Issue 3823 - Split up message responder code

lib/filterComposer.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/>.
  */
 
 /** @module filterComposer */
 
+"use strict";
+
 let {extractHostFromFrame, stringifyURL, isThirdParty} = require("url");
 let {getKey, checkWhitelisted} = require("whitelisting");
 let {defaultMatcher} = require("matcher");
 let {RegExpFilter} = require("filterClasses");
+let {port} = require("messaging");
 
 function isValidString(s) {
   return s && s.indexOf("\0") == -1;
 }
 
 function escapeChar(chr)
 {
   let code = chr.charCodeAt(0);
 
   // Control characters and leading digits must be escaped based on
@@ skipping 25 matching lines @@
  *
  * @param {string} value
  * @return {string}
  * @static
  */
 exports.quoteCSS = function(value)
 {
   return '"' + value.replace(/["\\\{\}\x00-\x1F\x7F]/g, escapeChar) + '"';
 };
 
-/**
- * Generates filters to block an element.
- * @param {Object}   details
- * @param {string}   details.tagName  The element's tag name
- * @param {string}   details.id       The element's "id" attribute
- * @param {string}   details.src      The element's "src" attribute
- * @param {string}   details.style    The element's "style" attribute
- * @param {string[]} details.classes  The classes given by the element's "class" attribute
- * @param {string[]} details.urls     The URLs considered when loading the element
- * @param {string}   details.type     The request type (will be ignored if there are no URLs)
- * @param {string}   details.baseURL  The URL of the document containing the element
- * @param {Page}     details.page     The page containing the element
- * @param {Frame}    details.frame    The frame containing the element
- *
- * @return {object} An object holding the list of generated filters and
- *                  the list of CSS selectors for the included element
- *                  hiding filters: {filters: [...], selectors: [...]}
- */
-exports.composeFilters = function(details)
+function composeFilters(details)
 {
   let filters = [];
   let selectors = [];
 
   let page = details.page;
   let frame = details.frame;
 
   if (!checkWhitelisted(page, frame))
   {
     let typeMask = RegExpFilter.typeMap[details.type];
@@ skipping 46 matching lines @@
       if (isValidString(details.style) && selectors.length == 0 && filters.length == 0)
         selectors.push(escapeCSS(details.tagName) + "[style=" + quoteCSS(details.style) + "]");
 
       // Add an element hiding filter for each generated CSS selector
       for (let selector of selectors)
         filters.push(docDomain.replace(/^www\./, "") + "##" + selector);
     }
   }
 
   return {filters: filters, selectors: selectors};
-};
+}
+
+port.on("composer.ready", (message, sender) =>
+{
+  htmlPages.set(sender.page, null);
+  refreshIconAndContextMenu(sender.page);
+});
+
+port.on("composer.openDialog", (message, sender) =>
+{
+  return new Promise(resolve =>
+  {
+    ext.windows.create({
+      url: ext.getURL("block.html"),
+      left: 50,
+      top: 50,
+      width: 420,
+      height: 200,
+      focused: true,
+      type: "popup"
+    },
+    popupPage =>
+    {
+      let popupPageId = popupPage.id;
+      function onRemoved(removedPageId)
+      {
+        if (popupPageId == removedPageId)
+        {
+          sender.page.sendMessage({
+            type: "blockelement-popup-closed",
+            popupId: popupPageId
+          });
+          ext.pages.onRemoved.removeListener(onRemoved);
+        }
+      }
+      ext.pages.onRemoved.addListener(onRemoved);
+      resolve(popupPageId);
+    });
+  });
+});
+
+port.on("composer.getFilters", (message, sender) =>
+{
+  return composeFilters({
+    tagName: message.tagName,
+    id:      message.id,
+    src:     message.src,
+    style:   message.style,
+    classes: message.classes,
+    urls:    message.urls,
+    type:    message.mediatype,
+    baseURL: message.baseURL,
+    page:    sender.page,
+    frame:   sender.frame
+  });
+});