/**************************************************************************
* Otter Browser: Web browser controlled by the user, not vice-versa.
* Copyright (C) 2013 - 2017 Michal Dutkiewicz aka Emdek <michal@emdek.pl>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
**************************************************************************/

#include "MenuButtonWidget.h"
#include "../../../core/SessionsManager.h"
#include "../../../core/ThemesManager.h"
#include "../../../ui/MainWindow.h"
#include "../../../ui/Menu.h"
#include "../../../ui/ToolBarWidget.h"

namespace Otter
{

MenuButtonWidget::MenuButtonWidget(const ToolBarsManager::ToolBarDefinition::Entry &definition, QWidget *parent) : ToolButtonWidget(definition, parent),
	m_menu(new Menu(Menu::NoMenuRole, this)),
	m_isHidden(false)
{
	setIcon(ThemesManager::createIcon(QLatin1String("otter-browser"), false));
	setText(definition.options.value(QLatin1String("text"), tr("Menu")).toString());
	setMenu(m_menu);
	setPopupMode(QToolButton::InstantPopup);
	setButtonStyle(Qt::ToolButtonTextBesideIcon);
	handleActionsStateChanged({ActionsManager::ShowToolBarAction});

	const MainWindow *mainWindow(MainWindow::findMainWindow(this));
	const ToolBarWidget *toolBar(qobject_cast<ToolBarWidget*>(parent));

	if (mainWindow)
	{
		connect(mainWindow, &MainWindow::arbitraryActionsStateChanged, this, &MenuButtonWidget::handleActionsStateChanged);
	}

	if (toolBar)
	{
		disconnect(toolBar, &ToolBarWidget::buttonStyleChanged, this, &MenuButtonWidget::setButtonStyle);
	}

	connect(m_menu, &Menu::aboutToShow, this, &MenuButtonWidget::updateMenu);
}

void MenuButtonWidget::handleActionsStateChanged(const QVector<int> &identifiers)
{
	if (identifiers.contains(ActionsManager::ShowToolBarAction))
	{
		const MainWindow *mainWindow(MainWindow::findMainWindow(this));

		m_isHidden = (mainWindow && mainWindow->getActionState(ActionsManager::ShowToolBarAction, {{QLatin1String("toolBar"), ToolBarsManager::MenuBar}}).isChecked);

		updateGeometry();
	}
}

void MenuButtonWidget::updateMenu()
{
	disconnect(m_menu, &Menu::aboutToShow, this, &MenuButtonWidget::updateMenu);

	m_menu->load(QLatin1String("menu/menuButton.json"));

	connect(m_menu, &Menu::aboutToShow, this, &MenuButtonWidget::updateMenu);
}

QSize MenuButtonWidget::minimumSizeHint() const
{
	if (m_isHidden)
	{
		return QSize(0, 0);
	}

	return ToolButtonWidget::minimumSizeHint();
}

QSize MenuButtonWidget::sizeHint() const
{
	if (m_isHidden)
	{
		return QSize(0, 0);
	}

	return ToolButtonWidget::sizeHint();
}

}
