/**
* This file is part of the HTML widget for KDE.
*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* Copyright (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2004 Apple Computer, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#include "render_replaced.h"
#include "render_arena.h"
#include "render_canvas.h"
#include "render_line.h"
#include
#include
#include
#include
#include
#include "khtml_ext.h"
#include "khtmlview.h"
#include "xml/dom2_eventsimpl.h"
#include "khtml_part.h"
#include "xml/dom_docimpl.h" // ### remove dependency
#include "xml/dom_position.h"
#include
using namespace khtml;
using namespace DOM;
RenderReplaced::RenderReplaced(DOM::NodeImpl* node)
: RenderBox(node)
{
// init RenderObject attributes
setReplaced(true);
m_intrinsicWidth = 200;
m_intrinsicHeight = 150;
m_selectionState = SelectionNone;
}
bool RenderReplaced::shouldPaint(PaintInfo& i, int& _tx, int& _ty)
{
if (i.phase != PaintActionForeground && i.phase != PaintActionOutline && i.phase != PaintActionSelection)
return false;
if (!shouldPaintWithinRoot(i))
return false;
// if we're invisible or haven't received a layout yet, then just bail.
if (style()->visibility() != VISIBLE || m_y <= -500000) return false;
int tx = _tx + m_x;
int ty = _ty + m_y;
// Early exit if the element touches the edges.
int top = ty;
int bottom = ty + m_height;
if (m_selectionState != SelectionNone && m_inlineBoxWrapper) {
int selTop = _ty + m_inlineBoxWrapper->root()->selectionTop();
int selBottom = _ty + selTop + m_inlineBoxWrapper->root()->selectionHeight();
top = kMin(selTop, top);
bottom = kMax(selBottom, bottom);
}
int os = 2*maximalOutlineSize(i.phase);
if ((tx >= i.r.x() + i.r.width() + os) || (tx + m_width <= i.r.x() - os))
return false;
if ((top >= i.r.y() + i.r.height() + os) || (bottom <= i.r.y() - os))
return false;
return true;
}
void RenderReplaced::calcMinMaxWidth()
{
KHTMLAssert( !minMaxKnown());
#ifdef DEBUG_LAYOUT
kdDebug( 6040 ) << "RenderReplaced::calcMinMaxWidth() known=" << minMaxKnown() << endl;
#endif
int width = calcReplacedWidth() + paddingLeft() + paddingRight() + borderLeft() + borderRight();
if (style()->width().isPercent() || (style()->width().isVariable() && style()->height().isPercent())) {
m_minWidth = 0;
m_maxWidth = width;
}
else
m_minWidth = m_maxWidth = width;
setMinMaxKnown();
}
short RenderReplaced::lineHeight( bool, bool ) const
{
return height()+marginTop()+marginBottom();
}
short RenderReplaced::baselinePosition( bool, bool ) const
{
return height()+marginTop()+marginBottom();
}
long RenderReplaced::caretMinOffset() const
{
return 0;
}
// Returns 1 since a replaced element can have the caret positioned
// at its beginning (0), or at its end (1).
long RenderReplaced::caretMaxOffset() const
{
return 1;
}
unsigned long RenderReplaced::caretMaxRenderedOffset() const
{
return 1;
}
VisiblePosition RenderReplaced::positionForCoordinates(int _x, int _y)
{
InlineBox *box = inlineBoxWrapper();
if (!box)
return VisiblePosition(element(), 0, DOWNSTREAM);
RootInlineBox *root = box->root();
int absx, absy;
containingBlock()->absolutePosition(absx, absy);
int top = absy + root->topOverflow();
int bottom = root->nextRootBox() ? absy + root->nextRootBox()->topOverflow() : absy + root->bottomOverflow();
if (_y < top)
return VisiblePosition(element(), caretMinOffset(), DOWNSTREAM); // coordinates are above
if (_y >= bottom)
return VisiblePosition(element(), caretMaxOffset(), DOWNSTREAM); // coordinates are below
if (element()) {
if (_x <= absx + xPos() + (width() / 2))
return VisiblePosition(element(), 0, DOWNSTREAM);
return VisiblePosition(element(), 1, DOWNSTREAM);
}
return RenderBox::positionForCoordinates(_x, _y);
}
QRect RenderReplaced::selectionRect()
{
if (selectionState() == SelectionNone)
return QRect();
if (!m_inlineBoxWrapper)
// We're a block-level replaced element. Just return our own dimensions.
return absoluteBoundingBoxRect();
RenderBlock* cb = containingBlock();
if (!cb)
return QRect();
RootInlineBox* root = m_inlineBoxWrapper->root();
int selectionTop = root->selectionTop();
int selectionHeight = root->selectionHeight();
int selectionLeft = xPos();
int selectionRight = xPos() + width();
int absx, absy;
cb->absolutePosition(absx, absy);
return QRect(selectionLeft + absx, selectionTop + absy, selectionRight - selectionLeft, selectionHeight);
}
void RenderReplaced::setSelectionState(SelectionState s)
{
m_selectionState = s;
if (m_inlineBoxWrapper) {
RootInlineBox* line = m_inlineBoxWrapper->root();
if (line)
line->setHasSelectedChildren(s != SelectionNone);
}
containingBlock()->setSelectionState(s);
}
QColor RenderReplaced::selectionColor(QPainter *p) const
{
QColor color = RenderBox::selectionColor(p);
// Force a 60% alpha so that no user-specified selection color can obscure selected images.
if (qAlpha(color.rgb()) > 153)
color = QColor(qRgba(color.red(), color.green(), color.blue(), 153));
return color;
}
// -----------------------------------------------------------------------------
RenderWidget::RenderWidget(DOM::NodeImpl* node)
: RenderReplaced(node),
m_deleteWidget(false)
{
m_widget = 0;
// a replaced element doesn't support being anonymous
assert(node);
m_view = node->getDocument()->view();
// this is no real reference counting, its just there
// to make sure that we're not deleted while we're recursed
// in an eventFilter of the widget
ref();
}
void RenderWidget::detach()
{
remove();
if ( m_widget ) {
if ( m_view )
m_view->removeChild( m_widget );
m_widget->removeEventFilter( this );
m_widget->setMouseTracking( false );
}
RenderArena* arena = renderArena();
if (m_inlineBoxWrapper) {
if (!documentBeingDestroyed())
m_inlineBoxWrapper->remove();
m_inlineBoxWrapper->detach(arena);
m_inlineBoxWrapper = 0;
}
setNode(0);
deref(arena);
}
RenderWidget::~RenderWidget()
{
KHTMLAssert( refCount() <= 0 );
if (m_deleteWidget) {
delete m_widget;
}
}
void RenderWidget::resizeWidget( QWidget *widget, int w, int h )
{
#if !APPLE_CHANGES
// ugly hack to limit the maximum size of the widget (as X11 has problems if it's bigger)
h = QMIN( h, 3072 );
w = QMIN( w, 2000 );
#endif
if (element() && (widget->width() != w || widget->height() != h)) {
RenderArena *arena = ref();
element()->ref();
widget->resize( w, h );
element()->deref();
deref(arena);
}
}
void RenderWidget::setQWidget(QWidget *widget, bool deleteWidget)
{
if (widget != m_widget)
{
if (m_widget) {
m_widget->removeEventFilter(this);
disconnect( m_widget, SIGNAL( destroyed()), this, SLOT( slotWidgetDestructed()));
if (m_deleteWidget) {
delete m_widget;
}
m_widget = 0;
}
m_widget = widget;
if (m_widget) {
connect( m_widget, SIGNAL( destroyed()), this, SLOT( slotWidgetDestructed()));
m_widget->installEventFilter(this);
// if we've already received a layout, apply the calculated space to the
// widget immediately, but we have to have really been full constructed (with a non-null
// style pointer).
if (!needsLayout() && style()) {
resizeWidget( m_widget,
m_width-borderLeft()-borderRight()-paddingLeft()-paddingRight(),
m_height-borderLeft()-borderRight()-paddingLeft()-paddingRight() );
}
else
setPos(xPos(), -500000);
#if APPLE_CHANGES
if (style()) {
if (style()->visibility() != VISIBLE)
m_widget->hide();
else
m_widget->show();
}
#endif
}
m_view->addChild( m_widget, -500000, 0 );
}
m_deleteWidget = deleteWidget;
}
void RenderWidget::layout( )
{
KHTMLAssert( needsLayout() );
KHTMLAssert( minMaxKnown() );
#if !APPLE_CHANGES
if ( m_widget ) {
resizeWidget( m_widget,
m_width-borderLeft()-borderRight()-paddingLeft()-paddingRight(),
m_height-borderLeft()-borderRight()-paddingLeft()-paddingRight() );
}
#endif
setNeedsLayout(false);
}
#if APPLE_CHANGES
void RenderWidget::sendConsumedMouseUp(const QPoint &mousePos, int button, int state)
{
RenderArena *arena = ref();
QMouseEvent e( QEvent::MouseButtonRelease, mousePos, button, state);
element()->dispatchMouseEvent(&e, EventImpl::MOUSEUP_EVENT, 0);
deref(arena);
}
#endif
void RenderWidget::slotWidgetDestructed()
{
m_widget = 0;
}
void RenderWidget::setStyle(RenderStyle *_style)
{
RenderReplaced::setStyle(_style);
if (m_widget)
{
m_widget->setFont(style()->font());
if (style()->visibility() != VISIBLE)
m_widget->hide();
#if APPLE_CHANGES
else
m_widget->show();
#endif
}
}
void RenderWidget::paint(PaintInfo& i, int _tx, int _ty)
{
if (!shouldPaint(i, _tx, _ty)) return;
_tx += m_x;
_ty += m_y;
if (shouldPaintBackgroundOrBorder() && i.phase != PaintActionOutline)
paintBoxDecorations(i, _tx, _ty);
#if APPLE_CHANGES
if (!m_widget || !m_view || i.phase != PaintActionForeground ||
style()->visibility() != VISIBLE)
return;
// Move the widget if necessary. We normally move and resize widgets during layout, but sometimes
// widgets can move without layout occurring (most notably when you scroll a document that
// contains fixed positioned elements).
int newX = _tx + borderLeft() + paddingLeft();
int newY = _ty + borderTop() + paddingTop();
if (m_view->childX(m_widget) != newX || m_view->childY(m_widget) != newY)
m_widget->move(newX, newY);
// Tell the widget to paint now. This is the only time the widget is allowed
// to paint itself. That way it will composite properly with z-indexed layers.
m_widget->paint(i.p, i.r);
// Paint a partially transparent wash over selected widgets.
if (m_selectionState != SelectionNone) {
QBrush brush(selectionColor(i.p));
QRect selRect(selectionRect());
i.p->fillRect(selRect.x(), selRect.y(), selRect.width(), selRect.height(), brush);
}
#else
if (!m_widget || !m_view || i.phase != PaintActionForeground)
return;
if (style()->visibility() != VISIBLE) {
m_widget->hide();
return;
}
int xPos = _tx+borderLeft()+paddingLeft();
int yPos = _ty+borderTop()+paddingTop();
int childw = m_widget->width();
int childh = m_widget->height();
if ( (childw == 2000 || childh == 3072) && m_widget->inherits( "KHTMLView" ) ) {
KHTMLView *vw = static_cast(m_widget);
int cy = m_view->contentsY();
int ch = m_view->visibleHeight();
int childx = m_view->childX( m_widget );
int childy = m_view->childY( m_widget );
int xNew = xPos;
int yNew = childy;
// qDebug("cy=%d, ch=%d, childy=%d, childh=%d", cy, ch, childy, childh );
if ( childh == 3072 ) {
if ( cy + ch > childy + childh ) {
yNew = cy + ( ch - childh )/2;
} else if ( cy < childy ) {
yNew = cy + ( ch - childh )/2;
}
// qDebug("calculated yNew=%d", yNew);
}
yNew = kMin( yNew, yPos + m_height - childh );
yNew = kMax( yNew, yPos );
if ( yNew != childy || xNew != childx ) {
if ( vw->contentsHeight() < yNew - yPos + childh )
vw->resizeContents( vw->contentsWidth(), yNew - yPos + childh );
vw->setContentsPos( xNew - xPos, yNew - yPos );
}
xPos = xNew;
yPos = yNew;
}
m_view->addChild(m_widget, xPos, yPos );
m_widget->show();
#endif
}
void RenderWidget::handleFocusOut()
{
}
bool RenderWidget::eventFilter(QObject* /*o*/, QEvent* e)
{
if ( !element() ) return true;
RenderArena *arena = ref();
DOM::NodeImpl *elem = element();
elem->ref();
bool filtered = false;
//kdDebug() << "RenderWidget::eventFilter type=" << e->type() << endl;
switch(e->type()) {
case QEvent::FocusOut:
//static const char* const r[] = {"Mouse", "Tab", "Backtab", "ActiveWindow", "Popup", "Shortcut", "Other" };
//kdDebug() << "RenderFormElement::eventFilter FocusOut widget=" << m_widget << " reason:" << r[QFocusEvent::reason()] << endl;
// Don't count popup as a valid reason for losing the focus
// (example: opening the options of a select combobox shouldn't emit onblur)
if ( QFocusEvent::reason() != QFocusEvent::Popup )
{
//kdDebug(6000) << "RenderWidget::eventFilter captures FocusOut" << endl;
if (elem->getDocument()->focusNode() == elem)
elem->getDocument()->setFocusNode(0);
// if ( elem->isEditable() ) {
// KHTMLPartBrowserExtension *ext = static_cast( elem->view->part()->browserExtension() );
// if ( ext ) ext->editableWidgetBlurred( m_widget );
// }
handleFocusOut();
}
break;
case QEvent::FocusIn:
//kdDebug(6000) << "RenderWidget::eventFilter captures FocusIn" << endl;
elem->getDocument()->setFocusNode(elem);
// if ( isEditable() ) {
// KHTMLPartBrowserExtension *ext = static_cast( elem->view->part()->browserExtension() );
// if ( ext ) ext->editableWidgetFocused( m_widget );
// }
break;
case QEvent::MouseButtonPress:
// handleMousePressed(static_cast(e));
break;
case QEvent::MouseButtonRelease:
// {
// int absX, absY;
// absolutePosition(absX,absY);
// QMouseEvent* _e = static_cast(e);
// m_button = _e->button();
// m_state = _e->state();
// QMouseEvent e2(e->type(),QPoint(absX,absY)+_e->pos(),_e->button(),_e->state());
// elem->dispatchMouseEvent(&e2,EventImpl::MOUSEUP_EVENT,m_clickCount);
// if((m_mousePos - e2.pos()).manhattanLength() <= QApplication::startDragDistance()) {
// // DOM2 Events section 1.6.2 says that a click is if the mouse was pressed
// // and released in the "same screen location"
// // As people usually can't click on the same pixel, we're a bit tolerant here
// elem->dispatchMouseEvent(&e2,EventImpl::CLICK_EVENT,m_clickCount);
// }
// if(!isRenderButton()) {
// // ### DOMActivate is also dispatched for thigs like selects & textareas -
// // not sure if this is correct
// elem->dispatchUIEvent(EventImpl::DOMACTIVATE_EVENT,m_isDoubleClick ? 2 : 1);
// elem->dispatchMouseEvent(&e2, m_isDoubleClick ? EventImpl::KHTML_DBLCLICK_EVENT : EventImpl::KHTML_CLICK_EVENT, m_clickCount);
// m_isDoubleClick = false;
// }
// else
// // save position for slotClicked - see below -
// m_mousePos = e2.pos();
// }
break;
case QEvent::MouseButtonDblClick:
// {
// m_isDoubleClick = true;
// handleMousePressed(static_cast(e));
// }
break;
case QEvent::MouseMove:
// {
// int absX, absY;
// absolutePosition(absX,absY);
// QMouseEvent* _e = static_cast(e);
// QMouseEvent e2(e->type(),QPoint(absX,absY)+_e->pos(),_e->button(),_e->state());
// elem->dispatchMouseEvent(&e2);
// // ### change cursor like in KHTMLView?
// }
break;
case QEvent::KeyPress:
case QEvent::KeyRelease:
{
if (!elem->dispatchKeyEvent(static_cast(e)))
filtered = true;
break;
}
default: break;
};
elem->deref();
// stop processing if the widget gets deleted, but continue in all other cases
if (hasOneRef())
filtered = true;
deref(arena);
return filtered;
}
void RenderWidget::deref(RenderArena *arena)
{
if (_ref) _ref--;
if (!_ref)
arenaDelete(arena, this);
}
#if APPLE_CHANGES
void RenderWidget::updateWidgetPositions()
{
if (!m_widget)
return;
int x, y, width, height;
absolutePosition(x,y);
x += borderLeft() + paddingLeft();
y += borderTop() + paddingTop();
width = m_width - borderLeft() - borderRight() - paddingLeft() - paddingRight();
height = m_height - borderTop() - borderBottom() - paddingTop() - paddingBottom();
QRect newBounds(x,y,width,height);
QRect oldBounds(m_widget->frameGeometry());
if (newBounds != oldBounds) {
// The widget changed positions. Update the frame geometry.
if (checkForRepaintDuringLayout()) {
RenderCanvas* c = canvas();
if (!c->printingMode()) {
c->repaintViewRectangle(oldBounds);
c->repaintViewRectangle(newBounds);
}
}
RenderArena *arena = ref();
element()->ref();
m_widget->setFrameGeometry(newBounds);
element()->deref();
deref(arena);
}
}
#endif
void RenderWidget::setSelectionState(SelectionState s)
{
if (m_selectionState != s) {
RenderReplaced::setSelectionState(s);
m_selectionState = s;
if (m_widget)
m_widget->setIsSelected(m_selectionState != SelectionNone);
}
}
#include "render_replaced.moc"