src/content/shell/tools/plugin/TestObject.cpp

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 /*
   6  * Copyright (C) 2007 Apple Inc. All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  25  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  27  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include "content/shell/tools/plugin/test_object.h"
  31
  32 #include "PluginObject.h"
  33
  34 #include <string.h>
  35 #include <stdlib.h>
  36
  37 static bool testEnumerate(NPObject* npobj,
  38                           NPIdentifier** value,
  39                           uint32_t* count);
  40 static bool testHasMethod(NPObject*, NPIdentifier name);
  41 static bool testInvoke(NPObject*,
  42                        NPIdentifier name,
  43                        const NPVariant* args,
  44                        uint32_t argCount,
  45                        NPVariant* result);
  46 static bool testHasProperty(NPObject*, NPIdentifier name);
  47 static bool testGetProperty(NPObject*, NPIdentifier name, NPVariant*);
  48 static NPObject* testAllocate(NPP npp, NPClass* theClass);
  49 static void testDeallocate(NPObject* obj);
  50 static bool testConstruct(NPObject* obj,
  51                           const NPVariant* args,
  52                           uint32_t argCount,
  53                           NPVariant* result);
  54
  55 static NPClass g_test_class = {
  56     NP_CLASS_STRUCT_VERSION, testAllocate, testDeallocate, 0,
  57     testHasMethod,           testInvoke,   0,              testHasProperty,
  58     testGetProperty,         0,            0,              testEnumerate,
  59     testConstruct};
  60
  61
  62 static int g_test_object_count = 0;
  63
  64 typedef struct {
  65   NPObject header;
  66   NPObject* testObject;
  67 } TestObject;
  68
  69 static bool identifiersInitialized = false;
  70
  71 #define NUM_ENUMERATABLE_TEST_IDENTIFIERS 2
  72
  73 enum {
  74   ID_PROPERTY_FOO = 0,
  75   ID_PROPERTY_BAR,
  76   ID_PROPERTY_OBJECT_POINTER,
  77   ID_PROPERTY_TEST_OBJECT,
  78   ID_PROPERTY_REF_COUNT,
  79   NUM_TEST_IDENTIFIERS,
  80 };
  81
  82 static NPIdentifier testIdentifiers[NUM_TEST_IDENTIFIERS];
  83 static const NPUTF8* testIdentifierNames[NUM_TEST_IDENTIFIERS] = {
  84     "foo", "bar", "objectPointer", "testObject", "refCount", };
  85
  86 #define ID_THROW_EXCEPTION_METHOD 0
  87 #define NUM_METHOD_IDENTIFIERS 1
  88
  89 static NPIdentifier testMethodIdentifiers[NUM_METHOD_IDENTIFIERS];
  90 static const NPUTF8* testMethodIdentifierNames[NUM_METHOD_IDENTIFIERS] = {
  91     "throwException", };
  92
  93 static void initializeIdentifiers(void) {
  94   browser->getstringidentifiers(
  95       testIdentifierNames, NUM_TEST_IDENTIFIERS, testIdentifiers);
  96   browser->getstringidentifiers(
  97       testMethodIdentifierNames, NUM_METHOD_IDENTIFIERS, testMethodIdentifiers);
  98 }
  99
 100 static NPObject* testAllocate(NPP npp, NPClass* /*theClass*/) {
 101   TestObject* newInstance =
 102       static_cast<TestObject*>(malloc(sizeof(TestObject)));
 103   newInstance->testObject = 0;
 104   ++g_test_object_count;
 105
 106   if (!identifiersInitialized) {
 107     identifiersInitialized = true;
 108     initializeIdentifiers();
 109   }
 110
 111   return reinterpret_cast<NPObject*>(newInstance);
 112 }
 113
 114 static void testDeallocate(NPObject* obj) {
 115   TestObject* testObject = reinterpret_cast<TestObject*>(obj);
 116   if (testObject->testObject)
 117     browser->releaseobject(testObject->testObject);
 118
 119   --g_test_object_count;
 120   free(obj);
 121 }
 122
 123 static bool testHasMethod(NPObject*, NPIdentifier name) {
 124   for (unsigned i = 0; i < NUM_METHOD_IDENTIFIERS; i++) {
 125     if (testMethodIdentifiers[i] == name)
 126       return true;
 127   }
 128   return false;
 129 }
 130
 131 static bool testInvoke(NPObject* header,
 132                        NPIdentifier name,
 133                        const NPVariant* /*args*/,
 134                        uint32_t /*argCount*/,
 135                        NPVariant* /*result*/) {
 136   if (name == testMethodIdentifiers[ID_THROW_EXCEPTION_METHOD]) {
 137     browser->setexception(header, "test object throwException SUCCESS");
 138     return true;
 139   }
 140   return false;
 141 }
 142
 143 static bool testHasProperty(NPObject*, NPIdentifier name) {
 144   for (unsigned i = 0; i < NUM_TEST_IDENTIFIERS; i++) {
 145     if (testIdentifiers[i] == name)
 146       return true;
 147   }
 148
 149   return false;
 150 }
 151
 152 static bool testGetProperty(NPObject* npobj,
 153                             NPIdentifier name,
 154                             NPVariant* result) {
 155   if (name == testIdentifiers[ID_PROPERTY_FOO]) {
 156     char* mem = static_cast<char*>(browser->memalloc(4));
 157     strcpy(mem, "foo");
 158     STRINGZ_TO_NPVARIANT(mem, *result);
 159     return true;
 160   }
 161   if (name == testIdentifiers[ID_PROPERTY_BAR]) {
 162     char* mem = static_cast<char*>(browser->memalloc(4));
 163     strcpy(mem, "bar");
 164     STRINGZ_TO_NPVARIANT(mem, *result);
 165     return true;
 166   }
 167   if (name == testIdentifiers[ID_PROPERTY_OBJECT_POINTER]) {
 168     int32_t objectPointer =
 169         static_cast<int32_t>(reinterpret_cast<long long>(npobj));
 170
 171     INT32_TO_NPVARIANT(objectPointer, *result);
 172     return true;
 173   }
 174   if (name == testIdentifiers[ID_PROPERTY_TEST_OBJECT]) {
 175     TestObject* testObject = reinterpret_cast<TestObject*>(npobj);
 176     if (!testObject->testObject)
 177       testObject->testObject = browser->createobject(0, &g_test_class);
 178     browser->retainobject(testObject->testObject);
 179     OBJECT_TO_NPVARIANT(testObject->testObject, *result);
 180     return true;
 181   }
 182   if (name == testIdentifiers[ID_PROPERTY_REF_COUNT]) {
 183     INT32_TO_NPVARIANT(npobj->referenceCount, *result);
 184     return true;
 185   }
 186
 187   return false;
 188 }
 189
 190 static bool testEnumerate(NPObject* /*npobj*/,
 191                           NPIdentifier** value,
 192                           uint32_t* count) {
 193   *count = NUM_ENUMERATABLE_TEST_IDENTIFIERS;
 194
 195   *value = (NPIdentifier*)browser->memalloc(NUM_ENUMERATABLE_TEST_IDENTIFIERS *
 196                                             sizeof(NPIdentifier));
 197   memcpy(*value,
 198          testIdentifiers,
 199          sizeof(NPIdentifier) * NUM_ENUMERATABLE_TEST_IDENTIFIERS);
 200
 201   return true;
 202 }
 203
 204 static bool testConstruct(NPObject* npobj,
 205                           const NPVariant* /*args*/,
 206                           uint32_t /*argCount*/,
 207                           NPVariant* result) {
 208   browser->retainobject(npobj);
 209
 210   // Just return the same object.
 211   OBJECT_TO_NPVARIANT(npobj, *result);
 212   return true;
 213 }
 214
 215 namespace content {
 216
 217 NPClass* GetTestClass() { return &g_test_class; }
 218
 219 int GetTestObjectCount() { return g_test_object_count; }
 220
 221 }  // namespace content