Remove WTF namespace from isMainThread() calls
[WebKit-https.git] / Source / WebCore / bindings / v8 / V8DOMWrapper.h
1 /*
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30
31 #ifndef V8DOMWrapper_h
32 #define V8DOMWrapper_h
33
34 #include "Event.h"
35 #include "IsolatedWorld.h"
36 #include "Node.h"
37 #include "NodeFilter.h"
38 #include "PlatformString.h"
39 #include "V8CustomXPathNSResolver.h"
40 #include "V8Event.h"
41 #include "V8Utilities.h"
42 #include "V8XPathNSResolver.h"
43 #include "WrapperTypeInfo.h"
44 #include "XPathNSResolver.h"
45 #include <v8.h>
46
47 namespace WebCore {
48
49     class DOMWindow;
50     class EventTarget;
51     class Frame;
52     class Node;
53     class V8Proxy;
54     class WorkerContext;
55
56     enum ListenerLookupType {
57         ListenerFindOnly,
58         ListenerFindOrCreate,
59     };
60
61     class V8DOMWrapper {
62     public:
63 #ifndef NDEBUG
64         // Checks if a v8 value can be a DOM wrapper
65         static bool maybeDOMWrapper(v8::Handle<v8::Value>);
66 #endif
67
68         // Sets contents of a DOM wrapper.
69         static void setDOMWrapper(v8::Handle<v8::Object> object, WrapperTypeInfo* type, void* cptr)
70         {
71             ASSERT(object->InternalFieldCount() >= 2);
72             object->SetPointerInInternalField(v8DOMWrapperObjectIndex, cptr);
73             object->SetPointerInInternalField(v8DOMWrapperTypeIndex, type);
74         }
75
76         static v8::Handle<v8::Object> lookupDOMWrapper(v8::Handle<v8::FunctionTemplate> functionTemplate, v8::Handle<v8::Object> object)
77         {
78             return object.IsEmpty() ? object : object->FindInstanceInPrototypeChain(functionTemplate);
79         }
80
81         static WrapperTypeInfo* domWrapperType(v8::Handle<v8::Object>);
82
83         static v8::Handle<v8::Value> convertEventTargetToV8Object(PassRefPtr<EventTarget> eventTarget)
84         {
85             return convertEventTargetToV8Object(eventTarget.get());
86         }
87
88         static v8::Handle<v8::Value> convertEventTargetToV8Object(EventTarget*);
89
90         static PassRefPtr<EventListener> getEventListener(v8::Local<v8::Value> value, bool isAttribute, ListenerLookupType lookup);
91
92 #if ENABLE(XPATH)
93         // XPath-related utilities
94         static RefPtr<XPathNSResolver> getXPathNSResolver(v8::Handle<v8::Value> value, V8Proxy* proxy = 0);
95 #endif
96
97         // Wrap JS node filter in C++.
98         static PassRefPtr<NodeFilter> wrapNativeNodeFilter(v8::Handle<v8::Value>);
99
100         static v8::Local<v8::Function> getConstructorForContext(WrapperTypeInfo*, v8::Handle<v8::Context>);
101         static v8::Local<v8::Function> getConstructor(WrapperTypeInfo*, v8::Handle<v8::Value> objectPrototype);
102         static v8::Local<v8::Function> getConstructor(WrapperTypeInfo*, DOMWindow*);
103 #if ENABLE(WORKERS)
104         static v8::Local<v8::Function> getConstructor(WrapperTypeInfo*, WorkerContext*);
105 #endif
106
107         // Set JS wrapper of a DOM object, the caller in charge of increase ref.
108         static void setJSWrapperForDOMObject(void*, v8::Persistent<v8::Object>);
109         static void setJSWrapperForActiveDOMObject(void*, v8::Persistent<v8::Object>);
110         static void setJSWrapperForDOMNode(Node*, v8::Persistent<v8::Object>);
111
112         static bool isValidDOMObject(v8::Handle<v8::Value>);
113
114         // Check whether a V8 value is a wrapper of type |classType|.
115         static bool isWrapperOfType(v8::Handle<v8::Value>, WrapperTypeInfo*);
116
117         // Proper object lifetime support.
118         //
119         // Helper functions to make sure the child object stays alive
120         // while the parent is alive. Using the name more than once
121         // overwrites previous references making it possible to free
122         // old children.
123         static void setNamedHiddenReference(v8::Handle<v8::Object> parent, const char* name, v8::Handle<v8::Value> child);
124         static void setNamedHiddenWindowReference(Frame*, const char*, v8::Handle<v8::Value>);
125
126         static v8::Local<v8::Object> instantiateV8Object(V8Proxy* proxy, WrapperTypeInfo*, void* impl);
127
128         static v8::Handle<v8::Object> getWrapper(Node* node)
129         {
130             ASSERT(isMainThread());
131             if (LIKELY(!IsolatedWorld::count())) {
132                 v8::Persistent<v8::Object>* wrapper = node->wrapper();
133                 if (wrapper)
134                     return *wrapper;
135             }
136             return getWrapperSlow(node);
137         }
138
139     private:
140         static v8::Handle<v8::Object> getWrapperSlow(Node*);
141     };
142
143 }
144
145 #endif // V8DOMWrapper_h