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writable_stream.go
44 lines (39 loc) · 869 Bytes
/
writable_stream.go
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package playwright
import (
"encoding/base64"
"io"
"os"
)
type writableStream struct {
channelOwner
}
func (s *writableStream) Copy(file string) error {
f, err := os.OpenFile(file, os.O_RDONLY, 0)
if err != nil {
return err
}
defer f.Close()
for {
buf := make([]byte, defaultCopyBufSize)
n, err := f.Read(buf)
if err != nil && err != io.EOF {
return err
}
if n == 0 {
break
}
_, err = s.channel.Send("write", map[string]interface{}{
"binary": base64.StdEncoding.EncodeToString(buf[:n]),
})
if err != nil {
return err
}
}
_, err = s.channel.Send("close")
return err
}
func newWritableStream(parent *channelOwner, objectType string, guid string, initializer map[string]interface{}) *writableStream {
stream := &writableStream{}
stream.createChannelOwner(stream, parent, objectType, guid, initializer)
return stream
}