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
XMLTreeViewer(Document * document)49 XMLTreeViewer::XMLTreeViewer(Document* document)
50 : m_document(document)
51 {
52 }
53
hasNoStyleInformation() const54 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
transformDocumentToTreeView()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