Keep the persistent selection indicator above retail's waiting mesh, use the normal green accept circle for backpack-grid placement, and reserve the green drop-in arrow for bag-column containers as ItemList_DragOver does.
Co-Authored-By: Codex <codex@openai.com>
Keep retail's underlay-free m_pDragIcon separate from the full cell icon and reveal the authored ghost mesh on physical source cells for the complete drag lifecycle. This removes the backpack backing from the cursor and retires AP-47.
Co-Authored-By: Codex <codex@openai.com>
Port global toolbar use/select/create actions, migrate the collapsed Ctrl-number bindings, and route them through a focused retained-UI controller. Preserve shortcut aliases as aliases across inventory and paperdoll drops with retail's neutral/accept/reject drag states, preventing physical item moves such as unwielding an equipped helmet.
Co-Authored-By: Codex <codex@openai.com>
Found at visual verification: an occupied UiItemSlot sits inside the Draggable
toolbar frame (UiNineSlicePanel.Draggable=true), so UiRoot.OnMouseDown's FindWindow
returned the frame and the window-move branch won — press+drag on a slot moved the
whole bar instead of picking up the item. The slot wasn't CapturesPointerDrag (that
path is for self-driven text-selection and suppresses the BeginDrag promotion), and
UiRoot had no path for "a drag-source inside a draggable window."
Fix: add UiElement.IsDragSource (virtual, default false); UiItemSlot overrides it to
`ItemId != 0` (occupancy-gated). UiRoot.OnMouseDown now prioritizes IsDragSource over
window-move — an OCCUPIED slot starts the item drag (promotes to BeginDrag on >3px),
an EMPTY slot falls through to the IA-12 whole-window-drag so the bar stays movable
by its empty cells / chrome. UiRoot stays item-agnostic (reads only the bool). This
REDUCES divergence (occupied cells now drag like retail) within IA-12's umbrella — no
new register row.
Regression tests reproduce the LIVE topology (slot inside a Draggable frame); the
earlier RootWithBoundSlot tests put the slot directly under the root, so they could
not catch it. Full suite 493 pass / 0 fail / 2 skip.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- UiElement: two new virtuals GetDragPayload()/GetDragGhost() (default null)
keep UiRoot item-agnostic; any leaf can opt into drag by overriding these.
- UiItemSlot: SlotIndex + SourceKind properties for payload identity; two
overrides return ItemDragPayload / icon ghost when the slot is occupied.
FindList() walks the parent chain to locate the owning UiItemList and its
registered IItemListDragHandler.
- UiItemSlot.OnEvent: MouseDown now just consumes the press; use-item fires
on Click (mouse-up) so a drag doesn't also trigger the use-item callback.
DragEnter → ask handler, set Accept/Reject overlay. DragOver → reset to
None (fires on leave). DropReleased → clear overlay + dispatch to handler
when Data0 == 1 (accepted). DragBegin consumed (source).
- OnDraw: accept/reject sprite overlay drawn last, guarded on id != 0 to
avoid the resolve(0)-→-magenta footgun.
- ToolbarControllerTests: Click_emitsUseForBoundItem changed from MouseDown
to Click to match the new dispatch.
- 12 new DragDropSpineTests pass; full suite 481/483 (2 pre-existing skips).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
