The Tor Browser: dom/tests/browser/browser_focus_steal_from_chrome.js@97036ab72558 (annotated)

dom/tests/browser/browser_focus_steal_from_chrome.js@97036ab72558 (annotated)

dom/tests/browser/browser_focus_steal_from_chrome.js

Tue, 06 Jan 2015 21:39:09 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Tue, 06 Jan 2015 21:39:09 +0100
branch: TOR_BUG_9701
changeset 8: 97036ab72558
permissions: -rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

 function test() {
   waitForExplicitFinish();
   let secMan = Components.classes["@mozilla.org/scriptsecuritymanager;1"]
                          .getService(Components.interfaces
                                                .nsIScriptSecurityManager);
   let fm = Components.classes["@mozilla.org/focus-manager;1"]
                      .getService(Components.interfaces.nsIFocusManager);
   let tabs = [ gBrowser.addTab(), gBrowser.addTab() ];
   gBrowser.selectedTab = tabs[0];
   let testingList = [
     { uri: "data:text/html,<body onload=\"setTimeout(function () { document.getElementById('target').focus(); }, 10);\"><input id='target'></body>",
       tagName: "INPUT", methodName: "focus" },
     { uri: "data:text/html,<body onload=\"setTimeout(function () { document.getElementById('target').select(); }, 10);\"><input id='target'></body>",
       tagName: "INPUT", methodName: "select" },
     { uri: "data:text/html,<body onload=\"setTimeout(function () { document.getElementById('target').focus(); }, 10);\"><a href='about:blank' id='target'>anchor</a></body>",
       tagName: "A", methodName: "focus" },
     { uri: "data:text/html,<body onload=\"setTimeout(function () { document.getElementById('target').focus(); }, 10);\"><button id='target'>button</button></body>",
       tagName: "BUTTON", methodName: "focus" },
     { uri: "data:text/html,<body onload=\"setTimeout(function () { document.getElementById('target').focus(); }, 10);\"><select id='target'><option>item1</option></select></body>",
       tagName: "SELECT", methodName: "focus" },
     { uri: "data:text/html,<body onload=\"setTimeout(function () { document.getElementById('target').focus(); }, 10);\"><textarea id='target'>textarea</textarea></body>",
       tagName: "TEXTAREA", methodName: "focus" },
     { uri: "data:text/html,<body onload=\"setTimeout(function () { document.getElementById('target').select(); }, 10);\"><textarea id='target'>textarea</textarea></body>",
       tagName: "TEXTAREA", methodName: "select" },
     { uri: "data:text/html,<body onload=\"setTimeout(function () { document.getElementById('target').focus(); }, 10);\"><label id='target'><input></label></body>",
       tagName: "INPUT", methodName: "focus of label element" },
     { uri: "data:text/html,<body onload=\"setTimeout(function () { document.getElementById('target').focus(); }, 10);\"><fieldset><legend id='target'>legend</legend><input></fieldset></body>",
       tagName: "INPUT", methodName: "focus of legend element" },
     { uri: "data:text/html,<body onload=\"setTimeout(function () {" +
            "  var element = document.getElementById('target');" +
            "  var event = document.createEvent('MouseEvent');" +
            "  event.initMouseEvent('click', true, true, window," +
            "    1, 0, 0, 0, 0, false, false, false, false, 0, element);" +
            "  element.dispatchEvent(event); }, 10);\">" +
            "<label id='target'><input></label></body>",
       tagName: "INPUT", methodName: "click event on the label element" },
   ];
   if (navigator.platform.indexOf("Mac") == -1) {
     // clicking buttons doesn't focus on mac, so skip this test
     testingList.push(
       { uri: "data:text/html,<body onload=\"setTimeout(function () {" +
              "  var element = document.getElementById('target');" +
              "  var event = document.createEvent('MouseEvent');" +
              "  event.initMouseEvent('mousedown', true, true, window," +
              "    0, 0, 0, 0, 0, false, false, false, false, 0, element);" +
              "  element.dispatchEvent(event); }, 10);\">" +
              "<button id='target'>button</button></body>",
         tagName: "BUTTON", methodName: "mousedown event on the button element" });
   }
   let testingIndex = -1;
   let canRetry;
   let callback;
   let loadedCount;
   let setFocusToChrome;
   function runNextTest() {
     if (++testingIndex >= testingList.length) {
       // cleaning-up...
       for (let i = 0; i < tabs.length; i++) {
         gBrowser.removeTab(tabs[i]);
       }
       finish();
       return;
     }
     callback = doTest1;
     loadTestPage(false);
   }
   function loadTestPage(aSetFocusToChrome) {
     loadedCount = 0;
     canRetry = 10;
     setFocusToChrome = aSetFocusToChrome;
     // Set the focus to the contents.
     tabs[0].linkedBrowser.focus();
     // Load on the tabs
     tabs[0].linkedBrowser.addEventListener("load", onLoadForegroundTab, true);
     tabs[0].linkedBrowser.loadURI(testingList[testingIndex].uri);
     tabs[1].linkedBrowser.addEventListener("load", onLoadBackgroundTab, true);
     tabs[1].linkedBrowser.loadURI(testingList[testingIndex].uri);
   }
   function onLoadForegroundTab() {
     tabs[0].linkedBrowser.removeEventListener("load", onLoadForegroundTab, true);
     if (setFocusToChrome) {
       // Set focus to a chrome element before the loaded content tries to move
       // focus.
       document.getElementById("urlbar").focus();
     }
     onLoadComplete();
   }
   function onLoadBackgroundTab() {
     tabs[1].linkedBrowser.removeEventListener("load", onLoadBackgroundTab, true);
     onLoadComplete();
   }
   function onLoadComplete() {
     if (++loadedCount == tabs.length) {
       setTimeout(callback, 20);
     }
   }
   function isPrepared() {
     for (let i = 0; i < tabs.length; i++) {
       if (tabs[i].linkedBrowser.contentDocument.activeElement.tagName !=
             testingList[testingIndex].tagName) {
         return false;
       }
     }
     return true;
   }
   function doTest1() {
     if (canRetry-- > 0 && !isPrepared()) {
       setTimeout(callback, 10); // retry
       return;
     }
     // The contents should be able to steal the focus from content.
     // in foreground tab
     let e = tabs[0].linkedBrowser.contentDocument.activeElement;
     is(e.tagName, testingList[testingIndex].tagName,
        "the foreground tab's " + testingList[testingIndex].tagName +
        " element is not active by the " + testingList[testingIndex].methodName +
        " (Test1: content can steal focus)");
     is(fm.focusedElement, e,
        "the " + testingList[testingIndex].tagName +
        " element isn't focused by the " + testingList[testingIndex].methodName +
        " (Test1: content can steal focus)");
     // in background tab
     e = tabs[1].linkedBrowser.contentDocument.activeElement;
     is(e.tagName, testingList[testingIndex].tagName,
        "the background tab's " + testingList[testingIndex].tagName +
        " element is not active by the " + testingList[testingIndex].methodName +
        " (Test1: content can steal focus)");
     isnot(fm.focusedElement, e,
           "the " + testingList[testingIndex].tagName +
           " element is focused by the " + testingList[testingIndex].methodName +
           " (Test1: content can steal focus)");
     callback = doTest2;
     loadTestPage(true);
   }
   function doTest2() {
     if (canRetry-- > 0 && !isPrepared()) {
       setTimeout(callback, 10); // retry
       return;
     }
     // The contents shouldn't be able to steal the focus from chrome.
     // in foreground tab
     let e = tabs[0].linkedBrowser.contentDocument.activeElement;
     is(e.tagName, testingList[testingIndex].tagName,
        "the foreground tab's " + testingList[testingIndex].tagName +
        " element is not active by the " + testingList[testingIndex].methodName +
        " (Test2: content can NOT steal focus)");
     isnot(fm.focusedElement, e,
           "the " + testingList[testingIndex].tagName +
           " element is focused by the " + testingList[testingIndex].methodName +
           " (Test2: content can NOT steal focus)");
     // in background tab
     e = tabs[1].linkedBrowser.contentDocument.activeElement;
     is(e.tagName, testingList[testingIndex].tagName,
        "the background tab's " + testingList[testingIndex].tagName +
        " element is not active by the " + testingList[testingIndex].methodName +
        " (Test2: content can NOT steal focus)");
     isnot(fm.focusedElement, e,
           "the " + testingList[testingIndex].tagName +
           " element is focused by the " + testingList[testingIndex].methodName +
           " (Test2: content can NOT steal focus)");
     runNextTest();
   }
   runNextTest();
 }