Protocol Reference

This document describes the postMessage communication protocol between the Dino-GSP embedded canvas and the parent page.

Type definitions (e.g. FileContent, Slide) are available in the algeo-protocol repository.

Error Codes (Embed Protocol)

Code	Description
EMBED_LOAD_SHARE_FAILED	Load share failed (share not found, parse error, etc.; loadShareById)
EMBED_LOAD_FILE_FAILED	Load file failed (invalid content; loadFile)
EMBED_APPLY_CONTENT_FAILED	Failed to apply content to canvas
EMBED_SWITCH_SLIDE_FAILED	Switch slide failed
EMBED_INVALID_SLIDE_INDEX	Invalid slide index
EMBED_GET_SLIDE_COUNT_FAILED	Failed to get slide count
EMBED_INVALID_REPL_COMMAND	Invalid REPL command (empty or non-string)
EMBED_REPL_EXECUTE_FAILED	REPL execution failed
EMBED_UNKNOWN_METHOD	Unknown postMessage method
EMBED_UNKNOWN_ERROR	Unknown error
EMBED_BAD_REQUEST	Bad request
EMBED_IFRAME_NOT_READY	iframe not ready
EMBED_TIMEOUT	Request timeout
EMBED_DESTROYED	Instance destroyed