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module toolbarsearch;

import searchlineedit;

import autosaver;

import QtCore.QSettings;
import QtCore.QUrl;

import QtGui.QCompleter;
import QtGui.QMenu;
import QtGui.QStringListModel;

import QtWebKit/QWebSettings;

/*
QT_BEGIN_NAMESPACE
class QUrl;
class QAction;
class QStringListModel;
QT_END_NAMESPACE

class AutoSaver;
*/

class ToolbarSearch : public SearchLineEdit
{
    Q_OBJECT

signals:
    void search(const QUrl &url);

public:
	
/*
    ToolbarSearch is a very basic search widget that also contains a small history.
    Searches are turned into urls that use Google to perform search
 */
this(QWidget *parent = null)
 
{
	super(parent)
     m_autosaver = new AutoSaver(this);
     m_maxSavedSearches = 10;
     m_stringListModel = new QStringListModel(this);
	
    QMenu *m = menu();
    connect(m, SIGNAL(aboutToShow()), this, SLOT(aboutToShowMenu()));
    connect(m, SIGNAL(triggered(QAction*)), this, SLOT(triggeredMenuAction(QAction*)));

    QCompleter *completer = new QCompleter(m_stringListModel, this);
    completer.setCompletionMode(QCompleter::InlineCompletion);
    lineEdit().setCompleter(completer);

    connect(lineEdit(), SIGNAL(returnPressed()), SLOT(searchNow()));
    setInactiveText(tr("Google"));
    load();
}
    ~this()
{
    m_autosaver.saveIfNeccessary();
}

public slots:
    void clear()
{
    m_stringListModel.setStringList(QStringList());
    m_autosaver.changeOccurred();;
}

    void searchNow()
{
    QString searchText = lineEdit().text();
    QStringList newList = m_stringListModel.stringList();
    if (newList.contains(searchText))
        newList.removeAt(newList.indexOf(searchText));
    newList.prepend(searchText);
    if (newList.size() >= m_maxSavedSearches)
        newList.removeLast();

    QWebSettings *globalSettings = QWebSettings::globalSettings();
    if (!globalSettings.testAttribute(QWebSettings::PrivateBrowsingEnabled)) {
        m_stringListModel.setStringList(newList);
        m_autosaver.changeOccurred();
    }

    QUrl url(QLatin1String("http://www.google.com/search"));
    url.addQueryItem(QLatin1String("q"), searchText);
    url.addQueryItem(QLatin1String("ie"), QLatin1String("UTF-8"));
    url.addQueryItem(QLatin1String("oe"), QLatin1String("UTF-8"));
    url.addQueryItem(QLatin1String("client"), QLatin1String("qtdemobrowser"));
    emit search(url);
}

private slots:
    void save()
{
    QSettings settings;
    settings.beginGroup(QLatin1String("toolbarsearch"));
    settings.setValue(QLatin1String("recentSearches"), m_stringListModel.stringList());
    settings.setValue(QLatin1String("maximumSaved"), m_maxSavedSearches);
    settings.endGroup();
}


    void aboutToShowMenu()
{
    lineEdit().selectAll();
    QMenu *m = menu();
    m.clear();
    QStringList list = m_stringListModel.stringList();
    if (list.isEmpty()) {
        m.addAction(tr("No Recent Searches"));
        return;
    }

    QAction *recent = m.addAction(tr("Recent Searches"));
    recent.setEnabled(false);
    for (int i = 0; i < list.count(); ++i) {
        QString text = list.at(i);
        m.addAction(text).setData(text);
    }
    m.addSeparator();
    m.addAction(tr("Clear Recent Searches"), this, SLOT(clear()));
}

    void triggeredMenuAction(QAction *action)
{
    QVariant v = action.data();
    if (v.canConvert<QString>()) {
        QString text = v.toString();
        lineEdit().setText(text);
        searchNow();
    }
}

private:
    void load()
{
    QSettings settings;
    settings.beginGroup(QLatin1String("toolbarsearch"));
    QStringList list = settings.value(QLatin1String("recentSearches")).toStringList();
    m_maxSavedSearches = settings.value(QLatin1String("maximumSaved"), m_maxSavedSearches).toInt();
    m_stringListModel.setStringList(list);
    settings.endGroup();
}

    AutoSaver *m_autosaver;
    int m_maxSavedSearches;
    QStringListModel *m_stringListModel;
}