Issue 2357 - Added "predefined list" dialog to options page

options.js

Index: options.js
===================================================================
--- a/options.js
+++ b/options.js
@@ -316,6 +316,55 @@
     request.send(null);
   }
 
+  function onClick(e)
+  {
+    var element = e.target;
+    while (true)
+    {
+      if (!element)
+        return;
+
+      if ("action" in element.dataset)
+        break;
+
+      element = element.parentNode;
+    }
+
+    switch (element.dataset.action)
+    {
+      case "add-domain-exception":
+        addWhitelistedDomain();
+        break;
+      case "add-subscription":
+        var dialog = E("dialog-content-addSubscription");
+        var title = dialog.querySelector("h3").textContent;
+        var url = dialog.querySelector(".url").textContent;
+        addEnableSubscription(url, title);
+        delete document.body.dataset.dialog;
+        break;
+      case "cancel-domain-exception":
+        E("whitelisting-textbox").value = "";
+        break;
+      case "close-dialog":
+        delete document.body.dataset.dialog;
+        break;
+      case "edit-custom-filters":
+        editCustomFilters();
+        break;
+      case "import-subscription":
+        var url = E("blockingList-textbox").value;
+        addEnableSubscription(url);
+        delete document.body.dataset.dialog;
+        break;
+      case "open-language-dialog":
+        openDialog("language");
+        break;
+      case "open-subscription-dialog":
+        openDialog("customlist");
+        break;
+    }
+  }
+
   function onDOMLoaded()
   {
     var recommendationTemplate = document.querySelector("#recommend-list-table template");
@@ -368,31 +417,10 @@
     updateShareLink();
 
     // Initialize interactive UI elements
+    document.body.addEventListener("click", onClick, false);
     var placeholderValue  = ext.i18n.getMessage("options_dialog_language_find");
     E("find-language").setAttribute("placeholder", placeholderValue);
-    E("add-blocking-list").addEventListener("click", function()
-    {
-      openDialog("customlist");
-    }, false);
-    E("add-website-language").addEventListener("click", function()
-    {
-      openDialog("language");
-    }, false);
-    E("dialog-close").addEventListener("click", function()
-    {
-      delete document.body.dataset.dialog;
-    }, false);
-    E("edit-ownBlockingList-button").addEventListener("click", editCustomFilters, false);
     E("find-language").addEventListener("keyup", onFindLanguageKeyUp, false);
-    E("whitelisting").addEventListener("click", function(e)
-    {
-      var id = e.target.id;
-      if (id == "whitelisting-add-icon" || id == "whitelisting-enter-icon")
-        addWhitelistedDomain();
-      else if (id == "whitelisting-cancel-button")
-        E("whitelisting-textbox").value = "";
-    }, false);
-    E("whitelisting-add-button").addEventListener("click", addWhitelistedDomain, false);
     E("whitelisting-textbox").addEventListener("keypress", function(e)
     {
       // e.keyCode has been deprecated so we attempt to use e.key
@@ -400,12 +428,6 @@
       if ((e.key && e.key == "Enter") || (!e.key && e.keyCode == 13))
         addWhitelistedDomain();
     }, false);
-    E("import-blockingList-button").addEventListener("click", function()
-    {
-      var url = E("blockingList-textbox").value;
-      addEnableSubscription(url);
-      delete document.body.dataset.dialog;
-    }, false);
   }
 
   function openDialog(name)
@@ -606,8 +628,10 @@
 
   function showAddSubscriptionDialog(subscription)
   {
-    E("blockingList-textbox").value = subscription.url;
-    openDialog("customlist");
+    var dialog = E("dialog-content-addSubscription");
+    dialog.querySelector("h3").textContent = subscription.title || "";
+    dialog.querySelector(".url").textContent = subscription.url;
+    openDialog("addSubscription");
   }
 
   function updateShareLink()