1 /**

     2  * This file is part of the HTML widget for KDE.

     3  *

     4  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)

     5  * Copyright (C) 2003, 2006 Apple Computer, Inc.

     6  *

     7  * This library is free software; you can redistribute it and/or

     8  * modify it under the terms of the GNU Library General Public

     9  * License as published by the Free Software Foundation; either

    10  * version 2 of the License, or (at your option) any later version.

    11  *

    12  * This library is distributed in the hope that it will be useful,

    13  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    15  * Library General Public License for more details.

    16  *

    17  * You should have received a copy of the GNU Library General Public License

    18  * along with this library; see the file COPYING.LIB.  If not, write to

    19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    20  * Boston, MA 02110-1301, USA.

    21  *

    22  */

    23 

    24 #include "config.h"

    25 #include "RenderApplet.h"

    26 

    27 #include "Document.h"

    28 #include "Frame.h"

    29 #include "FrameLoader.h"

    30 #include "HTMLAppletElement.h"

    31 #include "HTMLNames.h"

    32 #include "HTMLParamElement.h"

    33 #include "Widget.h"

    34 

    35 namespace WebCore {

    36 

    37 using namespace HTMLNames;

    38 

    39 RenderApplet::RenderApplet(HTMLAppletElement* applet, const HashMap<String, String>& args)

    40     : RenderWidget(applet)

    41     , m_args(args)

    42 {

    43     setInline(true);

    44 }

    45 

    46 RenderApplet::~RenderApplet()

    47 {

    48 }

    49 

    50 IntSize RenderApplet::intrinsicSize() const

    51 {

    52     // FIXME: This doesn't make sense. We can't just start returning

    53     // a different size once we've created the widget and expect

    54     // layout and sizing to be correct. We should remove this and

    55     // pass the appropriate intrinsic size in the constructor.

    56     return m_widget ? IntSize(50, 50) : IntSize(150, 150);

    57 }

    58 

    59 void RenderApplet::createWidgetIfNecessary()

    60 {

    61     HTMLAppletElement* element = static_cast<HTMLAppletElement*>(node());

    62     if (m_widget)

    63         return;

    64     if (!element->allParamsAvailable())

    65         return;

    66 

    67     // FIXME: Java applets can't be resized (this is a bug in Apple's Java implementation).

    68     // In order to work around this problem and have a correct size from the start, we will

    69     // use fixed widths/heights from the style system when we can, since the widget might

    70     // not have an accurate m_width/m_height.

    71     int width = style()->width().isFixed() ? style()->width().value() : 

    72         m_width - borderLeft() - borderRight() - paddingLeft() - paddingRight();

    73     int height = style()->height().isFixed() ? style()->height().value() :

    74         m_height - borderTop() - borderBottom() - paddingTop() - paddingBottom();

    75     for (Node* child = element->firstChild(); child; child = child->nextSibling()) {

    76         if (child->hasTagName(paramTag)) {

    77             HTMLParamElement* p = static_cast<HTMLParamElement*>(child);

    78             if (!p->name().isEmpty())

    79                 m_args.set(p->name(), p->value());

    80         }

    81     }

    82 

    83     Frame* frame = document()->frame();

    84     ASSERT(frame);

    85     setWidget(frame->loader()->createJavaAppletWidget(IntSize(width, height), element, m_args));

    86 }

    87 

    88 void RenderApplet::layout()

    89 {

    90     ASSERT(needsLayout());

    91 

    92     calcWidth();

    93     calcHeight();

    94 

    95     // The applet's widget gets created lazily upon first layout.

    96     createWidgetIfNecessary();

    97     setNeedsLayout(false);

    98 }

    99 

   100 } // namespace WebCore