|
1 /* |
|
2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: |
|
15 * Header for the external player main class. |
|
16 * |
|
17 */ |
|
18 |
|
19 #ifndef __EXTERNAL_PLAYER_H__ |
|
20 #define __EXTERNAL_PLAYER_H__ |
|
21 |
|
22 #include <e32base.h> |
|
23 #include <e32msgqueue.h> |
|
24 #include <w32std.h> |
|
25 |
|
26 #include "PlayerWindow.h" |
|
27 |
|
28 // Note: the executable name is also used as the message queue name. |
|
29 _LIT( KExternalPlayerExe, "externalplayer.exe" ); |
|
30 _LIT( KExternalPlayerExe2, "externalplayer2.exe" ); |
|
31 |
|
32 enum TExternalPlayerCommands |
|
33 { |
|
34 EExternalPlayer_StartPlayback, |
|
35 EExternalPlayer_ExecuteOperation, |
|
36 EExternalPlayer_MoveWindow, |
|
37 EExternalPlayer_Shutdown |
|
38 }; |
|
39 |
|
40 struct TStartPlayback |
|
41 { |
|
42 TInt x; |
|
43 TInt y; |
|
44 TInt width; |
|
45 TInt height; |
|
46 TInt idOfParentWindowGroup; |
|
47 bool locationIsFilename; |
|
48 TInt length; |
|
49 unsigned char name[200]; |
|
50 }; |
|
51 |
|
52 struct TStartPlaybackReturn |
|
53 { |
|
54 TInt windowGroupId; |
|
55 }; |
|
56 |
|
57 struct TExecuteOperation |
|
58 { |
|
59 TInt operation; |
|
60 }; |
|
61 |
|
62 struct TMoveWindow |
|
63 { |
|
64 TInt centerX; |
|
65 TInt centerY; |
|
66 }; |
|
67 |
|
68 _LIT( KMsgQueuePrefix, "-msg=" ); |
|
69 |
|
70 // This is the client-side class for launching and controlling an external player executable. |
|
71 |
|
72 class CExternalPlayer : public CBase, public MPlayerCommands |
|
73 { |
|
74 public: |
|
75 |
|
76 ~CExternalPlayer() |
|
77 { |
|
78 Terminate(); |
|
79 } |
|
80 |
|
81 CExternalPlayer( RWsSession& aWs ) : iWs( aWs ) |
|
82 { |
|
83 } |
|
84 |
|
85 TInt SendMsg( TExternalPlayerCommands aMsg ) |
|
86 { |
|
87 TRequestStatus status; |
|
88 status = KRequestPending; |
|
89 iProcess.Rendezvous( status ); |
|
90 |
|
91 iMsgQueue.SendBlocking( aMsg ); |
|
92 |
|
93 User::WaitForRequest( status ); |
|
94 |
|
95 return status.Int(); |
|
96 } |
|
97 |
|
98 TInt Launch( const TDesC& aExeName, |
|
99 RWindowGroup& aParentWindowGroup, |
|
100 const TDesC& aLocation, |
|
101 bool aLocationIsFilename, // false means location is URL |
|
102 TPoint aTopRight, |
|
103 TSize aSize ) |
|
104 { |
|
105 // The base name for message queue and chunk is the name of the executable followed by the address of this instance. |
|
106 TBuf<80> nameBase; |
|
107 nameBase.Copy( aExeName ); |
|
108 nameBase.AppendFormat(_L("%08x"), this ); |
|
109 |
|
110 TBuf<100> commandLineArguments; |
|
111 commandLineArguments.Copy( KMsgQueuePrefix ); |
|
112 commandLineArguments.Append( nameBase ); |
|
113 |
|
114 TInt err = iProcess.Create( aExeName, commandLineArguments ); |
|
115 |
|
116 if( err == KErrNone ) |
|
117 { |
|
118 aParentWindowGroup.AllowProcessToCreateChildWindowGroups( iProcess.SecureId() ); |
|
119 |
|
120 iProcess.Resume(); |
|
121 |
|
122 TRequestStatus status; |
|
123 status = KRequestPending; |
|
124 iProcess.Rendezvous( status ); |
|
125 User::WaitForRequest( status ); |
|
126 |
|
127 err = status.Int(); |
|
128 |
|
129 if( err == KErrNone ) |
|
130 { |
|
131 err = iMsgQueue.OpenGlobal( nameBase ); |
|
132 } |
|
133 |
|
134 if( err == KErrNone ) |
|
135 { |
|
136 nameBase.Append( _L("_chunk") ); |
|
137 err = iChunk.OpenGlobal( nameBase, EFalse ); |
|
138 } |
|
139 |
|
140 if( err == KErrNone ) |
|
141 { |
|
142 iActive = true; |
|
143 |
|
144 // Send the start messages to the external player. |
|
145 |
|
146 TStartPlayback* chunk = (TStartPlayback*)iChunk.Base(); |
|
147 |
|
148 TPtr8 filename( chunk->name, 0, 200 ); |
|
149 filename.Copy( aLocation ); |
|
150 chunk->length = filename.Length(); |
|
151 chunk->locationIsFilename = aLocationIsFilename; |
|
152 |
|
153 chunk->x = aTopRight.iX; |
|
154 chunk->y = aTopRight.iY; |
|
155 chunk->width = aSize.iWidth; |
|
156 chunk->height = aSize.iHeight; |
|
157 chunk->idOfParentWindowGroup = aParentWindowGroup.Identifier(); |
|
158 err = SendMsg( EExternalPlayer_StartPlayback ); |
|
159 |
|
160 if( err == KErrNone ) |
|
161 { |
|
162 TStartPlaybackReturn* chunk = (TStartPlaybackReturn*)iChunk.Base(); |
|
163 iWindowGroupId = chunk->windowGroupId; |
|
164 } |
|
165 } |
|
166 else |
|
167 { |
|
168 iProcess.Kill( KErrCancel ); |
|
169 iProcess.Close(); |
|
170 } |
|
171 |
|
172 } |
|
173 |
|
174 return err; |
|
175 } |
|
176 |
|
177 // inherited from MPlayerCommands |
|
178 TInt ExecuteOperation( TInt aOperation ) |
|
179 { |
|
180 TInt err = KErrNone; |
|
181 |
|
182 if( iActive ) |
|
183 { |
|
184 TExecuteOperation* chunk = (TExecuteOperation*)iChunk.Base(); |
|
185 chunk->operation = aOperation; |
|
186 err = SendMsg( EExternalPlayer_ExecuteOperation ); |
|
187 } |
|
188 |
|
189 return err; |
|
190 } |
|
191 |
|
192 // inherited from MPlayerCommands |
|
193 void MoveWindow( TPoint aNewCenter ) |
|
194 { |
|
195 if( iActive ) |
|
196 { |
|
197 TMoveWindow* chunk = (TMoveWindow*)iChunk.Base(); |
|
198 chunk->centerX = aNewCenter.iX; |
|
199 chunk->centerY = aNewCenter.iY; |
|
200 SendMsg( EExternalPlayer_MoveWindow ); |
|
201 } |
|
202 } |
|
203 |
|
204 void SetOrdinalPosition( TInt /*aPosition*/ ) |
|
205 { |
|
206 if( iActive ) |
|
207 { |
|
208 // TODO: DEBUG THIS. HOW DOES WINDOW GROUP ORDINAL POSITION RELATE TO WINDOW ORDINAL POSITION? |
|
209 // iWs.SetWindowGroupOrdinalPosition( iWindowGroupId, aPosition ); |
|
210 } |
|
211 } |
|
212 |
|
213 void Terminate() |
|
214 { |
|
215 if( iActive ) |
|
216 { |
|
217 SendMsg( EExternalPlayer_Shutdown ); |
|
218 |
|
219 iProcess.Close(); |
|
220 iMsgQueue.Close(); |
|
221 |
|
222 iActive = false; |
|
223 } |
|
224 } |
|
225 |
|
226 private: |
|
227 |
|
228 RWsSession& iWs; |
|
229 RProcess iProcess; |
|
230 bool iActive; |
|
231 RMsgQueue<TExternalPlayerCommands> iMsgQueue; |
|
232 RChunk iChunk; |
|
233 TInt iWindowGroupId; |
|
234 |
|
235 }; |
|
236 |
|
237 #endif |
|
238 |