diff options
author | Pierre Schmitz <pierre@archlinux.de> | 2014-12-27 15:41:37 +0100 |
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committer | Pierre Schmitz <pierre@archlinux.de> | 2014-12-31 11:43:28 +0100 |
commit | c1f9b1f7b1b77776192048005dcc66dcf3df2bfb (patch) | |
tree | 2b38796e738dd74cb42ecd9bfd151803108386bc /resources/src/jquery/jquery.highlightText.js | |
parent | b88ab0086858470dd1f644e64cb4e4f62bb2be9b (diff) |
Update to MediaWiki 1.24.1
Diffstat (limited to 'resources/src/jquery/jquery.highlightText.js')
-rw-r--r-- | resources/src/jquery/jquery.highlightText.js | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/resources/src/jquery/jquery.highlightText.js b/resources/src/jquery/jquery.highlightText.js new file mode 100644 index 00000000..13382182 --- /dev/null +++ b/resources/src/jquery/jquery.highlightText.js @@ -0,0 +1,73 @@ +/** + * Plugin that highlights matched word partials in a given element. + * TODO: Add a function for restoring the previous text. + * TODO: Accept mappings for converting shortcuts like WP: to Wikipedia:. + */ +( function ( $ ) { + + $.highlightText = { + + // Split our pattern string at spaces and run our highlight function on the results + splitAndHighlight: function ( node, pat ) { + var i, + patArray = pat.split( ' ' ); + for ( i = 0; i < patArray.length; i++ ) { + if ( patArray[i].length === 0 ) { + continue; + } + $.highlightText.innerHighlight( node, patArray[i] ); + } + return node; + }, + + // scans a node looking for the pattern and wraps a span around each match + innerHighlight: function ( node, pat ) { + var i, match, pos, spannode, middlebit, middleclone; + // if this is a text node + if ( node.nodeType === 3 ) { + // TODO - need to be smarter about the character matching here. + // non latin characters can make regex think a new word has begun: do not use \b + // http://stackoverflow.com/questions/3787072/regex-wordwrap-with-utf8-characters-in-js + // look for an occurrence of our pattern and store the starting position + match = node.data.match( new RegExp( '(^|\\s)' + $.escapeRE( pat ), 'i' ) ); + if ( match ) { + pos = match.index + match[1].length; // include length of any matched spaces + // create the span wrapper for the matched text + spannode = document.createElement( 'span' ); + spannode.className = 'highlight'; + // shave off the characters preceding the matched text + middlebit = node.splitText( pos ); + // shave off any unmatched text off the end + middlebit.splitText( pat.length ); + // clone for appending to our span + middleclone = middlebit.cloneNode( true ); + // append the matched text node to the span + spannode.appendChild( middleclone ); + // replace the matched node, with our span-wrapped clone of the matched node + middlebit.parentNode.replaceChild( spannode, middlebit ); + } + // if this is an element with childnodes, and not a script, style or an element we created + } else if ( node.nodeType === 1 + && node.childNodes + && !/(script|style)/i.test( node.tagName ) + && !( node.tagName.toLowerCase() === 'span' + && node.className.match( /\bhighlight/ ) + ) + ) { + for ( i = 0; i < node.childNodes.length; ++i ) { + // call the highlight function for each child node + $.highlightText.innerHighlight( node.childNodes[i], pat ); + } + } + } + }; + + $.fn.highlightText = function ( matchString ) { + return this.each( function () { + var $el = $( this ); + $el.data( 'highlightText', { originalText: $el.text() } ); + $.highlightText.splitAndHighlight( this, matchString ); + } ); + }; + +}( jQuery ) ); |