planning

node_modules/@juggle/resize-observer/lib/ResizeObservation.js

@@ -0,0 +1,31 @@
+import { ResizeObserverBoxOptions } from './ResizeObserverBoxOptions';
+import { calculateBoxSize } from './algorithms/calculateBoxSize';
+import { isSVG, isReplacedElement } from './utils/element';
+var skipNotifyOnElement = function (target) {
+    return !isSVG(target)
+        && !isReplacedElement(target)
+        && getComputedStyle(target).display === 'inline';
+};
+var ResizeObservation = (function () {
+    function ResizeObservation(target, observedBox) {
+        this.target = target;
+        this.observedBox = observedBox || ResizeObserverBoxOptions.CONTENT_BOX;
+        this.lastReportedSize = {
+            inlineSize: 0,
+            blockSize: 0
+        };
+    }
+    ResizeObservation.prototype.isActive = function () {
+        var size = calculateBoxSize(this.target, this.observedBox, true);
+        if (skipNotifyOnElement(this.target)) {
+            this.lastReportedSize = size;
+        }
+        if (this.lastReportedSize.inlineSize !== size.inlineSize
+            || this.lastReportedSize.blockSize !== size.blockSize) {
+            return true;
+        }
+        return false;
+    };
+    return ResizeObservation;
+}());
+export { ResizeObservation };