From ce4a32fe52ef09d8f5ff1dd22c001110902b60a2 Mon Sep 17 00:00:00 2001
From: toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>
Date: Wed, 25 Nov 2009 17:56:58 +0000
Subject: Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
 BUG:215923

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
---
 khtml/khtmlimage.cpp | 357 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 357 insertions(+)
 create mode 100644 khtml/khtmlimage.cpp

(limited to 'khtml/khtmlimage.cpp')

diff --git a/khtml/khtmlimage.cpp b/khtml/khtmlimage.cpp
new file mode 100644
index 000000000..4f48c2915
--- /dev/null
+++ b/khtml/khtmlimage.cpp
@@ -0,0 +1,357 @@
+/* This file is part of the KDE project
+   Copyright (C) 2000 Simon Hausmann <hausmann@kde.org>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this library; see the file COPYING.LIB.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#include "khtmlimage.h"
+#include "khtmlview.h"
+#include "khtml_ext.h"
+#include "xml/dom_docimpl.h"
+#include "html/html_documentimpl.h"
+#include "html/html_elementimpl.h"
+#include "rendering/render_image.h"
+#include "misc/loader.h"
+
+#include <qvbox.h>
+#include <qtimer.h>
+
+#include <kio/job.h>
+#include <kinstance.h>
+#include <kmimetype.h>
+#include <klocale.h>
+
+K_EXPORT_COMPONENT_FACTORY( khtmlimagefactory /*NOT the part name, see Makefile.am*/, KHTMLImageFactory )
+
+KInstance *KHTMLImageFactory::s_instance = 0;
+
+KHTMLImageFactory::KHTMLImageFactory()
+{
+    s_instance = new KInstance( "khtmlimage" );
+}
+
+KHTMLImageFactory::~KHTMLImageFactory()
+{
+    delete s_instance;
+}
+
+KParts::Part *KHTMLImageFactory::createPartObject( QWidget *parentWidget, const char *widgetName,
+                                                   QObject *parent, const char *name,
+                                                   const char *className, const QStringList & )
+{
+  KHTMLPart::GUIProfile prof = KHTMLPart::DefaultGUI;
+  if ( strcmp( className, "Browser/View" ) == 0 )
+    prof = KHTMLPart::BrowserViewGUI;
+  return new KHTMLImage( parentWidget, widgetName, parent, name, prof );
+}
+
+KHTMLImage::KHTMLImage( QWidget *parentWidget, const char *widgetName,
+                        QObject *parent, const char *name, KHTMLPart::GUIProfile prof )
+    : KParts::ReadOnlyPart( parent, name ), m_image( 0 )
+{
+    KHTMLPart* parentPart = ::qt_cast<KHTMLPart *>( parent );
+    setInstance( KHTMLImageFactory::instance(), prof == KHTMLPart::BrowserViewGUI && !parentPart );
+
+    QVBox *box = new QVBox( parentWidget, widgetName );
+
+    m_khtml = new KHTMLPart( box, widgetName, this, "htmlimagepart", prof );
+    m_khtml->setAutoloadImages( true );
+    m_khtml->widget()->installEventFilter(this);
+    connect( m_khtml->view(), SIGNAL( finishedLayout() ), this, SLOT( restoreScrollPosition() ) );
+
+    setWidget( box );
+
+    // VBox can't take focus, so pass it on to sub-widget
+    box->setFocusProxy( m_khtml->widget() );
+
+    m_ext = new KHTMLImageBrowserExtension( this, "be" );
+
+    // Remove unnecessary actions.
+    KAction *encodingAction = actionCollection()->action( "setEncoding" );
+    if ( encodingAction )
+    {
+        encodingAction->unplugAll();
+        delete encodingAction;
+    }
+    KAction *viewSourceAction= actionCollection()->action( "viewDocumentSource" );
+    if ( viewSourceAction )
+    {
+        viewSourceAction->unplugAll();
+        delete viewSourceAction;
+    }
+
+    KAction *selectAllAction= actionCollection()->action( "selectAll" );
+    if ( selectAllAction )
+    {
+        selectAllAction->unplugAll();
+        delete selectAllAction;
+    }
+
+    // forward important signals from the khtml part
+
+    // forward opening requests to parent frame (if existing)
+    KHTMLPart *p = ::qt_cast<KHTMLPart *>(parent);
+    KParts::BrowserExtension *be = p ? p->browserExtension() : m_ext;
+    connect(m_khtml->browserExtension(), SIGNAL(openURLRequestDelayed(const KURL &, const KParts::URLArgs &)),
+    		be, SIGNAL(openURLRequestDelayed(const KURL &, const KParts::URLArgs &)));
+
+    connect( m_khtml->browserExtension(), SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KURL &,
+             const KParts::URLArgs &, KParts::BrowserExtension::PopupFlags, mode_t) ), m_ext, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KURL &,
+             const KParts::URLArgs &, KParts::BrowserExtension::PopupFlags, mode_t) ) );
+
+    connect( m_khtml->browserExtension(), SIGNAL( enableAction( const char *, bool ) ),
+             m_ext, SIGNAL( enableAction( const char *, bool ) ) );
+
+    m_ext->setURLDropHandlingEnabled( true );
+}
+
+KHTMLImage::~KHTMLImage()
+{
+    disposeImage();
+
+    // important: delete the html part before the part or qobject destructor runs.
+    // we now delete the htmlpart which deletes the part's widget which makes
+    // _OUR_ m_widget 0 which in turn avoids our part destructor to delete the
+    // widget ;-)
+    // ### additional note: it _can_ be that the part has been deleted before:
+    // when we're in a html frameset and the view dies first, then it will also
+    // kill the htmlpart
+    if ( m_khtml )
+        delete static_cast<KHTMLPart *>( m_khtml );
+}
+
+bool KHTMLImage::openURL( const KURL &url )
+{
+    static const QString &html = KGlobal::staticQString( "<html><body><img src=\"%1\"></body></html>" );
+
+    disposeImage();
+
+    m_url = url;
+
+    emit started( 0 );
+
+    KParts::URLArgs args = m_ext->urlArgs();
+    m_mimeType = args.serviceType;
+
+    emit setWindowCaption( url.prettyURL() );
+
+    // Need to keep a copy of the offsets since they are cleared when emitting completed
+    m_xOffset = args.xOffset;
+    m_yOffset = args.yOffset;
+
+    m_khtml->begin( m_url );
+    m_khtml->setAutoloadImages( true );
+
+    DOM::DocumentImpl *impl = dynamic_cast<DOM::DocumentImpl *>( m_khtml->document().handle() ); // ### hack ;-)
+    if (!impl) return false;
+    if ( m_ext->urlArgs().reload )
+        impl->docLoader()->setCachePolicy( KIO::CC_Reload );
+
+    khtml::DocLoader *dl = impl->docLoader();
+    m_image = dl->requestImage( m_url.url() );
+    if ( m_image )
+        m_image->ref( this );
+
+    m_khtml->write( html.arg( m_url.url() ) );
+    m_khtml->end();
+
+    /*
+    connect( khtml::Cache::loader(), SIGNAL( requestDone( khtml::DocLoader*, khtml::CachedObject *) ),
+            this, SLOT( updateWindowCaption() ) );
+            */
+    return true;
+}
+
+bool KHTMLImage::closeURL()
+{
+    disposeImage();
+    return m_khtml->closeURL();
+}
+
+// This can happen after openURL returns, or directly from m_image->ref()
+void KHTMLImage::notifyFinished( khtml::CachedObject *o )
+{
+    if ( !m_image || o != m_image )
+        return;
+
+    const QPixmap &pix = m_image->pixmap();
+    QString caption;
+
+    KMimeType::Ptr mimeType;
+    if ( !m_mimeType.isEmpty() )
+        mimeType = KMimeType::mimeType( m_mimeType );
+
+    if ( mimeType ) {
+        if (m_image && !m_image->suggestedTitle().isEmpty()) {
+            caption = i18n( "%1 (%2 - %3x%4 Pixels)" ).arg( m_image->suggestedTitle(), mimeType->comment() ).arg( pix.width() ).arg( pix.height() );
+        } else {
+            caption = i18n( "%1 - %2x%3 Pixels" ).arg( mimeType->comment() )
+                .arg( pix.width() ).arg( pix.height() );
+        }
+    } else {
+        if (m_image && !m_image->suggestedTitle().isEmpty()) {
+            caption = i18n( "%1 (%2x%3 Pixels)" ).arg(m_image->suggestedTitle()).arg( pix.width() ).arg( pix.height() );
+        } else {
+            caption = i18n( "Image - %1x%2 Pixels" ).arg( pix.width() ).arg( pix.height() );
+        }
+    }
+
+    emit setWindowCaption( caption );
+    emit completed();
+    emit setStatusBarText(i18n("Done."));
+}
+
+void KHTMLImage::restoreScrollPosition()
+{
+    if ( m_khtml->view()->contentsY() == 0 ) {
+        m_khtml->view()->setContentsPos( m_xOffset, m_yOffset );
+    }
+}
+
+void KHTMLImage::guiActivateEvent( KParts::GUIActivateEvent *e )
+{
+    // prevent the base implementation from emitting setWindowCaption with
+    // our url. It destroys our pretty, previously caption. Konq saves/restores
+    // the caption for us anyway.
+    if ( e->activated() )
+        return;
+    KParts::ReadOnlyPart::guiActivateEvent(e);
+}
+
+/*
+void KHTMLImage::slotImageJobFinished( KIO::Job *job )
+{
+    if ( job->error() )
+    {
+        job->showErrorDialog();
+        emit canceled( job->errorString() );
+    }
+    else
+    {
+        emit completed();
+        QTimer::singleShot( 0, this, SLOT( updateWindowCaption() ) );
+    }
+}
+
+void KHTMLImage::updateWindowCaption()
+{
+    if ( !m_khtml )
+        return;
+
+    DOM::HTMLDocumentImpl *impl = dynamic_cast<DOM::HTMLDocumentImpl *>( m_khtml->document().handle() );
+    if ( !impl )
+        return;
+
+    DOM::HTMLElementImpl *body = impl->body();
+    if ( !body )
+        return;
+
+    DOM::NodeImpl *image = body->firstChild();
+    if ( !image )
+        return;
+
+    khtml::RenderImage *renderImage = dynamic_cast<khtml::RenderImage *>( image->renderer() );
+    if ( !renderImage )
+        return;
+
+    QPixmap pix = renderImage->pixmap();
+
+    QString caption;
+
+    KMimeType::Ptr mimeType;
+    if ( !m_mimeType.isEmpty() )
+        mimeType = KMimeType::mimeType( m_mimeType );
+
+    if ( mimeType )
+        caption = i18n( "%1 - %2x%3 Pixels" ).arg( mimeType->comment() )
+                  .arg( pix.width() ).arg( pix.height() );
+    else
+        caption = i18n( "Image - %1x%2 Pixels" ).arg( pix.width() ).arg( pix.height() );
+
+    emit setWindowCaption( caption );
+    emit completed();
+    emit setStatusBarText(i18n("Done."));
+}
+*/
+
+void KHTMLImage::disposeImage()
+{
+    if ( !m_image )
+        return;
+
+    m_image->deref( this );
+    m_image = 0;
+}
+
+bool KHTMLImage::eventFilter(QObject *, QEvent *e) {
+    switch (e->type()) {
+      case QEvent::DragEnter:
+      case QEvent::DragMove:
+      case QEvent::DragLeave:
+      case QEvent::Drop: {
+        // find out if this part is embedded in a frame, and send the
+	// event to its outside widget
+	KHTMLPart *p = ::qt_cast<KHTMLPart *>(parent());
+	if (p)
+	    return QApplication::sendEvent(p->widget(), e);
+        // otherwise simply forward all dnd events to the part widget,
+	// konqueror will handle them properly there
+        return QApplication::sendEvent(widget(), e);
+      }
+      default: ;
+    }
+    return false;
+}
+
+KHTMLImageBrowserExtension::KHTMLImageBrowserExtension( KHTMLImage *parent, const char *name )
+    : KParts::BrowserExtension( parent, name )
+{
+    m_imgPart = parent;
+}
+
+int KHTMLImageBrowserExtension::xOffset()
+{
+    return m_imgPart->doc()->view()->contentsX();
+}
+
+int KHTMLImageBrowserExtension::yOffset()
+{
+    return m_imgPart->doc()->view()->contentsY();
+}
+
+void KHTMLImageBrowserExtension::print()
+{
+    static_cast<KHTMLPartBrowserExtension *>( m_imgPart->doc()->browserExtension() )->print();
+}
+
+void KHTMLImageBrowserExtension::reparseConfiguration()
+{
+    static_cast<KHTMLPartBrowserExtension *>( m_imgPart->doc()->browserExtension() )->reparseConfiguration();
+    m_imgPart->doc()->setAutoloadImages( true );
+}
+
+
+void KHTMLImageBrowserExtension::disableScrolling()
+{
+    static_cast<KHTMLPartBrowserExtension *>( m_imgPart->doc()->browserExtension() )->disableScrolling();
+}
+
+using namespace KParts;
+
+/* vim: et sw=4 ts=4
+ */
+
+#include "khtmlimage.moc"
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