1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
/*
* Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef HTMLFrameOwnerElement_h
#define HTMLFrameOwnerElement_h
#include "core/dom/Document.h"
#include "core/frame/FrameOwner.h"
#include "core/html/HTMLElement.h"
#include "platform/heap/Handle.h"
#include "platform/scroll/ScrollTypes.h"
#include "wtf/HashCountedSet.h"
namespace blink {
class LocalDOMWindow;
class ExceptionState;
class Frame;
class RenderPart;
class Widget;
class HTMLFrameOwnerElement : public HTMLElement, public FrameOwner {
WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(HTMLFrameOwnerElement);
public:
virtual ~HTMLFrameOwnerElement();
Frame* contentFrame() const { return m_contentFrame; }
DOMWindow* contentWindow() const;
Document* contentDocument() const;
void setContentFrame(Frame&);
void clearContentFrame();
virtual void disconnectContentFrame();
// Most subclasses use RenderPart (either RenderEmbeddedObject or RenderIFrame)
// except for HTMLObjectElement and HTMLEmbedElement which may return any
// RenderObject when using fallback content.
RenderPart* renderPart() const;
Document* getSVGDocument(ExceptionState&) const;
virtual ScrollbarMode scrollingMode() const { return ScrollbarAuto; }
virtual bool loadedNonEmptyDocument() const { return false; }
virtual void didLoadNonEmptyDocument() { }
virtual void renderFallbackContent() { }
virtual bool isObjectElement() const { return false; }
void setWidget(PassRefPtrWillBeRawPtr<Widget>);
Widget* ownedWidget() const;
class UpdateSuspendScope {
public:
UpdateSuspendScope();
~UpdateSuspendScope();
private:
void performDeferredWidgetTreeOperations();
};
virtual void trace(Visitor*) override;
protected:
HTMLFrameOwnerElement(const QualifiedName& tagName, Document&);
void setSandboxFlags(SandboxFlags);
bool loadOrRedirectSubframe(const KURL&, const AtomicString& frameName, bool lockBackForwardList, ContentSecurityPolicyDisposition shouldCheckContentSecurityPolicy);
private:
virtual bool isKeyboardFocusable() const override;
virtual bool isFrameOwnerElement() const override final { return true; }
// FrameOwner overrides:
virtual bool isLocal() const { return true; }
virtual SandboxFlags sandboxFlags() const override;
virtual void dispatchLoad() override;
RawPtrWillBeMember<Frame> m_contentFrame;
RefPtrWillBeMember<Widget> m_widget;
SandboxFlags m_sandboxFlags;
};
DEFINE_ELEMENT_TYPE_CASTS(HTMLFrameOwnerElement, isFrameOwnerElement());
class SubframeLoadingDisabler {
STACK_ALLOCATED();
public:
explicit SubframeLoadingDisabler(Node& root)
: m_root(root)
{
disabledSubtreeRoots().add(m_root);
}
~SubframeLoadingDisabler()
{
disabledSubtreeRoots().remove(m_root);
}
static bool canLoadFrame(HTMLFrameOwnerElement& owner)
{
if (owner.document().unloadStarted())
return false;
for (Node* node = &owner; node; node = node->parentOrShadowHostNode()) {
if (disabledSubtreeRoots().contains(node))
return false;
}
return true;
}
private:
static WillBeHeapHashCountedSet<RawPtrWillBeMember<Node>>& disabledSubtreeRoots();
RawPtrWillBeMember<Node> m_root;
};
DEFINE_TYPE_CASTS(HTMLFrameOwnerElement, FrameOwner, owner, owner->isLocal(), owner.isLocal());
} // namespace blink
#endif // HTMLFrameOwnerElement_h
|
