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
37using namespace JSC;
38using namespace WebCore;
39
40namespace WebKit {
41
42const ClassInfo JSNPMethod::s_info = { "NPMethod", &InternalFunction::s_info, 0, 0 };
43
44JSNPMethod::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
51static 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
75CallType JSNPMethod::getCallData(CallData& callData)
76{
77    callData.native.function = callMethod;
78    return CallTypeHost;
79}
80
81} // namespace WebKit
82