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 /* ============================================================
 * Falkon - Qt web browser
 * Copyright (C) 2018 David Rosca <nowrep@gmail.com>
 *
 * 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 "navigationbartoolbutton.h"
 #include "abstractbuttoninterface.h"
 
 #include <QLabel>
 #include <QMouseEvent>
 #include <QApplication>
 
 NavigationBarToolButton::NavigationBarToolButton(AbstractButtonInterface *button, QWidget *parent)
     : ToolButton(parent)
     , m_button(button)
 {
     setAutoRaise(true);
     setToolbarButtonLook(true);
     setFocusPolicy(Qt::NoFocus);
 
     m_badgeLabel = new QLabel(this);
     m_badgeLabel->setObjectName(QSL("navigation-toolbutton-badge"));
     QFont f = m_badgeLabel->font();
     f.setPixelSize(m_badgeLabel->height() / 2.5);
     m_badgeLabel->setFont(f);
     m_badgeLabel->hide();
 
     setToolTip(button->toolTip());
     updateIcon();
     updateBadge();
 
     connect(button, &AbstractButtonInterface::iconChanged, this, &NavigationBarToolButton::updateIcon);
     connect(button, &AbstractButtonInterface::activeChanged, this, &NavigationBarToolButton::updateIcon);
     connect(button, &AbstractButtonInterface::toolTipChanged, this, &NavigationBarToolButton::setToolTip);
     connect(button, &AbstractButtonInterface::badgeTextChanged, this, &NavigationBarToolButton::updateBadge);
     connect(button, &AbstractButtonInterface::visibleChanged, this, &NavigationBarToolButton::visibilityChangeRequested);
 }
 
 void NavigationBarToolButton::updateVisibility()
 {
     setVisible(m_button->isVisible());
 }
 
 void NavigationBarToolButton::clicked()
 {
     auto *c = new AbstractButtonInterface::ClickController;
     c->visualParent = this;
     c->popupPosition = [=](const QSize &size) {
         QPoint pos = mapToGlobal(rect().bottomRight());
         if (QApplication::isRightToLeft()) {
             pos.setX(pos.x() - rect().width());
         } else {
             pos.setX(pos.x() - size.width());
         }
         c->popupOpened = true;
         return pos;
     };
     c->popupClosed = [=]() {
         setDown(false);
         delete c;
     };
     Q_EMIT m_button->clicked(c);
     if (c->popupOpened) {
         setDown(true);
     } else {
         c->popupClosed();
     }
 }
 
 void NavigationBarToolButton::updateIcon()
 {
     const QIcon::Mode mode = m_button->isActive() ? QIcon::Normal : QIcon::Disabled;
     const QImage img = m_button->icon().pixmap(iconSize(), mode).toImage();
     setIcon(QPixmap::fromImage(img, Qt::MonoOnly));
 }
 
 void NavigationBarToolButton::updateBadge()
 {
     if (m_button->badgeText().isEmpty()) {
         m_badgeLabel->hide();
     } else {
         m_badgeLabel->setText(m_button->badgeText());
         m_badgeLabel->resize(m_badgeLabel->sizeHint());
         m_badgeLabel->move(width() - m_badgeLabel->width(), 0);
         m_badgeLabel->show();
     }
 }
 
 void NavigationBarToolButton::mouseReleaseEvent(QMouseEvent *e)
 {
     // Prevent flickering due to mouse release event restoring Down state
 
     bool popupOpened = false;
 
     if (e->button() == Qt::LeftButton && rect().contains(e->pos())) {
         clicked();
         popupOpened = isDown();
     }
 
     if (popupOpened) {
         setUpdatesEnabled(false);
     }
 
     ToolButton::mouseReleaseEvent(e);
 
     if (popupOpened) {
         setDown(true);
         setUpdatesEnabled(true);
     }
 }