User: "scrolling is not working" in Chrome DevTools mobile simulation.
Three actual problems:
1. Plant Overview columns had max-height: calc(100vh - 180px) +
overflow: hidden, with a nested overflow-y: auto on the column
body. Classic Trello kanban pattern — works on desktop, breaks
on mobile. You get two scroll containers fighting each other and
the PAGE itself can't scroll past the viewport height.
2. .o_fp_po_columns had overflow-x: auto on all widths. On the
phone-stack breakpoint (<600px) this was also still on, creating
another nested scroll container.
3. Draggable cards can swallow touch events on mobile because
touch-action defaults to "auto" and Chrome's mobile simulator
treats touch on draggable elements as potential drag-start.
Fixes — all at the <=900px breakpoint (tablets + phones):
.o_fp_po_column max-height: none; overflow: visible
.o_fp_po_col_body overflow-y: visible
.o_fp_po_columns flex-direction: column; overflow: visible
Plus .o_fp_po_card carries `touch-action: pan-y` unconditionally —
touch-scroll gestures never get hijacked by the draggable="true"
attribute. Desktop mousedown drag still works (HTML5 drag-drop
isn't touch-based by default).
Also added -webkit-overflow-scrolling: touch to all three page
roots (.o_fp_tablet, .o_fp_manager, .o_fp_plant_overview) and to
the internal scroll containers that remain on desktop — gives iOS
Safari proper momentum scroll (11 occurrences in the compiled
bundle).
Drag-drop JS preventDefault calls audited — they only fire on
dragover/drop (HTML5 drag events), which don't exist on touch by
default, so no touch interference there.
Verified via compiled CSS:
.o_fp_po_card { touch-action: pan-y; ... }
@media (max-width: 900px) .o_fp_po_column { overflow-x: visible;
overflow-y: visible; min-height: auto }
@media (max-width: 900px) .o_fp_po_col_body { overflow-y: visible }
Version bumped 19.0.5.0.0 -> 19.0.6.0.0 to force the bundle hash
to change. New URL: /web/assets/4a1b69e/web.assets_backend.min.css
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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