1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef WEBKIT_ACTIVEX_SHIM_NPN_SCRIPTING_H__
#define WEBKIT_ACTIVEX_SHIM_NPN_SCRIPTING_H__
#include <string>
#include "webkit/glue/plugins/nphostapi.h"
namespace activex_shim {
class NPNWindow;
class NPNDocument;
// Simplifies querying and calling methods of a scriptable NPObject
class NPNScriptableObject {
public:
NPNScriptableObject();
// The caller should leave the NPObject to me and don't worry about releasing
// the NPObject.
NPNScriptableObject(NPP npp, NPObject* object);
// Implement copy constructor so that we could easily do things like:
// NPNScriptableObject location = window.GetObjectProperty("location");
// In this copy constructor we will ask the browser to add ref to the
// underlying NPObject (retainobject).
NPNScriptableObject(NPNScriptableObject& object);
// We will call the browser to release the object.
~NPNScriptableObject();
// We will take over the object. Thus we don't add ref here.
void Init(NPP npp, NPObject* object);
// Release container object and set it to NULL.
void Release();
// Reference counting for assignment
NPNScriptableObject& operator=(NPNScriptableObject& object);
bool IsValid() { return object_ != NULL; }
bool HasProperty(const std::string& name);
// Caller is responsible to release the ret value if succeeded.
bool GetProperty(const std::string& name, NPVariant* ret);
bool SetProperty(const std::string& name, const NPVariant& val);
// More specific Get/Set properties for convenience.
// If you don't care if the call was successful, you can pass succeeded as
// NULL. It is used to differentiate the case when we get an empty string,
// and don't know if it is because the call failed or not.
std::wstring GetStringProperty(const std::string& name, bool* succeeded);
std::wstring GetStringProperty(const std::string& name) {
return GetStringProperty(name, NULL);
}
bool SetStringProperty(const std::string& name, const std::wstring& val);
// See comments for GetStringProperty.
NPNScriptableObject GetObjectProperty(const std::string& name,
bool* succeeded);
NPNScriptableObject GetObjectProperty(const std::string& name) {
return GetObjectProperty(name, NULL);
}
// Invoke a method of the NPObject. format should be exactly like (only the
// ones listed here are supported):
// %s: the following param is a null terminated wchar_t* string.
// %d: the following param is an integer.
// Example: window.Invoke("open", "%s%s", L"http://b", L"_blank")
// This is only used internally so we have control over format string.
bool Invoke(const std::string& name, const char* format, ...);
private:
// Which NP instance created me. Used to pass as parameters in NPN_Invoke
// like calls.
NPP npp_;
// The NPObject that I am operating on.
NPObject* object_;
};
// Helper class to simplify use of NPVariant. Never add any virtual function
// or member variables to this class because we will use it like
// vector<NPVariantWrap> and pass the internal array as NPVariant* to NPAPI
// calls.
struct NPVariantWrap : public NPVariant {
NPVariantWrap();
NPVariantWrap(const NPVariantWrap& v);
~NPVariantWrap();
NPVariantWrap& operator=(const NPVariantWrap& v);
void Release();
void Copy(const NPVariant& v);
void SetBool(bool val);
void SetInt(int val);
void SetString(const std::wstring& val);
void SetUTF8String(const NPUTF8* p, unsigned int size);
};
} // namespace activex_shim
#endif // #ifndef WEBKIT_ACTIVEX_SHIM_NPN_SCRIPTING_H__
|
