Issue 2426 - Open block.html as a popup window

subscriptionLink.postload.js

+/*
+ * This file is part of Adblock Plus <https://adblockplus.org/>,
+ * Copyright (C) 2006-2016 Eyeo GmbH
+ *
+ * Adblock Plus is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * Adblock Plus is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+"use strict";
+
+// In Chrome 37-40, the document_end content script (this one) runs properly,
+// while the document_start content scripts (that defines ext) might not. Check
+// whether variable ext exists before continuing to avoid
+// "Uncaught ReferenceError: ext is not defined". See https://crbug.com/416907
+if ("ext" in window && document instanceof HTMLDocument)
+{
+  document.addEventListener("click", function(event)
+  {
+    // Ignore right-clicks
+    if (event.button == 2)
+      return;
+
+    // Search the link associated with the click
+    var link = event.target;
+    while (!(link instanceof HTMLAnchorElement))
+    {
+      link = link.parentNode;
+
+      if (!link)
+        return;
+    }
+
+    if (link.protocol == "http:" || link.protocol == "https:")
+    {
+      if (link.host != "subscribe.adblockplus.org" || link.pathname != "/")
+        return;
+    }
+    else if (!/^abp:\/*subscribe\/*\?/i.test(link.href))
+      return;
+
+    // This is our link - make sure the browser doesn't handle it
+    event.preventDefault();
+    event.stopPropagation();
+
+    // Decode URL parameters
+    var params = link.search.substr(1).split("&");
+    var title = null;
+    var url = null;
+    for (var i = 0; i < params.length; i++)
+    {
+      var parts = params[i].split("=", 2);
+      if (parts.length != 2 || !/\S/.test(parts[1]))
+        continue;
+      switch (parts[0])
+      {
+        case "title":
+          title = decodeURIComponent(parts[1]);
+          break;
+        case "location":
+          url = decodeURIComponent(parts[1]);
+          break;
+      }
+    }
+    if (!url)
+      return;
+
+    // Default title to the URL
+    if (!title)
+      title = url;
+
+    // Trim spaces in title and URL
+    title = title.trim();
+    url = url.trim();
+    if (!/^(https?|ftp):/.test(url))
+      return;
+
+    ext.backgroundPage.sendMessage({
+      type: "add-subscription",
+      title: title,
+      url: url
+    });
+  }, true);
+}