1 /* 2 * Copyright (C) 2011 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. AND ITS CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. 20 * OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include "config.h" 30 #include "XMLTreeViewer.h" 31 32 #if ENABLE(XSLT) 33 34 #include "Document.h" 35 #include "Element.h" 36 #include "Frame.h" 37 #include "Page.h" 38 #include "ScriptController.h" 39 #include "ScriptSourceCode.h" 40 #include "Settings.h" 41 #include "Text.h" 42 #include "XMLViewerCSS.h" 43 #include "XMLViewerJS.h" 44 45 using namespace std; 46 47 namespace WebCore { 48 49 XMLTreeViewer::XMLTreeViewer(Document* document) 50 : m_document(document) 51 { 52 } 53 54 bool XMLTreeViewer::hasNoStyleInformation() const 55 { 56 if (m_document->sawElementsInKnownNamespaces() || m_document->transformSourceDocument()) 57 return false; 58 59 if (!m_document->frame() || !m_document->frame()->page()) 60 return false; 61 62 if (!m_document->frame()->page()->settings()->developerExtrasEnabled()) 63 return false; 64 65 if (m_document->frame()->tree()->parent(true)) 66 return false; // This document is not in a top frame 67 68 return true; 69 } 70 71 void XMLTreeViewer::transformDocumentToTreeView() 72 { 73 // FIXME: Temporary hack to ensure that we still display some of the document (and don't crash) 74 // when script is disabled. See https://bugs.webkit.org/show_bug.cgi?id=59113 for work on a 75 // better solution. 76 if (!m_document->frame()->script()->canExecuteScripts(NotAboutToExecuteScript)) 77 return; 78 79 String scriptString(reinterpret_cast<const char*>(XMLViewer_js), sizeof(XMLViewer_js)); 80 m_document->frame()->script()->evaluate(ScriptSourceCode(scriptString)); 81 String noStyleMessage("This XML file does not appear to have any style information associated with it. The document tree is shown below."); 82 m_document->frame()->script()->evaluate(ScriptSourceCode("prepareWebKitXMLViewer('" + noStyleMessage + "');")); 83 84 String cssString(reinterpret_cast<const char*>(XMLViewer_css), sizeof(XMLViewer_css)); 85 RefPtr<Text> text = m_document->createTextNode(cssString); 86 ExceptionCode exceptionCode; 87 m_document->getElementById("xml-viewer-style")->appendChild(text, exceptionCode); 88 89 m_document->setUsesViewSourceStyles(true); 90 m_document->styleSelectorChanged(RecalcStyleImmediately); 91 } 92 93 } // namespace WebCore 94 95 #endif // ENABLE(XSLT) 96
