1 | /* |
2 | * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved. |
3 | * |
4 | * This library is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU Library General Public |
6 | * License as published by the Free Software Foundation; either |
7 | * version 2 of the License, or (at your option) any later version. |
8 | * |
9 | * This library is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Library General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU Library General Public License |
15 | * along with this library; see the file COPYING.LIB. If not, write to |
16 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
17 | * Boston, MA 02110-1301, USA. |
18 | * |
19 | */ |
20 | |
21 | #pragma once |
22 | |
23 | #include "HTMLElement.h" |
24 | #include "ReferrerPolicy.h" |
25 | #include <wtf/HashCountedSet.h> |
26 | #include <wtf/NeverDestroyed.h> |
27 | |
28 | namespace WebCore { |
29 | |
30 | class DOMWindow; |
31 | class Frame; |
32 | class RenderWidget; |
33 | class SVGDocument; |
34 | |
35 | class HTMLFrameOwnerElement : public HTMLElement { |
36 | WTF_MAKE_ISO_ALLOCATED(HTMLFrameOwnerElement); |
37 | public: |
38 | virtual ~HTMLFrameOwnerElement(); |
39 | |
40 | Frame* contentFrame() const { return m_contentFrame; } |
41 | WEBCORE_EXPORT WindowProxy* contentWindow() const; |
42 | WEBCORE_EXPORT Document* contentDocument() const; |
43 | |
44 | void setContentFrame(Frame*); |
45 | void clearContentFrame(); |
46 | |
47 | void disconnectContentFrame(); |
48 | |
49 | // Most subclasses use RenderWidget (either RenderEmbeddedObject or RenderIFrame) |
50 | // except for HTMLObjectElement and HTMLEmbedElement which may return any |
51 | // RenderElement when using fallback content. |
52 | RenderWidget* renderWidget() const; |
53 | |
54 | ExceptionOr<Document&> getSVGDocument() const; |
55 | |
56 | virtual ScrollbarMode scrollingMode() const { return ScrollbarAuto; } |
57 | |
58 | SandboxFlags sandboxFlags() const { return m_sandboxFlags; } |
59 | |
60 | void scheduleInvalidateStyleAndLayerComposition(); |
61 | |
62 | virtual bool isURLAllowed(const URL&) const { return true; } |
63 | |
64 | virtual ReferrerPolicy referrerPolicy() const { return ReferrerPolicy::EmptyString; } |
65 | |
66 | protected: |
67 | HTMLFrameOwnerElement(const QualifiedName& tagName, Document&); |
68 | void setSandboxFlags(SandboxFlags); |
69 | |
70 | private: |
71 | bool isKeyboardFocusable(KeyboardEvent*) const override; |
72 | bool isFrameOwnerElement() const final { return true; } |
73 | |
74 | Frame* m_contentFrame; |
75 | SandboxFlags m_sandboxFlags; |
76 | }; |
77 | |
78 | class SubframeLoadingDisabler { |
79 | public: |
80 | explicit SubframeLoadingDisabler(ContainerNode* root) |
81 | : m_root(root) |
82 | { |
83 | if (m_root) |
84 | disabledSubtreeRoots().add(m_root); |
85 | } |
86 | |
87 | ~SubframeLoadingDisabler() |
88 | { |
89 | if (m_root) |
90 | disabledSubtreeRoots().remove(m_root); |
91 | } |
92 | |
93 | static bool canLoadFrame(HTMLFrameOwnerElement&); |
94 | |
95 | private: |
96 | static HashCountedSet<ContainerNode*>& disabledSubtreeRoots() |
97 | { |
98 | static NeverDestroyed<HashCountedSet<ContainerNode*>> nodes; |
99 | return nodes; |
100 | } |
101 | |
102 | ContainerNode* m_root; |
103 | }; |
104 | |
105 | } // namespace WebCore |
106 | |
107 | SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::HTMLFrameOwnerElement) |
108 | static bool isType(const WebCore::Node& node) { return node.isFrameOwnerElement(); } |
109 | SPECIALIZE_TYPE_TRAITS_END() |
110 | |