1/*
2 * Copyright (C) 2009, 2011 Google 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 are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "ScriptState.h"
33
34#include "Document.h"
35#include "Frame.h"
36#include "JSDOMWindowBase.h"
37#include "JSWorkerGlobalScope.h"
38#include "JSWorkletGlobalScope.h"
39#include "Node.h"
40#include "Page.h"
41#include "ScriptController.h"
42#include "WorkerGlobalScope.h"
43#include "WorkerScriptController.h"
44#include "WorkletGlobalScope.h"
45#include "WorkletScriptController.h"
46#include <JavaScriptCore/CallFrame.h>
47#include <JavaScriptCore/JSGlobalObject.h>
48#include <JavaScriptCore/StrongInlines.h>
49
50namespace WebCore {
51
52DOMWindow* domWindowFromExecState(JSC::ExecState* scriptState)
53{
54 JSC::JSGlobalObject* globalObject = scriptState->lexicalGlobalObject();
55 JSC::VM& vm = globalObject->vm();
56 if (!globalObject->inherits<JSDOMWindowBase>(vm))
57 return nullptr;
58 return &JSC::jsCast<JSDOMWindowBase*>(globalObject)->wrapped();
59}
60
61Frame* frameFromExecState(JSC::ExecState* scriptState)
62{
63 ScriptExecutionContext* context = scriptExecutionContextFromExecState(scriptState);
64 Document* document = is<Document>(context) ? downcast<Document>(context) : nullptr;
65 return document ? document->frame() : nullptr;
66}
67
68ScriptExecutionContext* scriptExecutionContextFromExecState(JSC::ExecState* scriptState)
69{
70 JSC::JSGlobalObject* globalObject = scriptState->lexicalGlobalObject();
71 JSC::VM& vm = globalObject->vm();
72 if (!globalObject->inherits<JSDOMGlobalObject>(vm))
73 return nullptr;
74 return JSC::jsCast<JSDOMGlobalObject*>(globalObject)->scriptExecutionContext();
75}
76
77JSC::ExecState* mainWorldExecState(Frame* frame)
78{
79 if (!frame)
80 return nullptr;
81 return frame->windowProxy().jsWindowProxy(mainThreadNormalWorld())->window()->globalExec();
82}
83
84JSC::ExecState* execStateFromNode(DOMWrapperWorld& world, Node* node)
85{
86 if (!node)
87 return nullptr;
88 Frame* frame = node->document().frame();
89 if (!frame)
90 return nullptr;
91 if (!frame->script().canExecuteScripts(NotAboutToExecuteScript))
92 return nullptr;
93 return frame->script().globalObject(world)->globalExec();
94}
95
96JSC::ExecState* execStateFromPage(DOMWrapperWorld& world, Page* page)
97{
98 return page ? page->mainFrame().script().globalObject(world)->globalExec() : nullptr;
99}
100
101JSC::ExecState* execStateFromWorkerGlobalScope(WorkerGlobalScope& workerGlobalScope)
102{
103 return workerGlobalScope.script()->workerGlobalScopeWrapper()->globalExec();
104}
105
106#if ENABLE(CSS_PAINTING_API)
107JSC::ExecState* execStateFromWorkletGlobalScope(WorkletGlobalScope& workletGlobalScope)
108{
109 if (!workletGlobalScope.script())
110 return nullptr;
111 return workletGlobalScope.script()->workletGlobalScopeWrapper()->globalExec();
112}
113#endif
114
115}
116