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// -*- mode: c++; c-basic-offset: 4 -*-
/*
Copyright (C) 2006 Daniele Galdi <[email protected]>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*/
/* Project related */
#include "adblock.h"
#include "adblockdialogue.h"
/* Kde related */
#include <kgenericfactory.h>
#include <kdebug.h>
#include <kiconloader.h>
#include <klibloader.h>
#include <kparts/statusbarextension.h>
#include <khtml_part.h>
#include <khtml_settings.h>
#include <kstatusbar.h>
#include <kurllabel.h>
#include <kdialogbase.h>
#include <kurl.h>
#include <kconfig.h>
#include <kmessagebox.h>
#include <kstandarddirs.h>
#include <kpopupmenu.h>
#include <kcmultidialog.h>
#include <klocale.h>
#include <dom/html_document.h>
#include <dom/html_image.h>
#include <dom/html_inline.h>
#include <dom/html_misc.h>
#include <dom/html_element.h>
#include <dom/dom_doc.h>
#include <dom/dom_node.h>
using namespace DOM;
#include <tqpixmap.h>
#include <tqcursor.h>
#include <tqregexp.h>
typedef KGenericFactory<AdBlock> AdBlockFactory;
K_EXPORT_COMPONENT_FACTORY( libadblock, AdBlockFactory( "adblock" ) )
AdBlock::AdBlock(TQObject *parent, const char *name, const TQStringList &) :
KParts::Plugin(parent, name),
m_label(0), m_menu(0)
{
m_part = dynamic_cast<KHTMLPart *>(parent);
if(!m_part) { kdDebug() << "couldn't get KHTMLPart" << endl; return; }
m_menu = new KPopupMenu(m_part->widget());
m_menu->insertTitle(i18n("Adblock"));
m_menu->insertItem(i18n("Configure"), this, TQT_SLOT(showKCModule()));
m_menu->insertItem(i18n("Show Elements"), this, TQT_SLOT(showDialogue()));
connect(m_part, TQT_SIGNAL(completed()), this, TQT_SLOT(initLabel()));
}
AdBlock::~AdBlock()
{
KParts::StatusBarExtension *statusBarEx = KParts::StatusBarExtension::childObject(m_part);
if (!statusBarEx) { kdDebug() << "couldn't get KParts::StatusBarExtension" << endl; return; }
statusBarEx->removeStatusBarItem(m_label);
delete m_menu;
}
void AdBlock::initLabel()
{
if (m_label) return;
KParts::StatusBarExtension *statusBarEx = KParts::StatusBarExtension::childObject(m_part);
if (!statusBarEx) { kdDebug() << "couldn't get KParts::StatusBarExtension" << endl; return; }
m_label = new KURLLabel(statusBarEx->statusBar());
KIconLoader *loader = instance()->iconLoader();
m_label->setFixedHeight(loader->currentSize(KIcon::Small));
m_label->setSizePolicy(TQSizePolicy(TQSizePolicy::Fixed, TQSizePolicy::Fixed));
m_label->setUseCursor(false);
m_label->setPixmap(loader->loadIcon("filter", KIcon::Small));
statusBarEx->addStatusBarItem(m_label, 0, false);
connect(m_label, TQT_SIGNAL(leftClickedURL()), this, TQT_SLOT(showDialogue()));
connect(m_label, TQT_SIGNAL(rightClickedURL()), this, TQT_SLOT(contextMenu()));
}
void AdBlock::showDialogue()
{
if (!m_part->settings()->isAdFilterEnabled())
{
KMessageBox::error(0,
i18n("Please enable Konqueror's Adblock"),
i18n("Adblock disabled"));
return;
}
AdElementList elements;
fillBlockableElements(elements);
AdBlockDlg *dialogue = new AdBlockDlg(m_part->widget(), elements);
connect(dialogue, TQT_SIGNAL( notEmptyFilter(const TQString&) ), this, TQT_SLOT( addAdFilter(const TQString&) ));
connect(dialogue, TQT_SIGNAL( cancelClicked() ), dialogue, TQT_SLOT( delayedDestruct() ));
connect(dialogue, TQT_SIGNAL( closeClicked() ), dialogue, TQT_SLOT( delayedDestruct() ));
dialogue->show();
}
void AdBlock::showKCModule()
{
KCMultiDialog* dialogue = new KCMultiDialog(m_part->widget());
dialogue->addModule("khtml_filter");
connect(dialogue, TQT_SIGNAL( cancelClicked() ), dialogue, TQT_SLOT( delayedDestruct() ));
connect(dialogue, TQT_SIGNAL( closeClicked() ), dialogue, TQT_SLOT( delayedDestruct() ));
dialogue->show();
}
void AdBlock::contextMenu()
{
m_menu->popup(TQCursor::pos());
}
void AdBlock::fillBlockableElements(AdElementList &elements)
{
fillWithHtmlTag(elements, "script", "src", "SCRIPT");
fillWithHtmlTag(elements, "embed" , "src", "OBJECT");
fillWithHtmlTag(elements, "object", "src", "OBJECT");
fillWithImages(elements);
const KHTMLSettings *settings = m_part->settings();
AdElementList::iterator it;
for ( it = elements.begin(); it != elements.end(); ++it )
{
AdElement &element = (*it);
if (settings->isAdFiltered( element.url() ))
{
element.setBlocked(true);
}
}
}
void AdBlock::fillWithImages(AdElementList &elements)
{
HTMLDocument htmlDoc = m_part->htmlDocument();
HTMLCollection images = htmlDoc.images();
for (unsigned int i = 0; i < images.length(); i++)
{
HTMLImageElement image = static_cast<HTMLImageElement>( images.item(i) );
DOMString src = image.src();
TQString url = htmlDoc.completeURL(src).string();
if (!url.isEmpty() && url != m_part->baseURL().url())
{
AdElement element(url, "image", "IMG", false);
if (!elements.contains( element ))
elements.append( element);
}
}
}
void AdBlock::fillWithHtmlTag(AdElementList &elements,
const DOMString &tagName,
const DOMString &attrName,
const TQString &category)
{
Document doc = m_part->document();
NodeList nodes = doc.getElementsByTagName(tagName);
for (unsigned int i = 0; i < nodes.length(); i++)
{
Node node = nodes.item(i);
Node attr = node.attributes().getNamedItem(attrName);
DOMString src = attr.nodeValue();
if (src.isNull()) continue;
TQString url = doc.completeURL(src).string();
if (!url.isEmpty() && url != m_part->baseURL().url())
{
AdElement element(url, tagName.string(), category, false);
if (!elements.contains( element ))
elements.append( element);
}
}
}
void AdBlock::addAdFilter(const TQString &url)
{
//FIXME hackish
KHTMLSettings *settings = const_cast<KHTMLSettings *>(m_part->settings());
settings->addAdFilter(url);
}
// ----------------------------------------------------------------------------
AdElement::AdElement() :
m_url(0), m_category(0), m_type(0), m_blocked(false) {}
AdElement::AdElement(const TQString &url, const TQString &category,
const TQString &type, bool blocked) :
m_url(url), m_category(category), m_type(type), m_blocked(blocked) {}
AdElement &AdElement::operator=(const AdElement &obj)
{
m_blocked = obj.m_blocked;
m_url = obj.m_url;
m_category = obj.m_category;
m_type = obj.m_type;
return *this;
}
bool AdElement::operator==(const AdElement &obj)
{
return m_url == obj.m_url;
}
bool AdElement::isBlocked() const
{
return m_blocked;
}
void AdElement::setBlocked(bool blocked)
{
m_blocked = blocked;
}
const TQString &AdElement::url() const
{
return m_url;
}
const TQString &AdElement::category() const
{
return m_category;
}
const TQString &AdElement::type() const
{
return m_type;
}
#include "adblock.moc"
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