feat(js): register canvas elements in standalone session via specialHTMTargets#46
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jspanchu wants to merge 1 commit into
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feat(js): register canvas elements in standalone session via specialHTMTargets#46jspanchu wants to merge 1 commit into
jspanchu wants to merge 1 commit into
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…TMLTargets Add `StandaloneSession.registerCanvas(key, canvas)` so callers can bind a canvas element directly — without requiring a DOM `id` — using Emscripten's `specialHTMLTargets` map. The key (must start with `!`) is then passed as `canvasSelector` to `vtkRenderWindow`/`vtkRenderWindowInteractor`. For the annotation auto-load path, `vtkwasm.session` is now exported alongside `vtkwasm.ready` so `session.registerCanvas()` is reachable after awaiting ready. Requires https://gitlab.kitware.com/vtk/vtk/-/merge_requests/13345 for `specialHTMLTargets` to be present in the VTK.wasm binary.
jourdain
approved these changes
Jun 19, 2026
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Enables canvas without
idin standalone sessionsStandaloneSession.registerCanvas(key, canvas)so callers can bind a canvas element directly — without requiring a DOMid— using Emscripten'sspecialHTMLTargetsmap. The key (must start with!) is then passed ascanvasSelectortovtkRenderWindow/vtkRenderWindowInteractor.vtkwasm.sessionis now exported alongsidevtkwasm.readysosession.registerCanvas()is reachable after awaiting ready.specialHTMLTargetsto be present in the VTK.wasm binary.