WebCore/rendering/RenderApplet.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 04 Oct 2010 01:32:07 +0300
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/*
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 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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 * Copyright (C) 2003, 2006, 2009 Apple Inc. All rights reserved.
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Library General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Library General Public License for more details.
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 *
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 * You should have received a copy of the GNU Library General Public License
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 * along with this library; see the file COPYING.LIB.  If not, write to
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 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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 * Boston, MA 02110-1301, USA.
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 *
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 */
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#include "config.h"
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#include "RenderApplet.h"
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#include "Frame.h"
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#include "HTMLAppletElement.h"
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#include "HTMLNames.h"
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#include "HTMLParamElement.h"
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#include "Widget.h"
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namespace WebCore {
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using namespace HTMLNames;
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RenderApplet::RenderApplet(HTMLAppletElement* applet, const HashMap<String, String>& args)
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    : RenderWidget(applet)
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    , m_args(args)
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{
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    setInline(true);
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}
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IntSize RenderApplet::intrinsicSize() const
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{
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    // FIXME: This doesn't make sense. We can't just start returning
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    // a different size once we've created the widget and expect
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    // layout and sizing to be correct. We should remove this and
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    // pass the appropriate intrinsic size in the constructor.
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    return widget() ? IntSize(50, 50) : IntSize(150, 150);
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}
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void RenderApplet::createWidgetIfNecessary()
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{
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    HTMLAppletElement* element = static_cast<HTMLAppletElement*>(node());
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    if (widget() || !element->isFinishedParsingChildren())
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        return;
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    // FIXME: Java applets can't be resized (this is a bug in Apple's Java implementation).
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    // In order to work around this problem and have a correct size from the start, we will
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    // use fixed widths/heights from the style system when we can, since the widget might
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    // not have an accurate m_width/m_height.
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    int contentWidth = style()->width().isFixed() ? style()->width().value() : 
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        width() - borderAndPaddingWidth();
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    int contentHeight = style()->height().isFixed() ? style()->height().value() :
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        height() - borderAndPaddingHeight();
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    for (Node* child = element->firstChild(); child; child = child->nextSibling()) {
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        if (child->hasTagName(paramTag)) {
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            HTMLParamElement* p = static_cast<HTMLParamElement*>(child);
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            if (!p->name().isEmpty())
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                m_args.set(p->name(), p->value());
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        }
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    }
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    Frame* frame = this->frame();
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    ASSERT(frame);
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    setWidget(frame->loader()->subframeLoader()->createJavaAppletWidget(IntSize(contentWidth, contentHeight), element, m_args));
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}
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void RenderApplet::layout()
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{
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    ASSERT(needsLayout());
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    calcWidth();
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    calcHeight();
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    // The applet's widget gets created lazily upon first layout.
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    createWidgetIfNecessary();
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    setNeedsLayout(false);
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}
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} // namespace WebCore