From 60df32aab5106fa375347627517ce066daf4e301 Mon Sep 17 00:00:00 2001
From: Cheng Zhao <zcbenz@gmail.com>
Date: Wed, 17 Dec 2014 14:55:22 -0800
Subject: [PATCH] Add "will-navigate" event for WebContents

---
 atom/browser/api/atom_api_web_contents.cc | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/atom/browser/api/atom_api_web_contents.cc b/atom/browser/api/atom_api_web_contents.cc
index 7bd1095b8a9f..10f91c47bcb4 100644
--- a/atom/browser/api/atom_api_web_contents.cc
+++ b/atom/browser/api/atom_api_web_contents.cc
@@ -111,9 +111,15 @@ content::WebContents* WebContents::OpenURLFromTab(
     args.AppendString("");
     args.AppendInteger(params.disposition);
     Emit("-new-window", args);
-    return NULL;
+    return nullptr;
   }
 
+  // Give user a chance to cancel navigation.
+  base::ListValue args;
+  args.AppendString(params.url.spec());
+  if (Emit("will-navigate", args))
+    return nullptr;
+
   content::NavigationController::LoadURLParams load_url_params(params.url);
   load_url_params.referrer = params.referrer;
   load_url_params.transition_type = params.transition;