1 files changed, 49 insertions, 0 deletions
diff --git a/toolkit/content/widgets/pluginProblem.js b/toolkit/content/widgets/pluginProblem.js
new file mode 100644
index 0000000000..d918acd25a
--- /dev/null
+++ b/toolkit/content/widgets/pluginProblem.js
@@ -0,0 +1,49 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+// This is a UA Widget. It runs in per-origin UA widget scope,
+// to be loaded by UAWidgetsChild.jsm.
+// This widget results in a hidden element that occupies room where the plugin
+// would be if we still supported plugins.
+this.PluginProblemWidget = class {
+  constructor(shadowRoot) {
+    this.shadowRoot = shadowRoot;
+    this.element = shadowRoot.host;
+    // ownerGlobal is chrome-only, not accessible to UA Widget script here.
+    this.window = this.element.ownerDocument.defaultView; // eslint-disable-line mozilla/use-ownerGlobal
+  }
+
+  onsetup() {
+    const parser = new this.window.DOMParser();
+    parser.forceEnableDTD();
+    let parserDoc = parser.parseFromString(
+      `
+      <!DOCTYPE bindings [
+        <!ENTITY % globalDTD SYSTEM "chrome://global/locale/global.dtd">
+        <!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd" >
+        %globalDTD;
+        %brandDTD;
+      ]>
+      <div xmlns="http://www.w3.org/1999/xhtml" class="mainBox" id="main" chromedir="&locale.dir;">
+        <link rel="stylesheet" type="text/css" href="chrome://pluginproblem/content/pluginProblemContent.css" />
+      </div>
+    `,
+      "application/xml"
+    );
+    this.shadowRoot.importNodeAndAppendChildAt(
+      this.shadowRoot,
+      parserDoc.documentElement,
+      true
+    );
+
+    // Notify browser-plugins.js that we were attached, on a delay because
+    // this binding doesn't complete layout until the constructor
+    // completes.
+    this.element.dispatchEvent(
+      new this.window.CustomEvent("PluginBindingAttached")
+    );
+  }
+};