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Side by Side Diff: content/renderer/pepper/npapi_glue.h

Issue 20165002: Move webkit/plugins/ppapi to content/renderer/pepper. (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: more more clang fun Created 7 years, 5 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef WEBKIT_PLUGINS_PPAPI_NPAPI_GLUE_H_ 5 #ifndef CONTENT_RENDERER_PEPPER_NPAPI_GLUE_H_
6 #define WEBKIT_PLUGINS_PPAPI_NPAPI_GLUE_H_ 6 #define CONTENT_RENDERER_PEPPER_NPAPI_GLUE_H_
7 7
8 #include "base/basictypes.h" 8 #include "base/basictypes.h"
9 #include "base/memory/scoped_ptr.h" 9 #include "base/memory/scoped_ptr.h"
10 #include "content/common/content_export.h"
10 #include "ppapi/c/pp_module.h" 11 #include "ppapi/c/pp_module.h"
11 #include "ppapi/c/pp_var.h" 12 #include "ppapi/c/pp_var.h"
12 #include "webkit/plugins/webkit_plugins_export.h"
13 13
14 struct NPObject; 14 struct NPObject;
15 typedef struct _NPVariant NPVariant; 15 typedef struct _NPVariant NPVariant;
16 typedef void* NPIdentifier; 16 typedef void* NPIdentifier;
17 17
18 namespace webkit { 18 namespace webkit {
19 namespace ppapi { 19 namespace ppapi {
20 20
21 class PluginInstanceImpl; 21 class PluginInstanceImpl;
22 class PluginObject; 22 class PluginObject;
23 23
24 // Utilities ------------------------------------------------------------------- 24 // Utilities -------------------------------------------------------------------
25 25
26 // Converts the given PP_Var to an NPVariant, returning true on success. 26 // Converts the given PP_Var to an NPVariant, returning true on success.
27 // False means that the given variant is invalid. In this case, the result 27 // False means that the given variant is invalid. In this case, the result
28 // NPVariant will be set to a void one. 28 // NPVariant will be set to a void one.
29 // 29 //
30 // The contents of the PP_Var will be copied unless the PP_Var corresponds to 30 // The contents of the PP_Var will be copied unless the PP_Var corresponds to
31 // an object. 31 // an object.
32 bool PPVarToNPVariant(PP_Var var, NPVariant* result); 32 bool PPVarToNPVariant(PP_Var var, NPVariant* result);
33 33
34 // Returns a PP_Var that corresponds to the given NPVariant. The contents of 34 // Returns a PP_Var that corresponds to the given NPVariant. The contents of
35 // the NPVariant will be copied unless the NPVariant corresponds to an 35 // the NPVariant will be copied unless the NPVariant corresponds to an
36 // object. This will handle all Variant types including POD, strings, and 36 // object. This will handle all Variant types including POD, strings, and
37 // objects. 37 // objects.
38 // 38 //
39 // The returned PP_Var will have a refcount of 1, this passing ownership of 39 // The returned PP_Var will have a refcount of 1, this passing ownership of
40 // the reference to the caller. This is suitable for returning to a plugin. 40 // the reference to the caller. This is suitable for returning to a plugin.
41 WEBKIT_PLUGINS_EXPORT PP_Var NPVariantToPPVar(PluginInstanceImpl* instance, 41 PP_Var NPVariantToPPVar(PluginInstanceImpl* instance, const NPVariant* variant);
42 const NPVariant* variant);
43 42
44 // Returns a NPIdentifier that corresponds to the given PP_Var. The contents 43 // Returns a NPIdentifier that corresponds to the given PP_Var. The contents
45 // of the PP_Var will be copied. Returns 0 if the given PP_Var is not a a 44 // of the PP_Var will be copied. Returns 0 if the given PP_Var is not a a
46 // string or integer type. 45 // string or integer type.
47 NPIdentifier PPVarToNPIdentifier(PP_Var var); 46 NPIdentifier PPVarToNPIdentifier(PP_Var var);
48 47
49 // Returns a PP_Var corresponding to the given identifier. In the case of 48 // Returns a PP_Var corresponding to the given identifier. In the case of
50 // a string identifier, the returned string will have a reference count of 1. 49 // a string identifier, the returned string will have a reference count of 1.
51 PP_Var NPIdentifierToPPVar(NPIdentifier id); 50 PP_Var NPIdentifierToPPVar(NPIdentifier id);
52 51
53 // Helper function to create a PP_Var of type object that contains the given 52 // Helper function to create a PP_Var of type object that contains the given
54 // NPObject for use byt he given module. Calling this function multiple times 53 // NPObject for use byt he given module. Calling this function multiple times
55 // given the same module + NPObject results in the same PP_Var, assuming that 54 // given the same module + NPObject results in the same PP_Var, assuming that
56 // there is still a PP_Var with a reference open to it from the previous 55 // there is still a PP_Var with a reference open to it from the previous
57 // call. 56 // call.
58 // 57 //
59 // The instance is necessary because we can have different instances pointing to 58 // The instance is necessary because we can have different instances pointing to
60 // the same NPObject, and we want to keep their refs separate. 59 // the same NPObject, and we want to keep their refs separate.
61 // 60 //
62 // If no ObjectVar currently exists corresponding to the NPObject, one is 61 // If no ObjectVar currently exists corresponding to the NPObject, one is
63 // created associated with the given module. 62 // created associated with the given module.
64 // 63 //
65 // Note: this could easily be changed to take a PP_Instance instead if that 64 // Note: this could easily be changed to take a PP_Instance instead if that
66 // makes certain calls in the future easier. Currently all callers have a 65 // makes certain calls in the future easier. Currently all callers have a
67 // PluginInstance so that's what we use here. 66 // PluginInstance so that's what we use here.
68 WEBKIT_PLUGINS_EXPORT PP_Var NPObjectToPPVar(PluginInstanceImpl* instance, 67 CONTENT_EXPORT PP_Var NPObjectToPPVar(PluginInstanceImpl* instance,
69 NPObject* object); 68 NPObject* object);
70 69
71 // This version creates a default v8::Context rather than using the one from 70 // This version creates a default v8::Context rather than using the one from
72 // the container of |instance|. It is only for use in unit tests, where we don't 71 // the container of |instance|. It is only for use in unit tests, where we don't
73 // have a real container for |instance|. 72 // have a real container for |instance|.
74 WEBKIT_PLUGINS_EXPORT PP_Var NPObjectToPPVarForTest( 73 CONTENT_EXPORT PP_Var NPObjectToPPVarForTest(PluginInstanceImpl* instance,
75 PluginInstanceImpl* instance, 74 NPObject* object);
76 NPObject* object);
77 75
78 // PPResultAndExceptionToNPResult ---------------------------------------------- 76 // PPResultAndExceptionToNPResult ----------------------------------------------
79 77
80 // Convenience object for converting a PPAPI call that can throw an exception 78 // Convenience object for converting a PPAPI call that can throw an exception
81 // and optionally return a value, back to the NPAPI layer which expects a 79 // and optionally return a value, back to the NPAPI layer which expects a
82 // NPVariant as a result. 80 // NPVariant as a result.
83 // 81 //
84 // Normal usage is that you will pass the result of exception() to the 82 // Normal usage is that you will pass the result of exception() to the
85 // PPAPI function as the exception output parameter. Then you will either 83 // PPAPI function as the exception output parameter. Then you will either
86 // call SetResult with the result of the PPAPI call, or 84 // call SetResult with the result of the PPAPI call, or
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257 // the exception itself has been stored. 255 // the exception itself has been stored.
258 bool has_exception_; 256 bool has_exception_;
259 257
260 // May be null if the consumer isn't interesting in catching exceptions. 258 // May be null if the consumer isn't interesting in catching exceptions.
261 PP_Var* exception_; 259 PP_Var* exception_;
262 }; 260 };
263 261
264 } // namespace ppapi 262 } // namespace ppapi
265 } // namespace webkit 263 } // namespace webkit
266 264
267 #endif // WEBKIT_PLUGINS_PPAPI_NPAPI_GLUE_H_ 265 #endif // CONTENT_RENDERER_PEPPER_NPAPI_GLUE_H_
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