/*

* 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 "Utilities.h"

#include <QtCore/QUrl>

#include "ViewStack.h"

#include "ViewController.h"

#include "webpagecontroller.h"

#include "HistoryFlowView.h"

#include "WindowFlowView.h"

#include "ChromeSnippet.h"

namespace GVA {

static const QString KBookmarkHistoryViewName = "BookmarkHistoryView";

static const QString KBookmarkTreeViewName = "BookmarkTreeView";

static const QString KWebViewName = "WebView";

static const QString KWindowViewName = "WindowView";

static const QString KHistoryViewName = "HistoryView";

static const QString KSettingsViewName = "SettingsView";

ViewStack* ViewStack::getSingleton()

{

    static ViewStack* singleton = 0;

    if (!singleton)

    {

        singleton = new ViewStack;

        singleton->setObjectName("ViewStack");

    } // if (! singleton)

    assert(singleton);

    return singleton;

}

void ViewStack::fromWindowView(const QString &to)

{

    emit (deActivateWindowView());

    ChromeSnippet* tbSnippet = m_chrome->getSnippet("WindowViewToolbarId");

    if (tbSnippet)

        tbSnippet->hide();

    //m_chromeView->setViewofCurrentPage();

    WRT::WindowFlowView* windowView = static_cast<WRT::WindowFlowView *>(m_viewController->view(KWindowViewName));

    disconnect(windowView, SIGNAL(ok(WrtBrowserContainer*)), this, SLOT(goBackFromWindowView()));

    disconnect(windowView, SIGNAL(addPageComplete()), this, SLOT(goBackFromWindowView()));

    disconnect(windowView, SIGNAL(centerIndexChanged(int)), this, SIGNAL(pageChanged(int)));

    m_viewController->showContent(to);

}

void ViewStack::fromSettingsView(const QString &to)  // goto WebView

{

    m_viewController->showContent(to);

    ChromeSnippet* tbSnippet = m_chrome->getSnippet("SettingsViewToolbarId");

    if (tbSnippet)

        tbSnippet->hide();

    WebPageController::getSingleton()->setSettingsLoaded(0);

}

void ViewStack::fromWebView(const QString &to)

{

    m_viewController->showContent(to);

    ChromeSnippet* tbSnippet = m_chrome->getSnippet("WebViewToolbarId");

    if (tbSnippet)

        tbSnippet->hide(false);

}

void ViewStack::fromBookmarkTreeView(const QString &to)

{

     m_viewController->showContent(to);

    // Hide toolbar and dialog if visible

    ChromeSnippet* visibleSnippet = m_chrome->getSnippet("BookmarkViewToolbarId");

    if (visibleSnippet)

        visibleSnippet->hide();

    visibleSnippet = m_chrome->getSnippet("BookmarkDialogId");

    if (visibleSnippet)

        visibleSnippet->hide();

}

void ViewStack::fromBookmarkHistoryView(const QString &to)

{

    m_viewController->showContent(to);

    ChromeSnippet* tbSnippet = m_chrome->getSnippet("RecentUrlViewToolbarId");

    if (tbSnippet)

        tbSnippet->hide();

    ChromeSnippet* visibleSnippet  = m_chrome->getSnippet("ClearHistoryDialogId");

    if (visibleSnippet)

         visibleSnippet->hide();

}

void ViewStack::toWindowView()

{

    emit(activateWindowView());

    ChromeSnippet* tbSnippet = m_chrome->getSnippet("WindowViewToolbarId");

    if (tbSnippet)

        tbSnippet->show();

    WRT::WindowFlowView* windowView = static_cast<WRT::WindowFlowView *>(m_viewController->view(KWindowViewName));

    safe_connect(windowView, SIGNAL(ok(WrtBrowserContainer*)), this, SLOT(goBackFromWindowView()));

    safe_connect(windowView, SIGNAL(addPageComplete()), this, SLOT(goBackFromWindowView()));

    safe_connect(windowView, SIGNAL(centerIndexChanged(int)), this, SIGNAL(pageChanged(int)));

}

void ViewStack::toSettingsView()

{

    ChromeSnippet* tbSnippet = m_chrome->getSnippet("SettingsViewToolbarId");

    if (tbSnippet)

        tbSnippet->show();

    WebPageController::getSingleton()->setSettingsLoaded(0);

}

void ViewStack::toWebView()

{

    ChromeSnippet* tbSnippet = m_chrome->getSnippet("WebViewToolbarId");

    if (tbSnippet)

        tbSnippet->show(false);

}

void ViewStack::toBookmarkHistoryView()

{

    ChromeSnippet* tbSnippet = m_chrome->getSnippet("RecentUrlViewToolbarId");

    if (tbSnippet)

        tbSnippet->show();

}

void ViewStack::toBookmarkView()

{

    ChromeSnippet* tbSnippet = m_chrome->getSnippet("BookmarkViewToolbarId");

    if (tbSnippet)

        tbSnippet->show();

    emit activateBookmark();

}

void ViewStack::creatingPage(WRT::WrtBrowserContainer* page) {

    Q_UNUSED(page);

    //qDebug() << "VIEW STACK:: Received creating Page" << page;

    if (m_viewController->currentView()->type() == "webView" ) {

        //qDebug() << "ViewStack::page: " << page << "Created In " << m_viewController->currentView()->type() ;

        WRT::WindowFlowView* windowView = static_cast<WRT::WindowFlowView *>(m_viewController->view(KWindowViewName));

        windowView->setMode(WRT::WindowView::WindowViewModeTransition);

        windowView->onPageCreated(page);

        ViewStack::getSingleton()->switchView(KWindowViewName, KWebViewName);

    }

}

void ViewStack::switchView(const QString &to, const QString &from) {

    if (to == from) {

        return;

    }

    if (!m_viewController) {

        return;

    }

    if (from == KWindowViewName) {

        fromWindowView(to);

    }

    else if (from == KWebViewName) {

        fromWebView(to);

    }

    else if (from == KBookmarkHistoryViewName) {

        fromBookmarkHistoryView(to);

    }

    else if (from == KBookmarkTreeViewName) {

        fromBookmarkTreeView(to);

    }

    else if (from == KSettingsViewName) {

        fromSettingsView(to);

    }

    if (to == KWindowViewName) {

        toWindowView();

    }

    else if (to == KWebViewName) {

        toWebView();

    }

    else if (to == KBookmarkHistoryViewName) {

        toBookmarkHistoryView();

    }

    else if (to == KBookmarkTreeViewName) {

        toBookmarkView();

    }

    else if (to == KSettingsViewName) {

        toSettingsView();

    }

}

void ViewStack::loadHistoryItem(int item) {

    if (!m_viewController) {

        return;

    }

    WRT::HistoryFlowView* historyView = static_cast<WRT::HistoryFlowView*>(m_viewController->view(KHistoryViewName));

    //var myIndex = window.viewManager.historyView.currentHistIndex;

    int myIndex = historyView->currentIndex();

    if (myIndex != item ) {

        //window.chrome.alert("loadFromHistory");

        WebPageController::getSingleton()->currentSetFromHistory(item);

        safe_connect(m_viewController,SIGNAL(loadProgess(const int)), this, SLOT(showContentView(const int)));

    }

}

void ViewStack::goBackFromWindowView() {

    switchView(KWebViewName, KWindowViewName);

}

void ViewStack::goBackFromRecentUrlView() {

    switchView(KWebViewName, KBookmarkHistoryViewName);

}

void ViewStack::goBackFromBookmarkView() {

    switchView(KWebViewName, KBookmarkTreeViewName);

}

void ViewStack::goBackFromSettingsView() {

    switchView(KWebViewName, KSettingsViewName);

}

void ViewStack::showContentView(int progress) {

    Q_UNUSED(progress);

    if (!m_viewController) {

        return;

    }

    if ( m_viewController->currentView()->type() == KWebViewName ) {

        disconnect(m_viewController,SIGNAL(loadProgess(const int)), this, SLOT(showContentView(const int)));

    }

}

}  // end of namespace