1 files changed, 83 insertions, 0 deletions
diff --git a/dom/browser-element/BrowserElementChild.js b/dom/browser-element/BrowserElementChild.js
new file mode 100644
index 000000000..066be66d2
--- /dev/null
+++ b/dom/browser-element/BrowserElementChild.js
@@ -0,0 +1,83 @@
+/* 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";
+
+var { classes: Cc, interfaces: Ci, results: Cr, utils: Cu }  = Components;
+Cu.import("resource://gre/modules/Services.jsm");
+
+function debug(msg) {
+  //dump("BrowserElementChild - " + msg + "\n");
+}
+
+// NB: this must happen before we process any messages from
+// mozbrowser API clients.
+docShell.isActive = true;
+
+function parentDocShell(docshell) {
+  if (!docshell) {
+    return null;
+  }
+  let treeitem = docshell.QueryInterface(Ci.nsIDocShellTreeItem);
+  return treeitem.parent ? treeitem.parent.QueryInterface(Ci.nsIDocShell) : null;
+}
+
+function isTopBrowserElement(docShell) {
+  while (docShell) {
+    docShell = parentDocShell(docShell);
+    if (docShell && docShell.isMozBrowserOrApp) {
+      return false;
+    }
+  }
+  return true;
+}
+
+var BrowserElementIsReady;
+
+debug(`Might load BE scripts: BEIR: ${BrowserElementIsReady}`);
+if (!BrowserElementIsReady) {
+  debug("Loading BE scripts")
+  if (!("BrowserElementIsPreloaded" in this)) {
+    if (isTopBrowserElement(docShell)) {
+      if (Services.prefs.getBoolPref("dom.mozInputMethod.enabled")) {
+        try {
+          Services.scriptloader.loadSubScript("chrome://global/content/forms.js");
+        } catch (e) {
+        }
+      }
+    }
+
+    if(Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT) {
+      // general content apps
+      if (isTopBrowserElement(docShell)) {
+        Services.scriptloader.loadSubScript("chrome://global/content/BrowserElementCopyPaste.js");
+      }
+    } else {
+      // rocketbar in system app and other in-process case (ex. B2G desktop client)
+      Services.scriptloader.loadSubScript("chrome://global/content/BrowserElementCopyPaste.js");
+    }
+
+    Services.scriptloader.loadSubScript("chrome://global/content/BrowserElementChildPreload.js");
+  }
+
+  function onDestroy() {
+    removeMessageListener("browser-element-api:destroy", onDestroy);
+
+    if (api) {
+      api.destroy();
+    }
+    if ("CopyPasteAssistent" in this) {
+      CopyPasteAssistent.destroy();
+    }
+
+    BrowserElementIsReady = false;
+  }
+  addMessageListener("browser-element-api:destroy", onDestroy);
+
+  BrowserElementIsReady = true;
+} else {
+  debug("BE already loaded, abort");
+}
+
+sendAsyncMessage('browser-element-api:call', { 'msg_name': 'hello' });