enhance(editor): support time offset of youtube links

Close #10927

src/main/frontend/components/block.cljs

@@ -1353,7 +1353,10 @@
                   url)]
         (if (and (coll? src)
                  (= (first src) "youtube-player"))
-          (youtube/youtube-video (last src) nil)
+          (let [t (re-find #"&t=(\d+)" url)
+                opts (when (seq t)
+                       {:start (nth t 1)})]
+            (youtube/youtube-video (last src) opts))
           (when src
             (let [width (min (- (util/get-width) 96) 560)
                   height (int (* width (/ (if (string/includes? src "player.bilibili.com")

src/main/frontend/extensions/video/youtube.cljs

@@ -51,16 +51,20 @@
        (<! (load-youtube-api))
        (register-player state))
      state)}
-  [state id {:keys [width height] :as _opts}]
+  [state id {:keys [width height start] :as _opts}]
   (let [width  (or width (min (- (util/get-width) 96)
                               560))
-        height (or height (int (* width (/ 315 560))))]
+        height (or height (int (* width (/ 315 560))))
+        url (str "https://www.youtube.com/embed/" id "?enablejsapi=1")
+        url (if start
+              (str url "&start=" start)
+              url)]
     [:iframe
      {:id                (str "youtube-player-" id)
       :allow-full-screen "allowfullscreen"
       :allow             "accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope"
       :frame-border      "0"
-      :src               (str "https://www.youtube.com/embed/" id "?enablejsapi=1")
+      :src               url
       :height            height
       :width             width}]))