findnotificationwk.cpp

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Boost Software License - Version 1.0 - August 17th, 2003
 *
 * Permission is hereby granted, free of charge, to any person or organization
 * obtaining a copy of the software and accompanying documentation covered by
 * this license (the "Software") to use, reproduce, display, distribute,
 * execute, and transmit the Software, and to prepare derivative works of the
 * Software, and to permit third-parties to whom the Software is furnished to
 * do so, all subject to the following:
 *
 * The copyright notices in the Software and this entire statement, including
 * the above license grant, this restriction and the following disclaimer,
 * must be included in all copies of the Software, in whole or in part, and
 * all derivative works of the Software, unless such copies or derivative
 * works are solely in the form of machine-executable object code generated by
 * a source language processor.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
 * SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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 **********************************************************************/
 
#include "findnotificationwk.h"
#include <QWebView>
#include <util/sll/slotclosure.h>
 
namespace LC
{
namespace Util
{
    FindNotificationWk::FindNotificationWk (ICoreProxy_ptr proxy, QWebView *near)
    : FindNotification { proxy, near }
    , WebView_ { near }
    {
        new Util::SlotClosure<Util::NoDeletePolicy>
        {
            [this]
            {
                if (PreviousFindText_.isEmpty ())
                    return;
 
                ClearFindResults ();
                findNext ();
            },
            near,
            SIGNAL (loadFinished (bool)),
            this
        };
    }
 
    QWebPage::FindFlags FindNotificationWk::ToPageFlags (FindFlags flags)
    {
        QWebPage::FindFlags pageFlags;
        auto check = [&pageFlags, flags] (FindFlag ourFlag, QWebPage::FindFlag pageFlag)
        {
            if (flags & ourFlag)
                pageFlags |= pageFlag;
        };
        check (FindCaseSensitively, QWebPage::FindCaseSensitively);
        check (FindBackwards, QWebPage::FindBackward);
        check (FindWrapsAround, QWebPage::FindWrapsAroundDocument);
        return pageFlags;
    }
 
    void FindNotificationWk::ClearFindResults ()
    {
        PreviousFindText_ = "";
        WebView_->page ()->findText ("", QWebPage::HighlightAllOccurrences);
    }
 
    void FindNotificationWk::handleNext (const QString& text, FindNotification::FindFlags findFlags)
    {
        const auto flags = ToPageFlags (findFlags);
 
        if (PreviousFindText_ != text)
        {
            const auto nflags = flags | QWebPage::HighlightAllOccurrences;
            WebView_->page ()->findText ({}, nflags);
            WebView_->page ()->findText (text, nflags);
            PreviousFindText_ = text;
        }
 
        const auto found = WebView_->page ()->findText (text, flags);
        SetSuccessful (found);
    }
 
    void FindNotificationWk::reject ()
    {
        FindNotification::reject ();
        ClearFindResults ();
    }
}
}