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''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "JSNPMethod.h"
28
29 #include "JSNPObject.h"
30 #include <JavaScriptCore/Error.h>
31 #include <JavaScriptCore/FunctionPrototype.h>
32 #include <JavaScriptCore/JSGlobalObject.h>
33 #include <WebCore/JSHTMLElement.h>
34 #include <WebCore/JSPluginElementFunctions.h>
35 #include <WebCore/NotImplemented.h>
36
37 using namespace JSC;
38 using namespace WebCore;
39
40 namespace WebKit {
41
42 const ClassInfo JSNPMethod::s_info = { "NPMethod", &InternalFunction::s_info, 0, 0 };
43
JSNPMethod(ExecState * exec,JSGlobalObject * globalObject,const Identifier & name,NPIdentifier npIdentifier)44 JSNPMethod::JSNPMethod(ExecState* exec, JSGlobalObject* globalObject, const Identifier& name, NPIdentifier npIdentifier)
45 : InternalFunction(&exec->globalData(), globalObject, createStructure(exec->globalData(), globalObject->functionPrototype()), name)
46 , m_npIdentifier(npIdentifier)
47 {
48 ASSERT(inherits(&s_info));
49 }
50
callMethod(ExecState * exec)51 static EncodedJSValue JSC_HOST_CALL callMethod(ExecState* exec)
52 {
53 JSNPMethod* jsNPMethod = static_cast<JSNPMethod*>(exec->callee());
54
55 JSValue thisValue = exec->hostThisValue();
56
57 // Check if we're calling a method on the plug-in script object.
58 if (thisValue.inherits(&JSHTMLElement::s_info)) {
59 JSHTMLElement* element = static_cast<JSHTMLElement*>(asObject(thisValue));
60
61 // Try to get the script object from the element
62 if (JSObject* scriptObject = pluginScriptObject(exec, element))
63 thisValue = scriptObject;
64 }
65
66 if (thisValue.inherits(&JSNPObject::s_info)) {
67 JSNPObject* jsNPObject = static_cast<JSNPObject*>(asObject(thisValue));
68
69 return JSValue::encode(jsNPObject->callMethod(exec, jsNPMethod->npIdentifier()));
70 }
71
72 return throwVMTypeError(exec);
73 }
74
getCallData(CallData & callData)75 CallType JSNPMethod::getCallData(CallData& callData)
76 {
77 callData.native.function = callMethod;
78 return CallTypeHost;
79 }
80
81 } // namespace WebKit
82