MediaWiki:Common.js

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( function() {
'use strict';

/**
 * Instead of cluttering up the global scope with
 * variables, they should instead be set as a
 * property of this global variable
 *
 * E.g: Instead of
 *   myVar = 'blah';
 * use
 *   mcw.myVar = 'blah';
 */
var mcw = window.mcw = {};


/* Variables for interface text used throughout the script, for ease of translating */
mcw.i18n = {
	// Collapsible tables and page loader
	hideText: 'hide',
	showText: 'show',
	
	// Page loader
	loadErrorTitle: 'An error occurred loading the content',
	
	// File upload
	defaultLicense: 'License'
};

/* Keep track of delegated events on dynamic content */
mcw.events = {};

/* Fired whenever wiki content is added. (#mw-content-text, live preview, load page, etc.) */
mw.hook( 'wikipage.content' ).add( function( $content ) {


/**
 * Collapsible tables
 *
 * Based on http://www.mediawiki.org/wiki/Manual:Collapsible_tables#Common.js_script_.28before_1.18.29
 */
( function() {
	var $tables = $content.find( 'table.collapsible' );
	
	if ( !$tables || !$tables.length ) {
		return false;
	}
	
	var buttonText = ' <span class="collapsible-button">[<span class="jslink">' + mcw.i18n.hideText + '</span>]</span> ';
	
	$tables.each( function() {
		var $table = $( this ), $header, $collapseButton, firstWidth, secondWidth;
		
		// This table is already collapsible
		if ( $table.data( 'collapsible' ) ) {
			return true;
		}
		
		// Use the collapse-button if specified otherwise the first header cell of the first row
		$header = $table.find( 'tr:first .collapse-button' );
		if ( !$header.length ) {
			$header = $table.find( 'tr:first > th:first' );
		}
		
		// No header or the table body is empty
		if ( !$header.length || !$table.find( 'tr:not(tr:first)' ).html().trim().length ) {
			return true;
		}
		
		// For the button to float properly, it has to be /before/ the cell text
		if ( $table.hasClass( 'collapse-button-none' ) ) {
			$header.append( buttonText );
		} else {
			$header.prepend( buttonText );
		}
		
		// Find max button size, and set its min-width to it
		$collapseButton = $table.find( '.collapsible-button' );
		firstWidth = $collapseButton.width();
		$collapseButton.find( '> .jslink' ).text( mcw.i18n.showText );
		secondWidth = $collapseButton.width();
		
		if ( firstWidth != secondWidth ) {
			if ( firstWidth < secondWidth ) {
				$collapseButton.css( 'min-width', secondWidth );
			} else {
				$collapseButton.css( 'min-width', firstWidth );
			}
		}
	
		// Set the text back to hide if it's not collapsed to begin with
		if ( !$table.hasClass( 'collapsed' ) ) {
			$collapseButton.find( '> .jslink' ).text( mcw.i18n.hideText );
		}
		
		$table.data( 'collapsible', true );
	} );
	
	// This is bound directly because sortable tables don't play nice
	$tables.find( '.collapsible-button .jslink' ).click( function( e ) {
		var $table = $( this ).closest( 'table.collapsible' );
		
		// Stop table sorting activating when clicking the link
		e.stopPropagation();
		
		if ( $table.hasClass( 'collapsed' ) ) {
			$table.removeClass( 'collapsed' ).addClass( 'expanded' );
			$( this ).text( mcw.i18n.hideText );
		} else {
			$table.removeClass( 'expanded' ).addClass( 'collapsed' );
			$( this ).text( mcw.i18n.showText );
		}
	} );
}() );

} );
/* End wiki content hook */

/* Fires when DOM is ready */
$( function() {


/**
 * Creates minecraft style tooltips
 *
 * Replaces normal tooltips. Supports minecraft [[formatting codes]] (except k), and a description with line breaks (/).
 * Use mcw.useNativeMinetip = true to use normal tooltips, with the description added
 */
mcw.minetip = {
	// Add normal minetip events, removing legacy tooltip
	create: function() {
		var tooltip;
		
		$( '#mw-content-text' ).on( {
			'mouseenter.minetip': function( e ) {
				var $elem = $( this ),
					title = $elem.data( 'minetip-title' ),
					description = $elem.data( 'minetip-text' );
				
				// No title or title only contains formatting codes
				if ( title === undefined || title && title.replace( /&([0-9a-fl-o])|\s+/g, '' ) === '' ) {
					// Use title attribute of the element or the first link directly under it
					var attrTitle = $elem.attr( 'title' ) || $elem.find( '> a:first' ).attr( 'title' );
					if ( title === undefined ) {
						title = attrTitle;
					} else {
						title += attrTitle;
					}
					
					if ( title ) {
						// Set the retrieved title as data for future use
						$elem.data( 'minetip-title', title );
					} else {
						return;
					}
				}
				
				$elem.add( '*', $elem ).filter( '[title]' ).removeAttr( 'title' );
				
				if ( title === 0 ) {
					return;
				}
				
				var text = '<span class="title">' + title + '&f</span>';
				if ( description ) {
					text += '\n<span class="description">' +
						description.replace( /\\\//g, '&#47;' ).replace( /\//g, '<br>' ) +
						'&f</span>';
				}
				
				if ( !$( '#minetip-tooltip' ).length ) {
					$( 'body' ).append( '<div id="minetip-tooltip"/>' );
				}
				tooltip = $( '#minetip-tooltip' );
				
				// Add classes for minecraft formatting codes
				while ( text.match( /&[0-9a-el-o]/ ) ) {
					text = text.replace( /&([0-9a-el-o])(.*?)(&f|$)/g, '<span class="format-$1">$2</span>&f' );
				}
				// Remove reset formatting
				text = text.replace( /&f/g, '' );
				
				tooltip.html( text );
				
				// Trigger a mouse movement to position the tooltip
				$elem.trigger( 'mousemove', e );
			},
			'mousemove.minetip': function( e, trigger ) {
				if ( !$( '#minetip-tooltip' ).length ) {
					$( this ).trigger( 'mouseenter' );
					return;
				}
				
				// Get event data from remote trigger
				e = trigger || e;
				
				var top = e.clientY - 34,
					left = e.clientX + 14,
					width = tooltip.outerWidth( true ),
					height = tooltip.outerHeight( true ),
					
					$win = $( window ),
					winWidth = $win.width(),
					winHeight = $win.height();
				
				// If going off the right of the screen, go to the left of the cursor
				if ( left + width > winWidth ) {
					left -= width + 36;
				}
				
				// If now going off to the left of the screen, resort to going below the cursor
				if ( left < 0 ) {
					left = 0;
					top += 82;
					
					// Go above the cursor if too low
					if ( top + height > winHeight ) {
						top -= 77 + height;
					}
				// Don't go off the top of the screen
				} else if ( top < 0 ) {
					top = 0;
				// Don't go off the bottom of the screen
				} else if ( top + height > winHeight ) {
					top = winHeight - height;
				}
				
				// Apply the positions
				tooltip.css( {
					top: top,
					left: left
				} );
			},
			'mouseleave.minetip': function() {
				if ( !tooltip ) {
					return;
				}
				
				tooltip.remove();
			}
		}, '.minetip, .grid .image, .grid .item, .grid2 .item' ).off( '.minetipNative' );
	},
	// Remove all events
	destroy: function() {
		$( '#mw-content-text' ).off( '.minetip .minetipNative' );
		$( '#minetip-tooltip' ).remove();
	},
	// Add native browser tooltip events, removing normal minetip
	native: function() {
		$( '#mw-content-text' ).on( 'mouseenter.minetipNative', '.minetip, .grid .image, .grid .item, .grid2 .item', function() {
			var title = $( this ).data( 'minetip-title' ),
				description = $( this ).data( 'minetip-text' ),
				existingTitle = $( this ).attr( 'title' ) || $( this ).find( '> a:first' ).attr( 'title' );
			
			if ( title || title === 0 || $( this ).attr( 'title' ) ) {
				// Remove titles within so they don't interfere
				$( this ).find( '[title]' ).removeAttr( 'title' );
			}
			
			if ( title === 0 ) {
				$( this ).removeAttr( 'title' );
				return;
			} else if ( !title && ( !existingTitle || !description ) ) {
				return;
			} else if ( !title && existingTitle ) {
				$( this ).data( 'minetip-title', existingTitle );
			}
			
			var text = title || existingTitle;
			if ( description ) {
				text += '\n' + description;
			}
			
			// Remove formatting
			text = text.replace( /&([0-9a-fl-o])/g, '' )
				.replace( /\\\//g, '&#47;' )
				.replace( /\//g, '\n' )
				.replace( /&#47;/g, '/' );
			
			$( this ).attr( 'title', text );
		} ).off( '.minetip' );
	}
};

if ( mcw.useNativeMinetip ) {
	mcw.minetip.native();
} else {
	mcw.minetip.create();
}

} );
/* End DOM ready */


}() );