/* ============================================================
*
* This file is a part of the rekonq project
*
* Copyright (C) 2008 by Andrea Diamantini <adjam7 at gmail dot com>
* Copyright (C) 2009 by Paweł Prażak <pawelprazak at gmail dot 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 2, 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.
*
* ============================================================ */




#ifndef TABWIDGET_H
#define TABWIDGET_H

// Local Includes
#include "webview.h"
#include "application.h"

// KDE Includes
#include <KTabWidget>

// Forward Declarations
class QLineEdit;
class QUrl;
class QWebFrame;
class QLabel;

class KAction;
class KCompletion;
class KMenu;
class KUrl;

class HistoryCompletionModel;
class StackedUrlBar;
class TabBar;
class UrlBar;


/**
 *  This class represent rekonq Main View. It contains all WebViews and a stack widget
 *  of associated line edits.
 *
 */

class MainView : public KTabWidget
{
    Q_OBJECT

public:
    MainView(QWidget *parent = 0);
    ~MainView();

public:

    UrlBar *urlBar(int index) const;
    UrlBar *currentUrlBar() const { return urlBar(-1); }
    WebView *webView(int index) const;
    QList<WebView *> tabs();    // ?

    // inlines
    TabBar *tabBar() const { return m_tabBar; }
    StackedUrlBar *urlBarStack() const { return m_urlBars; }
    WebView *currentWebView() const { return webView(currentIndex()); }
    int webViewIndex(WebView *webView) const { return indexOf(webView); }
    KAction *recentlyClosedTabsAction() const { return m_recentlyClosedTabsAction; }
    void setMakeBackTab(bool b) { m_makeBackTab = b; }

    /**
     * show and hide TabBar if user doesn't choose
     * "Always Show TabBar" option
     *
     */
    void showTabBar();
    void clear();


signals:
    // tab widget signals
    void tabsChanged();
    void lastTabClosed();

    // current tab signals
    void setCurrentTitle(const QString &url);
    void showStatusBarMessage(const QString &message);
    void linkHovered(const QString &link);
    void loadProgress(int progress);

    void geometryChangeRequested(const QRect &geometry);
    void menuBarVisibilityChangeRequested(bool visible);
    void statusBarVisibilityChangeRequested(bool visible);
    void toolBarVisibilityChangeRequested(bool visible);
    void printRequested(QWebFrame *frame);

public slots:
    /**
     * Core browser slot. This create a new tab with a WebView inside
     * for browsing.
     *
     * @return a pointer to the new WebView
     */
    WebView *newWebView(Rekonq::OpenType type = Rekonq::Default);

    /**
     * Core browser slot. Load an url in a webview
     *
     * @param url The url to load
     */
    void loadUrl(const KUrl &url);
    void slotCloneTab(int index = -1);
    void slotCloseTab(int index = -1);
    void slotCloseOtherTabs(int index);
    void slotReloadTab(int index = -1);
    void slotReloadAllTabs();
    void nextTab();
    void previousTab();

    // WEB slot actions
    void slotWebReload();
    void slotWebStop();
    void slotWebBack();
    void slotWebForward();
    void slotWebUndo();
    void slotWebRedo();
    void slotWebCut();
    void slotWebCopy();
    void slotWebPaste();

private slots:
    void slotCurrentChanged(int index);
    void aboutToShowRecentTabsMenu();
    void aboutToShowRecentTriggeredAction(QAction *action); // need QAction!

    void webViewLoadStarted();
    void webViewLoadProgress(int progress);
    void webViewLoadFinished(bool ok);
    void webViewIconChanged();
    void webViewTitleChanged(const QString &title);
    void webViewUrlChanged(const QUrl &url);

    void windowCloseRequested();

    /**
     * This functions move tab informations "from index to index"
     *
     * @param fromIndex the index from which we move
     *
     * @param toIndex the index to which we move
     */
    void moveTab(int fromIndex, int toIndex);

    void postLaunch();

protected:

    virtual void mouseDoubleClickEvent(QMouseEvent *event);


private:

    /**
     * This function creates (if not exists) and returns a QLabel
     * with a loading QMovie.
     * Imported from Arora's code.
     *
     * @param index the tab index where inserting the animated label
     * @param addMovie creates or not a loading movie
     *
     * @return animated label's pointer
     */
    QLabel *animatedLoading(int index, bool addMovie);

    static const int m_recentlyClosedTabsSize = 10;
    KAction *m_recentlyClosedTabsAction;

    KMenu *m_recentlyClosedTabsMenu;
    QList<KUrl> m_recentlyClosedTabs;

    StackedUrlBar *m_urlBars;
    TabBar *m_tabBar;

    QString m_loadingGitPath;

    bool m_makeBackTab;
};

#endif