1 | /* |
2 | * Copyright (C) 2010 Apple 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 |
6 | * are met: |
7 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY |
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
15 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
16 | * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
17 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
18 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
19 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
20 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
22 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
23 | */ |
24 | |
25 | #pragma once |
26 | |
27 | #include "AudioHardwareListener.h" |
28 | #include "BridgeJSC.h" |
29 | #include "PlatformLayer.h" |
30 | #include "ScrollTypes.h" |
31 | #include "Widget.h" |
32 | #include <wtf/text/WTFString.h> |
33 | |
34 | #if PLATFORM(COCOA) |
35 | typedef struct objc_object* id; |
36 | #endif |
37 | |
38 | namespace JSC { |
39 | class ExecState; |
40 | class JSGlobalObject; |
41 | class JSObject; |
42 | } |
43 | |
44 | namespace WebCore { |
45 | |
46 | class Scrollbar; |
47 | |
48 | // PluginViewBase is a widget that all plug-in views inherit from, both in Webkit and WebKit2. |
49 | // It's intended as a stopgap measure until we can merge all plug-in views into a single plug-in view. |
50 | class PluginViewBase : public Widget { |
51 | public: |
52 | virtual PlatformLayer* platformLayer() const { return 0; } |
53 | #if PLATFORM(IOS_FAMILY) |
54 | virtual bool willProvidePluginLayer() const { return false; } |
55 | virtual void attachPluginLayer() { } |
56 | virtual void detachPluginLayer() { } |
57 | #endif |
58 | |
59 | virtual JSC::JSObject* scriptObject(JSC::JSGlobalObject*) { return 0; } |
60 | virtual void storageBlockingStateChanged() { } |
61 | virtual void privateBrowsingStateChanged(bool) { } |
62 | virtual bool getFormValue(String&) { return false; } |
63 | virtual bool scroll(ScrollDirection, ScrollGranularity) { return false; } |
64 | |
65 | // A plug-in can ask WebKit to handle scrollbars for it. |
66 | virtual Scrollbar* horizontalScrollbar() { return 0; } |
67 | virtual Scrollbar* verticalScrollbar() { return 0; } |
68 | |
69 | // FIXME: This is a hack that works around the fact that the WebKit2 PluginView isn't a ScrollableArea. |
70 | virtual bool wantsWheelEvents() { return false; } |
71 | virtual bool supportsKeyboardFocus() const { return false; } |
72 | virtual bool canProcessDrag() const { return false; } |
73 | |
74 | virtual bool shouldAlwaysAutoStart() const { return false; } |
75 | virtual void beginSnapshottingRunningPlugin() { } |
76 | |
77 | virtual bool shouldAllowNavigationFromDrags() const { return false; } |
78 | |
79 | bool isPluginViewBase() const override { return true; } |
80 | virtual bool shouldNotAddLayer() const { return false; } |
81 | |
82 | virtual AudioHardwareActivityType audioHardwareActivity() const { return AudioHardwareActivityType::Unknown; } |
83 | |
84 | virtual void setJavaScriptPaused(bool) { } |
85 | |
86 | virtual RefPtr<JSC::Bindings::Instance> bindingInstance() { return nullptr; } |
87 | |
88 | virtual void willDetachRenderer() { } |
89 | |
90 | #if PLATFORM(COCOA) |
91 | virtual id accessibilityAssociatedPluginParentForElement(Element*) const { return nullptr; } |
92 | #endif |
93 | |
94 | protected: |
95 | explicit PluginViewBase(PlatformWidget widget = 0) : Widget(widget) { } |
96 | }; |
97 | |
98 | } // namespace WebCore |
99 | |
100 | SPECIALIZE_TYPE_TRAITS_WIDGET(PluginViewBase, isPluginViewBase()) |
101 | |