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Side by Side Diff: gpu/np_utils/default_np_object.h

Issue 481007: Deleted np_utils library. (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: Created 11 years ago
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1 // Copyright (c) 2006-2008 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 #ifndef GPU_NP_UTILS_DEFAULT_NP_OBJECT_H_
6 #define GPU_NP_UTILS_DEFAULT_NP_OBJECT_H_
7
8 #include "base/basictypes.h"
9 #include "gpu/np_utils/np_headers.h"
10
11 namespace np_utils {
12
13 class BaseNPDispatcher;
14
15 // This class implements each of the functions in the NPClass interface. They
16 // all return error by default. Note that these are not virtual functions and
17 // this is not an interface. This class can be used as a mixin so that an
18 // NPObject class does not need to implement every NPClass function but rather
19 // inherits a default from DefaultNPObject.
20 template <typename RootClass>
21 class DefaultNPObject : public RootClass {
22 public:
23 void Invalidate() {}
24
25 bool HasMethod(NPIdentifier name) {
26 return false;
27 }
28
29 bool Invoke(NPIdentifier name,
30 const NPVariant* args,
31 uint32_t num_args,
32 NPVariant* result) {
33 return false;
34 }
35
36 bool InvokeDefault(const NPVariant* args,
37 uint32_t num_args,
38 NPVariant* result) {
39 return false;
40 }
41
42 bool HasProperty(NPIdentifier name) {
43 return false;
44 }
45
46 bool GetProperty(NPIdentifier name, NPVariant* result) {
47 return false;
48 }
49
50 bool SetProperty(NPIdentifier name, const NPVariant* value) {
51 return false;
52 }
53
54 bool RemoveProperty(NPIdentifier name) {
55 return false;
56 }
57
58 bool Enumerate(NPIdentifier** names,
59 uint32_t* count) {
60 *names = NULL;
61 *count = 0;
62 return true;
63 }
64
65 bool Construct(const NPVariant* args,
66 uint32_t num_args,
67 NPVariant* result) {
68 return false;
69 }
70
71 static BaseNPDispatcher* GetDispatcherChain() {
72 return NULL;
73 }
74
75 protected:
76 DefaultNPObject() {}
77 virtual ~DefaultNPObject() {}
78
79 private:
80 DISALLOW_COPY_AND_ASSIGN(DefaultNPObject);
81 };
82 } // namespace np_utils
83
84 #endif // GPU_NP_UTILS_DEFAULT_NP_OBJECT_H_
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