gecko/dom/tests/js/tables/changeCell.js
2012-05-21 12:12:37 +01:00

105 lines
2.3 KiB
JavaScript

/* -*- Mode: js; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
function findBody(node)
{
if (node.nodeType != Node.ELEMENT_NODE) {
return null;
}
var children = node.childNodes;
if (children == null) {
return null;
}
var length = children.length;
var child = null;
var count = 0;
while (count < length) {
child = children[count];
if (child.tagName == "BODY") {
dump("BODY found");
return child;
}
var body = findBody(child);
if (null != body) {
return body;
}
count++;
}
return null;
}
// Given the body element, find the first table element
function findTable(body)
{
// XXX A better way to do this would be to use getElementsByTagName(), but
// it isn't implemented yet...
var children = body.childNodes
if (children == null) {
return null;
}
var length = children.length;
var child = null;
var count = 0;
while (count < length) {
child = children[count];
if (child.nodeType == Node.ELEMENT_NODE) {
if (child.tagName == "TABLE") {
dump("TABLE found");
break;
}
}
count++;
}
return child;
}
// Given a table element, find the first table body
function findTableBody(table)
{
// XXX A better way to do this would be to use getElementsByTagName(), but
// it isn't implemented yet...
var children = table.childNodes
if (children == null) {
return null;
}
var length = children.length;
var child = null;
var count = 0;
while (count < length) {
child = children[count];
if (child.nodeType == Node.ELEMENT_NODE) {
if (child.tagName == "TBODY") {
break;
}
}
count++;
}
return child;
}
// Change the text of the first table cell
function changeCell(table)
{
// Get a table body
var body = findTableBody(table)
// The table body's first child is a table row
var row = body.firstChild
// The row's first child is a table cell
var cell = row.firstChild
// Get the cell's text
var text = cell.firstChild
// Append some text
text.append(" NEW TEXT")
}
changeCell(findTable(findBody(document.documentElement)))