third_party/WebKit/LayoutTests/fast/events/mousedown-inside-dragstart-should-not-cause-crash.html

   1 <!DOCTYPE html>
   2 <html>
   3 <body>
   4 <p id="description">
   5 This tests pressing a mouse button down inside a dragstart event.<br>
   6 This happens when a user sets a breakpoint of a dragstart event handler in Inspector,
   7 and clicks somewhere on the page while the script is paused at the breakpoint. WebKit should not crash.
   8 </p>
   9 <div id="container"><span id="target" draggable="true" ondragstart="onDragStart()">drag me</span></div>
  10 <script>
  11
  12 if (!window.testRunner || !window.eventSender)
  13     document.body.innerHTML = 'This test requires eventSender';
  14 else {
  15     testRunner.dumpAsText();
  16
  17     var target = document.getElementById('target');
  18     var called = false;
  19
  20     function onDragStart() {
  21         called = true;
  22         eventSender.mouseUp();
  23         eventSender.mouseDown();
  24     }
  25
  26     eventSender.mouseMoveTo(target.offsetLeft + target.offsetWidth / 2, target.offsetTop + target.offsetHeight / 2);
  27     eventSender.mouseDown();
  28     eventSender.leapForward(100);
  29     eventSender.mouseMoveTo(500, 500);
  30     eventSender.mouseUp();
  31
  32     document.getElementById('container').textContent = called ? 'PASS - mouse up and down inside a dragstart did not crash WebKit'
  33         : 'FAIL - dragstart was never fired.';
  34 }
  35
  36 </script>
  37 </body>
  38 </html>