131 lines
3.3 KiB
Go
131 lines
3.3 KiB
Go
package chromedp
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
|
|
"github.com/chromedp/cdproto/cdp"
|
|
"github.com/chromedp/cdproto/page"
|
|
)
|
|
|
|
// Navigate navigates the current frame.
|
|
func Navigate(urlstr string) Action {
|
|
return ActionFunc(func(ctx context.Context, h cdp.Executor) error {
|
|
_, _, _, err := page.Navigate(urlstr).Do(ctx, h)
|
|
return err
|
|
})
|
|
}
|
|
|
|
// NavigationEntries is an action to retrieve the page's navigation history
|
|
// entries.
|
|
func NavigationEntries(currentIndex *int64, entries *[]*page.NavigationEntry) Action {
|
|
if currentIndex == nil || entries == nil {
|
|
panic("currentIndex and entries cannot be nil")
|
|
}
|
|
|
|
return ActionFunc(func(ctx context.Context, h cdp.Executor) error {
|
|
var err error
|
|
*currentIndex, *entries, err = page.GetNavigationHistory().Do(ctx, h)
|
|
return err
|
|
})
|
|
}
|
|
|
|
// NavigateToHistoryEntry is an action to navigate to the specified navigation
|
|
// entry.
|
|
func NavigateToHistoryEntry(entryID int64) Action {
|
|
return page.NavigateToHistoryEntry(entryID)
|
|
}
|
|
|
|
// NavigateBack navigates the current frame backwards in its history.
|
|
func NavigateBack() Action {
|
|
return ActionFunc(func(ctx context.Context, h cdp.Executor) error {
|
|
cur, entries, err := page.GetNavigationHistory().Do(ctx, h)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if cur <= 0 || cur > int64(len(entries)-1) {
|
|
return errors.New("invalid navigation entry")
|
|
}
|
|
|
|
return page.NavigateToHistoryEntry(entries[cur-1].ID).Do(ctx, h)
|
|
})
|
|
}
|
|
|
|
// NavigateForward navigates the current frame forwards in its history.
|
|
func NavigateForward() Action {
|
|
return ActionFunc(func(ctx context.Context, h cdp.Executor) error {
|
|
cur, entries, err := page.GetNavigationHistory().Do(ctx, h)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if cur < 0 || cur >= int64(len(entries)-1) {
|
|
return errors.New("invalid navigation entry")
|
|
}
|
|
|
|
return page.NavigateToHistoryEntry(entries[cur+1].ID).Do(ctx, h)
|
|
})
|
|
}
|
|
|
|
// Stop stops all navigation and pending resource retrieval.
|
|
func Stop() Action {
|
|
return page.StopLoading()
|
|
}
|
|
|
|
// Reload reloads the current page.
|
|
func Reload() Action {
|
|
return page.Reload()
|
|
}
|
|
|
|
// CaptureScreenshot captures takes a screenshot of the current viewport.
|
|
//
|
|
// Note: this an alias for page.CaptureScreenshot.
|
|
func CaptureScreenshot(res *[]byte) Action {
|
|
if res == nil {
|
|
panic("res cannot be nil")
|
|
}
|
|
|
|
return ActionFunc(func(ctx context.Context, h cdp.Executor) error {
|
|
var err error
|
|
*res, err = page.CaptureScreenshot().Do(ctx, h)
|
|
return err
|
|
})
|
|
}
|
|
|
|
// AddOnLoadScript adds a script to evaluate on page load.
|
|
/*func AddOnLoadScript(source string, id *page.ScriptIdentifier) Action {
|
|
if id == nil {
|
|
panic("id cannot be nil")
|
|
}
|
|
|
|
return ActionFunc(func(ctx context.Context, h cdp.Executor) error {
|
|
var err error
|
|
*id, err = page.AddScriptToEvaluateOnLoad(source).Do(ctx, h)
|
|
return err
|
|
})
|
|
}
|
|
|
|
// RemoveOnLoadScript removes a script to evaluate on page load.
|
|
func RemoveOnLoadScript(id page.ScriptIdentifier) Action {
|
|
return page.RemoveScriptToEvaluateOnLoad(id)
|
|
}*/
|
|
|
|
// Location retrieves the document location.
|
|
func Location(urlstr *string) Action {
|
|
if urlstr == nil {
|
|
panic("urlstr cannot be nil")
|
|
}
|
|
|
|
return EvaluateAsDevTools(`document.location.toString()`, urlstr)
|
|
}
|
|
|
|
// Title retrieves the document title.
|
|
func Title(title *string) Action {
|
|
if title == nil {
|
|
panic("title cannot be nil")
|
|
}
|
|
|
|
return EvaluateAsDevTools(`document.title`, title)
|
|
}
|