cyf
104 lines
4.8 KiB
C#
104 lines
4.8 KiB
C#
namespace Cef3
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{
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Runtime.InteropServices;
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using Cef3.Interop;
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/// <summary>
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/// Implement this interface to handle events related to JavaScript dialogs. The
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/// methods of this class will be called on the UI thread.
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/// </summary>
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public abstract unsafe partial class CefJSDialogHandler
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{
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private int on_jsdialog(cef_jsdialog_handler_t* self, cef_browser_t* browser, cef_string_t* origin_url, cef_string_t* accept_lang, CefJSDialogType dialog_type, cef_string_t* message_text, cef_string_t* default_prompt_text, cef_jsdialog_callback_t* callback, int* suppress_message)
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{
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CheckSelf(self);
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var m_browser = CefBrowser.FromNative(browser);
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var m_origin_url = cef_string_t.ToString(origin_url);
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var m_accept_lang = cef_string_t.ToString(accept_lang);
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var m_message_text = cef_string_t.ToString(message_text);
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var m_default_prompt_text = cef_string_t.ToString(default_prompt_text);
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var m_callback = CefJSDialogCallback.FromNative(callback);
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bool m_suppress_message;
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var result = OnJSDialog(m_browser, m_origin_url, m_accept_lang, dialog_type, m_message_text, m_default_prompt_text, m_callback, out m_suppress_message);
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*suppress_message = m_suppress_message ? 1 : 0;
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return result ? 1 : 0;
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}
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/// <summary>
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/// Called to run a JavaScript dialog. The |default_prompt_text| value will be
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/// specified for prompt dialogs only. Set |suppress_message| to true and
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/// return false to suppress the message (suppressing messages is preferable
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/// to immediately executing the callback as this is used to detect presumably
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/// malicious behavior like spamming alert messages in onbeforeunload). Set
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/// |suppress_message| to false and return false to use the default
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/// implementation (the default implementation will show one modal dialog at a
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/// time and suppress any additional dialog requests until the displayed dialog
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/// is dismissed). Return true if the application will use a custom dialog or
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/// if the callback has been executed immediately. Custom dialogs may be either
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/// modal or modeless. If a custom dialog is used the application must execute
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/// |callback| once the custom dialog is dismissed.
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/// </summary>
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protected abstract bool OnJSDialog(CefBrowser browser, string originUrl, string acceptLang, CefJSDialogType dialogType, string message_text, string default_prompt_text, CefJSDialogCallback callback, out bool suppress_message);
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private int on_before_unload_dialog(cef_jsdialog_handler_t* self, cef_browser_t* browser, cef_string_t* message_text, int is_reload, cef_jsdialog_callback_t* callback)
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{
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CheckSelf(self);
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var m_browser = CefBrowser.FromNative(browser);
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var m_message_text = cef_string_t.ToString(message_text);
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var m_callback = CefJSDialogCallback.FromNative(callback);
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return OnBeforeUnloadDialog(m_browser, m_message_text, is_reload != 0, m_callback) ? 1 : 0;
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}
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/// <summary>
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/// Called to run a dialog asking the user if they want to leave a page. Return
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/// false to use the default dialog implementation. Return true if the
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/// application will use a custom dialog or if the callback has been executed
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/// immediately. Custom dialogs may be either modal or modeless. If a custom
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/// dialog is used the application must execute |callback| once the custom
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/// dialog is dismissed.
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/// </summary>
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protected abstract bool OnBeforeUnloadDialog(CefBrowser browser, string messageText, bool isReload, CefJSDialogCallback callback);
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private void on_reset_dialog_state(cef_jsdialog_handler_t* self, cef_browser_t* browser)
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{
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CheckSelf(self);
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var m_browser = CefBrowser.FromNative(browser);
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OnResetDialogState(m_browser);
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}
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/// <summary>
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/// Called to cancel any pending dialogs and reset any saved dialog state. Will
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/// be called due to events like page navigation irregardless of whether any
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/// dialogs are currently pending.
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/// </summary>
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protected abstract void OnResetDialogState(CefBrowser browser);
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private void on_dialog_closed(cef_jsdialog_handler_t* self, cef_browser_t* browser)
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{
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CheckSelf(self);
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var m_browser = CefBrowser.FromNative(browser);
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OnDialogClosed(m_browser);
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}
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/// <summary>
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/// Called when the default implementation dialog is closed.
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/// </summary>
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protected abstract void OnDialogClosed(CefBrowser browser);
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}
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}
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