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 "NPObjectMessageReceiver.h"
28
29#if ENABLE(PLUGIN_PROCESS)
30
31#include "NPIdentifierData.h"
32#include "NPRemoteObjectMap.h"
33#include "NPRuntimeUtilities.h"
34#include "NPVariantData.h"
35
36namespace WebKit {
37
38PassOwnPtr<NPObjectMessageReceiver> NPObjectMessageReceiver::create(NPRemoteObjectMap* npRemoteObjectMap, Plugin* plugin, uint64_t npObjectID, NPObject* npObject)
39{
40    return adoptPtr(new NPObjectMessageReceiver(npRemoteObjectMap, plugin, npObjectID, npObject));
41}
42
43NPObjectMessageReceiver::NPObjectMessageReceiver(NPRemoteObjectMap* npRemoteObjectMap, Plugin* plugin, uint64_t npObjectID, NPObject* npObject)
44    : m_npRemoteObjectMap(npRemoteObjectMap)
45    , m_plugin(plugin)
46    , m_npObjectID(npObjectID)
47    , m_npObject(npObject)
48{
49    retainNPObject(m_npObject);
50}
51
52NPObjectMessageReceiver::~NPObjectMessageReceiver()
53{
54    m_npRemoteObjectMap->unregisterNPObject(m_npObjectID);
55
56    releaseNPObject(m_npObject);
57}
58
59void NPObjectMessageReceiver::deallocate()
60{
61    delete this;
62}
63
64void NPObjectMessageReceiver::hasMethod(const NPIdentifierData& methodNameData, bool& returnValue)
65{
66    if (!m_npObject->_class->hasMethod) {
67        returnValue = false;
68        return;
69    }
70
71    returnValue = m_npObject->_class->hasMethod(m_npObject, methodNameData.createNPIdentifier());
72}
73
74void NPObjectMessageReceiver::invoke(const NPIdentifierData& methodNameData, const Vector<NPVariantData>& argumentsData, bool& returnValue, NPVariantData& resultData)
75{
76    if (!m_npObject->_class->invoke) {
77        returnValue = false;
78        return;
79    }
80
81    Vector<NPVariant> arguments;
82    for (size_t i = 0; i < argumentsData.size(); ++i)
83        arguments.append(m_npRemoteObjectMap->npVariantDataToNPVariant(argumentsData[i], m_plugin));
84
85    NPVariant result;
86    VOID_TO_NPVARIANT(result);
87
88    returnValue = m_npObject->_class->invoke(m_npObject, methodNameData.createNPIdentifier(), arguments.data(), arguments.size(), &result);
89    if (returnValue) {
90        // Convert the NPVariant to an NPVariantData.
91        resultData = m_npRemoteObjectMap->npVariantToNPVariantData(result, m_plugin);
92    }
93
94    // Release all arguments.
95    for (size_t i = 0; i < argumentsData.size(); ++i)
96        releaseNPVariantValue(&arguments[i]);
97
98    // And release the result.
99    releaseNPVariantValue(&result);
100}
101
102void NPObjectMessageReceiver::invokeDefault(const Vector<NPVariantData>& argumentsData, bool& returnValue, NPVariantData& resultData)
103{
104    if (!m_npObject->_class->invokeDefault) {
105        returnValue = false;
106        return;
107    }
108
109    Vector<NPVariant> arguments;
110    for (size_t i = 0; i < argumentsData.size(); ++i)
111        arguments.append(m_npRemoteObjectMap->npVariantDataToNPVariant(argumentsData[i], m_plugin));
112
113    NPVariant result;
114    VOID_TO_NPVARIANT(result);
115
116    returnValue = m_npObject->_class->invokeDefault(m_npObject, arguments.data(), arguments.size(), &result);
117    if (returnValue) {
118        // Convert the NPVariant to an NPVariantData.
119        resultData = m_npRemoteObjectMap->npVariantToNPVariantData(result, m_plugin);
120    }
121
122    // Release all arguments.
123    for (size_t i = 0; i < argumentsData.size(); ++i)
124        releaseNPVariantValue(&arguments[i]);
125
126    // And release the result.
127    releaseNPVariantValue(&result);
128}
129
130void NPObjectMessageReceiver::hasProperty(const NPIdentifierData& propertyNameData, bool& returnValue)
131{
132    if (!m_npObject->_class->hasProperty) {
133        returnValue = false;
134        return;
135    }
136
137    returnValue = m_npObject->_class->hasProperty(m_npObject, propertyNameData.createNPIdentifier());
138}
139
140void NPObjectMessageReceiver::getProperty(const NPIdentifierData& propertyNameData, bool& returnValue, NPVariantData& resultData)
141{
142    if (!m_npObject->_class->getProperty) {
143        returnValue = false;
144        return;
145    }
146
147    NPVariant result;
148    VOID_TO_NPVARIANT(result);
149
150    returnValue = m_npObject->_class->getProperty(m_npObject, propertyNameData.createNPIdentifier(), &result);
151    if (!returnValue)
152        return;
153
154    // Convert the NPVariant to an NPVariantData.
155    resultData = m_npRemoteObjectMap->npVariantToNPVariantData(result, m_plugin);
156
157    // And release the result.
158    releaseNPVariantValue(&result);
159}
160
161void NPObjectMessageReceiver::setProperty(const NPIdentifierData& propertyNameData, const NPVariantData& propertyValueData, bool& returnValue)
162{
163    if (!m_npObject->_class->setProperty) {
164        returnValue = false;
165        return;
166    }
167
168    NPVariant propertyValue = m_npRemoteObjectMap->npVariantDataToNPVariant(propertyValueData, m_plugin);
169
170    // Set the property.
171    returnValue = m_npObject->_class->setProperty(m_npObject, propertyNameData.createNPIdentifier(), &propertyValue);
172
173    // And release the value.
174    releaseNPVariantValue(&propertyValue);
175}
176
177void NPObjectMessageReceiver::removeProperty(const NPIdentifierData& propertyNameData, bool& returnValue)
178{
179    if (!m_npObject->_class->removeProperty) {
180        returnValue = false;
181        return;
182    }
183
184    returnValue = m_npObject->_class->removeProperty(m_npObject, propertyNameData.createNPIdentifier());
185}
186
187void NPObjectMessageReceiver::enumerate(bool& returnValue, Vector<NPIdentifierData>& identifiersData)
188{
189    if (!NP_CLASS_STRUCT_VERSION_HAS_ENUM(m_npObject->_class) || !m_npObject->_class->enumerate) {
190        returnValue = false;
191        return;
192    }
193
194    NPIdentifier* identifiers = 0;
195    uint32_t identifierCount = 0;
196
197    returnValue = m_npObject->_class->enumerate(m_npObject, &identifiers, &identifierCount);
198    if (!returnValue)
199        return;
200
201    for (uint32_t i = 0; i < identifierCount; ++i)
202        identifiersData.append(NPIdentifierData::fromNPIdentifier(identifiers[i]));
203
204    npnMemFree(identifiers);
205}
206
207void NPObjectMessageReceiver::construct(const Vector<NPVariantData>& argumentsData, bool& returnValue, NPVariantData& resultData)
208{
209    if (!NP_CLASS_STRUCT_VERSION_HAS_CTOR(m_npObject->_class) || !m_npObject->_class->construct) {
210        returnValue = false;
211        return;
212    }
213
214    Vector<NPVariant> arguments;
215    for (size_t i = 0; i < argumentsData.size(); ++i)
216        arguments.append(m_npRemoteObjectMap->npVariantDataToNPVariant(argumentsData[i], m_plugin));
217
218    NPVariant result;
219    VOID_TO_NPVARIANT(result);
220
221    returnValue = m_npObject->_class->construct(m_npObject, arguments.data(), arguments.size(), &result);
222    if (returnValue) {
223        // Convert the NPVariant to an NPVariantData.
224        resultData = m_npRemoteObjectMap->npVariantToNPVariantData(result, m_plugin);
225    }
226
227    // Release all arguments.
228    for (size_t i = 0; i < argumentsData.size(); ++i)
229        releaseNPVariantValue(&arguments[i]);
230
231    // And release the result.
232    releaseNPVariantValue(&result);
233}
234
235} // namespace WebKit
236
237#endif // ENABLE(PLUGIN_PROCESS)
238
239