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diff --git a/layout/generic/test/test_backspace_delete.xul b/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);
+ }
+
+ var eatSpace;
+ var deleteImmediately;
+
+ function getPrefs(branch) {
+ const prefSvcContractID = "@mozilla.org/preferences-service;1";
+ const prefSvcIID = Components.interfaces.nsIPrefService;
+ return Components.classes[prefSvcContractID].getService(prefSvcIID)
+ .getBranch(branch);
+ }
+
+ function setPref(branch, pref, newValue) {
+ getPrefs(branch).setBoolPref(pref, newValue);
+ return newValue;
+ }
+
+ function restorePref(branch, pref, newValue) {
+ try {
+ getPrefs(branch).clearUserPref(pref);
+ } catch(ex) {}
+ }
+
+ function setEatSpace(newValue) {
+ eatSpace = setPref("layout.word_select.", "eat_space_to_next_word", newValue);
+ }
+
+ function restoreEatSpace() {
+ restorePref("layout.word_select.", "eat_space_to_next_word");
+ }
+
+ function setDeleteImmediately(newValue) {
+ deleteImmediately = setPref("bidi.edit.", "delete_immediately", newValue);
+ }
+
+ function restoreDeleteImmediately() {
+ restorePref("bidi.edit.", "delete_immediately");
+ }
+
+ function doCommand(cmd) {
+ var controller = document.commandDispatcher.getControllerForCommand(cmd);
+ if (controller) {
+ try {
+ controller.doCommand(cmd);
+ ok(true, 'doCommand(' + cmd + ') succeeded');
+ } catch(ex) {
+ ok(false, 'exception in doCommand(' + cmd + '): ', ex.message);
+ }
+ }
+ }
+
+ function testRight(node, offset) {
+ doCommand("cmd_charNext");
+ var msg = "Right movement broken in \"" + editor.innerHTML + "\", offset " + offset;
+ is(sel.anchorNode, node, msg);
+ is(sel.anchorOffset, offset, 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) {
+ doCommand("cmd_deleteCharForward");
+ var msg = "Delete broken in \"" + editor.innerHTML + "\", offset " + offset + " with deleteImmediately=" + deleteImmediately;
+ if(typeof node == 'function'){
+ node = node();
+ }
+ is(sel.anchorNode, node, msg);
+
+ is(sel.anchorOffset, offset, msg);
+ let text_result = richtext ? editor.innerHTML : editor.textContent;
+ is(text_result, text, msg);
+ }
+
+ function testBackspace(node, offset, text) {
+ doCommand("cmd_deleteCharBackward");
+ var msg = "Backspace broken in \"" + editor.innerHTML + "\", offset " + offset + " with deleteImmediately=" + deleteImmediately;
+ is(sel.anchorNode, node, msg);
+
+ is(sel.anchorOffset, offset, msg);
+ is(editor.textContent, text, 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);
+ testDelete(editor.firstChild, 5, "สสพ่แพี่น้อง", false);
+ testRight(editor.firstChild, 8);
+ testDelete(editor.firstChild, 8, "สสพ่แพี่อง", false);
+ testRight(editor.firstChild, 9);
+ testDelete(editor.firstChild, 9, "สสพ่แพี่อ", false);
+
+ // 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);
+ testBackspace(editor.firstChild, 3, "วดพม่พี่น้อง");
+ testRight(editor.firstChild, 5);
+ testBackspace(editor.firstChild, 4, "วดพมพี่น้อง");
+ testRight(editor.firstChild, 7);
+ testBackspace(editor.firstChild, 6, "วดพมพีน้อง");
+ testRight(editor.firstChild, 8);
+ testBackspace(editor.firstChild, 7, "วดพมพีนอง");
+ testRight(editor.firstChild, 8);
+ testBackspace(editor.firstChild, 7, "วดพมพีนง");
+ testRight(editor.firstChild, 8);
+ testBackspace(editor.firstChild, 7, "วดพมพีน");
+
+ // 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";
+
+ setDeleteImmediately(true);
+
+ setupTest(s, 4);
+ testRight(editor.firstChild, 5);
+ testDelete(editor.firstChild, 5, "helloלום");
+
+ setDeleteImmediately(false);
+
+ setupTest(s, 4);
+ testRight(editor.firstChild, 5);
+ testDelete(editor.firstChild, 5, "helloשלום");
+
+ // Tests for bug 1034337
+ s = "اهلاhello";
+
+ setDeleteImmediately(true);
+
+ setupTest(s, 4);
+ // first delete an ltr character to make sure that the caret is ltr
+ testDelete(editor.firstChild, 4, "اهلاello");
+ testBackspace(editor.firstChild, 3, "اهلello");
+
+ setDeleteImmediately(false);
+
+ setupTest(s, 4);
+ // first delete an ltr character to make sure that the caret is ltr
+ testDelete(editor.firstChild, 4, "اهلاello");
+ testBackspace(editor.firstChild, 4, "اهلاello");
+
+ restoreDeleteImmediately();
+
+ // 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>