|
1 /* |
|
2 * Copyright (c) 2005 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 * Static utility class for manipulating SMIL DOM |
|
16 * |
|
17 * |
|
18 */ |
|
19 |
|
20 |
|
21 #include <e32std.h> |
|
22 #include <gdi.h> |
|
23 |
|
24 #include <gmxmldocument.h> |
|
25 #include <gmxmlnode.h> |
|
26 #include <gmxmlelement.h> |
|
27 |
|
28 #include <ConformanceChecker.h> |
|
29 #include "UniSmilUtils.h" |
|
30 |
|
31 |
|
32 // --------------------------------------------------------- |
|
33 // UniSmilUtils::StringToIntValue |
|
34 // Convert a descriptor to TInt |
|
35 // --------------------------------------------------------- |
|
36 // |
|
37 EXPORT_C TInt UniSmilUtils::StringToIntValue( const TDesC& aString, |
|
38 TInt aDefault ) |
|
39 { |
|
40 TInt value = aDefault; |
|
41 if( aString.Length() != 0 ) |
|
42 { |
|
43 TChar c = aString[0]; |
|
44 if( c.IsDigit() ) |
|
45 { |
|
46 TLex luthor( aString ); |
|
47 luthor.Val( value ); |
|
48 } |
|
49 else |
|
50 { |
|
51 value = aDefault; |
|
52 } |
|
53 } |
|
54 return value; |
|
55 } |
|
56 |
|
57 |
|
58 // --------------------------------------------------------- |
|
59 // UniSmilUtils::IsMediaElem |
|
60 // --------------------------------------------------------- |
|
61 |
|
62 EXPORT_C TBool UniSmilUtils::IsMediaElem( CMDXMLNode* aNodePtr ) |
|
63 { |
|
64 TBool ret = EFalse; |
|
65 |
|
66 if ( aNodePtr->NodeType() == CMDXMLNode::EElementNode && |
|
67 UniSmilUtils::MediaElemType( aNodePtr) != EMsgMediaUnknown ) |
|
68 { |
|
69 ret = ETrue; |
|
70 } |
|
71 |
|
72 return ret; |
|
73 } |
|
74 |
|
75 // --------------------------------------------------------- |
|
76 // UniSmilUtils::NextNode |
|
77 // --------------------------------------------------------- |
|
78 |
|
79 EXPORT_C CMDXMLNode* UniSmilUtils::NextNode(CMDXMLNode* aRefNode) |
|
80 { |
|
81 if( aRefNode->FirstChild() ) |
|
82 { |
|
83 aRefNode = aRefNode->FirstChild(); |
|
84 } |
|
85 else |
|
86 { |
|
87 if( aRefNode->NextSibling() ) |
|
88 { |
|
89 // move to the next sibling if exists |
|
90 aRefNode = aRefNode->NextSibling(); |
|
91 } |
|
92 else |
|
93 { |
|
94 // No siblings at this level. Go up to parent. |
|
95 // might need to go up several layers so WHILE rather than IF |
|
96 while ( aRefNode && !aRefNode->NextSibling() ) |
|
97 { |
|
98 // no siblings, move back to parent. |
|
99 aRefNode = aRefNode->ParentNode(); |
|
100 } |
|
101 |
|
102 // Check if we stopped because node has siblings. |
|
103 if ( aRefNode && aRefNode->NextSibling() ) |
|
104 { |
|
105 aRefNode = aRefNode->NextSibling(); |
|
106 } |
|
107 } |
|
108 } |
|
109 |
|
110 return aRefNode; |
|
111 } |
|
112 |
|
113 // --------------------------------------------------------- |
|
114 // UniSmilUtils::RemoveChildren |
|
115 // --------------------------------------------------------- |
|
116 |
|
117 EXPORT_C void UniSmilUtils::RemoveChildren( |
|
118 CMDXMLNode* aParent ) |
|
119 { |
|
120 CMDXMLNode* child = NULL; |
|
121 |
|
122 if ( aParent ) |
|
123 { |
|
124 child = aParent->FirstChild(); |
|
125 } |
|
126 |
|
127 while ( child ) |
|
128 { |
|
129 if ( child->HasChildNodes() ) |
|
130 { |
|
131 UniSmilUtils::RemoveChildren( child ); |
|
132 } |
|
133 else |
|
134 { |
|
135 CMDXMLNode* n = child; |
|
136 child = child->NextSibling(); |
|
137 aParent->RemoveChild( n ); |
|
138 delete n; |
|
139 } |
|
140 } |
|
141 } |
|
142 |
|
143 |
|
144 // --------------------------------------------------------- |
|
145 // UniSmilUtils::ElemType |
|
146 // --------------------------------------------------------- |
|
147 |
|
148 EXPORT_C TMsgMediaType UniSmilUtils::MediaElemType(CMDXMLNode* aNodePtr) |
|
149 { |
|
150 TMsgMediaType type(EMsgMediaUnknown); |
|
151 |
|
152 if ( aNodePtr ) |
|
153 { |
|
154 TPtrC nName; |
|
155 nName.Set(aNodePtr->NodeName()); |
|
156 |
|
157 if ( nName.Compare(KSMILWREleAnimation) == 0 ) |
|
158 { |
|
159 type = EMsgMediaAnimation; |
|
160 } |
|
161 else if (nName.Compare(KSMILWREleAudio) == 0 ) |
|
162 { |
|
163 type = EMsgMediaAudio; |
|
164 } |
|
165 // SVG included. No special SVG element tag exist. |
|
166 else if (nName.Compare(KSMILWREleImg) == 0 ) |
|
167 { |
|
168 type = EMsgMediaImage; |
|
169 } |
|
170 else if (nName.Compare(KSMILWREleRef) == 0 ) |
|
171 { |
|
172 type = EMsgMediaRef; |
|
173 } |
|
174 else if ( nName.Compare(KSMILWREleText) == 0 ) |
|
175 { |
|
176 type = EMsgMediaText; |
|
177 } |
|
178 else if ( nName.Compare(KSMILWREleTextstream) == 0 ) |
|
179 { |
|
180 type = EMsgMediaTextStream; |
|
181 } |
|
182 else if ( nName.Compare(KSMILWREleVideo) == 0 ) |
|
183 { |
|
184 type = EMsgMediaVideo; |
|
185 } |
|
186 } |
|
187 |
|
188 return type; |
|
189 } |
|
190 |
|
191 // --------------------------------------------------------- |
|
192 // UniSmilUtils::GetId |
|
193 // --------------------------------------------------------- |
|
194 |
|
195 EXPORT_C TInt UniSmilUtils::GetId( CMDXMLNode* aNodePtr, TPtrC& aId ) |
|
196 { |
|
197 TInt ret = KErrNotSupported; |
|
198 |
|
199 if( aNodePtr && aNodePtr->NodeType() == CMDXMLNode::EElementNode ) |
|
200 { |
|
201 CMDXMLElement* e =(CMDXMLElement*) aNodePtr; |
|
202 if ( e->IsAttributeSpecified( KSMILWRParaId )) |
|
203 { |
|
204 e->GetAttribute(KSMILWRParaId, aId); |
|
205 ret = KErrNone; |
|
206 } |
|
207 else |
|
208 { |
|
209 ret = KErrNotFound; |
|
210 } |
|
211 } |
|
212 return ret; |
|
213 } |
|
214 |
|
215 // --------------------------------------------------------- |
|
216 // UniSmilUtils::GetMetaTag |
|
217 // --------------------------------------------------------- |
|
218 |
|
219 EXPORT_C TInt UniSmilUtils::GetMetaTag( CMDXMLNode* aNodePtr, |
|
220 TPtrC& aName, |
|
221 TPtrC& aContent ) |
|
222 { |
|
223 TInt ret = KErrNotFound; |
|
224 |
|
225 if( aNodePtr && |
|
226 aNodePtr->NodeType() == CMDXMLNode::EElementNode && |
|
227 aNodePtr->NodeName().Compare(KSMILWREleMeta) == 0) |
|
228 { |
|
229 CMDXMLElement* e = (CMDXMLElement*) aNodePtr; |
|
230 |
|
231 if ( e->IsAttributeSpecified( KSMILWRParaName ) && |
|
232 e->IsAttributeSpecified( KSMILWRParaContent )) |
|
233 { |
|
234 if (!e->GetAttribute(KSMILWRParaName, aName) && |
|
235 !e->GetAttribute(KSMILWRParaContent, aContent)) |
|
236 { |
|
237 ret = KErrNone; |
|
238 } |
|
239 } |
|
240 } |
|
241 return ret; |
|
242 } |
|
243 |
|
244 // --------------------------------------------------------- |
|
245 // UniSmilUtils::RegionId |
|
246 // --------------------------------------------------------- |
|
247 |
|
248 EXPORT_C TInt UniSmilUtils::GetRegionId( CMDXMLNode* aNodePtr, TPtrC& aId ) |
|
249 { |
|
250 TInt ret = KErrNotSupported; |
|
251 |
|
252 if ( aNodePtr ) |
|
253 { |
|
254 if ( UniSmilUtils::IsMediaElem( aNodePtr ) ) |
|
255 { |
|
256 ret = ((CMDXMLElement*)aNodePtr)->GetAttribute(KSMILWRParaRegion, aId); |
|
257 } |
|
258 } |
|
259 return ret; |
|
260 } |
|
261 |
|
262 // --------------------------------------------------------- |
|
263 // UniSmilUtils::GetSrc |
|
264 // --------------------------------------------------------- |
|
265 |
|
266 EXPORT_C TPtrC UniSmilUtils::GetSrcL( CMDXMLNode* aNodePtr ) |
|
267 { |
|
268 TPtrC src = TPtrC(); |
|
269 if ( aNodePtr ) |
|
270 { |
|
271 CMDXMLElement* e = (CMDXMLElement*) aNodePtr; |
|
272 |
|
273 if ( e && e->IsAttributeSpecified(KSMILWRParaSrc) ) |
|
274 { |
|
275 User::LeaveIfError( e->GetAttribute(KSMILWRParaSrc, src) ); |
|
276 } |
|
277 else |
|
278 { |
|
279 // Ok not to have src i.e. no default content. |
|
280 } |
|
281 } |
|
282 |
|
283 return src; |
|
284 } |
|
285 |
|
286 |
|
287 // --------------------------------------------------------- |
|
288 // UniSmilUtils::GetSmilTypeL |
|
289 // |
|
290 // --------------------------------------------------------- |
|
291 EXPORT_C TUniSmilType UniSmilUtils::GetSmilTypeL( CMDXMLDocument* aDom ) |
|
292 { |
|
293 if (!aDom) |
|
294 { |
|
295 return ENoSmil; |
|
296 } |
|
297 |
|
298 if ( UniSmilUtils::IsTemplateSmil( aDom ) ) |
|
299 { |
|
300 return ETemplateSmil; |
|
301 } |
|
302 else if ( !aDom->DocumentElement() || |
|
303 !aDom->DocumentElement()->FirstChild() ) |
|
304 { |
|
305 return ENoSmil; |
|
306 } |
|
307 else |
|
308 { |
|
309 CConformanceChecker* checker = CConformanceChecker::NewL(); |
|
310 CleanupStack::PushL( checker ); |
|
311 TBool isConf( EFalse ); |
|
312 |
|
313 isConf = checker->Check( aDom, EMmsSmil_v2_0, |
|
314 EAllowVideoTag | |
|
315 EAllowNonMilliseconds | |
|
316 EAllowAllAttributes | |
|
317 EAllowMixedRegionDimensions | |
|
318 EAllowAnyRegionNames ); |
|
319 |
|
320 CleanupStack::PopAndDestroy( checker ); |
|
321 |
|
322 if( isConf ) |
|
323 { |
|
324 return EMmsSmil; |
|
325 } |
|
326 |
|
327 } |
|
328 return E3GPPSmil; |
|
329 } |
|
330 |
|
331 |
|
332 // --------------------------------------------------------- |
|
333 // UniSmilUtils::IsTemplateSmil |
|
334 // |
|
335 // --------------------------------------------------------- |
|
336 |
|
337 EXPORT_C TBool UniSmilUtils::IsTemplateSmil( CMDXMLDocument* aDom ) |
|
338 { |
|
339 TBool ret( EFalse ); |
|
340 |
|
341 CMDXMLNode* n = aDom->DocumentElement()->FirstChild(); |
|
342 |
|
343 while ( n ) |
|
344 { |
|
345 if ( n->NodeName().Compare( KSMILWREleMeta ) == 0) |
|
346 { |
|
347 TPtrC v1, v2; |
|
348 if ( !UniSmilUtils::GetMetaTag( n, v1, v2 ) ) |
|
349 { |
|
350 if ( v1.Compare( KSMILMetaSmilProfile ) == 0 && |
|
351 v2.Compare( KSMILMetaSmilProfileValue ) == 0) |
|
352 { |
|
353 ret = ETrue; |
|
354 break; |
|
355 } |
|
356 } |
|
357 } |
|
358 else if ( n->NodeName().Compare( KSMILWREleBody ) == 0 ) |
|
359 { |
|
360 // Cannot anymore have metatags |
|
361 break; |
|
362 } |
|
363 n = UniSmilUtils::NextNode( n ); |
|
364 } |
|
365 return ret; |
|
366 } |
|
367 |
|
368 |
|
369 // EOF |