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Diffstat (limited to 'resources/mediawiki/mediawiki.inspect.js')
| -rw-r--r-- | resources/mediawiki/mediawiki.inspect.js | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/resources/mediawiki/mediawiki.inspect.js b/resources/mediawiki/mediawiki.inspect.js deleted file mode 100644 index 2f2ca335..00000000 --- a/resources/mediawiki/mediawiki.inspect.js +++ /dev/null @@ -1,204 +0,0 @@ -/*! - * Tools for inspecting page composition and performance. - * - * @author Ori Livneh - * @since 1.22 - */ -/*jshint devel:true */ -( function ( mw, $ ) { - - function sortByProperty( array, prop, descending ) { - var order = descending ? -1 : 1; - return array.sort( function ( a, b ) { - return a[prop] > b[prop] ? order : a[prop] < b[prop] ? -order : 0; - } ); - } - - /** - * @class mw.inspect - * @singleton - */ - var inspect = { - - /** - * Calculate the byte size of a ResourceLoader module. - * - * @param {string} moduleName The name of the module - * @return {number|null} Module size in bytes or null - */ - getModuleSize: function ( moduleName ) { - var module = mw.loader.moduleRegistry[ moduleName ], - payload = 0; - - if ( mw.loader.getState( moduleName ) !== 'ready' ) { - return null; - } - - if ( !module.style && !module.script ) { - return null; - } - - // Tally CSS - if ( module.style && $.isArray( module.style.css ) ) { - $.each( module.style.css, function ( i, stylesheet ) { - payload += $.byteLength( stylesheet ); - } ); - } - - // Tally JavaScript - if ( $.isFunction( module.script ) ) { - payload += $.byteLength( module.script.toString() ); - } - - return payload; - }, - - /** - * Given CSS source, count both the total number of selectors it - * contains and the number which match some element in the current - * document. - * - * @param {string} css CSS source - * @return Selector counts - * @return {number} return.selectors Total number of selectors - * @return {number} return.matched Number of matched selectors - */ - auditSelectors: function ( css ) { - var selectors = { total: 0, matched: 0 }, - style = document.createElement( 'style' ), - sheet, rules; - - style.textContent = css; - document.body.appendChild( style ); - // Standards-compliant browsers use .sheet.cssRules, IE8 uses .styleSheet.rules… - sheet = style.sheet || style.styleSheet; - rules = sheet.cssRules || sheet.rules; - $.each( rules, function ( index, rule ) { - selectors.total++; - if ( document.querySelector( rule.selectorText ) !== null ) { - selectors.matched++; - } - } ); - document.body.removeChild( style ); - return selectors; - }, - - /** - * Get a list of all loaded ResourceLoader modules. - * - * @return {Array} List of module names - */ - getLoadedModules: function () { - return $.grep( mw.loader.getModuleNames(), function ( module ) { - return mw.loader.getState( module ) === 'ready'; - } ); - }, - - /** - * Print tabular data to the console, using console.table, console.log, - * or mw.log (in declining order of preference). - * - * @param {Array} data Tabular data represented as an array of objects - * with common properties. - */ - dumpTable: function ( data ) { - try { - // Bartosz made me put this here. - if ( window.opera ) { throw window.opera; } - // Use Function.prototype#call to force an exception on Firefox, - // which doesn't define console#table but doesn't complain if you - // try to invoke it. - console.table.call( console, data ); - return; - } catch (e) {} - try { - console.log( $.toJSON( data, null, 2 ) ); - return; - } catch (e) {} - mw.log( data ); - }, - - /** - * Generate and print one more reports. When invoked with no arguments, - * print all reports. - * - * @param {string...} [reports] Report names to run, or unset to print - * all available reports. - */ - runReports: function () { - var reports = arguments.length > 0 ? - Array.prototype.slice.call( arguments ) : - $.map( inspect.reports, function ( v, k ) { return k; } ); - - $.each( reports, function ( index, name ) { - inspect.dumpTable( inspect.reports[name]() ); - } ); - }, - - /** - * @class mw.inspect.reports - * @singleton - */ - reports: { - /** - * Generate a breakdown of all loaded modules and their size in - * kilobytes. Modules are ordered from largest to smallest. - */ - size: function () { - // Map each module to a descriptor object. - var modules = $.map( inspect.getLoadedModules(), function ( module ) { - return { - name: module, - size: inspect.getModuleSize( module ) - }; - } ); - - // Sort module descriptors by size, largest first. - sortByProperty( modules, 'size', true ); - - // Convert size to human-readable string. - $.each( modules, function ( i, module ) { - module.size = module.size > 1024 ? - ( module.size / 1024 ).toFixed( 2 ) + ' KB' : - ( module.size !== null ? module.size + ' B' : null ); - } ); - - return modules; - }, - - /** - * For each module with styles, count the number of selectors, and - * count how many match against some element currently in the DOM. - */ - css: function () { - var modules = []; - - $.each( inspect.getLoadedModules(), function ( index, name ) { - var css, stats, module = mw.loader.moduleRegistry[name]; - - try { - css = module.style.css.join(); - } catch (e) { return; } // skip - - stats = inspect.auditSelectors( css ); - modules.push( { - module: name, - allSelectors: stats.total, - matchedSelectors: stats.matched, - percentMatched: stats.total !== 0 ? - ( stats.matched / stats.total * 100 ).toFixed( 2 ) + '%' : null - } ); - } ); - sortByProperty( modules, 'allSelectors', true ); - return modules; - }, - } - }; - - if ( mw.config.get( 'debug' ) ) { - mw.log( 'mw.inspect: reports are not available in debug mode.' ); - } - - mw.inspect = inspect; - -}( mediaWiki, jQuery ) ); |