1 files changed, 95 insertions, 0 deletions
diff --git a/dom/permission/PermissionPromptService.js b/dom/permission/PermissionPromptService.js
new file mode 100644
index 000000000..47418d5de
--- /dev/null
+++ b/dom/permission/PermissionPromptService.js
@@ -0,0 +1,95 @@
+/* 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";
+
+/* static functions */
+var DEBUG = 0;
+var debug;
+if (DEBUG) {
+  debug = function (s) { dump("-*- PermissionPromptService: " + s + "\n"); };
+}
+else {
+  debug = function (s) {};
+}
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cu = Components.utils;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/PermissionsInstaller.jsm");
+
+const PERMISSIONPROMPTSERVICE_CONTRACTID = "@mozilla.org/permission-prompt-service;1";
+const PERMISSIONPROMPTSERVICE_CID = Components.ID("{e5f953b3-a6ca-444e-a88d-cdc81383741c}");
+const permissionPromptService = Ci.nsIPermissionPromptService;
+
+var permissionManager = Cc["@mozilla.org/permissionmanager;1"].getService(Ci.nsIPermissionManager);
+var secMan = Cc["@mozilla.org/scriptsecuritymanager;1"].getService(Ci.nsIScriptSecurityManager);
+
+function makePrompt()
+{
+  return Cc["@mozilla.org/content-permission/prompt;1"].createInstance(Ci.nsIContentPermissionPrompt);
+}
+
+function PermissionPromptService()
+{
+  debug("Constructor");
+}
+
+PermissionPromptService.prototype = {
+
+  classID : PERMISSIONPROMPTSERVICE_CID,
+
+  QueryInterface : XPCOMUtils.generateQI([permissionPromptService, Ci.nsIObserver]),
+
+  classInfo : XPCOMUtils.generateCI({classID: PERMISSIONPROMPTSERVICE_CID,
+                                     contractID: PERMISSIONPROMPTSERVICE_CONTRACTID,
+                                     classDescription: "PermissionPromptService",
+                                     interfaces: [permissionPromptService]
+                                     }),
+  /**
+   * getPermission
+   *   Ask for permission for an API, device, etc.
+   * @param nsIContentPermissionRequest aRequest
+   * @returns void
+   **/
+  getPermission: function PS_getPermission(aRequest)
+  {
+    if (!(aRequest instanceof Ci.nsIContentPermissionRequest)) {
+      throw new Error("PermissionService.getPermission: "
+                      + "2nd argument must be type 'nsIContentPermissionRequest'");
+    }
+
+    // Only allow exactly one permission request here.
+    let types = aRequest.types.QueryInterface(Ci.nsIArray);
+    if (types.length != 1) {
+      aRequest.cancel();
+      return;
+    }
+    let reqType = types.queryElementAt(0, Ci.nsIContentPermissionType);
+
+    let type = reqType.access !== "unused" ? reqType.type + "-" + reqType.access
+                                           : reqType.type;
+    let perm =
+      permissionManager.testExactPermissionFromPrincipal(aRequest.principal, type);
+
+    switch (perm) {
+      case Ci.nsIPermissionManager.ALLOW_ACTION:
+        aRequest.allow();
+        break;
+      case Ci.nsIPermissionManager.PROMPT_ACTION:
+        makePrompt().prompt(aRequest);
+        break;
+      case Ci.nsIPermissionManager.DENY_ACTION:
+      case Ci.nsIPermissionManager.UNKNOWN_ACTION:
+    default:
+      aRequest.cancel();
+      break;
+    }
+  },
+};
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([PermissionPromptService]);