| <!DOCTYPE html> |
| <html> |
| <head> |
| <title id='desc'> WheelEvent: wheel - MouseEvent.ctrlKey and Zooming </title> |
| <script type="text/javascript"> |
| var PassTest = function() |
| { |
| document.getElementById("testresult").firstChild.data = "PASS"; |
| } |
| |
| var FailTest = function() |
| { |
| document.getElementById("testresult").firstChild.data = "FAIL"; |
| } |
| |
| function DisableZooming() |
| { |
| BEFORE = HELPER.getBoundingClientRect().width; |
| DisableZoom = true; |
| } |
| |
| function VerifyResult() |
| { |
| AFTER = HELPER.getBoundingClientRect().width; |
| |
| if ((true == DisableZoom) && (true == TestResult) && (BEFORE == AFTER)) |
| { |
| PassTest(); |
| } |
| else |
| { |
| FailTest(); |
| } |
| } |
| |
| function TestEvent(evt) |
| { |
| if ((true == DisableZoom) && (true == evt.ctrlKey) && (EVENT == evt.type)) |
| { |
| evt.preventDefault(); |
| TestResult = evt.defaultPrevented; |
| } |
| } |
| |
| var EVENT = "wheel"; |
| var TARGET; |
| var HELPER; |
| var BEFORE; |
| var AFTER; |
| var DisableZoom = false; |
| var TestResult = false; |
| |
| window.onload = function() |
| { |
| try |
| { |
| TARGET = document; |
| HELPER = document.getElementById("helper"); |
| TARGET.addEventListener(EVENT, TestEvent, true); |
| } |
| catch(ex) |
| { |
| FailTest(); |
| } |
| } |
| </script> |
| </head> |
| <body> |
| <h3>DOM Events</h3> |
| <h4> |
| Test Description: The typical default action of the wheel event type, in some cases, is to |
| zoom the document. If this event is canceled, the implementation must not zoom the document. |
| </h4> |
| |
| <div id="helper" style="width:100%"></div> |
| |
| <p id="manualsteps"> |
| Steps: |
| <ol> |
| <li> Note: an input device with scroll wheel support (e.g., mouse wheel) is required |
| <li> Make sure the page can be zoomed in/out by holding down '{CTRL}' key + scrolling the mouse wheel on the page |
| <li> Now, click the button: <button id="verify" onclick="DisableZooming()">Disable Zooming</button> |
| <li> Press and hold down '{CTRL}' key on the keyboard |
| <li> Move the mouse pointer to the center of the page |
| <li> Scroll down/up the mouse wheel some units |
| <li> Click the button: <button id="verify" onclick="VerifyResult()">VerifyResult</button> |
| </ol> |
| </p> |
| <p>Test passes if the word "PASS" appears below after following the above steps.</p> |
| <div>Test result: </div> |
| <div id='testresult'>FAIL</div> |
| </body> |
| </html> |
