---

title: Centered Masonry

layout: default

category: custom-layout-modes

---

<style>

  #container {

    margin: 0 auto 20px;

  }

</style>

<section id="copy">

  <p><a href="../docs/layout-modes.html#modified_layout_modes">Modified masonry layout mode</a> for centered container.</p>

</section>

<section id="options" class="clearfix">

  {% include filter-buttons.html %}

  {% include sort-buttons.html %}

  <h3>Etc</h3>

  <ul id="etc" class="clearfix">

    <li id="toggle-sizes"><a href="#toggle-sizes">Toggle variable sizes</a></li>

    <li id="insert"><a href="#insert">Insert new elements</a></li>

    <li id="append"><a href='#append'>Append new elements</a></li>

    <li id="shuffle"><a href='#shuffle'>Shuffle</a></li>

  </ul>

</section> <!-- #options -->

<div id="container" class="clickable clearfix">

  {% for elem_number in site.best_of_order %}

    {% assign element = site.elements[elem_number] %}

    {% include element-partial.html %}

  {% endfor %}

</div> <!-- #container -->

<script src="../{{ site.jquery_js }}"></script>

<script src="../{{ site.isotope_js }}"></script>

<script src="../js/fake-element.js"></script>

<script>

  $.Isotope.prototype._getCenteredMasonryColumns = function() {

    this.width = this.element.width();

    var parentWidth = this.element.parent().width();

                  // i.e. options.masonry && options.masonry.columnWidth

    var colW = this.options.masonry && this.options.masonry.columnWidth ||

                  // or use the size of the first item

                  this.$filteredAtoms.outerWidth(true) ||

                  // if there's no items, use size of container

                  parentWidth;

    var cols = Math.floor( parentWidth / colW );

    cols = Math.max( cols, 1 );

    // i.e. this.masonry.cols = ....

    this.masonry.cols = cols;

    // i.e. this.masonry.columnWidth = ...

    this.masonry.columnWidth = colW;

  };

  $.Isotope.prototype._masonryReset = function() {

    // layout-specific props

    this.masonry = {};

    // FIXME shouldn't have to call this again

    this._getCenteredMasonryColumns();

    var i = this.masonry.cols;

    this.masonry.colYs = [];

    while (i--) {

      this.masonry.colYs.push( 0 );

    }

  };

  $.Isotope.prototype._masonryResizeChanged = function() {

    var prevColCount = this.masonry.cols;

    // get updated colCount

    this._getCenteredMasonryColumns();

    return ( this.masonry.cols !== prevColCount );

  };

  $.Isotope.prototype._masonryGetContainerSize = function() {

    var unusedCols = 0,

        i = this.masonry.cols;

    // count unused columns

    while ( --i ) {

      if ( this.masonry.colYs[i] !== 0 ) {

        break;

      }

      unusedCols++;

    }

    return {

          height : Math.max.apply( Math, this.masonry.colYs ),

          // fit container to columns that have been used;

          width : (this.masonry.cols - unusedCols) * this.masonry.columnWidth

        };

  };

  $(function(){

    var $container = $('#container');

    {% include random-sizes.js %}

    $container.isotope({

      itemSelector : '.element',

      masonry : {

        columnWidth : 120

      },

      getSortData : {

        symbol : function( $elem ) {

          return $elem.attr('data-symbol');

        },

        category : function( $elem ) {

          return $elem.attr('data-category');

        },

        number : function( $elem ) {

          return parseInt( $elem.find('.number').text(), 10 );

        },

        weight : function( $elem ) {

          return parseFloat( $elem.find('.weight').text().replace( /[\(\)]/g, '') );

        },

        name : function ( $elem ) {

          return $elem.find('.name').text();

        }

      }

    });

    {% include option-set-buttons.js %}

    {% include add-buttons.js %}

    {% include change-sizes.js %}

    var $sortBy = $('#sort-by');

    $('#shuffle a').click(function(){

      $container.isotope('shuffle');

      $sortBy.find('.selected').removeClass('selected');

      $sortBy.find('[data-option-value="random"]').addClass('selected');

      return false;

    });

  });

</script>