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      1 /*
      2  * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org)
      3  * Copyright (C) 2003, 2006, 2009 Apple Inc. All rights reserved.
      4  *
      5  * This library is free software; you can redistribute it and/or
      6  * modify it under the terms of the GNU Library General Public
      7  * License as published by the Free Software Foundation; either
      8  * version 2 of the License, or (at your option) any later version.
      9  *
     10  * This library is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13  * Library General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU Library General Public License
     16  * along with this library; see the file COPYING.LIB.  If not, write to
     17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     18  * Boston, MA 02110-1301, USA.
     19  *
     20  */
     21 
     22 #include "config.h"
     23 #include "RenderApplet.h"
     24 
     25 #include "Frame.h"
     26 #include "HTMLAppletElement.h"
     27 #include "HTMLNames.h"
     28 #include "HTMLParamElement.h"
     29 #include "Widget.h"
     30 
     31 namespace WebCore {
     32 
     33 using namespace HTMLNames;
     34 
     35 RenderApplet::RenderApplet(HTMLAppletElement* applet, const HashMap<String, String>& args)
     36     : RenderWidget(applet)
     37     , m_args(args)
     38 {
     39     setInline(true);
     40 }
     41 
     42 IntSize RenderApplet::intrinsicSize() const
     43 {
     44     // FIXME: This doesn't make sense. We can't just start returning
     45     // a different size once we've created the widget and expect
     46     // layout and sizing to be correct. We should remove this and
     47     // pass the appropriate intrinsic size in the constructor.
     48     return widget() ? IntSize(50, 50) : IntSize(150, 150);
     49 }
     50 
     51 void RenderApplet::createWidgetIfNecessary()
     52 {
     53     HTMLAppletElement* element = static_cast<HTMLAppletElement*>(node());
     54     if (widget() || !element->isFinishedParsingChildren())
     55         return;
     56 
     57     // FIXME: Java applets can't be resized (this is a bug in Apple's Java implementation).
     58     // In order to work around this problem and have a correct size from the start, we will
     59     // use fixed widths/heights from the style system when we can, since the widget might
     60     // not have an accurate m_width/m_height.
     61     int contentWidth = style()->width().isFixed() ? style()->width().value() :
     62         width() - borderLeft() - borderRight() - paddingLeft() - paddingRight();
     63     int contentHeight = style()->height().isFixed() ? style()->height().value() :
     64         height() - borderTop() - borderBottom() - paddingTop() - paddingBottom();
     65     for (Node* child = element->firstChild(); child; child = child->nextSibling()) {
     66         if (child->hasTagName(paramTag)) {
     67             HTMLParamElement* p = static_cast<HTMLParamElement*>(child);
     68             if (!p->name().isEmpty())
     69                 m_args.set(p->name(), p->value());
     70         }
     71     }
     72 
     73     Frame* frame = document()->frame();
     74     ASSERT(frame);
     75     setWidget(frame->loader()->createJavaAppletWidget(IntSize(contentWidth, contentHeight), element, m_args));
     76 }
     77 
     78 void RenderApplet::layout()
     79 {
     80     ASSERT(needsLayout());
     81 
     82     calcWidth();
     83     calcHeight();
     84 
     85     // The applet's widget gets created lazily upon first layout.
     86     createWidgetIfNecessary();
     87     setNeedsLayout(false);
     88 }
     89 
     90 } // namespace WebCore
     91