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ferret/pkg/stdlib/html/navigate.go

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package html
import (
"context"
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
"github.com/MontFerret/ferret/pkg/stdlib/html/driver/dynamic"
)
/*
* Navigates a document to a new resource.
* The operation blocks the execution until the page gets loaded.
* Which means there is no need in WAIT_NAVIGATION function.
* @param doc (Document) - Target document.
* @param url (String) - Target url to navigate.
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* @param timeout (Int, optional) - Optional timeout. Default is 5000.
*/
func Navigate(_ context.Context, args ...core.Value) (core.Value, error) {
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err := core.ValidateArgs(args, 2, 3)
if err != nil {
return values.None, err
}
err = core.ValidateType(args[0], core.HTMLDocumentType)
if err != nil {
return values.None, err
}
err = core.ValidateType(args[1], core.StringType)
if err != nil {
return values.None, err
}
doc, ok := args[0].(*dynamic.HTMLDocument)
if !ok {
return values.False, core.Errors(core.ErrInvalidType, ErrNotDynamic)
}
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timeout := values.NewInt(defaultTimeout)
if len(args) > 2 {
err = core.ValidateType(args[2], core.IntType)
if err != nil {
return values.None, err
}
timeout = args[2].(values.Int)
}
return values.None, doc.Navigate(args[1].(values.String), timeout)
}