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gecko/layout/generic/test/test_backspace_delete.xul

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<?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 BackSpace/Delete Keys">
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<script class="testbody" type="application/javascript">
<![CDATA[
function execTests() {
var e = document.getElementById("edit");
var doc = e.contentDocument;
var win = e.contentWindow;
var root = doc.documentElement;
var editor = doc.body;
var sel = win.getSelection();
win.focus();
function setupTest(html, firstChildOffsetForCaret, node) {
// Work around bug 474255 --- we need to have nonempty content before we turn on
// editing, or the tests below break because the editor doesn't notice when we
// insert non-empty content using innerHTML.
doc.designMode = 'off';
editor.innerHTML = html;
doc.designMode = 'on';
var n = editor.firstChild;
if (node) {
n = node();
}
sel.collapse(n, firstChildOffsetForCaret);
}
/* On Unix systems we have to check for a bug in Pango's handling of Thai
* script (bug 474068 and http://bugzilla.gnome.org/show_bug.cgi?id=576156 ).
* We assume that ctypes is available, and the library can be accessed as
* libpango-1.0.so.0, on all systems that potentially have this problem.
*/
var pango_todos = false;
try {
Components.utils.import("resource://gre/modules/ctypes.jsm");
if (ctypes) {
let pango = ctypes.open("libpango-1.0.so.0");
if (pango) {
// int pango_version();
let pango_version = pango.declare("pango_version", ctypes.default_abi,
ctypes.int);
if (pango_version) {
let version = pango_version();
// The bug was introduced in pango 1.22.0 and has not yet been fixed.
// version == major*10000 + minor*100 + micro, therefore:
if (version >= 12200) {
pango_todos = true;
todo(false, "warning: buggy version of Pango detected");
}
}
}
}
} catch (ex) {
}
// Select |is| or |todo_is| according to whether the current subtest
// is affected by the above-mentioned Pango bug. The logic for the
// decision is: If |pango_todos| is not true, the bug is not expected
// to occur. If |alternate| is either undefined or equal to |expected|,
// then the subtest should not be affected by the bug. If |value| is
// equal to *neither* |expected| nor |alternate| then there is a
// different problem than the known Pango bug. In all those cases
// we want to use regular |is|.
//
// But if |pango_todos| is true, |alternate| is defined and not equal
// to |expected|, and |value| is equal to one of them, then we want to
// use |todo_is| *regardless* of which possibility |value| is equal to.
// If |value| is equal to |alternate|, this is the bug's syndrome and
// we obviously want a |todo_is|; if |value| is equal to |expected|,
// the check for the buggy library is wrong (hopefully, because the
// bug has been fixed in a new Pango version) and we want to get a
// failure so we notice.
function pango_todo_is(value, expected, alternate, msg) {
if (pango_todos && alternate !== undefined && alternate !== expected &&
(value === expected || value === alternate))
todo_is(value, expected, msg);
else
is(value, expected, msg);
}
var eatSpace;
function getPrefs() {
const prefSvcContractID = "@mozilla.org/preferences-service;1";
const prefSvcIID = Components.interfaces.nsIPrefService;
return Components.classes[prefSvcContractID].getService(prefSvcIID)
.getBranch("layout.word_select.");
}
function setEatSpace(newValue) {
getPrefs().setBoolPref("eat_space_to_next_word", newValue);
eatSpace = newValue;
}
function restoreEatSpace() {
try {
getPrefs().clearUserPref("eat_space_to_next_word");
} catch(ex) {}
}
/* The various _todo arguments below are honored only if pango_todos is true. */
function doCommand(cmd, exc_todo) {
if (!pango_todos) exc_todo = false;
var controller = document.commandDispatcher.getControllerForCommand(cmd);
if (controller) {
try {
controller.doCommand(cmd);
(exc_todo ? todo : ok)
(true, 'doCommand(' + cmd + ') succeeded');
} catch(ex) {
(exc_todo ? todo : ok)
(false, 'exception in doCommand(' + cmd + '): ', ex.message);
}
}
}
function testRight(node, offset, offset_todo) {
doCommand("cmd_charNext");
var msg = "Right movement broken in \"" + editor.innerHTML + "\", offset " + offset;
is(sel.anchorNode, node, msg);
pango_todo_is(sel.anchorOffset, offset, offset_todo, msg);
}
function selErrString(dir) {
return dir + " selection broken with eatSpace=" + eatSpace + " in \"" + editor.innerHTML + "\"";
}
function testWordSelRight(startNode, startOffset, endNode, endOffset) {
doCommand("cmd_selectWordNext");
var selRange = sel.getRangeAt(0);
is(selRange.startContainer, startNode, selErrString("Word right"));
is(selRange.startOffset, startOffset, selErrString("Word right"));
is(selRange.endContainer, endNode, selErrString("Word right"));
is(selRange.endOffset, endOffset, selErrString("Word right"));
}
function testDelete(node, offset, text, richtext, offset_todo, text_todo, exc_todo) {
doCommand("cmd_deleteCharForward", exc_todo);
var msg = "Delete broken in \"" + editor.innerHTML + "\", offset " + offset;
if(typeof node == 'function'){
node = node();
}
is(sel.anchorNode, node, msg);
pango_todo_is(sel.anchorOffset, offset, offset_todo, msg);
let text_result = richtext ? editor.innerHTML : editor.textContent;
pango_todo_is(text_result, text, text_todo, msg);
}
function testBackspace(node, offset, text, offset_todo, text_todo) {
doCommand("cmd_deleteCharBackward");
var msg = "Backspace broken in \"" + editor.innerHTML + "\", offset " + offset;
is(sel.anchorNode, node, msg);
pango_todo_is(sel.anchorOffset, offset, offset_todo, msg);
pango_todo_is(editor.textContent, text, text_todo, msg);
}
function testDeletePrevWord(node, offset, text) {
doCommand("cmd_deleteWordBackward");
var msg = "Delete previous word broken in \"" + editor.innerHTML + "\", offset " + offset;
is(sel.anchorNode, node, msg);
is(sel.anchorOffset, offset, msg);
is(editor.textContent, text, msg);
}
function testDeleteNextWord(node, offset, text) {
doCommand("cmd_deleteWordForward");
var msg = "Delete next word broken in \"" + editor.innerHTML + "\", offset " + offset;
is(sel.anchorNode, node, msg);
is(sel.anchorOffset, offset, msg);
todo_is(editor.textContent, text, msg);
}
// Test cell-wise deletion of Delete
setupTest("สวัสดีพ่อแม่พี่น้อง", 0);
testRight(editor.firstChild, 1);
testDelete(editor.firstChild, 1, "สสดีพ่อแม่พี่น้อง");
testRight(editor.firstChild, 2);
testDelete(editor.firstChild, 2, "สสพ่อแม่พี่น้อง");
testRight(editor.firstChild, 4);
testDelete(editor.firstChild, 4, "สสพ่แม่พี่น้อง");
testRight(editor.firstChild, 5, 7);
testDelete(editor.firstChild, 5, "สสพ่แพี่น้อง", false, 7, "สสพ่แม่น้อง");
testRight(editor.firstChild, 8, 9);
testDelete(editor.firstChild, 8, "สสพ่แพี่อง", false, 9, "สสพ่แม่น้ง");
testRight(editor.firstChild, 9, 10);
testDelete(editor.firstChild, 9, "สสพ่แพี่อ", false, 10, "สสพ่แม่น้ง", true);
// Test character-wise deletion of Backspace
setupTest("สวัสดีพ่อแม่พี่น้อง", 0);
testRight(editor.firstChild, 1);
testBackspace(editor.firstChild, 0, "วัสดีพ่อแม่พี่น้อง");
testRight(editor.firstChild, 2);
testBackspace(editor.firstChild, 1, "วสดีพ่อแม่พี่น้อง");
testRight(editor.firstChild, 2);
testBackspace(editor.firstChild, 1, "วดีพ่อแม่พี่น้อง");
testRight(editor.firstChild, 3);
testBackspace(editor.firstChild, 2, "วดพ่อแม่พี่น้อง");
testRight(editor.firstChild, 4);
testBackspace(editor.firstChild, 3, "วดพอแม่พี่น้อง");
testRight(editor.firstChild, 4);
testBackspace(editor.firstChild, 3, "วดพแม่พี่น้อง");
testRight(editor.firstChild, 4, 6);
testBackspace(editor.firstChild, 3, "วดพม่พี่น้อง", 5, "วดพแมพี่น้อง");
testRight(editor.firstChild, 5, 8);
testBackspace(editor.firstChild, 4, "วดพมพี่น้อง", 7, "วดพแมพีน้อง");
testRight(editor.firstChild, 7, 9);
testBackspace(editor.firstChild, 6, "วดพมพีน้อง", 8, "วดพแมพีนอง");
testRight(editor.firstChild, 8, 9);
testBackspace(editor.firstChild, 7, "วดพมพีนอง", 8, "วดพแมพีนง");
testRight(editor.firstChild, 8, 9);
testBackspace(editor.firstChild, 7, "วดพมพีนง", 8, "วดพแมพีน");
testRight(editor.firstChild, 8, 8);
testBackspace(editor.firstChild, 7, "วดพมพีน", 7, "วดพแมพี");
// Tests for Bug 417745
setEatSpace(true);
setupTest("Quick yellow fox", 0);
testWordSelRight(editor.firstChild, 0, editor.firstChild, 6);
testDelete(editor.firstChild, 0, "yellow fox");
testWordSelRight(editor.firstChild, 0, editor.firstChild, 7);
testDelete(editor.firstChild, 0, "fox");
setEatSpace(false);
setupTest("Quick yellow fox", 0);
testWordSelRight(editor.firstChild, 0, editor.firstChild, 5);
// editor converts the leading space to an &nbsp;, otherwise it
// wouldn't show up which would confuse users
testDelete(editor.firstChild, 0, "\u00A0yellow fox");
testWordSelRight(editor.firstChild, 0, editor.firstChild, 7);
testDelete(editor.firstChild, 0, "\u00A0fox");
testWordSelRight(editor.firstChild, 0, editor.firstChild, 4);
testDelete(editor, 0, "");
restoreEatSpace();
// Tests for Bug 419217
setupTest("foo<div>bar</div>", 3);
testDelete(function(){return editor.firstChild;}, 3, "foobar", true);
// Tests for Bug 419406
var s = "helloשלום";
setupTest(s, 4);
testRight(editor.firstChild, 5);
testDelete(editor.firstChild, 5, "helloשלום");
// Tests for Bug 462188
setupTest("You should not see this text.", 29);
testDeletePrevWord(editor.firstChild, 24, "You should not see this ");
testDeletePrevWord(editor.firstChild, 19, "You should not see ");
testDeletePrevWord(editor.firstChild, 15, "You should not ");
testDeletePrevWord(editor.firstChild, 11, "You should ");
testDeletePrevWord(editor.firstChild, 4, "You ");
testDeletePrevWord(editor, 0, "");
setupTest("You should not see this text.", 0);
testDeleteNextWord(editor.firstChild, 0, "\u00A0should not see this text.");
testDeleteNextWord(editor.firstChild, 0, "\u00A0not see this text.");
testDeleteNextWord(editor.firstChild, 0, "\u00A0see this text.");
testDeleteNextWord(editor.firstChild, 0, "\u00A0this text.");
testDeleteNextWord(editor.firstChild, 0, "\u00A0text.");
// testDeleteNextWord(editor, 0, "");
// Tests for Bug 502259
setupTest("<p>Bug</p>\n<p>502259</p>", 1);
testDelete(function(){return editor.firstChild.firstChild;}, 3, "<p>Bug502259</p>", true);
// Tests for Bug 507936
var nodecallback = function(){return editor.firstChild.firstChild.lastChild.firstChild.lastChild;};
setupTest("<ol><li>one<ol><li>two</li></ol></li></ol>\n<p>three</p>", 3, nodecallback);
testDelete(nodecallback, 0, "<ol><li>one<ol><li>twothree</li></ol></li></ol>", true);
setupTest("<ol><li>one<ol><li>two</li></ol></li></ol>\n<hr>\n<p>three</p>", 3, nodecallback);
testDelete(nodecallback, 3,
"<ol><li>one<ol><li>two</li></ol></li></ol><p>three</p>", true);
// Tests for Bug 519751
var nodecallback = function(){return editor.firstChild.lastChild;};
setupTest("<p>one</p><ol><li>two</li><li>three</li></ol>", 3, nodecallback);
testDelete(nodecallback, 0, "<p>onetwo</p><ol><li>three</li></ol>", true);
nodecallback = function(){return editor.firstChild.childNodes[1].firstChild;};
setupTest("<ol><li>one</li><li>two</li></ol><ol><li>three</li><li>four</li></ol>", 3, nodecallback);
testDelete(function(){return editor.firstChild.childNodes[2].firstChild;},
0, "<ol><li>one</li><li>two</li><li>three</li><li>four</li></ol>", true);
/*todo_is(false, true, 'The above testDelete should use the same nodecallback' +
'as in the proceeding setupTest: the cursor should stay at the end of "two", while currently it is at the beginning of "three" after delete');*/
// More Tests for Bug 507936
nodecallback = function(){return editor.firstChild.firstChild.firstChild;}
setupTest("<div><div>abcdef</div><div>bar</div><div>ghi</div></div>", 5, nodecallback);
sel.extend(editor.lastChild.lastChild.lastChild, 1);
testDelete(editor.lastChild.lastChild.lastChild, 5, "<div><div>abcdehi</div></div>", true);
setupTest("<div><div>abcdef</div><div>ghi</div></div>", 5, nodecallback);
sel.extend(editor.lastChild.lastChild.lastChild, 1);
testDelete(editor.lastChild.lastChild.lastChild, 5, "<div><div>abcdehi</div></div>", true);
nodecallback = function(){return editor.firstChild.firstChild;}
setupTest("<div>abcdef<div><div>bar</div>ghi</div></div>", 5, nodecallback);
sel.extend(editor.lastChild.lastChild.lastChild, 1);
expectednodecallback = function(){return editor.lastChild.lastChild;}
testDelete(expectednodecallback, 0, "<div>abcdehi</div>", true);
setupTest("<div>abcdef<div>ghi</div></div>", 5, nodecallback);
sel.extend(editor.lastChild.lastChild.lastChild, 1);
testDelete(expectednodecallback, 0, "<div>abcdehi</div>", true);
SimpleTest.finish();
}
SimpleTest.waitForExplicitFinish();
addLoadEvent(execTests);
]]>
</script>
<body id="html_body" xmlns="http://www.w3.org/1999/xhtml">
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=462188">Mozilla Bug 462188</a>
<p id="display"></p>
<pre id="test">
</pre>
<iframe id="edit" width="200" height="100" src="about:blank"/>
</body>
</window>
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