drag - kubed-io/selenium-flow GitHub Wiki
Drag an element onto another element (to), or by an offset in pixels (by_x, by_y); give one or the other. A range slider is by_x; a card into a column is to.
| MCP tool | drag |
| HTTP | POST /browser/drag |
The pointer presses, glides and releases with short holds at each end, which drag libraries need. On Chrome this also completes native HTML5 drag-and-drop; on Firefox it does not, so a draggable=true element there may need the page's own fallback.
| Name | Type | Required | Default |
|---|---|---|---|
selector |
Selector | no | โ |
to |
Selector | no | โ |
by_x |
integer | no | โ |
by_y |
integer | no | โ |
url |
string | no | โ |
wait_timeout |
integer | no | 30 |
glide |
boolean | no | true |
Every call names its workspace: an X-Workspace header, or
?workspace=<name>. Sending both is refused. See Workspaces.
| Field | Type | Notes |
|---|---|---|
from |
object | Where the drag started, in viewport pixels. |
to |
object | Where it was released, in viewport pixels. |
glided |
boolean | Whether the travel was incremental. |
clamped |
string | Present when the destination was outside the window, so the drag stopped at its edge. |
url |
string | Current URL after the action. |
title |
string | Page title after the action. |
site_data |
object | Present only when site data was restored, skipped or forgotten in this call. |
page |
object | Present only when this browser was opened with capture=true and the page reported a failure while the call ran: what it caused, and where to read it. |
| Status | Means |
|---|---|
400 |
The request cannot succeed as sent โ a missing field, a value that was rejected, or a locator that matched nothing before the wait ran out. Do not retry it unchanged. |
401 |
Missing or wrong bearer token. |
404 |
No such browser session. It ended, the Grid reaped it, or the id was never real. Open a new one and retry. |
413 |
The body is over its cap: 1 MiB of JSON, 64 MiB of upload, 1 MiB of flow YAML. Send less; retrying it unchanged will fail again. |
500 |
Something failed that this server did not expect. |
503 |
The Grid could not serve this โ unreachable, or no free slot for a new browser. Worth retrying after a wait. |
Over MCP the same failures arrive as a tool error.
MCP
drag()
HTTP
curl -X POST $SELENIUM_FLOW/browser/drag \
-H "Authorization: Bearer $TOKEN" \
-H "X-Workspace: $WORKSPACE"