/branches/bugfix-2-3/bibletime/src/frontend/htmldialogs/bttabhtmldialog.cpp

/*********
*
* This file is part of BibleTime's source code, http://www.bibletime.info/.
*
* Copyright 1999-2009 by the BibleTime developers.
* The BibleTime source code is licensed under the GNU General Public License version 2.0.
*
**********/

#include "bttabhtmldialog.h"  // See this file for more documentation of BtTabHtmlDialog
#include "util/dialogutil.h"
#include "util/directoryutil.h"

#include <QDialog>
#include <QDialogButtonBox>
#include <QVBoxLayout>
#include <QWebView>
#include <QMenu>
#include <QTabWidget>
#include <QDesktopServices>
#include <QContextMenuEvent>

BtTabHtmlDialog::BtTabHtmlDialog
(const QString& title, int tabs, QWidget *parent, Qt::WindowFlags wflags )
        : QDialog(parent, wflags), m_webView(0), m_tabWidget(0), m_tabs(tabs) {
    //Set the flag to destroy when closed
    setAttribute(Qt::WA_DeleteOnClose);
    setWindowTitle(title);
    resize(400, 300);

    QVBoxLayout *vboxLayout = new QVBoxLayout(this);
    if (tabs == 0) {
        m_webView = new BtWebView(this);
        init_connections(m_webView);
        vboxLayout->addWidget(m_webView);
        m_webView->setHtml("Hi");
    }
    else {
        m_tabWidget = new QTabWidget(this);
        vboxLayout->addWidget(m_tabWidget);
        for (int i = 0; i < tabs; i++) {
            QWebView* webView = new BtWebView(this);
            init_connections(webView);
            webView->setObjectName("View" + QString::number(i));
            webView->setHtml(" ");
            m_tabWidget->addTab(webView, "Tab" + QString::number(i));
            m_tabWidget->show();
        }
    }

    QDialogButtonBox* buttonBox = new QDialogButtonBox(QDialogButtonBox::Close, Qt::Horizontal, this);
    util::prepareDialogBox(buttonBox);
    vboxLayout->addWidget(buttonBox);

    bool ok;
    ok = connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
    Q_ASSERT(ok);
    ok = connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
    Q_ASSERT(ok);
}

BtTabHtmlDialog::~BtTabHtmlDialog() {
}

void BtTabHtmlDialog::init_connections(QWebView* webView) {
    webView->page()->setLinkDelegationPolicy(QWebPage::DelegateAllLinks);
    bool ok = connect(webView, SIGNAL(linkClicked(QUrl)), this, SLOT(linkClicked(QUrl)));
    Q_ASSERT(ok);
}

void BtTabHtmlDialog::linkClicked(const QUrl url) {
    QDesktopServices::openUrl(url);
}

void BtTabHtmlDialog::selectTab(int tab) {
    Q_ASSERT(tab >= 0 && tab < m_tabWidget->count());
    m_tabWidget->setCurrentIndex(tab);
}

QWebView* BtTabHtmlDialog::webView() {
    QWebView* webview = 0;
    if (m_tabs == 0)
        webview = m_webView;
    else {
        QWidget* widget = m_tabWidget->currentWidget();
        QString name = widget->objectName();
        webview = qobject_cast<QWebView*>(widget);
    }
    Q_ASSERT(webview != 0);
    return webview;
}

void BtTabHtmlDialog::setHtml(const QString& html, const QUrl& baseUrl) {
    QUrl url = baseUrl;
    if (url == QUrl()) {
        QString dir = "file://" + util::filesystem::DirectoryUtil::getIconDir().path();
        url.setUrl(dir);
    }
    webView()->setHtml(html, url);
}

void BtTabHtmlDialog::setUrl(const QUrl& url) {
    webView()->setUrl(url);
}

void BtTabHtmlDialog::setTabText(const QString& tabName) {
    Q_ASSERT(m_tabs != 0); // There are no tabs to name
    int index = m_tabWidget->currentIndex();
    m_tabWidget->setTabText(index, tabName);
}

// ******************* BtWebView *******************

BtWebView::BtWebView(QWidget* parent)
        : QWebView(parent), m_popup(0) {
    m_popup = new QMenu(this);
    QAction* copyAction = pageAction(QWebPage::Copy);
    m_popup->addAction(copyAction);
}

void BtWebView::contextMenuEvent(QContextMenuEvent* event) {
    m_popup->exec(event->globalPos());
}