From 49f09f67b4c26c021735329703bf8ffdf92a110d Mon Sep 17 00:00:00 2001
From: David DeSandro <david@desandro.com>
Date: Mon, 28 Mar 2011 09:55:14 -0400
Subject: [PATCH] src : reLayout : don't proceed unless there are atoms

---
 _posts/tests/2011-03-27-no-items01.html | 29 +++++++++++++++++++++++++
 jquery.isotope.js                       | 12 ++++++++--
 jquery.isotope.min.js                   |  8 +++----
 3 files changed, 43 insertions(+), 6 deletions(-)
 create mode 100644 _posts/tests/2011-03-27-no-items01.html

diff --git a/_posts/tests/2011-03-27-no-items01.html b/_posts/tests/2011-03-27-no-items01.html
new file mode 100644
index 0000000..4eaf1be
--- /dev/null
+++ b/_posts/tests/2011-03-27-no-items01.html
@@ -0,0 +1,29 @@
+---
+title: no items01
+layout: demo
+category: tests
+---
+
+  <section id="copy">
+    <p>After <code>destroy</code>-ing Isotope, original CSS gets re-applied</p>
+  </section>
+
+  <div id="container" style="height: 600px">
+    {% for element in site.elements limit:20 %}
+      {% include element-partial.html %}
+    {% endfor %}
+  </div> <!-- #container -->
+
+  <script src="../{{ site.jquery_js }}"></script>
+  <script src="../{{ site.isotope_js }}"></script>
+  <script>
+    $(function(){
+    
+      var $container = $('#container');
+    
+      $container.isotope({
+        itemSelector: '.foo'
+      });
+    
+    });
+  </script>
\ No newline at end of file
diff --git a/jquery.isotope.js b/jquery.isotope.js
index 2370e31..89bfe04 100644
--- a/jquery.isotope.js
+++ b/jquery.isotope.js
@@ -652,8 +652,16 @@
     
     
     reLayout : function( callback ) {
-      return this[ '_' +  this.options.layoutMode + 'Reset' ]()
-        .layout( this.$filteredAtoms, callback );
+      
+      // proceed if there are atoms
+      if ( this.$allAtoms.length && this.$filteredAtoms.length ) {
+        return this[ '_' +  this.options.layoutMode + 'Reset' ]()
+          .layout( this.$filteredAtoms, callback );
+      } else {
+        // TO DO: add callback.call here?
+        return this;
+      }
+      
     },
     
     // ====================== Convenience methods ======================
diff --git a/jquery.isotope.min.js b/jquery.isotope.min.js
index 81361cb..6682891 100644
--- a/jquery.isotope.min.js
+++ b/jquery.isotope.min.js
@@ -21,10 +21,10 @@ a.scale?a.scale:1}};f.fx.step.scale=function(a){f.cssHooks.scale.set(a.elem,a.no
 f.extend(true,this.options,a);else if(a&&typeof b==="undefined")return this.options[a];else this.options[a]=b;return this},_setupAtoms:function(a){var b={position:"absolute"};if(this.usingTransforms){b.left=0;b.top=0}a.css(b).addClass(this.options.itemClass);this.updateSortData(a,true)},_filter:function(a){var b=this.options.filter===""?"*":this.options.filter;if(b){var c=this.options.hiddenClass,d="."+c,e=a.not(d),g=a.filter(d);d=g;a=a.filter(b);if(b!=="*"){d=g.filter(b);b=e.not(b).toggleClass(c);
 b.addClass(c);this.styleQueue.push({$el:b,style:this.options.hiddenStyle})}this.styleQueue.push({$el:d,style:this.options.visibleStyle});d.removeClass(c)}return a},updateSortData:function(a,b){var c=this,d=this.options.getSortData,e,g;a.each(function(){e=f(this);g={};for(var h in d)g[h]=d[h](e,c);e.data("isotope-sort-data",g);b&&c.elemCount++})},_sort:function(){var a=this,b=function(d){return f(d).data("isotope-sort-data")[a.options.sortBy]},c=this.options.sortAscending?1:-1;this.$filteredAtoms.sort(function(d,
 e){var g=b(d),h=b(e);return(g>h?1:g<h?-1:0)*c});return this},_translate:function(a,b){return{translate:[a,b]}},_positionAbs:function(a,b){return{left:a,top:b}},_pushPosition:function(a,b,c){b=this.getPositionStyles(b,c);this.styleQueue.push({$el:a,style:b})},layout:function(a,b){var c=this.options.layoutMode;this["_"+c+"Layout"](a);this.options.resizesContainer&&this.styleQueue.push({$el:this.element,style:this["_"+c+"GetContainerSize"]()});var d=this.applyStyleFnName==="animate"&&!this.isLaidOut?
-"css":this.applyStyleFnName,e=this.options.animationOptions;f.each(this.styleQueue,function(g,h){h.$el[d](h.style,e)});this.styleQueue=[];b&&b.call(a);this.isLaidOut=true;return this},resize:function(){return this["_"+this.options.layoutMode+"Resize"]()},reLayout:function(a){return this["_"+this.options.layoutMode+"Reset"]().layout(this.$filteredAtoms,a)},addItems:function(a,b){var c=this._filterFind(a,this.options.itemSelector);this._setupAtoms(c);this.$allAtoms=this.$allAtoms.add(c);b&&b(c)},insert:function(a,
-b){this.element.append(a);var c=this;this.addItems(a,function(d){d=c._filter(d);c.$filteredAtoms=c.$filteredAtoms.add(d)});this._sort().reLayout(b)},appended:function(a,b){var c=this;this.addItems(a,function(d){c.$filteredAtoms=c.$filteredAtoms.add(d);c.layout(d,b)})},remove:function(a){this.$allAtoms=this.$allAtoms.not(a);this.$filteredAtoms=this.$filteredAtoms.not(a);a.remove()},_shuffleArray:function(a){var b,c,d=a.length;if(d)for(;--d;){c=~~(Math.random()*(d+1));b=a[c];a[c]=a[d];a[d]=b}return a},
-shuffle:function(a){this.options.sortBy="shuffle";this.$allAtoms=this._shuffleArray(this.$allAtoms);this.$filteredAtoms=this._filter(this.$allAtoms);return this.reLayout(a)},destroy:function(){var a=this.usingTransforms;this.$allAtoms.removeClass(this.options.hiddenClass+" "+this.options.itemClass).each(function(){this.style.position=null;this.style.top=null;this.style.left=null;this.style.opacity=null;if(a)this.style[k.transformProp]=null});for(var b=this.element[0].style,c=0,d=n.length;c<d;c++){var e=
-n[c];b[e]=this.originalStyle[e]}this.element.unbind(".isotope").removeClass(this.options.containerClass).removeData("isotope");f(l).unbind(".isotope")},_getSegments:function(a,b){var c=b?"rowHeight":"columnWidth",d=b?"height":"width",e=b?"rows":"cols";this[a][c]=this.options[a]&&this.options[a][c]||this.$allAtoms["outer"+(b?"Height":"Width")](true);if(!this[a][c]){f.error(c+" calculated to be zero. Stopping Isotope plugin before divide by zero. Check that the width of first child inside the isotope container is not zero.");
+"css":this.applyStyleFnName,e=this.options.animationOptions;f.each(this.styleQueue,function(g,h){h.$el[d](h.style,e)});this.styleQueue=[];b&&b.call(a);this.isLaidOut=true;return this},resize:function(){return this["_"+this.options.layoutMode+"Resize"]()},reLayout:function(a){return this.$allAtoms.length&&this.$filteredAtoms.length?this["_"+this.options.layoutMode+"Reset"]().layout(this.$filteredAtoms,a):this},addItems:function(a,b){var c=this._filterFind(a,this.options.itemSelector);this._setupAtoms(c);
+this.$allAtoms=this.$allAtoms.add(c);b&&b(c)},insert:function(a,b){this.element.append(a);var c=this;this.addItems(a,function(d){d=c._filter(d);c.$filteredAtoms=c.$filteredAtoms.add(d)});this._sort().reLayout(b)},appended:function(a,b){var c=this;this.addItems(a,function(d){c.$filteredAtoms=c.$filteredAtoms.add(d);c.layout(d,b)})},remove:function(a){this.$allAtoms=this.$allAtoms.not(a);this.$filteredAtoms=this.$filteredAtoms.not(a);a.remove()},_shuffleArray:function(a){var b,c,d=a.length;if(d)for(;--d;){c=
+~~(Math.random()*(d+1));b=a[c];a[c]=a[d];a[d]=b}return a},shuffle:function(a){this.options.sortBy="shuffle";this.$allAtoms=this._shuffleArray(this.$allAtoms);this.$filteredAtoms=this._filter(this.$allAtoms);return this.reLayout(a)},destroy:function(){var a=this.usingTransforms;this.$allAtoms.removeClass(this.options.hiddenClass+" "+this.options.itemClass).each(function(){this.style.position=null;this.style.top=null;this.style.left=null;this.style.opacity=null;if(a)this.style[k.transformProp]=null});
+for(var b=this.element[0].style,c=0,d=n.length;c<d;c++){var e=n[c];b[e]=this.originalStyle[e]}this.element.unbind(".isotope").removeClass(this.options.containerClass).removeData("isotope");f(l).unbind(".isotope")},_getSegments:function(a,b){var c=b?"rowHeight":"columnWidth",d=b?"height":"width",e=b?"rows":"cols";this[a][c]=this.options[a]&&this.options[a][c]||this.$allAtoms["outer"+(b?"Height":"Width")](true);if(!this[a][c]){f.error(c+" calculated to be zero. Stopping Isotope plugin before divide by zero. Check that the width of first child inside the isotope container is not zero.");
 return this}this[d]=this.element[d]();this[a][e]=Math.max(Math.floor(this[d]/this[a][c]),1);return this},_masonryPlaceBrick:function(a,b,c){b=Math.min.apply(Math,c);for(var d=b+a.outerHeight(true),e=c.length,g=e,h=this.masonry.cols+1-e;e--;)if(c[e]===b)g=e;this._pushPosition(a,this.masonry.columnWidth*g+this.posLeft,b);for(e=0;e<h;e++)this.masonry.colYs[g+e]=d},_masonryLayout:function(a){var b=this;a.each(function(){var c=f(this),d=Math.ceil(c.outerWidth(true)/b.masonry.columnWidth);d=Math.min(d,
 b.masonry.cols);if(d===1)b._masonryPlaceBrick(c,b.masonry.cols,b.masonry.colYs);else{var e=b.masonry.cols+1-d,g=[],h,i;for(i=0;i<e;i++){h=b.masonry.colYs.slice(i,i+d);g[i]=Math.max.apply(Math,h)}b._masonryPlaceBrick(c,e,g)}});return this},_masonryReset:function(){this.masonry={};this._getSegments("masonry");var a=this.masonry.cols;for(this.masonry.colYs=[];a--;)this.masonry.colYs.push(this.posTop);return this},_masonryResize:function(){var a=this.masonry.cols;this._getSegments("masonry");this.masonry.cols!==
 a&&this.reLayout();return this},_masonryGetContainerSize:function(){return{height:Math.max.apply(Math,this.masonry.colYs)-this.posTop}},_fitRowsLayout:function(a){this.width=this.element.width();var b=this;a.each(function(){var c=f(this),d=c.outerWidth(true),e=c.outerHeight(true);if(b.fitRows.x!==0&&d+b.fitRows.x>b.width){b.fitRows.x=0;b.fitRows.y=b.fitRows.height}b._pushPosition(c,b.fitRows.x+b.posLeft,b.fitRows.y+b.posTop);b.fitRows.height=Math.max(b.fitRows.y+e,b.fitRows.height);b.fitRows.x+=d});