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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** This file is part of Qt Creator.
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** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
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#include "opendocumentsfilter.h"

#include <coreplugin/editormanager/editormanager.h>
#include <coreplugin/editormanager/ieditor.h>
#include <utils/fileutils.h>

#include <QFileInfo>

using namespace Core;
using namespace Locator;
using namespace Locator::Internal;
using namespace Utils;

OpenDocumentsFilter::OpenDocumentsFilter()
{
    setId("Open documents");
    setDisplayName(tr("Open Documents"));
    setShortcutString(QString(QLatin1Char('o')));
    setIncludedByDefault(true);

    connect(EditorManager::instance(), SIGNAL(editorOpened(Core::IEditor*)),
            this, SLOT(refreshInternally()));
    connect(EditorManager::instance(), SIGNAL(editorsClosed(QList<Core::IEditor*>)),
            this, SLOT(refreshInternally()));
}

QList<FilterEntry> OpenDocumentsFilter::matchesFor(QFutureInterface<Locator::FilterEntry> &future, const QString &entry_)
{
    QList<FilterEntry> goodEntries;
    QList<FilterEntry> betterEntries;
    QString entry = entry_;
    const QString lineNoSuffix = EditorManager::splitLineNumber(&entry);
    const QChar asterisk = QLatin1Char('*');
    QString pattern = QString(asterisk);
    pattern += entry;
    pattern += asterisk;
    QRegExp regexp(pattern, Qt::CaseInsensitive, QRegExp::Wildcard);
    if (!regexp.isValid())
        return goodEntries;
    const Qt::CaseSensitivity caseSensitivityForPrefix = caseSensitivity(entry);
    foreach (const DocumentModel::Entry &editorEntry, m_editors) {
        if (future.isCanceled())
            break;
        QString fileName = editorEntry.fileName();
        if (fileName.isEmpty())
            continue;
        QString displayName = editorEntry.displayName();
        if (regexp.exactMatch(displayName)) {
            QFileInfo fi(fileName);
            FilterEntry fiEntry(this, fi.fileName(), QString(fileName + lineNoSuffix));
            fiEntry.extraInfo = FileUtils::shortNativePath(FileName(fi));
            fiEntry.fileName = fileName;
            QList<FilterEntry> &category = displayName.startsWith(entry, caseSensitivityForPrefix)
                    ? betterEntries : goodEntries;
            category.append(fiEntry);
        }
    }
    betterEntries.append(goodEntries);
    return betterEntries;
}

void OpenDocumentsFilter::refreshInternally()
{
    m_editors.clear();
    foreach (DocumentModel::Entry *e, EditorManager::documentModel()->documents()) {
        DocumentModel::Entry entry;
        // create copy with only the information relevant to use
        // to avoid model deleting entries behind our back
        entry.m_displayName = e->displayName();
        entry.m_fileName = e->fileName();
        m_editors.append(entry);
    }
}

void OpenDocumentsFilter::refresh(QFutureInterface<void> &future)
{
    Q_UNUSED(future)
    QMetaObject::invokeMethod(this, "refreshInternally", Qt::BlockingQueuedConnection);
}

void OpenDocumentsFilter::accept(FilterEntry selection) const
{
    EditorManager::openEditor(selection.internalData.toString(), Id(),
                              EditorManager::CanContainLineNumber);
}