<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css" type="text/css"?>
<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
        xmlns:html="http://www.w3.org/1999/xhtml"
        title="Test for nsSelectionMoveCommands">
  <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

<script class="testbody" type="application/javascript">
<![CDATA[

function runTest() {
  var tests = execTests();
  function execNext() {
    try {
      tests.next();
      setTimeout(execNext, 0);
    } catch (e) {}
  }
  execNext();
}

function execTests() {
  var e = document.getElementById("edit");
  var doc = e.contentDocument;
  var win = e.contentWindow;
  var root = doc.documentElement;
  var body = doc.body;

  body.style.fontSize='16px';
  body.style.lineHeight='16px';
  body.style.height='400px';
  body.style.padding='0px';
  body.style.margin='0px';
  body.style.borderSize='0px';

  var sel = win.getSelection();
  doc.designMode='on';
  body.innerHTML = "1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>10<br>11<br>12<br>";
  win.focus();

  function doCommand(cmd) {
    var controller = document.commandDispatcher.getControllerForCommand(cmd);
    if (controller) {
      controller.doCommand(cmd);
    }
  }

  function testScrollCommand(cmd, expectTop) {
    is(root.getBoundingClientRect().top, -expectTop, cmd);
  }

  function testMoveCommand(cmd, expectNode, expectOffset) {
    doCommand(cmd);
    is(sel.isCollapsed, true, "collapsed after " + cmd);
    is(sel.anchorNode, expectNode, "node after " + cmd);
    is(sel.anchorOffset, expectOffset, "offset after " + cmd);
  }

  function findChildNum(e, child) {
    var i = 0;
    var n = e.firstChild;
    while (n && n != child) {
      n = n.nextSibling;
      ++i;
    }
    if (!n)
      return -1;
    return i;
  }

  function testPageMoveCommand(cmd, expectOffset) {
    doCommand(cmd);
    is(sel.isCollapsed, true, "collapsed after " + cmd);
    is(sel.anchorOffset, expectOffset, "offset after " + cmd);
    return findChildNum(body, sel.anchorNode);
  }

  function testSelectCommand(cmd, expectNode, expectOffset) {
    var anchorNode = sel.anchorNode;
    var anchorOffset = sel.anchorOffset;
    doCommand(cmd);
    is(sel.isCollapsed, false, "not collapsed after " + cmd);
    is(sel.anchorNode, anchorNode, "anchor not moved after " + cmd);
    is(sel.anchorOffset, anchorOffset, "anchor not moved after " + cmd);
    is(sel.focusNode, expectNode, "node after " + cmd);
    is(sel.focusOffset, expectOffset, "offset after " + cmd);
  }

  function testPageSelectCommand(cmd, expectOffset) {
    var anchorNode = sel.anchorNode;
    var anchorOffset = sel.anchorOffset;
    doCommand(cmd);
    is(sel.isCollapsed, false, "not collapsed after " + cmd);
    is(sel.anchorNode, anchorNode, "anchor not moved after " + cmd);
    is(sel.anchorOffset, anchorOffset, "anchor not moved after " + cmd);
    is(sel.focusOffset, expectOffset, "offset after " + cmd);
    return findChildNum(body, sel.focusNode);
  }

  function node(i) {
    var n = body.firstChild;
    while (i > 0) {
      n = n.nextSibling;
      --i;
    }
    return n;
  }

  doCommand("cmd_scrollBottom");
  testScrollCommand("cmd_scrollBottom", root.scrollHeight - 100);
  doCommand("cmd_scrollTop");
  testScrollCommand("cmd_scrollTop", 0);

  doCommand("cmd_scrollPageDown");
  yield;
  var pageHeight = -root.getBoundingClientRect().top;
  ok(pageHeight > 0, "cmd_scrollPageDown works");
  ok(pageHeight <= 100, "cmd_scrollPageDown doesn't scroll too much");
  doCommand("cmd_scrollBottom");
  doCommand("cmd_scrollPageUp");
  yield;
  testScrollCommand("cmd_scrollPageUp", root.scrollHeight - 100 - pageHeight);

  doCommand("cmd_scrollTop");
  doCommand("cmd_scrollLineDown");
  yield;
  var lineHeight = -root.getBoundingClientRect().top;
  ok(lineHeight > 0, "Can scroll by lines");
  doCommand("cmd_scrollBottom");
  doCommand("cmd_scrollLineUp");
  yield;
  testScrollCommand("cmd_scrollLineUp", root.scrollHeight - 100 - lineHeight);

  var runSelectionTests = function(selectWordNextNode, selectWordNextOffset) {
    testMoveCommand("cmd_moveBottom", body, 23);
    testMoveCommand("cmd_moveTop", node(0), 0);
    testSelectCommand("cmd_selectBottom", body, 23);
    doCommand("cmd_moveBottom");
    testSelectCommand("cmd_selectTop", node(0), 0);

    doCommand("cmd_moveTop");
    testMoveCommand("cmd_lineNext", node(2), 0);
    testMoveCommand("cmd_linePrevious", node(0), 0);
    testSelectCommand("cmd_selectLineNext", node(2), 0);
    doCommand("cmd_moveBottom");
    testSelectCommand("cmd_selectLinePrevious", node(20), 2);

    doCommand("cmd_moveBottom");
    testMoveCommand("cmd_charPrevious", node(22), 1);
    testMoveCommand("cmd_charNext", node(22), 2);
    testSelectCommand("cmd_selectCharPrevious", node(22), 1);
    doCommand("cmd_moveTop");
    testSelectCommand("cmd_selectCharNext", node(0), 1);

    doCommand("cmd_moveTop");
    testMoveCommand("cmd_endLine", body, 1);
    testMoveCommand("cmd_beginLine", node(0), 0);
    testSelectCommand("cmd_selectEndLine", body, 1);
    doCommand("cmd_moveBottom");
    testSelectCommand("cmd_selectBeginLine", node(22), 0);

    doCommand("cmd_moveBottom");
    testMoveCommand("cmd_wordPrevious", node(22), 0);
    testMoveCommand("cmd_wordNext", body, 23);
    testSelectCommand("cmd_selectWordPrevious", node(22), 0);
    doCommand("cmd_moveTop");
    testSelectCommand("cmd_selectWordNext", selectWordNextNode, selectWordNextOffset);

    doCommand("cmd_moveTop");
    var lineNum = testPageMoveCommand("cmd_movePageDown", 0);
    ok(lineNum > 0, "cmd_movePageDown works");
    doCommand("cmd_moveBottom");
    doCommand("cmd_beginLine");
    is(testPageMoveCommand("cmd_movePageUp", 0), 22 - lineNum, "cmd_movePageUp");

    doCommand("cmd_moveTop");
    is(testPageSelectCommand("cmd_selectPageDown", 0), lineNum, "cmd_selectPageDown");
    doCommand("cmd_moveBottom");
    doCommand("cmd_beginLine");
    is(testPageSelectCommand("cmd_selectPageUp", 0), 22 - lineNum, "cmd_selectPageUp");
  }

  var prefs = Components.classes["@mozilla.org/preferences-service;1"]
                          .getService(Components.interfaces.nsIPrefBranch);
  var origPrefValue = prefs.getBoolPref("layout.word_select.eat_space_to_next_word");
  try {
    prefs.setBoolPref("layout.word_select.eat_space_to_next_word", false);
    runSelectionTests(body, 1);
    prefs.setBoolPref("layout.word_select.eat_space_to_next_word", true);
    runSelectionTests(node(2), 0);
  } finally {
    prefs.setBoolPref("layout.word_select.eat_space_to_next_word", origPrefValue);
  }

  SimpleTest.finish();
}

SimpleTest.waitForExplicitFinish();
addLoadEvent(runTest);
]]>
</script>

<body  id="html_body" xmlns="http://www.w3.org/1999/xhtml">
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=372685">Mozilla Bug 372685</a>
<p id="display"></p>

<pre id="test">
</pre>
<iframe id="edit" width="200" height="100" src="about:blank"/>
</body>
</window>
