From ca7f1552fe7c8b6425e9c10604980565450c6852 Mon Sep 17 00:00:00 2001
From: Yoshi Huang <allstars.chh@mozilla.com>
Date: Wed, 31 Dec 2014 17:08:17 +0800
Subject: [PATCH] Bug 1116725 - TypeError : isLost is a readonly attribute.
 r=smaug, dimi

---
 dom/nfc/nsNfc.js             | 12 ++++++++++--
 dom/webidl/MozNFCPeer.webidl | 11 +++++++----
 dom/webidl/MozNFCTag.webidl  | 11 +++++++----
 3 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/dom/nfc/nsNfc.js b/dom/nfc/nsNfc.js
index 78c88167333e..7033155ba7df 100644
--- a/dom/nfc/nsNfc.js
+++ b/dom/nfc/nsNfc.js
@@ -192,6 +192,10 @@ MozNFCTagImpl.prototype = {
     return callback.promise;
   },
 
+  notifyLost: function notifyLost() {
+    this.isLost = true;
+  },
+
   classID: Components.ID("{4e1e2e90-3137-11e3-aa6e-0800200c9a66}"),
   contractID: "@mozilla.org/nfc/tag;1",
   QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
@@ -244,6 +248,10 @@ MozNFCPeerImpl.prototype = {
     return callback.promise;
   },
 
+  notifyLost: function notifyLost() {
+    this.isLost = true;
+  },
+
   classID: Components.ID("{c1b2bcf0-35eb-11e3-aa6e-0800200c9a66}"),
   contractID: "@mozilla.org/nfc/peer;1",
   QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
@@ -432,7 +440,7 @@ MozNFCImpl.prototype = {
         this, /* useCapture */false);
     }
 
-    this.nfcTag.isLost = true;
+    this.nfcTag.notifyLost();
     this.nfcTag = null;
 
     debug("fire ontaglost " + sessionToken);
@@ -491,7 +499,7 @@ MozNFCImpl.prototype = {
         this, /* useCapture */false);
     }
 
-    this.nfcPeer.isLost = true;
+    this.nfcPeer.notifyLost();
     this.nfcPeer = null;
 
     debug("fire onpeerlost");
diff --git a/dom/webidl/MozNFCPeer.webidl b/dom/webidl/MozNFCPeer.webidl
index a98b7a635c5d..1ab4bccce2ef 100644
--- a/dom/webidl/MozNFCPeer.webidl
+++ b/dom/webidl/MozNFCPeer.webidl
@@ -10,6 +10,11 @@
 
 [JSImplementation="@mozilla.org/nfc/peer;1", AvailableIn="PrivilegedApps"]
 interface MozNFCPeer {
+  /**
+   * Indicate if this peer is already lost.
+   */
+  readonly attribute boolean isLost;
+
   /**
    * Send NDEF data to peer device.
    */
@@ -28,8 +33,6 @@ partial interface MozNFCPeer {
   [ChromeOnly]
   attribute DOMString session;
 
-  /**
-   * Indicate if this peer is already lost.
-   */
-  readonly attribute boolean isLost;
+  [ChromeOnly]
+  void notifyLost();
 };
diff --git a/dom/webidl/MozNFCTag.webidl b/dom/webidl/MozNFCTag.webidl
index 07b31ab1f2c9..07f564b4ef05 100644
--- a/dom/webidl/MozNFCTag.webidl
+++ b/dom/webidl/MozNFCTag.webidl
@@ -72,6 +72,11 @@ interface MozNFCTag {
    */
   readonly attribute boolean? canBeMadeReadOnly;
 
+  /**
+   * Indicate if this tag is already lost.
+   */
+  readonly attribute boolean isLost;
+
   /**
    * Read current NDEF data on the tag.
    */
@@ -102,8 +107,6 @@ partial interface MozNFCTag {
   [ChromeOnly]
   attribute DOMString session;
 
-  /**
-   * Indicate if this tag is already lost.
-   */
-  readonly attribute boolean isLost;
+  [ChromeOnly]
+  void notifyLost();
 };