760 lines
16 KiB
JavaScript
760 lines
16 KiB
JavaScript
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/*
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* jQuery dotdotdot 1.8.3
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*
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* Copyright (c) Fred Heusschen
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* www.frebsite.nl
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*
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* Plugin website:
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* dotdotdot.frebsite.nl
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*
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* Licensed under the MIT license.
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* http://en.wikipedia.org/wiki/MIT_License
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*/
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(function( $, undef )
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{
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if ( $.fn.dotdotdot )
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{
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return;
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}
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$.fn.dotdotdot = function( o )
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{
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if ( this.length == 0 )
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{
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$.fn.dotdotdot.debug( 'No element found for "' + this.selector + '".' );
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return this;
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}
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if ( this.length > 1 )
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{
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return this.each(
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function()
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{
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$(this).dotdotdot( o );
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}
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);
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}
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var $dot = this;
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var orgContent = $dot.contents();
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if ( $dot.data( 'dotdotdot' ) )
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{
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$dot.trigger( 'destroy.dot' );
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}
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$dot.data( 'dotdotdot-style', $dot.attr( 'style' ) || '' );
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$dot.css( 'word-wrap', 'break-word' );
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if ($dot.css( 'white-space' ) === 'nowrap')
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{
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$dot.css( 'white-space', 'normal' );
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}
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$dot.bind_events = function()
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{
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$dot.bind(
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'update.dot',
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function( e, c )
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{
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$dot.removeClass("is-truncated");
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e.preventDefault();
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e.stopPropagation();
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switch( typeof opts.height )
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{
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case 'number':
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opts.maxHeight = opts.height;
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break;
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case 'function':
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opts.maxHeight = opts.height.call( $dot[ 0 ] );
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break;
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default:
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opts.maxHeight = getTrueInnerHeight( $dot );
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break;
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}
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opts.maxHeight += opts.tolerance;
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if ( typeof c != 'undefined' )
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{
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if ( typeof c == 'string' || ('nodeType' in c && c.nodeType === 1) )
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{
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c = $('<div />').append( c ).contents();
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}
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if ( c instanceof $ )
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{
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orgContent = c;
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}
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}
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$inr = $dot.wrapInner( '<div class="dotdotdot" />' ).children();
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$inr.contents()
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.detach()
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.end()
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.append( orgContent.clone( true ) )
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.find( 'br' )
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.replaceWith( ' <br /> ' )
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.end()
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.css({
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'height' : 'auto',
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'width' : 'auto',
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'border' : 'none',
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'padding' : 0,
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'margin' : 0
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});
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var after = false,
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trunc = false;
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if ( conf.afterElement )
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{
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after = conf.afterElement.clone( true );
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after.show();
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conf.afterElement.detach();
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}
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if ( test( $inr, opts ) )
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{
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if ( opts.wrap == 'children' )
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{
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trunc = children( $inr, opts, after );
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}
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else
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{
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trunc = ellipsis( $inr, $dot, $inr, opts, after );
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}
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}
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$inr.replaceWith( $inr.contents() );
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$inr = null;
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if ( $.isFunction( opts.callback ) )
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{
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opts.callback.call( $dot[ 0 ], trunc, orgContent );
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}
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conf.isTruncated = trunc;
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return trunc;
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}
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).bind(
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'isTruncated.dot',
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function( e, fn )
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{
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e.preventDefault();
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e.stopPropagation();
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if ( typeof fn == 'function' )
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{
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fn.call( $dot[ 0 ], conf.isTruncated );
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}
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return conf.isTruncated;
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}
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).bind(
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'originalContent.dot',
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function( e, fn )
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{
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e.preventDefault();
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e.stopPropagation();
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if ( typeof fn == 'function' )
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{
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fn.call( $dot[ 0 ], orgContent );
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}
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return orgContent;
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}
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).bind(
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'destroy.dot',
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function( e )
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{
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e.preventDefault();
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e.stopPropagation();
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$dot.unwatch()
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.unbind_events()
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.contents()
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.detach()
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.end()
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.append( orgContent )
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.attr( 'style', $dot.data( 'dotdotdot-style' ) || '' )
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.removeClass( 'is-truncated' )
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.data( 'dotdotdot', false );
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}
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);
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return $dot;
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}; // /bind_events
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$dot.unbind_events = function()
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{
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$dot.unbind('.dot');
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return $dot;
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}; // /unbind_events
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$dot.watch = function()
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{
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$dot.unwatch();
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if ( opts.watch == 'window' )
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{
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var $window = $(window),
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_wWidth = $window.width(),
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_wHeight = $window.height();
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$window.bind(
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'resize.dot' + conf.dotId,
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function()
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{
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if ( _wWidth != $window.width() || _wHeight != $window.height() || !opts.windowResizeFix )
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{
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_wWidth = $window.width();
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_wHeight = $window.height();
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if ( watchInt )
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{
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clearInterval( watchInt );
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}
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watchInt = setTimeout(
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function()
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{
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$dot.trigger( 'update.dot' );
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}, 100
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);
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}
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}
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);
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}
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else
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{
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watchOrg = getSizes( $dot );
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watchInt = setInterval(
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function()
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{
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if ( $dot.is( ':visible' ) )
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{
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var watchNew = getSizes( $dot );
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if ( watchOrg.width != watchNew.width ||
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watchOrg.height != watchNew.height )
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{
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$dot.trigger( 'update.dot' );
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watchOrg = watchNew;
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}
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}
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}, 500
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);
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}
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return $dot;
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};
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$dot.unwatch = function()
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{
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$(window).unbind( 'resize.dot' + conf.dotId );
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if ( watchInt )
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{
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clearInterval( watchInt );
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}
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return $dot;
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};
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var opts = $.extend( true, {}, $.fn.dotdotdot.defaults, o ),
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conf = {},
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watchOrg = {},
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watchInt = null,
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$inr = null;
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if ( !( opts.lastCharacter.remove instanceof Array ) )
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{
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opts.lastCharacter.remove = $.fn.dotdotdot.defaultArrays.lastCharacter.remove;
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}
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if ( !( opts.lastCharacter.noEllipsis instanceof Array ) )
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{
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opts.lastCharacter.noEllipsis = $.fn.dotdotdot.defaultArrays.lastCharacter.noEllipsis;
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}
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conf.afterElement = getElement( opts.after, $dot );
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conf.isTruncated = false;
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conf.dotId = dotId++;
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$dot.data( 'dotdotdot', true )
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.bind_events()
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.trigger( 'update.dot' );
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if ( opts.watch )
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{
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$dot.watch();
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}
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return $dot;
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};
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// public
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$.fn.dotdotdot.defaults = {
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'ellipsis' : '... ',
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'wrap' : 'word',
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'fallbackToLetter' : true,
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'lastCharacter' : {},
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'tolerance' : 0,
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'callback' : null,
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'after' : null,
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'height' : null,
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'watch' : false,
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'windowResizeFix' : true
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};
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$.fn.dotdotdot.defaultArrays = {
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'lastCharacter' : {
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'remove' : [ ' ', '\u3000', ',', ';', '.', '!', '?' ],
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'noEllipsis' : []
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}
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};
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$.fn.dotdotdot.debug = function( msg ) {};
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// private
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var dotId = 1;
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function children( $elem, o, after )
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{
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var $elements = $elem.children(),
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isTruncated = false;
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$elem.empty();
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for ( var a = 0, l = $elements.length; a < l; a++ )
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{
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var $e = $elements.eq( a );
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$elem.append( $e );
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if ( after )
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{
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$elem.append( after );
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}
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if ( test( $elem, o ) )
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{
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$e.remove();
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isTruncated = true;
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break;
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}
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else
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{
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if ( after )
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{
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after.detach();
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}
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}
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}
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return isTruncated;
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}
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function ellipsis( $elem, $d, $i, o, after )
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{
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var isTruncated = false;
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// Don't put the ellipsis directly inside these elements
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var notx = 'a, table, thead, tbody, tfoot, tr, col, colgroup, object, embed, param, ol, ul, dl, blockquote, select, optgroup, option, textarea, script, style';
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// Don't remove these elements even if they are after the ellipsis
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var noty = 'script, .dotdotdot-keep';
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$elem
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.contents()
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.detach()
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.each(
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function()
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{
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var e = this,
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$e = $(e);
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if ( typeof e == 'undefined' )
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{
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return true;
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}
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else if ( $e.is( noty ) )
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{
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$elem.append( $e );
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}
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else if ( isTruncated )
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{
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return true;
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}
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else
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{
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$elem.append( $e );
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if ( after && !$e.is( o.after ) && !$e.find( o.after ).length )
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{
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$elem[ $elem.is( notx ) ? 'after' : 'append' ]( after );
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}
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if ( test( $i, o ) )
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{
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if ( e.nodeType == 3 ) // node is TEXT
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{
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isTruncated = ellipsisElement( $e, $d, $i, o, after );
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}
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else
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{
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isTruncated = ellipsis( $e, $d, $i, o, after );
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}
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}
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if ( !isTruncated )
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{
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if ( after )
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{
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after.detach();
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}
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}
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}
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}
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);
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$d.addClass("is-truncated");
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return isTruncated;
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}
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function ellipsisElement( $e, $d, $i, o, after )
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{
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var e = $e[ 0 ];
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if ( !e )
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{
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return false;
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}
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var txt = getTextContent( e ),
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space = ( txt.indexOf(' ') !== -1 ) ? ' ' : '\u3000',
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separator = ( o.wrap == 'letter' ) ? '' : space,
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textArr = txt.split( separator ),
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position = -1,
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midPos = -1,
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|
|
startPos = 0,
|
||
|
|
endPos = textArr.length - 1;
|
||
|
|
|
||
|
|
|
||
|
|
// Only one word
|
||
|
|
if ( o.fallbackToLetter && startPos == 0 && endPos == 0 )
|
||
|
|
{
|
||
|
|
separator = '';
|
||
|
|
textArr = txt.split( separator );
|
||
|
|
endPos = textArr.length - 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
while ( startPos <= endPos && !( startPos == 0 && endPos == 0 ) )
|
||
|
|
{
|
||
|
|
var m = Math.floor( ( startPos + endPos ) / 2 );
|
||
|
|
if ( m == midPos )
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
midPos = m;
|
||
|
|
|
||
|
|
setTextContent( e, textArr.slice( 0, midPos + 1 ).join( separator ) + o.ellipsis );
|
||
|
|
$i.children()
|
||
|
|
.each(
|
||
|
|
function()
|
||
|
|
{
|
||
|
|
$(this).toggle().toggle();
|
||
|
|
}
|
||
|
|
);
|
||
|
|
|
||
|
|
if ( !test( $i, o ) )
|
||
|
|
{
|
||
|
|
position = midPos;
|
||
|
|
startPos = midPos;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
endPos = midPos;
|
||
|
|
|
||
|
|
// Fallback to letter
|
||
|
|
if (o.fallbackToLetter && startPos == 0 && endPos == 0 )
|
||
|
|
{
|
||
|
|
separator = '';
|
||
|
|
textArr = textArr[ 0 ].split( separator );
|
||
|
|
position = -1;
|
||
|
|
midPos = -1;
|
||
|
|
startPos = 0;
|
||
|
|
endPos = textArr.length - 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( position != -1 && !( textArr.length == 1 && textArr[ 0 ].length == 0 ) )
|
||
|
|
{
|
||
|
|
txt = addEllipsis( textArr.slice( 0, position + 1 ).join( separator ), o );
|
||
|
|
setTextContent( e, txt );
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
var $w = $e.parent();
|
||
|
|
$e.detach();
|
||
|
|
|
||
|
|
var afterLength = ( after && after.closest($w).length ) ? after.length : 0;
|
||
|
|
|
||
|
|
if ( $w.contents().length > afterLength )
|
||
|
|
{
|
||
|
|
e = findLastTextNode( $w.contents().eq( -1 - afterLength ), $d );
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
e = findLastTextNode( $w, $d, true );
|
||
|
|
if ( !afterLength )
|
||
|
|
{
|
||
|
|
$w.detach();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ( e )
|
||
|
|
{
|
||
|
|
txt = addEllipsis( getTextContent( e ), o );
|
||
|
|
setTextContent( e, txt );
|
||
|
|
if ( afterLength && after )
|
||
|
|
{
|
||
|
|
var $parent = after.parent();
|
||
|
|
|
||
|
|
$(e).parent().append( after );
|
||
|
|
|
||
|
|
if ( !$.trim( $parent.html() ) )
|
||
|
|
{
|
||
|
|
$parent.remove();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
function test( $i, o )
|
||
|
|
{
|
||
|
|
return $i.innerHeight() > o.maxHeight;
|
||
|
|
}
|
||
|
|
function addEllipsis( txt, o )
|
||
|
|
{
|
||
|
|
while( $.inArray( txt.slice( -1 ), o.lastCharacter.remove ) > -1 )
|
||
|
|
{
|
||
|
|
txt = txt.slice( 0, -1 );
|
||
|
|
}
|
||
|
|
if ( $.inArray( txt.slice( -1 ), o.lastCharacter.noEllipsis ) < 0 )
|
||
|
|
{
|
||
|
|
txt += o.ellipsis;
|
||
|
|
}
|
||
|
|
return txt;
|
||
|
|
}
|
||
|
|
function getSizes( $d )
|
||
|
|
{
|
||
|
|
return {
|
||
|
|
'width' : $d.innerWidth(),
|
||
|
|
'height': $d.innerHeight()
|
||
|
|
};
|
||
|
|
}
|
||
|
|
function setTextContent( e, content )
|
||
|
|
{
|
||
|
|
if ( e.innerText )
|
||
|
|
{
|
||
|
|
e.innerText = content;
|
||
|
|
}
|
||
|
|
else if ( e.nodeValue )
|
||
|
|
{
|
||
|
|
e.nodeValue = content;
|
||
|
|
}
|
||
|
|
else if (e.textContent)
|
||
|
|
{
|
||
|
|
e.textContent = content;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
function getTextContent( e )
|
||
|
|
{
|
||
|
|
if ( e.innerText )
|
||
|
|
{
|
||
|
|
return e.innerText;
|
||
|
|
}
|
||
|
|
else if ( e.nodeValue )
|
||
|
|
{
|
||
|
|
return e.nodeValue;
|
||
|
|
}
|
||
|
|
else if ( e.textContent )
|
||
|
|
{
|
||
|
|
return e.textContent;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return "";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function getPrevNode( n )
|
||
|
|
{
|
||
|
|
do
|
||
|
|
{
|
||
|
|
n = n.previousSibling;
|
||
|
|
}
|
||
|
|
while ( n && n.nodeType !== 1 && n.nodeType !== 3 );
|
||
|
|
|
||
|
|
return n;
|
||
|
|
}
|
||
|
|
function findLastTextNode( $el, $top, excludeCurrent )
|
||
|
|
{
|
||
|
|
var e = $el && $el[ 0 ], p;
|
||
|
|
if ( e )
|
||
|
|
{
|
||
|
|
if ( !excludeCurrent )
|
||
|
|
{
|
||
|
|
if ( e.nodeType === 3 )
|
||
|
|
{
|
||
|
|
return e;
|
||
|
|
}
|
||
|
|
if ( $.trim( $el.text() ) )
|
||
|
|
{
|
||
|
|
return findLastTextNode( $el.contents().last(), $top );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
p = getPrevNode( e );
|
||
|
|
while ( !p )
|
||
|
|
{
|
||
|
|
$el = $el.parent();
|
||
|
|
if ( $el.is( $top ) || !$el.length )
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
p = getPrevNode( $el[0] );
|
||
|
|
}
|
||
|
|
if ( p )
|
||
|
|
{
|
||
|
|
return findLastTextNode( $(p), $top );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
function getElement( e, $i )
|
||
|
|
{
|
||
|
|
if ( !e )
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if ( typeof e === 'string' )
|
||
|
|
{
|
||
|
|
e = $(e, $i);
|
||
|
|
return ( e.length )
|
||
|
|
? e
|
||
|
|
: false;
|
||
|
|
}
|
||
|
|
return !e.jquery
|
||
|
|
? false
|
||
|
|
: e;
|
||
|
|
}
|
||
|
|
function getTrueInnerHeight( $el )
|
||
|
|
{
|
||
|
|
var h = $el.innerHeight(),
|
||
|
|
a = [ 'paddingTop', 'paddingBottom' ];
|
||
|
|
|
||
|
|
for ( var z = 0, l = a.length; z < l; z++ )
|
||
|
|
{
|
||
|
|
var m = parseInt( $el.css( a[ z ] ), 10 );
|
||
|
|
if ( isNaN( m ) )
|
||
|
|
{
|
||
|
|
m = 0;
|
||
|
|
}
|
||
|
|
h -= m;
|
||
|
|
}
|
||
|
|
return h;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// override jQuery.html
|
||
|
|
var _orgHtml = $.fn.html;
|
||
|
|
$.fn.html = function( str )
|
||
|
|
{
|
||
|
|
if ( str != undef && !$.isFunction( str ) && this.data( 'dotdotdot' ) )
|
||
|
|
{
|
||
|
|
return this.trigger( 'update', [ str ] );
|
||
|
|
}
|
||
|
|
return _orgHtml.apply( this, arguments );
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
// override jQuery.text
|
||
|
|
var _orgText = $.fn.text;
|
||
|
|
$.fn.text = function( str )
|
||
|
|
{
|
||
|
|
if ( str != undef && !$.isFunction( str ) && this.data( 'dotdotdot' ) )
|
||
|
|
{
|
||
|
|
str = $( '<div />' ).text( str ).html();
|
||
|
|
return this.trigger( 'update', [ str ] );
|
||
|
|
}
|
||
|
|
return _orgText.apply( this, arguments );
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
})( jQuery );
|
||
|
|
|
||
|
|
/*
|
||
|
|
|
||
|
|
## Automatic parsing for CSS classes
|
||
|
|
Contributed by [Ramil Valitov](https://github.com/rvalitov)
|
||
|
|
|
||
|
|
### The idea
|
||
|
|
You can add one or several CSS classes to HTML elements to automatically invoke "jQuery.dotdotdot functionality" and some extra features. It allows to use jQuery.dotdotdot only by adding appropriate CSS classes without JS programming.
|
||
|
|
|
||
|
|
### Available classes and their description
|
||
|
|
* dot-ellipsis - automatically invoke jQuery.dotdotdot to this element. This class must be included if you plan to use other classes below.
|
||
|
|
* dot-resize-update - automatically update if window resize event occurs. It's equivalent to option `watch:'window'`.
|
||
|
|
* dot-timer-update - automatically update if window resize event occurs. It's equivalent to option `watch:true`.
|
||
|
|
* dot-load-update - automatically update after the window has beem completely rendered. Can be useful if your content is generated dynamically using using JS and, hence, jQuery.dotdotdot can't correctly detect the height of the element before it's rendered completely.
|
||
|
|
* dot-height-XXX - available height of content area in pixels, where XXX is a number, e.g. can be `dot-height-35` if you want to set maximum height for 35 pixels. It's equivalent to option `height:'XXX'`.
|
||
|
|
|
||
|
|
### Usage examples
|
||
|
|
*Adding jQuery.dotdotdot to element*
|
||
|
|
|
||
|
|
<div class="dot-ellipsis">
|
||
|
|
<p>Lorem Ipsum is simply dummy text.</p>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
*Adding jQuery.dotdotdot to element with update on window resize*
|
||
|
|
|
||
|
|
<div class="dot-ellipsis dot-resize-update">
|
||
|
|
<p>Lorem Ipsum is simply dummy text.</p>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
*Adding jQuery.dotdotdot to element with predefined height of 50px*
|
||
|
|
|
||
|
|
<div class="dot-ellipsis dot-height-50">
|
||
|
|
<p>Lorem Ipsum is simply dummy text.</p>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
jQuery(document).ready(function($) {
|
||
|
|
//We only invoke jQuery.dotdotdot on elements that have dot-ellipsis class
|
||
|
|
$(".dot-ellipsis").each(function(){
|
||
|
|
//Checking if update on window resize required
|
||
|
|
var watch_window=$(this).hasClass("dot-resize-update");
|
||
|
|
|
||
|
|
//Checking if update on timer required
|
||
|
|
var watch_timer=$(this).hasClass("dot-timer-update");
|
||
|
|
|
||
|
|
//Checking if height set
|
||
|
|
var height=0;
|
||
|
|
var classList = $(this).attr('class').split(/\s+/);
|
||
|
|
$.each(classList, function(index, item) {
|
||
|
|
var matchResult = item.match(/^dot-height-(\d+)$/);
|
||
|
|
if(matchResult !== null)
|
||
|
|
height = Number(matchResult[1]);
|
||
|
|
});
|
||
|
|
|
||
|
|
//Invoking jQuery.dotdotdot
|
||
|
|
var x = new Object();
|
||
|
|
if (watch_timer)
|
||
|
|
x.watch=true;
|
||
|
|
if (watch_window)
|
||
|
|
x.watch='window';
|
||
|
|
if (height>0)
|
||
|
|
x.height=height;
|
||
|
|
$(this).dotdotdot(x);
|
||
|
|
});
|
||
|
|
|
||
|
|
});
|
||
|
|
|
||
|
|
//Updating elements (if any) on window.load event
|
||
|
|
jQuery(window).on('load', function(){
|
||
|
|
jQuery(".dot-ellipsis.dot-load-update").trigger("update.dot");
|
||
|
|
});
|