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#include "toolbarsearch.h"

#include "autosaver.h"

#include <QtCore/QSettings>

#include <QtCore/QUrl>

#include <QtGui/QCompleter>

#include <QtGui/QMenu>

#include <QtGui/QStringListModel>

#include <QtWebKit/QWebSettings>

/*

    ToolbarSearch is a very basic search widget that also contains a small history.

    Searches are turned into urls that use Google to perform search

 */

ToolbarSearch::ToolbarSearch(QWidget *parent)

    : SearchLineEdit(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();

}

ToolbarSearch::~ToolbarSearch()

{

    m_autosaver->saveIfNeccessary();

}

void ToolbarSearch::save()

{

    QSettings settings;

    settings.beginGroup(QLatin1String("toolbarsearch"));

    settings.setValue(QLatin1String("recentSearches"), m_stringListModel->stringList());

    settings.setValue(QLatin1String("maximumSaved"), m_maxSavedSearches);

    settings.endGroup();

}

void ToolbarSearch::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();

}

void ToolbarSearch::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);

}

void ToolbarSearch::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 ToolbarSearch::triggeredMenuAction(QAction *action)

{

    QVariant v = action->data();

    if (v.canConvert<QString>()) {

        QString text = v.toString();

        lineEdit()->setText(text);

        searchNow();

    }

}

void ToolbarSearch::clear()

{

    m_stringListModel->setStringList(QStringList());

    m_autosaver->changeOccurred();;

}