File: RenderEmbeddedObject.h

package info (click to toggle)
webkit2gtk 2.42.2-1~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 362,432 kB
  • sloc: cpp: 2,881,947; javascript: 282,447; ansic: 134,088; python: 43,789; ruby: 18,308; perl: 15,872; asm: 14,389; xml: 4,395; yacc: 2,350; sh: 2,074; java: 1,734; lex: 1,323; makefile: 296; pascal: 60
file content (103 lines) | stat: -rw-r--r-- 4,609 bytes parent folder | download | duplicates (4)
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
/*
 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
 *           (C) 2000 Simon Hausmann <hausmann@kde.org>
 * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010, 2012 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.
 *
 */

#pragma once

#include "RenderWidget.h"

namespace WebCore {

class MouseEvent;
class TextRun;

// Renderer for embeds and objects, often, but not always, rendered via plug-ins.
// For example, <embed src="foo.html"> does not invoke a plug-in.
class RenderEmbeddedObject final : public RenderWidget {
    WTF_MAKE_ISO_ALLOCATED(RenderEmbeddedObject);
public:
    RenderEmbeddedObject(HTMLFrameOwnerElement&, RenderStyle&&);
    virtual ~RenderEmbeddedObject();

    enum PluginUnavailabilityReason {
        PluginMissing,
        PluginCrashed,
        PluginBlockedByContentSecurityPolicy,
        InsecurePluginVersion,
        UnsupportedPlugin,
        PluginTooSmall
    };
    PluginUnavailabilityReason pluginUnavailabilityReason() const { return m_pluginUnavailabilityReason; };
    WEBCORE_EXPORT void setPluginUnavailabilityReason(PluginUnavailabilityReason);
    WEBCORE_EXPORT void setPluginUnavailabilityReasonWithDescription(PluginUnavailabilityReason, const String& description);

    bool isPluginUnavailable() const { return m_isPluginUnavailable; }

    WEBCORE_EXPORT void setUnavailablePluginIndicatorIsHidden(bool);

    void handleUnavailablePluginIndicatorEvent(Event*);

    bool allowsAcceleratedCompositing() const;

    LayoutRect unavailablePluginIndicatorBounds(const LayoutPoint& accumulatedOffset) const;

    const String& pluginReplacementTextIfUnavailable() const { return m_unavailablePluginReplacementText; }

private:
    void paintReplaced(PaintInfo&, const LayoutPoint&) final;
    void paint(PaintInfo&, const LayoutPoint&) final;

    CursorDirective getCursor(const LayoutPoint&, Cursor&) const final;

    void layout() final;
    void willBeDestroyed() final;

    ASCIILiteral renderName() const final { return "RenderEmbeddedObject"_s; }
    bool isEmbeddedObject() const final { return true; }

    bool showsUnavailablePluginIndicator() const { return isPluginUnavailable() && m_isUnavailablePluginIndicatorState != UnavailablePluginIndicatorState::Hidden; }

    bool requiresLayer() const final;

    bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) final;

    bool scroll(ScrollDirection, ScrollGranularity, unsigned stepCount = 1, Element** stopElement = nullptr, RenderBox* startBox = nullptr, const IntPoint& wheelEventAbsolutePoint = IntPoint()) final;
    bool logicalScroll(ScrollLogicalDirection, ScrollGranularity, unsigned stepCount, Element** stopElement) final;

    void setUnavailablePluginIndicatorIsPressed(bool);
    bool isInUnavailablePluginIndicator(const MouseEvent&) const;
    bool isInUnavailablePluginIndicator(const FloatPoint&) const;
    void getReplacementTextGeometry(const LayoutPoint& accumulatedOffset, FloatRect& contentRect, FloatRect& indicatorRect, FloatRect& replacementTextRect, FloatRect& arrowRect, FontCascade&, TextRun&, float& textWidth) const;
    LayoutRect getReplacementTextGeometry(const LayoutPoint& accumulatedOffset) const;

    bool m_isPluginUnavailable;
    enum class UnavailablePluginIndicatorState { Uninitialized, Hidden, Visible };
    UnavailablePluginIndicatorState m_isUnavailablePluginIndicatorState { UnavailablePluginIndicatorState::Uninitialized };
    PluginUnavailabilityReason m_pluginUnavailabilityReason;
    String m_unavailablePluginReplacementText;
    bool m_unavailablePluginIndicatorIsPressed;
    bool m_mouseDownWasInUnavailablePluginIndicator;
    String m_unavailabilityDescription;
};

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderEmbeddedObject, isEmbeddedObject())