blob: 8fe9ecb4aa27648abe079d1cefda4e23d7aa37db (
plain)
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
121
122
123
124
125
126
127
128
129
130
131
132
|
<?php
/**
* Handler for PNG images.
*
* @file
* @ingroup Media
*/
/**
* Handler for PNG images.
*
* @ingroup Media
*/
class PNGHandler extends BitmapHandler {
const BROKEN_FILE = '0';
/**
* @param File $image
* @param string $filename
* @return string
*/
function getMetadata( $image, $filename ) {
try {
$metadata = BitmapMetadataHandler::PNG( $filename );
} catch( Exception $e ) {
// Broken file?
wfDebug( __METHOD__ . ': ' . $e->getMessage() . "\n" );
return self::BROKEN_FILE;
}
return serialize($metadata);
}
/**
* @param $image File
* @return array|bool
*/
function formatMetadata( $image ) {
$meta = $image->getMetadata();
if ( !$meta ) {
return false;
}
$meta = unserialize( $meta );
if ( !isset( $meta['metadata'] ) || count( $meta['metadata'] ) <= 1 ) {
return false;
}
if ( isset( $meta['metadata']['_MW_PNG_VERSION'] ) ) {
unset( $meta['metadata']['_MW_PNG_VERSION'] );
}
return $this->formatMetadataHelper( $meta['metadata'] );
}
/**
* @param $image File
* @return bool
*/
function isAnimatedImage( $image ) {
$ser = $image->getMetadata();
if ($ser) {
$metadata = unserialize($ser);
if( $metadata['frameCount'] > 1 ) return true;
}
return false;
}
function getMetadataType( $image ) {
return 'parsed-png';
}
function isMetadataValid( $image, $metadata ) {
if ( $metadata === self::BROKEN_FILE ) {
// Do not repetitivly regenerate metadata on broken file.
return self::METADATA_GOOD;
}
wfSuppressWarnings();
$data = unserialize( $metadata );
wfRestoreWarnings();
if ( !$data || !is_array( $data ) ) {
wfDebug(__METHOD__ . ' invalid png metadata' );
return self::METADATA_BAD;
}
if ( !isset( $data['metadata']['_MW_PNG_VERSION'] )
|| $data['metadata']['_MW_PNG_VERSION'] != PNGMetadataExtractor::VERSION ) {
wfDebug(__METHOD__ . ' old but compatible png metadata' );
return self::METADATA_COMPATIBLE;
}
return self::METADATA_GOOD;
}
/**
* @param $image File
* @return string
*/
function getLongDesc( $image ) {
global $wgLang;
$original = parent::getLongDesc( $image );
wfSuppressWarnings();
$metadata = unserialize($image->getMetadata());
wfRestoreWarnings();
if( !$metadata || $metadata['frameCount'] <= 0 )
return $original;
$info = array();
$info[] = $original;
if ( $metadata['loopCount'] == 0 ) {
$info[] = wfMsgExt( 'file-info-png-looped', 'parseinline' );
} elseif ( $metadata['loopCount'] > 1 ) {
$info[] = wfMsgExt( 'file-info-png-repeat', 'parseinline', $metadata['loopCount'] );
}
if ( $metadata['frameCount'] > 0 ) {
$info[] = wfMsgExt( 'file-info-png-frames', 'parseinline', $metadata['frameCount'] );
}
if ( $metadata['duration'] ) {
$info[] = $wgLang->formatTimePeriod( $metadata['duration'] );
}
return $wgLang->commaList( $info );
}
}
|
