| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../resources/js-test.js"></script> |
| </head> |
| <body> |
| <p class="description"> |
| Tests that dispatchEvent raises DISPATCH_REQUEST_ERR if the event |
| being dispatched is already being dispatched. |
| </p> |
| <pre id="console"> |
| </pre> |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| jsTestIsAsync = true; |
| |
| function shouldBeDispatchRequestErr(exception) { |
| var ok = Object.getPrototypeOf(exception) == DOMException.prototype && exception.name == 'InvalidStateError'; |
| (ok ? testPassed : testFailed)("should have got DISPATCH_REQUEST_ERR EventException"); |
| } |
| |
| // try redispatching an event in the process of being dispatched with |
| // dispatchEvent |
| |
| function redispatchCustom(event) { |
| try { |
| window.dispatchEvent(event); |
| testFailed('dispatchEvent of an event being dispatched should throw an exception'); |
| } catch (ex) { |
| shouldBeDispatchRequestErr(ex); |
| } |
| |
| redispatchCustom.wasInvoked = true; |
| } |
| |
| var customEvent = document.createEvent('CustomEvent'); |
| customEvent.initCustomEvent('foo', true, true, null); |
| var p = document.querySelector('.description'); |
| p.addEventListener('foo', redispatchCustom); |
| p.dispatchEvent(customEvent); |
| shouldBeTrue('redispatchCustom.wasInvoked'); |
| |
| // try redispatching an event that has already finished being dispatched |
| |
| function checkCustom(event) { |
| checkCustom.wasInvoked = true; |
| } |
| |
| p.removeEventListener('foo', redispatchCustom, true); |
| p.addEventListener('foo', checkCustom, true); |
| p.dispatchEvent(customEvent); |
| shouldBeTrue('checkCustom.wasInvoked'); |
| |
| // try redispatching an event in the process of being dispatched by |
| // the browser |
| |
| function redispatchLoad(event) { |
| if (redispatchLoad.dispatching) { |
| testFailed('dispatchEvent of an event being dispatched should not dispatch the event again'); |
| return; |
| } |
| |
| try { |
| redispatchLoad.dispatching = true; |
| document.dispatchEvent(event); |
| testFailed('dispatchEvent of an event being dispatched should throw an exception'); |
| } catch (ex) { |
| shouldBeDispatchRequestErr(ex); |
| } finally { |
| delete redispatchLoad.dispatching; |
| } |
| |
| finishJSTest(); |
| } |
| |
| window.addEventListener('load', redispatchLoad, true); |
| </script> |
| </body> |
| </html> |
