third_party/WebKit/LayoutTests/fast/dom/custom/testutils.js

   1 (function () {
   2
   3 function isParentFrame() {
   4     return window.parent === window;
   5 }
   6
   7 var childDoneMessage = 'PASS child done';
   8
   9 fork = function () {
  10     if (isParentFrame()) {
  11         window.addEventListener('message', function (event) {
  12             debug(event.data);
  13             if (event.data == childDoneMessage)
  14                 finishJSTest();
  15         });
  16
  17         var iframe = document.createElement('iframe');
  18         iframe.src = window.location;
  19         document.body.appendChild(iframe);
  20         iframe = null;
  21     }
  22
  23     return isParentFrame();
  24 };
  25
  26 if (!isParentFrame()) {
  27     var parent = window.parent;
  28     log = function (msg) {
  29         parent.postMessage(msg, '*');
  30     };
  31
  32     done = function () {
  33         log(childDoneMessage);
  34     };
  35
  36     destroyContext = function () {
  37         // This function can be called more than once so we need to check whether the iframe exists.
  38         var frame = parent.document.querySelector('iframe');
  39         if (frame) {
  40             frame.remove();
  41             log('PASS destroyed context');
  42         }
  43     };
  44 }
  45
  46 withFrame = function (f) {
  47     var frame = document.createElement('iframe');
  48     frame.onload = function () {
  49         try {
  50             f(frame);
  51         } catch (e) {
  52             testFailed(e);
  53         }
  54     };
  55     frame.src = 'about:blank';
  56     document.body.appendChild(frame);
  57 };
  58
  59 })();