fix: fix undefined error in media dialog scroll (#1048)

2019-02-26 22:18:24 -08:00 · 2019-02-26 22:18:24 -08:00 · b0aa86ef44
parent b7299f53fb
commit b0aa86ef44
1 changed files with 5 additions and 1 deletions
--- a/src/routes/_components/dialog/components/MediaDialog.html
+++ b/src/routes/_components/dialog/components/MediaDialog.html
@ -266,7 +266,11 @@
      },
      onScroll () {
        let { length } = this.get()
-        let { scrollWidth, scrollLeft } = this.refs.scroller
+        let { scroller } = this.refs
+        if (!scroller) {
+          return
+        }
+        let { scrollWidth, scrollLeft } = scroller
        let scrolledItem = Math.round((scrollLeft / scrollWidth) * length)
        this.set({ scrolledItem })
      },