mirror of
https://github.com/MontFerret/ferret.git
synced 2025-02-07 13:31:56 +02:00
24d8eedd4c
* Added release notes * #509 fixedOCOD typo * Updated values * Updated comments * Changed stdlib docs format * Changed format of array in docs * Use 'any' instead of 'value' in docs * New format for optional params * Updated docs for testing package * Added namespace information
48 lines
1.1 KiB
Go
48 lines
1.1 KiB
Go
package html
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import (
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"context"
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"github.com/MontFerret/ferret/pkg/drivers"
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"github.com/MontFerret/ferret/pkg/runtime/core"
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"github.com/MontFerret/ferret/pkg/runtime/values"
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"github.com/MontFerret/ferret/pkg/runtime/values/types"
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)
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// ELEMENT finds an element by a given CSS selector.
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// Returns NONE if element not found.
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// @param {HTMLPage | HTMLDocument | HTMLElement} node - Target html node.
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// @param {String} selector - CSS selector.
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// @return {HTMLElement} - A matched HTML element
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func Element(ctx context.Context, args ...core.Value) (core.Value, error) {
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el, selector, err := queryArgs(args)
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if err != nil {
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return values.None, err
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}
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return el.QuerySelector(ctx, selector)
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}
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func queryArgs(args []core.Value) (drivers.HTMLElement, values.String, error) {
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err := core.ValidateArgs(args, 2, 2)
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if err != nil {
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return nil, values.EmptyString, err
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}
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el, err := drivers.ToElement(args[0])
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if err != nil {
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return nil, values.EmptyString, err
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}
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err = core.ValidateType(args[1], types.String)
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if err != nil {
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return nil, values.EmptyString, err
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}
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return el, args[1].(values.String), nil
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}
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