I have problems to navigate in the DOM tree. Starting from a node $node (WWW::Mechanize::Chrome::Node) in WWW::Mechanize::Chrome I would like to access the parent node. In WWW::Mechanize::Firefox I did this by using for example an XPath like
@parent_node = $mech->xpath('./parent::*', node => $node )
However it was also possible to directly access nodes like for instance with
$node->{parentElement}
I do not know how to realize this in WWW::Mechanize::Chrome. The author of that module writes in the documentation regarding my first approach: "Querying relative to a node only works for restricting to children of the node, not for anything else. This is because we need to do the ancestor filtering ourselves instead of having a Chrome API for it." Regarding my second approach I noticed that the WWW::Mechanize::Chrome::Node-Object is providing a parentID but I could not figure out how this will help. How can I access a node-object by using this ID?

I would like to know how to access a parent node in order to generate an xpath from a node as I did within WWW::Mechanize::Firefox. Another solution could be the use of the callFunctionOn-function provided by WWW::Mechanize::Chrome and to realize that with JavaScript. However I did not check this out so far.

If the problem with the parent node is solvable then the next problem will be that I will need something like
@preceding_sibling = $mech->xpath("count(preceding-sibling::$node_name)", node => $node )
I did not check if this will work in WWW::Mechanize::Chrome.


In reply to WWW::Mechanize::Chrome -> Access Parent Node by 1nelly1

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.