Trigger initially the resize sensor, fixes #265

src/ElementQueries.js

@@ -170,13 +170,12 @@
             if (!element.elementQueriesSetupInformation) {
                 element.elementQueriesSetupInformation = new SetupInformation(element, id);
             }
+
             if (!element.elementQueriesSensor) {
                 element.elementQueriesSensor = new ResizeSensor(element, function () {
                     element.elementQueriesSetupInformation.call();
                 });
             }
-
-            element.elementQueriesSetupInformation.call();
         }
 
         /**
@@ -441,7 +440,7 @@
             for (var i = 0, j = document.styleSheets.length; i < j; i++) {
                 try {
                     if (document.styleSheets[i].href && 0 === document.styleSheets[i].href.indexOf('file://')) {
-                        console.log("CssElementQueries: unable to parse local css files, " + document.styleSheets[i].href);
+                        console.warn("CssElementQueries: unable to parse local css files, " + document.styleSheets[i].href);
                     }
 
                     readRules(document.styleSheets[i].cssRules || document.styleSheets[i].rules || document.styleSheets[i].cssText);

src/ResizeSensor.d.ts

@@ -1,11 +1,32 @@
 export declare type ResizeSensorCallback = (size: { width: number; height: number; }) => void;
 
 export declare class ResizeSensor {
+    /**
+     * Creates a new resize sensor on given elements. The provided callback is called max 1 times per requestAnimationFrame and
+     * is called initially.
+     */
     constructor(element: Element | Element[], callback: ResizeSensorCallback);
+
+    /**
+     * Removes the resize sensor, and stops listening to resize events.
+     */
     detach(callback?: ResizeSensorCallback): void;
+
+    /**
+     * Resets the resize sensors, so for the next element resize is correctly detected. This is rare cases necessary
+     * when the resize sensor isn't initialised correctly or is in a broken state due to DOM modifications.
+     */
     reset(): void;
 
+    /**
+     * Removes the resize sensor, and stops listening to resize events.
+     */
     static detach(element: Element | Element[], callback?: ResizeSensorCallback): void;
+
+    /**
+     * Resets the resize sensors, so for the next element resize is correctly detected. This is rare cases necessary
+     * when the resize sensor isn't initialised correctly or is in a broken state due to DOM modifications.
+     */
     static reset(element: Element | Element[]): void;
 }
 

src/ResizeSensor.js

@@ -201,8 +201,8 @@
 
             var dirty, rafId;
             var size = getElementSize(element);
-            var lastWidth = size.width;
-            var lastHeight = size.height;
+            var lastWidth = 0;
+            var lastHeight = 0;
             var initialHiddenCheck = true;
             var lastAnimationFrame = 0;