From a2940066c8bb6133382c7b3ec7018cbff0f0bf97 Mon Sep 17 00:00:00 2001
From: Scott J Miles <sjmiles@google.com>
Date: Tue, 26 May 2015 10:04:38 -0700
Subject: [PATCH] don't try to initialize before `_iconsetName` is valued

---
 iron-icon.html | 138 +++++++++++++++++++++++++------------------------
 1 file changed, 70 insertions(+), 68 deletions(-)

diff --git a/iron-icon.html b/iron-icon.html
index f214799..ea9778a 100644
--- a/iron-icon.html
+++ b/iron-icon.html
@@ -103,83 +103,85 @@
     <iron-meta id="meta" type="iconset"></iron-meta>
   </template>
 
-</dom-module>
-
-<script>
-
-  Polymer({
-
-    is: 'iron-icon',
+  <script>
+
+    Polymer({
+
+      is: 'iron-icon',
+
+      properties: {
+
+        /**
+         * The name of the icon to use. The name should be of the form:
+         * `iconset_name:icon_name`.
+         */
+        icon: {
+          type: String,
+          observer: '_iconChanged'
+        },
+
+        /**
+         * The name of the theme to used, if one is specified by the
+         * iconset.
+         */
+        theme: {
+          type: String,
+          observer: '_updateIcon'
+        },
+
+        /**
+         * If using iron-icon without an iconset, you can set the src to be
+         * the URL of an individual icon image file. Note that this will take
+         * precedence over a given icon attribute.
+         */
+        src: {
+          type: String,
+          observer: '_srcChanged'
+        }
+      },
 
-    properties: {
+      _DEFAULT_ICONSET: 'icons',
 
-      /**
-       * The name of the icon to use. The name should be of the form:
-       * `iconset_name:icon_name`.
-       */
-      icon: {
-        type: String,
-        observer: '_iconChanged'
+      _iconChanged: function(icon) {
+        var parts = (icon || '').split(':');
+        this._iconName = parts.pop();
+        this._iconsetName = parts.pop() || this._DEFAULT_ICONSET;
+        this._updateIcon();
       },
 
-      /**
-       * The name of the theme to used, if one is specified by the
-       * iconset.
-       */
-      theme: {
-        type: String,
-        observer: '_updateIcon'
+      _srcChanged: function(src) {
+        this._updateIcon();
       },
 
-      /**
-       * If using iron-icon without an iconset, you can set the src to be
-       * the URL of an individual icon image file. Note that this will take
-       * precedence over a given icon attribute.
-       */
-      src: {
-        type: String,
-        observer: '_srcChanged'
-      }
-
-    },
-
-    _DEFAULT_ICONSET: 'icons',
-
-    _iconChanged: function(icon) {
-      var parts = (icon || '').split(':');
-      this._iconName = parts.pop();
-      this._iconsetName = parts.pop() || this._DEFAULT_ICONSET;
-      this._updateIcon();
-    },
-
-    _srcChanged: function(src) {
-      this._updateIcon();
-    },
-
-    _usesIconset: function() {
-      return this.icon || !this.src;
-    },
+      _usesIconset: function() {
+        return this.icon || !this.src;
+      },
 
-    _updateIcon: function() {
-      if (this._usesIconset()) {
-        this._iconset =  this.$.meta.byKey(this._iconsetName);
-        if (this._iconset) {
-          this._iconset.applyIcon(this, this._iconName, this.theme);
+      _updateIcon: function() {
+        if (this._usesIconset()) {
+          if (this._iconsetName) {
+            this._iconset = this.$.meta.byKey(this._iconsetName);
+            if (this._iconset) {
+              this._iconset.applyIcon(this, this._iconName, this.theme);
+            } else {
+              this._warn(this._logf('_updateIcon', 'could not find iconset `'
+                + this._iconsetName + '`, did you import the iconset?'));
+            }
+          }
         } else {
-          console.warn('iron-icon: could not find iconset `'
-            + this._iconsetName + '`, did you import the iconset?');
-        }
-      } else {
-        if (!this._img) {
-          this._img = document.createElement('img');
-          this._img.style.width = '100%';
-          this._img.style.height = '100%';
+          if (!this._img) {
+            this._img = document.createElement('img');
+            this._img.style.width = '100%';
+            this._img.style.height = '100%';
+          }
+          this._img.src = this.src;
+          Polymer.dom(this.root).appendChild(this._img);
         }
-        this._img.src = this.src;
-        Polymer.dom(this.root).appendChild(this._img);
       }
-    }
 
-  });
+    });
+
+  </script>
+
+</dom-module>
 
-</script>