+++ /dev/null
-/**
- * @class jQuery.plugin.autoEllipsis
- */
-( function ( $ ) {
-
- var
- // Cache ellipsed substrings for every string-width-position combination
- cache = {},
-
- // Use a separate cache when match highlighting is enabled
- matchTextCache = {};
-
- // Due to <https://github.com/jscs-dev/jscs-jsdoc/issues/136>
- // jscs:disable jsDoc
- /**
- * Automatically truncate the plain text contents of an element and add an ellipsis
- *
- * @param {Object} options
- * @param {'left'|'center'|'right'} [options.position='center'] Where to remove text.
- * @param {boolean} [options.tooltip=false] Whether to show a tooltip with the remainder
- * of the text.
- * @param {boolean} [options.restoreText=false] Whether to save the text for restoring
- * later.
- * @param {boolean} [options.hasSpan=false] Whether the element is already a container,
- * or if the library should create a new container for it.
- * @param {string|null} [options.matchText=null] Text to highlight, e.g. search terms.
- * @return {jQuery}
- * @chainable
- */
- $.fn.autoEllipsis = function ( options ) {
- options = $.extend( {
- position: 'center',
- tooltip: false,
- restoreText: false,
- hasSpan: false,
- matchText: null
- }, options );
-
- return this.each( function () {
- var $trimmableText,
- text, trimmableText, w, pw,
- l, r, i, side, m,
- // container element - used for measuring against
- $container = $( this );
-
- if ( options.restoreText ) {
- if ( !$container.data( 'autoEllipsis.originalText' ) ) {
- $container.data( 'autoEllipsis.originalText', $container.text() );
- } else {
- $container.text( $container.data( 'autoEllipsis.originalText' ) );
- }
- }
-
- // trimmable text element - only the text within this element will be trimmed
- if ( options.hasSpan ) {
- $trimmableText = $container.children( options.selector );
- } else {
- $trimmableText = $( '<span>' )
- .css( 'whiteSpace', 'nowrap' )
- .text( $container.text() );
- $container
- .empty()
- .append( $trimmableText );
- }
-
- text = $container.text();
- trimmableText = $trimmableText.text();
- w = $container.width();
- pw = 0;
-
- // Try cache
- if ( options.matchText ) {
- if ( !( text in matchTextCache ) ) {
- matchTextCache[ text ] = {};
- }
- if ( !( options.matchText in matchTextCache[ text ] ) ) {
- matchTextCache[ text ][ options.matchText ] = {};
- }
- if ( !( w in matchTextCache[ text ][ options.matchText ] ) ) {
- matchTextCache[ text ][ options.matchText ][ w ] = {};
- }
- if ( options.position in matchTextCache[ text ][ options.matchText ][ w ] ) {
- $container.html( matchTextCache[ text ][ options.matchText ][ w ][ options.position ] );
- if ( options.tooltip ) {
- $container.attr( 'title', text );
- }
- return;
- }
- } else {
- if ( !( text in cache ) ) {
- cache[ text ] = {};
- }
- if ( !( w in cache[ text ] ) ) {
- cache[ text ][ w ] = {};
- }
- if ( options.position in cache[ text ][ w ] ) {
- $container.html( cache[ text ][ w ][ options.position ] );
- if ( options.tooltip ) {
- $container.attr( 'title', text );
- }
- return;
- }
- }
-
- if ( $trimmableText.width() + pw > w ) {
- switch ( options.position ) {
- case 'right':
- // Use binary search-like technique for efficiency
- l = 0;
- r = trimmableText.length;
- do {
- m = Math.ceil( ( l + r ) / 2 );
- $trimmableText.text( trimmableText.slice( 0, m ) + '...' );
- if ( $trimmableText.width() + pw > w ) {
- // Text is too long
- r = m - 1;
- } else {
- l = m;
- }
- } while ( l < r );
- $trimmableText.text( trimmableText.slice( 0, l ) + '...' );
- break;
- case 'center':
- // TODO: Use binary search like for 'right'
- i = [ Math.round( trimmableText.length / 2 ), Math.round( trimmableText.length / 2 ) ];
- // Begin with making the end shorter
- side = 1;
- while ( $trimmableText.outerWidth() + pw > w && i[ 0 ] > 0 ) {
- $trimmableText.text( trimmableText.slice( 0, i[ 0 ] ) + '...' + trimmableText.slice( i[ 1 ] ) );
- // Alternate between trimming the end and begining
- if ( side === 0 ) {
- // Make the begining shorter
- i[ 0 ]--;
- side = 1;
- } else {
- // Make the end shorter
- i[ 1 ]++;
- side = 0;
- }
- }
- break;
- case 'left':
- // TODO: Use binary search like for 'right'
- r = 0;
- while ( $trimmableText.outerWidth() + pw > w && r < trimmableText.length ) {
- $trimmableText.text( '...' + trimmableText.slice( r ) );
- r++;
- }
- break;
- }
- }
- if ( options.tooltip ) {
- $container.attr( 'title', text );
- }
- if ( options.matchText ) {
- $container.highlightText( options.matchText );
- matchTextCache[ text ][ options.matchText ][ w ][ options.position ] = $container.html();
- } else {
- cache[ text ][ w ][ options.position ] = $container.html();
- }
-
- } );
- };
- // jscs:enable jsDoc
-
- /**
- * @class jQuery
- * @mixins jQuery.plugin.autoEllipsis
- */
-
-}( jQuery ) );
+++ /dev/null
-( function ( $ ) {
-
- QUnit.module( 'jquery.autoEllipsis', QUnit.newMwEnvironment() );
-
- function createWrappedDiv( text, width ) {
- var $wrapper = $( '<div>' ).css( 'width', width ),
- $div = $( '<div>' ).text( text );
- $wrapper.append( $div );
- return $wrapper;
- }
-
- function findDivergenceIndex( a, b ) {
- var i = 0;
- while ( i < a.length && i < b.length && a[ i ] === b[ i ] ) {
- i++;
- }
- return i;
- }
-
- QUnit.test( 'Position right', function ( assert ) {
- // We need this thing to be visible, so append it to the DOM
- var $span, spanText, d, spanTextNew,
- origText = 'This is a really long random string and there is no way it fits in 100 pixels.',
- $wrapper = createWrappedDiv( origText, '100px' );
-
- $( '#qunit-fixture' ).append( $wrapper );
- $wrapper.autoEllipsis( { position: 'right' } );
-
- // Verify that, and only one, span element was created
- $span = $wrapper.find( '> span' );
- assert.strictEqual( $span.length, 1, 'autoEllipsis wrapped the contents in a span element' );
-
- // Check that the text fits by turning on word wrapping
- $span.css( 'whiteSpace', 'nowrap' );
- assert.ltOrEq(
- $span.width(),
- $span.parent().width(),
- 'Text fits (making the span "white-space: nowrap" does not make it wider than its parent)'
- );
-
- // Add two characters using scary black magic
- spanText = $span.text();
- d = findDivergenceIndex( origText, spanText );
- spanTextNew = spanText.slice( 0, d ) + origText[ d ] + origText[ d ] + '...';
-
- assert.gt( spanTextNew.length, spanText.length, 'Verify that the new span-length is indeed greater' );
-
- // Put this text in the span and verify it doesn't fit
- $span.text( spanTextNew );
- assert.gt( $span.width(), $span.parent().width(), 'Fit is maximal (adding two characters makes it not fit any more)' );
- } );
-
-}( jQuery ) );
dépôts / lhc / web / wiklou.git / commitdiff