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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_APP_MODAL_DIALOG_H_
#define CHROME_BROWSER_APP_MODAL_DIALOG_H_
#include <string>
#include "build/build_config.h"
#include "chrome/common/notification_observer.h"
#include "chrome/common/notification_registrar.h"
#if defined(OS_WIN)
class JavascriptMessageBoxDialog;
typedef JavascriptMessageBoxDialog* NativeDialog;
#elif defined(OS_MACOSX)
#if __OBJC__
@class NSAlert;
#else
class NSAlert;
#endif
typedef NSAlert* NativeDialog;
#elif defined(OS_POSIX)
typedef struct _GtkWidget GtkWidget;
typedef GtkWidget* NativeDialog;
#endif
class ExtensionHost;
class JavaScriptMessageBoxClient;
class TabContents;
namespace IPC {
class Message;
}
// A controller+model class for javascript alert, confirm, prompt, and
// onbeforeunload dialog boxes. |NativeDialog| is a platform specific
// view.
class AppModalDialog : public NotificationObserver {
public:
// A union of data necessary to determine the type of message box to
// show. |dialog_flags| is a MessageBox flag.
AppModalDialog(JavaScriptMessageBoxClient* client,
const std::wstring& title,
int dialog_flags,
const std::wstring& message_text,
const std::wstring& default_prompt_text,
bool display_suppress_checkbox,
bool is_before_unload_dialog,
IPC::Message* reply_msg);
~AppModalDialog();
// Called by the app modal window queue when it is time to show this window.
void ShowModalDialog();
/////////////////////////////////////////////////////////////////////////////
// The following methods are platform specific and should be implemented in
// the platform specific .cc files.
// Create the platform specific NativeDialog and display it. When the
// NativeDialog is closed, it should call OnAccept or OnCancel to notify the
// renderer of the user's action. The NativeDialog is also expected to
// delete the AppModalDialog associated with it.
void CreateAndShowDialog();
// Close the dialog if it is showing.
void CloseModalDialog();
// Called by the app modal window queue to activate the window.
void ActivateModalDialog();
/////////////////////////////////////////////////////////////////////////////
// Getters so NativeDialog can get information about the message box.
JavaScriptMessageBoxClient* client() {
return client_;
}
int dialog_flags() {
return dialog_flags_;
}
std::wstring title() {
return title_;
}
bool is_before_unload_dialog() {
return is_before_unload_dialog_;
}
// Callbacks from NativeDialog when the user accepts or cancels the dialog.
void OnCancel();
void OnAccept(const std::wstring& prompt_text, bool suppress_js_messages);
void OnClose();
// Helper methods used to query or control the dialog. This is used by
// automation.
int GetDialogButtons();
void AcceptWindow();
void CancelWindow();
private:
void InitNotifications();
// NotificationObserver implementation.
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details);
// Cleans up after the dialog closes for any reason: sends close
// notification and re-enables input events.
void Cleanup();
NotificationRegistrar registrar_;
// A reference to the platform native dialog box.
NativeDialog dialog_;
// An implementation of the client interface to provide supporting methods
// and receive results.
JavaScriptMessageBoxClient* client_;
// The client_ as an ExtensionHost, cached for use during notifications that
// may arrive after the client has entered its destructor (and is thus
// treated as a base JavaScriptMessageBoxClient). This will be NULL if the
// client is not an ExtensionHost.
TabContents* tab_contents_;
ExtensionHost* extension_host_;
// True if the dialog should no longer be shown, e.g. because the underlying
// tab navigated away while the dialog was queued.
bool skip_this_dialog_;
// Information about the message box is held in the following variables.
std::wstring title_;
int dialog_flags_;
std::wstring message_text_;
std::wstring default_prompt_text_;
bool display_suppress_checkbox_;
bool is_before_unload_dialog_;
IPC::Message* reply_msg_;
};
#endif // CHROME_BROWSER_APP_MODAL_DIALOG_H_
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