gecko/toolkit/content/tests/widgets/test_mousecapture.xul

<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
<?xml-stylesheet href="/tests/SimpleTest/test.css" type="text/css"?>

<window title="Mouse Capture Tests" align="start"
        onload="setTimeout(runTests, 0);"
        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

<script type="application/javascript" src="/MochiKit/packed.js"></script>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"></script>

<script>
<![CDATA[

SimpleTest.waitForExplicitFinish();

var captureRetargetMode = false;
var cachedMouseDown = null;
var previousWidth = 0, originalWidth = 0;

function splitterCallback(adjustment)
{
  var newWidth = Number($("leftbox").width); // getBoundingClientRect().width;
  var expectedWidth = previousWidth + adjustment;
  if (expectedWidth > $("splitterbox").getBoundingClientRect().width)
    expectedWidth = $("splitterbox").getBoundingClientRect().width - $("splitter").getBoundingClientRect().width;
  is(newWidth, expectedWidth, "splitter left box size (" + adjustment + ")");
  previousWidth = newWidth;
}

function selectionCallback(adjustment)
{
  if (adjustment == 4000) {
    is(frames[0].getSelection().toString(), "This is some text", "selection after drag (" + adjustment + ")");
    ok(frames[0].scrollY > 40, "selection caused scroll down (" + adjustment + ")");
  }
  else {
    if (adjustment == 0) {
      is(frames[0].getSelection().toString(), ".", "selection after drag (" + adjustment + ")");
    }
    is(frames[0].scrollY, 0, "selection scrollY (" + adjustment + ")");
  }
}

function framesetCallback(adjustment)
{
  var newWidth = frames[1].frames[0].document.documentElement.clientWidth;
  var expectedWidth = originalWidth + adjustment;
  if (adjustment == 0)
    expectedWidth = originalWidth - 12;
  else if (expectedWidth >= 4000)
    expectedWidth = originalWidth * 2 - 2;

  is(newWidth, expectedWidth, "frameset after drag (" + adjustment + ")");
}

function runTests()
{
  previousWidth = $("leftbox").getBoundingClientRect().width;
  runCaptureTest($("splitter"), splitterCallback);

  var custom = document.getElementById("custom");
  runCaptureTest(custom);

  synthesizeMouseExpectEvent($("rightbox"), 2, 2, { type: "mousemove" },
                             $("rightbox"), "mousemove", "setCapture and releaseCapture");

  custom.setCapture();
  synthesizeMouseExpectEvent($("leftbox"), 2, 2, { type: "mousemove" },
                             $("leftbox"), "mousemove", "setCapture fails on non mousedown");

  var custom2 = document.getElementById("custom2");
  synthesizeMouse(custom2, 2, 2, { type: "mousedown" });
  synthesizeMouseExpectEvent($("leftbox"), 2, 2, { type: "mousemove" },
                             $("leftbox"), "mousemove", "document.releaseCapture releases capture");

  var custom3 = document.getElementById("custom3");
  synthesizeMouse(custom3, 2, 2, { type: "mousedown" });
  synthesizeMouseExpectEvent($("leftbox"), 2, 2, { type: "mousemove" },
                             $("leftbox"), "mousemove", "element.releaseCapture releases capture");

  var custom4 = document.getElementById("custom4");
  synthesizeMouse(custom4, 2, 2, { type: "mousedown" });
  synthesizeMouseExpectEvent($("leftbox"), 2, 2, { type: "mousemove" },
                             custom4, "mousemove", "element.releaseCapture during mousemove before releaseCapture");
  synthesizeMouseExpectEvent($("leftbox"), 2, 2, { type: "mousemove" },
                             $("leftbox"), "mousemove", "element.releaseCapture during mousemove after releaseCapture");

  var custom5 = document.getElementById("custom5");
  runCaptureTest(custom5);
  captureRetargetMode = true;
  runCaptureTest(custom5);
  captureRetargetMode = false;

  var b = frames[0].document.getElementById("b");
  runCaptureTest(b, selectionCallback);

  previousWidth = frames[1].frames[0].document.documentElement.clientWidth;
  originalWidth = previousWidth;
  runCaptureTest(frames[1].document.documentElement.lastChild, framesetCallback);

  SimpleTest.finish();
}

function runCaptureTest(element, callback)
{
  var expectedTarget = null;

  var win = element.ownerDocument.defaultView;

  function mouseMoved(event) {
    is(event.originalTarget, expectedTarget,
       expectedTarget.id + " target for point " + event.clientX + "," + event.clientY);
  }
  win.addEventListener("mousemove", mouseMoved, false);

  expectedTarget = element;

  var basepoint = element.localName == "frameset" ? 50 : 2;
  synthesizeMouse(element, basepoint, basepoint, { type: "mousedown" }, win);

  // in setCapture(true) mode, all events should fire on custom5. In
  // setCapture(false) mode, events can fire at a descendant
  if (expectedTarget == $("custom5") && !captureRetargetMode)
    expectedTarget = $("custom5spacer");

  // releaseCapture should do nothing for an element which isn't capturing
  $("splitterbox").releaseCapture();

  synthesizeMouse(element, basepoint + 2, basepoint + 2, { type: "mousemove" }, win);
  if (callback)
    callback(2);

  if (expectedTarget == $("custom5spacer") && !captureRetargetMode)
    expectedTarget = $("custom5inner");

  synthesizeMouse(element, basepoint + 25, basepoint + 25, { type: "mousemove" }, win);
  if (callback)
    callback(25);

  expectedTarget = element.localName == "b" ? win.document.documentElement : element;
  synthesizeMouse(element, basepoint + 4000, basepoint + 4000, { type: "mousemove" }, win);
  if (callback)
    callback(4000);
  synthesizeMouse(element, basepoint - 12, basepoint - 12, { type: "mousemove" }, win);
  if (callback)
    callback(-12);

  expectedTarget = element.localName == "frameset" ? element : win.document.documentElement;
  synthesizeMouse(element, basepoint + 30, basepoint + 30, { type: "mouseup" }, win);
  synthesizeMouse(win.document.documentElement, 2, 2, { type: "mousemove" }, win);
  if (callback)
    callback(0);

  win.removeEventListener("mousemove", mouseMoved, false);
}

]]>
</script>

<hbox id="splitterbox" style="margin-top: 5px;" onmousedown="this.setCapture()">
  <hbox id="leftbox" width="100" flex="1"/>
  <splitter id="splitter" height="5"/>
  <hbox id="rightbox" width="100" flex="1"/>
</hbox>

<vbox id="custom" width="10" height="10" onmousedown="this.setCapture(); cachedMouseDown = event;"/>
<vbox id="custom2" width="10" height="10" onmousedown="this.setCapture(); document.releaseCapture();"/>
<vbox id="custom3" width="10" height="10" onmousedown="this.setCapture(); this.releaseCapture();"/>
<vbox id="custom4" width="10" height="10" onmousedown="this.setCapture();"
                                          onmousemove="this.releaseCapture();"/>
<hbox id="custom5" width="40" height="40"
      onmousedown="this.setCapture(captureRetargetMode);">
  <spacer id="custom5spacer" width="5"/>
  <hbox id="custom5inner" width="35" height="35"/>
</hbox>

<hbox>
  <iframe width="100" height="100"
          src="data:text/html,%3Cbody style%3D'font-size%3A 40pt%3B'%3E.%3Cb id%3D'b'%3EThis%3C/b%3E is some text%3C/body%3E"/>

  <iframe width="100" height="100"
          src="data:text/html,%3Cframeset cols='50%, 50%'%3E%3Cframe src='about:blank'%3E%3Cframe src='about:blank'%3E%3C/frameset%3E"/>
</hbox>

<body xmlns="http://www.w3.org/1999/xhtml">
  <p id="display"/><div id="content" style="display: none"/><pre id="test"/>
</body>

</window>