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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_VIEWS_CONFIRM_MESSAGE_BOX_DIALOG_H_
#define CHROME_BROWSER_VIEWS_CONFIRM_MESSAGE_BOX_DIALOG_H_
#include <string>
#include "base/basictypes.h"
#include "gfx/native_widget_types.h"
#include "views/controls/label.h"
#include "views/window/dialog_delegate.h"
// An interface the confirm dialog uses to notify its clients (observers) when
// the user makes a decision to confirm or cancel. Only one method will be
// invoked per use (i.e per invocation of ConfirmMessageBoxDialog::Run).
class ConfirmMessageBoxObserver {
public:
// The user explicitly confirmed by clicking "OK".
virtual void OnConfirmMessageAccept() = 0;
// The user chose not to confirm either by clicking "Cancel" or by closing
// the dialog.
virtual void OnConfirmMessageCancel() {}
};
class ConfirmMessageBoxDialog : public views::DialogDelegate,
public views::View {
public:
// The method presents a modal confirmation dialog to the user with the title
// |window_title| and message |message_text|, and 'Yes' 'No' buttons.
// |observer| will be notified when the user makes a decision or closes the
// dialog. Note that this class guarantees it will call one of the observer's
// methods, so it is the caller's responsibility to ensure |observer| lives
// until one of the methods is invoked; it can be deleted thereafter from this
// class' point of view. |parent| specifies where to insert the view into the
// hierarchy and effectively assumes ownership of the dialog.
static void Run(gfx::NativeWindow parent,
ConfirmMessageBoxObserver* observer,
const std::wstring& message_text,
const std::wstring& window_title);
// A variant of the above for when the message text is longer/shorter than
// what the default size of this dialog can accommodate.
static void RunWithCustomConfiguration(gfx::NativeWindow parent,
ConfirmMessageBoxObserver* observer,
const std::wstring& message_text,
const std::wstring& window_title,
const std::wstring& confirm_label,
const std::wstring& reject_label,
const gfx::Size& preferred_size);
virtual ~ConfirmMessageBoxDialog() {}
// views::DialogDelegate implementation.
virtual int GetDialogButtons() const;
virtual std::wstring GetWindowTitle() const;
virtual std::wstring GetDialogButtonLabel(
MessageBoxFlags::DialogButton button) const;
virtual int GetDefaultDialogButton() const {
return MessageBoxFlags::DIALOGBUTTON_CANCEL;
}
virtual bool Accept();
virtual bool Cancel();
// views::WindowDelegate implementation.
virtual bool IsModal() const { return true; }
virtual views::View* GetContentsView() { return this; }
// views::View implementation.
virtual void Layout();
virtual gfx::Size GetPreferredSize();
private:
ConfirmMessageBoxDialog(ConfirmMessageBoxObserver* observer,
const std::wstring& message_text,
const std::wstring& window_title);
// The message which will be shown to user.
views::Label* message_label_;
// This is the Title bar text.
std::wstring window_title_;
// The text for the 'OK' and 'CANCEL' buttons.
std::wstring confirm_label_;
std::wstring reject_label_;
// The preferred size of the dialog.
gfx::Size preferred_size_;
// The observer to notify of acceptance or cancellation.
ConfirmMessageBoxObserver* observer_;
DISALLOW_COPY_AND_ASSIGN(ConfirmMessageBoxDialog);
};
#endif // CHROME_BROWSER_VIEWS_CONFIRM_MESSAGE_BOX_DIALOG_H_
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