Upgrade to ExtJS 4.0.0 - Released 04/26/2011

[extjs.git] / src / ShadowPool.js

diff --git a/src/ShadowPool.js b/src/ShadowPool.js
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+++ b/src/ShadowPool.js
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+/**
+ * @class Ext.ShadowPool
+ * @extends Object
+ * Private utility class that manages the internal Shadow cache
+ * @private
+ */
+Ext.define('Ext.ShadowPool', {
+    singleton: true,
+    requires: ['Ext.core.DomHelper'],
+
+    markup: function() {
+        if (Ext.supports.CSS3BoxShadow) {
+            return '<div class="' + Ext.baseCSSPrefix + 'css-shadow" role="presentation"></div>';
+        } else if (Ext.isIE) {
+            return '<div class="' + Ext.baseCSSPrefix + 'ie-shadow" role="presentation"></div>';
+        } else {
+            return '<div class="' + Ext.baseCSSPrefix + 'frame-shadow" role="presentation">' +
+                '<div class="xst" role="presentation">' +
+                    '<div class="xstl" role="presentation"></div>' +
+                    '<div class="xstc" role="presentation"></div>' +
+                    '<div class="xstr" role="presentation"></div>' +
+                '</div>' +
+                '<div class="xsc" role="presentation">' +
+                    '<div class="xsml" role="presentation"></div>' +
+                    '<div class="xsmc" role="presentation"></div>' +
+                    '<div class="xsmr" role="presentation"></div>' +
+                '</div>' +
+                '<div class="xsb" role="presentation">' +
+                    '<div class="xsbl" role="presentation"></div>' +
+                    '<div class="xsbc" role="presentation"></div>' +
+                    '<div class="xsbr" role="presentation"></div>' +
+                '</div>' +
+            '</div>';
+        }
+    }(),
+
+    shadows: [],
+
+    pull: function() {
+        var sh = this.shadows.shift();
+        if (!sh) {
+            sh = Ext.get(Ext.core.DomHelper.insertHtml("beforeBegin", document.body.firstChild, this.markup));
+            sh.autoBoxAdjust = false;
+        }
+        return sh;
+    },
+
+    push: function(sh) {
+        this.shadows.push(sh);
+    },
+    
+    reset: function() {
+        Ext.Array.each(this.shadows, function(shadow) {
+            shadow.remove();
+        });
+        this.shadows = [];
+    }
+});
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