Only schedule the icon cache expire when it's needed

2018-12-19 14:25:02 +01:00
parent a4fe067aad
commit 3193de0906
3 changed files with 12 additions and 3 deletions
@@ -37,11 +37,18 @@ class IconImageCache {
    this.cacheSize_ = 0;
  }

+  /**
+   * @return {boolean} Can expire cache.
+   */
+  canExpireCache() {
+    return this.cacheSize_ > this.maxCacheSize_;
+  }
+
  /**
  * FIXME empty description for jsdoc
  */
  expire() {
-    if (this.cacheSize_ > this.maxCacheSize_) {
+    if (this.canExpireCache()) {
      let i = 0;
      for (const key in this.cache_) {
        const iconImage = this.cache_[key];