XMLTreeViewer.cpp   [plain text]


/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
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 *
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 * in the documentation and/or other materials provided with the
 * distribution.
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 * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. AND ITS CONTRIBUTORS
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "config.h"
#include "XMLTreeViewer.h"

#if ENABLE(XSLT)

#include "Document.h"
#include "Element.h"
#include "Frame.h"
#include "Page.h"
#include "ScriptSourceCode.h"
#include "ScriptValue.h"
#include "Settings.h"
#include "Text.h"
#include "XMLViewerCSS.h"
#include "XMLViewerJS.h"

using namespace std;

namespace WebCore {

XMLTreeViewer::XMLTreeViewer(Document* document)
    : m_document(document)
{
}

bool XMLTreeViewer::hasNoStyleInformation() const
{
    if (m_document->sawElementsInKnownNamespaces() || m_document->transformSourceDocument())
        return false;

    if (!m_document->frame() || !m_document->frame()->page())
        return false;

    if (!m_document->frame()->page()->settings()->developerExtrasEnabled())
        return false;

    if (m_document->frame()->tree()->parent(true))
        return false; // This document is not in a top frame

    return true;
}

void XMLTreeViewer::transformDocumentToTreeView()
{
    m_document->setIsViewSource(true);
    String scriptString(reinterpret_cast<const char*>(XMLViewer_js), sizeof(XMLViewer_js));
    m_document->frame()->script()->evaluate(ScriptSourceCode(scriptString));
    String noStyleMessage("This XML file does not appear to have any style information associated with it. The document tree is shown below.");
    m_document->frame()->script()->evaluate(ScriptSourceCode("prepareWebKitXMLViewer('" + noStyleMessage + "');"));

    String cssString(reinterpret_cast<const char*>(XMLViewer_css), sizeof(XMLViewer_css));
    RefPtr<Text> text = m_document->createTextNode(cssString);
    ExceptionCode exceptionCode;
    m_document->getElementById("xml-viewer-style")->appendChild(text, exceptionCode);
    m_document->styleResolverChanged(RecalcStyleImmediately);
}

} // namespace WebCore

#endif // ENABLE(XSLT)