third_party/WebKit/LayoutTests/fast/dom/Window/script-tests/dispatchEvent.js

   1 description("Test window.dispatchEvent().");
   2
   3 // Test that non-events throw
   4 var event = {};
   5 shouldThrow("window.dispatchEvent(event)");
   6
   7 // Test that non-initialized events throw
   8 event = document.createEvent("Event");
   9 shouldThrow("window.dispatchEvent(event)");
  10
  11 // Test basic dispatch
  12 var myEventDispatched = false;
  13 var target;
  14 var currentTarget;
  15 window.addEventListener("myEvent", function(evt) {
  16     myEventDispatched = true;
  17     target = evt.target;
  18     currentTarget = evt.currentTarget;
  19 }, false);
  20 event = document.createEvent("Event");
  21 event.initEvent("myEvent", false, false);
  22 window.dispatchEvent(event);
  23 shouldBeTrue("myEventDispatched");
  24 shouldBe("target", "window");
  25 shouldBe("currentTarget", "window");
  26
  27 // Test that both useCapture and non-useCapture listeners are dispatched to
  28 var useCaptureDispatched = false;
  29 window.addEventListener("myEvent", function(evt) {
  30     useCaptureDispatched = true;
  31 }, true);
  32 var nonUseCaptureDispatched = false;
  33 window.addEventListener("myEvent", function(evt) {
  34     nonUseCaptureDispatched = true;
  35 }, false);
  36 event = document.createEvent("Event");
  37 event.initEvent("myEvent", false, false);
  38 window.dispatchEvent(event);
  39 shouldBeTrue("useCaptureDispatched");
  40 shouldBeTrue("nonUseCaptureDispatched");