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ferret/pkg/drivers/common/getter.go

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2.9 KiB
Go
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package common
import (
"context"
"github.com/MontFerret/ferret/pkg/drivers"
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
"github.com/MontFerret/ferret/pkg/runtime/values/types"
)
func GetInDocument(ctx context.Context, doc drivers.HTMLDocument, path []core.Value) (core.Value, error) {
if len(path) == 0 {
return values.None, nil
}
segment := path[0]
if segment.Type() == types.String {
segment := segment.(values.String)
switch segment {
case "url", "URL":
return doc.GetURL(), nil
case "cookies":
if len(path) == 1 {
return doc.GetCookies(ctx)
}
switch idx := path[1].(type) {
case values.Int:
cookies, err := doc.GetCookies(ctx)
if err != nil {
return values.None, err
}
return cookies.Get(idx), nil
default:
return values.None, core.TypeError(idx.Type(), types.Int)
}
case "body":
return doc.QuerySelector(ctx, "body"), nil
case "head":
return doc.QuerySelector(ctx, "head"), nil
default:
return GetInNode(ctx, doc.DocumentElement(), path)
}
}
return GetInNode(ctx, doc.DocumentElement(), path)
}
func GetInElement(ctx context.Context, el drivers.HTMLElement, path []core.Value) (core.Value, error) {
if len(path) == 0 {
return values.None, nil
}
segment := path[0]
if segment.Type() == types.String {
segment := segment.(values.String)
switch segment {
case "innerText":
return el.InnerText(ctx), nil
case "innerHTML":
return el.InnerHTML(ctx), nil
case "value":
return el.GetValue(ctx), nil
case "attributes":
attrs := el.GetAttributes(ctx)
if len(path) == 1 {
return attrs, nil
}
return values.GetIn(ctx, attrs, path[1:])
case "style":
styles, err := el.GetStyles(ctx)
if err != nil {
return values.None, err
}
if len(path) == 1 {
return styles, nil
}
return values.GetIn(ctx, styles, path[1:])
default:
return GetInNode(ctx, el, path)
}
}
return GetInNode(ctx, el, path)
}
func GetInNode(ctx context.Context, node drivers.HTMLNode, path []core.Value) (core.Value, error) {
if len(path) == 0 {
return values.None, nil
}
nt := node.Type()
segment := path[0]
st := segment.Type()
switch st {
case types.Int:
if nt == drivers.HTMLElementType || nt == drivers.HTMLDocumentType {
re := node.(drivers.HTMLNode)
return re.GetChildNode(ctx, segment.(values.Int)), nil
}
return values.GetIn(ctx, node, path[1:])
case types.String:
segment := segment.(values.String)
switch segment {
case "nodeType":
return node.NodeType(), nil
case "nodeName":
return node.NodeName(), nil
case "children":
children := node.GetChildNodes(ctx)
if len(path) == 1 {
return children, nil
}
return values.GetIn(ctx, children, path[1:])
case "length":
return node.Length(), nil
default:
return values.None, nil
}
default:
return values.None, core.TypeError(st, types.Int, types.String)
}
}