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| − | <?php
| + | {{svn|extensions|Workflow/Workflow.php}} |
| − | # Extension:Workflow{{Category:Extensions|Workflow}}{{Category:Code that uses voodoo|Workflow}}{{php}}
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| − | # - Licenced under LGPL (http://www.gnu.org/copyleft/lesser.html)
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| − | # - Author: [http://www.organicdesign.co.nz/nad User:Nad]{{Category:Extensions created with Template:Extension}}
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| − | # - Started: 2007-10-06
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| − | | |
| − | if (!defined('MEDIAWIKI')) die('Not an entry point.');
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| − | | |
| − | define('WORKFLOW_VERSION','0.0.3, 2007-10-24');
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| − | | |
| − | $wgWorkflowMagic = "workflow";
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| − | | |
| − | $wgExtensionCredits['parserhook'][] = $wgExtensionCredits['specialpage'][] = array(
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| − | 'name' => 'Workflow',
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| − | 'author' => '[http://www.organicdesign.co.nz/nad User:Nad]',
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| − | 'description' => 'Adds the ability for articles to be part of workflow sequences and easily moved dynamically between phases in the sequence using AJAX.',
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| − | 'url' => 'http://www.mediawiki.org/wiki/Extension:Workflow',
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| − | 'version' => WORKFLOW_VERSION
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| − | );
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| − | | |
| − | # Define a new specialpage for displaying a list of workflows
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| − | require_once "$IP/includes/SpecialPage.php";
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| − | class SpecialWorkflow extends SpecialPage {
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| − | | |
| − | function SpecialWorkflow() {
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| − | SpecialPage::SpecialPage(wfMsg('workflow'),'',true,false,false,false);
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| − | }
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| − |
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| − | # Render list
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| − | function execute($param) {
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| − | global $wgParser,$wgOut;
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| − | $wgParser->disableCache();
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| − | $this->setHeaders();
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| − | $wgOut->addWikiText('Not done yet...',true);
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| − | }
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| − | }
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| − |
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| − | # Define main workflow class containing all the functionality
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| − | class Workflow {
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| − | | |
| − | var $magic;
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| − | var $state;
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| − | var $name;
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| − | var $pagename;
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| − | var $update;
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| − | var $wf;
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| − | | |
| − | # Constructor
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| − | function Workflow() {
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| − | global $wgHooks,$wgExtensionFunctions,$wgWorkflowMagic,$wgExtraNamespaces;
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| − | $wgExtensionFunctions[] = array($this,'init');
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| − | $wgHooks['LanguageGetMagic'][] = array($this,'languageGetMagic');
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| − | $this->bypassAjaxDispatcher();
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| − | $this->magic = $wgWorkflowMagic;
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| − | $this->pagename = $_REQUEST['title'];
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| − | $this->wf = $wgExtraNamespaces[NS_WORKFLOW];
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| − | return true;
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| − | }
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| − | | |
| − | # Called from $wgExtensionFunctions array when initialising extensions
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| − | function init() {
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| − | global $wgParser,$wgLanguageCode,$wgMessageCache,$wgSiteNotice;
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| − | | |
| − | # Require NS_WORKFLOW to be defined before installing parser-function or javascript etc
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| − | if (!defined('NS_WORKFLOW')) {
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| − | $wgSiteNotice .= '<div class="usermessage">'.wfMsg('workflowMissingNamespace').'</div>';
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| − | return false;
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| − | }
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| − |
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| − | # Add the messages used (todo: move into i18n)
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| − | if ($wgLanguageCode == 'en') {
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| − | $wgMessageCache->addMessages(array(
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| − | 'workflow' => $this->wf,
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| − | 'workflowMissingNamespace' => 'The NS_WORKFLOW namespace must be defined. The workflow extension is disabled.'
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| − | ));
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| − | }
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| − |
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| − | # Add the specialpage to the environment
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| − | SpecialPage::addPage(new SpecialWorkflow());
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| − |
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| − | # Add the parser-function hook
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| − | $wgParser->setFunctionHook($this->magic,array($this,'expandMagic'));
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| − |
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| − | # Update a workflow state if flag set by Ajax processing
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| − | if ($this->update) $this->updateState();
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| − |
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| − | # Add the client-side scripts for changing states
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| − | $this->addJS();
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| − | }
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| − | | |
| − | # Expand the #tags to reveal the current state and hide the others and add javascript
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| − | # - note the hidden states mustn't be rendered because they contain categorisation links which shouldn't be processed
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| − | function expandMagic(&$parser) {
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| − | global $wgUser,$namespaceNames;
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| − | $tmpl = $namespaceNames[NS_TEMPLATE];
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| − | $cat = $namespaceNames[NS_CATEGORY];
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| − | | |
| − | # Extend catlinks information to include workflows
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| − | $this->extendCatlinks();
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| − | | |
| − | # Populate $argv with both named and numeric parameters
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| − | $argv = array();
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| − | $items = array();
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| − | $name = 'Untitled';
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| − | foreach (func_get_args() as $arg) if (!is_object($arg)) {
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| − | if (preg_match('/^(.+?)\\s*=\\s*(.+)$/',$arg,$match)) $argv[$match[1]] = $match[2]; else $name = $arg;
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| − | }
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| − | | |
| − | # Make a clone of the parser for parsing without affecting LinkHolder or catlinks arrays
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| − | $psr = new parser;
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| − | $opt = ParserOptions::newFromUser($wgUser);
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| − | | |
| − | # Get the list of workflow states from the Workflow article
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| − | $states = array();
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| − | $text = "[[{$this->wf}:$name]]";
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| − | $title = Title::newFromtext($name,NS_WORKFLOW);
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| − | if (is_object($title) && $title->exists()) {
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| − | $article = new Article($title);
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| − | $links = $psr->parse($article->getContent(),$title,$opt,true,true)->getLinks();
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| − | if (is_array($links[NS_MAIN])) $states = $links[NS_MAIN];
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| − | else $text = "[[{$this->wf}:$name|{$this->wf}:$name (".wfMsg('workflowMissingNamespace').")]]";
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| − | }
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| − | | |
| − | # Transclude each (use a parser clone for the ones which aren't current to avoid categorisation)
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| − | if (count($states)) {
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| − | $text = '';
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| − | foreach ($states as $dbk => $id) {
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| − | $title = Title::newFromText($dbk,NS_TEMPLATE);
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| − | $text .= $title->exists() ? "<br>($name)" : "<br>[[$template:$dbk]]";
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| − | #$text .= "[[$category:$name]]"; # if state is current
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| − | }
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| − | }
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| − |
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| − | # Surround the content in a clickable container which updates the displayed item and persistent state
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| − | # - container must call workflowSwitchState when clicked
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| − | # - container must update workflowStates[] and workflowLengths[]
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| − | | |
| − | return $text;
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| − | }
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| − | | |
| − | # Update the current state of a workflow item in the requested article
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| − | function updateState() {
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| − | $title = Title::newFromtext($this->pagename);
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| − | if (is_object($title) && $title->exists()) {
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| − | $article = new Article($title);
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| − | $text = $article->getContent();
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| − | preg_replace_callback("/\\{\\{#{$this->magic}:.*?id\\s*=\\s*['\"]?$id\\W.*?\\}\\}/s",array($this,'updateStateCallback'),$text,1,$count);
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| − | if ($count) $article->updateArticle($text,"summary",false,false);
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| − | }
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| − | }
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| − | | |
| − | # Replacement callback for updating tag state
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| − | function updateStateCallback($m) {
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| − | $m[0] = preg_replace("/(state\\s*=\\s*['\"]?)\\w+/","$1{$this->state}",$m[0],1,$count);
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| − | if ($count < 1) $m[0] = preg_replace("/(\\{\\{#{$this->magic}:/","$0state=${$this->state}|",$m[0]);
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| − | return $m[0];
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| − | }
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| − | | |
| − | # Extend catlinks information to include workflows
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| − | function extendCatlinks() {
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| − | static $done = 0;
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| − | if ($done++) return;
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| − | global $wgUser;
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| − | $skin = $wgUser->getSkin();
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| − | | |
| − | # Create a new Skin class (WorkflowSkin) by extending the existing one with overridden getCategoryLinks method
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| − | $class = get_class($skin);
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| − | eval("class WorkflowSkin extends {$class} ".'{
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| − | function getCategoryLinks() {
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| − | global $wgWorkflow;
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| − | return $wgWorkflow->renderWorkflowInfo(parent::getCategoryLinks());
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| − | }
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| − | }');
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| − | | |
| − | # Replace user's skin with a WorkflowSkin replica
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| − | $wgUser->mSkin = new WorkflowSkin();
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| − | foreach (array_keys(get_class_vars($class)) as $k) $wgUser->mSkin->$k = $skin->$k;
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| − | }
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| − |
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| − | # Render the workflow info which appears in the catlinks area
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| − | function renderWorkflowInfo(&$catlinks) {
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| − | $title = Title::makeTitle(NS_SPECIAL,wfMsg('workflow'));
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| − | $catlinks .= "<br /><a href='{$title->getLocalURL()}'>".wfMsg('workflow')."</a>:\n";
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| − | return $catlinks;
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| − | }
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| − | | |
| − | # Return just the catlinks to the client after updating a tag state
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| − | function returnCatlinks() {
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| − | global $wgUser,$wgOut;
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| − | $skin = $wgUser->getSkin();
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| − | $catlinks = is_object($skin) ? $skin->getCategoryLinks() : 'Error: no skin!';
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| − | $wgOut->disable();
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| − | while(@ob_end_clean());
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| − | if (in_array('Content-Encoding: gzip',headers_list())) $catlinks = gzencode($catlinks);
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| − | echo($catlinks);
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| − | return false;
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| − | }
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| − | | |
| − | # Make necessary Javascript functions available to the page
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| − | function addJS() {
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| − | global $wgOut,$wgJsMimeType;
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| − | $wgOut->addScript("<script type='$wgJsMimeType'>
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| − | var workflowStates = [];
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| − | var workflowLengths = [];
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| − | function workflowUpdateState(name) {
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| − | // make an ajax request, return into id=catlinks
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| − | // disable timer
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| − | var state = workflowStates[name];
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| − | sajax_do_call('{$this->magic}',[{$this->pagename},name,state],document.getElementById('catlinks'));
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| − | }
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| − | function workflowSwitchState(name) {
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| − | // one of the states has display='' the others 'none'
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| − | // enable and reset timer (if state different than last, otherwise ensure diabled)
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| − | // timer must call workflowUpdateState when expired
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| − | var state = workflowStates[name] = workflowStates[name] < workflowLengths[name] ? workflowStates[name]+1 : 0;
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| − | }
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| − | </script>");
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| − | }
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| − | | |
| − | # If it's a workflow-related ajax call, don't use dispatcher (because we need the catlinks generated by normal page render)
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| − | function bypassAjaxDispatcher() {
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| − | global $wgUseAjax,$wgHooks;
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| − | if ($wgUseAjax && $_REQUEST['action'] == 'ajax' && $_REQUEST['rs'] == $this->magic && is_array($_REQUEST['rsargs'])) {
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| − | list($_REQUEST['title'],$this->name,$this->state) = $_REQUEST['rsargs'];
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| − | $wgHooks['OutputPageBeforeHTML'][] = array($this,'returnCatlinks');
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| − | $this->update = true;
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| − | $_REQUEST['action'] = 'render';
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| − | }
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| − | else $this->update = false;
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| − | }
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| − | | |
| − | # Needed in some versions to prevent Special:Version from breaking
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| − | function __toString() { return 'Workflow'; }
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| − | | |
| − | # Set up the magic words
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| − | function languageGetMagic(&$magicWords,$langCode = 0) {
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| − | $magicWords[$this->magic] = array(0,$this->magic);
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| − | return true;
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| − | }
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| − |
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| − | }
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| − | | |
| − | $wgWorkflow = new Workflow();
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| − | ?>
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