Extension:SimpleViewer.php

<?php

1. Extension:SimpleViewer

These are the MediaWiki extensions we're using and/or developing. Please refer to the information on the mediawiki.org wiki for installation and usage details. Extensions here which have no corresponding mediawiki article are either not ready for use or have been superseded. You can also browse our extension code in our local Subversion repository or our GitHub mirror.

1. - Licenced under LGPL (http://www.gnu.org/copyleft/lesser.html)
2. - Author: User:RobCategory:Extensions created with Template:Extension
3. Template:Php

if (!defined('MEDIAWIKI')) die('Not an entry point.');

define('SIMPLEVIEWER_VERSION','0.0.1');

$egSimpleViewerMagic = "simpleviewer"; $egSimpleViewEnableHook = true; $wgHooks['ParserBeforeStrip'][] = 'efSimpleViewer';

$wgSimpleViewerUrlMagic = "magic_magic";

$wgHooks['LanguageGetMagic'][] = 'efSimpleViewerLanguageGetMagic';

$wgExtensionCredits['parserhook'][] = array( 'name' => 'SimpleViewer', 'author' => 'User:Rob', 'description' => 'Mediawiki integration with SimpleViewer from Airtight interactive', 'url' => 'http://www.organicdesign.co.nz/Extension:SimpleViewer.php', 'version' => SIMPLEVIEWER_VERSION );

class SimpleViewer {

# Constructor function __construct() { global $wgHooks,$wgParser,$egSimpleViewerMagic,$egSimpleViewerTag;

# Add the parser-function $wgParser->setFunctionHook($egSimpleViewerMagic,array($this,'magicSimpleviewer'));

}

# Expand the simpleviewer-magic function magicSimpleviewer(&$parser) { global $egSimpleViewerMagic, $wgOut, $wgScriptPath, $wgParser, $wgCanonicalNamespaceNames, $wgSimpleViewerUrlMagic; # Populate $argv with both named and numeric parameters $argv = array(); foreach (func_get_args() as $arg) if (!is_object($arg)) { if (preg_match('/^(.+?)\\s*=\\s*(.+)$/',$arg,$match)) $argv[$match[1]] = $match[2]; else $argv[] = $arg; }

       # list of keys that the parser funtion will accept
       # src is not included here because it is not passed on to the javascript
       $passparams = array('maxImageWidth', 'maxImageHeight', 'textColor', 'textColor', 
           'frameWidth', 'stagePadding', 'thumbnailColumns', 'thumbnailRows', 
           'navPosition', 'title', 'enableRightClickOpen');

/*foreach($argv as $key => $value) { if(in_array($key, $passparams)) $variables .= "fo.addVariable('$key', '$value'); ";

       }
       */
    /* @params
       src - page containing a bullet list of images
       :: what follows are taken directly from the SimpleViewer docs
       maxImageWidth - width of your largest image in pixels. Used to determine the best layout for your gallery.
       maxImageHeight - height of your largest image in pixels. Used to determine the best layout for your gallery.
       textColor - Color of title and caption text (hexidecimal color value e.g 0xff00ff).
       textColor - Color of image frame, navigation buttons and thumbnail frame (hexidecimal color value e.g 0xff00ff).
       frameWidth - Width of image frame in pixels.
       stagePadding - Distance between image and thumbnails and around gallery edge in pixels.
       thumbnailColumns - number of thumbnail rows. (To disable thumbnails completely set this value to 0.)
       thumbnailRows - number of thumbnail columns. (To disable thumbnails completely set this value to 0.)
       navPosition - Position of thumbnails relative to image. Can be "top", "bottom","left" or "right".
       title - Text to display as gallery Title
       enableRightClickOpen - Whether to display a 'Open In new Window...' dialog when right-clicking on an image. Can be "true" or "false"
       backgroundImagePath (optional) - Relative or absolute path to a JPG or SWF to load as the
       */
       

$title = Title::newFromText($argv['src']); $ns = $title->getNsText(); $db = $title->getDBkey(); $urlsafe = $ns.$wgSimpleViewerUrlMagic.$db;

#$wgParser->disableCache();

       #$wgOut->setHeaders();

       # add the javascript and build the embed code

$script = "

There was a problem. Please <a href='mailto:rob@mintmedia.co.nz?subject=problem with content'>tell me about it.</a>

<script type='text/javascript'>var fo = new SWFObject('$wgScriptPath/extensions/SimpleViewer/simpleviewer/viewer.swf?a', 'viewer', '100%', '500px', '7', '#000000'); fo.addVariable('preloaderColor', '0xaaaaaa'); fo.addVariable('xmlDataPath', '$wgScriptPath/index.php/SpecialSimpleViewer/$urlsafe'); ".$variables."fo.write('flashcontent');</script>";

1. /research/extensions/SimpleViewer/simpleviewer/Special:Test.xml

1. /research/index.php/Special:SpecialSimpleViewer/Mint_Media:Gallery

1. $wgScriptPath/index.php/Special:SpecialSimpleViewer/$urlsafe
2. /research/index.php/Special:SpecialSimpleViewer?src=Mint_Media:Gallery

1. $script = $wikitext;

# Return result with available parser flags return array( $script, 'noparse' => true, 'isHTML' => true );

}

# Needed in some versions to prevent Special:Version from breaking function __toString() { return 'SimpleViewer'; }

	}

1. Called from $wgExtensionFunctions array when initialising extensions

function efSimpleViewer( &$parser ) { global $egSimpleViewer, $wgSimpleViewerUrlMagic, $wgOut, $wgCanonicalNamespaceNames, $wgScriptPath, $wgServer, $egSimpleViewEnableHook; if (!$egSimpleViewEnableHook) return true; # add script in all cases,client caches external js file so not too bad for efficiency $wgOut->addScript("<script type=\"text/javascript\" src=\"$wgScriptPath/extensions/SimpleViewer/simpleviewer/swfobject.js\"></script>");

$egSimpleViewer = new SimpleViewer();

   #print($_REQUEST['title']);
   
   if(preg_match("#^SpecialSimpleViewer/#", $_REQUEST['title'])) {
   

header('Content-Type: text/xml');

$wgOut->disable(); wfResetOutputBuffers();

# is this an image request? $m = preg_match_all("#SpecialSimpleViewer/images/(\d+)/(.+)#i", $_REQUEST['title'], $matches, PREG_SET_ORDER); $size = $matches[0][1]; $file = $matches[0][2];

# if the url is of the form Special:SpecialSimpleViewer/images/200/foo.jpg # then send a redirect to get thumb.php to do the resizing if($m > 0) { header("Location: $wgScriptPath/thumb.php?f=$file&width=$size"); return false; }

# Redirect can make things a bit slower so may provide the image directly in future

# if we got this far it's not an image and we should output an XML file

# params: # src = article name containing a list of images for the gallery, article may also contain a DPL query (not working)

preg_match_all("#SpecialSimpleViewer/(.+)$#", $_REQUEST['title'], $matches, PREG_SET_ORDER); #print_r($matches); $t = str_replace($wgSimpleViewerUrlMagic, ':', $matches[0][1]); #print($t);

# get article content $title = Title::newFromText($t); # if the image article does not exist exit if(!$title) { print "title not valid"; return false; }

$article = new Article($title); $content = $article->getContent(); $egSimpleViewEnableHook = false;

$wikitext = $parser->preprocess( $content, $title, $parser->getOptions() );

#print($wikitext);

# parse the wikitext to expand templates and parser functions #$wgParser = new Parser();

#$wikitext = $wgParser->preprocess($wikitext, $title,new ParserOptions());

# need some heiristics here to handle a few reasonable image-article-list formats # we accept the default output format of DPL for now

# $wikitext =

• Image:Industrial-design-a-to-z.jpg
• etc

  # make a list of image names excluding the namespace (Image:) $ns_image = $wgCanonicalNamespaceNames[NS_IMAGE]; #print_r($wikitext);

  preg_match_all("/\[\[:?".$ns_image.":(.+?)(\||\]\])/mi", $wikitext, $image); #print_r($image);

  
  # standard header, other options to add later print("<?xml version='1.0' encoding='UTF-8'?> <simpleviewerGallery maxImageWidth='600' maxImageHeight='600' textColor='0xffffff' frameColor='0xaaaaaa' frameWidth='2' stagePadding='40' thumbnailColumns='3' thumbnailRows='3' navPosition='left' title= enableRightClickOpen='true' backgroundImagePath= imagePath='$wgScriptPath/index.php/SpecialSimpleViewer/images/500/' thumbPath='$wgScriptPath/index.php/SpecialSimpleViewer/images/100/'>"); # simpleviewer requires a TRAILING / on the imagePath and thumbPath params

  
  # loop and generate <image> containers foreach($image[1] as $i) { #$html = htmlentities(file_get_contents("$wgServer$wgScriptPath/index.php/$ns_image:$i?action=render")); $title = Title::newFromText($i, NS_IMAGE); $article = new Article($title); $html = htmlentities($parser->parse($article->getContent(), $title, $parser->getOptions(),true,false )->getText());

  print("<image><filename>$i</filename>$html</image>\n"); } $egSimpleViewEnableHook = true;

  # close document print("</simpleviewerGallery>"); return false;

     }
  

  return true; }

  function wfSetupSpecialSimpleViewer() { global $wgLanguageCode,$wgMessageCache;

  # Add the messages used by the specialpage if ($wgLanguageCode == 'en') { $wgMessageCache->addMessages(array( 'specialsimpleviewer' => 'SimpleGallery', # The friendly page title 'exampleMessage' => "Example message: $1", )); }

  # Add the specialpage to the environment SpecialPage::addPage(new SpecialSpecialSimpleViewer()); }

  1. Needed in MediaWiki >1.8.0 for magic word hooks to work properly

  function efSimpleViewerLanguageGetMagic(&$magicWords,$langCode = 0) { global $egSimpleViewerMagic; $magicWords[$egSimpleViewerMagic] = array(0,$egSimpleViewerMagic); return true; }