| <!DOCTYPE html> |
| <html> |
| <head> |
| <title id='desc'> MouseEvent: mousedown - preventDefault() for text selection </title> |
| <script type="text/javascript"> |
| var PassTest = function() |
| { |
| document.getElementById("testresult").firstChild.data = "PASS"; |
| } |
| |
| var FailTest = function() |
| { |
| document.getElementById("testresult").firstChild.data = "FAIL"; |
| } |
| |
| var EVENT1 = "mousedown"; |
| var EVENT2 = "mouseup"; |
| var TARGET; |
| var DisableSelection = false; |
| var DefaultPrevented = false; |
| var BEFORE = 0; |
| var AFTER = 0; |
| |
| function DisableTextSelection() |
| { |
| DisableSelection = true; |
| } |
| |
| function TestEvent(evt) |
| { |
| if ((true == DisableSelection) && (EVENT1 == evt.type)) |
| { |
| evt.preventDefault(); |
| DefaultPrevented = true; |
| BEFORE = evt.clientX; |
| } |
| if ((true == DisableSelection) && (EVENT2 == evt.type)) |
| { |
| AFTER = evt.clientX; |
| } |
| } |
| |
| function VerifyResult() |
| { |
| var distance = Math.abs(AFTER - BEFORE); |
| |
| if ((true == DefaultPrevented) && (10 < distance) && ("" == window.getSelection())) |
| { |
| PassTest() |
| } |
| else |
| { |
| FailTest(); |
| } |
| } |
| |
| window.onload = function() |
| { |
| try |
| { |
| TARGET = document.getElementById("target"); |
| TARGET.addEventListener(EVENT1, TestEvent, false); |
| TARGET.addEventListener(EVENT2, TestEvent, false); |
| } |
| catch(ex) |
| { |
| FailTest(); |
| } |
| } |
| </script> |
| </head> |
| <body> |
| <h3>DOM Events</h3> |
| <h4> |
| Test Description: MouseEvent - Text selection is disabled after cancelling mousedown event. |
| </h4> |
| |
| <span id="target" style="border:1px solid green; color:blue"> Use mouse to select the whole line here </span> |
| |
| <p id="manualsteps"> |
| Steps: |
| <ol> |
| <li> Make sure text in the above green box can be selected using mouse |
| <li> Dismiss the selection, if any, by clicking at the green box with mouse |
| <li> Now, click the button: <button onclick="DisableTextSelection()">Disable Selection</button> |
| <li> Drag mouse to select the whole line of the text inside the above green box |
| <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> |
