic-id> --json # Hierarchical subtask (gets ID like epic-id.1)
Claim and update:
bd update bd-42 --status in_progress --json
bd update bd-42 --priority 1 --json
Complete work:
bd close bd-42 --reason "Completed" --json
Issue Types
bug- Something brokenfeature- New functionalitytask- Work item (tests, docs, refactoring)epic- Large feature with subtaskschore- Maintenance (dependencies, tooling)
Priorities
0- Critical (security, data loss, broken builds)1- High (major features, important bugs)2- Medium (default, nice-to-have)3- Low (polish, optimization)4- Backlog (future ideas)
Workflow for AI Agents
- Check ready work:
bd readyshows unblocked issues - Claim your task:
bd update <id> --status in_progress - Work on it: Implement, test, document
- Discover new work? Create linked issue:
bd create "Found bug" -p 1 --deps discovered-from:<parent-id>
- Complete:
bd close <id> --reason "Done" - Commit together: Always commit the
.beads/issues.jsonlfile together with the code changes so issue state stays in sync with code state
Auto-Sync
bd automatically syncs with git:
- Exports to
.beads/issues.jsonlafter changes (5s debounce) - Imports from JSONL when newer (e.g., after
git pull) - No manual export/import needed!
GitHub Copilot Integration
If using GitHub Copilot, also create .github/copilot-instructions.md for automatic instruction loading.
Run bd onboard to get the content, or see step 2 of the onboard instructions.
MCP Server (Recommended)
If using Claude or MCP-compatible clients, install the beads MCP server:
pip install beads-mcp
Add to MCP config (e.g., ~/.config/claude/config.json):
{
"beads": {
"command": "beads-mcp",
"args": []
}
}
Then use mcp__beads__* functions instead of CLI commands.
Managing AI-Generated Planning Documents
AI assistants often create planning and design documents during development:
- PLAN.md, IMPLEMENTATION.md, ARCHITECTURE.md
- DESIGN.md, CODEBASE_SUMMARY.md, INTEGRATION_PLAN.md
- TESTING_GUIDE.md, TECHNICAL_DESIGN.md, and similar files
Best Practice: Use a dedicated directory for these ephemeral files
Recommended approach:
- Create a
history/directory in the project root - Store ALL AI-generated planning/design docs in
history/ - Keep the repository root clean and focused on permanent project files
- Only access
history/when explicitly asked to review past planning
Example .gitignore entry (optional):
# AI planning documents (ephemeral)
history/
Benefits:
- Clean repository root
- Clear separation between ephemeral and permanent documentation
- Easy to exclude from version control if desired
- Preserves planning history for archeological research
- Reduces noise when browsing the project
CLI Help
Run bd <command> --help to see all available flags for any command.
For example: bd create --help shows --parent, --deps, --assignee, etc.
Important Rules
- Use bd for ALL task tracking
- Always use
--jsonflag for programmatic use - Link discovered work with
discovered-fromdependencies - Check
bd readybefore asking "what should I work on?" - Store AI planning docs in
history/directory - Run
bd <cmd> --helpto discover available flags - ALWAYS run
coderabbit --plainbefore committing to get code analysis and catch issues early - Do NOT create markdown TODO lists
- Do NOT use external issue trackers
- Do NOT duplicate tracking systems
- Do NOT clutter repo root with planning documents
For more details, see README.md and QUICKSTART.md.