arcast/pkg/browser/lorca/browser.go

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package lorca
import (
"context"
"forge.cadoles.com/arcad/arcast/pkg/browser"
"github.com/pkg/errors"
"github.com/zserge/lorca"
"gitlab.com/wpetit/goweb/logger"
)
type Browser struct {
ui lorca.UI
status browser.Status
opts *Options
}
func (b *Browser) Start() error {
logger.Debug(context.Background(), "starting browser", logger.F("opts", b.opts))
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ui, err := lorca.New(
lorca.WithWindowSize(b.opts.Width, b.opts.Height),
lorca.WithAdditionalCustomArgs(b.opts.ChromeArgs...),
)
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if err != nil {
return errors.WithStack(err)
}
b.ui = ui
return nil
}
func (b *Browser) Stop() error {
if err := b.ui.Close(); err != nil {
return errors.WithStack(err)
}
b.ui = nil
return nil
}
func (b *Browser) Wait() {
<-b.ui.Done()
}
// Load implements browser.Browser.
func (b *Browser) Load(url string) error {
if err := b.ui.Load(url); err != nil {
return errors.WithStack(err)
}
b.status = browser.StatusCasting
return nil
}
// Unload implements browser.Browser.
func (b *Browser) Reset(url string) error {
if err := b.ui.Load(url); err != nil {
return errors.WithStack(err)
}
b.status = browser.StatusIdle
return nil
}
// Status implements browser.Browser.
func (b *Browser) Status() (browser.Status, error) {
return b.status, nil
}
// Title implements browser.Browser.
func (b *Browser) Title() (string, error) {
result := b.ui.Eval("document.title.toString()")
if err := result.Err(); err != nil {
return "", errors.WithStack(err)
}
return result.String(), nil
}
// URL implements browser.Browser.
func (b *Browser) URL() (string, error) {
result := b.ui.Eval("window.location.toString()")
if err := result.Err(); err != nil {
return "", errors.WithStack(err)
}
return result.String(), nil
}
func NewBrowser(funcs ...OptionsFunc) *Browser {
opts := NewOptions(funcs...)
return &Browser{
status: browser.StatusIdle,
opts: opts,
}
}
var _ browser.Browser = &Browser{}