/src/mozilla-central/dom/plugins/ipc/PluginScriptableObjectUtils-inl.h

Source (jump to first uncovered line)
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * vim: sw=2 ts=2 et :
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "PluginScriptableObjectUtils.h"

namespace {

template<class InstanceType>
class VariantTraits;

template<>
class VariantTraits<mozilla::plugins::PluginInstanceParent>
{
public:
  typedef mozilla::plugins::PluginScriptableObjectParent ScriptableObjectType;
};

template<>
class VariantTraits<mozilla::plugins::PluginInstanceChild>
{
public:
  typedef mozilla::plugins::PluginScriptableObjectChild ScriptableObjectType;
};

} /* anonymous namespace */

inline bool
mozilla::plugins::ConvertToVariant(const Variant& aRemoteVariant,
                                   NPVariant& aVariant,
                                   PluginInstanceParent* aInstance)
{
  switch (aRemoteVariant.type()) {
    case Variant::Tvoid_t: {
      VOID_TO_NPVARIANT(aVariant);
      break;
    }

    case Variant::Tnull_t: {
      NULL_TO_NPVARIANT(aVariant);
      break;
    }

    case Variant::Tbool: {
      BOOLEAN_TO_NPVARIANT(aRemoteVariant.get_bool(), aVariant);
      break;
    }

    case Variant::Tint: {
      INT32_TO_NPVARIANT(aRemoteVariant.get_int(), aVariant);
      break;
    }

    case Variant::Tdouble: {
      DOUBLE_TO_NPVARIANT(aRemoteVariant.get_double(), aVariant);
      break;
    }

    case Variant::TnsCString: {
      const nsCString& string = aRemoteVariant.get_nsCString();
      const size_t length = string.Length();
      NPUTF8* buffer = static_cast<NPUTF8*>(::malloc(sizeof(NPUTF8) * (length + 1)));
      if (!buffer) {
        NS_ERROR("Out of memory!");
        return false;
      }

      std::copy(string.get(), string.get() + length, buffer);
      buffer[length] = '\0';
      STRINGN_TO_NPVARIANT(buffer, length, aVariant);
      break;
    }

    case Variant::TPPluginScriptableObjectParent: {
      NS_ASSERTION(aInstance, "Must have an instance!");
      NPObject* object = NPObjectFromVariant(aRemoteVariant);
      if (!object) {
        NS_ERROR("Er, this shouldn't fail!");
        return false;
      }

      const NPNetscapeFuncs* npn = GetNetscapeFuncs(aInstance);
      if (!npn) {
        NS_ERROR("Null netscape funcs!");
        return false;
      }

      npn->retainobject(object);
      OBJECT_TO_NPVARIANT(object, aVariant);
      break;
    }

    case Variant::TPPluginScriptableObjectChild: {
      NS_ASSERTION(!aInstance, "No instance should be given!");
      NS_ASSERTION(XRE_GetProcessType() == GeckoProcessType_Plugin,
                   "Should be running on child only!");

      NPObject* object = NPObjectFromVariant(aRemoteVariant);
      NS_ASSERTION(object, "Null object?!");

      PluginModuleChild::sBrowserFuncs.retainobject(object);
      OBJECT_TO_NPVARIANT(object, aVariant);
      break;
    }

    default:
      MOZ_ASSERT_UNREACHABLE("Shouldn't get here!");
      return false;
  }

  return true;
}

template <class InstanceType>
bool
mozilla::plugins::ConvertToRemoteVariant(const NPVariant& aVariant,
                                         Variant& aRemoteVariant,
                                         InstanceType* aInstance,
                                         bool aProtectActors)
{
  if (NPVARIANT_IS_VOID(aVariant)) {
    aRemoteVariant = mozilla::void_t();
  }
  else if (NPVARIANT_IS_NULL(aVariant)) {
    aRemoteVariant = mozilla::null_t();
  }
  else if (NPVARIANT_IS_BOOLEAN(aVariant)) {
    aRemoteVariant = NPVARIANT_TO_BOOLEAN(aVariant);
  }
  else if (NPVARIANT_IS_INT32(aVariant)) {
    aRemoteVariant = NPVARIANT_TO_INT32(aVariant);
  }
  else if (NPVARIANT_IS_DOUBLE(aVariant)) {
    aRemoteVariant = NPVARIANT_TO_DOUBLE(aVariant);
  }
  else if (NPVARIANT_IS_STRING(aVariant)) {
    NPString str = NPVARIANT_TO_STRING(aVariant);
    nsCString string(str.UTF8Characters, str.UTF8Length);
    aRemoteVariant = string;
  }
  else if (NPVARIANT_IS_OBJECT(aVariant)) {
    NPObject* object = NPVARIANT_TO_OBJECT(aVariant);

    typename VariantTraits<InstanceType>::ScriptableObjectType* actor =
      aInstance->GetActorForNPObject(object);

    if (!actor) {
      NS_ERROR("Null actor!");
      return false;
    }

    if (aProtectActors) {
      actor->Protect();
    }

    aRemoteVariant = actor;
  }
  else {
    MOZ_ASSERT_UNREACHABLE("Shouldn't get here!");
    return false;
  }

  return true;
}

Line	Count	Source (jump to first uncovered line)
1		/* -- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 --
2		* vim: sw=2 ts=2 et :
3		* This Source Code Form is subject to the terms of the Mozilla Public
4		* License, v. 2.0. If a copy of the MPL was not distributed with this
5		* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7		#include "PluginScriptableObjectUtils.h"
8
9		namespace {
10
11		template<class InstanceType>
12		class VariantTraits;
13
14		template<>
15		class VariantTraits<mozilla::plugins::PluginInstanceParent>
16		{
17		public:
18		typedef mozilla::plugins::PluginScriptableObjectParent ScriptableObjectType;
19		};
20
21		template<>
22		class VariantTraits<mozilla::plugins::PluginInstanceChild>
23		{
24		public:
25		typedef mozilla::plugins::PluginScriptableObjectChild ScriptableObjectType;
26		};
27
28		} /* anonymous namespace */
29
30		inline bool
31		mozilla::plugins::ConvertToVariant(const Variant& aRemoteVariant,
32		NPVariant& aVariant,
33		PluginInstanceParent* aInstance)
34	0	{
35	0	switch (aRemoteVariant.type()) {
36	0	case Variant::Tvoid_t: {
37	0	VOID_TO_NPVARIANT(aVariant);
38	0	break;
39	0	}
40	0
41	0	case Variant::Tnull_t: {
42	0	NULL_TO_NPVARIANT(aVariant);
43	0	break;
44	0	}
45	0
46	0	case Variant::Tbool: {
47	0	BOOLEAN_TO_NPVARIANT(aRemoteVariant.get_bool(), aVariant);
48	0	break;
49	0	}
50	0
51	0	case Variant::Tint: {
52	0	INT32_TO_NPVARIANT(aRemoteVariant.get_int(), aVariant);
53	0	break;
54	0	}
55	0
56	0	case Variant::Tdouble: {
57	0	DOUBLE_TO_NPVARIANT(aRemoteVariant.get_double(), aVariant);
58	0	break;
59	0	}
60	0
61	0	case Variant::TnsCString: {
62	0	const nsCString& string = aRemoteVariant.get_nsCString();
63	0	const size_t length = string.Length();
64	0	NPUTF8* buffer = static_cast<NPUTF8>(::malloc(sizeof(NPUTF8) (length + 1)));
65	0	if (!buffer) {
66	0	NS_ERROR("Out of memory!");
67	0	return false;
68	0	}
69	0
70	0	std::copy(string.get(), string.get() + length, buffer);
71	0	buffer[length] = '\0';
72	0	STRINGN_TO_NPVARIANT(buffer, length, aVariant);
73	0	break;
74	0	}
75	0
76	0	case Variant::TPPluginScriptableObjectParent: {
77	0	NS_ASSERTION(aInstance, "Must have an instance!");
78	0	NPObject* object = NPObjectFromVariant(aRemoteVariant);
79	0	if (!object) {
80	0	NS_ERROR("Er, this shouldn't fail!");
81	0	return false;
82	0	}
83	0
84	0	const NPNetscapeFuncs* npn = GetNetscapeFuncs(aInstance);
85	0	if (!npn) {
86	0	NS_ERROR("Null netscape funcs!");
87	0	return false;
88	0	}
89	0
90	0	npn->retainobject(object);
91	0	OBJECT_TO_NPVARIANT(object, aVariant);
92	0	break;
93	0	}
94	0
95	0	case Variant::TPPluginScriptableObjectChild: {
96	0	NS_ASSERTION(!aInstance, "No instance should be given!");
97	0	NS_ASSERTION(XRE_GetProcessType() == GeckoProcessType_Plugin,
98	0	"Should be running on child only!");
99	0
100	0	NPObject* object = NPObjectFromVariant(aRemoteVariant);
101	0	NS_ASSERTION(object, "Null object?!");
102	0
103	0	PluginModuleChild::sBrowserFuncs.retainobject(object);
104	0	OBJECT_TO_NPVARIANT(object, aVariant);
105	0	break;
106	0	}
107	0
108	0	default:
109	0	MOZ_ASSERT_UNREACHABLE("Shouldn't get here!");
110	0	return false;
111	0	}
112	0
113	0	return true;
114	0	}
115
116		template <class InstanceType>
117		bool
118		mozilla::plugins::ConvertToRemoteVariant(const NPVariant& aVariant,
119		Variant& aRemoteVariant,
120		InstanceType* aInstance,
121		bool aProtectActors)
122	0	{
123	0	if (NPVARIANT_IS_VOID(aVariant)) {
124	0	aRemoteVariant = mozilla::void_t();
125	0	}
126	0	else if (NPVARIANT_IS_NULL(aVariant)) {
127	0	aRemoteVariant = mozilla::null_t();
128	0	}
129	0	else if (NPVARIANT_IS_BOOLEAN(aVariant)) {
130	0	aRemoteVariant = NPVARIANT_TO_BOOLEAN(aVariant);
131	0	}
132	0	else if (NPVARIANT_IS_INT32(aVariant)) {
133	0	aRemoteVariant = NPVARIANT_TO_INT32(aVariant);
134	0	}
135	0	else if (NPVARIANT_IS_DOUBLE(aVariant)) {
136	0	aRemoteVariant = NPVARIANT_TO_DOUBLE(aVariant);
137	0	}
138	0	else if (NPVARIANT_IS_STRING(aVariant)) {
139	0	NPString str = NPVARIANT_TO_STRING(aVariant);
140	0	nsCString string(str.UTF8Characters, str.UTF8Length);
141	0	aRemoteVariant = string;
142	0	}
143	0	else if (NPVARIANT_IS_OBJECT(aVariant)) {
144	0	NPObject* object = NPVARIANT_TO_OBJECT(aVariant);
145	0
146	0	typename VariantTraits<InstanceType>::ScriptableObjectType* actor =
147	0	aInstance->GetActorForNPObject(object);
148	0
149	0	if (!actor) {
150	0	NS_ERROR("Null actor!");
151	0	return false;
152	0	}
153	0
154	0	if (aProtectActors) {
155	0	actor->Protect();
156	0	}
157	0
158	0	aRemoteVariant = actor;
159	0	}
160	0	else {
161	0	MOZ_ASSERT_UNREACHABLE("Shouldn't get here!");
162	0	return false;
163	0	}
164	0
165	0	return true;
166	0	} Unexecuted instantiation: bool mozilla::plugins::ConvertToRemoteVariant<mozilla::plugins::PluginInstanceParent>(_NPVariant const&, mozilla::plugins::Variant&, mozilla::plugins::PluginInstanceParent, bool) Unexecuted instantiation: bool mozilla::plugins::ConvertToRemoteVariant<mozilla::plugins::PluginInstanceChild>(_NPVariant const&, mozilla::plugins::Variant&, mozilla::plugins::PluginInstanceChild, bool)

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Created: 2018-09-25 14:53