1 files changed, 40 insertions, 0 deletions
diff --git a/src/js/utils/style.js b/src/js/utils/style.js
new file mode 100644
index 00000000..a8eb393b
--- /dev/null
+++ b/src/js/utils/style.js
@@ -0,0 +1,40 @@
+// ==========================================================================
+// Style utils
+// ==========================================================================
+
+import is from './is';
+
+/* function reduceAspectRatio(width, height) {
+    const getRatio = (w, h) => (h === 0 ? w : getRatio(h, w % h));
+    const ratio = getRatio(width, height);
+    return `${width / ratio}:${height / ratio}`;
+} */
+
+// Set aspect ratio for responsive container
+export function setAspectRatio(input) {
+    let ratio = input;
+
+    if (!is.string(ratio) && !is.nullOrUndefined(this.embed)) {
+        ({ ratio } = this.embed);
+    }
+
+    if (!is.string(ratio)) {
+        ({ ratio } = this.config);
+    }
+
+    const [x, y] = ratio.split(':').map(Number);
+    const padding = (100 / x) * y;
+
+    this.elements.wrapper.style.paddingBottom = `${padding}%`;
+
+    // For Vimeo we have an extra <div> to hide the standard controls and UI
+    if (this.isVimeo && this.supported.ui) {
+        const height = 240;
+        const offset = (height - padding) / (height / 50);
+        this.media.style.transform = `translateY(-${offset}%)`;
+    }
+
+    return { padding, ratio };
+}
+
+export default { setAspectRatio };