/*

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

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

#include "utilities.h"

#include <QtCore/QUrl>

#include "viewstack.h"

#include "viewcontroller.h"

#include "chromeview.h"

#include "chromewidget.h"

#include "chromesnippet.h"

#include "webpagecontroller.h"

#include "HistoryFlowView.h"

#include "WindowFlowView.h"

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());

    m_chromeView->setViewofCurrentPage();

    WRT::WindowFlowView* windowView = static_cast<WRT::WindowFlowView *>(m_viewController->getView("WindowView"));

    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::fromGoAnywhereView(const QString &to)

{

    WRT::HistoryFlowView* historyView = static_cast<WRT::HistoryFlowView*>(m_viewController->getView("historyView"));

    disconnect(historyView, SIGNAL(ok(int)), this, SLOT(loadHistoryItem(int)));

    m_viewController->showContent(to);

    disconnect(historyView, SIGNAL(activated()), this, SIGNAL(activateHistory()));

    disconnect(historyView, SIGNAL(deactivated()), this, SIGNAL(deActivateHistory()));

}

void ViewStack::fromWebView(const QString &to)

{

    m_viewController->showContent(to);

    emit (deActivateWebView());

}

void ViewStack::fromBookmarkTreeView(const QString &to)

{

    m_viewController->showContent(to);

    emit(deActivateBookmark());

}

void ViewStack::fromBookmarkHistoryView(const QString &to)

{

    m_viewController->showContent(to);

    emit(deActivateBookMarkHistory());

}

void ViewStack::toGoAnywhereView()

{

    emit (activateHistory()); // by default go to history view

    /* Connect ALL of goAnywhere's signals in one shot */

    WRT::HistoryFlowView* historyView = static_cast<WRT::HistoryFlowView*>(m_viewController->getView("historyView"));

    safe_connect(historyView, SIGNAL(ok(int)), this, SLOT(loadHistoryItem(int)))

    safe_connect(historyView, SIGNAL(activated()), this, SIGNAL(activateHistory()));

    safe_connect(historyView, SIGNAL(deactivated()), this, SIGNAL(deActivateHistory()));

}

void  ViewStack::initWindowView()

{

    int width = m_chromeView->size().width();

    int height = m_chromeView->size().height();

    // FIXME: the snippet id is hardcode

    ChromeSnippet* visibleSnippet = m_chromeView->getChromeWidget()->getSnippet("StatusBarChromeId");

    if (visibleSnippet)

        height -= (int) (visibleSnippet->rect().height()); 

    visibleSnippet = m_chromeView->getChromeWidget()->getSnippet("WebViewToolbarId");

    if (visibleSnippet)

        height -= (int) (visibleSnippet->rect().height()); 

    if (m_chromeView->displayMode() ==  ChromeView::DisplayModePortrait) {

        visibleSnippet = m_chromeView->getChromeWidget()->getSnippet("WindowCountBarId");

        if (visibleSnippet)

            height -= (int) (visibleSnippet->rect().height()); 

    }

    QSize windowViewSize(width, height);

    WRT::WindowFlowView* windowView = static_cast<WRT::WindowFlowView *>(m_viewController->getView("WindowView"));

    windowView->setSize(windowViewSize);

}

void ViewStack::toWindowView()

{

    emit(activateWindowView());

    WRT::WindowFlowView* windowView = static_cast<WRT::WindowFlowView *>(m_viewController->getView("WindowView"));

    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::toWebView()

{

    emit (activateWebView());

}

void ViewStack::toBookmarkHistoryView()

{

    emit(activateBookMarkHistory());

}

void ViewStack::toBookmarkView()

{

    emit(activateBookmark());

}

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

    if (to == from) {

        return;

    }

    if (!m_viewController) {

        return;

    }

    if (from == "WindowView") {

        fromWindowView(to);

    }

    else if (from == "goAnywhereView") {

        fromGoAnywhereView(to);

    }

    else if (from == "webView") {

       if (to == "WindowView")

           initWindowView(); // to fix the size issue of windows view

       fromWebView(to);

    }

    else if (from == "bookmarkHistoryView") {

        fromBookmarkHistoryView(to);

    }

    else if (from == "bookmarkTreeView") {

        fromBookmarkTreeView(to);

    }

    if (to == "WindowView") {

        toWindowView();

    }

    else if (to == "goAnywhereView") {

        toGoAnywhereView();

    }

    else if (to == "webView") {

        toWebView();

    }

    else if (to == "bookmarkHistoryView") {

        toBookmarkHistoryView();

    }

    else if (to == "bookmarkTreeView") {

        toBookmarkView();

    }

}

void ViewStack::loadHistoryItem(int item) {

    if (!m_viewController) {

        return;

    }

    WRT::HistoryFlowView* historyView = static_cast<WRT::HistoryFlowView*>(m_viewController->getView("historyView"));

    //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)));

    }

    else {

        //window.chrome.alert("Just go back");

        goBackFromGoAnywhereView();

    }

}

void ViewStack::goBackFromGoAnywhereView() {

    switchView("webView", "goAnywhereView");

}

void ViewStack::goBackFromWindowView() {

    switchView("webView", "WindowView");

}

void ViewStack::goBackFromRecentUrlView() {

    switchView("webView", "bookmarkHistoryView");

}

void ViewStack::goBackFromBookmarkView() {

    switchView("webView", "bookmarkTreeView");

}

void ViewStack::showContentView(int progress) {

    if (!m_viewController) {

        return;

    }

    if (progress >= 30 && m_viewController->currentView()->type() == "goAnywhereView") {

        //goBackToWebView();

        goBackFromGoAnywhereView();

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

    }

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

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

    }

}