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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkMD5.h" | 8 #include "SkMD5.h" |
9 #include "SkMilestone.h" | 9 #include "SkMilestone.h" |
10 #include "SkPDFMetadata.h" | 10 #include "SkPDFMetadata.h" |
11 #include "SkPDFTypes.h" | 11 #include "SkPDFTypes.h" |
12 #include <utility> | 12 #include <utility> |
13 | 13 |
| 14 #define SKPDF_STRING(X) SKPDF_STRING_IMPL(X) |
| 15 #define SKPDF_STRING_IMPL(X) #X |
| 16 #define SKPDF_PRODUCER "Skia/PDF m" SKPDF_STRING(SK_MILESTONE) |
| 17 #define SKPDF_CUSTOM_PRODUCER_KEY "ProductionLibrary" |
| 18 |
14 static SkString pdf_date(const SkTime::DateTime& dt) { | 19 static SkString pdf_date(const SkTime::DateTime& dt) { |
15 int timeZoneMinutes = SkToInt(dt.fTimeZoneMinutes); | 20 int timeZoneMinutes = SkToInt(dt.fTimeZoneMinutes); |
16 char timezoneSign = timeZoneMinutes >= 0 ? '+' : '-'; | 21 char timezoneSign = timeZoneMinutes >= 0 ? '+' : '-'; |
17 int timeZoneHours = SkTAbs(timeZoneMinutes) / 60; | 22 int timeZoneHours = SkTAbs(timeZoneMinutes) / 60; |
18 timeZoneMinutes = SkTAbs(timeZoneMinutes) % 60; | 23 timeZoneMinutes = SkTAbs(timeZoneMinutes) % 60; |
19 return SkStringPrintf( | 24 return SkStringPrintf( |
20 "D:%04u%02u%02u%02u%02u%02u%c%02d'%02d'", | 25 "D:%04u%02u%02u%02u%02u%02u%c%02d'%02d'", |
21 static_cast<unsigned>(dt.fYear), static_cast<unsigned>(dt.fMonth), | 26 static_cast<unsigned>(dt.fYear), static_cast<unsigned>(dt.fMonth), |
22 static_cast<unsigned>(dt.fDay), static_cast<unsigned>(dt.fHour), | 27 static_cast<unsigned>(dt.fDay), static_cast<unsigned>(dt.fHour), |
23 static_cast<unsigned>(dt.fMinute), | 28 static_cast<unsigned>(dt.fMinute), |
24 static_cast<unsigned>(dt.fSecond), timezoneSign, timeZoneHours, | 29 static_cast<unsigned>(dt.fSecond), timezoneSign, timeZoneHours, |
25 timeZoneMinutes); | 30 timeZoneMinutes); |
26 } | 31 } |
27 | 32 |
28 #define SKPDF_STRING(X) SKPDF_STRING_IMPL(X) | |
29 #define SKPDF_STRING_IMPL(X) #X | |
30 | |
31 namespace { | 33 namespace { |
32 static const struct { | 34 static const struct { |
33 const char* const key; | 35 const char* const key; |
34 SkString SkDocument::PDFMetadata::*const valuePtr; | 36 SkString SkDocument::PDFMetadata::*const valuePtr; |
35 } gMetadataKeys[] = { | 37 } gMetadataKeys[] = { |
36 {"Title", &SkDocument::PDFMetadata::fTitle}, | 38 {"Title", &SkDocument::PDFMetadata::fTitle}, |
37 {"Author", &SkDocument::PDFMetadata::fAuthor}, | 39 {"Author", &SkDocument::PDFMetadata::fAuthor}, |
38 {"Subject", &SkDocument::PDFMetadata::fSubject}, | 40 {"Subject", &SkDocument::PDFMetadata::fSubject}, |
39 {"Keywords", &SkDocument::PDFMetadata::fKeywords}, | 41 {"Keywords", &SkDocument::PDFMetadata::fKeywords}, |
40 {"Creator", &SkDocument::PDFMetadata::fCreator}, | 42 {"Creator", &SkDocument::PDFMetadata::fCreator}, |
(...skipping 15 matching lines...) Expand all Loading... |
56 | 58 |
57 sk_sp<SkPDFObject> SkPDFMetadata::MakeDocumentInformationDict( | 59 sk_sp<SkPDFObject> SkPDFMetadata::MakeDocumentInformationDict( |
58 const SkDocument::PDFMetadata& metadata) { | 60 const SkDocument::PDFMetadata& metadata) { |
59 auto dict = sk_make_sp<SkPDFDict>(); | 61 auto dict = sk_make_sp<SkPDFDict>(); |
60 for (const auto keyValuePtr : gMetadataKeys) { | 62 for (const auto keyValuePtr : gMetadataKeys) { |
61 const SkString& value = metadata.*(keyValuePtr.valuePtr); | 63 const SkString& value = metadata.*(keyValuePtr.valuePtr); |
62 if (value.size() > 0) { | 64 if (value.size() > 0) { |
63 dict->insertString(keyValuePtr.key, value); | 65 dict->insertString(keyValuePtr.key, value); |
64 } | 66 } |
65 } | 67 } |
66 dict->insertString("Producer", "Skia/PDF m" SKPDF_STRING(SK_MILESTONE)); | 68 if (metadata.fProducer.isEmpty()) { |
| 69 dict->insertString("Producer", SKPDF_PRODUCER); |
| 70 } else { |
| 71 dict->insertString("Producer", metadata.fProducer); |
| 72 dict->insertString(SKPDF_CUSTOM_PRODUCER_KEY, SKPDF_PRODUCER); |
| 73 } |
67 if (metadata.fCreation.fEnabled) { | 74 if (metadata.fCreation.fEnabled) { |
68 dict->insertString("CreationDate", | 75 dict->insertString("CreationDate", |
69 pdf_date(metadata.fCreation.fDateTime)); | 76 pdf_date(metadata.fCreation.fDateTime)); |
70 } | 77 } |
71 if (metadata.fModified.fEnabled) { | 78 if (metadata.fModified.fEnabled) { |
72 dict->insertString("ModDate", pdf_date(metadata.fModified.fDateTime)); | 79 dict->insertString("ModDate", pdf_date(metadata.fModified.fDateTime)); |
73 } | 80 } |
74 return dict; | 81 return dict; |
75 } | 82 } |
76 | 83 |
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257 "%s" // ModifyDate | 264 "%s" // ModifyDate |
258 "%s" // CreateDate | 265 "%s" // CreateDate |
259 "%s" // xmp:CreatorTool | 266 "%s" // xmp:CreatorTool |
260 "<dc:format>application/pdf</dc:format>\n" | 267 "<dc:format>application/pdf</dc:format>\n" |
261 "%s" // dc:title | 268 "%s" // dc:title |
262 "%s" // dc:description | 269 "%s" // dc:description |
263 "%s" // author | 270 "%s" // author |
264 "%s" // keywords | 271 "%s" // keywords |
265 "<xmpMM:DocumentID>uuid:%s</xmpMM:DocumentID>\n" | 272 "<xmpMM:DocumentID>uuid:%s</xmpMM:DocumentID>\n" |
266 "<xmpMM:InstanceID>uuid:%s</xmpMM:InstanceID>\n" | 273 "<xmpMM:InstanceID>uuid:%s</xmpMM:InstanceID>\n" |
267 "<pdf:Producer>Skia/PDF m" SKPDF_STRING(SK_MILESTONE) "</pdf:Produce
r>\n" | 274 "%s" // pdf:Producer |
268 "%s" // pdf:Keywords | 275 "%s" // pdf:Keywords |
269 "</rdf:Description>\n" | 276 "</rdf:Description>\n" |
270 "</rdf:RDF>\n" | 277 "</rdf:RDF>\n" |
271 "</x:xmpmeta>\n" // Note: the standard suggests 4k of padding. | 278 "</x:xmpmeta>\n" // Note: the standard suggests 4k of padding. |
272 "<?xpacket end=\"w\"?>\n"; | 279 "<?xpacket end=\"w\"?>\n"; |
273 | 280 |
274 SkString creationDate; | 281 SkString creationDate; |
275 SkString modificationDate; | 282 SkString modificationDate; |
276 if (metadata.fCreation.fEnabled) { | 283 if (metadata.fCreation.fEnabled) { |
277 SkString tmp; | 284 SkString tmp; |
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298 // TODO: in theory, XMP can support multiple authors. Split on a delimiter? | 305 // TODO: in theory, XMP can support multiple authors. Split on a delimiter? |
299 SkString subject = escape_xml( | 306 SkString subject = escape_xml( |
300 metadata.fSubject, | 307 metadata.fSubject, |
301 "<dc:description><rdf:Alt><rdf:li xml:lang=\"x-default\">", | 308 "<dc:description><rdf:Alt><rdf:li xml:lang=\"x-default\">", |
302 "</rdf:li></rdf:Alt></dc:description>\n"); | 309 "</rdf:li></rdf:Alt></dc:description>\n"); |
303 SkString keywords1 = | 310 SkString keywords1 = |
304 escape_xml(metadata.fKeywords, "<dc:subject><rdf:Bag><rdf:li>", | 311 escape_xml(metadata.fKeywords, "<dc:subject><rdf:Bag><rdf:li>", |
305 "</rdf:li></rdf:Bag></dc:subject>\n"); | 312 "</rdf:li></rdf:Bag></dc:subject>\n"); |
306 SkString keywords2 = escape_xml(metadata.fKeywords, "<pdf:Keywords>", | 313 SkString keywords2 = escape_xml(metadata.fKeywords, "<pdf:Keywords>", |
307 "</pdf:Keywords>\n"); | 314 "</pdf:Keywords>\n"); |
| 315 // TODO: in theory, keywords can be a list too. |
308 | 316 |
309 // TODO: in theory, keywords can be a list too. | 317 SkString producer("<pdf:Producer>SKPDF_PRODUCER</pdf:Producer>\n"); |
| 318 if (!metadata.fProducer.isEmpty()) { |
| 319 // TODO: register a developer prefix to make |
| 320 // <skia:SKPDF_CUSTOM_PRODUCER_KEY> a real XML tag. |
| 321 producer = escape_xml( |
| 322 metadata.fProducer, "<pdf:Producer>", |
| 323 "</pdf:Producer>\n<!-- <skia:" SKPDF_CUSTOM_PRODUCER_KEY ">" |
| 324 SKPDF_PRODUCER "</skia:" SKPDF_CUSTOM_PRODUCER_KEY "> -->\n"); |
| 325 } |
| 326 |
310 SkString creator = escape_xml(metadata.fCreator, "<xmp:CreatorTool>", | 327 SkString creator = escape_xml(metadata.fCreator, "<xmp:CreatorTool>", |
311 "</xmp:CreatorTool>\n"); | 328 "</xmp:CreatorTool>\n"); |
312 SkString documentID = uuid_to_string(doc); // no need to escape | 329 SkString documentID = uuid_to_string(doc); // no need to escape |
313 SkASSERT(0 == count_xml_escape_size(documentID)); | 330 SkASSERT(0 == count_xml_escape_size(documentID)); |
314 SkString instanceID = uuid_to_string(instance); | 331 SkString instanceID = uuid_to_string(instance); |
315 SkASSERT(0 == count_xml_escape_size(instanceID)); | 332 SkASSERT(0 == count_xml_escape_size(instanceID)); |
316 return sk_make_sp<PDFXMLObject>(SkStringPrintf( | 333 return sk_make_sp<PDFXMLObject>(SkStringPrintf( |
317 templateString, modificationDate.c_str(), creationDate.c_str(), | 334 templateString, modificationDate.c_str(), creationDate.c_str(), |
318 creator.c_str(), title.c_str(), subject.c_str(), author.c_str(), | 335 creator.c_str(), title.c_str(), subject.c_str(), author.c_str(), |
319 keywords1.c_str(), documentID.c_str(), instanceID.c_str(), | 336 keywords1.c_str(), documentID.c_str(), instanceID.c_str(), |
320 keywords2.c_str())); | 337 producer.c_str(), keywords2.c_str())); |
321 } | 338 } |
322 | 339 |
| 340 #undef SKPDF_CUSTOM_PRODUCER_KEY |
| 341 #undef SKPDF_PRODUCER |
323 #undef SKPDF_STRING | 342 #undef SKPDF_STRING |
324 #undef SKPDF_STRING_IMPL | 343 #undef SKPDF_STRING_IMPL |
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