gecko/layout/html/tests/TestInsert.js

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
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* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
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*
* ***** END LICENSE BLOCK ***** */
var count = 0;
function trace(msg)
{
dump("test " + msg + " (" + count + ")\n");
}
function findBody(node)
{
var children = node.childNodes;
var length = children.length;
var child = null;
var count = 0;
while (count < length) {
child = children.item(count);
if (child.tagName == "BODY") {
return child;
}
var body = findBody(child);
if (null != body) {
return body;
}
count++;
}
return null;
}
function TestInsert(parent, child)
{
var childTag = "(text)";
if (child.nodeType != Node.TEXT_NODE) {
childTag = child.tagName;
}
// Insert a piece of text before the span; this tests insertion at the
// beginning
trace("insert before [" + parent.tagName + "," + childTag + "]");
count++;
var beforeText = document.createTextNode("before ");
parent.insertBefore(beforeText, child);
// Insert a piece of text before the span; after the above, this tests
// insertion in the middle.
trace("insert middle [" + parent.tagName + "," + childTag + "]");
count++;
parent.insertBefore(document.createTextNode("middle "), child);
}
var body = findBody(document.documentElement);
// Create a block child with a span in it
var block = document.createElement("P");
var span = document.createElement("SPAN");
var spanText = document.createTextNode("Some text");
span.insertBefore(spanText, null);
block.insertBefore(span, null);
// Append the block to the body
body.insertBefore(block, null);
// Insert stuff into the block
TestInsert(block, span);
// Insert stuff into the span
TestInsert(span, spanText);