summaryrefslogtreecommitdiff
path: root/includes/resourceloader/ResourceLoaderStartUpModule.php
blob: f31173780ed1837f182829eea2d87a742f689eac (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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
<?php
/**
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 * @author Trevor Parscal
 * @author Roan Kattouw
 */

class ResourceLoaderStartUpModule extends ResourceLoaderModule {
	
	/* Protected Members */

	protected $modifiedTime = array();

	/* Protected Methods */
	
	protected function getConfig( $context ) {
		global $wgLoadScript, $wgScript, $wgStylePath, $wgScriptExtension, 
			$wgArticlePath, $wgScriptPath, $wgServer, $wgContLang, 
			$wgVariantArticlePath, $wgActionPaths, $wgUseAjax, $wgVersion, 
			$wgEnableAPI, $wgEnableWriteAPI, $wgDBname, $wgEnableMWSuggest, 
			$wgSitename, $wgFileExtensions, $wgExtensionAssetsPath,
			$wgResourceLoaderMaxQueryLength;

		// Pre-process information
		$separatorTransTable = $wgContLang->separatorTransformTable();
		$separatorTransTable = $separatorTransTable ? $separatorTransTable : array();
		$compactSeparatorTransTable = array(
			implode( "\t", array_keys( $separatorTransTable ) ),
			implode( "\t", $separatorTransTable ),
		);
		$digitTransTable = $wgContLang->digitTransformTable();
		$digitTransTable = $digitTransTable ? $digitTransTable : array();
		$compactDigitTransTable = array(
			implode( "\t", array_keys( $digitTransTable ) ),
			implode( "\t", $digitTransTable ),
		);
		$mainPage = Title::newMainPage();
		
		// Build list of variables
		$vars = array(
			'wgLoadScript' => $wgLoadScript,
			'debug' => $context->getDebug(),
			'skin' => $context->getSkin(),
			'stylepath' => $wgStylePath,
			'wgUrlProtocols' => wfUrlProtocols(),
			'wgArticlePath' => $wgArticlePath,
			'wgScriptPath' => $wgScriptPath,
			'wgScriptExtension' => $wgScriptExtension,
			'wgScript' => $wgScript,
			'wgVariantArticlePath' => $wgVariantArticlePath,
			'wgActionPaths' => $wgActionPaths,
			'wgServer' => $wgServer,
			'wgUserLanguage' => $context->getLanguage(),
			'wgContentLanguage' => $wgContLang->getCode(),
			'wgVersion' => $wgVersion,
			'wgEnableAPI' => $wgEnableAPI,
			'wgEnableWriteAPI' => $wgEnableWriteAPI,
			'wgSeparatorTransformTable' => $compactSeparatorTransTable,
			'wgDigitTransformTable' => $compactDigitTransTable,
			'wgMainPageTitle' => $mainPage ? $mainPage->getPrefixedText() : null,
			'wgFormattedNamespaces' => $wgContLang->getFormattedNamespaces(),
			'wgNamespaceIds' => $wgContLang->getNamespaceIds(),
			'wgSiteName' => $wgSitename,
			'wgFileExtensions' => array_values( $wgFileExtensions ),
			'wgDBname' => $wgDBname,
			'wgExtensionAssetsPath' => $wgExtensionAssetsPath,
			'wgResourceLoaderMaxQueryLength' => $wgResourceLoaderMaxQueryLength,
		);
		if ( $wgContLang->hasVariants() ) {
			$vars['wgUserVariant'] = $wgContLang->getPreferredVariant();
		}
		if ( $wgUseAjax && $wgEnableMWSuggest ) {
			$vars['wgMWSuggestTemplate'] = SearchEngine::getMWSuggestTemplate();
		}
		
		wfRunHooks( 'ResourceLoaderGetConfigVars', array( &$vars ) );
		
		return $vars;
	}
	
	/**
	 * Gets registration code for all modules
	 *
	 * @param $context ResourceLoaderContext object
	 * @return String: JavaScript code for registering all modules with the client loader
	 */
	public static function getModuleRegistrations( ResourceLoaderContext $context ) {
		global $wgCacheEpoch;
		wfProfileIn( __METHOD__ );
		
		$out = '';
		$registrations = array();
		$resourceLoader = $context->getResourceLoader();
		foreach ( $resourceLoader->getModuleNames() as $name ) {
			$module = $resourceLoader->getModule( $name );
			// Support module loader scripts
			$loader = $module->getLoaderScript();
			if ( $loader !== false ) {
				$deps = $module->getDependencies();
				$group = $module->getGroup();
				$version = wfTimestamp( TS_ISO_8601_BASIC, 
					round( $module->getModifiedTime( $context ), -2 ) );
				$out .= ResourceLoader::makeCustomLoaderScript( $name, $version, $deps, $group, $loader );
			}
			// Automatically register module
			else {
				// getModifiedTime() is supposed to return a UNIX timestamp, but it doesn't always
				// seem to do that, and custom implementations might forget. Coerce it to TS_UNIX
				$moduleMtime = wfTimestamp( TS_UNIX, $module->getModifiedTime( $context ) );
				$mtime = max( $moduleMtime, wfTimestamp( TS_UNIX, $wgCacheEpoch ) );
				// Modules without dependencies or a group pass two arguments (name, timestamp) to 
				// mediaWiki.loader.register()
				if ( !count( $module->getDependencies() && $module->getGroup() === null ) ) {
					$registrations[] = array( $name, $mtime );
				}
				// Modules with dependencies but no group pass three arguments 
				// (name, timestamp, dependencies) to mediaWiki.loader.register()
				else if ( $module->getGroup() === null ) {
					$registrations[] = array(
						$name, $mtime,  $module->getDependencies() );
				}
				// Modules with dependencies pass four arguments (name, timestamp, dependencies, group) 
				// to mediaWiki.loader.register()
				else {
					$registrations[] = array(
						$name, $mtime,  $module->getDependencies(), $module->getGroup() );
				}
			}
		}
		$out .= ResourceLoader::makeLoaderRegisterScript( $registrations );
		
		wfProfileOut( __METHOD__ );
		return $out;
	}

	/* Methods */

	public function getScript( ResourceLoaderContext $context ) {
		global $IP, $wgLoadScript;

		$out = file_get_contents( "$IP/resources/startup.js" );
		if ( $context->getOnly() === 'scripts' ) {
			// Build load query for jquery and mediawiki modules
			$query = array(
				'modules' => implode( '|', array( 'jquery', 'mediawiki' ) ),
				'only' => 'scripts',
				'lang' => $context->getLanguage(),
				'skin' => $context->getSkin(),
				'debug' => $context->getDebug() ? 'true' : 'false',
				'version' => wfTimestamp( TS_ISO_8601_BASIC, round( max(
					$context->getResourceLoader()->getModule( 'jquery' )->getModifiedTime( $context ),
					$context->getResourceLoader()->getModule( 'mediawiki' )->getModifiedTime( $context )
				), -2 ) )
			);
			// Ensure uniform query order
			ksort( $query );
			
			// Startup function
			$configuration = $this->getConfig( $context );
			$registrations = self::getModuleRegistrations( $context );
			$out .= "var startUp = function() {\n" . 
				"\t$registrations\n" . 
				"\t" . Xml::encodeJsCall( 'mediaWiki.config.set', array( $configuration ) ) . 
				"};\n";
			
			// Conditional script injection
			$scriptTag = Html::linkedScript( $wgLoadScript . '?' . wfArrayToCGI( $query ) );
			$out .= "if ( isCompatible() ) {\n" . 
				"\t" . Xml::encodeJsCall( 'document.write', array( $scriptTag ) ) . 
				"}\n" . 
				"delete isCompatible;";
		}

		return $out;
	}

	public function getModifiedTime( ResourceLoaderContext $context ) {
		global $IP, $wgCacheEpoch;

		$hash = $context->getHash();
		if ( isset( $this->modifiedTime[$hash] ) ) {
			return $this->modifiedTime[$hash];
		}

		// Call preloadModuleInfo() on ALL modules as we're about
		// to call getModifiedTime() on all of them
		$loader = $context->getResourceLoader();
		$loader->preloadModuleInfo( $loader->getModuleNames(), $context );

		$this->modifiedTime[$hash] = filemtime( "$IP/resources/startup.js" );
		// ATTENTION!: Because of the line above, this is not going to cause
		// infinite recursion - think carefully before making changes to this 
		// code!
		$time = wfTimestamp( TS_UNIX, $wgCacheEpoch );
		foreach ( $loader->getModuleNames() as $name ) {
			$module = $loader->getModule( $name );
			$time = max( $time, $module->getModifiedTime( $context ) );
		}
		return $this->modifiedTime[$hash] = $time;
	}

	public function getFlip( $context ) {
		global $wgContLang;

		return $wgContLang->getDir() !== $context->getDirection();
	}
	
	/* Methods */
	
	public function getGroup() {
		return 'startup';
	}
}