File: ns4xPluginStream.h

package info (click to toggle)
mozilla 19981008-0.1
  • links: PTS
  • area: main
  • in suites: slink
  • size: 110,368 kB
  • ctags: 148,791
  • sloc: ansic: 674,811; cpp: 548,132; makefile: 20,384; java: 13,005; sh: 3,638; perl: 2,433; yacc: 1,136; asm: 657; lisp: 148; objc: 51; pascal: 41; awk: 20; sed: 18; xml: 13; csh: 11
file content (115 lines) | stat: -rw-r--r-- 3,164 bytes parent folder | download
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
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.0 (the "NPL"); you may not use this file except in
 * compliance with the NPL.  You may obtain a copy of the NPL at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the NPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
 * for the specific language governing rights and limitations under the
 * NPL.
 *
 * The Initial Developer of this code under the NPL is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
 * Reserved.
 */

#ifndef ns4xPluginStream_h__
#define ns4xPluginStream_h__

#define _UINT32
#define _INT32

#include "jri.h"                 // XXX should be jni.h
#include "nsplugin.h"
#include "ns4xPluginInstance.h"

////////////////////////////////////////////////////////////////////////

/**
 * A 5.0 wrapper for a 4.x plugin stream.
 */
class ns4xPluginStream : public nsIPluginStream
{
public:

    /**
     * Construct a new 4.x plugin stream associated with the specified
     * instance and stream peer.
     */
    ns4xPluginStream();
    ~ns4xPluginStream();

    NS_DECL_ISUPPORTS

    /**
     * Do internal initialization. This actually calls into the 4.x plugin
     * to create the stream, and may fail (which is why it's separate from
     * the constructor).
     */
    NS_METHOD
    Initialize(ns4xPluginInstance* instance, nsIPluginStreamPeer* peer);

    ////////////////////////////////////////////////////////////////////////
    // nsIPluginStream methods

    // (Corresponds to NPP_Write and NPN_Write.)
    NS_IMETHOD
    Write(const char* buffer, PRInt32 offset, PRInt32 len, PRInt32 *aWriteCount);

    // (Corresponds to NPP_NewStream's stype return parameter.)
    NS_IMETHOD
    GetStreamType(nsPluginStreamType *result);

    // (Corresponds to NPP_StreamAsFile.)
    NS_IMETHOD
    AsFile(const char* fname);

    NS_IMETHOD
    Close(void);

    ////////////////////////////////////////////////////////////////////////
    // Methods specific to ns4xPluginStream

protected:

    /**
     * The plugin instance to which this stream belongs.
     */
    ns4xPluginInstance* fInstance;

    /**
     * The peer associated with this stream.
     */
    nsIPluginStreamPeer* fPeer;

    /**
     * The type of stream, for the peer's use.
     */
    nsPluginStreamType fStreamType;

    /**
     * The 4.x-style structure used to contain stream information.
     * This is what actually gets used to communicate with the plugin.
     */
    NPStream fNPStream;

    /** 
     * Set to <b>TRUE</b> if the peer implements
     * <b>NPISeekablPluginStreamPeer</b>.
     */
    PRBool fSeekable;

    /** 
     * Tracks the position in the content that is being
     * read. 4.x-style plugins expect to be told the offset in the
     * buffer that they should read <i>to</i>, even though it's always
     * done serially.
     */
    PRUint32 fPosition;
};


#endif // ns4xPluginStream_h__