Container Widget Drop Testing Guide

Test Scenario 1: Palette → Container (Creating NEW widgets) ✅

Steps:

1. Open the editor at http://localhost:5200/editor

2. Create a Container Widget:

   • Drag "Container" from the Widget Library (left panel)
   • Drop it on the canvas
   • The container should appear with "Contenedor vacío" message

3. Drag a NEW widget from palette:

   • Find "Text Widget" in the Widget Library
   • Start dragging it
   • Hover over the container widget

Expected Console Logs:

[DropZone] handleDragEnter called
[ContainerWidget] 🔵 onDropEnter - widget hovering over container
[DropZone] handleDragOver called
[ContainerWidget] onDropOver

4. Drop the widget inside the container:
   • Release the mouse

Expected Console Logs:

[Canvas] Drop target is inside container - letting container handle it
[DropZone] handleDrop called
[ContainerWidget] 🎯 onDropped called!
[ContainerWidget] ✅ Creating widget from drop
[ContainerWidget] Widget created

Expected Result:

• ✅ Text widget appears INSIDE the container
• ✅ Widget Tree shows Text as child of Container
• ✅ Container's children array includes the text widget ID

Test Scenario 2: Existing Widget → Container (Re-parenting) ⚠️

Current Status: NOT IMPLEMENTED YET

This scenario requires additional work:

1. ResponsiveDraggableDirective uses mouse events (not HTML5 drag)
2. Container DropZoneDirective expects HTML5 drag events
3. These two systems are incompatible

Workaround (Manual Parent Selection):

A UI control will be added to the properties panel to manually change a widget's parent.

Debugging Tips

If drop doesn't work:

1. Check console for logs - Look for:

   • [DropZone] handleDrop called
   • [ContainerWidget] onDropped called

2. Check container config:

   • Open browser DevTools
   • Select the container element
   • Check if allowDrop: true in the component

3. Check z-index:

   • Container should have z-index: 5
   • Canvas children should have z-index: 2

4. Check pointer-events:

   • Container should have pointer-events: auto
   • Drop zone should be active

Common Issues:

Next Steps

1. ✅ Test Palette → Container
2. ⏳ Add Parent Selector UI (Option C)
3. ⏳ Implement Drag-based Re-parenting (Option A)

Session: 12.12
Status: Testing in progress