protected virtual void OnScriptDialogOpening(ScriptDialogOpeningEventArgs e)
{
if (ScriptDialogOpening != null)
{
ScriptDialogOpening(this, e);
}
}
/// <summary>
/// Called to run a dialog asking the user if they want to leave a page.
/// </summary>
/// <param name="browser">The browser.</param>
/// <param name="messageText">The message of the dialog box.</param>
/// <param name="isReload">Indicates that the method is called before page reloading.</param>
/// <param name="callback">
/// If a custom dialog is used the application must execute <paramref name="callback"/> once the custom dialog is dismissed.
/// </param>
/// <returns>
/// Return false to use the default dialog implementation. Return true if the application will
/// use a custom dialog or if the callback has been executed immediately.
/// </returns>
/// <remarks>Custom dialogs may be either modal or modeless.</remarks>
internal protected virtual bool OnBeforeUnloadDialog(CefBrowser browser, string messageText, bool isReload, CefJSDialogCallback callback)
{
ScriptDialogDeferral dialogDeferral = CreateScriptDialogDeferral(callback);
var ea = new ScriptDialogOpeningEventArgs(messageText, isReload, dialogDeferral);
WebView.RaiseScriptDialogOpening(ea);
if (!ea.Handled)
{
((IDisposable)dialogDeferral).Dispose();
}
return(ea.Handled);
}
/// <summary>
/// Called to run a JavaScript dialog. Return true if the application will use a custom dialog or
/// if the callback has been executed immediately. Custom dialogs may be either modal or modeless.
/// If a custom dialog is used the application must execute <paramref name="callback"/> once the
/// custom dialog is dismissed.
/// </summary>
/// <param name="browser"></param>
/// <param name="originUrl">
/// If <paramref name="originUrl"/> is non-empty it can be passed to the CefFormatUrlForSecurityDisplay
/// function to retrieve a secure and user-friendly display string.
/// </param>
/// <param name="dialogType"></param>
/// <param name="messageText"></param>
/// <param name="defaultPromptText">
/// The <paramref name="defaultPromptText"/> value will be specified for prompt dialogs only.
/// </param>
/// <param name="callback"></param>
/// <param name="suppressMessage">
/// Set <paramref name="suppressMessage"/> to 1 and return false to suppress the message (suppressing messages
/// is preferable to immediately executing the callback as this is used to detect presumably malicious behavior
/// like spamming alert messages in onbeforeunload). Set <paramref name="suppressMessage"/> to 0 and return false
/// to use the default implementation (the default implementation will show one modal dialog at a time and suppress
/// any additional dialog request until the displayed dialog is dismissed).
/// </param>
/// <returns></returns>
internal protected virtual bool OnJSDialog(CefBrowser browser, string originUrl, CefJSDialogType dialogType, string messageText, string defaultPromptText, CefJSDialogCallback callback, ref int suppressMessage)
{
ScriptDialogDeferral dialogDeferral = CreateScriptDialogDeferral(callback);
var ea = new ScriptDialogOpeningEventArgs(originUrl, (ScriptDialogKind)dialogType, messageText, defaultPromptText, dialogDeferral);
WebView.RaiseScriptDialogOpening(ea);
suppressMessage = ea.Suppress ? 1 : 0;
if (!ea.Handled)
{
((IDisposable)dialogDeferral).Dispose();
}
return(ea.Handled);
}
private void BrowserControl_ScriptDialogOpening(object sender, ScriptDialogOpeningEventArgs e)
{
// Capture Captcha here.
}
