fix bug

2018-11-05 21:45:20 +08:00 · 2018-11-05 21:45:20 +08:00 · 3d2bcadf33
parent b420188131
commit 3d2bcadf33
1 changed files with 12 additions and 1 deletions
--- a/packages/omi/src/we-element.js
+++ b/packages/omi/src/we-element.js
@ -28,7 +28,18 @@ export default class WeElement extends HTMLElement {
    }

    this.install()
-    const shadowRoot = this.attachShadow({ mode: 'open' })
+    var shadowRoot
+    if (!this.shadowRoot) {
+      shadowRoot = this.attachShadow({
+        mode: 'open'
+      })
+    } else {
+      shadowRoot = this.shadowRoot
+      var fc
+      while (fc = shadowRoot.firstChild) {
+        shadowRoot.removeChild(fc)
+      }
+    }

    this.css && shadowRoot.appendChild(cssToDom(this.css()))
    this.beforeRender()