/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU Lesser General Public License as published by

* the Free Software Foundation, version 2.1 of the License.

*

* 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 Lesser General Public License for more details.

*

* You should have received a copy of the GNU Lesser General Public License

* along with this program.  If not,

* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

*

* Description:

*

*/

#include "ViewController.h"

#include <QDebug>

namespace GVA {

  ViewController::ViewController()

    : m_viewMap() {

    m_current = m_viewMap.begin();

  }

  ViewController::~ViewController() {

    foreach(ControllableViewBase *view, m_viewMap) {

      delete view;

    }

  }

  void ViewController::addView(ControllableViewBase *controllableView) {

    assert(controllableView);

    QString key;

    // Set up parent/child link for javascript access to the view.

    if (controllableView->jsObject()) {

      // Use the view's javascript object.

      controllableView->jsObject()->setParent(this);

      key = controllableView->jsObject()->objectName();

    }

    else {

      // Use the view itself.

      controllableView->setParent(this);

      key = controllableView->objectName();

    }

    if (key.isNull()) {

      qWarning("ViewController::addView: missing objectName.");

    }

    m_viewMap.insert(key, controllableView);

    // Set the only view to current view

    if (m_viewMap.size() == 1)

        m_current = m_viewMap.begin();

  }

  QObjectList ViewController::getViews() {

    QObjectList *result = new QObjectList;

    foreach(ControllableViewBase *view, m_viewMap) {

      result->append(view);

    }

    return *result;

  }

  void ViewController::showCurrent() {

      ControllableViewBase *currentView = m_current.value();

      if (!currentView) return;

      if (!currentView->isActive()) {

          emit currentViewChanging();

          // Activate the current view.

          currentView->activate();

          currentView->show();

          // Deactivate all others.

          foreach(ControllableViewBase *view, m_viewMap) {

              if (view && view->isActive() && view != currentView) {

              }

          }

          emit currentViewChanged();

      }

  }

  void ViewController::showView(const QString &name) {

      ViewMap::iterator it = m_viewMap.find(name);

      if (it != m_viewMap.end()) {

          m_current = it;

          showCurrent();

      }

  }

  void ViewController::freezeView() {

      if (!m_viewMap.isEmpty() ) {

          m_current.value()->freeze();

      }

  }

  void ViewController::unfreezeView() {

      if (!m_viewMap.isEmpty() ) {

          m_current.value()->unfreeze();

      }

  }

  void ViewController::dump() {

    qDebug() << "ViewController::dump:"

        << " count=" << m_viewMap.count()

        << " current=" << m_current.value();

    foreach(ControllableViewBase *view, m_viewMap) {

      qDebug() << "  " << view;

    }

  }

  void ViewController::viewChanged() {

      emit currentViewChanged();

  }

  ControllableViewBase* ViewController::currentView() {

      if (!m_viewMap.isEmpty())

          return m_current.value();

      else

          return NULL;

  }

}