khtmlview.cpp

00001 /* This file is part of the KDE project
00002  *
00003  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
00004  *                     1999 Lars Knoll <knoll@kde.org>
00005  *                     1999 Antti Koivisto <koivisto@kde.org>
00006  *                     2000-2004 Dirk Mueller <mueller@kde.org>
00007  *                     2003 Leo Savernik <l.savernik@aon.at>
00008  *                     2003-2004 Apple Computer, Inc.
00009  *
00010  * This library is free software; you can redistribute it and/or
00011  * modify it under the terms of the GNU Library General Public
00012  * License as published by the Free Software Foundation; either
00013  * version 2 of the License, or (at your option) any later version.
00014  *
00015  * This library is distributed in the hope that it will be useful,
00016  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00017  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018  * Library General Public License for more details.
00019  *
00020  * You should have received a copy of the GNU Library General Public License
00021  * along with this library; see the file COPYING.LIB.  If not, write to
00022  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00023  * Boston, MA 02110-1301, USA.
00024  */
00025 
00026 
00027 #include "khtmlview.moc"
00028 
00029 #include "khtmlview.h"
00030 
00031 #include "khtml_part.h"
00032 #include "khtml_events.h"
00033 
00034 #include "html/html_documentimpl.h"
00035 #include "html/html_inlineimpl.h"
00036 #include "html/html_formimpl.h"
00037 #include "rendering/render_arena.h"
00038 #include "rendering/render_canvas.h"
00039 #include "rendering/render_frames.h"
00040 #include "rendering/render_replaced.h"
00041 #include "rendering/render_layer.h"
00042 #include "rendering/render_line.h"
00043 #include "rendering/render_table.h"
00044 // removeme
00045 #define protected public
00046 #include "rendering/render_text.h"
00047 #undef protected
00048 #include "xml/dom2_eventsimpl.h"
00049 #include "css/cssstyleselector.h"
00050 #include "css/csshelper.h"
00051 #include "misc/htmlhashes.h"
00052 #include "misc/helper.h"
00053 #include "khtml_settings.h"
00054 #include "khtml_printsettings.h"
00055 
00056 #include "khtmlpart_p.h"
00057 
00058 #ifndef KHTML_NO_CARET
00059 #include "khtml_caret_p.h"
00060 #include "xml/dom2_rangeimpl.h"
00061 #endif
00062 
00063 #include <kapplication.h>
00064 #include <kcursor.h>
00065 #include <kdebug.h>
00066 #include <kdialogbase.h>
00067 #include <kiconloader.h>
00068 #include <kimageio.h>
00069 #include <klocale.h>
00070 #include <knotifyclient.h>
00071 #include <kprinter.h>
00072 #include <ksimpleconfig.h>
00073 #include <kstandarddirs.h>
00074 #include <kstdaccel.h>
00075 #include <kstringhandler.h>
00076 #include <kurldrag.h>
00077 
00078 #include <qbitmap.h>
00079 #include <qlabel.h>
00080 #include <qobjectlist.h>
00081 #include <qpaintdevicemetrics.h>
00082 #include <qpainter.h>
00083 #include <qptrdict.h>
00084 #include <qtooltip.h>
00085 #include <qstring.h>
00086 #include <qstylesheet.h>
00087 #include <qtimer.h>
00088 #include <qvaluevector.h>
00089 
00090 //#define DEBUG_NO_PAINT_BUFFER
00091 
00092 //#define DEBUG_FLICKER
00093 
00094 //#define DEBUG_PIXEL
00095 
00096 #ifdef Q_WS_X11
00097 #include <X11/Xlib.h>
00098 #include <fixx11h.h>
00099 #endif
00100 
00101 #define PAINT_BUFFER_HEIGHT 128
00102 
00103 #if 0
00104 namespace khtml {
00105     void dumpLineBoxes(RenderFlow *flow);
00106 }
00107 #endif
00108 
00109 using namespace DOM;
00110 using namespace khtml;
00111 class KHTMLToolTip;
00112 
00113 
00114 #ifndef QT_NO_TOOLTIP
00115 
00116 class KHTMLToolTip : public QToolTip
00117 {
00118 public:
00119     KHTMLToolTip(KHTMLView *view,  KHTMLViewPrivate* vp) : QToolTip(view->viewport())
00120     {
00121         m_view = view;
00122         m_viewprivate = vp;
00123     };
00124 
00125 protected:
00126     virtual void maybeTip(const QPoint &);
00127 
00128 private:
00129     KHTMLView *m_view;
00130     KHTMLViewPrivate* m_viewprivate;
00131 };
00132 
00133 #endif
00134 
00135 class KHTMLViewPrivate {
00136     friend class KHTMLToolTip;
00137 public:
00138 
00139     enum PseudoFocusNodes {
00140     PFNone,
00141     PFTop,
00142     PFBottom
00143     };
00144 
00145     enum CompletedState {
00146         CSNone = 0,
00147         CSFull,
00148         CSActionPending
00149     };
00150 
00151     KHTMLViewPrivate()
00152         : underMouse( 0 ), underMouseNonShared( 0 ), visibleWidgets( 107 )
00153     {
00154 #ifndef KHTML_NO_CARET
00155     m_caretViewContext = 0;
00156     m_editorContext = 0;
00157 #endif // KHTML_NO_CARET
00158         postponed_autorepeat = NULL;
00159         reset();
00160         vmode = QScrollView::Auto;
00161     hmode = QScrollView::Auto;
00162         tp=0;
00163         paintBuffer=0;
00164         vertPaintBuffer=0;
00165         formCompletions=0;
00166         prevScrollbarVisible = true;
00167     tooltip = 0;
00168         possibleTripleClick = false;
00169         emitCompletedAfterRepaint = CSNone;
00170     cursor_icon_widget = NULL;
00171         m_mouseScrollTimer = 0;
00172         m_mouseScrollIndicator = 0;
00173     }
00174     ~KHTMLViewPrivate()
00175     {
00176         delete formCompletions;
00177         delete tp; tp = 0;
00178         delete paintBuffer; paintBuffer =0;
00179         delete vertPaintBuffer;
00180         delete postponed_autorepeat;
00181         if (underMouse)
00182         underMouse->deref();
00183         if (underMouseNonShared)
00184         underMouseNonShared->deref();
00185     delete tooltip;
00186 #ifndef KHTML_NO_CARET
00187     delete m_caretViewContext;
00188     delete m_editorContext;
00189 #endif // KHTML_NO_CARET
00190         delete cursor_icon_widget;
00191         delete m_mouseScrollTimer;
00192         delete m_mouseScrollIndicator;
00193     }
00194     void reset()
00195     {
00196         if (underMouse)
00197         underMouse->deref();
00198     underMouse = 0;
00199         if (underMouseNonShared)
00200         underMouseNonShared->deref();
00201     underMouseNonShared = 0;
00202         linkPressed = false;
00203         useSlowRepaints = false;
00204     tabMovePending = false;
00205     lastTabbingDirection = true;
00206     pseudoFocusNode = PFNone;
00207 #ifndef KHTML_NO_SCROLLBARS
00208         //We don't turn off the toolbars here
00209     //since if the user turns them
00210     //off, then chances are they want them turned
00211     //off always - even after a reset.
00212 #else
00213         vmode = QScrollView::AlwaysOff;
00214         hmode = QScrollView::AlwaysOff;
00215 #endif
00216 #ifdef DEBUG_PIXEL
00217         timer.start();
00218         pixelbooth = 0;
00219         repaintbooth = 0;
00220 #endif
00221         scrollBarMoved = false;
00222         contentsMoving = false;
00223         ignoreWheelEvents = false;
00224     borderX = 30;
00225     borderY = 30;
00226         paged = false;
00227     clickX = -1;
00228     clickY = -1;
00229         prevMouseX = -1;
00230         prevMouseY = -1;
00231     clickCount = 0;
00232     isDoubleClick = false;
00233     scrollingSelf = false;
00234         delete postponed_autorepeat;
00235         postponed_autorepeat = NULL;
00236     layoutTimerId = 0;
00237         repaintTimerId = 0;
00238         scrollTimerId = 0;
00239         scrollSuspended = false;
00240         scrollSuspendPreActivate = false;
00241         complete = false;
00242         firstRelayout = true;
00243         needsFullRepaint = true;
00244         dirtyLayout = false;
00245         layoutSchedulingEnabled = true;
00246         painting = false;
00247         updateRegion = QRegion();
00248         m_dialogsAllowed = true;
00249 #ifndef KHTML_NO_CARET
00250         if (m_caretViewContext) {
00251           m_caretViewContext->caretMoved = false;
00252       m_caretViewContext->keyReleasePending = false;
00253         }/*end if*/
00254 #endif // KHTML_NO_CARET
00255 #ifndef KHTML_NO_TYPE_AHEAD_FIND
00256         typeAheadActivated = false;
00257 #endif // KHTML_NO_TYPE_AHEAD_FIND
00258     accessKeysActivated = false;
00259     accessKeysPreActivate = false;
00260 
00261         // We ref/deref to ensure defaultHTMLSettings is available
00262         KHTMLFactory::ref();
00263         accessKeysEnabled = KHTMLFactory::defaultHTMLSettings()->accessKeysEnabled();
00264         KHTMLFactory::deref();
00265 
00266         emitCompletedAfterRepaint = CSNone;
00267     }
00268     void newScrollTimer(QWidget *view, int tid)
00269     {
00270         //kdDebug(6000) << "newScrollTimer timer " << tid << endl;
00271         view->killTimer(scrollTimerId);
00272         scrollTimerId = tid;
00273         scrollSuspended = false;
00274     }
00275     enum ScrollDirection { ScrollLeft, ScrollRight, ScrollUp, ScrollDown };
00276 
00277     void adjustScroller(QWidget *view, ScrollDirection direction, ScrollDirection oppositedir)
00278     {
00279         static const struct { int msec, pixels; } timings [] = {
00280             {320,1}, {224,1}, {160,1}, {112,1}, {80,1}, {56,1}, {40,1},
00281             {28,1}, {20,1}, {20,2}, {20,3}, {20,4}, {20,6}, {20,8}, {0,0}
00282         };
00283         if (!scrollTimerId ||
00284             (static_cast<int>(scrollDirection) != direction &&
00285              (static_cast<int>(scrollDirection) != oppositedir || scrollSuspended))) {
00286             scrollTiming = 6;
00287             scrollBy = timings[scrollTiming].pixels;
00288             scrollDirection = direction;
00289             newScrollTimer(view, view->startTimer(timings[scrollTiming].msec));
00290         } else if (scrollDirection == direction &&
00291                    timings[scrollTiming+1].msec && !scrollSuspended) {
00292             scrollBy = timings[++scrollTiming].pixels;
00293             newScrollTimer(view, view->startTimer(timings[scrollTiming].msec));
00294         } else if (scrollDirection == oppositedir) {
00295             if (scrollTiming) {
00296                 scrollBy = timings[--scrollTiming].pixels;
00297                 newScrollTimer(view, view->startTimer(timings[scrollTiming].msec));
00298             }
00299         }
00300         scrollSuspended = false;
00301     }
00302 
00303 #ifndef KHTML_NO_CARET
00304 
00307     CaretViewContext *caretViewContext() {
00308       if (!m_caretViewContext) m_caretViewContext = new CaretViewContext();
00309       return m_caretViewContext;
00310     }
00314     EditorContext *editorContext() {
00315       if (!m_editorContext) m_editorContext = new EditorContext();
00316       return m_editorContext;
00317     }
00318 #endif // KHTML_NO_CARET
00319 
00320 #ifdef DEBUG_PIXEL
00321     QTime timer;
00322     unsigned int pixelbooth;
00323     unsigned int repaintbooth;
00324 #endif
00325 
00326     QPainter *tp;
00327     QPixmap  *paintBuffer;
00328     QPixmap  *vertPaintBuffer;
00329     NodeImpl *underMouse;
00330     NodeImpl *underMouseNonShared;
00331 
00332     bool tabMovePending:1;
00333     bool lastTabbingDirection:1;
00334     PseudoFocusNodes pseudoFocusNode:2;
00335     bool scrollBarMoved:1;
00336     bool contentsMoving:1;
00337 
00338     QScrollView::ScrollBarMode vmode;
00339     QScrollView::ScrollBarMode hmode;
00340     bool prevScrollbarVisible:1;
00341     bool linkPressed:1;
00342     bool useSlowRepaints:1;
00343     bool ignoreWheelEvents:1;
00344 
00345     int borderX, borderY;
00346     KSimpleConfig *formCompletions;
00347 
00348     bool paged;
00349 
00350     int clickX, clickY, clickCount;
00351     bool isDoubleClick;
00352 
00353     int prevMouseX, prevMouseY;
00354     bool scrollingSelf;
00355     int layoutTimerId;
00356     QKeyEvent* postponed_autorepeat;
00357 
00358     int repaintTimerId;
00359     int scrollTimerId;
00360     int scrollTiming;
00361     int scrollBy;
00362     ScrollDirection scrollDirection     :2;
00363     bool scrollSuspended            :1;
00364     bool scrollSuspendPreActivate       :1;
00365     bool complete               :1;
00366     bool firstRelayout              :1;
00367     bool layoutSchedulingEnabled        :1;
00368     bool needsFullRepaint           :1;
00369     bool painting               :1;
00370     bool possibleTripleClick            :1;
00371     bool dirtyLayout                           :1;
00372     bool m_dialogsAllowed           :1;
00373     QRegion updateRegion;
00374     KHTMLToolTip *tooltip;
00375     QPtrDict<QWidget> visibleWidgets;
00376 #ifndef KHTML_NO_CARET
00377     CaretViewContext *m_caretViewContext;
00378     EditorContext *m_editorContext;
00379 #endif // KHTML_NO_CARET
00380 #ifndef KHTML_NO_TYPE_AHEAD_FIND
00381     QString findString;
00382     QTimer timer;
00383     bool findLinksOnly;
00384     bool typeAheadActivated;
00385 #endif // KHTML_NO_TYPE_AHEAD_FIND
00386     bool accessKeysEnabled;
00387     bool accessKeysActivated;
00388     bool accessKeysPreActivate;
00389     CompletedState emitCompletedAfterRepaint;
00390 
00391     QWidget* cursor_icon_widget;
00392 
00393     // scrolling activated by MMB
00394     short m_mouseScroll_byX;
00395     short m_mouseScroll_byY;
00396     QTimer *m_mouseScrollTimer;
00397     QWidget *m_mouseScrollIndicator;
00398 };
00399 
00400 #ifndef QT_NO_TOOLTIP
00401 
00411 static bool findImageMapRect(HTMLImageElementImpl *img, const QPoint &scrollOfs,
00412             const QPoint &p, QRect &r, QString &s)
00413 {
00414     HTMLMapElementImpl* map;
00415     if (img && img->getDocument()->isHTMLDocument() &&
00416         (map = static_cast<HTMLDocumentImpl*>(img->getDocument())->getMap(img->imageMap()))) {
00417         RenderObject::NodeInfo info(true, false);
00418         RenderObject *rend = img->renderer();
00419         int ax, ay;
00420         if (!rend || !rend->absolutePosition(ax, ay))
00421             return false;
00422         // we're a client side image map
00423         bool inside = map->mapMouseEvent(p.x() - ax + scrollOfs.x(),
00424                 p.y() - ay + scrollOfs.y(), rend->contentWidth(),
00425                 rend->contentHeight(), info);
00426         if (inside && info.URLElement()) {
00427             HTMLAreaElementImpl *area = static_cast<HTMLAreaElementImpl *>(info.URLElement());
00428             Q_ASSERT(area->id() == ID_AREA);
00429             s = area->getAttribute(ATTR_TITLE).string();
00430             QRegion reg = area->cachedRegion();
00431             if (!s.isEmpty() && !reg.isEmpty()) {
00432                 r = reg.boundingRect();
00433                 r.moveBy(ax, ay);
00434                 return true;
00435             }
00436         }
00437     }
00438     return false;
00439 }
00440 
00441 void KHTMLToolTip::maybeTip(const QPoint& p)
00442 {
00443     DOM::NodeImpl *node = m_viewprivate->underMouseNonShared;
00444     QRect region;
00445     while ( node ) {
00446         if ( node->isElementNode() ) {
00447             DOM::ElementImpl *e = static_cast<DOM::ElementImpl*>( node );
00448             QRect r;
00449             QString s;
00450             bool found = false;
00451             // for images, check if it is part of a client-side image map,
00452             // and query the <area>s' title attributes, too
00453             if (e->id() == ID_IMG && !e->getAttribute( ATTR_USEMAP ).isEmpty()) {
00454                 found = findImageMapRect(static_cast<HTMLImageElementImpl *>(e),
00455                             m_view->viewportToContents(QPoint(0, 0)), p, r, s);
00456             }
00457             if (!found) {
00458                 s = e->getAttribute( ATTR_TITLE ).string();
00459                 r = node->getRect();
00460             }
00461             region |= QRect( m_view->contentsToViewport( r.topLeft() ), r.size() );
00462             if ( !s.isEmpty() ) {
00463                 tip( region, QStyleSheet::convertFromPlainText( s, QStyleSheetItem::WhiteSpaceNormal ) );
00464                 break;
00465             }
00466         }
00467         node = node->parentNode();
00468     }
00469 }
00470 #endif
00471 
00472 KHTMLView::KHTMLView( KHTMLPart *part, QWidget *parent, const char *name)
00473     : QScrollView( parent, name, WResizeNoErase | WRepaintNoErase )
00474 {
00475     m_medium = "screen";
00476 
00477     m_part = part;
00478     d = new KHTMLViewPrivate;
00479     QScrollView::setVScrollBarMode(d->vmode);
00480     QScrollView::setHScrollBarMode(d->hmode);
00481     connect(kapp, SIGNAL(kdisplayPaletteChanged()), this, SLOT(slotPaletteChanged()));
00482     connect(this, SIGNAL(contentsMoving(int, int)), this, SLOT(slotScrollBarMoved()));
00483 
00484     // initialize QScrollView
00485     enableClipper(true);
00486     // hack to get unclipped painting on the viewport.
00487     static_cast<KHTMLView *>(static_cast<QWidget *>(viewport()))->setWFlags(WPaintUnclipped);
00488 
00489     setResizePolicy(Manual);
00490     viewport()->setMouseTracking(true);
00491     viewport()->setBackgroundMode(NoBackground);
00492 
00493     KImageIO::registerFormats();
00494 
00495 #ifndef QT_NO_TOOLTIP
00496     d->tooltip = new KHTMLToolTip( this, d );
00497 #endif
00498 
00499 #ifndef KHTML_NO_TYPE_AHEAD_FIND
00500     connect(&d->timer, SIGNAL(timeout()), this, SLOT(findTimeout()));
00501 #endif // KHTML_NO_TYPE_AHEAD_FIND
00502 
00503     init();
00504 
00505     viewport()->show();
00506 }
00507 
00508 KHTMLView::~KHTMLView()
00509 {
00510     closeChildDialogs();
00511     if (m_part)
00512     {
00513         //WABA: Is this Ok? Do I need to deref it as well?
00514         //Does this need to be done somewhere else?
00515         DOM::DocumentImpl *doc = m_part->xmlDocImpl();
00516         if (doc)
00517             doc->detach();
00518     }
00519     delete d; d = 0;
00520 }
00521 
00522 void KHTMLView::init()
00523 {
00524     if(!d->paintBuffer) d->paintBuffer = new QPixmap(PAINT_BUFFER_HEIGHT, PAINT_BUFFER_HEIGHT);
00525     if(!d->vertPaintBuffer)
00526         d->vertPaintBuffer = new QPixmap(10, PAINT_BUFFER_HEIGHT);
00527     if(!d->tp) d->tp = new QPainter();
00528 
00529     setFocusPolicy(QWidget::StrongFocus);
00530     viewport()->setFocusProxy(this);
00531 
00532     _marginWidth = -1; // undefined
00533     _marginHeight = -1;
00534     _width = 0;
00535     _height = 0;
00536 
00537     installEventFilter(this);
00538 
00539     setAcceptDrops(true);
00540     QSize s = viewportSize(4095, 4095);
00541     resizeContents(s.width(), s.height());
00542 }
00543 
00544 void KHTMLView::clear()
00545 {
00546     // work around QScrollview's unbelievable bugginess
00547     setStaticBackground(true);
00548 #ifndef KHTML_NO_CARET
00549     if (!m_part->isCaretMode() && !m_part->isEditable()) caretOff();
00550 #endif
00551 
00552 #ifndef KHTML_NO_TYPE_AHEAD_FIND
00553     if( d->typeAheadActivated )
00554         findTimeout();
00555 #endif
00556     if (d->accessKeysEnabled && d->accessKeysActivated)
00557         accessKeysTimeout();
00558     viewport()->unsetCursor();
00559     if ( d->cursor_icon_widget )
00560         d->cursor_icon_widget->hide();
00561     d->reset();
00562     killTimers();
00563     emit cleared();
00564 
00565     QScrollView::setHScrollBarMode(d->hmode);
00566     QScrollView::setVScrollBarMode(d->vmode);
00567     verticalScrollBar()->setEnabled( false );
00568     horizontalScrollBar()->setEnabled( false );
00569 }
00570 
00571 void KHTMLView::hideEvent(QHideEvent* e)
00572 {
00573     QScrollView::hideEvent(e);
00574 }
00575 
00576 void KHTMLView::showEvent(QShowEvent* e)
00577 {
00578     QScrollView::showEvent(e);
00579 }
00580 
00581 void KHTMLView::resizeEvent (QResizeEvent* e)
00582 {
00583     int dw = e->oldSize().width() - e->size().width();
00584     int dh = e->oldSize().height() - e->size().height();
00585 
00586     // if we are shrinking the view, don't allow the content to overflow
00587     // before the layout occurs - we don't know if we need scrollbars yet
00588     dw = dw>0 ? kMax(0, contentsWidth()-dw) : contentsWidth();
00589     dh = dh>0 ? kMax(0, contentsHeight()-dh) : contentsHeight();
00590 
00591     resizeContents(dw, dh);
00592 
00593     QScrollView::resizeEvent(e);
00594 
00595     if ( m_part && m_part->xmlDocImpl() )
00596         m_part->xmlDocImpl()->dispatchWindowEvent( EventImpl::RESIZE_EVENT, false, false );
00597 }
00598 
00599 void KHTMLView::viewportResizeEvent (QResizeEvent* e)
00600 {
00601     QScrollView::viewportResizeEvent(e);
00602 
00603     //int w = visibleWidth();
00604     //int h = visibleHeight();
00605 
00606     if (d->layoutSchedulingEnabled)
00607         layout();
00608 #ifndef KHTML_NO_CARET
00609     else {
00610         hideCaret();
00611         recalcAndStoreCaretPos();
00612     showCaret();
00613     }/*end if*/
00614 #endif
00615 
00616     KApplication::sendPostedEvents(viewport(), QEvent::Paint);
00617 }
00618 
00619 // this is to get rid of a compiler virtual overload mismatch warning. do not remove
00620 void KHTMLView::drawContents( QPainter*)
00621 {
00622 }
00623 
00624 void KHTMLView::drawContents( QPainter *p, int ex, int ey, int ew, int eh )
00625 {
00626 #ifdef DEBUG_PIXEL
00627 
00628     if ( d->timer.elapsed() > 5000 ) {
00629         qDebug( "drawed %d pixels in %d repaints the last %d milliseconds",
00630                 d->pixelbooth, d->repaintbooth,  d->timer.elapsed() );
00631         d->timer.restart();
00632         d->pixelbooth = 0;
00633         d->repaintbooth = 0;
00634     }
00635     d->pixelbooth += ew*eh;
00636     d->repaintbooth++;
00637 #endif
00638 
00639     //kdDebug( 6000 ) << "drawContents this="<< this <<" x=" << ex << ",y=" << ey << ",w=" << ew << ",h=" << eh << endl;
00640     if(!m_part || !m_part->xmlDocImpl() || !m_part->xmlDocImpl()->renderer()) {
00641         p->fillRect(ex, ey, ew, eh, palette().active().brush(QColorGroup::Base));
00642         return;
00643     } else if ( d->complete && static_cast<RenderCanvas*>(m_part->xmlDocImpl()->renderer())->needsLayout() ) {
00644         // an external update request happens while we have a layout scheduled
00645         unscheduleRelayout();
00646         layout();
00647     }
00648 
00649     if (d->painting) {
00650         kdDebug( 6000 ) << "WARNING: drawContents reentered! " << endl;
00651         return;
00652     }
00653     d->painting = true;
00654 
00655     QPoint pt = contentsToViewport(QPoint(ex, ey));
00656     QRegion cr = QRect(pt.x(), pt.y(), ew, eh);
00657 
00658     // kdDebug(6000) << "clip rect: " << QRect(pt.x(), pt.y(), ew, eh) << endl;
00659     for (QPtrDictIterator<QWidget> it(d->visibleWidgets); it.current(); ++it) {
00660     QWidget *w = it.current();
00661     RenderWidget* rw = static_cast<RenderWidget*>( it.currentKey() );
00662     if (w && rw && !rw->isKHTMLWidget()) { 
00663             int x, y;
00664             rw->absolutePosition(x, y);
00665             contentsToViewport(x, y, x, y);
00666             int pbx = rw->borderLeft()+rw->paddingLeft();
00667             int pby = rw->borderTop()+rw->paddingTop();
00668             QRect g = QRect(x+pbx, y+pby, 
00669                             rw->width()-pbx-rw->borderRight()-rw->paddingRight(), 
00670                             rw->height()-pby-rw->borderBottom()-rw->paddingBottom());
00671             if ( !rw->isFrame() && ((g.top() > pt.y()+eh) || (g.bottom() <= pt.y()) ||
00672                                     (g.right() <= pt.x()) || (g.left() > pt.x()+ew) ))
00673                 continue;
00674             RenderLayer* rl = rw->needsMask() ? rw->enclosingStackingContext() : 0;
00675             QRegion mask = rl ? rl->getMask() : QRegion();
00676             if (!mask.isNull()) {
00677                 QPoint o(0,0);
00678                 o = contentsToViewport(o);
00679                 mask.translate(o.x(),o.y());
00680                 mask = mask.intersect( QRect(g.x(),g.y(),g.width(),g.height()) );
00681                 cr -= mask;
00682             } else {
00683                 cr -= g;
00684             }
00685         }
00686     }
00687 
00688 #if 0
00689     // this is commonly the case with framesets. we still do
00690     // want to paint them, otherwise the widgets don't get placed.
00691     if (cr.isEmpty()) {
00692         d->painting = false;
00693     return;
00694     }
00695 #endif
00696 
00697 #ifndef DEBUG_NO_PAINT_BUFFER
00698     p->setClipRegion(cr);
00699 
00700     if (eh > PAINT_BUFFER_HEIGHT && ew <= 10) {
00701         if ( d->vertPaintBuffer->height() < visibleHeight() )
00702             d->vertPaintBuffer->resize(10, visibleHeight());
00703         d->tp->begin(d->vertPaintBuffer);
00704         d->tp->translate(-ex, -ey);
00705         d->tp->fillRect(ex, ey, ew, eh, palette().active().brush(QColorGroup::Base));
00706         m_part->xmlDocImpl()->renderer()->layer()->paint(d->tp, QRect(ex, ey, ew, eh));
00707         d->tp->end();
00708     p->drawPixmap(ex, ey, *d->vertPaintBuffer, 0, 0, ew, eh);
00709     }
00710     else {
00711         if ( d->paintBuffer->width() < visibleWidth() )
00712             d->paintBuffer->resize(visibleWidth(),PAINT_BUFFER_HEIGHT);
00713 
00714         int py=0;
00715         while (py < eh) {
00716             int ph = eh-py < PAINT_BUFFER_HEIGHT ? eh-py : PAINT_BUFFER_HEIGHT;
00717             d->tp->begin(d->paintBuffer);
00718             d->tp->translate(-ex, -ey-py);
00719             d->tp->fillRect(ex, ey+py, ew, ph, palette().active().brush(QColorGroup::Base));
00720             m_part->xmlDocImpl()->renderer()->layer()->paint(d->tp, QRect(ex, ey+py, ew, ph));
00721             d->tp->end();
00722 
00723         p->drawPixmap(ex, ey+py, *d->paintBuffer, 0, 0, ew, ph);
00724             py += PAINT_BUFFER_HEIGHT;
00725         }
00726     }
00727 #else // !DEBUG_NO_PAINT_BUFFER
00728 static int cnt=0;
00729     ex = contentsX(); ey = contentsY();
00730     ew = visibleWidth(); eh = visibleHeight();
00731     QRect pr(ex,ey,ew,eh);
00732     kdDebug() << "[" << ++cnt << "]" << " clip region: " << pr << endl;
00733 //  p->setClipRegion(QRect(0,0,ew,eh));
00734 //        p->translate(-ex, -ey);
00735         p->fillRect(ex, ey, ew, eh, palette().active().brush(QColorGroup::Base));
00736         m_part->xmlDocImpl()->renderer()->layer()->paint(p, pr);
00737 #endif // DEBUG_NO_PAINT_BUFFER
00738 
00739 #ifndef KHTML_NO_CARET
00740     if (d->m_caretViewContext && d->m_caretViewContext->visible) {
00741         QRect pos(d->m_caretViewContext->x, d->m_caretViewContext->y,
00742         d->m_caretViewContext->width, d->m_caretViewContext->height);
00743         if (pos.intersects(QRect(ex, ey, ew, eh))) {
00744             p->setRasterOp(XorROP);
00745         p->setPen(white);
00746         if (pos.width() == 1)
00747               p->drawLine(pos.topLeft(), pos.bottomRight());
00748         else {
00749           p->fillRect(pos, white);
00750         }/*end if*/
00751     }/*end if*/
00752     }/*end if*/
00753 #endif // KHTML_NO_CARET
00754 
00755 //    p->setPen(QPen(magenta,0,DashDotDotLine));
00756 //    p->drawRect(dbg_paint_rect);
00757 
00758     khtml::DrawContentsEvent event( p, ex, ey, ew, eh );
00759     QApplication::sendEvent( m_part, &event );
00760 
00761     d->painting = false;
00762 }
00763 
00764 void KHTMLView::setMarginWidth(int w)
00765 {
00766     // make it update the rendering area when set
00767     _marginWidth = w;
00768 }
00769 
00770 void KHTMLView::setMarginHeight(int h)
00771 {
00772     // make it update the rendering area when set
00773     _marginHeight = h;
00774 }
00775 
00776 void KHTMLView::layout()
00777 {
00778     if( m_part && m_part->xmlDocImpl() ) {
00779         DOM::DocumentImpl *document = m_part->xmlDocImpl();
00780 
00781         khtml::RenderCanvas* canvas = static_cast<khtml::RenderCanvas *>(document->renderer());
00782         if ( !canvas ) return;
00783 
00784         d->layoutSchedulingEnabled=false;
00785 
00786         // the reference object for the overflow property on canvas 
00787         RenderObject * ref = 0;
00788         RenderObject* root = document->documentElement() ? document->documentElement()->renderer() : 0;
00789 
00790         if (document->isHTMLDocument()) {
00791              NodeImpl *body = static_cast<HTMLDocumentImpl*>(document)->body();
00792              if(body && body->renderer() && body->id() == ID_FRAMESET) {
00793                  QScrollView::setVScrollBarMode(AlwaysOff);
00794                  QScrollView::setHScrollBarMode(AlwaysOff);
00795                  body->renderer()->setNeedsLayout(true);
00796 //                  if (d->tooltip) {
00797 //                      delete d->tooltip;
00798 //                      d->tooltip = 0;
00799 //                  }
00800              }
00801              else {
00802                  if (!d->tooltip)
00803                      d->tooltip = new KHTMLToolTip( this, d );
00804                  // only apply body's overflow to canvas if root as a visible overflow
00805                  if (root) 
00806                      ref = (!body || root->style()->hidesOverflow()) ? root : body->renderer();
00807              }
00808         } else {
00809             ref = root;
00810         }
00811         
00812         if (ref) {
00813             if( ref->style()->overflow() == OHIDDEN ) {
00814                 if (d->vmode == Auto) QScrollView::setVScrollBarMode(AlwaysOff);
00815                 if (d->hmode == Auto) QScrollView::setHScrollBarMode(AlwaysOff);
00816             } else {
00817                 if (QScrollView::vScrollBarMode() == AlwaysOff) QScrollView::setVScrollBarMode(d->vmode);
00818                 if (QScrollView::hScrollBarMode() == AlwaysOff) QScrollView::setHScrollBarMode(d->hmode);
00819             }            
00820         }
00821         d->needsFullRepaint = d->firstRelayout;
00822         if (_height !=  visibleHeight() || _width != visibleWidth()) {;
00823             d->needsFullRepaint = true;
00824             _height = visibleHeight();
00825             _width = visibleWidth();
00826         }
00827         //QTime qt;
00828         //qt.start();
00829         canvas->layout();
00830 
00831         emit finishedLayout();
00832         if (d->firstRelayout) {
00833             // make sure firstRelayout is set to false now in case this layout
00834             // wasn't scheduled
00835             d->firstRelayout = false;
00836             verticalScrollBar()->setEnabled( true );
00837             horizontalScrollBar()->setEnabled( true );
00838         }
00839 #if 0
00840     ElementImpl *listitem = m_part->xmlDocImpl()->getElementById("__test_element__");
00841     if (listitem) kdDebug(6000) << "after layout, before repaint" << endl;
00842     if (listitem) dumpLineBoxes(static_cast<RenderFlow *>(listitem->renderer()));
00843 #endif
00844 #ifndef KHTML_NO_CARET
00845         hideCaret();
00846         if ((m_part->isCaretMode() || m_part->isEditable())
00847             && !d->complete && d->m_caretViewContext
00848                 && !d->m_caretViewContext->caretMoved) {
00849             initCaret();
00850         } else {
00851         recalcAndStoreCaretPos();
00852         showCaret();
00853         }/*end if*/
00854 #endif
00855         if (d->accessKeysEnabled && d->accessKeysActivated) {
00856             emit hideAccessKeys();
00857             displayAccessKeys();
00858         }
00859         //kdDebug( 6000 ) << "TIME: layout() dt=" << qt.elapsed() << endl;
00860     }
00861     else
00862        _width = visibleWidth();
00863 
00864     killTimer(d->layoutTimerId);
00865     d->layoutTimerId = 0;
00866     d->layoutSchedulingEnabled=true;
00867 }
00868 
00869 void KHTMLView::closeChildDialogs()
00870 {
00871     QObjectList *dlgs = queryList("QDialog");
00872     for (QObject *dlg = dlgs->first(); dlg; dlg = dlgs->next())
00873     {
00874         KDialogBase* dlgbase = dynamic_cast<KDialogBase *>( dlg );
00875         if ( dlgbase ) {
00876             if ( dlgbase->testWFlags( WShowModal ) ) {
00877                 kdDebug(6000) << "closeChildDialogs: closing dialog " << dlgbase << endl;
00878                 // close() ends up calling QButton::animateClick, which isn't immediate
00879                 // we need something the exits the event loop immediately (#49068)
00880                 dlgbase->cancel();
00881             }
00882         }
00883         else
00884         {
00885             kdWarning() << "closeChildDialogs: not a KDialogBase! Don't use QDialogs in KDE! " << static_cast<QWidget*>(dlg) << endl;
00886             static_cast<QWidget*>(dlg)->hide();
00887         }
00888     }
00889     delete dlgs;
00890     d->m_dialogsAllowed = false;
00891 }
00892 
00893 bool KHTMLView::dialogsAllowed() {
00894     bool allowed = d->m_dialogsAllowed;
00895     KHTMLPart* p = m_part->parentPart();
00896     if (p && p->view())
00897         allowed &= p->view()->dialogsAllowed();
00898     return allowed;
00899 }
00900 
00901 void KHTMLView::closeEvent( QCloseEvent* ev )
00902 {
00903     closeChildDialogs();
00904     QScrollView::closeEvent( ev );
00905 }
00906 
00907 //
00908 // Event Handling
00909 //
00911 
00912 void KHTMLView::viewportMousePressEvent( QMouseEvent *_mouse )
00913 {
00914     if (!m_part->xmlDocImpl()) return;
00915     if (d->possibleTripleClick && ( _mouse->button() & MouseButtonMask ) == LeftButton)
00916     {
00917         viewportMouseDoubleClickEvent( _mouse ); // it handles triple clicks too
00918         return;
00919     }
00920 
00921     int xm, ym;
00922     viewportToContents(_mouse->x(), _mouse->y(), xm, ym);
00923     //kdDebug( 6000 ) << "mousePressEvent: viewport=("<<_mouse->x()<<"/"<<_mouse->y()<<"), contents=(" << xm << "/" << ym << ")\n";
00924 
00925     d->isDoubleClick = false;
00926 
00927     DOM::NodeImpl::MouseEvent mev( _mouse->stateAfter(), DOM::NodeImpl::MousePress );
00928     m_part->xmlDocImpl()->prepareMouseEvent( false, xm, ym, &mev );
00929 
00930     //kdDebug(6000) << "innerNode="<<mev.innerNode.nodeName().string()<<endl;
00931 
00932     if ( (_mouse->button() == MidButton) &&
00933           !m_part->d->m_bOpenMiddleClick && !d->m_mouseScrollTimer &&
00934           mev.url.isNull() && (mev.innerNode.elementId() != ID_INPUT) ) {
00935         QPoint point = mapFromGlobal( _mouse->globalPos() );
00936 
00937         d->m_mouseScroll_byX = 0;
00938         d->m_mouseScroll_byY = 0;
00939 
00940         d->m_mouseScrollTimer = new QTimer( this );
00941         connect( d->m_mouseScrollTimer, SIGNAL(timeout()), this, SLOT(slotMouseScrollTimer()) );
00942 
00943         if ( !d->m_mouseScrollIndicator ) {
00944             QPixmap pixmap, icon;
00945             pixmap.resize( 48, 48 );
00946             pixmap.fill( QColor( qRgba( 127, 127, 127, 127 ) ) );
00947 
00948             QPainter p( &pixmap );
00949             icon = KGlobal::iconLoader()->loadIcon( "1uparrow", KIcon::Small );
00950             p.drawPixmap( 16, 0, icon );
00951             icon = KGlobal::iconLoader()->loadIcon( "1leftarrow", KIcon::Small );
00952             p.drawPixmap( 0, 16, icon );
00953             icon = KGlobal::iconLoader()->loadIcon( "1downarrow", KIcon::Small );
00954             p.drawPixmap( 16, 32,icon  );
00955             icon = KGlobal::iconLoader()->loadIcon( "1rightarrow", KIcon::Small );
00956             p.drawPixmap( 32, 16, icon );
00957             p.drawEllipse( 23, 23, 2, 2 );
00958 
00959             d->m_mouseScrollIndicator = new QWidget( this, 0 );
00960             d->m_mouseScrollIndicator->setFixedSize( 48, 48 );
00961             d->m_mouseScrollIndicator->setPaletteBackgroundPixmap( pixmap );
00962         }
00963         d->m_mouseScrollIndicator->move( point.x()-24, point.y()-24 );
00964 
00965         bool hasHorBar = visibleWidth() < contentsWidth();
00966         bool hasVerBar = visibleHeight() < contentsHeight();
00967 
00968         KConfig *config = KGlobal::config();
00969         KConfigGroupSaver saver( config, "HTML Settings" );
00970         if ( config->readBoolEntry( "ShowMouseScrollIndicator", true ) ) {
00971             d->m_mouseScrollIndicator->show();
00972             d->m_mouseScrollIndicator->unsetCursor();
00973 
00974             QBitmap mask = d->m_mouseScrollIndicator->paletteBackgroundPixmap()->createHeuristicMask( true );
00975 
00976         if ( hasHorBar && !hasVerBar ) {
00977                 QBitmap bm( 16, 16, true );
00978                 bitBlt( &mask, 16,  0, &bm, 0, 0, -1, -1 );
00979                 bitBlt( &mask, 16, 32, &bm, 0, 0, -1, -1 );
00980                 d->m_mouseScrollIndicator->setCursor( KCursor::SizeHorCursor );
00981             }
00982             else if ( !hasHorBar && hasVerBar ) {
00983                 QBitmap bm( 16, 16, true );
00984                 bitBlt( &mask,  0, 16, &bm, 0, 0, -1, -1 );
00985                 bitBlt( &mask, 32, 16, &bm, 0, 0, -1, -1 );
00986                 d->m_mouseScrollIndicator->setCursor( KCursor::SizeVerCursor );
00987             }
00988             else
00989                 d->m_mouseScrollIndicator->setCursor( KCursor::SizeAllCursor );
00990 
00991             d->m_mouseScrollIndicator->setMask( mask );
00992         }
00993         else {
00994             if ( hasHorBar && !hasVerBar )
00995                 viewport()->setCursor( KCursor::SizeHorCursor );
00996             else if ( !hasHorBar && hasVerBar )
00997                 viewport()->setCursor( KCursor::SizeVerCursor );
00998             else
00999                 viewport()->setCursor( KCursor::SizeAllCursor );
01000         }
01001 
01002         return;
01003     }
01004     else if ( d->m_mouseScrollTimer ) {
01005         delete d->m_mouseScrollTimer;
01006         d->m_mouseScrollTimer = 0;
01007 
01008         if ( d->m_mouseScrollIndicator )
01009             d->m_mouseScrollIndicator->hide();
01010     }
01011 
01012     d->clickCount = 1;
01013     d->clickX = xm;
01014     d->clickY = ym;
01015 
01016     bool swallowEvent = dispatchMouseEvent(EventImpl::MOUSEDOWN_EVENT,mev.innerNode.handle(),mev.innerNonSharedNode.handle(),true,
01017                                            d->clickCount,_mouse,true,DOM::NodeImpl::MousePress);
01018 
01019     khtml::RenderObject* r = mev.innerNode.handle() ? mev.innerNode.handle()->renderer() : 0;
01020     if (r && r->isWidget())
01021     _mouse->ignore();
01022 
01023     if (!swallowEvent) {
01024     emit m_part->nodeActivated(mev.innerNode);
01025 
01026     khtml::MousePressEvent event( _mouse, xm, ym, mev.url, mev.target, mev.innerNode );
01027         QApplication::sendEvent( m_part, &event );
01028         // we might be deleted after this
01029     }
01030 }
01031 
01032 void KHTMLView::viewportMouseDoubleClickEvent( QMouseEvent *_mouse )
01033 {
01034     if(!m_part->xmlDocImpl()) return;
01035 
01036     int xm, ym;
01037     viewportToContents(_mouse->x(), _mouse->y(), xm, ym);
01038 
01039     kdDebug( 6000 ) << "mouseDblClickEvent: x=" << xm << ", y=" << ym << endl;
01040 
01041     d->isDoubleClick = true;
01042 
01043     DOM::NodeImpl::MouseEvent mev( _mouse->stateAfter(), DOM::NodeImpl::MouseDblClick );
01044     m_part->xmlDocImpl()->prepareMouseEvent( false, xm, ym, &mev );
01045 
01046     // We do the same thing as viewportMousePressEvent() here, since the DOM does not treat
01047     // single and double-click events as separate (only the detail, i.e. number of clicks differs)
01048     if (d->clickCount > 0 &&
01049         QPoint(d->clickX-xm,d->clickY-ym).manhattanLength() <= QApplication::startDragDistance())
01050     d->clickCount++;
01051     else { // shouldn't happen, if Qt has the same criterias for double clicks.
01052     d->clickCount = 1;
01053     d->clickX = xm;
01054     d->clickY = ym;
01055     }
01056     bool swallowEvent = dispatchMouseEvent(EventImpl::MOUSEDOWN_EVENT,mev.innerNode.handle(),mev.innerNonSharedNode.handle(),true,
01057                                            d->clickCount,_mouse,true,DOM::NodeImpl::MouseDblClick);
01058 
01059     khtml::RenderObject* r = mev.innerNode.handle() ? mev.innerNode.handle()->renderer() : 0;
01060     if (r && r->isWidget())
01061     _mouse->ignore();
01062 
01063     if (!swallowEvent) {
01064     khtml::MouseDoubleClickEvent event( _mouse, xm, ym, mev.url, mev.target, mev.innerNode, d->clickCount );
01065     QApplication::sendEvent( m_part, &event );
01066     }
01067 
01068     d->possibleTripleClick=true;
01069     QTimer::singleShot(QApplication::doubleClickInterval(),this,SLOT(tripleClickTimeout()));
01070 }
01071 
01072 void KHTMLView::tripleClickTimeout()
01073 {
01074     d->possibleTripleClick = false;
01075     d->clickCount = 0;
01076 }
01077 
01078 static inline void forwardPeripheralEvent(khtml::RenderWidget* r, QMouseEvent* me, int x, int y)
01079 {
01080     int absx = 0;
01081     int absy = 0;
01082     r->absolutePosition(absx, absy);
01083     QPoint p(x-absx, y-absy);
01084     QMouseEvent fw(me->type(), p, me->button(), me->state());
01085     QWidget* w = r->widget();
01086     QScrollView* sc = ::qt_cast<QScrollView*>(w);
01087     if (sc && !::qt_cast<QListBox*>(w))
01088         static_cast<khtml::RenderWidget::ScrollViewEventPropagator*>(sc)->sendEvent(&fw);
01089     else if(w)
01090         static_cast<khtml::RenderWidget::EventPropagator*>(w)->sendEvent(&fw);
01091 }
01092 
01093 void KHTMLView::viewportMouseMoveEvent( QMouseEvent * _mouse )
01094 {
01095     if ( d->m_mouseScrollTimer ) {
01096         QPoint point = mapFromGlobal( _mouse->globalPos() );
01097 
01098         int deltaX = point.x() - d->m_mouseScrollIndicator->x() - 24;
01099         int deltaY = point.y() - d->m_mouseScrollIndicator->y() - 24;
01100 
01101         (deltaX > 0) ? d->m_mouseScroll_byX = 1 : d->m_mouseScroll_byX = -1;
01102         (deltaY > 0) ? d->m_mouseScroll_byY = 1 : d->m_mouseScroll_byY = -1;
01103 
01104         double adX = QABS(deltaX)/30.0;
01105         double adY = QABS(deltaY)/30.0;
01106 
01107         d->m_mouseScroll_byX = kMax(kMin(d->m_mouseScroll_byX * int(adX*adX), SHRT_MAX), SHRT_MIN);
01108         d->m_mouseScroll_byY = kMax(kMin(d->m_mouseScroll_byY * int(adY*adY), SHRT_MAX), SHRT_MIN);
01109 
01110         if (d->m_mouseScroll_byX == 0 && d->m_mouseScroll_byY == 0) {
01111             d->m_mouseScrollTimer->stop();
01112         }
01113         else if (!d->m_mouseScrollTimer->isActive()) {
01114             d->m_mouseScrollTimer->changeInterval( 20 );
01115         }
01116     }
01117 
01118     if(!m_part->xmlDocImpl()) return;
01119 
01120     int xm, ym;
01121     viewportToContents(_mouse->x(), _mouse->y(), xm, ym);
01122 
01123     DOM::NodeImpl::MouseEvent mev( _mouse->stateAfter(), DOM::NodeImpl::MouseMove );
01124     // Do not modify :hover/:active state while mouse is pressed.
01125     m_part->xmlDocImpl()->prepareMouseEvent( _mouse->state() & Qt::MouseButtonMask /*readonly ?*/, xm, ym, &mev );
01126 
01127 //     kdDebug(6000) << "mouse move: " << _mouse->pos()
01128 //        << " button " << _mouse->button()
01129 //        << " state " << _mouse->state() << endl;
01130 
01131     bool swallowEvent = dispatchMouseEvent(EventImpl::MOUSEMOVE_EVENT,mev.innerNode.handle(),mev.innerNonSharedNode.handle(),false,
01132                                            0,_mouse,true,DOM::NodeImpl::MouseMove);
01133 
01134     if (d->clickCount > 0 &&
01135         QPoint(d->clickX-xm,d->clickY-ym).manhattanLength() > QApplication::startDragDistance()) {
01136     d->clickCount = 0;  // moving the mouse outside the threshold invalidates the click
01137     }
01138 
01139     // execute the scheduled script. This is to make sure the mouseover events come after the mouseout events
01140     m_part->executeScheduledScript();
01141 
01142     DOM::NodeImpl* fn = m_part->xmlDocImpl()->focusNode();
01143     if (fn && fn != mev.innerNode.handle() &&
01144         fn->renderer() && fn->renderer()->isWidget()) {
01145         forwardPeripheralEvent(static_cast<khtml::RenderWidget*>(fn->renderer()), _mouse, xm, ym);
01146     }
01147 
01148     khtml::RenderObject* r = mev.innerNode.handle() ? mev.innerNode.handle()->renderer() : 0;
01149     khtml::RenderStyle* style = (r && r->style()) ? r->style() : 0;
01150     QCursor c;
01151     bool mailtoCursor = false;
01152     switch ( style ? style->cursor() : CURSOR_AUTO) {
01153     case CURSOR_AUTO:
01154         if ( r && r->isText() )
01155             c = KCursor::ibeamCursor();
01156         if ( mev.url.length() && m_part->settings()->changeCursor() ) {
01157             c = m_part->urlCursor();
01158         if (mev.url.string().startsWith("mailto:") && mev.url.string().find('@')>0)
01159                 mailtoCursor = true;
01160         }
01161 
01162         if (r && r->isFrameSet() && !static_cast<RenderFrameSet*>(r)->noResize())
01163             c = QCursor(static_cast<RenderFrameSet*>(r)->cursorShape());
01164 
01165         break;
01166     case CURSOR_CROSS:
01167         c = KCursor::crossCursor();
01168         break;
01169     case CURSOR_POINTER:
01170         c = m_part->urlCursor();
01171     if (mev.url.string().startsWith("mailto:") && mev.url.string().find('@')>0)
01172             mailtoCursor = true;
01173         break;
01174     case CURSOR_PROGRESS:
01175         c = KCursor::workingCursor();
01176         break;
01177     case CURSOR_MOVE:
01178         c = KCursor::sizeAllCursor();
01179         break;
01180     case CURSOR_E_RESIZE:
01181     case CURSOR_W_RESIZE:
01182         c = KCursor::sizeHorCursor();
01183         break;
01184     case CURSOR_N_RESIZE:
01185     case CURSOR_S_RESIZE:
01186         c = KCursor::sizeVerCursor();
01187         break;
01188     case CURSOR_NE_RESIZE:
01189     case CURSOR_SW_RESIZE:
01190         c = KCursor::sizeBDiagCursor();
01191         break;
01192     case CURSOR_NW_RESIZE:
01193     case CURSOR_SE_RESIZE:
01194         c = KCursor::sizeFDiagCursor();
01195         break;
01196     case CURSOR_TEXT:
01197         c = KCursor::ibeamCursor();
01198         break;
01199     case CURSOR_WAIT:
01200         c = KCursor::waitCursor();
01201         break;
01202     case CURSOR_HELP:
01203         c = KCursor::whatsThisCursor();
01204         break;
01205     case CURSOR_DEFAULT:
01206         break;
01207     }
01208 
01209     if ( viewport()->cursor().handle() != c.handle() ) {
01210         if( c.handle() == KCursor::arrowCursor().handle()) {
01211             for (KHTMLPart* p = m_part; p; p = p->parentPart())
01212                 p->view()->viewport()->unsetCursor();
01213         }
01214         else {
01215             viewport()->setCursor( c );
01216         }
01217     }
01218 
01219     if ( mailtoCursor && isVisible() && hasFocus() ) {
01220 #ifdef Q_WS_X11
01221         if( !d->cursor_icon_widget ) {
01222             QPixmap icon_pixmap = KGlobal::iconLoader()->loadIcon( "mail_generic", KIcon::Small, 0, KIcon::DefaultState, 0, true );
01223             d->cursor_icon_widget = new QWidget( NULL, NULL, WX11BypassWM );
01224             XSetWindowAttributes attr;
01225             attr.save_under = True;
01226             XChangeWindowAttributes( qt_xdisplay(), d->cursor_icon_widget->winId(), CWSaveUnder, &attr );
01227             d->cursor_icon_widget->resize( icon_pixmap.width(), icon_pixmap.height());
01228             if( icon_pixmap.mask() )
01229                 d->cursor_icon_widget->setMask( *icon_pixmap.mask());
01230             else
01231                 d->cursor_icon_widget->clearMask();
01232             d->cursor_icon_widget->setBackgroundPixmap( icon_pixmap );
01233             d->cursor_icon_widget->erase();
01234         }
01235         QPoint c_pos = QCursor::pos();
01236         d->cursor_icon_widget->move( c_pos.x() + 15, c_pos.y() + 15 );
01237         XRaiseWindow( qt_xdisplay(), d->cursor_icon_widget->winId());
01238         QApplication::flushX();
01239         d->cursor_icon_widget->show();
01240 #endif
01241     }
01242     else if ( d->cursor_icon_widget )
01243         d->cursor_icon_widget->hide();
01244 
01245     if (r && r->isWidget()) {
01246     _mouse->ignore();
01247     }
01248 
01249 
01250     d->prevMouseX = xm;
01251     d->prevMouseY = ym;
01252 
01253     if (!swallowEvent) {
01254         khtml::MouseMoveEvent event( _mouse, xm, ym, mev.url, mev.target, mev.innerNode );
01255         QApplication::sendEvent( m_part, &event );
01256     }
01257 }
01258 
01259 void KHTMLView::viewportMouseReleaseEvent( QMouseEvent * _mouse )
01260 {
01261     bool swallowEvent = false;
01262     int xm, ym;
01263     viewportToContents(_mouse->x(), _mouse->y(), xm, ym);
01264     DOM::NodeImpl::MouseEvent mev( _mouse->stateAfter(), DOM::NodeImpl::MouseRelease );
01265 
01266     if ( m_part->xmlDocImpl() )
01267     {
01268         m_part->xmlDocImpl()->prepareMouseEvent( false, xm, ym, &mev );
01269 
01270         swallowEvent = dispatchMouseEvent(EventImpl::MOUSEUP_EVENT,mev.innerNode.handle(),mev.innerNonSharedNode.handle(),true,
01271                                           d->clickCount,_mouse,false,DOM::NodeImpl::MouseRelease);
01272 
01273         if (d->clickCount > 0 &&
01274             QPoint(d->clickX-xm,d->clickY-ym).manhattanLength() <= QApplication::startDragDistance()) {
01275             QMouseEvent me(d->isDoubleClick ? QEvent::MouseButtonDblClick : QEvent::MouseButtonRelease,
01276                            _mouse->pos(), _mouse->button(), _mouse->state());
01277             dispatchMouseEvent(EventImpl::CLICK_EVENT, mev.innerNode.handle(),mev.innerNonSharedNode.handle(),true,
01278                                d->clickCount, &me, true, DOM::NodeImpl::MouseRelease);
01279         }
01280 
01281         DOM::NodeImpl* fn = m_part->xmlDocImpl()->focusNode();
01282         if (fn && fn != mev.innerNode.handle() &&
01283             fn->renderer() && fn->renderer()->isWidget() &&
01284             _mouse->button() != MidButton) {
01285             forwardPeripheralEvent(static_cast<khtml::RenderWidget*>(fn->renderer()), _mouse, xm, ym);
01286         }
01287 
01288         khtml::RenderObject* r = mev.innerNode.handle() ? mev.innerNode.handle()->renderer() : 0;
01289         if (r && r->isWidget())
01290             _mouse->ignore();
01291     }
01292 
01293     if (!swallowEvent) {
01294     khtml::MouseReleaseEvent event( _mouse, xm, ym, mev.url, mev.target, mev.innerNode );
01295     QApplication::sendEvent( m_part, &event );
01296     }
01297 }
01298 
01299 // returns true if event should be swallowed
01300 bool KHTMLView::dispatchKeyEvent( QKeyEvent *_ke )
01301 {
01302     if (!m_part->xmlDocImpl())
01303         return false;
01304     // Pressing and releasing a key should generate keydown, keypress and keyup events
01305     // Holding it down should generated keydown, keypress (repeatedly) and keyup events
01306     // The problem here is that Qt generates two autorepeat events (keyrelease+keypress)
01307     // for autorepeating, while DOM wants only one autorepeat event (keypress), so one
01308     // of the Qt events shouldn't be passed to DOM, but it should be still filtered
01309     // out if DOM would filter the autorepeat event. Additional problem is that Qt keyrelease
01310     // events don't have text() set (Qt bug?), so DOM often would ignore the keypress event
01311     // if it was created using Qt keyrelease, but Qt autorepeat keyrelease comes
01312     // before Qt autorepeat keypress (i.e. problem whether to filter it out or not).
01313     // The solution is to filter out and postpone the Qt autorepeat keyrelease until
01314     // the following Qt keypress event comes. If DOM accepts the DOM keypress event,
01315     // the postponed event will be simply discarded. If not, it will be passed to keyPressEvent()
01316     // again, and here it will be ignored.
01317     //
01318     //  Qt:      Press      | Release(autorepeat) Press(autorepeat) etc. |   Release
01319     //  DOM:   Down + Press |      (nothing)           Press             |     Up
01320 
01321     // It's also possible to get only Releases. E.g. the release of alt-tab,
01322     // or when the keypresses get captured by an accel.
01323 
01324     if( _ke == d->postponed_autorepeat ) // replayed event
01325     {
01326         return false;
01327     }
01328 
01329     if( _ke->type() == QEvent::KeyPress )
01330     {
01331         if( !_ke->isAutoRepeat())
01332         {
01333             bool ret = dispatchKeyEventHelper( _ke, false ); // keydown
01334             // don't send keypress even if keydown was blocked, like IE (and unlike Mozilla)
01335             if( !ret && dispatchKeyEventHelper( _ke, true )) // keypress
01336                 ret = true;
01337             return ret;
01338         }
01339         else // autorepeat
01340         {
01341             bool ret = dispatchKeyEventHelper( _ke, true ); // keypress
01342             if( !ret && d->postponed_autorepeat )
01343                 keyPressEvent( d->postponed_autorepeat );
01344             delete d->postponed_autorepeat;
01345             d->postponed_autorepeat = NULL;
01346             return ret;
01347         }
01348     }
01349     else // QEvent::KeyRelease
01350     {
01351         // Discard postponed "autorepeat key-release" events that didn't see
01352         // a keypress after them (e.g. due to QAccel)
01353         if ( d->postponed_autorepeat ) {
01354             delete d->postponed_autorepeat;
01355             d->postponed_autorepeat = 0;
01356         }
01357 
01358         if( !_ke->isAutoRepeat()) {
01359             return dispatchKeyEventHelper( _ke, false ); // keyup
01360         }
01361         else
01362         {
01363             d->postponed_autorepeat = new QKeyEvent( _ke->type(), _ke->key(), _ke->ascii(), _ke->state(),
01364                 _ke->text(), _ke->isAutoRepeat(), _ke->count());
01365             if( _ke->isAccepted())
01366                 d->postponed_autorepeat->accept();
01367             else
01368                 d->postponed_autorepeat->ignore();
01369             return true;
01370         }
01371     }
01372 }
01373 
01374 // returns true if event should be swallowed
01375 bool KHTMLView::dispatchKeyEventHelper( QKeyEvent *_ke, bool keypress )
01376 {
01377     DOM::NodeImpl* keyNode = m_part->xmlDocImpl()->focusNode();
01378     if (keyNode) {
01379         return keyNode->dispatchKeyEvent(_ke, keypress);
01380     } else { // no focused node, send to document
01381         return m_part->xmlDocImpl()->dispatchKeyEvent(_ke, keypress);
01382     }
01383 }
01384 
01385 void KHTMLView::keyPressEvent( QKeyEvent *_ke )
01386 {
01387 #ifndef KHTML_NO_TYPE_AHEAD_FIND
01388     if(d->typeAheadActivated)
01389     {
01390         // type-ahead find aka find-as-you-type
01391         if(_ke->key() == Key_BackSpace)
01392         {
01393             d->findString = d->findString.left(d->findString.length() - 1);
01394 
01395             if(!d->findString.isEmpty())
01396             {
01397                 findAhead(false);
01398             }
01399             else
01400             {
01401                 findTimeout();
01402             }
01403 
01404             d->timer.start(3000, true);
01405             _ke->accept();
01406             return;
01407         }
01408         else if(_ke->key() == Key_Escape)
01409         {
01410             findTimeout();
01411 
01412             _ke->accept();
01413             return;
01414         }
01415         else if(_ke->key() == Key_Space || !_ke->text().stripWhiteSpace().isEmpty())
01416         {
01417             d->findString += _ke->text();
01418 
01419             findAhead(true);
01420 
01421             d->timer.start(3000, true);
01422             _ke->accept();
01423             return;
01424         }
01425     }
01426 #endif // KHTML_NO_TYPE_AHEAD_FIND
01427 
01428 #ifndef KHTML_NO_CARET
01429     if (m_part->isEditable() || m_part->isCaretMode()
01430         || (m_part->xmlDocImpl() && m_part->xmlDocImpl()->focusNode()
01431         && m_part->xmlDocImpl()->focusNode()->contentEditable())) {
01432       d->caretViewContext()->keyReleasePending = true;
01433       caretKeyPressEvent(_ke);
01434       return;
01435     }
01436 #endif // KHTML_NO_CARET
01437 
01438     // If CTRL was hit, be prepared for access keys
01439     if (d->accessKeysEnabled && _ke->key() == Key_Control && _ke->state()==0 && !d->accessKeysActivated)
01440     {
01441         d->accessKeysPreActivate=true;
01442         _ke->accept();
01443         return;
01444     }
01445 
01446     if (_ke->key() == Key_Shift && _ke->state()==0)
01447         d->scrollSuspendPreActivate=true;
01448 
01449     // accesskey handling needs to be done before dispatching, otherwise e.g. lineedits
01450     // may eat the event
01451 
01452     if (d->accessKeysEnabled && d->accessKeysActivated)
01453     {
01454         int state = ( _ke->state() & ( ShiftButton | ControlButton | AltButton | MetaButton ));
01455         if ( state==0 || state==ShiftButton) {
01456     if (_ke->key() != Key_Shift) accessKeysTimeout();
01457         handleAccessKey( _ke );
01458         _ke->accept();
01459         return;
01460         }
01461     accessKeysTimeout();
01462     }
01463 
01464     if ( dispatchKeyEvent( _ke )) {
01465         // If either keydown or keypress was accepted by a widget, or canceled by JS, stop here.
01466         _ke->accept();
01467         return;
01468     }
01469 
01470     int offs = (clipper()->height() < 30) ? clipper()->height() : 30;
01471     if (_ke->state() & Qt::ShiftButton)
01472       switch(_ke->key())
01473         {
01474         case Key_Space:
01475             scrollBy( 0, -clipper()->height() + offs );
01476             if(d->scrollSuspended)
01477                 d->newScrollTimer(this, 0);
01478             break;
01479 
01480         case Key_Down:
01481         case Key_J:
01482             d->adjustScroller(this, KHTMLViewPrivate::ScrollDown, KHTMLViewPrivate::ScrollUp);
01483             break;
01484 
01485         case Key_Up:
01486         case Key_K:
01487             d->adjustScroller(this, KHTMLViewPrivate::ScrollUp, KHTMLViewPrivate::ScrollDown);
01488             break;
01489 
01490         case Key_Left:
01491         case Key_H:
01492             d->adjustScroller(this, KHTMLViewPrivate::ScrollLeft, KHTMLViewPrivate::ScrollRight);
01493             break;
01494 
01495         case Key_Right:
01496         case Key_L:
01497             d->adjustScroller(this, KHTMLViewPrivate::ScrollRight, KHTMLViewPrivate::ScrollLeft);
01498             break;
01499         }
01500     else
01501         switch ( _ke->key() )
01502         {
01503         case Key_Down:
01504         case Key_J:
01505             if (!d->scrollTimerId || d->scrollSuspended)
01506                 scrollBy( 0, 10 );
01507             if (d->scrollTimerId)
01508                 d->newScrollTimer(this, 0);
01509             break;
01510 
01511         case Key_Space:
01512         case Key_Next:
01513             scrollBy( 0, clipper()->height() - offs );
01514             if(d->scrollSuspended)
01515                 d->newScrollTimer(this, 0);
01516             break;
01517 
01518         case Key_Up:
01519         case Key_K:
01520             if (!d->scrollTimerId || d->scrollSuspended)
01521                 scrollBy( 0, -10 );
01522             if (d->scrollTimerId)
01523                 d->newScrollTimer(this, 0);
01524             break;
01525 
01526         case Key_Prior:
01527             scrollBy( 0, -clipper()->height() + offs );
01528             if(d->scrollSuspended)
01529                 d->newScrollTimer(this, 0);
01530             break;
01531         case Key_Right:
01532         case Key_L:
01533             if (!d->scrollTimerId || d->scrollSuspended)
01534                 scrollBy( 10, 0 );
01535             if (d->scrollTimerId)
01536                 d->newScrollTimer(this, 0);
01537             break;
01538         case Key_Left:
01539         case Key_H:
01540             if (!d->scrollTimerId || d->scrollSuspended)
01541                 scrollBy( -10, 0 );
01542             if (d->scrollTimerId)
01543                 d->newScrollTimer(this, 0);
01544             break;
01545         case Key_Enter:
01546         case Key_Return:
01547         // ### FIXME:
01548         // or even better to HTMLAnchorElementImpl::event()
01549             if (m_part->xmlDocImpl()) {
01550         NodeImpl *n = m_part->xmlDocImpl()->focusNode();
01551         if (n)
01552             n->setActive();
01553         }
01554             break;
01555         case Key_Home:
01556             setContentsPos( 0, 0 );
01557             if(d->scrollSuspended)
01558                 d->newScrollTimer(this, 0);
01559             break;
01560         case Key_End:
01561             setContentsPos( 0, contentsHeight() - visibleHeight() );
01562             if(d->scrollSuspended)
01563                 d->newScrollTimer(this, 0);
01564             break;
01565         case Key_Shift:
01566             // what are you doing here?
01567         _ke->ignore();
01568             return;
01569         default:
01570             if (d->scrollTimerId)
01571                 d->newScrollTimer(this, 0);
01572         _ke->ignore();
01573             return;
01574         }
01575 
01576     _ke->accept();
01577 }
01578 
01579 void KHTMLView::findTimeout()
01580 {
01581 #ifndef KHTML_NO_TYPE_AHEAD_FIND
01582     d->typeAheadActivated = false;
01583     d->findString = "";
01584     m_part->setStatusBarText(i18n("Find stopped."), KHTMLPart::BarDefaultText);
01585     m_part->enableFindAheadActions( true );
01586 #endif // KHTML_NO_TYPE_AHEAD_FIND
01587 }
01588 
01589 #ifndef KHTML_NO_TYPE_AHEAD_FIND
01590 void KHTMLView::startFindAhead( bool linksOnly )
01591 {
01592     if( linksOnly )
01593     {
01594         d->findLinksOnly = true;
01595         m_part->setStatusBarText(i18n("Starting -- find links as you type"),
01596                                  KHTMLPart::BarDefaultText);
01597     }
01598     else
01599     {
01600         d->findLinksOnly = false;
01601         m_part->setStatusBarText(i18n("Starting -- find text as you type"),
01602                                  KHTMLPart::BarDefaultText);
01603     }
01604 
01605     m_part->findTextBegin();
01606     d->typeAheadActivated = true;
01607         // disable, so that the shortcut ( / or ' by default ) doesn't interfere
01608     m_part->enableFindAheadActions( false );
01609     d->timer.start(3000, true);
01610 }
01611 
01612 void KHTMLView::findAhead(bool increase)
01613 {
01614     QString status;
01615 
01616     if(d->findLinksOnly)
01617     {
01618         m_part->findText(d->findString, KHTMLPart::FindNoPopups |
01619                          KHTMLPart::FindLinksOnly, this);
01620         if(m_part->findTextNext())
01621         {
01622             status = i18n("Link found: \"%1\".");
01623         }
01624         else
01625         {
01626             if(increase) KNotifyClient::beep();
01627             status = i18n("Link not found: \"%1\".");
01628         }
01629     }
01630     else
01631     {
01632         m_part->findText(d->findString, KHTMLPart::FindNoPopups, this);
01633         if(m_part->findTextNext())
01634         {
01635             status = i18n("Text found: \"%1\".");
01636         }
01637         else
01638         {
01639             if(increase) KNotifyClient::beep();
01640             status = i18n("Text not found: \"%1\".");
01641         }
01642     }
01643 
01644     m_part->setStatusBarText(status.arg(d->findString.lower()),
01645                              KHTMLPart::BarDefaultText);
01646 }
01647 
01648 void KHTMLView::updateFindAheadTimeout()
01649 {
01650     if( d->typeAheadActivated )
01651         d->timer.start( 3000, true );
01652 }
01653 
01654 #endif // KHTML_NO_TYPE_AHEAD_FIND
01655 
01656 void KHTMLView::keyReleaseEvent(QKeyEvent *_ke)
01657 {
01658 #ifndef KHTML_NO_TYPE_AHEAD_FIND
01659     if(d->typeAheadActivated) {
01660         _ke->accept();
01661         return;
01662     }
01663 #endif
01664     if (d->m_caretViewContext && d->m_caretViewContext->keyReleasePending) {
01665         //caretKeyReleaseEvent(_ke);
01666     d->m_caretViewContext->keyReleasePending = false;
01667     return;
01668     }
01669 
01670     if( d->scrollSuspendPreActivate && _ke->key() != Key_Shift )
01671         d->scrollSuspendPreActivate = false;
01672     if( _ke->key() == Key_Shift && d->scrollSuspendPreActivate && _ke->state() == Qt::ShiftButton
01673         && !(KApplication::keyboardMouseState() & Qt::ShiftButton))
01674         if (d->scrollTimerId)
01675                 d->scrollSuspended = !d->scrollSuspended;
01676 
01677     if (d->accessKeysEnabled) 
01678     {
01679         if (d->accessKeysPreActivate && _ke->key() != Key_Control) 
01680             d->accessKeysPreActivate=false;
01681         if (d->accessKeysPreActivate && _ke->state() == Qt::ControlButton && !(KApplication::keyboardMouseState() & Qt::ControlButton))
01682         {
01683         displayAccessKeys();
01684         m_part->setStatusBarText(i18n("Access Keys activated"),KHTMLPart::BarOverrideText);
01685         d->accessKeysActivated = true;
01686         d->accessKeysPreActivate = false;
01687             _ke->accept();
01688             return;
01689         }
01690     else if (d->accessKeysActivated) 
01691         {
01692             accessKeysTimeout();
01693             _ke->accept();
01694             return;
01695         }
01696     }
01697 
01698     // Send keyup event
01699     if ( dispatchKeyEvent( _ke ) )
01700     {
01701         _ke->accept();
01702         return;
01703     }
01704 
01705     QScrollView::keyReleaseEvent(_ke);
01706 }
01707 
01708 void KHTMLView::contentsContextMenuEvent ( QContextMenuEvent * /*ce*/ )
01709 {
01710 // ### what kind of c*** is that ?
01711 #if 0
01712     if (!m_part->xmlDocImpl()) return;
01713     int xm = _ce->x();
01714     int ym = _ce->y();
01715 
01716     DOM::NodeImpl::MouseEvent mev( _ce->state(), DOM::NodeImpl::MouseMove ); // ### not a mouse event!
01717     m_part->xmlDocImpl()->prepareMouseEvent( xm, ym, &mev );
01718 
01719     NodeImpl *targetNode = mev.innerNode.handle();
01720     if (targetNode && targetNode->renderer() && targetNode->renderer()->isWidget()) {
01721         int absx = 0;
01722         int absy = 0;
01723         targetNode->renderer()->absolutePosition(absx,absy);
01724         QPoint pos(xm-absx,ym-absy);
01725 
01726         QWidget *w = static_cast<RenderWidget*>(targetNode->renderer())->widget();
01727         QContextMenuEvent cme(_ce->reason(),pos,_ce->globalPos(),_ce->state());
01728         setIgnoreEvents(true);
01729         QApplication::sendEvent(w,&cme);
01730         setIgnoreEvents(false);
01731     }
01732 #endif
01733 }
01734 
01735 bool KHTMLView::focusNextPrevChild( bool next )
01736 {
01737     // Now try to find the next child
01738     if (m_part->xmlDocImpl() && focusNextPrevNode(next))
01739     {
01740     if (m_part->xmlDocImpl()->focusNode())
01741         kdDebug() << "focusNode.name: "
01742               << m_part->xmlDocImpl()->focusNode()->nodeName().string() << endl;
01743     return true; // focus node found
01744     }
01745 
01746     // If we get here, pass tabbing control up to the next/previous child in our parent
01747     d->pseudoFocusNode = KHTMLViewPrivate::PFNone;
01748     if (m_part->parentPart() && m_part->parentPart()->view())
01749         return m_part->parentPart()->view()->focusNextPrevChild(next);
01750 
01751     return QWidget::focusNextPrevChild(next);
01752 }
01753 
01754 void KHTMLView::doAutoScroll()
01755 {
01756     QPoint pos = QCursor::pos();
01757     pos = viewport()->mapFromGlobal( pos );
01758 
01759     int xm, ym;
01760     viewportToContents(pos.x(), pos.y(), xm, ym);
01761 
01762     pos = QPoint(pos.x() - viewport()->x(), pos.y() - viewport()->y());
01763     if ( (pos.y() < 0) || (pos.y() > visibleHeight()) ||
01764          (pos.x() < 0) || (pos.x() > visibleWidth()) )
01765     {
01766         ensureVisible( xm, ym, 0, 5 );
01767 
01768 #ifndef KHTML_NO_SELECTION
01769         // extend the selection while scrolling
01770     DOM::Node innerNode;
01771     if (m_part->isExtendingSelection()) {
01772             RenderObject::NodeInfo renderInfo(true/*readonly*/, false/*active*/);
01773             m_part->xmlDocImpl()->renderer()->layer()
01774                 ->nodeAtPoint(renderInfo, xm, ym);
01775             innerNode = renderInfo.innerNode();
01776     }/*end if*/
01777 
01778         if (innerNode.handle() && innerNode.handle()->renderer()) {
01779             int absX, absY;
01780             innerNode.handle()->renderer()->absolutePosition(absX, absY);
01781 
01782             m_part->extendSelectionTo(xm, ym, absX, absY, innerNode);
01783         }/*end if*/
01784 #endif // KHTML_NO_SELECTION
01785     }
01786 }
01787 
01788 
01789 class HackWidget : public QWidget
01790 {
01791  public:
01792     inline void setNoErase() { setWFlags(getWFlags()|WRepaintNoErase); }
01793 };
01794 
01795 bool KHTMLView::eventFilter(QObject *o, QEvent *e)
01796 {
01797     if ( e->type() == QEvent::AccelOverride ) {
01798     QKeyEvent* ke = (QKeyEvent*) e;
01799 //kdDebug(6200) << "QEvent::AccelOverride" << endl;
01800     if (m_part->isEditable() || m_part->isCaretMode()
01801         || (m_part->xmlDocImpl() && m_part->xmlDocImpl()->focusNode()
01802         && m_part->xmlDocImpl()->focusNode()->contentEditable())) {
01803 //kdDebug(6200) << "editable/navigable" << endl;
01804         if ( (ke->state() & ControlButton) || (ke->state() & ShiftButton) ) {
01805         switch ( ke->key() ) {
01806         case Key_Left:
01807         case Key_Right:
01808         case Key_Up:
01809         case Key_Down:
01810         case Key_Home:
01811         case Key_End:
01812             ke->accept();
01813 //kdDebug(6200) << "eaten" << endl;
01814             return true;
01815         default:
01816             break;
01817         }
01818         }
01819     }
01820     }
01821 
01822     if ( e->type() == QEvent::Leave && d->cursor_icon_widget )
01823         d->cursor_icon_widget->hide();
01824 
01825     QWidget *view = viewport();
01826 
01827     if (o == view) {
01828     // we need to install an event filter on all children of the viewport to
01829     // be able to get correct stacking of children within the document.
01830     if(e->type() == QEvent::ChildInserted) {
01831         QObject *c = static_cast<QChildEvent *>(e)->child();
01832         if (c->isWidgetType()) {
01833         QWidget *w = static_cast<QWidget *>(c);
01834         // don't install the event filter on toplevels
01835         if (w->parentWidget(true) == view) {
01836             if (!strcmp(w->name(), "__khtml")) {
01837             w->installEventFilter(this);
01838             w->unsetCursor();
01839             if (!::qt_cast<QFrame*>(w))
01840                 w->setBackgroundMode( QWidget::NoBackground );
01841             static_cast<HackWidget *>(w)->setNoErase();
01842             if (w->children()) {
01843                 QObjectListIterator it(*w->children());
01844                 for (; it.current(); ++it) {
01845                 QWidget *widget = ::qt_cast<QWidget *>(it.current());
01846                 if (widget && !widget->isTopLevel()) {
01847                     if (!::qt_cast<QFrame*>(w))
01848                         widget->setBackgroundMode( QWidget::NoBackground );
01849                     static_cast<HackWidget *>(widget)->setNoErase();
01850                     widget->installEventFilter(this);
01851                 }
01852                 }
01853             }
01854             }
01855         }
01856         }
01857     }
01858     } else if (o->isWidgetType()) {
01859     QWidget *v = static_cast<QWidget *>(o);
01860         QWidget *c = v;
01861     while (v && v != view) {
01862             c = v;
01863         v = v->parentWidget(true);
01864     }
01865 
01866     if (v && !strcmp(c->name(), "__khtml")) {
01867         bool block = false;
01868         QWidget *w = static_cast<QWidget *>(o);
01869         switch(e->type()) {
01870         case QEvent::Paint:
01871         if (!allowWidgetPaintEvents) {
01872             // eat the event. Like this we can control exactly when the widget
01873             // get's repainted.
01874             block = true;
01875             int x = 0, y = 0;
01876             QWidget *v = w;
01877             while (v && v != view) {
01878             x += v->x();
01879             y += v->y();
01880             v = v->parentWidget();
01881             }
01882             viewportToContents( x, y, x, y );
01883             QPaintEvent *pe = static_cast<QPaintEvent *>(e);
01884             bool asap = !d->contentsMoving && ::qt_cast<QScrollView *>(c);
01885 
01886             // QScrollView needs fast repaints
01887             if ( asap && !d->painting && m_part->xmlDocImpl() && m_part->xmlDocImpl()->renderer() &&
01888                  !static_cast<khtml::RenderCanvas *>(m_part->xmlDocImpl()->renderer())->needsLayout() ) {
01889                 repaintContents(x + pe->rect().x(), y + pe->rect().y(),
01890                                             pe->rect().width(), pe->rect().height(), true);
01891                     } else {
01892                 scheduleRepaint(x + pe->rect().x(), y + pe->rect().y(),
01893                     pe->rect().width(), pe->rect().height(), asap);
01894                     }
01895         }
01896         break;
01897         case QEvent::MouseMove:
01898         case QEvent::MouseButtonPress:
01899         case QEvent::MouseButtonRelease:
01900         case QEvent::MouseButtonDblClick: {
01901         if ( (w->parentWidget() == view || ::qt_cast<QScrollView*>(c)) && !::qt_cast<QScrollBar *>(w)) {
01902             QMouseEvent *me = static_cast<QMouseEvent *>(e);
01903             QPoint pt = w->mapTo( view, me->pos());
01904             QMouseEvent me2(me->type(), pt, me->button(), me->state());
01905 
01906             if (e->type() == QEvent::MouseMove)
01907             viewportMouseMoveEvent(&me2);
01908             else if(e->type() == QEvent::MouseButtonPress)
01909             viewportMousePressEvent(&me2);
01910             else if(e->type() == QEvent::MouseButtonRelease)
01911             viewportMouseReleaseEvent(&me2);
01912             else
01913             viewportMouseDoubleClickEvent(&me2);
01914             block = true;
01915                 }
01916         break;
01917         }
01918         case QEvent::KeyPress:
01919         case QEvent::KeyRelease:
01920         if (w->parentWidget() == view && !::qt_cast<QScrollBar *>(w)) {
01921             QKeyEvent *ke = static_cast<QKeyEvent *>(e);
01922             if (e->type() == QEvent::KeyPress)
01923             keyPressEvent(ke);
01924             else
01925             keyReleaseEvent(ke);
01926             block = true;
01927         }
01928         default:
01929         break;
01930         }
01931         if (block) {
01932         //qDebug("eating event");
01933         return true;
01934         }
01935     }
01936     }
01937 
01938 //    kdDebug(6000) <<"passing event on to sv event filter object=" << o->className() << " event=" << e->type() << endl;
01939     return QScrollView::eventFilter(o, e);
01940 }
01941 
01942 
01943 DOM::NodeImpl *KHTMLView::nodeUnderMouse() const
01944 {
01945     return d->underMouse;
01946 }
01947 
01948 DOM::NodeImpl *KHTMLView::nonSharedNodeUnderMouse() const
01949 {
01950     return d->underMouseNonShared;
01951 }
01952 
01953 bool KHTMLView::scrollTo(const QRect &bounds)
01954 {
01955     d->scrollingSelf = true; // so scroll events get ignored
01956 
01957     int x, y, xe, ye;
01958     x = bounds.left();
01959     y = bounds.top();
01960     xe = bounds.right();
01961     ye = bounds.bottom();
01962 
01963     //kdDebug(6000)<<"scrolling coords: x="<<x<<" y="<<y<<" width="<<xe-x<<" height="<<ye-y<<endl;
01964 
01965     int deltax;
01966     int deltay;
01967 
01968     int curHeight = visibleHeight();
01969     int curWidth = visibleWidth();
01970 
01971     if (ye-y>curHeight-d->borderY)
01972     ye  = y + curHeight - d->borderY;
01973 
01974     if (xe-x>curWidth-d->borderX)
01975     xe = x + curWidth - d->borderX;
01976 
01977     // is xpos of target left of the view's border?
01978     if (x < contentsX() + d->borderX )
01979             deltax = x - contentsX() - d->borderX;
01980     // is xpos of target right of the view's right border?
01981     else if (xe + d->borderX > contentsX() + curWidth)
01982             deltax = xe + d->borderX - ( contentsX() + curWidth );
01983     else
01984         deltax = 0;
01985 
01986     // is ypos of target above upper border?
01987     if (y < contentsY() + d->borderY)
01988             deltay = y - contentsY() - d->borderY;
01989     // is ypos of target below lower border?
01990     else if (ye + d->borderY > contentsY() + curHeight)
01991             deltay = ye + d->borderY - ( contentsY() + curHeight );
01992     else
01993         deltay = 0;
01994 
01995     int maxx = curWidth-d->borderX;
01996     int maxy = curHeight-d->borderY;
01997 
01998     int scrollX,scrollY;
01999 
02000     scrollX = deltax > 0 ? (deltax > maxx ? maxx : deltax) : deltax == 0 ? 0 : (deltax>-maxx ? deltax : -maxx);
02001     scrollY = deltay > 0 ? (deltay > maxy ? maxy : deltay) : deltay == 0 ? 0 : (deltay>-maxy ? deltay : -maxy);
02002 
02003     if (contentsX() + scrollX < 0)
02004     scrollX = -contentsX();
02005     else if (contentsWidth() - visibleWidth() - contentsX() < scrollX)
02006     scrollX = contentsWidth() - visibleWidth() - contentsX();
02007 
02008     if (contentsY() + scrollY < 0)
02009     scrollY = -contentsY();
02010     else if (contentsHeight() - visibleHeight() - contentsY() < scrollY)
02011     scrollY = contentsHeight() - visibleHeight() - contentsY();
02012 
02013     scrollBy(scrollX, scrollY);
02014 
02015     d->scrollingSelf = false;
02016 
02017     if ( (abs(deltax)<=maxx) && (abs(deltay)<=maxy) )
02018     return true;
02019     else return false;
02020 
02021 }
02022 
02023 bool KHTMLView::focusNextPrevNode(bool next)
02024 {
02025     // Sets the focus node of the document to be the node after (or if
02026     // next is false, before) the current focus node.  Only nodes that
02027     // are selectable (i.e. for which isFocusable() returns true) are
02028     // taken into account, and the order used is that specified in the
02029     // HTML spec (see DocumentImpl::nextFocusNode() and
02030     // DocumentImpl::previousFocusNode() for details).
02031 
02032     DocumentImpl *doc = m_part->xmlDocImpl();
02033     NodeImpl *oldFocusNode = doc->focusNode();
02034 
02035 #if 1
02036     // If the user has scrolled the document, then instead of picking
02037     // the next focusable node in the document, use the first one that
02038     // is within the visible area (if possible).
02039     if (d->scrollBarMoved)
02040     {
02041     NodeImpl *toFocus;
02042     if (next)
02043         toFocus = doc->nextFocusNode(oldFocusNode);
02044     else
02045         toFocus = doc->previousFocusNode(oldFocusNode);
02046 
02047     if (!toFocus && oldFocusNode)
02048         if (next)
02049         toFocus = doc->nextFocusNode(NULL);
02050         else
02051         toFocus = doc->previousFocusNode(NULL);
02052 
02053     while (toFocus && toFocus != oldFocusNode)
02054     {
02055 
02056         QRect focusNodeRect = toFocus->getRect();
02057         if ((focusNodeRect.left() > contentsX()) && (focusNodeRect.right() < contentsX() + visibleWidth()) &&
02058         (focusNodeRect.top() > contentsY()) && (focusNodeRect.bottom() < contentsY() + visibleHeight())) {
02059         {
02060             QRect r = toFocus->getRect();
02061             ensureVisible( r.right(), r.bottom());
02062             ensureVisible( r.left(), r.top());
02063             d->scrollBarMoved = false;
02064             d->tabMovePending = false;
02065             d->lastTabbingDirection = next;
02066             d->pseudoFocusNode = KHTMLViewPrivate::PFNone;
02067             m_part->xmlDocImpl()->setFocusNode(toFocus);
02068             Node guard(toFocus);
02069             if (!toFocus->hasOneRef() )
02070             {
02071             emit m_part->nodeActivated(Node(toFocus));
02072             }
02073             return true;
02074         }
02075         }
02076         if (next)
02077         toFocus = doc->nextFocusNode(toFocus);
02078         else
02079         toFocus = doc->previousFocusNode(toFocus);
02080 
02081         if (!toFocus && oldFocusNode)
02082         if (next)
02083             toFocus = doc->nextFocusNode(NULL);
02084         else
02085             toFocus = doc->previousFocusNode(NULL);
02086     }
02087 
02088     d->scrollBarMoved = false;
02089     }
02090 #endif
02091 
02092     if (!oldFocusNode && d->pseudoFocusNode == KHTMLViewPrivate::PFNone)
02093     {
02094     ensureVisible(contentsX(), next?0:contentsHeight());
02095     d->scrollBarMoved = false;
02096     d->pseudoFocusNode = next?KHTMLViewPrivate::PFTop:KHTMLViewPrivate::PFBottom;
02097     return true;
02098     }
02099 
02100     NodeImpl *newFocusNode = NULL;
02101 
02102     if (d->tabMovePending && next != d->lastTabbingDirection)
02103     {
02104     //kdDebug ( 6000 ) << " tab move pending and tabbing direction changed!\n";
02105     newFocusNode = oldFocusNode;
02106     }
02107     else if (next)
02108     {
02109     if (oldFocusNode || d->pseudoFocusNode == KHTMLViewPrivate::PFTop )
02110         newFocusNode = doc->nextFocusNode(oldFocusNode);
02111     }
02112     else
02113     {
02114     if (oldFocusNode || d->pseudoFocusNode == KHTMLViewPrivate::PFBottom )
02115         newFocusNode = doc->previousFocusNode(oldFocusNode);
02116     }
02117 
02118     bool targetVisible = false;
02119     if (!newFocusNode)
02120     {
02121     if ( next )
02122     {
02123         targetVisible = scrollTo(QRect(contentsX()+visibleWidth()/2,contentsHeight()-d->borderY,0,0));
02124     }
02125     else
02126     {
02127         targetVisible = scrollTo(QRect(contentsX()+visibleWidth()/2,d->borderY,0,0));
02128     }
02129     }
02130     else
02131     {
02132 #ifndef KHTML_NO_CARET
02133         // if it's an editable element, activate the caret
02134         if (!m_part->isCaretMode() && !m_part->isEditable()
02135         && newFocusNode->contentEditable()) {
02136         d->caretViewContext();
02137         moveCaretTo(newFocusNode, 0L, true);
02138         } else {
02139         caretOff();
02140     }
02141 #endif // KHTML_NO_CARET
02142 
02143     targetVisible = scrollTo(newFocusNode->getRect());
02144     }
02145 
02146     if (targetVisible)
02147     {
02148     //kdDebug ( 6000 ) << " target reached.\n";
02149     d->tabMovePending = false;
02150 
02151     m_part->xmlDocImpl()->setFocusNode(newFocusNode);
02152     if (newFocusNode)
02153     {
02154         Node guard(newFocusNode);
02155         if (!newFocusNode->hasOneRef() )
02156         {
02157         emit m_part->nodeActivated(Node(newFocusNode));
02158         }
02159         return true;
02160     }
02161     else
02162     {
02163         d->pseudoFocusNode = next?KHTMLViewPrivate::PFBottom:KHTMLViewPrivate::PFTop;
02164         return false;
02165     }
02166     }
02167     else
02168     {
02169     if (!d->tabMovePending)
02170         d->lastTabbingDirection = next;
02171     d->tabMovePending = true;
02172     return true;
02173     }
02174 }
02175 
02176 void KHTMLView::displayAccessKeys()
02177 {
02178     QValueVector< QChar > taken;
02179     displayAccessKeys( NULL, this, taken, false );
02180     displayAccessKeys( NULL, this, taken, true );
02181 }
02182 
02183 void KHTMLView::displayAccessKeys( KHTMLView* caller, KHTMLView* origview, QValueVector< QChar >& taken, bool use_fallbacks )
02184 {
02185     QMap< ElementImpl*, QChar > fallbacks;
02186     if( use_fallbacks )
02187         fallbacks = buildFallbackAccessKeys();
02188     for( NodeImpl* n = m_part->xmlDocImpl(); n != NULL; n = n->traverseNextNode()) {
02189         if( n->isElementNode()) {
02190             ElementImpl* en = static_cast< ElementImpl* >( n );
02191             DOMString s = en->getAttribute( ATTR_ACCESSKEY );
02192             QString accesskey;
02193             if( s.length() == 1 ) {
02194                 QChar a = s.string()[ 0 ].upper();
02195                 if( qFind( taken.begin(), taken.end(), a ) == taken.end()) // !contains
02196                     accesskey = a;
02197             }
02198             if( accesskey.isNull() && fallbacks.contains( en )) {
02199                 QChar a = fallbacks[ en ].upper();
02200                 if( qFind( taken.begin(), taken.end(), a ) == taken.end()) // !contains
02201                     accesskey = QString( "<qt><i>" ) + a + "</i></qt>";
02202             }
02203             if( !accesskey.isNull()) {
02204             QRect rec=en->getRect();
02205             QLabel *lab=new QLabel(accesskey,viewport(),0,Qt::WDestructiveClose);
02206             connect( origview, SIGNAL(hideAccessKeys()), lab, SLOT(close()) );
02207             connect( this, SIGNAL(repaintAccessKeys()), lab, SLOT(repaint()));
02208             lab->setPalette(QToolTip::palette());
02209             lab->setLineWidth(2);
02210             lab->setFrameStyle(QFrame::Box | QFrame::Plain);
02211             lab->setMargin(3);
02212             lab->adjustSize();
02213             addChild(lab,
02214                     KMIN(rec.left()+rec.width()/2, contentsWidth() - lab->width()),
02215                     KMIN(rec.top()+rec.height()/2, contentsHeight() - lab->height()));
02216             showChild(lab);
02217                 taken.append( accesskey[ 0 ] );
02218         }
02219         }
02220     }
02221     if( use_fallbacks )
02222         return;
02223     QPtrList<KParts::ReadOnlyPart> frames = m_part->frames();
02224     for( QPtrListIterator<KParts::ReadOnlyPart> it( frames );
02225          it != NULL;
02226          ++it ) {
02227         if( !(*it)->inherits( "KHTMLPart" ))
02228             continue;
02229         KHTMLPart* part = static_cast< KHTMLPart* >( *it );
02230         if( part->view() && part->view() != caller )
02231             part->view()->displayAccessKeys( this, origview, taken, use_fallbacks );
02232     }
02233     // pass up to the parent
02234     if (m_part->parentPart() && m_part->parentPart()->view()
02235         && m_part->parentPart()->view() != caller)
02236         m_part->parentPart()->view()->displayAccessKeys( this, origview, taken, use_fallbacks );
02237 }
02238 
02239 
02240 
02241 void KHTMLView::accessKeysTimeout()
02242 {
02243 d->accessKeysActivated=false;
02244 d->accessKeysPreActivate = false;
02245 m_part->setStatusBarText(QString::null, KHTMLPart::BarOverrideText);
02246 emit hideAccessKeys();
02247 }
02248 
02249 // Handling of the HTML accesskey attribute.
02250 bool KHTMLView::handleAccessKey( const QKeyEvent* ev )
02251 {
02252 // Qt interprets the keyevent also with the modifiers, and ev->text() matches that,
02253 // but this code must act as if the modifiers weren't pressed
02254     QChar c;
02255     if( ev->key() >= Key_A && ev->key() <= Key_Z )
02256         c = 'A' + ev->key() - Key_A;
02257     else if( ev->key() >= Key_0 && ev->key() <= Key_9 )
02258         c = '0' + ev->key() - Key_0;
02259     else {
02260         // TODO fake XKeyEvent and XLookupString ?
02261         // This below seems to work e.g. for eacute though.
02262         if( ev->text().length() == 1 )
02263             c = ev->text()[ 0 ];
02264     }
02265     if( c.isNull())
02266         return false;
02267     return focusNodeWithAccessKey( c );
02268 }
02269 
02270 bool KHTMLView::focusNodeWithAccessKey( QChar c, KHTMLView* caller )
02271 {
02272     DocumentImpl *doc = m_part->xmlDocImpl();
02273     if( !doc )
02274         return false;
02275     ElementImpl* node = doc->findAccessKeyElement( c );
02276     if( !node ) {
02277         QPtrList<KParts::ReadOnlyPart> frames = m_part->frames();
02278         for( QPtrListIterator<KParts::ReadOnlyPart> it( frames );
02279              it != NULL;
02280              ++it ) {
02281             if( !(*it)->inherits( "KHTMLPart" ))
02282                 continue;
02283             KHTMLPart* part = static_cast< KHTMLPart* >( *it );
02284             if( part->view() && part->view() != caller
02285                 && part->view()->focusNodeWithAccessKey( c, this ))
02286                 return true;
02287         }
02288         // pass up to the parent
02289         if (m_part->parentPart() && m_part->parentPart()->view()
02290             && m_part->parentPart()->view() != caller
02291             && m_part->parentPart()->view()->focusNodeWithAccessKey( c, this ))
02292             return true;
02293         if( caller == NULL ) { // the active frame (where the accesskey was pressed)
02294             QMap< ElementImpl*, QChar > fallbacks = buildFallbackAccessKeys();
02295             for( QMap< ElementImpl*, QChar >::ConstIterator it = fallbacks.begin();
02296                  it != fallbacks.end();
02297                  ++it )
02298                 if( *it == c ) {
02299                     node = it.key();
02300                     break;
02301                 }
02302         }
02303         if( node == NULL )
02304             return false;
02305     }
02306 
02307     // Scroll the view as necessary to ensure that the new focus node is visible
02308 #ifndef KHTML_NO_CARET
02309     // if it's an editable element, activate the caret
02310     if (!m_part->isCaretMode() && !m_part->isEditable()
02311     && node->contentEditable()) {
02312         d->caretViewContext();
02313         moveCaretTo(node, 0L, true);
02314     } else {
02315         caretOff();
02316     }
02317 #endif // KHTML_NO_CARET
02318 
02319     QRect r = node->getRect();
02320     ensureVisible( r.right(), r.bottom());
02321     ensureVisible( r.left(), r.top());
02322 
02323     Node guard( node );
02324     if( node->isFocusable()) {
02325     if (node->id()==ID_LABEL) {
02326         // if Accesskey is a label, give focus to the label's referrer.
02327         node=static_cast<ElementImpl *>(static_cast< HTMLLabelElementImpl* >( node )->getFormElement());
02328         if (!node) return true;
02329             guard = node;
02330     }
02331         // Set focus node on the document
02332         QFocusEvent::setReason( QFocusEvent::Shortcut );
02333         m_part->xmlDocImpl()->setFocusNode(node);
02334         QFocusEvent::resetReason();
02335         if( node != NULL && node->hasOneRef()) // deleted, only held by guard
02336             return true;
02337         emit m_part->nodeActivated(Node(node));
02338         if( node != NULL && node->hasOneRef())
02339             return true;
02340     }
02341 
02342     switch( node->id()) {
02343         case ID_A:
02344             static_cast< HTMLAnchorElementImpl* >( node )->click();
02345           break;
02346         case ID_INPUT:
02347             static_cast< HTMLInputElementImpl* >( node )->click();
02348           break;
02349         case ID_BUTTON:
02350             static_cast< HTMLButtonElementImpl* >( node )->click();
02351           break;
02352         case ID_AREA:
02353             static_cast< HTMLAreaElementImpl* >( node )->click();
02354           break;
02355         case ID_TEXTAREA:
02356       break; // just focusing it is enough
02357         case ID_LEGEND:
02358             // TODO
02359           break;
02360     }
02361     return true;
02362 }
02363 
02364 static QString getElementText( NodeImpl* start, bool after )
02365 {
02366     QString ret;             // nextSibling(), to go after e.g. </select>
02367     for( NodeImpl* n = after ? start->nextSibling() : start->traversePreviousNode();
02368          n != NULL;
02369          n = after ? n->traverseNextNode() : n->traversePreviousNode()) {
02370         if( n->isTextNode()) {
02371             if( after )
02372                 ret += static_cast< TextImpl* >( n )->toString().string();
02373             else
02374                 ret.prepend( static_cast< TextImpl* >( n )->toString().string());
02375         } else {
02376             switch( n->id()) {
02377                 case ID_A:
02378                 case ID_FONT:
02379                 case ID_TT:
02380                 case ID_U:
02381                 case ID_B:
02382                 case ID_I:
02383                 case ID_S:
02384                 case ID_STRIKE:
02385                 case ID_BIG:
02386                 case ID_SMALL:
02387                 case ID_EM:
02388                 case ID_STRONG:
02389                 case ID_DFN:
02390                 case ID_CODE:
02391                 case ID_SAMP:
02392                 case ID_KBD:
02393                 case ID_VAR:
02394                 case ID_CITE:
02395                 case ID_ABBR:
02396                 case ID_ACRONYM:
02397                 case ID_SUB:
02398                 case ID_SUP:
02399                 case ID_SPAN:
02400                 case ID_NOBR:
02401                 case ID_WBR:
02402                     break;
02403                 case ID_TD:
02404                     if( ret.stripWhiteSpace().isEmpty())
02405                         break;
02406                     // fall through
02407                 default:
02408                     return ret.simplifyWhiteSpace();
02409             }
02410         }
02411     }
02412     return ret.simplifyWhiteSpace();
02413 }
02414 
02415 static QMap< NodeImpl*, QString > buildLabels( NodeImpl* start )
02416 {
02417     QMap< NodeImpl*, QString > ret;
02418     for( NodeImpl* n = start;
02419          n != NULL;
02420          n = n->traverseNextNode()) {
02421         if( n->id() == ID_LABEL ) {
02422             HTMLLabelElementImpl* label = static_cast< HTMLLabelElementImpl* >( n );
02423             NodeImpl* labelfor = label->getFormElement();
02424             if( labelfor )
02425                 ret[ labelfor ] = label->innerText().string().simplifyWhiteSpace();
02426         }
02427     }
02428     return ret;
02429 }
02430 
02431 namespace khtml {
02432 struct AccessKeyData {
02433     ElementImpl* element;
02434     QString text;
02435     QString url;
02436     int priority; // 10(highest) - 0(lowest)
02437 };
02438 }
02439 
02440 QMap< ElementImpl*, QChar > KHTMLView::buildFallbackAccessKeys() const
02441 {
02442     // build a list of all possible candidate elements that could use an accesskey
02443     QValueList< AccessKeyData > data;
02444     QMap< NodeImpl*, QString > labels = buildLabels( m_part->xmlDocImpl());
02445     for( NodeImpl* n = m_part->xmlDocImpl();
02446          n != NULL;
02447          n = n->traverseNextNode()) {
02448         if( n->isElementNode()) {
02449             ElementImpl* element = static_cast< ElementImpl* >( n );
02450             if( element->getAttribute( ATTR_ACCESSKEY ).length() == 1 )
02451                 continue; // has accesskey set, ignore
02452             if( element->renderer() == NULL )
02453                 continue; // not visible
02454             QString text;
02455             QString url;
02456             int priority = 0;
02457             bool ignore = false;
02458             bool text_after = false;
02459             bool text_before = false;
02460             switch( element->id()) {
02461                 case ID_A:
02462                     url = khtml::parseURL(element->getAttribute(ATTR_HREF)).string();
02463                     if( url.isEmpty()) // doesn't have href, it's only an anchor
02464                         continue;
02465                     text = static_cast< HTMLElementImpl* >( element )->innerText().string().simplifyWhiteSpace();
02466                     priority = 2;
02467                     break;
02468                 case ID_INPUT: {
02469                     HTMLInputElementImpl* in = static_cast< HTMLInputElementImpl* >( element );
02470                     switch( in->inputType()) {
02471                         case HTMLInputElementImpl::SUBMIT:
02472                             text = in->value().string();
02473                             if( text.isEmpty())
02474                                 text = i18n( "Submit" );
02475                             priority = 7;
02476                             break;
02477                         case HTMLInputElementImpl::IMAGE:
02478                             text = in->altText().string();
02479                             priority = 7;
02480                             break;
02481                         case HTMLInputElementImpl::BUTTON:
02482                             text = in->value().string();
02483                             priority = 5;
02484                             break;
02485                         case HTMLInputElementImpl::RESET:
02486                             text = in->value().string();
02487                             if( text.isEmpty())
02488                                 text = i18n( "Reset" );
02489                             priority = 5;
02490                             break;
02491                         case HTMLInputElementImpl::HIDDEN:
02492                             ignore = true;
02493                             break;
02494                         case HTMLInputElementImpl::CHECKBOX:
02495                         case HTMLInputElementImpl::RADIO:
02496                             text_after = true;
02497                             priority = 5;
02498                             break;
02499                         case HTMLInputElementImpl::TEXT:
02500                         case HTMLInputElementImpl::PASSWORD:
02501                         case HTMLInputElementImpl::FILE:
02502                             text_before = true;
02503                             priority = 5;
02504                             break;
02505                         default:
02506                             priority = 5;
02507                             break;
02508                     }
02509                     break;
02510                 }
02511                 case ID_BUTTON:
02512                     text = static_cast< HTMLElementImpl* >( element )->innerText().string().simplifyWhiteSpace();
02513                     switch( static_cast< HTMLButtonElementImpl* >( element )->buttonType()) {
02514                         case HTMLButtonElementImpl::SUBMIT:
02515                             if( text.isEmpty())
02516                                 text = i18n( "Submit" );
02517                             priority = 7;
02518                             break;
02519                         case HTMLButtonElementImpl::RESET:
02520                             if( text.isEmpty())
02521                                 text = i18n( "Reset" );
02522                             priority = 5;
02523                             break;
02524                         default:
02525                             priority = 5;
02526                             break;
02527                     break;
02528                     }
02529                 case ID_SELECT: // these don't have accesskey attribute, but quick access may be handy
02530                     text_before = true;
02531                     text_after = true;
02532                     priority = 5;
02533                     break;
02534                 case ID_FRAME:
02535                     ignore = true;
02536                     break;
02537                 default:
02538                     ignore = !element->isFocusable();
02539                     priority = 2;
02540                     break;
02541             }
02542             if( ignore )
02543                 continue;
02544             if( text.isNull() && labels.contains( element ))
02545                 text = labels[ element ];
02546             if( text.isNull() && text_before )
02547                 text = getElementText( element, false );
02548             if( text.isNull() && text_after )
02549                 text = getElementText( element, true );
02550             text = text.stripWhiteSpace();
02551             // increase priority of items which have explicitly specified accesskeys in the config
02552             QValueList< QPair< QString, QChar > > priorities
02553                 = m_part->settings()->fallbackAccessKeysAssignments();
02554             for( QValueList< QPair< QString, QChar > >::ConstIterator it = priorities.begin();
02555                  it != priorities.end();
02556                  ++it ) {
02557                 if( text == (*it).first )
02558                     priority = 10;
02559             }
02560             AccessKeyData tmp = { element, text, url, priority };
02561             data.append( tmp );
02562         }
02563     }
02564 
02565     QValueList< QChar > keys;
02566     for( char c = 'A'; c <= 'Z'; ++c )
02567         keys << c;
02568     for( char c = '0'; c <= '9'; ++c )
02569         keys << c;
02570     for( NodeImpl* n = m_part->xmlDocImpl();
02571          n != NULL;
02572          n = n->traverseNextNode()) {
02573         if( n->isElementNode()) {
02574             ElementImpl* en = static_cast< ElementImpl* >( n );
02575             DOMString s = en->getAttribute( ATTR_ACCESSKEY );
02576             if( s.length() == 1 ) {
02577                 QChar c = s.string()[ 0 ].upper();
02578                 keys.remove( c ); // remove manually assigned accesskeys
02579             }
02580         }
02581     }
02582 
02583     QMap< ElementImpl*, QChar > ret;
02584     for( int priority = 10;
02585          priority >= 0;
02586          --priority ) {
02587         for( QValueList< AccessKeyData >::Iterator it = data.begin();
02588              it != data.end();
02589              ) {
02590             if( (*it).priority != priority ) {
02591                 ++it;
02592                 continue;
02593             }
02594             if( keys.isEmpty())
02595                 break;
02596             QString text = (*it).text;
02597             QChar key;
02598             if( key.isNull() && !text.isEmpty()) {
02599                 QValueList< QPair< QString, QChar > > priorities
02600                     = m_part->settings()->fallbackAccessKeysAssignments();
02601                 for( QValueList< QPair< QString, QChar > >::ConstIterator it = priorities.begin();
02602                      it != priorities.end();
02603                      ++it )
02604                     if( text == (*it).first && keys.contains( (*it).second )) {
02605                         key = (*it).second;
02606                         break;
02607                     }
02608             }
02609             // try first to select the first character as the accesskey,
02610             // then first character of the following words,
02611             // and then simply the first free character
02612             if( key.isNull() && !text.isEmpty()) {
02613                 QStringList words = QStringList::split( ' ', text );
02614                 for( QStringList::ConstIterator it = words.begin();
02615                      it != words.end();
02616                      ++it ) {
02617                     if( keys.contains( (*it)[ 0 ].upper())) {
02618                         key = (*it)[ 0 ].upper();
02619                         break;
02620                     }
02621                 }
02622             }
02623             if( key.isNull() && !text.isEmpty()) {
02624                 for( unsigned int i = 0;
02625                      i < text.length();
02626                      ++i ) {
02627                     if( keys.contains( text[ i ].upper())) {
02628                         key = text[ i ].upper();
02629                         break;
02630                     }
02631                 }
02632             }
02633             if( key.isNull())
02634                 key = keys.front();
02635             ret[ (*it).element ] = key;
02636             keys.remove( key );
02637             QString url = (*it).url;
02638             it = data.remove( it );
02639             // assign the same accesskey also to other elements pointing to the same url
02640             if( !url.isEmpty() && !url.startsWith( "javascript:", false )) {
02641                 for( QValueList< AccessKeyData >::Iterator it2 = data.begin();
02642                      it2 != data.end();
02643                      ) {                   
02644                     if( (*it2).url == url ) {
02645                         ret[ (*it2).element ] = key;
02646                         if( it == it2 )
02647                             ++it;
02648                         it2 = data.remove( it2 );
02649                     } else
02650                         ++it2;
02651                 }
02652             }
02653         }
02654     }
02655     return ret;
02656 }
02657 
02658 void KHTMLView::setMediaType( const QString &medium )
02659 {
02660     m_medium = medium;
02661 }
02662 
02663 QString KHTMLView::mediaType() const
02664 {
02665     return m_medium;
02666 }
02667 
02668 bool KHTMLView::pagedMode() const
02669 {
02670     return d->paged;
02671 }
02672 
02673 void KHTMLView::setWidgetVisible(RenderWidget* w, bool vis)
02674 {
02675     if (vis) {
02676         d->visibleWidgets.replace(w, w->widget());
02677     }
02678     else
02679         d->visibleWidgets.remove(w);
02680 }
02681 
02682 bool KHTMLView::needsFullRepaint() const
02683 {
02684     return d->needsFullRepaint;
02685 }
02686 
02687 void KHTMLView::print()
02688 {
02689     print( false );
02690 }
02691 
02692 void KHTMLView::print(bool quick)
02693 {
02694     if(!m_part->xmlDocImpl()) return;
02695     khtml::RenderCanvas *root = static_cast<khtml::RenderCanvas *>(m_part->xmlDocImpl()->renderer());
02696     if(!root) return;
02697 
02698     KPrinter *printer = new KPrinter(true, QPrinter::ScreenResolution);
02699     printer->addDialogPage(new KHTMLPrintSettings());
02700     QString docname = m_part->xmlDocImpl()->URL().prettyURL();
02701     if ( !docname.isEmpty() )
02702         docname = KStringHandler::csqueeze(docname, 80);
02703     if(quick || printer->setup(this, i18n("Print %1").arg(docname))) {
02704         viewport()->setCursor( waitCursor ); // only viewport(), no QApplication::, otherwise we get the busy cursor in kdeprint's dialogs
02705         // set up KPrinter
02706         printer->setFullPage(false);
02707         printer->setCreator(QString("KDE %1.%2.%3 HTML Library").arg(KDE_VERSION_MAJOR).arg(KDE_VERSION_MINOR).arg(KDE_VERSION_RELEASE));
02708         printer->setDocName(docname);
02709 
02710         QPainter *p = new QPainter;
02711         p->begin( printer );
02712         khtml::setPrintPainter( p );
02713 
02714         m_part->xmlDocImpl()->setPaintDevice( printer );
02715         QString oldMediaType = mediaType();
02716         setMediaType( "print" );
02717         // We ignore margin settings for html and body when printing
02718         // and use the default margins from the print-system
02719         // (In Qt 3.0.x the default margins are hardcoded in Qt)
02720         m_part->xmlDocImpl()->setPrintStyleSheet( printer->option("app-khtml-printfriendly") == "true" ?
02721                                                   "* { background-image: none !important;"
02722                                                   "    background-color: white !important;"
02723                                                   "    color: black !important; }"
02724                           "body { margin: 0px !important; }"
02725                           "html { margin: 0px !important; }" :
02726                           "body { margin: 0px !important; }"
02727                           "html { margin: 0px !important; }"
02728                           );
02729 
02730         QPaintDeviceMetrics metrics( printer );
02731 
02732         kdDebug(6000) << "printing: physical page width = " << metrics.width()
02733                       << " height = " << metrics.height() << endl;
02734         root->setStaticMode(true);
02735         root->setPagedMode(true);
02736         root->setWidth(metrics.width());
02737 //         root->setHeight(metrics.height());
02738         root->setPageTop(0);
02739         root->setPageBottom(0);
02740         d->paged = true;
02741 
02742         m_part->xmlDocImpl()->styleSelector()->computeFontSizes(&metrics, 100);
02743         m_part->xmlDocImpl()->updateStyleSelector();
02744         root->setPrintImages( printer->option("app-khtml-printimages") == "true");
02745         root->makePageBreakAvoidBlocks();
02746 
02747         root->setNeedsLayoutAndMinMaxRecalc();
02748         root->layout();
02749         khtml::RenderWidget::flushWidgetResizes(); // make sure widgets have their final size
02750 
02751         // check sizes ask for action.. (scale or clip)
02752 
02753         bool printHeader = (printer->option("app-khtml-printheader") == "true");
02754 
02755         int headerHeight = 0;
02756         QFont headerFont("Sans Serif", 8);
02757 
02758         QString headerLeft = KGlobal::locale()->formatDate(QDate::currentDate(),true);
02759         QString headerMid = docname;
02760         QString headerRight;
02761 
02762         if (printHeader)
02763         {
02764            p->setFont(headerFont);
02765            headerHeight = (p->fontMetrics().lineSpacing() * 3) / 2;
02766         }
02767 
02768         // ok. now print the pages.
02769         kdDebug(6000) << "printing: html page width = " << root->docWidth()
02770                       << " height = " << root->docHeight() << endl;
02771         kdDebug(6000) << "printing: margins left = " << printer->margins().width()
02772                       << " top = " << printer->margins().height() << endl;
02773         kdDebug(6000) << "printing: paper width = " << metrics.width()
02774                       << " height = " << metrics.height() << endl;
02775         // if the width is too large to fit on the paper we just scale
02776         // the whole thing.
02777         int pageWidth = metrics.width();
02778         int pageHeight = metrics.height();
02779         p->setClipRect(0,0, pageWidth, pageHeight);
02780 
02781         pageHeight -= headerHeight;
02782 
02783         bool scalePage = false;
02784         double scale = 0.0;
02785 #ifndef QT_NO_TRANSFORMATIONS
02786         if(root->docWidth() > metrics.width()) {
02787             scalePage = true;
02788             scale = ((double) metrics.width())/((double) root->docWidth());
02789             pageHeight = (int) (pageHeight/scale);
02790             pageWidth = (int) (pageWidth/scale);
02791             headerHeight = (int) (headerHeight/scale);
02792         }
02793 #endif
02794         kdDebug(6000) << "printing: scaled html width = " << pageWidth
02795                       << " height = " << pageHeight << endl;
02796 
02797         root->setHeight(pageHeight);
02798         root->setPageBottom(pageHeight);
02799         root->setNeedsLayout(true);
02800         root->layoutIfNeeded();
02801 //         m_part->slotDebugRenderTree();
02802 
02803         // Squeeze header to make it it on the page.
02804         if (printHeader)
02805         {
02806             int available_width = metrics.width() - 10 -
02807                 2 * kMax(p->boundingRect(0, 0, metrics.width(), p->fontMetrics().lineSpacing(), Qt::AlignLeft, headerLeft).width(),
02808                          p->boundingRect(0, 0, metrics.width(), p->fontMetrics().lineSpacing(), Qt::AlignLeft, headerRight).width());
02809             if (available_width < 150)
02810                available_width = 150;
02811             int mid_width;
02812             int squeeze = 120;
02813             do {
02814                 headerMid = KStringHandler::csqueeze(docname, squeeze);
02815                 mid_width = p->boundingRect(0, 0, metrics.width(), p->fontMetrics().lineSpacing(), Qt::AlignLeft, headerMid).width();
02816                 squeeze -= 10;
02817             } while (mid_width > available_width);
02818         }
02819 
02820         int top = 0;
02821         int bottom = 0;
02822         int page = 1;
02823         while(top < root->docHeight()) {
02824             if(top > 0) printer->newPage();
02825             p->setClipRect(0, 0, pageWidth, headerHeight, QPainter::CoordDevice);
02826             if (printHeader)
02827             {
02828                 int dy = p->fontMetrics().lineSpacing();
02829                 p->setPen(Qt::black);
02830                 p->setFont(headerFont);
02831 
02832                 headerRight = QString("#%1").arg(page);
02833 
02834                 p->drawText(0, 0, metrics.width(), dy, Qt::AlignLeft, headerLeft);
02835                 p->drawText(0, 0, metrics.width(), dy, Qt::AlignHCenter, headerMid);
02836                 p->drawText(0, 0, metrics.width(), dy, Qt::AlignRight, headerRight);
02837             }
02838 
02839 
02840 #ifndef QT_NO_TRANSFORMATIONS
02841             if (scalePage)
02842                 p->scale(scale, scale);
02843 #endif
02844 
02845             p->setClipRect(0, headerHeight, pageWidth, pageHeight, QPainter::CoordDevice);
02846             p->translate(0, headerHeight-top);
02847 
02848             bottom = top+pageHeight;
02849 
02850             root->setPageTop(top);
02851             root->setPageBottom(bottom);
02852             root->setPageNumber(page);
02853 
02854             root->layer()->paint(p, QRect(0, top, pageWidth, pageHeight));
02855 //             m_part->xmlDocImpl()->renderer()->layer()->paint(p, QRect(0, top, pageWidth, pageHeight));
02856 //             root->repaint();
02857 //             p->flush();
02858             kdDebug(6000) << "printed: page " << page <<" bottom At = " << bottom << endl;
02859 
02860             top = bottom;
02861             p->resetXForm();
02862             page++;
02863         }
02864 
02865         p->end();
02866         delete p;
02867 
02868         // and now reset the layout to the usual one...
02869         root->setPagedMode(false);
02870         root->setStaticMode(false);
02871         d->paged = false;
02872         khtml::setPrintPainter( 0 );
02873         setMediaType( oldMediaType );
02874         m_part->xmlDocImpl()->setPaintDevice( this );
02875         m_part->xmlDocImpl()->styleSelector()->computeFontSizes(m_part->xmlDocImpl()->paintDeviceMetrics(), m_part->zoomFactor());
02876         m_part->xmlDocImpl()->updateStyleSelector();
02877         viewport()->unsetCursor();
02878     }
02879     delete printer;
02880 }
02881 
02882 void KHTMLView::slotPaletteChanged()
02883 {
02884     if(!m_part->xmlDocImpl()) return;
02885     DOM::DocumentImpl *document = m_part->xmlDocImpl();
02886     if (!document->isHTMLDocument()) return;
02887     khtml::RenderCanvas *root = static_cast<khtml::RenderCanvas *>(document->renderer());
02888     if(!root) return;
02889     root->style()->resetPalette();
02890     NodeImpl *body = static_cast<HTMLDocumentImpl*>(document)->body();
02891     if(!body) return;
02892     body->setChanged(true);
02893     body->recalcStyle( NodeImpl::Force );
02894 }
02895 
02896 void KHTMLView::paint(QPainter *p, const QRect &rc, int yOff, bool *more)
02897 {
02898     if(!m_part->xmlDocImpl()) return;
02899     khtml::RenderCanvas *root = static_cast<khtml::RenderCanvas *>(m_part->xmlDocImpl()->renderer());
02900     if(!root) return;
02901 
02902     m_part->xmlDocImpl()->setPaintDevice(p->device());
02903     root->setPagedMode(true);
02904     root->setStaticMode(true);
02905     root->setWidth(rc.width());
02906 
02907     p->save();
02908     p->setClipRect(rc);
02909     p->translate(rc.left(), rc.top());
02910     double scale = ((double) rc.width()/(double) root->docWidth());
02911     int height = (int) ((double) rc.height() / scale);
02912 #ifndef QT_NO_TRANSFORMATIONS
02913     p->scale(scale, scale);
02914 #endif
02915     root->setPageTop(yOff);
02916     root->setPageBottom(yOff+height);
02917 
02918     root->layer()->paint(p, QRect(0, yOff, root->docWidth(), height));
02919     if (more)
02920         *more = yOff + height < root->docHeight();
02921     p->restore();
02922 
02923     root->setPagedMode(false);
02924     root->setStaticMode(false);
02925     m_part->xmlDocImpl()->setPaintDevice( this );
02926 }
02927 
02928 
02929 void KHTMLView::useSlowRepaints()
02930 {
02931     d->useSlowRepaints = true;
02932     setStaticBackground(true);
02933 }
02934 
02935 
02936 void KHTMLView::setVScrollBarMode ( ScrollBarMode mode )
02937 {
02938 #ifndef KHTML_NO_SCROLLBARS
02939     d->vmode = mode;
02940     QScrollView::setVScrollBarMode(mode);
02941 #else
02942     Q_UNUSED( mode );
02943 #endif
02944 }
02945 
02946 void KHTMLView::setHScrollBarMode ( ScrollBarMode mode )
02947 {
02948 #ifndef KHTML_NO_SCROLLBARS
02949     d->hmode = mode;
02950     QScrollView::setHScrollBarMode(mode);
02951 #else
02952     Q_UNUSED( mode );
02953 #endif
02954 }
02955 
02956 void KHTMLView::restoreScrollBar()
02957 {
02958     int ow = visibleWidth();
02959     QScrollView::setVScrollBarMode(d->vmode);
02960     if (visibleWidth() != ow)
02961         layout();
02962     d->prevScrollbarVisible = verticalScrollBar()->isVisible();
02963 }
02964 
02965 QStringList KHTMLView::formCompletionItems(const QString &name) const
02966 {
02967     if (!m_part->settings()->isFormCompletionEnabled())
02968         return QStringList();
02969     if (!d->formCompletions)
02970         d->formCompletions = new KSimpleConfig(locateLocal("data", "khtml/formcompletions"));
02971     return d->formCompletions->readListEntry(name);
02972 }
02973 
02974 void KHTMLView::clearCompletionHistory(const QString& name)
02975 {
02976     if (!d->formCompletions)
02977     {
02978         d->formCompletions = new KSimpleConfig(locateLocal("data", "khtml/formcompletions"));
02979     }
02980     d->formCompletions->writeEntry(name, "");
02981     d->formCompletions->sync();
02982 }
02983 
02984 void KHTMLView::addFormCompletionItem(const QString &name, const QString &value)
02985 {
02986     if (!m_part->settings()->isFormCompletionEnabled())
02987         return;
02988     // don't store values that are all numbers or just numbers with
02989     // dashes or spaces as those are likely credit card numbers or
02990     // something similar
02991     bool cc_number(true);
02992     for (unsigned int i = 0; i < value.length(); ++i)
02993     {
02994       QChar c(value[i]);
02995       if (!c.isNumber() && c != '-' && !c.isSpace())
02996       {
02997         cc_number = false;
02998         break;
02999       }
03000     }
03001     if (cc_number)
03002       return;
03003     QStringList items = formCompletionItems(name);
03004     if (!items.contains(value))
03005         items.prepend(value);
03006     while ((int)items.count() > m_part->settings()->maxFormCompletionItems())
03007         items.remove(items.fromLast());
03008     d->formCompletions->writeEntry(name, items);
03009 }
03010 
03011 void KHTMLView::addNonPasswordStorableSite(const QString& host)
03012 {
03013     if (!d->formCompletions) {
03014         d->formCompletions = new KSimpleConfig(locateLocal("data", "khtml/formcompletions"));
03015     }
03016 
03017     d->formCompletions->setGroup("NonPasswordStorableSites");
03018     QStringList sites = d->formCompletions->readListEntry("Sites");
03019     sites.append(host);
03020     d->formCompletions->writeEntry("Sites", sites);
03021     d->formCompletions->sync();
03022     d->formCompletions->setGroup(QString::null);//reset
03023 }
03024 
03025 bool KHTMLView::nonPasswordStorableSite(const QString& host) const
03026 {
03027     if (!d->formCompletions) {
03028         d->formCompletions = new KSimpleConfig(locateLocal("data", "khtml/formcompletions"));
03029     }
03030     d->formCompletions->setGroup("NonPasswordStorableSites");
03031     QStringList sites =  d->formCompletions->readListEntry("Sites");
03032     d->formCompletions->setGroup(QString::null);//reset
03033 
03034     return (sites.find(host) != sites.end());
03035 }
03036 
03037 // returns true if event should be swallowed
03038 bool KHTMLView::dispatchMouseEvent(int eventId, DOM::NodeImpl *targetNode,
03039                    DOM::NodeImpl *targetNodeNonShared, bool cancelable,
03040                    int detail,QMouseEvent *_mouse, bool setUnder,
03041                    int mouseEventType)
03042 {
03043     // if the target node is a text node, dispatch on the parent node - rdar://4196646 (and #76948)
03044     if (targetNode && targetNode->isTextNode())
03045         targetNode = targetNode->parentNode();
03046 
03047     if (d->underMouse)
03048     d->underMouse->deref();
03049     d->underMouse = targetNode;
03050     if (d->underMouse)
03051     d->underMouse->ref();
03052 
03053     if (d->underMouseNonShared)
03054     d->underMouseNonShared->deref();
03055     d->underMouseNonShared = targetNodeNonShared;
03056     if (d->underMouseNonShared)
03057     d->underMouseNonShared->ref();
03058 
03059     int exceptioncode = 0;
03060     int pageX = 0;
03061     int pageY = 0;
03062     viewportToContents(_mouse->x(), _mouse->y(), pageX, pageY);
03063     int clientX = pageX - contentsX();
03064     int clientY = pageY - contentsY();
03065     int screenX = _mouse->globalX();
03066     int screenY = _mouse->globalY();
03067     int button = -1;
03068     switch (_mouse->button()) {
03069     case LeftButton:
03070         button = 0;
03071         break;
03072     case MidButton:
03073         button = 1;
03074         break;
03075     case RightButton:
03076         button = 2;
03077         break;
03078     default:
03079         break;
03080     }
03081     if (d->accessKeysEnabled && d->accessKeysPreActivate && button!=-1)
03082         d->accessKeysPreActivate=false;
03083 
03084     bool ctrlKey = (_mouse->state() & ControlButton);
03085     bool altKey = (_mouse->state() & AltButton);
03086     bool shiftKey = (_mouse->state() & ShiftButton);
03087     bool metaKey = (_mouse->state() & MetaButton);
03088 
03089     // mouseout/mouseover
03090     if (setUnder && (d->prevMouseX != pageX || d->prevMouseY != pageY)) {
03091 
03092         // ### this code sucks. we should save the oldUnder instead of calculating
03093         // it again. calculating is expensive! (Dirk)
03094         NodeImpl *oldUnder = 0;
03095     if (d->prevMouseX >= 0 && d->prevMouseY >= 0) {
03096         NodeImpl::MouseEvent mev( _mouse->stateAfter(), static_cast<NodeImpl::MouseEventType>(mouseEventType));
03097         m_part->xmlDocImpl()->prepareMouseEvent( true, d->prevMouseX, d->prevMouseY, &mev );
03098         oldUnder = mev.innerNode.handle();
03099 
03100             if (oldUnder && oldUnder->isTextNode())
03101                 oldUnder = oldUnder->parentNode();
03102     }
03103 //  qDebug("oldunder=%p (%s), target=%p (%s) x/y=%d/%d", oldUnder, oldUnder ? oldUnder->renderer()->renderName() : 0, targetNode,  targetNode ? targetNode->renderer()->renderName() : 0, _mouse->x(), _mouse->y());
03104     if (oldUnder != targetNode) {
03105         // send mouseout event to the old node
03106         if (oldUnder){
03107         oldUnder->ref();
03108         MouseEventImpl *me = new MouseEventImpl(EventImpl::MOUSEOUT_EVENT,
03109                             true,true,m_part->xmlDocImpl()->defaultView(),
03110                             0,screenX,screenY,clientX,clientY,pageX, pageY,
03111                             ctrlKey,altKey,shiftKey,metaKey,
03112                             button,targetNode);
03113         me->ref();
03114         oldUnder->dispatchEvent(me,exceptioncode,true);
03115         me->deref();
03116         }
03117 
03118         // send mouseover event to the new node
03119         if (targetNode) {
03120         MouseEventImpl *me = new MouseEventImpl(EventImpl::MOUSEOVER_EVENT,
03121                             true,true,m_part->xmlDocImpl()->defaultView(),
03122                             0,screenX,screenY,clientX,clientY,pageX, pageY,
03123                             ctrlKey,altKey,shiftKey,metaKey,
03124                             button,oldUnder);
03125 
03126         me->ref();
03127         targetNode->dispatchEvent(me,exceptioncode,true);
03128         me->deref();
03129         }
03130 
03131             if (oldUnder)
03132                 oldUnder->deref();
03133         }
03134     }
03135 
03136     bool swallowEvent = false;
03137 
03138     if (targetNode) {
03139         // send the actual event
03140         bool dblclick = ( eventId == EventImpl::CLICK_EVENT &&
03141                           _mouse->type() == QEvent::MouseButtonDblClick );
03142         MouseEventImpl *me = new MouseEventImpl(static_cast<EventImpl::EventId>(eventId),
03143                         true,cancelable,m_part->xmlDocImpl()->defaultView(),
03144                         detail,screenX,screenY,clientX,clientY,pageX, pageY,
03145                         ctrlKey,altKey,shiftKey,metaKey,
03146                         button,0, _mouse, dblclick );
03147         me->ref();
03148         targetNode->dispatchEvent(me,exceptioncode,true);
03149     bool defaultHandled = me->defaultHandled();
03150         if (defaultHandled || me->defaultPrevented())
03151             swallowEvent = true;
03152         me->deref();
03153 
03154         if (eventId == EventImpl::MOUSEDOWN_EVENT) {
03155             // Focus should be shifted on mouse down, not on a click.  -dwh
03156             // Blur current focus node when a link/button is clicked; this
03157             // is expected by some sites that rely on onChange handlers running
03158             // from form fields before the button click is processed.
03159             DOM::NodeImpl* nodeImpl = targetNode;
03160             for ( ; nodeImpl && !nodeImpl->isFocusable(); nodeImpl = nodeImpl->parentNode());
03161             if (nodeImpl && nodeImpl->isMouseFocusable())
03162                 m_part->xmlDocImpl()->setFocusNode(nodeImpl);
03163             else if (!nodeImpl || !nodeImpl->focused())
03164                 m_part->xmlDocImpl()->setFocusNode(0);
03165         }
03166     }
03167 
03168     return swallowEvent;
03169 }
03170 
03171 void KHTMLView::setIgnoreWheelEvents( bool e )
03172 {
03173     d->ignoreWheelEvents = e;
03174 }
03175 
03176 #ifndef QT_NO_WHEELEVENT
03177 
03178 void KHTMLView::viewportWheelEvent(QWheelEvent* e)
03179 {
03180     if (d->accessKeysEnabled && d->accessKeysPreActivate) d->accessKeysPreActivate=false;
03181 
03182     if ( ( e->state() & ControlButton) == ControlButton )
03183     {
03184         emit zoomView( - e->delta() );
03185         e->accept();
03186     }
03187     else if (d->firstRelayout)
03188     {
03189         e->accept();
03190     }
03191     else if( (   (e->orientation() == Vertical &&
03192                    ((d->ignoreWheelEvents && !verticalScrollBar()->isVisible())
03193                      || e->delta() > 0 && contentsY() <= 0
03194                      || e->delta() < 0 && contentsY() >= contentsHeight() - visibleHeight()))
03195               ||
03196                  (e->orientation() == Horizontal &&
03197                     ((d->ignoreWheelEvents && !horizontalScrollBar()->isVisible())
03198                      || e->delta() > 0 && contentsX() <=0
03199                      || e->delta() < 0 && contentsX() >= contentsWidth() - visibleWidth())))
03200             && m_part->parentPart())
03201     {
03202         if ( m_part->parentPart()->view() )
03203             m_part->parentPart()->view()->wheelEvent( e );
03204         e->ignore();
03205     }
03206     else
03207     {
03208         d->scrollBarMoved = true;
03209         QScrollView::viewportWheelEvent( e );
03210 
03211         QMouseEvent *tempEvent = new QMouseEvent( QEvent::MouseMove, QPoint(-1,-1), QPoint(-1,-1), Qt::NoButton, e->state() );
03212         emit viewportMouseMoveEvent ( tempEvent );
03213         delete tempEvent;
03214     }
03215 
03216 }
03217 #endif
03218 
03219 void KHTMLView::dragEnterEvent( QDragEnterEvent* ev )
03220 {
03221     // Handle drops onto frames (#16820)
03222     // Drops on the main html part is handled by Konqueror (and shouldn't do anything
03223     // in e.g. kmail, so not handled here).
03224     if ( m_part->parentPart() )
03225     {
03226         QApplication::sendEvent(m_part->parentPart()->widget(), ev);
03227     return;
03228     }
03229     QScrollView::dragEnterEvent( ev );
03230 }
03231 
03232 void KHTMLView::dropEvent( QDropEvent *ev )
03233 {
03234     // Handle drops onto frames (#16820)
03235     // Drops on the main html part is handled by Konqueror (and shouldn't do anything
03236     // in e.g. kmail, so not handled here).
03237     if ( m_part->parentPart() )
03238     {
03239         QApplication::sendEvent(m_part->parentPart()->widget(), ev);
03240     return;
03241     }
03242     QScrollView::dropEvent( ev );
03243 }
03244 
03245 void KHTMLView::focusInEvent( QFocusEvent *e )
03246 {
03247 #ifndef KHTML_NO_TYPE_AHEAD_FIND
03248     m_part->enableFindAheadActions( true );
03249 #endif
03250     DOM::NodeImpl* fn = m_part->xmlDocImpl() ? m_part->xmlDocImpl()->focusNode() : 0;
03251     if (fn && fn->renderer() && fn->renderer()->isWidget() &&
03252         (e->reason() != QFocusEvent::Mouse) &&
03253         static_cast<khtml::RenderWidget*>(fn->renderer())->widget())
03254         static_cast<khtml::RenderWidget*>(fn->renderer())->widget()->setFocus();
03255 #ifndef KHTML_NO_CARET
03256     // Restart blink frequency timer if it has been killed, but only on
03257     // editable nodes
03258     if (d->m_caretViewContext &&
03259         d->m_caretViewContext->freqTimerId == -1 &&
03260         fn) {
03261         if (m_part->isCaretMode()
03262         || m_part->isEditable()
03263             || (fn && fn->renderer()
03264             && fn->renderer()->style()->userInput()
03265                 == UI_ENABLED)) {
03266             d->m_caretViewContext->freqTimerId = startTimer(500);
03267         d->m_caretViewContext->visible = true;
03268         }/*end if*/
03269     }/*end if*/
03270     showCaret();
03271 #endif // KHTML_NO_CARET
03272     QScrollView::focusInEvent( e );
03273 }
03274 
03275 void KHTMLView::focusOutEvent( QFocusEvent *e )
03276 {
03277     if(m_part) m_part->stopAutoScroll();
03278 
03279 #ifndef KHTML_NO_TYPE_AHEAD_FIND
03280     if(d->typeAheadActivated)
03281     {
03282         findTimeout();
03283     }
03284     m_part->enableFindAheadActions( false );
03285 #endif // KHTML_NO_TYPE_AHEAD_FIND
03286 
03287 #ifndef KHTML_NO_CARET
03288     if (d->m_caretViewContext) {
03289         switch (d->m_caretViewContext->displayNonFocused) {
03290     case KHTMLPart::CaretInvisible:
03291             hideCaret();
03292         break;
03293     case KHTMLPart::CaretVisible: {
03294         killTimer(d->m_caretViewContext->freqTimerId);
03295         d->m_caretViewContext->freqTimerId = -1;
03296             NodeImpl *caretNode = m_part->xmlDocImpl()->focusNode();
03297         if (!d->m_caretViewContext->visible && (m_part->isCaretMode()
03298         || m_part->isEditable()
03299             || (caretNode && caretNode->renderer()
03300             && caretNode->renderer()->style()->userInput()
03301                 == UI_ENABLED))) {
03302             d->m_caretViewContext->visible = true;
03303             showCaret(true);
03304         }/*end if*/
03305         break;
03306     }
03307     case KHTMLPart::CaretBlink:
03308         // simply leave as is
03309         break;
03310     }/*end switch*/
03311     }/*end if*/
03312 #endif // KHTML_NO_CARET
03313 
03314     if ( d->cursor_icon_widget )
03315         d->cursor_icon_widget->hide();
03316 
03317     QScrollView::focusOutEvent( e );
03318 }
03319 
03320 void KHTMLView::slotScrollBarMoved()
03321 {
03322     if ( !d->firstRelayout && !d->complete && m_part->xmlDocImpl() &&
03323           d->layoutSchedulingEnabled) {
03324         // contents scroll while we are not complete: we need to check our layout *now*
03325         khtml::RenderCanvas* root = static_cast<khtml::RenderCanvas *>( m_part->xmlDocImpl()->renderer() );
03326         if (root && root->needsLayout()) {
03327             unscheduleRelayout();
03328             layout();
03329         }
03330     }
03331     if (!d->scrollingSelf) {
03332         d->scrollBarMoved = true;
03333         d->contentsMoving = true;
03334         // ensure quick reset of contentsMoving flag
03335         scheduleRepaint(0, 0, 0, 0);
03336     }
03337     
03338     if (m_part->xmlDocImpl() && m_part->xmlDocImpl()->documentElement())
03339         m_part->xmlDocImpl()->documentElement()->dispatchHTMLEvent(EventImpl::SCROLL_EVENT, true, false);
03340 }
03341 
03342 void KHTMLView::timerEvent ( QTimerEvent *e )
03343 {
03344 //    kdDebug() << "timer event " << e->timerId() << endl;
03345     if ( e->timerId() == d->scrollTimerId ) {
03346         if( d->scrollSuspended )
03347             return;
03348         switch (d->scrollDirection) {
03349             case KHTMLViewPrivate::ScrollDown:
03350                 if (contentsY() + visibleHeight () >= contentsHeight())
03351                     d->newScrollTimer(this, 0);
03352                 else
03353                     scrollBy( 0, d->scrollBy );
03354                 break;
03355             case KHTMLViewPrivate::ScrollUp:
03356                 if (contentsY() <= 0)
03357                     d->newScrollTimer(this, 0);
03358                 else
03359                     scrollBy( 0, -d->scrollBy );
03360                 break;
03361             case KHTMLViewPrivate::ScrollRight:
03362                 if (contentsX() + visibleWidth () >= contentsWidth())
03363                     d->newScrollTimer(this, 0);
03364                 else
03365                     scrollBy( d->scrollBy, 0 );
03366                 break;
03367             case KHTMLViewPrivate::ScrollLeft:
03368                 if (contentsX() <= 0)
03369                     d->newScrollTimer(this, 0);
03370                 else
03371                     scrollBy( -d->scrollBy, 0 );
03372                 break;
03373         }
03374         return;
03375     }
03376     else if ( e->timerId() == d->layoutTimerId ) {
03377         d->dirtyLayout = true;
03378         layout();
03379         if (d->firstRelayout) {
03380             d->firstRelayout = false;
03381             verticalScrollBar()->setEnabled( true );
03382             horizontalScrollBar()->setEnabled( true );
03383         }
03384     }
03385 #ifndef KHTML_NO_CARET
03386     else if (d->m_caretViewContext
03387              && e->timerId() == d->m_caretViewContext->freqTimerId) {
03388         d->m_caretViewContext->visible = !d->m_caretViewContext->visible;
03389     if (d->m_caretViewContext->displayed) {
03390         updateContents(d->m_caretViewContext->x, d->m_caretViewContext->y,
03391             d->m_caretViewContext->width,
03392             d->m_caretViewContext->height);
03393     }/*end if*/
03394 //  if (d->m_caretViewContext->visible) cout << "|" << flush;
03395 //  else cout << "" << flush;
03396     return;
03397     }
03398 #endif
03399 
03400     d->contentsMoving = false;
03401     if( m_part->xmlDocImpl() ) {
03402     DOM::DocumentImpl *document = m_part->xmlDocImpl();
03403     khtml::RenderCanvas* root = static_cast<khtml::RenderCanvas *>(document->renderer());
03404 
03405     if ( root && root->needsLayout() ) {
03406         killTimer(d->repaintTimerId);
03407         d->repaintTimerId = 0;
03408         scheduleRelayout();
03409         return;
03410     }
03411     }
03412 
03413     setStaticBackground(d->useSlowRepaints);
03414 
03415 //        kdDebug() << "scheduled repaint "<< d->repaintTimerId  << endl;
03416     killTimer(d->repaintTimerId);
03417     d->repaintTimerId = 0;
03418 
03419     QRect updateRegion;
03420     QMemArray<QRect> rects = d->updateRegion.rects();
03421 
03422     d->updateRegion = QRegion();
03423 
03424     if ( rects.size() )
03425         updateRegion = rects[0];
03426 
03427     for ( unsigned i = 1; i < rects.size(); ++i ) {
03428         QRect newRegion = updateRegion.unite(rects[i]);
03429         if (2*newRegion.height() > 3*updateRegion.height() )
03430         {
03431             repaintContents( updateRegion );
03432             updateRegion = rects[i];
03433         }
03434         else
03435             updateRegion = newRegion;
03436     }
03437 
03438     if ( !updateRegion.isNull() )
03439         repaintContents( updateRegion );
03440 
03441     // As widgets can only be accurately positioned during painting, every layout might
03442     // dissociate a widget from its RenderWidget. E.g: if a RenderWidget was visible before layout, but the layout
03443     // pushed it out of the viewport, it will not be repainted, and consequently it's assocoated widget won't be repositioned!
03444     // Thus we need to check each supposedly 'visible' widget at the end of each layout, and remove it in case it's no more in sight.
03445 
03446     if (d->dirtyLayout && !d->visibleWidgets.isEmpty()) {
03447         QWidget* w;
03448         d->dirtyLayout = false;
03449 
03450         QRect visibleRect(contentsX(), contentsY(), visibleWidth(), visibleHeight());
03451         QPtrList<RenderWidget> toRemove;
03452         for (QPtrDictIterator<QWidget> it(d->visibleWidgets); it.current(); ++it) {
03453             int xp = 0, yp = 0;
03454             w = it.current();
03455             RenderWidget* rw = static_cast<RenderWidget*>( it.currentKey() );
03456             if (!rw->absolutePosition(xp, yp) ||
03457                 !visibleRect.intersects(QRect(xp, yp, w->width(), w->height())))
03458                 toRemove.append(rw);
03459         }
03460         for (RenderWidget* r = toRemove.first(); r; r = toRemove.next())
03461             if ( (w = d->visibleWidgets.take(r) ) )
03462                 addChild(w, 0, -500000);
03463     }
03464 
03465     emit repaintAccessKeys();
03466     if (d->emitCompletedAfterRepaint) {
03467         bool full = d->emitCompletedAfterRepaint == KHTMLViewPrivate::CSFull;
03468         d->emitCompletedAfterRepaint = KHTMLViewPrivate::CSNone;
03469         if ( full )
03470             emit m_part->completed();
03471         else
03472             emit m_part->completed(true);
03473     }
03474 }
03475 
03476 void KHTMLView::scheduleRelayout(khtml::RenderObject * /*clippedObj*/)
03477 {
03478     if (!d->layoutSchedulingEnabled || d->layoutTimerId)
03479         return;
03480 
03481     d->layoutTimerId = startTimer( m_part->xmlDocImpl() && m_part->xmlDocImpl()->parsing()
03482                              ? 1000 : 0 );
03483 }
03484 
03485 void KHTMLView::unscheduleRelayout()
03486 {
03487     if (!d->layoutTimerId)
03488         return;
03489 
03490     killTimer(d->layoutTimerId);
03491     d->layoutTimerId = 0;
03492 }
03493 
03494 void KHTMLView::unscheduleRepaint()
03495 {
03496     if (!d->repaintTimerId)
03497         return;
03498 
03499     killTimer(d->repaintTimerId);
03500     d->repaintTimerId = 0;
03501 }
03502 
03503 void KHTMLView::scheduleRepaint(int x, int y, int w, int h, bool asap)
03504 {
03505     bool parsing = !m_part->xmlDocImpl() || m_part->xmlDocImpl()->parsing();
03506 
03507 //     kdDebug() << "parsing " << parsing << endl;
03508 //     kdDebug() << "complete " << d->complete << endl;
03509 
03510     int time = parsing ? 300 : (!asap ? ( !d->complete ? 100 : 20 ) : 0);
03511 
03512 #ifdef DEBUG_FLICKER
03513     QPainter p;
03514     p.begin( viewport() );
03515 
03516     int vx, vy;
03517     contentsToViewport( x, y, vx, vy );
03518     p.fillRect( vx, vy, w, h, Qt::red );
03519     p.end();
03520 #endif
03521 
03522     d->updateRegion = d->updateRegion.unite(QRect(x,y,w,h));
03523 
03524     if (asap && !parsing)
03525         unscheduleRepaint();
03526 
03527     if ( !d->repaintTimerId )
03528         d->repaintTimerId = startTimer( time );
03529 
03530 //     kdDebug() << "starting timer " << time << endl;
03531 }
03532 
03533 void KHTMLView::complete( bool pendingAction )
03534 {
03535 //     kdDebug() << "KHTMLView::complete()" << endl;
03536 
03537     d->complete = true;
03538 
03539     // is there a relayout pending?
03540     if (d->layoutTimerId)
03541     {
03542 //         kdDebug() << "requesting relayout now" << endl;
03543         // do it now
03544         killTimer(d->layoutTimerId);
03545         d->layoutTimerId = startTimer( 0 );
03546         d->emitCompletedAfterRepaint = pendingAction ?
03547             KHTMLViewPrivate::CSActionPending : KHTMLViewPrivate::CSFull;
03548     }
03549 
03550     // is there a repaint pending?
03551     if (d->repaintTimerId)
03552     {
03553 //         kdDebug() << "requesting repaint now" << endl;
03554         // do it now
03555         killTimer(d->repaintTimerId);
03556         d->repaintTimerId = startTimer( 20 );
03557         d->emitCompletedAfterRepaint = pendingAction ?
03558             KHTMLViewPrivate::CSActionPending : KHTMLViewPrivate::CSFull;
03559     }
03560 
03561     if (!d->emitCompletedAfterRepaint)
03562     {
03563         if (!pendingAction)
03564         emit m_part->completed();
03565         else
03566             emit m_part->completed(true);
03567     }
03568 
03569 }
03570 
03571 void KHTMLView::slotMouseScrollTimer()
03572 {
03573     scrollBy( d->m_mouseScroll_byX, d->m_mouseScroll_byY );
03574 }
03575 
03576 #ifndef KHTML_NO_CARET
03577 
03578 // ### the dependencies on static functions are a nightmare. just be
03579 // hacky and include the implementation here. Clean me up, please.
03580 
03581 #include "khtml_caret.cpp"
03582 
03583 void KHTMLView::initCaret(bool keepSelection)
03584 {
03585 #if DEBUG_CARETMODE > 0
03586   kdDebug(6200) << "begin initCaret" << endl;
03587 #endif
03588   // save caretMoved state as moveCaretTo changes it
03589   if (m_part->xmlDocImpl()) {
03590 #if 0
03591     ElementImpl *listitem = m_part->xmlDocImpl()->getElementById("__test_element__");
03592     if (listitem) dumpLineBoxes(static_cast<RenderFlow *>(listitem->renderer()));
03593 #endif
03594     d->caretViewContext();
03595     bool cmoved = d->m_caretViewContext->caretMoved;
03596     if (m_part->d->caretNode().isNull()) {
03597       // set to document, position will be sanitized anyway
03598       m_part->d->caretNode() = m_part->document();
03599       m_part->d->caretOffset() = 0L;
03600       // This sanity check is necessary for the not so unlikely case that
03601       // setEditable or setCaretMode is called before any render objects have
03602       // been created.
03603       if (!m_part->d->caretNode().handle()->renderer()) return;
03604     }/*end if*/
03605 //    kdDebug(6200) << "d->m_selectionStart " << m_part->d->m_selectionStart.handle()
03606 //          << " d->m_selectionEnd " << m_part->d->m_selectionEnd.handle() << endl;
03607     // ### does not repaint the selection on keepSelection!=false
03608     moveCaretTo(m_part->d->caretNode().handle(), m_part->d->caretOffset(), !keepSelection);
03609 //    kdDebug(6200) << "d->m_selectionStart " << m_part->d->m_selectionStart.handle()
03610 //          << " d->m_selectionEnd " << m_part->d->m_selectionEnd.handle() << endl;
03611     d->m_caretViewContext->caretMoved = cmoved;
03612   }/*end if*/
03613 #if DEBUG_CARETMODE > 0
03614   kdDebug(6200) << "end initCaret" << endl;
03615 #endif
03616 }
03617 
03618 bool KHTMLView::caretOverrides() const
03619 {
03620     bool cm = m_part->isCaretMode();
03621     bool dm = m_part->isEditable();
03622     return cm && !dm ? false
03623         : (dm || m_part->d->caretNode().handle()->contentEditable())
03624       && d->editorContext()->override;
03625 }
03626 
03627 void KHTMLView::ensureNodeHasFocus(NodeImpl *node)
03628 {
03629   if (m_part->isCaretMode() || m_part->isEditable()) return;
03630   if (node->focused()) return;
03631 
03632   // Find first ancestor whose "user-input" is "enabled"
03633   NodeImpl *firstAncestor = 0;
03634   while (node) {
03635     if (node->renderer()
03636        && node->renderer()->style()->userInput() != UI_ENABLED)
03637       break;
03638     firstAncestor = node;
03639     node = node->parentNode();
03640   }/*wend*/
03641 
03642   if (!node) firstAncestor = 0;
03643 
03644   DocumentImpl *doc = m_part->xmlDocImpl();
03645   // ensure that embedded widgets don't lose their focus
03646   if (!firstAncestor && doc->focusNode() && doc->focusNode()->renderer()
03647     && doc->focusNode()->renderer()->isWidget())
03648     return;
03649 
03650   // Set focus node on the document
03651 #if DEBUG_CARETMODE > 1
03652   kdDebug(6200) << k_funcinfo << "firstAncestor " << firstAncestor << ": "
03653     << (firstAncestor ? firstAncestor->nodeName().string() : QString::null) << endl;
03654 #endif
03655   doc->setFocusNode(firstAncestor);
03656   emit m_part->nodeActivated(Node(firstAncestor));
03657 }
03658 
03659 void KHTMLView::recalcAndStoreCaretPos(CaretBox *hintBox)
03660 {
03661     if (!m_part || m_part->d->caretNode().isNull()) return;
03662     d->caretViewContext();
03663     NodeImpl *caretNode = m_part->d->caretNode().handle();
03664 #if DEBUG_CARETMODE > 0
03665   kdDebug(6200) << "recalcAndStoreCaretPos: caretNode=" << caretNode << (caretNode ? " "+caretNode->nodeName().string() : QString::null) << " r@" << caretNode->renderer() << (caretNode->renderer() && caretNode->renderer()->isText() ? " \"" + QConstString(static_cast<RenderText *>(caretNode->renderer())->str->s, kMin(static_cast<RenderText *>(caretNode->renderer())->str->l, 15u)).string() + "\"" : QString::null) << endl;
03666 #endif
03667     caretNode->getCaret(m_part->d->caretOffset(), caretOverrides(),
03668             d->m_caretViewContext->x, d->m_caretViewContext->y,
03669         d->m_caretViewContext->width,
03670         d->m_caretViewContext->height);
03671 
03672     if (hintBox && d->m_caretViewContext->x == -1) {
03673 #if DEBUG_CARETMODE > 1
03674         kdDebug(6200) << "using hint inline box coordinates" << endl;
03675 #endif
03676     RenderObject *r = caretNode->renderer();
03677     const QFontMetrics &fm = r->style()->fontMetrics();
03678         int absx, absy;
03679     r->containingBlock()->absolutePosition(absx, absy,
03680                         false); // ### what about fixed?
03681     d->m_caretViewContext->x = absx + hintBox->xPos();
03682     d->m_caretViewContext->y = absy + hintBox->yPos();
03683 //              + hintBox->baseline() - fm.ascent();
03684     d->m_caretViewContext->width = 1;
03685     // ### firstline not regarded. But I think it can be safely neglected
03686     // as hint boxes are only used for empty lines.
03687     d->m_caretViewContext->height = fm.height();
03688     }/*end if*/
03689 
03690 #if DEBUG_CARETMODE > 4
03691 //    kdDebug(6200) << "freqTimerId: "<<d->m_caretViewContext->freqTimerId<<endl;
03692 #endif
03693 #if DEBUG_CARETMODE > 0
03694     kdDebug(6200) << "caret: ofs="<<m_part->d->caretOffset()<<" "
03695         <<" x="<<d->m_caretViewContext->x<<" y="<<d->m_caretViewContext->y
03696     <<" h="<<d->m_caretViewContext->height<<endl;
03697 #endif
03698 }
03699 
03700 void KHTMLView::caretOn()
03701 {
03702     if (d->m_caretViewContext) {
03703         killTimer(d->m_caretViewContext->freqTimerId);
03704 
03705     if (hasFocus() || d->m_caretViewContext->displayNonFocused
03706             == KHTMLPart::CaretBlink) {
03707             d->m_caretViewContext->freqTimerId = startTimer(500);
03708     } else {
03709         d->m_caretViewContext->freqTimerId = -1;
03710     }/*end if*/
03711 
03712         d->m_caretViewContext->visible = true;
03713         if ((d->m_caretViewContext->displayed = (hasFocus()
03714         || d->m_caretViewContext->displayNonFocused
03715             != KHTMLPart::CaretInvisible))) {
03716         updateContents(d->m_caretViewContext->x, d->m_caretViewContext->y,
03717                 d->m_caretViewContext->width,
03718             d->m_caretViewContext->height);
03719     }/*end if*/
03720 //        kdDebug(6200) << "caret on" << endl;
03721     }/*end if*/
03722 }
03723 
03724 void KHTMLView::caretOff()
03725 {
03726     if (d->m_caretViewContext) {
03727         killTimer(d->m_caretViewContext->freqTimerId);
03728     d->m_caretViewContext->freqTimerId = -1;
03729         d->m_caretViewContext->displayed = false;
03730         if (d->m_caretViewContext->visible) {
03731             d->m_caretViewContext->visible = false;
03732         updateContents(d->m_caretViewContext->x, d->m_caretViewContext->y,
03733                 d->m_caretViewContext->width,
03734                 d->m_caretViewContext->height);
03735     }/*end if*/
03736 //        kdDebug(6200) << "caret off" << endl;
03737     }/*end if*/
03738 }
03739 
03740 void KHTMLView::showCaret(bool forceRepaint)
03741 {
03742     if (d->m_caretViewContext) {
03743         d->m_caretViewContext->displayed = true;
03744         if (d->m_caretViewContext->visible) {
03745         if (!forceRepaint) {
03746             updateContents(d->m_caretViewContext->x, d->m_caretViewContext->y,
03747                 d->m_caretViewContext->width,
03748             d->m_caretViewContext->height);
03749             } else {
03750             repaintContents(d->m_caretViewContext->x, d->m_caretViewContext->y,
03751                 d->m_caretViewContext->width,
03752                 d->m_caretViewContext->height);
03753         }/*end if*/
03754     }/*end if*/
03755 //        kdDebug(6200) << "caret shown" << endl;
03756     }/*end if*/
03757 }
03758 
03759 bool KHTMLView::foldSelectionToCaret(NodeImpl *startNode, long startOffset,
03760                     NodeImpl *endNode, long endOffset)
03761 {
03762   m_part->d->m_selectionStart = m_part->d->m_selectionEnd = m_part->d->caretNode();
03763   m_part->d->m_startOffset = m_part->d->m_endOffset = m_part->d->caretOffset();
03764   m_part->d->m_extendAtEnd = true;
03765 
03766   bool folded = startNode != endNode || startOffset != endOffset;
03767 
03768   // Only clear the selection if there has been one.
03769   if (folded) {
03770     m_part->xmlDocImpl()->clearSelection();
03771   }/*end if*/
03772 
03773   return folded;
03774 }
03775 
03776 void KHTMLView::hideCaret()
03777 {
03778     if (d->m_caretViewContext) {
03779         if (d->m_caretViewContext->visible) {
03780 //            kdDebug(6200) << "redraw caret hidden" << endl;
03781         d->m_caretViewContext->visible = false;
03782         // force repaint, otherwise the event won't be handled
03783         // before the focus leaves the window
03784         repaintContents(d->m_caretViewContext->x, d->m_caretViewContext->y,
03785                 d->m_caretViewContext->width,
03786                 d->m_caretViewContext->height);
03787         d->m_caretViewContext->visible = true;
03788     }/*end if*/
03789         d->m_caretViewContext->displayed = false;
03790 //        kdDebug(6200) << "caret hidden" << endl;
03791     }/*end if*/
03792 }
03793 
03794 int KHTMLView::caretDisplayPolicyNonFocused() const
03795 {
03796   if (d->m_caretViewContext)
03797     return d->m_caretViewContext->displayNonFocused;
03798   else
03799     return KHTMLPart::CaretInvisible;
03800 }
03801 
03802 void KHTMLView::setCaretDisplayPolicyNonFocused(int policy)
03803 {
03804   d->caretViewContext();
03805 //  int old = d->m_caretViewContext->displayNonFocused;
03806   d->m_caretViewContext->displayNonFocused = (KHTMLPart::CaretDisplayPolicy)policy;
03807 
03808   // make change immediately take effect if not focused
03809   if (!hasFocus()) {
03810     switch (d->m_caretViewContext->displayNonFocused) {
03811       case KHTMLPart::CaretInvisible:
03812         hideCaret();
03813     break;
03814       case KHTMLPart::CaretBlink:
03815     if (d->m_caretViewContext->freqTimerId != -1) break;
03816     d->m_caretViewContext->freqTimerId = startTimer(500);
03817     // fall through
03818       case KHTMLPart::CaretVisible:
03819         d->m_caretViewContext->displayed = true;
03820         showCaret();
03821     break;
03822     }/*end switch*/
03823   }/*end if*/
03824 }
03825 
03826 bool KHTMLView::placeCaret(CaretBox *hintBox)
03827 {
03828   CaretViewContext *cv = d->caretViewContext();
03829   caretOff();
03830   NodeImpl *caretNode = m_part->d->caretNode().handle();
03831   // ### why is it sometimes null?
03832   if (!caretNode || !caretNode->renderer()) return false;
03833   ensureNodeHasFocus(caretNode);
03834   if (m_part->isCaretMode() || m_part->isEditable()
03835      || caretNode->renderer()->style()->userInput() == UI_ENABLED) {
03836     recalcAndStoreCaretPos(hintBox);
03837 
03838     cv->origX = cv->x;
03839 
03840     caretOn();
03841     return true;
03842   }/*end if*/
03843   return false;
03844 }
03845 
03846 void KHTMLView::ensureCaretVisible()
03847 {
03848   CaretViewContext *cv = d->m_caretViewContext;
03849   if (!cv) return;
03850   ensureVisible(cv->x, cv->y, cv->width, cv->height);
03851   d->scrollBarMoved = false;
03852 }
03853 
03854 bool KHTMLView::extendSelection(NodeImpl *oldStartSel, long oldStartOfs,
03855                 NodeImpl *oldEndSel, long oldEndOfs)
03856 {
03857   bool changed = false;
03858   if (m_part->d->m_selectionStart == m_part->d->m_selectionEnd
03859       && m_part->d->m_startOffset == m_part->d->m_endOffset) {
03860     changed = foldSelectionToCaret(oldStartSel, oldStartOfs, oldEndSel, oldEndOfs);
03861     m_part->d->m_extendAtEnd = true;
03862   } else do {
03863     changed = m_part->d->m_selectionStart.handle() != oldStartSel
03864             || m_part->d->m_startOffset != oldStartOfs
03865         || m_part->d->m_selectionEnd.handle() != oldEndSel
03866         || m_part->d->m_endOffset != oldEndOfs;
03867     if (!changed) break;
03868 
03869     // determine start position -- caret position is always at end.
03870     NodeImpl *startNode;
03871     long startOffset;
03872     if (m_part->d->m_extendAtEnd) {
03873       startNode = m_part->d->m_selectionStart.handle();
03874       startOffset = m_part->d->m_startOffset;
03875     } else {
03876       startNode = m_part->d->m_selectionEnd.handle();
03877       startOffset = m_part->d->m_endOffset;
03878       m_part->d->m_selectionEnd = m_part->d->m_selectionStart;
03879       m_part->d->m_endOffset = m_part->d->m_startOffset;
03880       m_part->d->m_extendAtEnd = true;
03881     }/*end if*/
03882 
03883     bool swapNeeded = false;
03884     if (!m_part->d->m_selectionEnd.isNull() && startNode) {
03885       swapNeeded = RangeImpl::compareBoundaryPoints(startNode, startOffset,
03886                 m_part->d->m_selectionEnd.handle(),
03887             m_part->d->m_endOffset) >= 0;
03888     }/*end if*/
03889 
03890     m_part->d->m_selectionStart = startNode;
03891     m_part->d->m_startOffset = startOffset;
03892 
03893     if (swapNeeded) {
03894       m_part->xmlDocImpl()->setSelection(m_part->d->m_selectionEnd.handle(),
03895         m_part->d->m_endOffset, m_part->d->m_selectionStart.handle(),
03896         m_part->d->m_startOffset);
03897     } else {
03898       m_part->xmlDocImpl()->setSelection(m_part->d->m_selectionStart.handle(),
03899         m_part->d->m_startOffset, m_part->d->m_selectionEnd.handle(),
03900         m_part->d->m_endOffset);
03901     }/*end if*/
03902   } while(false);/*end if*/
03903   return changed;
03904 }
03905 
03906 void KHTMLView::updateSelection(NodeImpl *oldStartSel, long oldStartOfs,
03907                 NodeImpl *oldEndSel, long oldEndOfs)
03908 {
03909   if (m_part->d->m_selectionStart == m_part->d->m_selectionEnd
03910       && m_part->d->m_startOffset == m_part->d->m_endOffset) {
03911     if (foldSelectionToCaret(oldStartSel, oldStartOfs, oldEndSel, oldEndOfs)) {
03912       m_part->emitSelectionChanged();
03913     }/*end if*/
03914     m_part->d->m_extendAtEnd = true;
03915   } else {
03916     // check if the extending end has passed the immobile end
03917     if (!m_part->d->m_selectionEnd.isNull() && !m_part->d->m_selectionEnd.isNull()) {
03918       bool swapNeeded = RangeImpl::compareBoundaryPoints(
03919                 m_part->d->m_selectionStart.handle(), m_part->d->m_startOffset,
03920             m_part->d->m_selectionEnd.handle(), m_part->d->m_endOffset) >= 0;
03921       if (swapNeeded) {
03922         DOM::Node tmpNode = m_part->d->m_selectionStart;
03923         long tmpOffset = m_part->d->m_startOffset;
03924         m_part->d->m_selectionStart = m_part->d->m_selectionEnd;
03925         m_part->d->m_startOffset = m_part->d->m_endOffset;
03926         m_part->d->m_selectionEnd = tmpNode;
03927         m_part->d->m_endOffset = tmpOffset;
03928         m_part->d->m_startBeforeEnd = true;
03929         m_part->d->m_extendAtEnd = !m_part->d->m_extendAtEnd;
03930       }/*end if*/
03931     }/*end if*/
03932 
03933     m_part->xmlDocImpl()->setSelection(m_part->d->m_selectionStart.handle(),
03934         m_part->d->m_startOffset, m_part->d->m_selectionEnd.handle(),
03935         m_part->d->m_endOffset);
03936     m_part->emitSelectionChanged();
03937   }/*end if*/
03938 }
03939 
03940 void KHTMLView::caretKeyPressEvent(QKeyEvent *_ke)
03941 {
03942   NodeImpl *oldStartSel = m_part->d->m_selectionStart.handle();
03943   long oldStartOfs = m_part->d->m_startOffset;
03944   NodeImpl *oldEndSel = m_part->d->m_selectionEnd.handle();
03945   long oldEndOfs = m_part->d->m_endOffset;
03946 
03947   NodeImpl *oldCaretNode = m_part->d->caretNode().handle();
03948   long oldOffset = m_part->d->caretOffset();
03949 
03950   bool ctrl = _ke->state() & ControlButton;
03951 
03952 // FIXME: this is that widely indented because I will write ifs around it.
03953       switch(_ke->key()) {
03954         case Key_Space:
03955           break;
03956 
03957         case Key_Down:
03958       moveCaretNextLine(1);
03959           break;
03960 
03961         case Key_Up:
03962       moveCaretPrevLine(1);
03963           break;
03964 
03965         case Key_Left:
03966       moveCaretBy(false, ctrl ? CaretByWord : CaretByCharacter, 1);
03967           break;
03968 
03969         case Key_Right:
03970       moveCaretBy(true, ctrl ? CaretByWord : CaretByCharacter, 1);
03971           break;
03972 
03973         case Key_Next:
03974       moveCaretNextPage();
03975           break;
03976 
03977         case Key_Prior:
03978       moveCaretPrevPage();
03979           break;
03980 
03981         case Key_Home:
03982       if (ctrl)
03983         moveCaretToDocumentBoundary(false);
03984       else
03985         moveCaretToLineBegin();
03986           break;
03987 
03988         case Key_End:
03989       if (ctrl)
03990         moveCaretToDocumentBoundary(true);
03991       else
03992         moveCaretToLineEnd();
03993           break;
03994 
03995       }/*end switch*/
03996 
03997   if ((m_part->d->caretNode().handle() != oldCaretNode
03998     || m_part->d->caretOffset() != oldOffset)
03999     // node should never be null, but faulty conditions may cause it to be
04000     && !m_part->d->caretNode().isNull()) {
04001 
04002     d->m_caretViewContext->caretMoved = true;
04003 
04004     if (_ke->state() & ShiftButton) {   // extend selection
04005       updateSelection(oldStartSel, oldStartOfs, oldEndSel, oldEndOfs);
04006     } else {            // clear any selection
04007       if (foldSelectionToCaret(oldStartSel, oldStartOfs, oldEndSel, oldEndOfs))
04008         m_part->emitSelectionChanged();
04009     }/*end if*/
04010 
04011     m_part->emitCaretPositionChanged(m_part->d->caretNode(), m_part->d->caretOffset());
04012   }/*end if*/
04013 
04014   _ke->accept();
04015 }
04016 
04017 bool KHTMLView::moveCaretTo(NodeImpl *node, long offset, bool clearSel)
04018 {
04019   if (!node) return false;
04020   ElementImpl *baseElem = determineBaseElement(node);
04021   RenderFlow *base = static_cast<RenderFlow *>(baseElem ? baseElem->renderer() : 0);
04022   if (!node) return false;
04023 
04024   // need to find out the node's inline box. If there is none, this function
04025   // will snap to the next node that has one. This is necessary to make the
04026   // caret visible in any case.
04027   CaretBoxLineDeleter cblDeleter;
04028 //   RenderBlock *cb;
04029   long r_ofs;
04030   CaretBoxIterator cbit;
04031   CaretBoxLine *cbl = findCaretBoxLine(node, offset, &cblDeleter, base, r_ofs, cbit);
04032   if(!cbl) {
04033       kdWarning() << "KHTMLView::moveCaretTo - findCaretBoxLine() returns NULL" << endl;
04034       return false;
04035   }
04036 
04037 #if DEBUG_CARETMODE > 3
04038   if (cbl) kdDebug(6200) << cbl->information() << endl;
04039 #endif
04040   CaretBox *box = *cbit;
04041   if (cbit != cbl->end() && box->object() != node->renderer()) {
04042     if (box->object()->element()) {
04043       mapRenderPosToDOMPos(box->object(), r_ofs, box->isOutside(),
04044                 box->isOutsideEnd(), node, offset);
04045       //if (!outside) offset = node->minOffset();
04046 #if DEBUG_CARETMODE > 1
04047       kdDebug(6200) << "set new node " << node->nodeName().string() << "@" << node << endl;
04048 #endif
04049     } else {    // box has no associated element -> do not use
04050       // this case should actually never happen.
04051       box = 0;
04052       kdError(6200) << "Box contains no node! Crash imminent" << endl;
04053     }/*end if*/
04054   }
04055 
04056   NodeImpl *oldStartSel = m_part->d->m_selectionStart.handle();
04057   long oldStartOfs = m_part->d->m_startOffset;
04058   NodeImpl *oldEndSel = m_part->d->m_selectionEnd.handle();
04059   long oldEndOfs = m_part->d->m_endOffset;
04060 
04061   // test for position change
04062   bool posChanged = m_part->d->caretNode().handle() != node
04063         || m_part->d->caretOffset() != offset;
04064   bool selChanged = false;
04065 
04066   m_part->d->caretNode() = node;
04067   m_part->d->caretOffset() = offset;
04068   if (clearSel || !oldStartSel || !oldEndSel) {
04069     selChanged = foldSelectionToCaret(oldStartSel, oldStartOfs, oldEndSel, oldEndOfs);
04070   } else {
04071     //kdDebug(6200) << "moveToCaret: extendSelection: m_extendAtEnd " << m_part->d->m_extendAtEnd << endl;
04072     //kdDebug(6200) << "selection: start(" << m_part->d->m_selectionStart.handle() << "," << m_part->d->m_startOffset << "), end(" << m_part->d->m_selectionEnd.handle() << "," << m_part->d->m_endOffset << "), caret(" << m_part->d->caretNode().handle() << "," << m_part->d->caretOffset() << ")" << endl;
04073     selChanged = extendSelection(oldStartSel, oldStartOfs, oldEndSel, oldEndOfs);
04074     //kdDebug(6200) << "after extendSelection: m_extendAtEnd " << m_part->d->m_extendAtEnd << endl;
04075     //kdDebug(6200) << "selection: start(" << m_part->d->m_selectionStart.handle() << "," << m_part->d->m_startOffset << "), end(" << m_part->d->m_selectionEnd.handle() << "," << m_part->d->m_endOffset << "), caret(" << m_part->d->caretNode().handle() << "," << m_part->d->caretOffset() << ")" << endl;
04076   }/*end if*/
04077 
04078   d->caretViewContext()->caretMoved = true;
04079 
04080   bool visible_caret = placeCaret(box);
04081 
04082   // FIXME: if the old position was !visible_caret, and the new position is
04083   // also, then two caretPositionChanged signals with a null Node are
04084   // emitted in series.
04085   if (posChanged) {
04086     m_part->emitCaretPositionChanged(visible_caret ? node : 0, offset);
04087   }/*end if*/
04088 
04089   return selChanged;
04090 }
04091 
04092 void KHTMLView::moveCaretByLine(bool next, int count)
04093 {
04094   Node &caretNodeRef = m_part->d->caretNode();
04095   if (caretNodeRef.isNull()) return;
04096 
04097   NodeImpl *caretNode = caretNodeRef.handle();
04098 //  kdDebug(6200) << ": caretNode=" << caretNode << endl;
04099   long offset = m_part->d->caretOffset();
04100 
04101   CaretViewContext *cv = d->caretViewContext();
04102 
04103   ElementImpl *baseElem = determineBaseElement(caretNode);
04104   LinearDocument ld(m_part, caretNode, offset, LeafsOnly, baseElem);
04105 
04106   ErgonomicEditableLineIterator it(ld.current(), cv->origX);
04107 
04108   // move count lines vertically
04109   while (count > 0 && it != ld.end() && it != ld.preBegin()) {
04110     count--;
04111     if (next) ++it; else --it;
04112   }/*wend*/
04113 
04114   // Nothing? Then leave everything as is.
04115   if (it == ld.end() || it == ld.preBegin()) return;
04116 
04117   int x, absx, absy;
04118   CaretBox *caretBox = nearestCaretBox(it, d->m_caretViewContext, x, absx, absy);
04119 
04120   placeCaretOnLine(caretBox, x, absx, absy);
04121 }
04122 
04123 void KHTMLView::placeCaretOnLine(CaretBox *caretBox, int x, int absx, int absy)
04124 {
04125   // paranoia sanity check
04126   if (!caretBox) return;
04127 
04128   RenderObject *caretRender = caretBox->object();
04129 
04130 #if DEBUG_CARETMODE > 0
04131   kdDebug(6200) << "got valid caretBox " << caretBox << endl;
04132   kdDebug(6200) << "xPos: " << caretBox->xPos() << " yPos: " << caretBox->yPos()
04133         << " width: " << caretBox->width() << " height: " << caretBox->height() << endl;
04134   InlineTextBox *tb = static_cast<InlineTextBox *>(caretBox->inlineBox());
04135   if (caretBox->isInlineTextBox()) { kdDebug(6200) << "contains \"" << QString(static_cast<RenderText *>(tb->object())->str->s + tb->m_start, tb->m_len) << "\"" << endl;}
04136 #endif
04137   // inquire height of caret
04138   int caretHeight = caretBox->height();
04139   bool isText = caretBox->isInlineTextBox();
04140   int yOfs = 0;     // y-offset for text nodes
04141   if (isText) {
04142     // text boxes need extrawurst
04143     RenderText *t = static_cast<RenderText *>(caretRender);
04144     const QFontMetrics &fm = t->metrics(caretBox->inlineBox()->m_firstLine);
04145     caretHeight = fm.height();
04146     yOfs = caretBox->inlineBox()->baseline() - fm.ascent();
04147   }/*end if*/
04148 
04149   caretOff();
04150 
04151   // set new caret node
04152   NodeImpl *caretNode;
04153   long &offset = m_part->d->caretOffset();
04154   mapRenderPosToDOMPos(caretRender, offset, caretBox->isOutside(),
04155         caretBox->isOutsideEnd(), caretNode, offset);
04156 
04157   // set all variables not needing special treatment
04158   d->m_caretViewContext->y = caretBox->yPos() + yOfs;
04159   d->m_caretViewContext->height = caretHeight;
04160   d->m_caretViewContext->width = 1; // FIXME: regard override
04161 
04162   int xPos = caretBox->xPos();
04163   int caretBoxWidth = caretBox->width();
04164   d->m_caretViewContext->x = xPos;
04165 
04166   if (!caretBox->isOutside()) {
04167     // before or at beginning of inline box -> place at beginning
04168     long r_ofs = 0;
04169     if (x <= xPos) {
04170       r_ofs = caretBox->minOffset();
04171   // somewhere within this block
04172     } else if (x > xPos && x <= xPos + caretBoxWidth) {
04173       if (isText) { // find out where exactly
04174         r_ofs = static_cast<InlineTextBox *>(caretBox->inlineBox())
04175             ->offsetForPoint(x, d->m_caretViewContext->x);
04176 #if DEBUG_CARETMODE > 2
04177         kdDebug(6200) << "deviation from origX " << d->m_caretViewContext->x - x << endl;
04178 #endif
04179 #if 0
04180       } else {  // snap to nearest end
04181         if (xPos + caretBoxWidth - x < x - xPos) {
04182           d->m_caretViewContext->x = xPos + caretBoxWidth;
04183           r_ofs = caretNode ? caretNode->maxOffset() : 1;
04184         } else {
04185           d->m_caretViewContext->x = xPos;
04186           r_ofs = caretNode ? caretNode->minOffset() : 0;
04187         }/*end if*/
04188 #endif
04189       }/*end if*/
04190     } else {        // after the inline box -> place at end
04191       d->m_caretViewContext->x = xPos + caretBoxWidth;
04192       r_ofs = caretBox->maxOffset();
04193     }/*end if*/
04194     offset = r_ofs;
04195   }/*end if*/
04196 #if DEBUG_CARETMODE > 0
04197       kdDebug(6200) << "new offset: " << offset << endl;
04198 #endif
04199 
04200   m_part->d->caretNode() = caretNode;
04201   m_part->d->caretOffset() = offset;
04202 
04203   d->m_caretViewContext->x += absx;
04204   d->m_caretViewContext->y += absy;
04205 
04206 #if DEBUG_CARETMODE > 1
04207     kdDebug(6200) << "new caret position: x " << d->m_caretViewContext->x << " y " << d->m_caretViewContext->y << " w " << d->m_caretViewContext->width << " h " << d->m_caretViewContext->height << " absx " << absx << " absy " << absy << endl;
04208 #endif
04209 
04210   ensureVisible(d->m_caretViewContext->x, d->m_caretViewContext->y,
04211     d->m_caretViewContext->width, d->m_caretViewContext->height);
04212   d->scrollBarMoved = false;
04213 
04214   ensureNodeHasFocus(caretNode);
04215   caretOn();
04216 }
04217 
04218 void KHTMLView::moveCaretToLineBoundary(bool end)
04219 {
04220   Node &caretNodeRef = m_part->d->caretNode();
04221   if (caretNodeRef.isNull()) return;
04222 
04223   NodeImpl *caretNode = caretNodeRef.handle();
04224 //  kdDebug(6200) << ": caretNode=" << caretNode << endl;
04225   long offset = m_part->d->caretOffset();
04226 
04227   ElementImpl *baseElem = determineBaseElement(caretNode);
04228   LinearDocument ld(m_part, caretNode, offset, LeafsOnly, baseElem);
04229 
04230   EditableLineIterator it = ld.current();
04231   if (it == ld.end()) return;   // should not happen, but who knows
04232 
04233   EditableCaretBoxIterator fbit(it, end);
04234   Q_ASSERT(fbit != (*it)->end() && fbit != (*it)->preBegin());
04235   CaretBox *b = *fbit;
04236 
04237   RenderObject *cb = b->containingBlock();
04238   int absx, absy;
04239 
04240   if (cb) cb->absolutePosition(absx,absy);
04241   else absx = absy = 0;
04242 
04243   int x = b->xPos() + (end && !b->isOutside() ? b->width() : 0);
04244   d->m_caretViewContext->origX = absx + x;
04245   placeCaretOnLine(b, x, absx, absy);
04246 }
04247 
04248 void KHTMLView::moveCaretToDocumentBoundary(bool end)
04249 {
04250   Node &caretNodeRef = m_part->d->caretNode();
04251   if (caretNodeRef.isNull()) return;
04252 
04253   NodeImpl *caretNode = caretNodeRef.handle();
04254 //  kdDebug(6200) << ": caretNode=" << caretNode << endl;
04255   long offset = m_part->d->caretOffset();
04256 
04257   ElementImpl *baseElem = determineBaseElement(caretNode);
04258   LinearDocument ld(m_part, caretNode, offset, IndicatedFlows, baseElem);
04259 
04260   EditableLineIterator it(end ? ld.preEnd() : ld.begin(), end);
04261   if (it == ld.end() || it == ld.preBegin()) return;    // should not happen, but who knows
04262 
04263   EditableCaretBoxIterator fbit = it;
04264   Q_ASSERT(fbit != (*it)->end() && fbit != (*it)->preBegin());
04265   CaretBox *b = *fbit;
04266 
04267   RenderObject *cb = (*it)->containingBlock();
04268   int absx, absy;
04269 
04270   if (cb) cb->absolutePosition(absx, absy);
04271   else absx = absy = 0;
04272 
04273   int x = b->xPos()/* + (end ? b->width() : 0) reactivate for rtl*/;
04274   d->m_caretViewContext->origX = absx + x;
04275   placeCaretOnLine(b, x, absx, absy);
04276 }
04277 
04278 void KHTMLView::moveCaretBy(bool next, CaretMovement cmv, int count)
04279 {
04280   if (!m_part) return;
04281   Node &caretNodeRef = m_part->d->caretNode();
04282   if (caretNodeRef.isNull()) return;
04283 
04284   NodeImpl *caretNode = caretNodeRef.handle();
04285 //  kdDebug(6200) << ": caretNode=" << caretNode << endl;
04286   long &offset = m_part->d->caretOffset();
04287 
04288   ElementImpl *baseElem = determineBaseElement(caretNode);
04289   CaretAdvancePolicy advpol = cmv != CaretByWord ? IndicatedFlows : LeafsOnly;
04290   LinearDocument ld(m_part, caretNode, offset, advpol, baseElem);
04291 
04292   EditableCharacterIterator it(&ld);
04293   while (!it.isEnd() && count > 0) {
04294     count--;
04295     if (cmv == CaretByCharacter) {
04296       if (next) ++it;
04297       else --it;
04298     } else if (cmv == CaretByWord) {
04299       if (next) moveItToNextWord(it);
04300       else moveItToPrevWord(it);
04301     }/*end if*/
04302 //kdDebug(6200) << "movecaret" << endl;
04303   }/*wend*/
04304   CaretBox *hintBox = 0;    // make gcc uninit warning disappear
04305   if (!it.isEnd()) {
04306     NodeImpl *node = caretNodeRef.handle();
04307     hintBox = it.caretBox();
04308 //kdDebug(6200) << "hintBox = " << hintBox << endl;
04309 //kdDebug(6200) << " outside " << hintBox->isOutside() << " outsideEnd " << hintBox->isOutsideEnd() << " r " << it.renderer() << " ofs " << it.offset() << " cb " << hintBox->containingBlock() << endl;
04310     mapRenderPosToDOMPos(it.renderer(), it.offset(), hintBox->isOutside(),
04311             hintBox->isOutsideEnd(), node, offset);
04312 //kdDebug(6200) << "mapRTD" << endl;
04313     caretNodeRef = node;
04314 #if DEBUG_CARETMODE > 2
04315     kdDebug(6200) << "set by valid node " << node << " " << (node?node->nodeName().string():QString::null) << " offset: " << offset << endl;
04316 #endif
04317   } else {
04318     offset = next ? caretNode->maxOffset() : caretNode->minOffset();
04319 #if DEBUG_CARETMODE > 0
04320     kdDebug(6200) << "set by INvalid node. offset: " << offset << endl;
04321 #endif
04322   }/*end if*/
04323   placeCaretOnChar(hintBox);
04324 }
04325 
04326 void KHTMLView::placeCaretOnChar(CaretBox *hintBox)
04327 {
04328   caretOff();
04329   recalcAndStoreCaretPos(hintBox);
04330   ensureVisible(d->m_caretViewContext->x, d->m_caretViewContext->y,
04331     d->m_caretViewContext->width, d->m_caretViewContext->height);
04332   d->m_caretViewContext->origX = d->m_caretViewContext->x;
04333   d->scrollBarMoved = false;
04334 #if DEBUG_CARETMODE > 3
04335   //if (caretNode->isTextNode())  kdDebug(6200) << "text[0] = " << (int)*((TextImpl *)caretNode)->data().unicode() << " text :\"" << ((TextImpl *)caretNode)->data().string() << "\"" << endl;
04336 #endif
04337   ensureNodeHasFocus(m_part->d->caretNode().handle());
04338   caretOn();
04339 }
04340 
04341 void KHTMLView::moveCaretByPage(bool next)
04342 {
04343   Node &caretNodeRef = m_part->d->caretNode();
04344   if (caretNodeRef.isNull()) return;
04345 
04346   NodeImpl *caretNode = caretNodeRef.handle();
04347 //  kdDebug(6200) << ": caretNode=" << caretNode << endl;
04348   long offset = m_part->d->caretOffset();
04349 
04350   int offs = (clipper()->height() < 30) ? clipper()->height() : 30;
04351   // Minimum distance the caret must be moved
04352   int mindist = clipper()->height() - offs;
04353 
04354   CaretViewContext *cv = d->caretViewContext();
04355 //  int y = cv->y;      // we always measure the top border
04356 
04357   ElementImpl *baseElem = determineBaseElement(caretNode);
04358   LinearDocument ld(m_part, caretNode, offset, LeafsOnly, baseElem);
04359 
04360   ErgonomicEditableLineIterator it(ld.current(), cv->origX);
04361 
04362   moveIteratorByPage(ld, it, mindist, next);
04363 
04364   int x, absx, absy;
04365   CaretBox *caretBox = nearestCaretBox(it, d->m_caretViewContext, x, absx, absy);
04366 
04367   placeCaretOnLine(caretBox, x, absx, absy);
04368 }
04369 
04370 void KHTMLView::moveCaretPrevWord()
04371 {
04372   moveCaretBy(false, CaretByWord, 1);
04373 }
04374 
04375 void KHTMLView::moveCaretNextWord()
04376 {
04377   moveCaretBy(true, CaretByWord, 1);
04378 }
04379 
04380 void KHTMLView::moveCaretPrevLine(int n)
04381 {
04382   moveCaretByLine(false, n);
04383 }
04384 
04385 void KHTMLView::moveCaretNextLine(int n)
04386 {
04387   moveCaretByLine(true, n);
04388 }
04389 
04390 void KHTMLView::moveCaretPrevPage()
04391 {
04392   moveCaretByPage(false);
04393 }
04394 
04395 void KHTMLView::moveCaretNextPage()
04396 {
04397   moveCaretByPage(true);
04398 }
04399 
04400 void KHTMLView::moveCaretToLineBegin()
04401 {
04402   moveCaretToLineBoundary(false);
04403 }
04404 
04405 void KHTMLView::moveCaretToLineEnd()
04406 {
04407   moveCaretToLineBoundary(true);
04408 }
04409 
04410 #endif // KHTML_NO_CARET
04411 
04412 #undef DEBUG_CARETMODE
KDE Home | KDE Accessibility Home | Description of Access Keys