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Diffstat (limited to 'dom/tests/js/DumpTree.js')
| -rw-r--r-- | dom/tests/js/DumpTree.js | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/dom/tests/js/DumpTree.js b/dom/tests/js/DumpTree.js new file mode 100644 index 000000000..d23c2b3b3 --- /dev/null +++ b/dom/tests/js/DumpTree.js @@ -0,0 +1,44 @@ +/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */ + + +// +// travers the html tree and dump out the type of element +// +function traverse(node, indent) +{ + dump("\n") + indent += " " + var type = node.nodeType; + + // if it's an element dump the tag and recurse the children + if (type == Node.ELEMENT_NODE) { + + dump(indent + node.tagName) + + // go through the children + if (node.hasChildNodes()) { + var children = node.childNodes; + var length = children.length; + var count = 0; + while(count < length) { + child = children[count] + traverse(child, indent) + count++ + } + } + } + // it's just text, no tag, dump "Text" + else if (type == Node.TEXT_NODE) { + dump(indent + "Text") + } +} + +var node = document.documentElement + +traverse(node, "") +dump("\n") + +
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