egutierrez
bf1efb2099
- Migration 007: repo_url on apps table + analysis table with FTS5 - Analysis struct, parser, CRUD, validation, hash computation - Selective purge: remote-only apps/analysis preserved across fn index - CLI: fn app list/clone/pull, fn analysis list/clone/pull - search/show/list now include analysis results - Apps removed from git tracking (content lives in Gitea repos) - .gitkeep for apps/ and analysis/ dirs - Bash functions: jupyter analysis pipeline, shell utilities - Browser domain: CDP functions moved from infra to browser Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
38 lines
1.3 KiB
Markdown
38 lines
1.3 KiB
Markdown
---
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name: cdp_wait_element
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kind: function
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lang: go
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domain: browser
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version: "1.0.0"
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purity: impure
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signature: "func CdpWaitElement(c *CDPConn, selector string, timeout time.Duration) error"
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description: "Espera hasta que un selector CSS exista en el DOM. Hace polling con Runtime.evaluate cada 200ms. Retorna nil cuando el elemento aparece o error si se agota el timeout. Util despues de navegacion o acciones que producen cambios dinamicos."
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tags: [chrome, cdp, browser, automation, dom, wait, polling, devtools]
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uses_functions: [cdp_connect_go_browser, cdp_evaluate_go_browser]
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uses_types: []
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returns: []
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returns_optional: false
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error_type: "error_go_core"
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imports: [fmt, time]
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tested: false
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tests: []
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test_file_path: ""
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file_path: "functions/infra/cdp_wait_element.go"
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---
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## Ejemplo
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```go
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conn, _ := CdpConnect(9222)
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CdpNavigate(conn, "https://example.com")
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// Esperar hasta 10 segundos a que aparezca el contenido
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if err := CdpWaitElement(conn, ".main-content", 10*time.Second); err != nil {
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log.Fatal("Timeout esperando elemento:", err)
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}
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```
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## Notas
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Usa `document.querySelector(selector) !== null` como condicion. Si `timeout <= 0` usa 10s por defecto. Los errores de `CdpEvaluate` durante el polling (pagina cargando) se ignoran y se reintenta en el siguiente ciclo.
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