From ebf840c35d9b2ca51975f0a0bb5c86816c2301dd Mon Sep 17 00:00:00 2001
From: Deathamns <deathamns@gmail.com>
Date: Mon, 16 Mar 2015 10:37:55 +0100
Subject: [PATCH] abp:subscribe fixes

Test a[href^="abp:"], since the protocol probably not used for anything
else, also "a", because ABP checks only anchors, and these links are made
only for ABP.

Also, the event target is not always the link, so at least some parents
should be tested as well.
---
 platform/firefox/vapi-background.js |  4 +---
 platform/firefox/vapi-common.js     |  3 ++-
 src/js/subscriber.js                | 22 ++++++++++++----------
 3 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/platform/firefox/vapi-background.js b/platform/firefox/vapi-background.js
index 2df36486a..c3a1f7456 100644
--- a/platform/firefox/vapi-background.js
+++ b/platform/firefox/vapi-background.js
@@ -455,11 +455,9 @@ vAPI.tabs.getTabId = function(target) {
     if ( vAPI.fennec ) {
         if ( target.browser ) {
             // target is a tab
-            return target.browser.loadContext.DOMWindowID;
+            target = target.browser;
         }
         return target.loadContext.DOMWindowID;
-
-        return -1;
     }
 
     if ( target.linkedPanel ) {
diff --git a/platform/firefox/vapi-common.js b/platform/firefox/vapi-common.js
index 8c461453d..c84d2813e 100644
--- a/platform/firefox/vapi-common.js
+++ b/platform/firefox/vapi-common.js
@@ -127,7 +127,8 @@ vAPI.localStorage = {
     getItem: function(key) {
         try {
             return this.PB.getComplexValue(
-                key, Components.interfaces.nsISupportsString
+                key,
+                Components.interfaces.nsISupportsString
             ).data;
         } catch (ex) {
             return null;
diff --git a/src/js/subscriber.js b/src/js/subscriber.js
index b98b4f46b..c1c6e61c7 100644
--- a/src/js/subscriber.js
+++ b/src/js/subscriber.js
@@ -37,7 +37,7 @@
 // https://github.com/gorhill/uBlock/issues/464
 if ( document instanceof HTMLDocument === false ) {
     //console.debug('contentscript-start.js > not a HTLMDocument');
-    return false;
+    return;
 }
 
 // Because in case
@@ -52,7 +52,7 @@ if ( !vAPI ) {
 // The links look like this:
 //   abp:subscribe?location=https://easylist-downloads.adblockplus.org/easyprivacy.txt[...]
 
-if ( document.querySelector('[href^="abp:subscribe?"]') === null ) {
+if ( document.querySelector('a[href^="abp:"]') === null ) {
     return;
 }
 
@@ -66,14 +66,16 @@ var onAbpLinkClicked = function(ev) {
     if ( ev.button !== 0 ) {
         return;
     }
-    var receiver = ev.target;
-    if ( receiver === null ) {
-        return;
-    }
-    if ( receiver.tagName.toLowerCase() !== 'a' ) {
-        return;
-    }
-    var href = receiver.getAttribute('href') || '';
+    var target = ev.target;
+    var limit = 3;
+    var href = '';
+    do {
+        if ( target instanceof HTMLAnchorElement ) {
+            href = target.href;
+            break;
+        }
+        target = target.parentNode;
+    } while ( target && --limit );
     if ( href === '' ) {
         return;
     }