Implement this interface to handle events related to Javascript dialogs. The methods of this class will be called on the UI thread.

Callback interface used for asynchronous continuation of Javascript dialog requests.

void Continue(bool allow, str userInput)

Continue the javascript dialog request. Set |allow| to true if the OK button was pressed. The |userInput| value should be specified for prompt dialogs.

bool OnJavascriptDialog(Browser browser, str origin_url, str accept_lang, int dialog_type, str message_text, str default_prompt_text, JavascriptDialogCallback callback, bool& suppress_message[0])

Called to run a Javascript dialog. The |default_prompt_text| value will be specified for prompt dialogs only. Set |suppress_message| to true 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 |suppress_message| to false and return false to use the default implementation (the default implementation will show one modal dialog at a time and suppress any additional dialog requests until the displayed dialog is dismissed). 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 |callback| once the custom dialog is dismissed.

The dialog_type param may be one of:

cefpython.JSDIALOGTYPE_ALERT
cefpython.JSDIALOGTYPE_CONFIRM
cefpython.JSDIALOGTYPE_PROMPT

bool OnBeforeUnloadJavascriptDialog(Browser browser, str message_text, bool is_reload, JavascriptDialogCallback callback)

Called to run a dialog asking the user if they want to leave a page. 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. Custom dialogs may be either modal or modeless. If a custom dialog is used the application must execute |callback| once the custom dialog is dismissed.

void OnResetJavascriptDialogState(Browser browser)

Called to cancel any pending dialogs and reset any saved dialog state. Will be called due to events like page navigation irregardless of whether any dialogs are currently pending.

void OnJavascriptDialogClosed(Browser browser)

Called when the default implementation dialog is closed.