Crawler, second version

chrome/content/crawler.js

-/*
- * This Source Code is subject to the terms of the Mozilla Public License
- * version 2.0 (the "License"). You can obtain a copy of the License at
- * http://mozilla.org/MPL/2.0/.
- */
-
-const Cu = Components.utils;
-
-Cu.import("resource://gre/modules/Services.jsm");
-
-let crawling = false;
-
-function require(module)
-{
-  let result = {};
-  result.wrappedJSObject = result;
-  Services.obs.notifyObservers(result, "abpcrawler-require", module);
-  return result.exports;
-}
-
-let {Crawler} = require("crawler");
-
-function onUnload()
-{
-  const fields = ["backend-url", "parallel-tabs"];
-  fields.forEach(function(field)
-  {
-    let control = document.getElementById(field);
-    control.setAttribute("value", control.value);
-  });
-}
-
-function getBackendUrl()
-{
-  let backendUrlTextBox = document.getElementById("backend-url");
-  return backendUrlTextBox.value;
-}
-
-function getParallelTabs()
-{
-  let parallelTabsTextBox = document.getElementById("parallel-tabs");
-  return parseInt(parallelTabsTextBox.value);
-}
-
-function onAccept()
-{
-  let backendUrl = getBackendUrl();
-  let parallelTabs = getParallelTabs();
-  let dialog = document.documentElement;
-  let acceptButton = dialog.getButton("accept");
-  crawling = acceptButton.disabled = true;
-
-  let mainWindow = window.opener;
-  if (!mainWindow || mainWindow.closed)
-  {
-    alert( "Unable to find the main window, aborting.");
-    crawling = acceptButton.disabled = false;
-  }
-  else
-    Crawler.crawl(backendUrl, parallelTabs, mainWindow, function()
-    {
-      crawling = acceptButton.disabled = false;
-    });
-
-  return false;
-}
-
-function onCancel()
-{
-  let closingPossible = !crawling;
-  if (!closingPossible)
-    alert("Crawling still in progress.");
-  return closingPossible;
-}